CN217475727U - Multipurpose comprehensive pliers with parallel clamping surfaces - Google Patents

Abstract

The utility model relates to an instrument pincers field especially relates to a multipurpose combined pliers with parallel clamping face, has solved the not firm, the unstable wearing and tearing problem that leads to the fact of centre gripping work piece of the clamp pressure work piece that current pincers commonly used exist. The novel multifunctional pliers are characterized by comprising fixed pliers heads, movable pliers heads, fixed handles, handle supports and movable handles. The fixed handle is fixedly arranged in a mounting hole reserved in the fixed tong head; the handle bracket and the fixed handle are fixedly arranged through a bolt and a nut; the movable handle is connected with the handle bracket through a rotating shaft, and one end of the movable handle is provided with a gear which is in meshed transmission connection with the rack on the movable tong head. When the fixed handle and one end of the movable handle, which is far away from the clamp head, are close to each other, the gear is far away from the handle bracket, and the movable clamp head is pushed to enable the two clamping surfaces to be close to each other; when the fixed handle and the movable handle are far away from the end of the clamp head, the gear is close to the handle bracket, the return spring pushes the movable clamp head, the gear and the rack keep a meshing state, and the two clamping surfaces are far away from each other.

Description

A multipurpose integrated pliers with parallel clamping surfaces

technical field

The utility model relates to the field of tool pliers, in particular to a multipurpose comprehensive pliers with parallel clamping surfaces.

Background technique

At present, common pliers such as ordinary flat-nose pliers and wire crimping pliers generally have two non-parallel clamping surfaces. The clamping process is realized by the relative rotation of the two clamping surfaces around the same axis. The movement track of any point on the clamping surface for an arc. When the common pliers work, the two clamping surfaces are at a certain angle, and the size of the angle opening and closing is determined by the size of the workpiece to be clamped, but the common pliers are not reliable in clamping the workpiece and need to be repeatedly pressed, thereby increasing the workload; clamping The workpiece is unstable, and the resultant force of the supporting force provided by the two clamping surfaces points in the direction of the opening, which is easy to cause the workpiece to fall off; the unstable clamping of the workpiece or repeated clamping after falling off causes unnecessary wear on the workpiece and the clamping surface.

The existing parallel pliers technology is mostly used in the field of vise. For example, the Chinese patent document with the application number of 201911010152.9 discloses a flat pliers, which can only be used after being fixed in a stable position such as a fitter table; a hand-held tool pliers with parallel clamping surfaces Less, and more or less there are some deficiencies, such as the Chinese patent document of application number 201520542486.1 discloses a parallel clamp, although this solution realizes that the two clamping surfaces are parallel when clamping the workpiece, but the two clamps are in the clamping process. The holding surface will produce relative displacement perpendicular to the direction of the clamping surface, resulting in unstable contact and wear between the clamping surface and the workpiece.

Utility model content

The purpose of the present utility model is to provide a multi-purpose integrated pliers with parallel clamping surfaces, which solves the difficulties in practical work and makes up for the deficiencies of the commonly used pliers described in the background art; the utility model can realize that the two clamping surfaces are always parallel to each other. It can effectively improve the efficiency and stability of clamping the workpiece, and avoid the workpiece and clamping surface wear caused by the workpiece falling off and repeated clamping.

In order to achieve the above purpose, the utility model provides a multi-purpose integrated pliers with parallel clamping surfaces, comprising: a fixed pliers head 1, a movable pliers head 2, a fixed handle 3, a handle bracket 4, and a movable handle 5;

The fixed pliers 1 is composed of a fixed handle mounting hole 1-1, a spring shaft limit hole 1-2, a guide rail 1-3, and a first clamping surface 1-4;

The movable pliers 2 is composed of a rack 2-1, a spring shaft 2-2, a return spring 2-3, a guide chute 2-4, and a second clamping surface 2-5;

The fixed handle 3 includes a bolt hole 3-1;

The handle bracket 4 is composed of a handle shaft nut 4-1, a handle shaft bolt 4-2, a handle shaft sleeve 4-3, a handle fixing bolt 4-4, and a handle fixing nut 4-5;

The movable handle 5 is composed of a handle shaft hole 5-1, a gear 5-2, a gear shaft nut 5-3, a gear shaft sleeve 5-4, and a gear shaft bolt 5-5;

The fixed pliers 1 and the movable pliers 2 are slidably matched through the guide rails 1-3 and the guide grooves 2-4, and the return spring 2-3 is sleeved on the spring shaft 2- 2, one end of the return spring 2-3 is welded and fixed to the bottom of the spring shaft 2-2, and the other end abuts on the plane where the outer end of the spring shaft limit hole 1-2 is located. 2-2 slidingly fits with the spring shaft limit hole 1-2; one end of the fixed handle 3 is interference fit in the fixed handle mounting hole 1-1, and the handle bracket 4 is fixed by the handle fixing bolt 4 -4 and the handle fixing nut 4-5 are installed at the position of the bolt hole 3-1 reserved on the fixing handle 3; the rack 2-1 is an interference fit on the movable pliers head 2 In the reserved rack installation slot; the gear 5-2 is installed on the movable handle 5 near the movable handle 5 through the gear shaft composed of the gear shaft sleeve 5-4, the gear shaft nut 5-3 and the gear shaft bolt 5-5. One end of the movable pliers head 2 is meshed and connected with the rack 2-1; the movable handle 5 and the handle bracket 4 pass through the handle shaft sleeve 4-3, the handle shaft nut 4-1 and the A rotating shaft composed of handle rotating shaft bolts 4-2 is connected to the handle bracket 4.

The utility model provides a multi-purpose integrated pliers with parallel clamping surfaces. Compared with the prior art, both clamping surfaces in this solution are kept perpendicular to the relative movement direction. Keep parallel at all times; when clamping the workpiece, the supporting forces provided by the two clamping surfaces are equal and opposite, which effectively improves the holding efficiency, ensures the stability of the clamping, and avoids the workpiece falling off and repeated clamping and the resulting wear problem.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of a comprehensive clamp provided by an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a fixed forceps head provided by an embodiment of the present invention.

FIG. 3 is a schematic structural diagram of a movable pliers head provided by an embodiment of the present invention.

4 is a schematic structural diagram of a fixed handle provided by an embodiment of the present invention.

FIG. 5 is a schematic diagram of a handle bracket and an installation structure thereof provided by an embodiment of the present invention.

6 is a schematic diagram of a movable handle and its assembly provided by an embodiment of the present invention.

In the figure: Fixed clamp head 1, movable clamp head 2, fixed handle 3, handle bracket 4, movable handle 5, fixed handle mounting hole 1-1, spring shaft limit hole 1-2, guide rail 1-3 , One clamping surface 1-4, rack 2-1, spring shaft 2-2, return spring 2-3, guide chute 2-4, second clamping surface 2-5, bolt hole 3-1, handle shaft Nut 4-1, handle shaft bolt 4-2, handle shaft sleeve 4-3, handle fixing bolt 4-4, handle fixing nut 4-5, handle shaft hole 5-1, gear 5-2, gear shaft nut 5 -3, gear shaft sleeve 5-4, gear shaft bolt 5-5.

Detailed ways

The embodiments of the present utility model will be described in further detail below. The descriptions are only for introducing the technical solutions in the present application, and are not intended to limit the present utility model. Content that is not described in detail in the embodiments of the present utility model belongs to the present utility model. State of the art known to those skilled in the art.

As shown in FIGS. 1 to 6 , the present invention provides a multi-purpose integrated pliers with parallel clamping surfaces, including a fixed pliers head 1 , a movable pliers head 2 , a fixed handle 3 , a handle bracket 4 , and a movable handle 5 ;

The fixed pliers 1 is composed of a fixed handle mounting hole 1-1, a spring shaft limit hole 1-2, a guide rail 1-3, and a first clamping surface 1-4;

The movable pliers 2 is composed of a rack 2-1, a spring shaft 2-2, a return spring 2-3, a guide chute 2-4, and a second clamping surface 2-5;

The fixed handle 3 includes a bolt hole 3-1;

The handle bracket 4 is composed of a handle shaft nut 4-1, a handle shaft bolt 4-2, a handle shaft sleeve 4-3, a handle fixing bolt 4-4, and a handle fixing nut 4-5;

The movable handle 5 is composed of a handle shaft hole 5-1, a gear 5-2, a gear shaft nut 5-3, a gear shaft sleeve 5-4, and a gear shaft bolt 5-5;

The fixed pliers 1 and the movable pliers 2 are slidably matched through the guide rails 1-3 and the guide grooves 2-4, and the return spring 2-3 is sleeved on the spring shaft 2- 2, one end of the return spring 2-3 is welded and fixed to the bottom of the spring shaft 2-2, and the other end abuts on the plane where the outer end of the spring shaft limit hole 1-2 is located. 2-2 slidingly fits with the spring shaft limit hole 1-2; one end of the fixed handle 3 is interference fit in the fixed handle mounting hole 1-1, and the handle bracket 4 is fixed by the handle fixing bolt 4 -4 and the handle fixing nut 4-5 are installed at the position of the bolt hole 3-1 reserved on the fixing handle 3; the rack 2-1 is an interference fit on the movable plier head 2 In the reserved rack installation slot; the gear 5-2 is installed on one end of the movable handle 5 through the gear shaft composed of the gear shaft sleeve 5-4, the gear shaft nut 5-3 and the gear shaft bolt 5-5 , and is meshed and connected with the rack 2-1; the movable handle 5 and the handle bracket 4 are composed of a handle shaft sleeve 4-3, a handle shaft nut 4-1 and a handle shaft bolt 4-2. The rotating shaft is connected with the handle bracket 4 through the handle rotating shaft.

The utility model innovatively designs the cooperation and movement modes of the fixed pliers 1 and the movable pliers 2 where the two clamping surfaces are respectively located, so that the two clamping surfaces can be kept parallel at any time, and can be easily and Stable and efficient completion of clamping work.

Compared with the prior art, the utility model has the advantages that: the two clamping surfaces are kept parallel at any time; in the process of completing the clamping work, the entire area where the workpiece contacts the clamping surface is uniformly stressed, and the pressure is stable. The work requirements can be met by one pressurization; in the process of completing the clamping work, the supporting force provided by the two clamping surfaces is equal, opposite, and collinear. The resultant force is zero, which can achieve stable clamping and avoid the workpiece falling off; small size It is flexible and has strong environmental adaptability. It can efficiently and stably complete the clamping and clamping work in the hand-held state, which saves working time and avoids unnecessary wear between the workpiece and the clamping surface. It has strong practicality. sex.

Specific examples:

As shown in Fig. 1 to Fig. 6 , it includes a fixed pliers head 1, a movable pliers head 2, a fixed handle 3, a handle bracket 4, and a movable handle 5. The fixed pliers head 1 (Fig. 2) consists of a fixed handle mounting hole 1- 1. The spring shaft limit hole 1-2, the guide rail 1-3, and the first clamping surface 1-4 are composed; the movable clamp head 2 (Fig. 3) consists of a rack 2-1, a spring shaft 2-2 , a return spring 2-3, a guide chute 2-4, and a second clamping surface 2-5; the fixed handle 3 (Fig. 4) includes a bolt hole 3-1; the handle bracket 4 (Fig. 5) consists of Handle shaft nut 4-1, handle shaft bolt 4-2, handle shaft sleeve 4-3, handle fixing bolt 4-4, handle fixing nut 4-5; the movable handle 5 (Figure 6) consists of a handle shaft hole 5-1, gear 5-2, gear shaft nut 5-3, gear shaft sleeve 5-4, gear shaft bolt 5-5; the fixed plier head 1 and the movable plier head 2 slide through the guide The rail 1-3 is slidingly matched with the guide chute 2-4, the return spring 2-3 is sleeved on the spring shaft 2-2, and one end of the return spring 2-3 is welded and fixed to the spring The bottom of the shaft 2-2, the other end abuts on the plane where the outer end of the spring shaft limit hole 1-2 is located, and the spring shaft 2-2 is slidingly matched with the spring shaft limit hole 1-2; One end of the fixing handle 3 is interference fit in the fixing handle mounting hole 1-1, and the handle bracket 4 is installed on the fixing handle 3 through the handle fixing bolt 4-4 and the handle fixing nut 4-5. The position of the bolt hole 3-1 reserved on the upper side; the rack 2-1 is an interference fit in the rack installation slot reserved on the movable pliers 2; the gear 5-2 passes through the gear shaft A gear shaft consisting of a sleeve 5-4, a gear shaft nut 5-3, and a gear shaft bolt 5-5 is installed at one end of the movable handle 5, and is engaged and connected with the rack 2-1 for transmission; the movable handle 5 The handle bracket 4 is connected to the handle bracket 4 through a handle shaft through a shaft consisting of a handle shaft sleeve 4-3, a handle shaft nut 4-1 and a handle shaft bolt 4-2.

2 is a schematic structural diagram of the fixed pliers head 1, which mainly includes a fixed handle mounting hole 1-1, a spring shaft limit hole 1-2, a guide rail 1-3, and a first clamping surface 1-4, wherein the The three axes of the fixed handle mounting hole 1-1, the spring shaft limiting hole 1-2 and the guide rail 1-3 are parallel to each other and perpendicular to the first clamping surface 1-4.

3 is a schematic structural diagram of the movable pliers head 2, which mainly includes a rack 2-1, a spring shaft 2-2, a return spring 2-3, a guide chute 2-4, and a second clamping surface 2-5. The two axes of the guide chute 2-4 coincide with the two axes of the spring shaft 2-2 and are perpendicular to the plane where the second clamping surface 2-5 and the rack 2-1 are located, and the rack 2-1 It is an interference fit with the reserved rack mounting slot, the return spring 2-3 is sleeved on the spring shaft 2-2, and one end of the return spring 2-3 is welded and fixed to the spring shaft 2- 2 bottom.

FIG. 4 is a schematic structural diagram of the fixed handle 3 , which includes bolt holes 3 - 1 for installing the fixed handle bracket 4 .

5 is a schematic diagram of the handle bracket 4 and its installation structure, which mainly includes a handle shaft nut 4-1, a handle shaft bolt 4-2, a handle shaft sleeve 4-3, a handle fixing bolt 4-4, and a handle fixing nut 4- 5, wherein the handle fixing bolt 4-4 and the handle fixing nut 4-5 are used to limit the relative position of the handle bracket 4 and the fixing handle 3 through screw connection, and the handle shaft sleeve 4-3 It is a clearance fit with the handle bracket 4 and the movable handle 5, which can realize relative movement. The handle shaft bolt 4-2 and the handle shaft nut 4-1 are connected by threads to define the handle shaft sleeve. 4-3. The relative positions of the handle bracket 4 and the movable handle 5 .

6 is a schematic diagram of the movable handle 5 and its assembly, which mainly includes a handle shaft hole 5-1, a gear 5-2, a gear shaft nut 5-3, a gear shaft sleeve 5-4, and a gear shaft bolt 5-5, wherein The handle shaft hole 5-1 is used to connect the handle bracket 4 and the movable handle 5, and the gear shaft sleeve 5-4 is a clearance fit with the movable handle 5 and the gear 5-2, and can To achieve relative movement, the gear shaft nut 5-3 and the gear shaft bolt 5-5 are threadedly connected to define the movable handle 3, the gear 5-2 and the gear shaft sleeve 5-4 relative position.

working principle:

When the integrated pliers are in a natural state, the return spring 2-3 provides a restoring force, so that the jaws are in an open state, and the first clamping surface 1-4 and the second clamping surface 2-5 are in The position with the farthest relative distance; when the integrated pliers are in the working state, hold the fixed handle 3 and the movable handle 5 so that the movable handle 5 is surrounded by the handle shaft sleeve 4-3 and the handle shaft nut 4 -1 and the handle shaft bolt 4-2, the handle shaft rotates, the fixed handle 3 and the movable handle 5 are close to each other at the ends away from the fixed pliers 1 and the movable pliers 2, and the movable handle 5 The end equipped with the gear 5-2 moves in a direction away from the handle bracket 4, and the gear 5-2 is engaged with the rack 2-1 for transmission to push the movable pliers 2 along the guide The slide rail 1-3 moves away from the handle bracket 4, and the first clamping surface 1-4 and the second clamping surface 2-5 are close to each other, so as to complete the clamping or clamping work; Under the action of the holding force and the restoring force, the two clamping surfaces can be approached or separated from each other, so as to realize the functions of clamping, clamping and resetting of the integrated pliers.

The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. The changes or replacements should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (4)

1. A multipurpose comprehensive pliers with parallel clamping surfaces is characterized by comprising a fixed pliers head (1), a movable pliers head (2), a fixed handle (3), a handle bracket (4) and a movable handle (5); the fixed binding clip (1) consists of a fixed handle mounting hole (1-1), a spring shaft limiting hole (1-2), a guide slide rail (1-3) and a first clamping surface (1-4), wherein the fixed handle mounting hole (1-1) is arranged at one end of the fixed binding clip (1), the spring shaft limiting hole (1-2) is arranged at the center of the guide slide rail (1-3), and the fixed handle mounting hole (1-1) and the spring shaft limiting hole (1-4) are arranged at the center of the guide slide rail (1-3)ShaftThe axes of the limiting hole (1-2) and the guide sliding rail (1-3) are parallel to each other and are vertical to the first clamping surface (1-4); the movable binding clip (2) consists of a rack (2-1), a spring shaft (2-2), a return spring (2-3) and a guide slideThe rack (2-1) is in interference fit in a mounting groove reserved in the movable tong head (2), and the spring shaft (2-2) is overlapped with the axis of the guide sliding groove (2-4) and is perpendicular to the second clamping surface (2-5); the fixing handle (3) comprises a bolt hole (3-1), and the bolt hole (3-1) is perpendicular to and intersected with the axis of the fixing handle (3); the handle support (4) consists of a handle rotating shaft nut (4-1), a handle rotating shaft bolt (4-2), a handle rotating shaft sleeve (4-3), a handle fixing bolt (4-4) and a handle fixing nut (4-5), and the axes of the handle rotating shaft bolt (4-2) and the handle rotating shaft sleeve (4-3) are mutually superposed and are parallel to the axis of the handle fixing bolt (4-4); the movable handle (5) consists of a handle rotating shaft hole (5-1), a gear (5-2), a gear rotating shaft nut (5-3), a gear rotating shaft sleeve (5-4) and a gear rotating shaft bolt (5-5), and the axes of the gear rotating shaft bolt (5-5), the gear rotating shaft sleeve (5-4) and the gear (5-2) are superposed and are parallel to the axis of the handle rotating shaft hole (5-1).

2. The multipurpose combined pliers with parallel clamping surfaces as claimed in claim 1, wherein the fixed pliers head (1) and the movable pliers head (2) are slidably matched through the guide sliding rail (1-3) and the guide sliding groove (2-4); the reset spring (2-3) is sleeved on the spring shaft (2-2), one end of the reset spring (2-3) is fixedly connected to the bottom of the spring shaft (2-2) in a welding mode, the other end of the reset spring abuts against a plane where the outer end of the spring shaft limiting hole (1-2) is located, and the spring shaft (2-2) is in sliding fit with the spring shaft limiting hole (1-2); one end of the fixed handle (3) is in interference fit with the fixed handle mounting hole (1-1); the handle bracket (4) is arranged at the position of the bolt hole (3-1) reserved on the fixed handle (3) through the handle fixing bolt (4-4) and the handle fixing nut (4-5); the rack (2-1) is in interference fit in a rack mounting groove reserved on the movable binding clip (2); the gear (5-2) is arranged at one end of the movable handle (5) through a gear rotating shaft consisting of a gear rotating shaft sleeve (5-4), a gear rotating shaft nut (5-3) and a gear rotating shaft bolt (5-5) and is in meshed transmission connection with the rack (2-1); the movable handle (5) is connected with the handle bracket (4) through a rotating shaft consisting of a handle rotating shaft sleeve (4-3), a handle rotating shaft nut (4-1) and a handle rotating shaft bolt (4-2).

3. Multipurpose combined pliers according to claim 1, characterized in that it comprises said first gripping surface (1-4) and said second gripping surface (2-5) remaining parallel at any one time, mainly achieved by: the fixed binding clip (1) is characterized in that the fixed handle mounting hole (1-1), the spring shaft limiting hole (1-2) and the guide sliding rail (1-3) are parallel to each other and vertical to the first clamping surface (1-4); the movable tong head (2) is characterized in that the guide sliding groove (2-4) is superposed with the two axes of the spring shaft (2-2) and is vertical to the second clamping surface (2-5); when the fixed tong head (1) and the movable tong head (2) are in sliding fit with the guide sliding chutes (2-4) through the guide sliding rails (1-3), the relative movement direction of the fixed tong head (1) and the movable tong head (2) is always vertical to the first clamping surfaces (1-4) and the second clamping surfaces (2-5), so that the first clamping surfaces (1-4) and the second clamping surfaces (2-5) are always parallel in the process of approaching or separating from each other.

4. The multipurpose comprehensive pliers with parallel clamping surfaces according to claim 1, wherein the movable handle (5) and the movable pliers head (2) are connected in a manner of meshing transmission through the gear (5-2) and the rack (2-1), when the movable handle rotates around a handle rotating shaft consisting of a handle rotating shaft sleeve (4-3), a handle rotating shaft nut (4-1) and a handle rotating shaft bolt (4-2), the motion track of any point on the axis of the gear (5-2) is a section of circular arc, when the movable handle (5) is perpendicular to the handle bracket (4), the distance between the axis of the gear and the handle bracket (4) is farthest, the first clamping surface (1-4) is in contact with the second clamping surface (2-5), and the movable pliers head (2) reaches an extreme position, when the fixed handle (3) and the movable handle (5) are far away from the fixed tong head (1) and the movable tong head (2), the axis of the gear (5-2) is close to the handle bracket (4), and the reset spring (2-3) provides reset force, so that the gear (5-2) and the rack (2-1) are always in a meshed state, and the two clamping surfaces are opened and closed.

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