CN114336141A - Cable joint insulation protection device - Google Patents

Abstract

The invention relates to an insulation protection device for a cable joint. This cable joint insulation protection device includes: an insulating case and a fixing member; a first accommodating cavity is formed in the insulating box, the first accommodating cavity is provided with a first opening communicated with the outside, the first accommodating cavity is used for accommodating a cable connector, and the cable connector can extend into the first accommodating cavity through the first opening; the fixing piece is movably connected with the insulating box, so that the fixing piece has a first state and a second state, the fixing piece and the insulating cable are arranged at intervals when the fixing piece is in the first state, and the fixing piece is pressed against the insulating cable when the fixing piece is in the second state and used for preventing the insulating cable from being drawn out of the insulating box. This cable joint insulation protection device effectively prevents that cable joint from contacting the staff and causing the electric shock, or contact other equipment and lead to the short circuit, and simple structure, convenient operation has shortened cable joint insulating long operation of keeping apart, has effectively improved cable joint's maintenance efficiency.

Description

Cable joint insulation protection device

technical field

The present invention relates to the technical field of electrical equipment, and in particular, to a cable joint insulation protection device.

Background technique

Insulated cables refer to cables in which conductive parts are wrapped with insulating materials such as rubber, which are usually used in power transmission, signal transmission, etc. When installing the insulated cable, the staff needs to strip off part of the insulating wrapping layer of the connecting end of the insulated cable, expose the conductive part of the insulated cable as the cable connector, and then connect the cable connector to the terminal block of the receiving device, so as to realize Power transfer and signal transmission between insulated cables and receiving equipment. During maintenance, the staff needs to remove the connection between the cable connector and the terminal block of the receiving device.

During the live maintenance process, after the staff removes the insulated cables, the cable connectors are exposed to the outside world. In order to prevent the cable connector from contacting the staff and causing electric shock, or contacting other equipment and causing a short circuit, the cable connector needs to be insulated and isolated.

Generally, insulating tape is used to wrap the cable connector layer by layer, until the insulating tape completely wraps the cable connector, the cable connector can be completely insulated and isolated. After the overhaul, it is necessary to remove all the insulating tapes wrapped on the cable connectors layer by layer. In addition, when winding or removing the insulating tape, the staff needs to fix the insulating part of the insulating cable with one hand, and wrap and compress the insulating tape with the other hand. Risk of electric shock. Therefore, the use and operation of the insulation isolation method is complicated, the installation time is long, the operation efficiency is low, and the safety risk is high.

SUMMARY OF THE INVENTION

Based on this, it is necessary to provide a cable joint insulation protection device for the problem of low working efficiency of cable joint isolation.

A cable joint insulation protection device, comprising:

An insulating box, the inside of the insulating box is provided with a first accommodating cavity, the first accommodating cavity has a first opening that communicates with the outside world, the first accommodating cavity is used for accommodating cable joints, and the cable joints can pass through the first opening extends into the first accommodating cavity;

a fixing piece, the fixing piece is movably connected with respect to the insulating box, so that the fixing piece has a first state and a second state, when the fixing piece is in the first state, the fixing piece and the insulating cable are arranged at intervals , when the fixing member is in the second state, the fixing member is pressed against the insulating cable, so as to prevent the insulating cable from being pulled out of the insulating box.

The insulated cable includes an insulating part and a cable joint. The cable joint is live. In order to insulate and protect the cable joint, the above-mentioned cable joint insulation protection device, when in use, place the cable joint in the first place of the insulation box. In the accommodating cavity, the fixing member is pressed to fix the insulating cable and the insulating box, so as to achieve the insulating protection for the cable joint. In the cable connector insulation protection device, due to the movable arrangement of the fixing member and the insulating box, the staff only needs to operate two steps: putting the cable connector into the first opening and pressing the fixing member, the live cable connector can be connected to the cable connector. The operator and other equipment are isolated to prevent the cable joint from contacting the staff and causing electric shock, or contacting other equipment and causing short circuit. The structure is simple and the operation is convenient, which shortens the operation time of the insulation isolation of the cable joint, and effectively improves the cable joint. maintenance efficiency.

In one embodiment, a second accommodating cavity is provided inside the insulating box, the first accommodating cavity is communicated with the second accommodating cavity, and an end of the second accommodating cavity is away from the first accommodating cavity There is a second opening that communicates with the outside world.

In one embodiment, the first opening and the second opening are respectively located on two opposite end faces of the insulating box, and the first accommodating cavity and the second accommodating cavity are coaxially arranged.

In one embodiment, a conductive rod and an insulating cap are further included, a first end of the conductive rod extends into the second accommodating cavity through the second opening, and the conductive rod can be electrically connected to the cable connector The second end of the conductive rod protrudes from the second opening, and the insulating cap seals the part of the conductive rod protruding from the second opening inside the insulating cap.

In one embodiment, a conductive spring is provided on the first end of the conductive rod, and the conductive rod can be electrically connected to the cable connector through the conductive spring.

In one of the embodiments, the first end of the conductive rod is detachably connected to the inner wall of the second accommodating cavity through screw fitting;

And/or, an annular boss is provided on the outer peripheral surface of the conductive rod, the annular boss is located outside the insulating box, and the annular boss is located between the insulating cap and the insulating box ;

And/or, a gasket is sleeved on the conductive rod, the gasket is an insulating gasket, the gasket is located outside the insulating box, and the gasket is located between the insulating cap and the insulating box .

In one embodiment, the part of the conductive rod extending out of the second accommodating cavity is the conductive rod output part, the conductive rod output part is provided with a conductive interface, and the insulating cap is provided with a through hole, so The conductive rod output part extends into the through hole, the conductive interface and the opening of the through hole face the same direction, and the signal connector can extend into the conductive interface through the through hole and communicate with the conductive rod. electrical connection;

Or, a conductive rod connecting hole is provided in the insulating cap, the second end of the conductive rod and the inner wall of the conductive rod connecting hole are detachably connected through screw fitting, a signal interface is provided on the insulating cap, and the The signal interface is communicated with the connection hole of the conductive rod, and the signal connector can extend into the signal interface to be electrically connected with the conductive rod.

In one embodiment, the insulating box is provided with a fixing member connecting hole, the fixing member connecting hole is communicated with the first accommodating cavity, and the first end of the fixing member extends into the fixing member connecting hole , the second end of the fixing piece protrudes out of the fixing piece connecting hole, and pressing the second end of the fixing piece can make the fixing piece switch from the first state to the second state, and the connecting hole of the fixing piece The opening is located on the first end surface of the insulating box, the first opening is located on the second end surface of the insulating box, and the first end surface and the second end surface are perpendicular.

In one embodiment, a first arc-shaped groove is formed on the end face of the fixing member facing the insulated cable, and a second arc-shaped groove is formed on the inner wall of the first accommodating cavity. Two arc-shaped grooves are located on the side of the insulated cable away from the first arc-shaped groove. When the fixing member is in the second state, the groove wall of the first arc-shaped groove is in contact with the insulated wire. The outer peripheral surface of the cable is in contact with each other, and the groove wall of the second arc-shaped groove is in contact with the outer peripheral surface of the insulated cable;

And/or, a rubber pad is provided on the end face of the fixing member facing the insulated cable;

Or, the fixing member penetrates through the insulating box along the radial direction of the insulated cable, a third accommodating cavity is arranged in the fixing member, and the third accommodating cavity penetrates through the insulating box along the axial direction of the insulating cable. The fixing piece, when the fixing piece is in the first state, the first accommodating cavity and the third accommodating cavity are in coaxial communication, and when the fixing piece is in the second state, the insulating cable is located in the first accommodating cavity an accommodating cavity and the third accommodating cavity, and the inner wall of the third accommodating cavity abuts on the insulating cable; the fixing member also has a third state, when the fixing member is in the third state When the first accommodating cavity and the third accommodating cavity are dislocated, pressing the fixing member can make the fixing member switch from the third state to the first state.

In one embodiment, a first magnet and a second magnet are respectively provided on two opposite end faces of the insulating box, and the first magnet and the second magnet have opposite magnetic properties;

And/or, the cable joint insulation protection device further comprises an elastic sheet, one end of the elastic sheet is connected with the insulating box, the other end of the elastic sheet is connected with the fixing member, and the elastic sheet provides the fixing member with resistance. The force that presses the insulated cable.

Description of drawings

FIG. 1 is a schematic structural diagram of a cable joint insulation protection device according to an embodiment;

2 is a schematic structural diagram of a plurality of cable joint insulation protection devices according to an embodiment;

3 is a top view of an insulating protection device for a cable joint according to an embodiment;

4 is a cross-sectional view of the cable joint insulation protection device A-A when the fixing member of the embodiment of FIG. 3 is in a first state;

5 is a cross-sectional view of the cable joint insulation protection device A-A when the fixing member of the embodiment of FIG. 3 is in a second state;

6 is a cross-sectional view of the cable joint insulation protection device A-A when the fixing member of the embodiment of FIG. 3 is in a third state;

7 is a schematic structural diagram of a cable joint insulation protection device and a signal joint according to another embodiment;

FIG. 8 is a top view of a cable joint insulation protection device and a signal joint according to another embodiment;

FIG. 9 is a cross-sectional view of another embodiment of the cable joint insulation protection device and the signal joint B-B.

Reference number: 100, cable joint insulation protection device; 10, insulating box; 11, first accommodating cavity; 12, second arc groove; 20, fixing part; 21, rubber pad; 22, third accommodating cavity ;30, insulated cable; 31, insulating part; 32, cable connector; 40, signal connector; 50, conductive rod; 51, conductive spring; 52, ring boss; 53, gasket; 54, conductive interface; 60, insulating cap; 61, connecting hole for conductive rod; 62, signal interface; 70, first magnet; 80, second magnet; 90, shrapnel; 91, screw.

Detailed ways

In order to make the above objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

The cable joint insulation protection device 100 provided by some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1 , FIG. 2 , FIG. 3 , FIG. 4 , FIG. 5 , FIG. 6 and FIG. 9 , in one embodiment, a cable joint insulation protection device 100 is provided, including: an insulation box 10 and a fixing member 20;

As shown in FIG. 1 , FIG. 2 , FIG. 4 , FIG. 5 , FIG. 6 , FIG. 7 , FIG. 8 and FIG. 9 , the insulating box 10 is provided with a first accommodating cavity 11 inside, and the first accommodating cavity 11 has a communication with the outside world. The first opening, the first accommodating cavity 11 is used to accommodate the cable joint 32, and the cable joint 32 can extend into the first accommodating cavity 11 through the first opening;

As shown in FIGS. 1 to 9 , the fixing member 20 is movably connected relative to the insulating box 10 , so that the fixing member 20 has a first state and a second state. When the fixing member 20 is in the first state, the fixing member 20 is connected to the insulating wire. The cables 30 are arranged at intervals, and when the fixing member 20 is in the second state, the fixing member 20 presses against the insulating cable 30 , so as to prevent the insulating cable 30 from being pulled out of the insulating box 10 .

The insulated cable 30 includes an insulating portion 31 and a cable joint 32. The cable joint 32 is charged. In order to insulate and protect the cable joint 32, the cable joint 32 can be placed in the first accommodating cavity 11 of the insulating box 10. , press the fixing member 20 to fix the insulating cable 30 and the insulating box 10 to achieve the insulating protection for the cable joint 32 . In the cable joint insulation protection device 100, since the fixing member 20 and the insulating box 10 are movably arranged, the staff only needs to perform two steps: put the cable joint 32 into the first opening and press the fixing member 20, and the electrified The cable joint 32 is isolated from the operator and other equipment, so as to prevent the cable joint 32 from contacting the staff and causing electric shock, or contacting other equipment to cause short circuit, the structure is simple, the operation is convenient, and the operation of the insulation isolation of the cable joint 32 is shortened. The length of time can effectively improve the maintenance efficiency of the cable joint 32 .

More specifically, in an embodiment, the cross section of the first accommodating cavity 11 perpendicular to the axial direction of the insulated cable 30 is square. The first accommodating cavity 11 is capable of accommodating U-shaped cable joints, round cable joints and square cable joints, which broadens the adaptability range of the cable joint insulation protection device 100 to the shape of the cable joints 32 .

Specifically, as shown in FIG. 4 , FIG. 5 , FIG. 6 and FIG. 9 , in one embodiment, the insulating box 10 is provided with a second accommodating cavity inside, the first accommodating cavity 11 communicates with the second accommodating cavity, and the second accommodating cavity is in communication with the second accommodating cavity. One end of the cavity away from the first accommodating cavity 11 has a second opening that communicates with the outside world. When the cable joint 32 is placed in the first accommodating cavity 11 , the cable joint 32 is completely insulated from the outside world. At this time, if some maintenance work needs to be temporarily electrically connected to the cable connector 32, the second accommodating cavity can be inserted into the signal connector 40 to directly connect with the cable connector 32, or the intermediate conductive element can be inserted to indirectly connect to the cable connector 32. The connector 32 is electrically connected.

More specifically, as shown in FIG. 4 , FIG. 5 , FIG. 6 and FIG. 9 , in one embodiment, the signal connector 40 can extend into the second accommodating cavity through the second opening and be electrically connected with the cable connector 32 . The second accommodating cavity is used for accommodating the signal connector 40 . The signal connector 40 used for testing is directly extended into the second accommodating cavity through the second opening, so that the signal connector 40 is abutted with the cable connector 32 to transmit signals, and the maintenance work is completed. Therefore, the cable joint insulation protection device 100 enables the cable joint 32 to perform signal transmission with the outside while being insulated and protected, which saves the operation time for repeated dismantling and installation of the cable joint insulation protection device 100 during maintenance, and greatly improves the maintenance efficiency.

Specifically, as shown in FIG. 1 , FIG. 2 , FIG. 3 and FIG. 4 , in one embodiment, the first opening and the second opening are respectively located on two opposite end faces of the insulating box 10 , the first accommodating cavity 11 and the first The two accommodating chambers are coaxially arranged.

Optionally, in an embodiment, the first opening and the second opening are respectively located on two mutually perpendicular end faces of the insulating box 10 , and the axis of the first accommodating cavity 11 and the axis of the second accommodating cavity are perpendicular.

Specifically, as shown in FIGS. 1 to 9 , in an embodiment, a conductive rod 50 and an insulating cap 60 are further included. The first end of the conductive rod 50 extends into the second accommodating cavity through the second opening, and the conductive rod 50 can Electrically connected to the cable connector 32 , the second end of the conductive rod 50 protrudes from the second opening, and the insulating cap 60 seals the portion of the conductive rod 50 protruding from the second opening inside the insulating cap 60 . The conductive rod 50 is used to draw out the transmission signal of the cable joint 32 , and the insulating cap 60 is used to insulate and protect the conductive rod 50 . The cable joint insulation protection device 100 is first electrically connected to the cable joint 32 through the conductive rod 50 , and then the signal joint 40 is connected to the conductive rod 50 to complete signal output, which ensures the reliability of the signal transmission of the cable joint 32 . And when the cable connector 32 needs to transmit signals to the outside, the insulating cap 60 can be removed, and the conductive rod 50 can be exposed to connect with the signal connector 40 to complete the signal transmission of the cable connector 32, which is simple to operate and easy to use.

More specifically, as shown in FIG. 9 , in one embodiment, the cable joint 32 extends into the first accommodating cavity 11 and abuts against the end surface or the outer peripheral surface of the conductive rod 50 . The reliability of the electrical connection between the cable joint 32 and the conductive rod 50 is ensured, and the stability of the signal transmission of the cable joint 32 is improved.

Specifically, as shown in FIG. 4 , FIG. 5 , and FIG. 6 , in one embodiment, a conductive spring 51 is provided on the first end of the conductive rod 50 , and the conductive rod 50 can be electrically connected to the cable connector 32 through the conductive spring 51 . sexual connection. The cable connector 32 is in contact with one end of the conductive spring 51, or the cable connector 32 extends into the conductive spring 51 and abuts the inner wall of the conductive spring 51, and is then connected to the conductive rod 50 through the conductive spring 51 to complete the connection of the cable connector 32. The signal output operation improves the stability of the signal transmission of the cable joint 32 . After the conductive spring 51 is provided, the cable joint 32 does not need to be in contact with the conductive rod 50 to achieve electrical connection. Regardless of the length of the cable joint 32, the cable joint 32 can establish an effective connection with the conductive rod 50 through the conductive spring 51. The electrical connection improves the applicable range of the cable joint insulation protection device 100 to the length of the cable joint 32 .

Specifically, as shown in FIG. 4 , FIG. 5 , FIG. 6 and FIG. 9 , in one embodiment, the first end of the conductive rod 50 is detachably connected to the inner wall of the second accommodating cavity through screw fitting. The conductive rod 50 is connected to the insulating box 10 through screw fitting, which ensures the stability of the connection position of the conductive rod 50 and the insulating box 10, prevents the conductive rod 50 from moving in the second accommodating cavity and affects the connection between the conductive rod 50 and the cable joint 32, The stability of the signal transmission of the cable joint 32 is improved.

Specifically, as shown in FIG. 1 , FIG. 2 , FIG. 3 , FIG. 4 , FIG. 5 , FIG. 6 , FIG. 7 , FIG. 8 and FIG. 9 , in one embodiment, the outer peripheral surface of the conductive rod 50 is provided with a circular ring The boss 52 and the annular boss 52 are located outside the insulating box 10 , and the annular boss 52 is located between the insulating cap 60 and the insulating box 10 . The annular boss 52 is pressed against the end surface of the insulating box 10 to prevent the end of the conductive rod 50 extending out of the second opening from falling into the second accommodating cavity, affecting the signal transmission between the conductive rod 50 and the signal connector 40, and ensuring the cable connector 32 Reliability of signal transmission.

More specifically, as shown in FIGS. 1 to 9 , in one embodiment, one end surface of the annular boss 52 abuts against the insulating box 10 , and the other end surface of the annular boss 52 abuts against the insulating cap 60 .

Specifically, as shown in FIGS. 1 to 9 , in one embodiment, a gasket 53 is sleeved on the conductive rod 50 , the gasket 53 is an insulating gasket 53 , the gasket 53 is located outside the insulating box 10 , and the gasket 53 is located in the Between the insulating cap 60 and the insulating box 10 . The gasket 53 is pressed against the end face of the insulating box 10 to prevent the end of the conductive rod 50 extending out of the second opening from falling into the second accommodating cavity, affecting the signal transmission between the conductive rod 50 and the signal connector 40, and ensuring the signal transmission of the cable connector 32 reliability.

More specifically, as shown in FIGS. 1 to 9 , in one embodiment, one end surface of the gasket 53 is in contact with the insulating box 10 , and the other end surface of the gasket 53 is in contact with the insulating cap 60 .

Specifically, as shown in FIGS. 1 to 9 , in one embodiment, a gasket 53 is sleeved on the conductive rod 50 , the gasket 53 is located outside the insulating box 10 , and an annular boss is provided on the outer peripheral surface of the conductive rod 50 52. The annular boss 52 is located outside the insulating box 10, the gasket 53 is located between the insulating box 10 and the annular boss 52, and the annular boss 52 is located between the gasket 53 and the insulating cap 60.

More specifically, as shown in FIGS. 1 to 9 , in one embodiment, one end surface of the gasket 53 is in contact with the insulating box 10 , and the other end surface of the gasket 53 is in contact with one end surface of the annular boss 52 . , the other end surface of the annular boss 52 is in contact with the insulating cap 60 .

Specifically, as shown in FIG. 4 , FIG. 5 and FIG. 6 , in one embodiment, the portion of the conductive rod 50 extending out of the second accommodating cavity is the output portion of the conductive rod 50 , and the output portion of the conductive rod 50 is provided with a conductive interface 54 , the insulating cap 60 is provided with a through hole, the output part of the conductive rod 50 extends into the through hole, the conductive interface 54 is in the same direction as the opening of the through hole, and the signal connector 40 can extend into the conductive interface 54 through the through hole and communicate with the conductive rod 50 Electrical connection. The signal interface 62 can be inserted into the conductive interface 54 through the through hole, and abuts with the inner wall of the conductive interface 54 to realize electrical connection, so as to ensure the reliability of the signal transmission of the cable connector 32 .

Optionally, as shown in FIG. 7 , FIG. 8 and FIG. 9 , in one embodiment, a conductive rod connecting hole 61 is provided in the insulating cap 60 , and the second end of the conductive rod 50 passes through the inner wall of the conductive rod connecting hole 61 . Threaded fit removable connection. The connection between the insulating cap 60 and the conducting rod 50 is made more reliable through the screw fit, and the insulating cap 60 will not fall easily, which ensures that the insulating protection of the insulating cap 60 to the conducting rod 50 is more reliable.

Further specifically, as shown in FIG. 7 , FIG. 8 and FIG. 9 , in one embodiment, the insulating cap 60 is provided with a signal interface 62 , the signal interface 62 communicates with the conductive rod connecting hole 61 , and the signal connector 40 can extend into the signal interface 61 . The interface 62 is electrically connected to the conductive rod 50 . After the signal interface 62 is set, the signal connection with the cable connector 32 can be realized only by inserting the signal connector 40 into the signal interface 62, the operation is simple, and the maintenance work efficiency is effectively improved. In addition, since the insulating cap 60 is detachably connected to the conductive rod 50 through threaded fitting, when the signal interface 62 does not match the model of the signal connector 40, the signal connector 40 can be replaced by replacing the insulating cap 60, which widens the insulation protection of the cable connector Applicability of the device 100 to different types of signal connectors 40 .

Specifically, as shown in FIG. 1 to FIG. 9 , in one embodiment, the insulating box 10 is provided with a connecting hole of the fixing piece 20 , the connecting hole of the fixing piece 20 is communicated with the first accommodating cavity 11 , and the first end of the fixing piece 20 is Extending into the connecting hole of the fixing piece 20, the second end of the fixing piece 20 protrudes out of the connecting hole of the fixing piece 20, pressing the second end of the fixing piece 20 can make the fixing piece 20 switch from the first state to the second state, because the fixing piece 20 Protruding from the first end face of the insulating box 10 , the worker can directly press the fixing member 20 by hand to fix the insulating cable 30 , the structure is simple and the operation is convenient.

Specifically, as shown in FIGS. 1 to 9 , the opening of the connection hole of the fixing member 20 is located on the first end surface of the insulating box 10 , the first opening is located on the second end surface of the insulating box 10 , and the first end surface and the second end surface are perpendicular .

Specifically, as shown in FIG. 9 , in one embodiment, the end face of the fixing member 20 facing the insulated cable 30 is provided with a first arc-shaped groove, and the inner wall of the first accommodating cavity 11 is provided with a second arc-shaped groove The groove 12, the second arc-shaped groove 12 is located on the side of the insulated cable 30 away from the first arc-shaped groove, when the fixing member 20 is in the second state, the groove wall of the first arc-shaped groove and the outer circumference of the insulated cable 30 The surfaces are in contact with each other, and the groove wall of the second arc-shaped groove 12 is in contact with the outer peripheral surface of the insulated cable 30 . The first arc-shaped groove and the second arc-shaped groove 12 are respectively located on both sides of the insulated cable 30, and are in contact with the outer peripheral surface of the insulated cable 30, which effectively improves the fixing of the insulated cable 30 by the fixing member 20. At the same time, it also prevents the fixing member 20 from damaging the insulating circuit.

Specifically, as shown in FIG. 9 , in an embodiment, a rubber pad 21 is provided on the end surface of the fixing member 20 facing the insulated cable 30 . The rubber pad 21 is in contact with the insulating cable 30 , and plays the role of insulation and buffering, which effectively protects the insulating cable 30 and improves the insulating performance of the fixing member 20 .

Optionally, as shown in FIG. 4 , FIG. 5 and FIG. 6 , in one embodiment, the fixing member 20 penetrates the insulating box 10 along the radial direction of the insulated cable 30 , and the fixing member 20 is provided with a third accommodating cavity 22 , The third accommodating cavity 22 penetrates the fixing member 20 along the axial direction of the insulated cable 30. When the fixing member 20 is in the first state, the first accommodating cavity 11 and the third accommodating cavity 22 are coaxially communicated, and when the fixing member 20 is in the second state When the insulating cable 30 is located in the first accommodating cavity 11 and the third accommodating cavity 22, and the inner wall of the third accommodating cavity 22 abuts on the insulating cable 30; the fixing member 20 also has a third state, when the fixing member 20 is in the In the third state, the first accommodating cavity 11 and the third accommodating cavity 22 are dislocated, and pressing the fixing member 20 can make the fixing member 20 switch from the third state to the first state. Before the insulating box 10 is inserted into the insulating cable 30, the fixing member 20 may be in the first state or may be in the third state. When the fixing member 20 is in the first state, make the insulated cable 30 pass through the third accommodating cavity 22 in the first accommodating cavity 11 , press the fixing member 20 to fix the insulating cable 30 , and complete the insulation protection operation of the cable joint 32 . When the fixing member 20 is in the third state, first press the fixing member 20 to switch the fixing member 20 to the first state, that is, the first accommodating cavity 11 and the third accommodating cavity 22 are coaxially connected, and then pass the insulating cable 30 through the first state. The three accommodating cavities 22 are located in the first accommodating cavity 11 , and finally the insulating cable 30 is fixed by pressing the fixing member 20 a second time to complete the insulation protection operation of the cable joint 32 .

Specifically, as shown in FIG. 2 , in an embodiment, two opposite end faces of the insulating box 10 are respectively provided with a first magnet 70 and a second magnet 80 , and the first magnet 70 and the second magnet 80 have opposite magnetic properties. When a plurality of cable joint insulation protection devices 100 are used at the same time, the first magnet 70 and the second magnet 80 are respectively provided on the two opposite end faces of the adjacent insulation boxes 10, so that the two adjacent insulation boxes 10 can be adsorbed on the Together, it is helpful to organize and store a plurality of cable joint insulation protection devices 100 . Sometimes, the cable joint insulation protection device 100 can also be adsorbed and fixed on other equipment through the first magnet 70 or the second magnet 80, which is convenient to use.

Specifically, as shown in FIG. 1 to FIG. 9 , in one embodiment, the cable joint insulation protection device 100 further includes an elastic sheet 90 , one end of the elastic sheet 90 is connected to the insulating box 10 , and the other end of the elastic sheet 90 is connected to the fixing member 20 , the elastic sheet 90 provides the force for the fixing member 20 to press against the insulated cable 30 .

More specifically, as shown in FIGS. 1 to 9 , in one embodiment, the elastic sheet 90 and the insulating box 10 are detachably connected by screws 91 .

More specifically, as shown in FIGS. 1 to 9 , in an embodiment, the elastic piece 90 and the fixing member 20 are detachably connected by screws 91 .

Further specifically, as shown in FIG. 7 , FIG. 8 and FIG. 9 , one end of the elastic sheet 90 is connected to the insulating box 10 , the other end of the elastic sheet 90 is connected to the fixing member 20 , and the opening of the connecting hole of the fixing member 20 is located on the first side of the insulating box 10 . On one end face, the end of the fixing member 20 close to the elastic sheet 90 is the first end of the fixing member 20 , and the end of the fixing member 20 away from the elastic sheet 90 is the second end of the fixing member 20 . When the fixing member 20 is in the first state, the first end of the fixing member 20 protrudes from the first end surface, and the second end of the fixing member 20 extends into the connecting hole of the fixing member 20 . When the fixing member 20 is in the second state, the first end of the fixing member 20 is overlapped with the first end surface, and the second end of the fixing member 20 is in contact with the insulated cable 30 .

Optionally, as shown in FIG. 1 , FIG. 2 , FIG. 3 , FIG. 4 , FIG. 5 and FIG. 6 , in one embodiment, one end of the elastic sheet 90 is connected to the insulating box 10 , and the other end of the elastic sheet 90 is connected to the fixing member 20 For connection, the opening of the connection hole of the fixing member 20 penetrates the first end face and the third end face of the insulating box 10 . is the second end of the fixing member 20 . When the fixing member 20 is in the first state, the first end of the fixing member 20 protrudes from the first end surface of the insulating box 10 , and the second end of the fixing member 20 is coincident with the third end surface of the insulating box 10 . When the fixing member 20 is in the second state, the first end of the fixing member 20 protrudes from the first end face of the insulating case 10 , and the second end of the fixing member 20 protrudes from the third end face of the insulating case 10 . When the fixing member 20 is in the third state, the first end of the fixing member 20 coincides with the first end surface of the insulating box 10 , and the second end of the fixing member 20 protrudes from the third end surface of the insulating box 10 .

Specifically, as shown in FIG. 1 , FIG. 2 , FIG. 3 , FIG. 7 and FIG. 8 , in one embodiment, the insulating box 10 is a transparent plastic insulating box. The transparent plastic insulating box is light in weight, high in strength and good in insulation performance, and it is convenient to check the electrical connection between the cable joint 32 inside the insulating box 10 and the conductive rod 50 .

Specifically, as shown in FIG. 1 , FIG. 2 , FIG. 3 , FIG. 7 and FIG. 8 , in one embodiment, the fixing member 20 is a transparent plastic fixing member.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Back, Left, Right, Vertical, Horizontal, Top, Bottom, Inner, Outer, Clockwise, Counterclockwise, Axial , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated device or Elements must have a particular orientation, be constructed and operate in a particular orientation and are therefore not to be construed as limitations of the invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may be in direct contact between the first and second features, or the first and second features indirectly through an intermediary touch. Also, the first feature being "above", "over" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or an intervening element may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims (10)

1. A cable joint insulation protection device, comprising:

the cable connector comprises an insulation box, wherein a first accommodating cavity is arranged in the insulation box, the first accommodating cavity is provided with a first opening communicated with the outside, the first accommodating cavity is used for accommodating a cable connector, and the cable connector can extend into the first accommodating cavity through the first opening;

the fixing piece is movably connected with the insulating box, so that the fixing piece has a first state and a second state, the fixing piece and the insulating cable are arranged at intervals when the fixing piece is in the first state, and the fixing piece is pressed against the insulating cable when the fixing piece is in the second state and is used for preventing the insulating cable from being drawn out of the insulating box.

2. The cable joint insulation protection device of claim 1, wherein a second accommodating cavity is arranged inside the insulation box, the first accommodating cavity is communicated with the second accommodating cavity, and a second opening communicated with the outside is formed in one end, far away from the first accommodating cavity, of the second accommodating cavity.

3. The cable splice insulation protection device of claim 2, wherein the first opening and the second opening are located at opposite end surfaces of the insulation box, and the first receiving cavity and the second receiving cavity are coaxially arranged.

4. The cable joint insulation protection device of claim 2, further comprising a conductive rod and an insulating cap, wherein a first end of the conductive rod extends into the second accommodating cavity through the second opening, the conductive rod is electrically connected with the cable joint, a second end of the conductive rod extends out of the second opening, and the insulating cap seals a portion of the conductive rod extending out of the second opening inside the insulating cap.

5. The cable joint insulation protection device of claim 4, wherein a conductive spring is disposed on the first end of the conductive rod, and the conductive rod can be electrically connected to the cable joint through the conductive spring.

6. The cable splice insulation protection device of claim 4, wherein the first end of the conductive rod is removably connected to the inner wall of the second receiving cavity by a threaded fit;

and/or a circular boss is arranged on the peripheral surface of the conducting rod, the circular boss is positioned outside the insulating box, and the circular boss is positioned between the insulating cap and the insulating box;

and/or, a gasket is sleeved on the conducting rod and is an insulating gasket, the gasket is positioned outside the insulating box, and the gasket is positioned between the insulating cap and the insulating box.

7. The cable joint insulation protection device according to claim 4, wherein the part of the conductive rod extending out of the second accommodating cavity is a conductive rod output part, a conductive interface is arranged on the conductive rod output part, a through hole is arranged on the insulating cap, the conductive rod output part extends into the through hole, the conductive interface and the through hole have the same opening direction, and a signal joint can extend into the conductive interface through the through hole and is electrically connected with the conductive rod;

or, be equipped with the conducting rod connecting hole in the insulating cap, the second end of conducting rod with the connection can be dismantled through screw-thread fit to the inner wall of conducting rod connecting hole, be equipped with the signal interface on the insulating cap, the signal interface with conducting rod connecting hole intercommunication, the signal joint can stretch into the signal interface with conducting rod electric connection.

8. The cable head insulation protection device of any one of claims 1 to 7, wherein a fixing member connecting hole is formed in the insulation box, the fixing member connecting hole is communicated with the first accommodating cavity, a first end of the fixing member extends into the fixing member connecting hole, a second end of the fixing member extends out of the fixing member connecting hole, the fixing member can be switched from a first state to a second state by pressing the second end of the fixing member, an opening of the fixing member connecting hole is located on a first end face of the insulation box, the first opening is located on a second end face of the insulation box, and the first end face is perpendicular to the second end face.

9. The cable joint insulation protection device according to any one of claims 1 to 7, wherein a first arc-shaped groove is formed in an end surface of the fixing member facing the insulated cable, a second arc-shaped groove is formed in an inner wall of the first accommodating cavity, the second arc-shaped groove is located on one side of the insulated cable away from the first arc-shaped groove, a groove wall of the first arc-shaped groove is abutted with an outer peripheral surface of the insulated cable when the fixing member is in the second state, and a groove wall of the second arc-shaped groove is abutted with the outer peripheral surface of the insulated cable;

and/or a rubber pad is arranged on the end face, facing the insulated cable, of the fixed piece;

or, the fixing member penetrates through the insulating box along the radial direction of the insulating cable, a third accommodating cavity is arranged in the fixing member, the third accommodating cavity penetrates through the fixing member along the axial direction of the insulating cable, when the fixing member is in a first state, the first accommodating cavity and the third accommodating cavity are coaxially communicated, when the fixing member is in a second state, the insulating cable is located in the first accommodating cavity and the third accommodating cavity, and the inner wall of the third accommodating cavity abuts against the insulating cable; the fixing piece is also provided with a third state, when the fixing piece is in the third state, the first accommodating cavity and the third accommodating cavity are arranged in a staggered mode, and the fixing piece can be switched to the first state from the third state by pressing the fixing piece.

10. The cable joint insulation protection device according to any one of claims 1 to 7, wherein a first magnet and a second magnet are respectively arranged on two opposite end faces of the insulation box, and the first magnet and the second magnet have opposite magnetism;

and/or, the cable joint insulation protection device further comprises an elastic sheet, one end of the elastic sheet is connected with the insulation box, the other end of the elastic sheet is connected with the fixing piece, and the elastic sheet provides acting force for the fixing piece to press the insulation cable.

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