CN204741258U - Power cable T type connecting terminal component - Google Patents

Abstract

The utility model discloses a T-shaped connecting terminal component of a power cable, which comprises a T-shaped connecting terminal body, which is an integral part integrating an internal connecting conductor and an external hard insulating sleeve, and the connecting conductor is insulated and sealed in the hard insulating In the sleeve, the connecting ends of the connecting conductors all adopt threaded connection structure. The connecting terminal body is equipped with a head, a cover, a rubber pad and a stress tube. The connecting terminal body is integrated with the cable through the threaded lug, stress tube, rubber pad, hard insulating cover and cable. The cable core is in an insulating and closed state. The connection between the wall bushing and the live connection member of the electrical equipment only needs to rotate the butt joint. Before the connecting terminal body is connected, the connecting conductor is insulated and sealed, and the connecting point of the connecting conductor is in the arc extinguishing chamber of the hard insulating sleeve. The process is simple and flexible.

Description

Power cable T-type connection terminal components

technical field

The utility model relates to a high-voltage cable connection terminal, in particular to a T-shaped connection terminal component of a power cable.

Background technique

In the past, the domestic cable connection terminals were all exposed, easy to discharge, short circuit, electric shock, and many potential safety hazards. The cable connection components of the European-style cable branch box are equipped with insulating jackets to prevent discharge, short circuit, and electric shock. However, the metal conductors in the connection terminals The external insulator is a separate piece, so when the connecting terminal is connected to the wall bushing or the live connection member of the electrical equipment, the connection between the internal conductor and the external insulator needs to be carried out one by one, the process is cumbersome, the operation flexibility is not strong, and it takes a long time; And the operation process cannot be carried out with electricity, which affects the reliability of power supply, has a great impact on production and life, and causes economic losses.

Utility model content

The purpose of the utility model is to provide a T-shaped connecting terminal component of a power cable which is easy to operate and can be connected with electricity.

The utility model discloses a T-shaped connecting terminal component of a power cable, which comprises a T-shaped connecting terminal body. The connecting terminal body is an integral part integrating an internal connecting conductor and an external hard insulating sleeve. The connecting conductor is insulated and sealed in In the rigid insulating sleeve, the connecting ends of the connecting conductors are all threaded connection structures, the shape of the connecting conductors is T-shaped, and the three connecting ends have an internal threaded interface and two external threaded joints, and the two connecting ends of the head are Externally threaded fittings.

The shape of the hard insulating sleeve is T-shaped, and there is a T-shaped hole in it. The connecting conductor is embedded in the T-shaped hole. The lengths of the hard insulating sleeve in three directions are greater than the corresponding length of the connecting conductor. The two ends of the axial direction form the arc extinguishing chamber I and the arc extinguishing chamber II respectively, and the lower part in the other direction forms the cable connection chamber, which is equipped with a stress tube. There is a hard insulating cover connected by external thread.

The inner space of the arc extinguishing chamber I of the hard insulating sleeve is equal to the inner space of the arc extinguishing chamber II.

The two ends of the coaxial line of the connecting terminal body are equipped with a spiral-shaped head with an integrated inner conductor and an outer hard insulator. The inner conductor of the spiral-shaped head is a metal spiral with a positioning ring, and the hard insulator is embedded The part where the metal coil is installed protrudes outwards; the coil-shaped head is inserted into the arc extinguishing chamber I of the hard insulating sleeve with a protruding section, and is threadedly connected with the screw section connecting the conductor.

There is a stepped hole in the axial center of the hard insulating cover, and the large-diameter end of the stepped hole is an internal threaded hole.

When the hard insulating cover and the screw-shaped cover are connected to the connecting terminal body, rubber pads are provided.

The cable is first crimped with the threaded head lug into one body, and the threaded head lug and the connecting terminal body of the utility model are integrally connected by thread. When in use, the sealing head is removed and connected to the wall bushing or the live connection member of the electrical equipment through the butt joint. When the butt joint is connected to the wall bushing or the live connection member of the electrical equipment and the connection terminal body, because the connection conductor of the connection terminal body is completely insulated and enclosed in a hard insulating sleeve, the connection of the connection conductor is in the arc extinguishing chamber, when the staff operates Only the insulating material is in contact, so that the connecting terminal body can realize the live connection operation, thereby reducing the scope of power failure and facilitating safe power supply. The operation is simple, only need to rotate the butt joint when installing and removing.

In order to ensure the cleanness and dryness of the connecting terminal body and the integrity of its thread, the connection end of the connecting terminal body is first sealed with a head; the setting of the rubber pad can prevent loosening between adjacent connecting parts and has the effect of waterproofing and moisture-proofing.

Description of drawings

Fig. 1 is a schematic diagram of an exploded structure of an embodiment of the present invention.

Detailed ways

As shown in Figure 1, this embodiment discloses a T-shaped connection terminal component for power cables, which includes a T-shaped connection terminal body, and the connection terminal body is an integrated whole with an internal connection conductor 1 and an external hard insulating sleeve 2 The connecting conductor 1 is insulated and sealed in the hard insulating sheath 2.

The shape of the connecting conductor 1 is T-shaped, and has an internal threaded interface and two external threaded joints, wherein one of the two ends of the coaxial line is an external threaded joint, and the other end is an internal threaded interface. The shape of the hard insulating sleeve 2 is T-shaped, and there is a T-shaped hole in it. The connecting conductor 1 is embedded in the T-shaped hole. The length of the hard insulating sleeve 2 is greater than the length of the connecting conductor 1. The arc extinguishing chamber I21 and the arc extinguishing chamber II22 are respectively formed. The inner space of the arc extinguishing chamber I is larger than the inner space of the arc extinguishing chamber II, and the lower part in the other direction forms a cable connection chamber 23, which is equipped with a stress tube 3. The outer wall of the cable connection chamber 23 has a ground lead connection hole 24, and the end of the outer wall of the cable connection chamber 23 is connected with a hard insulating cover 4 through an external thread.

The two ends of the coaxial line of the connecting terminal body are respectively equipped with a spiral-shaped head 5 integrating an inner conductor and an outer hard insulator, and the inner conductor is embedded in the axial center of the outer insulator. The inner conductor of the helicoidal head 5 is a metal helix with a positioning ring, and the part of the hard insulator embedded with the metal helix protrudes outward. The spiral tube type head 5 is inserted into the arc extinguishing chamber 1 of the hard insulating sheath 2 with a protruding section and is threadedly connected with the screw section of the connecting conductor. There is a stepped hole in the axial center of the hard insulating cover 4, and the large diameter end of the stepped hole is an internally threaded hole.

When the hard insulating cover 4 and the screw-type cover 5 are connected with the connecting terminal body, rubber pads 6 are provided to protect the thread and keep the connecting conductor clean and dry.

When this connection terminal is in use, first remove the hard insulating cover, put the hard insulating cover on the cable end, then put the rubber pad and stress tube on the cable end, connect the cable core of the cable end with the The threaded lugs are crimped as one; then insert the threaded lugs into the cable connection chamber, clamp the hexagonal section of the outer wall of the hard insulating sleeve with an insulating wrench to rotate the connecting terminal body to securely fix the threaded lugs, and finally The stress tube is pushed into the cable connection chamber, and the hard insulating cover is tightened on the lower end of the hard insulating sleeve, so far the cable and the connecting terminal body are connected into one body. The head connection end of the connection terminal body can be connected with the wall bushing and the live connection member of the electrical equipment by matching with a suitable butt joint.

In order to ensure the cleanness and dryness of the connecting terminal body and the integrity of its thread, the connection end of the connecting terminal body is first sealed with a head; the setting of the rubber pad can prevent loosening between adjacent connecting parts and has the effect of waterproofing and moisture-proofing.

Claims (6)

1. A power cable T-shaped connection terminal component, characterized in that: it includes a T-shaped connection terminal body, the connection terminal body is an integral part integrating an internal connection conductor and an external hard insulating sleeve, and the connection conductor is insulated and sealed In the hard insulating sleeve, the connecting ends of the connecting conductors are all threaded. The shape of the connecting conductors is T-shaped. The three connecting ends have an internal threaded interface and two external threaded joints. For externally threaded joints. 2. The T-shaped connection terminal member for power cables according to claim 1, characterized in that: the shape of the hard insulating sleeve is T-shaped, and there is a T-shaped hole in it, and the connecting conductor is embedded in the T-shaped hole Among them, the lengths of the three directions of the hard insulating sleeve are greater than the corresponding lengths of the connecting conductors, and the two ends of the coaxial direction form the arc extinguishing chamber I and the arc extinguishing chamber II respectively, and the lower part of the other direction forms the cable connection chamber. Equipped with a stress tube, the outer wall of the cable connection room has a grounding lead connection hole, and the end of the cable connection room wall is connected with a hard insulating cover through an external thread. 3. The T-type connection terminal member for power cables according to claim 2, characterized in that: the inner space of the arc extinguishing chamber I of the hard insulating sleeve is equal to the inner space of the arc extinguishing chamber II. 4. The power cable T-shaped connection terminal component according to claim 3, characterized in that: the two ends of the coaxial line of the connection terminal body are equipped with a spiral-shaped head that integrates an inner conductor and an outer hard insulator, The internal conductor of the spiral tube head is a metal coil with a positioning ring, and the part of the hard insulator embedded in the metal coil protrudes outward; The chamber I is threadedly connected with the screw section of the connecting conductor. 5. The T-shaped connection terminal member for power cables according to claim 2, characterized in that: there is a stepped hole in the axial center of the hard insulating cover, and the large-diameter end of the stepped hole is an internal threaded hole. 6 . The T-shaped connection terminal member for power cables according to claim 4 , wherein the hard insulating cover and the spiral-shaped head are provided with rubber pads when connected to the connection terminal body. 7 .