CN203014299U - T-shaped connector - Google Patents

Abstract

The utility model provides a T-shaped connector, which is connected with a cable of a power supply line, comprising: a terminal head, a connector body and a matching part; the terminal head is fixed on the outer peripheral surface of the cable, and is provided with a first self-locking part; the connector The main body includes a T-shaped joint mated with the cable and a T-shaped connecting sleeve arranged on the outer peripheral surface of the T-shaped joint; the mating part includes a connecting sleeve fixedly connected with the T-shaped connecting sleeve and mated with the terminal head. The connecting shaft sleeve has a second self-locking part cooperating with the first self-locking part, and the first self-locking part and the second self-locking part have a locked position for mutual cooperation and an unlocked position for disengaging; in the locked position, the terminal The head and the connecting shaft sleeve are relatively fixedly arranged; in the unlocked position, the terminal head is movably arranged relative to the connecting shaft sleeve. By applying the T-shaped connector of the utility model, by setting the first self-locking part and the second self-locking part, the purpose of safe and reliable docking and separation of cables is realized.

Description

T-connector

technical field

The utility model relates to the field of electric power maintenance equipment, in particular to a T-shaped connector.

Background technique

Existing cable line implements branching, the method for connecting mainly is to adopt cable distribution box. By processing a series of cable ends in the high-voltage cable distribution box and connecting and separating the connecting accessories, functions such as branching and splicing of cable lines are realized. The connector devices used in the cable distribution box in the prior art are divided into two series of European type and American type. The American plug-in device adopts a parallel branch structure and is provided with an inner shielding layer, a main insulating layer, and an outer shielding layer; the European-style plug-in device adopts a series branch structure and is provided with an inner shielding layer and a main insulating layer.

Disadvantages of the existing technology: the cable distribution box is bulky and inconvenient to operate; the plugging force is large when the cables are connected and separated, and there is no automatic locking device; the European-style connectors are unshielded, and the outer surface is not allowed to be touched when working with electricity. In addition, the cable distribution box does not meet the requirements for bypass operation to establish a temporary power supply cable system.

Utility model content

The utility model aims to provide a T-shaped connector to achieve the purpose of safe and reliable connection and separation of cables.

In order to achieve the above purpose, the utility model provides a T-shaped connector, which is connected to the cable of the power supply line, including: a terminal head, fixed on the outer peripheral surface of the cable, and provided with a first self-locking part; a connector body, including The T-shaped connector for cable plugging and the T-shaped connecting bushing arranged on the outer peripheral surface of the T-shaped connector; the matching part includes the connecting bushing fixedly connected with the T-shaped connecting bushing and mated with the terminal head, and the connecting shaft The sleeve has a second self-locking part cooperating with the first self-locking part. The first self-locking part and the second self-locking part have a locked position for mutual cooperation and an unlocked position for disengagement. In the locked position, the terminal head and the second self-locking part The connecting shaft sleeve is relatively fixedly arranged, and in the unlocked position, the terminal head is movably arranged relative to the connecting shaft sleeve.

Further, the first self-locking part includes a groove arranged on the outer peripheral surface of the terminal head, and the second self-locking part includes a limiting ball arranged on the connecting sleeve and matched with the groove.

Further, the connecting sleeve is also provided with a radial through hole for accommodating the limit ball; the matching part also includes a control mechanism for controlling the switching between the first self-locking part and the second self-locking part between the unlocked position and the locked position, and the control mechanism It includes a locking and limiting bushing sleeved on the outside of the connecting bushing. The locking and limiting bushing includes a first inner hole that slides and fits with the outer peripheral surface of the connecting bushing. Matching limit slot.

Further, the outer circumference of the connecting shaft sleeve is also provided with a stepped portion; the control mechanism includes a locking pressure spring sleeved on the connecting shaft sleeve, the locking pressure spring is located between the stepped surface of the stepped portion and the radial through hole, and the locking pressure spring The first end abuts against the stepped surface; the locking limit shaft sleeve also includes a second inner hole, the locking pressure spring is located in the second inner hole, and the second end of the locking pressure spring abuts against the shaft end side wall of the second inner hole catch.

Further, the matching part also includes a first limiting part and a second limiting part, the first limiting part and the second limiting part are both arranged on the connecting shaft sleeve, and the first limiting part and the second limiting part Respectively limit the displacement of the two axial ends of the locking limit shaft sleeve.

Further, the first limiting part includes a limiting retaining ring arranged on the connecting shaft sleeve close to the axial end of the locking limiting sleeve, and the second limiting part includes a shaft ring arranged on the connecting sleeve near the locking limiting sleeve shaft. To the limit protrusion at the other end, the other axial end of the locking limit shaft sleeve is provided with an opening that cooperates with the limit protrusion. When the locking limit sleeve and the limit retaining ring abut, the first self-locking part The first self-locking part and the second self-locking part are in the locked position, and when the limiting protrusion fits with the opening, the first and second self-locking parts are in the unlocked position.

Further, the matching part also includes an inner limiting bushing and an inner pressure spring arranged inside the connecting bushing and abutting against the terminal head, one end of the inner pressure spring abuts against the end of the inner limiting bushing, and the inner pressure The other end of the spring abuts against the end face of the T-shaped connecting bushing. The inner limiting bushing includes an outer peripheral surface that slides with the inner hole of the connecting bushing. The outer peripheral surface of the inner limiting bushing is closed under the drive of the inner pressure spring Radial through holes or radial through holes exposed under the drive of the terminal head.

Further, the T-shaped joint includes a T-shaped electrical connecting rod and a polymer composite insulating joint coated on the outer surface of the T-shaped electrical connecting rod, and the T-shaped electrical connecting rod is arranged in cooperation with the cable.

Furthermore, the end of the T-shaped electrical connecting rod is provided with a mounting groove, and the inner surface of the mounting groove is provided with a contact piece correspondingly inserted into the cable.

Further, the T-shaped electrical connecting rod is made of low-resistance metal.

Further, there are three matching parts, which are respectively provided at the three ends of the T-shaped connecting sleeve of the connector body.

The T-shaped connector of the utility model is applied, and a terminal head with a first self-locking part and a mating part with a second self-locking part are set and fixed on the outer peripheral surface of the cable. When the cable is inserted into the T-shaped connector of the connector body When the mating part is connected, the first self-locking part and the second self-locking part are in the locked position to lock the cable; when the cable is pulled out of the mating part, the first self-locking part and the second self-locking part must be in the unlocked position , the cable can be pulled out, so as to achieve the purpose of safe and reliable docking and separation of cables.

Furthermore, the T-shaped connector of the utility model is used in conjunction with the power supply line cable, and by adjusting the number of T-shaped connectors and the length of the cable, it is possible to bridge the faulty line section, ensure that the user does not stop power supply, and quickly set up a temporary power supply cable system purpose, thereby improving the reliability of power supply.

Furthermore, the polymer composite insulating joint is provided, which can effectively shield the charged body and ensure safe operation.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 is a schematic diagram of an assembly structure of a connector body and a mating part of a T-shaped connector according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of the assembly structure of the terminal head and the cable according to the T-shaped connector in the embodiment of the present invention;

3 is a schematic structural view of a T-shaped joint of a T-shaped connector according to an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a T-shaped electrical connecting rod of a T-shaped connector according to an embodiment of the present invention.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

As shown in FIG. 1 and FIG. 2 , the utility model provides a T-shaped connector connected to a cable 30 of a power supply line, including: a terminal head 20 , a connector body and a mating part. The terminal head 20 is fixed on the outer peripheral surface of the cable 30 and is provided with a first self-locking part. The main body of the connector includes a T-shaped joint 11 mated with the cable 30 and a T-shaped connecting sleeve 19 disposed on the outer peripheral surface of the T-shaped joint 11 . The matching part includes a connecting bushing 12 which is fixedly connected with the T-shaped connecting bushing 19 and fitted with the terminal head 20. The connecting bushing 12 has a second self-locking part cooperating with the first self-locking part. Between the lock part and the second self-locking part, there is a locking position for mutual cooperation and an unlocking position for disengaging. In the locking position, the terminal head 20 is relatively fixedly arranged with the connecting sleeve 12. In the unlocking position, the terminal head 20 is relatively fixed to the connection shaft sleeve 12. The sleeve 12 is movably provided. Specifically, the first self-locking part includes a groove 21 provided on the terminal head 20 , and the second self-locking part includes a limiting ball 16 provided on the connecting sleeve 12 and matched with the groove 21 . It should be noted that there are three matching parts in this embodiment, which are respectively arranged at the three ends of the T-shaped connecting sleeve 19 of the connector body.

The terminal head 20 with the first self-locking part and the mating part with the second self-locking part are set and fixed on the outer peripheral surface of the cable 30. When the cable 30 is inserted into the mating part with the T-shaped joint 11 of the connector body, the limit ball 16 and the groove 21 snap fit and are in a locking position, so that the cable 30 can be locked. When the cable 30 is to be pulled out of the mating part, the limit ball 16 and the groove 21 must be manually placed in the unlocking position, so that the cable 30 can only be pulled out after the cable 30 is unlocked. By setting the first self-locking device and the second self-locking device, the purpose of safe and reliable docking and separation of the cable 30 and the T-shaped connector can be achieved.

The outer peripheral surface of the connecting shaft sleeve 12 is provided with a stepped portion with a stepped surface facing the insertion end of the terminal head 20 and a radial through hole for accommodating the limiting ball 16 . The matching part also includes a control mechanism for controlling switching between the first self-locking part and the second self-locking part between the unlocked position and the locked position. The control mechanism includes a locking pressure spring 14 sleeved on the connecting sleeve 12 and a locking limit sleeve 18 sleeved on the outer circumference of the connecting sleeve 12 and the locking pressure spring 14 . The locking pressure spring 14 is located between the stepped surface and the radial through hole, and the first end of the locking pressure spring 14 abuts against the stepped surface of the connecting sleeve 12 . The locking and limiting bushing 18 includes a first inner hole and a second inner hole. Wherein, the locking pressure spring 14 is located in the second inner hole, and the second end of the locking pressure spring 14 abuts against the side wall of the shaft end of the second inner hole, and the first inner hole is slidingly fitted with the outer peripheral surface of the connecting sleeve 12 and The hole wall of the first inner hole is provided with a limit groove which cooperates with the limit ball 16 . A locking limit sleeve 18 and a locking pressure spring 14 are provided, and by adjusting the position of the locking limit sleeve 18 relative to the connecting sleeve 12 , switching between the unlocked position and the locked position can be realized.

The matching part also includes a first limiting part and a second limiting part, the first limiting part and the second limiting part are both arranged on the connecting shaft sleeve 12, and the first limiting part and the second limiting part respectively limit The displacement of both axial ends of the locking limit shaft sleeve 18 is provided. When the locking position-limiting sleeve 18 abuts against one of the first position-limiting portion and the second position-limiting portion, the first self-locking portion and the second self-locking portion are in the locking position, and the locking position-limiting shaft sleeve 18 is in contact with the first position-limiting portion. When the other one of the limiting part and the second limiting part abuts, the first self-locking part and the second self-locking part are in the unlocked position. Specifically, the first limiting portion is a limiting retaining ring 171 disposed on the connecting sleeve 12 near the axial end of the locking limiting sleeve 18 , and the second limiting portion includes a ring 171 disposed on the connecting sleeve 12 near the locking limit. Position the position-limiting projection 172 at the other end of the shaft sleeve 18 in the axial direction. When the locking limit shaft sleeve 18 abuts against the limit retaining ring 171, the part of the inner wall of the first inner hole that is not provided with a limit groove is squeezed and fitted with the limit ball 16, so that the limit ball 16 moves along the connecting shaft sleeve 12. radial inward movement, the T-connector is in the locked position. When the locking limit bushing 18 abuts against the limit protrusion 172, the limit groove cooperates with the limit ball 16, and the limit ball 16 can move radially outward in the radial through hole, and the T-shaped connector is in the Unlock position. In order to accurately set the circumferential position of the locking and limiting sleeve 18 in the unlocked position, the other axial end of the locking and limiting sleeve 18 is provided with an opening that cooperates with the limiting protrusion 172 .

Further, the matching part also includes an inner limiting bushing 15 and an inner pressure spring 13 arranged inside the connecting bushing 12 and abutting against the terminal head 20 , and one end of the inner pressure spring 13 abuts against the inner limiting bushing 15 , the other end of the inner pressure spring 13 abuts against the end face of the T-shaped connecting bushing 19, the inner limiting bushing 15 includes an outer peripheral surface slidingly fitted with the inner hole of the connecting bushing 12, and the outer peripheral surface of the inner limiting bushing 15 The radial through hole is closed under the drive of the internal pressure spring 13 or the radial through hole is exposed under the drive of the terminal head 20 . Driven by the inner pressure spring 13 , the inner limit bushing 15 can apply a force away from the inner pressure spring 13 to the cable 30 in the unlocked position, so that the cable 30 and the mating part are out of the mating state.

As shown in FIG. 3 , the T-shaped connector 11 includes a T-shaped electrical connecting rod 111 and a T-shaped polymer composite insulation joint 112 covering the outer surface of the T-shaped electrical connecting rod 111 . The electrical connecting rod 111 is arranged in cooperation with the cable 30 . The polymer composite insulating joint 112 is provided, which can effectively shield the charged body of the cable 30 and ensure safe operation.

As shown in FIG. 4 , the end of the T-shaped electrical connecting rod 111 is provided with a mounting groove, and the inner surface of the mounting groove is provided with a contact piece 113 corresponding to the cable 30 . Preferably, the electrical connecting rod 111 in the embodiment of the present invention is made of low-resistance metal.

From the above description, it can be seen that the above-mentioned embodiments of the present invention have achieved the following technical effects: a terminal head with a first self-locking part fixed on the outer peripheral surface of the cable, and a mating part with a second self-locking part , when the cable is plugged into the T-shaped joint of the connector body, the first self-locking part and the second self-locking part are in the locked position to lock the cable; when the cable is to be pulled out of the mating part, the first Only when the self-locking part and the second self-locking part are in the unlocked position can the cable be pulled out, so as to achieve the purpose of safe and reliable docking and separation of cables.

Furthermore, the T-shaped connector of the utility model is used in conjunction with the power supply line cable, and by adjusting the number of T-shaped connectors and the length of the cable, it is possible to bridge the faulty line section, ensure that the user does not stop power supply, and quickly set up a temporary power supply cable system purpose, thereby improving the reliability of power supply.

Furthermore, the polymer composite insulating joint is provided, which can effectively shield the charged body and ensure safe operation.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (11)

1. A T-shaped connector connected to a cable (30) of a power supply line, characterized in that it comprises: a terminal head (20), fixed on the outer peripheral surface of the cable (30), and provided with a first self-locking part; A connector body, including a T-shaped joint (11) mated with the cable (30) and a T-shaped connecting sleeve (19) arranged on the outer peripheral surface of the T-shaped joint (11); The matching part includes a connecting bushing (12) fixedly connected with the T-shaped connecting bushing (19) and mated with the terminal head (20). The connecting bushing (12) has a The first self-locking part cooperates with the second self-locking part. The first self-locking part and the second self-locking part have a locked position for mutual cooperation and an unlocked position for disengagement. In the locked position, The terminal head (20) is fixedly arranged relative to the connecting shaft sleeve (12), and in the unlocked position, the terminal head (20) is movably arranged relative to the connecting shaft sleeve (12). 2. The T-shaped connector according to claim 1, characterized in that, the first self-locking part includes a groove (21) provided on the outer peripheral surface of the terminal head (20), and the second self-locking part The lock part includes a limiting ball (16) arranged on the connecting shaft sleeve (12) and matched with the groove (21). 3. The T-shaped connector according to claim 2, characterized in that, The connecting bushing (12) is also provided with a radial through hole for accommodating the limiting ball (16); The matching part also includes a control mechanism for controlling the switching between the first self-locking part and the second self-locking part between the unlocked position and the locked position, and the control mechanism includes a A locking and limiting bushing (18) outside the bushing (12), the locking and limiting bushing (18) includes a first inner hole slidingly fitted with the outer peripheral surface of the connecting bushing (12), the first A limit groove cooperating with the limit ball (16) is arranged on the hole wall of the inner hole. 4. The T-shaped connector according to claim 3, characterized in that, The outer circumference of the connecting sleeve (12) is also provided with a stepped portion; The control mechanism includes a locking pressure spring (14) sleeved on the connecting sleeve (12), and the locking pressure spring (14) is located between the stepped surface of the stepped portion and the radial through hole And the first end of the locking pressure spring (14) abuts against the stepped surface; The locking limit bushing (18) also includes a second inner hole, the locking pressure spring (14) is located in the second inner hole, and the second end of the locking pressure spring (14) is connected to the second inner hole. The side wall of the shaft end of the second inner hole abuts. 5. The T-shaped connector according to claim 4, wherein the mating portion further comprises a first limiting portion and a second limiting portion, and the first limiting portion and the second limiting portion Both parts are arranged on the connecting bushing (12), and the first limiting part and the second limiting part respectively limit the displacement of the two ends of the locking limiting bushing (18) in the axial direction. 6. The T-shaped connector according to claim 5, characterized in that, the first limiting portion includes a shaft close to the locking limiting sleeve (18) arranged on the connecting sleeve (12) To one end of the limit ring (171), the second limit part includes a limit protrusion arranged on the connecting sleeve (12) close to the other axial end of the locking limit sleeve (18) (172), the other axial end of the locking limit bushing (18) is provided with an opening to cooperate with the limit protrusion (172), when the locking limit bushing (18) and the limit When the retaining ring (171) abuts, the first self-locking part and the second self-locking part are in the locking position; when the limiting protrusion (172) fits with the opening, the The first self-locking part and the second self-locking part are in the unlocked position. 7. The T-shaped connector according to any one of claims 3 to 6, characterized in that, the matching part further includes a terminal head (20) arranged inside the connecting sleeve (12) The inner limit bushing (15) and the inner pressure spring (13) arranged in abutment contact, one end of the inner pressure spring (13) abuts against the end of the inner limit bushing (15), and the inner The other end of the pressure spring (13) abuts against the end face of the T-shaped connecting bushing (19), and the inner limiting bushing (15) includes a sliding fit with the inner hole of the connecting bushing (12). Outer peripheral surface, the outer peripheral surface of the inner limiting bushing (15) is driven by the inner pressure spring (13) to close the radial through hole or exposed by the terminal head (20) The radial through hole. 8. The T-shaped connector according to any one of claims 1 to 6, characterized in that, the T-shaped joint (11) includes a T-shaped electrical connecting rod (111) and a A polymer composite insulating joint (112) on the outer surface of the connecting rod (111), the T-shaped electrical connecting rod (111) is arranged in cooperation with the cable (30). 9. The T-shaped connector according to claim 8, characterized in that, the end of the T-shaped electrical connecting rod (111) is provided with a mounting groove, and the inner surface of the mounting groove is provided with the cable (30) Corresponding to the plugged contact piece (113). 10. The T-shaped connector according to claim 9, characterized in that, the T-shaped electrical connecting rod (111) is made of low-resistance metal. 11. The T-shaped connector according to any one of claims 1 to 6, characterized in that there are three matching parts, which are respectively arranged on the T-shaped connecting bushes (19) of the connector body. three ends.

Images