Modularized cable accessory metal combination structure

Abstract

The utility model relates to a modularized cable accessory metal combination structure, which relates to the technical field of cable accessories and comprises a copper pipe, a first cable, a second cable and a pushing assembly, the first cable and the second cable are both movably arranged on the copper pipe, and the pushing assembly comprises a metal circular ring, a moving piston, a wedge block, a connecting shell and a thermosensitive wax material. The metal circular ring is fixedly arranged on the copper pipe, the movable piston is arranged on the metal circular ring in a sliding mode, the wedge-shaped block is movably arranged on the copper pipe, the movable piston is movably sleeved with the connecting shell, the wedge-shaped block abuts against the inner wall of the connecting shell, and a circular ring protrusion is arranged on the inner wall of the connecting shell. The containing cavity is formed among the metal circular ring, the movable piston and the circular ring protrusion of the connecting shell, and the thermosensitive wax material is arranged in the containing cavity, so that heat energy can be converted into mechanical energy through the pushing assembly, a copper pipe is compressed, cable accessories are compressed through simple heating operation, and the cable accessories are prevented from being damaged. And the operation complexity is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of cable accessories, and in particular to a modular cable accessory metal combination structure. Background Art

[0002] Cable accessories are a general term for various devices and components used in cable lines to connect, protect, seal and insulate cables. They are an important part of the cable system, used to ensure the safe operation of cables, extend the service life of cables and meet different environmental and electrical requirements. As an important part of the cable system, the design, manufacturing and installation quality of cable accessories directly affect the safe operation and service life of the cable system.

[0003] Currently, a Chinese utility model patent application with publication number CN 220273298U, published on December 29, 2023, provides a cold-shrink cable accessory, comprising a cold-shrink terminal tube, a cable, and an shed. The cable is sleeved with a terminal at the top, the cable is sleeved with a cold-shrink insulating tube at the bottom, and the cold-shrink terminal tube is sleeved with a cold-shrink sealing tube at the top. The cold-shrink terminal tube is fixedly connected to a mounting block on its side surface, and the mounting block has an annular groove on its side surface. The shed has an inner cavity at the bottom, and a mounting hole at the top of the shed has an annular ring protrusion fixedly connected to the mounting hole. The auxiliary shed has a tapered groove at the top. The cold-shrink cable accessory, through the connection and interaction of the cold-shrink terminal tube, cable, shed, terminal, cold-shrink insulating tube, cold-shrink sealing tube, auxiliary shed, mounting block, annular groove, inner cavity, mounting hole, annular ring protrusion, and tapered groove, achieves the effect of simple installation and removal of the shed, enhanced flexibility, and convenient replacement, improving environmental protection and reducing resource waste.

[0004] The cold shrink cable accessories in the related technology cannot quickly compress the connector body and the cables against each other during use when two cables are connected to each other, which increases the workload of people. At the same time, it may cause problems such as poor contact, increased resistance, and heat generation, thereby affecting the safe operation of the power grid.

[0005] Therefore, it is necessary to provide a modular cable accessory metal combination structure to solve the above problems. Utility Model Content

[0006] An embodiment of the present application provides a modular cable accessory metal combination structure, which is intended to improve the technical problem in the related art that, during the process of connecting two cables to each other, the connector body and the cables cannot be quickly pressed against each other during use.

[0007] An embodiment of the present application provides a modular cable accessory metal combination structure, including a copper tube, a first cable, a second cable and a pushing assembly, wherein the first cable and the second cable are both movably arranged on the copper tube, and the pushing assembly includes a metal ring, a movable piston, a wedge block, a connecting shell and a heat-sensitive wax material, the metal ring is fixedly arranged on the copper tube, the movable piston is slidably arranged on the metal ring, the wedge block is movably arranged on the copper tube, the connecting shell is movably sleeved on the movable piston, the wedge block abuts against the inner wall of the connecting shell, and a ring protrusion is provided on the inner wall of the connecting shell, and an accommodating cavity is formed between the metal ring, the movable piston and the ring protrusion of the connecting shell, and the heat-sensitive wax material is arranged in the accommodating cavity.

[0008] The above-mentioned technical solution in the embodiment of the present application has at least the following technical effects: in the process of promoting the mutual compression between the first cable and the second cable and the copper tube by using the modular cable accessory metal combination structure, the connecting shell is heated, so that the heat-sensitive wax material in the accommodating cavity is transformed from solid to liquid by heating, so that the volume expansion can reach 13% to 15%, and the thermal energy is converted into mechanical energy, pushing the movable piston to move in the direction of the wedge block, thereby prompting the wedge block to squeeze the copper tube, prompting the wedge block to better extrude and compress the copper tube.

[0009] The modular cable accessory metal composite structure provided in the embodiment of the present application can compress the copper tube by pushing the components, utilizing the performance of the thermosensitive wax material, and heating the thermosensitive wax material to expand the volume of the thermosensitive wax material, thereby converting thermal energy into mechanical energy. Through a simple heating operation, the cable accessories are compressed, the complexity of the operation is reduced, and the installation and maintenance process is made more convenient and efficient, saving time and labor costs.

[0010] In some embodiments, a tapered groove is formed at one end of the two movable pistons that is away from each other, and the wedge block is in sliding contact with the inner wall of the tapered groove.

[0011] In some embodiments, a directional plate is provided at the location where the tapered groove on the movable piston abuts against the wedge block.

[0012] In some embodiments, the wedge blocks are arranged in a ring array on the copper tube.

[0013] In some embodiments, the connection housing is mainly made of steel.

[0014] In some embodiments, a heating ring is provided on the outer wall of the connecting shell at a position corresponding to the accommodating cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1A schematic diagram of the three-dimensional structure of a modular cable accessory metal assembly structure provided in an embodiment of the present application;

[0016] Figure 2 A schematic cross-sectional view of the connection housing provided in an embodiment of the present application;

[0017] Figure 3 A schematic cross-sectional view of a modular cable accessory metal assembly structure provided in an embodiment of the present application;

[0018] Among them, the reference numerals in the figures are:

[0019] 1. Copper tube; 11. First cable; 12. Second cable; 2. Pushing assembly; 21. Metal ring; 22. Moving piston; 221. Conical groove; 23. Wedge block; 24. Connecting shell; 241. Ring protrusion; 25. Orienting plate; 26. Heat-sensitive wax material; 27. Accommodating chamber; 3. Heating ring. DETAILED DESCRIPTION

[0020] Based on this, in order to improve the technical problem in the related art that the cables cannot be quickly pressed against each other between the connector body and the cables during use when two cables are connected to each other, the embodiment of the present application provides the following solution.

[0021] Please also refer to Figures 1 to 3 An embodiment of the present application provides a modular cable accessory metal combination structure, which includes a copper tube 1, a first cable 11, a second cable 12 and a pushing component 2. The first cable 11 and the second cable 12 are both movably arranged on the copper tube 1, and the pushing component 2 is arranged on the copper tube 1.

[0022] In some embodiments, please refer to Figures 1 to 3 The pushing component 2 includes a metal ring 21, a movable piston 22, a wedge block 23, a connecting shell 24 and a heat-sensitive wax material 26. The metal ring 21 is fixedly arranged on the copper tube 1, the movable piston 22 is slidably arranged on the metal ring 21, the wedge block 23 is movably arranged on the copper tube 1 in an annular array, and the connecting shell 24 is movably sleeved on the movable piston 22. The wedge block 23 abuts against the inner wall of the connecting shell 24. The ends of the two movable pistons 22 away from each other are provided with a tapered groove 221, and the wedge-shaped The block 23 is in sliding contact with the inner wall of the tapered groove 221, and an orienting plate 25 is provided at the joint between the tapered groove 221 of the movable piston 22 and the wedge-shaped block 23. A circular ring protrusion 241 is provided on the inner wall of the connecting shell 24. A accommodating cavity 27 is formed by the metal ring 21, the movable piston 22 and the circular ring protrusion 241 of the connecting shell 24. The heat-sensitive wax material 26 is provided in the accommodating cavity 27. A heating ring 3 is provided on the outer wall of the connecting shell 24 at a position corresponding to the position of the accommodating cavity 27. The connecting shell 24 is mainly made of steel.

[0023] With such an arrangement, in the process of promoting the mutual compression between the first cable 11 and the second cable 12 and the copper tube 1 by using the modular cable accessory metal combination structure, the connecting shell 24 is heated by the heating ring 3, so that the connecting shell 24 and the corresponding external portion of the accommodating groove are evenly heated. The connecting shell 24 is made of steel material, which can better conduct heat, so that the heat-sensitive wax material 26 in the accommodating cavity 27 is heated from solid to liquid, so that the volume expansion can reach 13% to 15%, and the thermal energy is converted into mechanical energy, pushing the movable piston 22 to move in the direction of the wedge block 23, so that the tapered groove 221 of the movable piston 22 squeezes the wedge block 23, thereby prompting the wedge block 23 to squeeze the copper tube 1, and a directional plate 25 is provided at the contact point between the tapered groove 221 of the movable piston 22 and the wedge block 23 to ensure the moving trajectory of the wedge block 23 and prevent the wedge block 23 from deflecting, thereby prompting the wedge block 23 to better extrude and compress the copper tube 1. In this way, only the steel connection shell 24 is heated, and the operation process is simple and easy. The steel has good thermal conductivity and can quickly transfer heat to the thermosensitive wax material 26 in the accommodating cavity 27, causing it to quickly change from solid to liquid and expand. No complex mechanical tools or equipment are required, which reduces the complexity of installation and maintenance and reduces the requirements for the operator's skill level. A directional plate 25 is provided at the junction of the tapered groove 221 of the moving piston 22 and the wedge block 23 to ensure the moving trajectory of the wedge block 23 and prevent the wedge block 23 from shifting during the extrusion process. This design improves the stability and reliability of the structure, ensures that the pressing force is evenly distributed, and avoids local stress concentration. The mechanical energy generated by the expansion of the thermosensitive wax material 26 can be efficiently converted into a pressing force on the copper tube 1, ensuring a tight connection between the cable and the copper tube 1, reducing contact resistance and improving electrical performance. Due to the simple operation process, installation errors caused by improper human operation are reduced, and the overall safety of the system is improved. At the same time, the steel material has good weather resistance and can maintain its performance under different environmental conditions, making it suitable for use outdoors or in harsh environments.

[0024] The implementation principle of a modular cable accessory metal composite structure in an embodiment of the present application is as follows: in the process of promoting mutual compression between the first cable 11 and the second cable 12 and the copper tube 1 by using the modular cable accessory metal composite structure, the connecting shell 24 is heated by the heating ring 3, so that the connecting shell 24 and the corresponding portion outside the accommodating groove are evenly heated. The connecting shell 24 is made of steel material, which can better conduct heat, so that the heat-sensitive wax material 26 in the accommodating cavity 27 is heated from solid to liquid, so that the volume expansion can reach 13% to 15%, and the thermal energy is converted into mechanical energy to push the movable piston 22 to move in the direction of the wedge block 23, so that the tapered groove 221 of the movable piston 22 squeezes the wedge block 23, thereby prompting the wedge block 23 to squeeze the copper tube 1. A directional plate 25 is provided at the contact point between the tapered groove 221 of the movable piston 22 and the wedge block 23 to ensure the moving trajectory of the wedge block 23 and prevent the wedge block 23 from deflecting, thereby prompting the wedge block 23 to better extrude and compress the copper tube 1.

[0025] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A modular cable accessory metal composite structure, characterized by: The invention comprises a copper tube (1), a first cable (11), a second cable (12) and a pushing assembly (2), wherein the first cable (11) and the second cable (12) are both movably arranged in the copper tube (1), and the pushing assembly (2) comprises a metal ring (21), a movable piston (22), a wedge block (23), a connecting shell (24) and a heat-sensitive wax material (26), wherein the metal ring (21) is fixedly arranged on the copper tube (1), and the movable piston (22) is slidably arranged on the metal ring (21). The wedge-shaped block (23) is movably arranged on the copper tube (1), and the connecting shell (24) is movably sleeved on the movable piston (22). The wedge-shaped block (23) abuts against the inner wall of the connecting shell (24), and a circular protrusion (241) is provided on the inner wall of the connecting shell (24). An accommodating cavity (27) is formed between the metal ring (21), the movable piston (22) and the circular protrusion (241) of the connecting shell (24), and the heat-sensitive wax material (26) is provided in the accommodating cavity (27).

2. The modular cable accessory metal composite structure according to claim 1, characterized in that: A tapered groove (221) is formed at one end of the two movable pistons (22) that is away from each other, and the wedge-shaped block (23) is in sliding contact with the inner wall of the tapered groove (221).

3. The modular cable accessory metal composite structure according to claim 2, characterized in that: A directional plate (25) is provided at the point where the tapered groove (221) on the movable piston (22) abuts against the wedge-shaped block (23).

4. The modular cable accessory metal composite structure according to claim 3, characterized in that: The wedge-shaped blocks (23) are arranged in a ring-shaped array on the copper tube (1).

5. The modular cable accessory metal assembly structure according to claim 4, characterized in that: The connecting shell (24) is mainly made of steel material.

6. The modular cable accessory metal composite structure according to claim 5, characterized in that: A heating ring (3) is provided on the outer wall of the connecting shell (24) at a position corresponding to the accommodating cavity (27).

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