CN110145613A - A joint assembly with a valve - Google Patents

Abstract

The present invention relates to a kind of band valve union components, including valve body, core and connector, the valve body includes the outlet cavity being sequentially communicated, core cavity and inlet cavities, the core is placed in core cavity and is rotatablely connected with valve body, the connector is connect by being inserted into outlet cavity with valve body, and the outlet cavity is matched with connector；The connector is equipped with splice cavity, and the core is equipped with through-hole, and the splice cavity is connected to when valve is opened with through-hole；The connector is equipped with groove with the matched cambered surface of core, the connector being formed with core junction, and the hook card body in the core can be inserted into groove, fix connector.Compared with prior art, the present invention has disassembling, assembling and replacing quick, and compact-sized, highly-safe, components are few, high reliability.

Description

A joint assembly with a valve

technical field

The invention relates to the field of ball valves, in particular to a joint assembly with a valve.

Background technique

The ball valve came out in the 1950s. With the rapid development of science and technology, the continuous improvement of production technology and product structure, in just 40 years, it has rapidly developed into a major valve category, occupying an important position in the national economy. pivotal position. There are many types of ball valves, including floating ball valves, fixed ball valves, elastic ball valves, V-shaped ball valves, three-way ball valves, and eccentric ball valves. These ball valves often include a valve body, a ball, a seat seal, packing, a valve stem, a packing gland and a handle (or other driving device), wherein the valve body can be integral or combined. The working principle of these ball valves is the same: with the help of the handle (or other driving device), a certain torque is applied to the end of the valve stem and transmitted to the ball, so that the ball rotates 90° clockwise or counterclockwise, and the ball valve completes from fully open to full close or from full close to full open. When the ball valve is in the fully open position, the through hole of the ball coincides with the centerline of the channel of the valve body; when the ball valve is in the fully closed position, the through hole of the ball is perpendicular to the centerline of the channel of the valve body. Its basic function is to cut off and connect the fluid medium through the rotation of the ball core. Due to the small operating torque of the ball valve, stable transmission, and compact structure, it is a straight-through flow channel hole when it is fully opened. It has small fluid resistance, quick and convenient switching, easy to achieve rapid opening and closing, easy to clean the pipeline, and the seal between the valve seat and the ball. The surface is always in contact, high temperature resistance, not easy to be eroded by the medium, and the valve seat has good sealing performance.

The ball valve devices often used in the prior art are often complex in structure, and installation and replacement require a lot of time for dismantling screws, and when replacing the outlet joint, it is necessary to stop the fluid before the ball valve, remove the entire valve body, and replace it with a new outlet part. Open the ball valve, so it may cause fluid leakage in the upstream flow path, and there are certain safety hazards.

Chinese utility model CN206503958U specification discloses a ball valve switch, including a valve body, a ball valve part, a ball valve joint, and a handle. Installed in the accommodating cavity, one end of the ball valve joint is connected to the ball valve part, and the other end penetrates through the valve body and protrudes outside the valve body. An external spline is provided, and a spline sleeve capable of matching the external spline is provided on the handle, and the connecting bolt passes through the handle and is threadedly connected to the ball valve joint. This type of utility model ball valve joint is connected by bolts, so it takes a lot of time to disassemble the screws for installation and replacement.

Contents of the invention

The object of the present invention is to provide a valved joint assembly in order to overcome the above-mentioned defects in the prior art.

The purpose of the present invention can be achieved through the following technical solutions:

A joint assembly with a valve, including a valve body, a ball core and a joint. The body is rotatably connected, the joint is connected with the valve body by inserting into the outlet cavity, and the outlet cavity matches the joint;

The joint is provided with a joint cavity, the ball core is provided with a through hole, and the joint cavity communicates with the through hole when the valve is opened;

The connection between the joint and the ball core forms an arc surface matching the ball core, and the joint is provided with a groove.

The position of the ball core close to the outlet end of the through hole is a hook-shaped card body, and the hook-shaped card body is inserted into the groove at the end of the joint when the valve is opened, and fits with the groove at the end of the joint. The position of the ball core at the inlet end of the through hole is a limit stop body, and the curved surface of the joint blocks the limit stop body when the valve is closed. The groove fits with the hook-shaped card body on the ball core, and is stuck by the hook-shaped card body on the ball core, which limits the movement or disengagement of the joint, so that the joint will not be detached from the valve under the action of water flow or other forces .

The outlet width of the joint cavity is equal to the diameter of the through hole.

The joint is provided with a sealing ring at the place where it is inserted into the outlet cavity.

The sealing ring is connected around the joint.

The sealing ring is a silicone sealing ring.

A handle is also included, the handle is connected with the ball core, and the rotation of the handle drives the rotation of the ball core.

The upper end of the joint cavity is cylindrical, and the lower end is conical.

Compared with the prior art, the present invention has the following advantages:

(1) The structure is simple, and the safety of joint replacement is high.

(2) The connectors are directly matched and inserted into the valve body, without bolts and other fixings, and the replacement of the connectors is quick and time-saving.

(3) Compact structure, less parts, easy maintenance and processing.

(4) The joint is provided with a groove, which can lock the ball core and make the valve more stable during operation.

(5) The curved surface of the joint blocks the limit stop when the valve is closed, which can prevent the excessive rotation of the ball core.

(6) A sealing ring is provided at the place where the joint is inserted into the outlet cavity, and the sealing ring surrounds and connects to the joint, which can enhance the stability and tightness of the connection between the joint and the valve body.

(7) The outlet width of the joint cavity is equal to the diameter of the through hole, which can ensure the tightness and large flow rate at the same time.

Description of drawings

Fig. 1 is the structural representation of valve closed state of the present invention;

Fig. 2 is the structural representation of valve open state of the present invention;

Reference signs:

1 is the valve body; 2 is the joint; 3 is the core cavity; 4 is the inlet cavity; 5 is the joint cavity; 6 is the through hole; 7 is the hook-shaped card body; 8 is the limit stop; 9 is the ball Core; 10 is a sealing ring; 11 is a handle.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

Example

A joint assembly with a valve, as shown in Figures 1 and 2, includes a valve body 1, a ball core 9 and a joint 2, the valve body 1 includes an outlet cavity, a ball core cavity 3 and an inlet cavity 4 connected in sequence, and the ball core 9 Placed in the core cavity 3 and connected to the valve body 1 in rotation, the joint 2 is connected to the valve body 1 by inserting into the outlet cavity, and the outlet cavity matches the joint 2;

The joint 2 is provided with a joint cavity 5, the ball core 9 is provided with a through hole 6, and the joint cavity 5 communicates with the through hole 6 when the valve is opened;

The joint 2 forms an arc surface matching the ball core 9 at the joint with the ball core 9, and the joint 2 is provided with a groove.

The ball core 9 forms a hook-shaped locking body 7 at the outlet end of the through hole 6, and the hook-shaped locking body 7 is locked with the groove when the valve is opened, limiting the movement or separation of the joint. The ball core 9 forms a limit stop body 8 at the inlet end of the through hole 6, and the arc surface of the joint 2 blocks the limit stop body 8 when the valve is closed. The groove fits with the hook-shaped card body 7 on the ball core, and is stuck by the hook-shaped card body 7 on the ball core 9, which limits the movement or disengagement of the joint, so that the joint will not be disengaged under the action of water flow or other forces valve.

The outlet width of the joint cavity 5 is equal to the diameter of the through hole 6 .

The joint 2 is provided with a sealing ring 10 at the place inserted into the outlet cavity for effective sealing. The sealing ring 10 surrounds and connects to the joint 2, and the sealing ring 10 is a silicone sealing ring.

Also includes a handle 11, the handle 11 is connected with the ball core 9, and the rotation of the handle 11 drives the ball core 9 to rotate.

A method of fitting a fitting using a valved fitting assembly, the method comprising the steps of:

Step S1: Rotate the ball core 9 to close the valve;

Step S2: the joint 2 is inserted into the outlet cavity until the arc surface matches and contacts the ball core 9;

Step S3: Rotate the ball core 9 to lock the joint 2 with the ball core 9, and open the valve. The valve may be a ball valve.

In this embodiment, the upper end of the joint 2 is cylindrical and the lower end is conical, and one or more sealing rings 10 are installed on the lower end of the joint 2 .

The valve body 1 is a combined valve body.

The diameter of the cylindrical tubular part at the upper end of the joint 2 is 1-20 cm.

A groove is arranged near the bottom of the joint 2, and the groove is annular.

When the ball valve is closed, the upstream fluid is cut off, and the joint 2 can be taken out conveniently and quickly for replacement. At this time, the limit stop body 8 is blocked by the arc surface of the joint 2, so as to avoid excessive rotation. Replace with new fittings 2 of the same or different diameter as required. When replacing, directly pull out the old joint 2 and insert the new joint 2 until the arc surface of the inlet end of the joint 2 is fully in contact with the ball core 9, thereby ensuring the fixity of the installation position but enabling the ball core 9 to rotate freely.

Then push up the handle 11 to the vertical position, and now the ball core 9 rotates 90 degrees, and the hook-shaped locking body 7 on the ball core 9 matches and locks with the annular groove of the joint 2, thereby fixing and locking the joint 2. At this time, the ball valve is opened, and the fluid medium passes from bottom to top.

In this embodiment, the hook-shaped locking body 7 and the limit stopper 8 are formed by digging out an arc-shaped block from the surface of a conventional ball core.

This embodiment has the following advantages: simple structure, high safety for joint 2 replacement; no need for fixing by bolts, quick and time-saving replacement of joint 2; compact structure, few parts, easy maintenance and processing; joint 2 is provided with grooves, which can The ball core 9 is locked to make the valve more stable during operation; the limit stopper 8 can prevent the ball core 9 from excessive rotation; the sealing ring 10 can strengthen the stability and tightness of the connection between the joint 2 and the valve body 1; it can ensure the sealing at the same time Advantages such as high performance and high flow rate.

Claims (8)

1. A joint assembly with a valve, characterized in that it comprises a valve body (1), a ball core (9) and a joint (2), and the valve body (1) includes an outlet cavity and a ball core cavity communicated in sequence (3) and the inlet cavity (4), the ball core (9) is placed in the core cavity (3) and connected with the valve body (1) in rotation, the joint (2) is inserted into the outlet cavity and the valve The body (1) is connected, and the outlet cavity is matched with the joint (2); The joint (2) is provided with a joint cavity (5), the ball core (9) is provided with a through hole (6), and the joint cavity (5) communicates with the through hole (6) when the valve is opened; The joint (2) forms an arc surface matching the ball core (9) at the joint with the ball core (9), and the end of the joint (2) is provided with a groove. 2. A joint assembly with valve according to claim 1, characterized in that, the position of the ball core (9) close to the outlet end of the through hole (6) is a hook-shaped clamping body (7), and the hook-shaped clamping body (7) The body (7) is inserted into the groove at the end of the joint when the valve is opened, and fits with the groove at the end of the joint, and the position of the ball core (9) at the inlet end of the through hole (6) is a limit The baffle (8), the arc surface of the joint (2) blocks the limit baffle (8) when the valve is closed. 3. A joint assembly with a valve according to claim 1, characterized in that the outlet width of the joint cavity (5) is equal to the diameter of the through hole (6). 4. A joint assembly with a valve according to claim 1, characterized in that, the joint (2) is provided with a sealing ring (10) at the place inserted into the outlet cavity. 5. A joint assembly with a valve according to claim 4, characterized in that, the sealing ring (10) is connected to the joint (2) around. 6. A joint assembly with a valve according to claim 4, characterized in that the sealing ring (10) is a silicone sealing ring. 7. A joint assembly with a valve according to claim 1, characterized in that it further comprises a handle (11), the handle (11) is connected to the ball core (9), and the handle (11) rotates to drive the ball core (9) ) to turn. 8. A joint assembly with a valve according to claim 1, characterized in that, the upper end of the joint cavity (5) is cylindrical, and the lower end is conical.