PT cable accessory connecting structure capable of being rapidly installed

Abstract

The utility model relates to the technical field of cable accessory connection, in particular to a PT cable accessory connecting structure capable of being rapidly installed, which comprises two symmetrical protective shells, detachable connecting assemblies are arranged in the protective shells, guide pipes are arranged at the outer ends of the protective shells, and waterproof sleeves are sleeved on the outer walls of the guide pipes. A threaded groove is formed in the right end of the left protective shell, and a threaded column is arranged at the position, corresponding to the threaded groove, of the left end of the right protective shell. According to the PT cable accessory connecting structure capable of being rapidly installed, the two protective shells are arranged, under the cooperation of the threaded column and the threaded groove, mutual combination and fixation are achieved, under the cooperation of the insulating plate, insulation protection is conducted on the bottom of the connecting assembly, the electric leakage influence is reduced, and under the cooperation of the two connecting blocks, the connecting assembly is conveniently and rapidly disassembled and matched; and the connecting block is provided with a plurality of metal gaskets and is matched with the clamping plate, so that the cable tightening end column of the cable accessory is tightly clamped and matched, and anti-blocking protection is performed on the end part under the matching of the two groups of silicon rubber cases.

Description

Technical Field

[0001] This utility model relates to the field of cable accessory connection technology, specifically a PT cable accessory connection structure that can be quickly installed. Background Technology

[0002] PT cable accessories are products that connect cables to power transmission and distribution lines and related power distribution equipment. They generally refer to the intermediate and terminal connections of various cables in cable lines. Together with the cables, they form a power transmission network. Cable accessories are mainly based on the characteristics of the cable structure, which can restore the performance of the cable and ensure the extension of the cable length and the connection of the terminal.

[0003] Utility model with announcement number CN216904251U discloses a cable accessory connection structure, including serrations, a connecting sleeve, and an elastic element. The serrations are respectively disposed on the cable accessory and the plug housing, and are adapted to mesh with each other after installation to limit the relative rotation between the cable accessory and the plug housing. One end of the connecting sleeve is fixedly connected to the plug housing, and the other end is sleeved on the cable accessory. The cable accessory is adapted to rotate within the connecting sleeve and to slide along the axial direction of the connecting sleeve.

[0004] The above technical solution uses an elastic element set inside the connecting sleeve. Under the elastic bias pressure of the elastic element, the cable accessory is pressed against the plug housing to make the saw teeth mesh. The maximum axial sliding distance of the cable accessory inside the connecting sleeve is not less than the tooth height of one saw tooth. There is no need for threaded connection between the cable accessory and the connecting cap, or between the plug housing and the connecting cap, which improves the reliability of the connection between the cable accessory and the plug housing. However, the connection between the cable accessories is a plug-in fit, which does not increase the stability of the plug-in, and after the connection is completed, it cannot reduce the influence of the external environment on the internal interference. The connector does not have an insulating structure to reduce the influence of conductivity on disassembly or installation. Utility Model Content

[0005] The purpose of this invention is to provide a quick-installation PT cable accessory connection structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A quick-installable PT cable accessory connection structure includes two symmetrical protective shells, each with a detachable connecting component inside. Each protective shell has a conduit at its outer end, and a waterproof sleeve is fitted onto the outer wall of each conduit. The left protective shell has a threaded groove at its right end and a prism on its outer wall. An insulating plate is located at the bottom of the inner wall of the left protective shell. The connecting component is inserted into the insulating plate. The right protective shell has a threaded post at its left end corresponding to the threaded groove.

[0008] The connecting assembly includes two symmetrical connecting blocks. One of the connecting blocks has a trapezoidal block at its bottom. A trapezoidal groove is formed on the upper surface of the insulating plate corresponding to the trapezoidal block. Several metal gaskets are provided on the outer wall of each connecting block. A third screw hole is formed on the top of the connecting block corresponding to the metal gasket. An adjusting rod is provided in each of the third screw holes. A clamping plate is provided at the bottom of the adjusting rod near the metal gasket.

[0009] Preferably, a connecting end post is provided on the connecting block on the right side at a position corresponding to the metal gasket, and insert blocks are symmetrically provided on the same surface where the connecting block and the connecting end post are located. Each insert block has a second screw hole on its top, and a positioning bolt is provided in each of the second screw holes.

[0010] In this invention, the connection of the connecting end post enables the combined connection between the two connecting blocks, and the metal gasket facilitates the insertion of the terminal block on the cable accessory. Furthermore, the positioning bolt ensures a stable combined installation of the two connecting blocks.

[0011] Preferably, a connecting end hole is provided on the connecting block on the left side corresponding to the connecting end post, and a slot is provided on the connecting block corresponding to the insert block. A round hole communicating with the slot is provided on the top of the connecting block.

[0012] In this utility model, with the cooperation of the connecting end hole, the corresponding plug-in cooperation of the connecting end post is realized, the corresponding electrical connection of the cable accessories on both sides is realized, and the plug-in cooperation of the plug block and the slot is realized. The corresponding positioning bolt passes through the round hole and is threadedly connected to the second screw hole, so as to realize the stable fixed installation cooperation of the two connecting blocks.

[0013] Preferably, the top of the adjusting rod is provided with a knob, the bottom of the adjusting rod is rotatably connected to the clamping plate through a disc, the clamping plate is adapted to the width of the inner wall of the metal gasket, and the metal gasket is in the shape of a hollow prism.

[0014] In this invention, the knob provides the point of force, and the adjusting rod, connected by the thread in the third screw hole, enables the adjustment of the up and down position of the clamp plate. With the cooperation of the clamp plate and the metal washer, the cable end on the cable accessory is electrically connected.

[0015] Preferably, the trapezoidal block and the connecting block are integrally formed. A through hole is provided at the end of the trapezoidal block, and a fixing bolt is provided in the through hole. The width of the outer wall of the connecting block is adapted to the width of the inner wall of the trapezoidal groove. A first screw hole is provided at the bottom of the trapezoidal groove corresponding to the fixing bolt.

[0016] In this invention, the trapezoidal block and the trapezoidal slot are inserted into each other, and the fixing bolt passes through the through hole and is threadedly connected to the first screw hole, thereby fixing the position of the trapezoidal block and the insulating plate, and thus fixing the position of the connecting component on the insulating plate, increasing the stability of the installation.

[0017] Preferably, the bottom of the insulating plate is bonded and fixed to the protective shell on the left side, and a number of anti-slip blocks are provided on the outer wall of the protective shell on the right side.

[0018] In this invention, the insulating plate reduces the impact of electrical leakage from the cable accessories connected to the connecting assembly, and the multiple anti-slip blocks increase the friction, thus enabling the right protective shell to be installed and fixed to the left protective shell.

[0019] Preferably, the threaded post and the protective shell are integrally formed, the outer diameter of the threaded post is adapted to the inner diameter of the threaded groove, and the threaded post and the threaded groove are threadedly connected.

[0020] In this invention, the threaded column and the threaded groove are inserted and threaded together to achieve a stable combination and installation between the two protective shells, providing protection for the internal connecting components and reducing the impact of external environmental interference.

[0021] Preferably, the conduit is fused and fixed to the corresponding protective shell, and a silicone sleeve is symmetrically provided on the inner wall of the conduit near the outer end. The silicone sleeve is funnel-shaped, and the outer wall of the silicone sleeve is bonded and fixed to the inner wall of the conduit.

[0022] In this invention, each conduit is fitted with two silicone sleeves, with the smaller diameter end of the silicone sleeve facing the protective shell. This facilitates the sequential passage of cables on the cable accessories. The silicone sleeves are elastic and can tightly fit the cables on cable accessories of different sizes, providing internal protection.

[0023] Preferably, the inner diameter of the waterproof sleeve is adapted to the outer diameter of the conduit, and elastic rings are symmetrically provided on the outer wall of the waterproof sleeve near one end of the sleeve opening, and a limiting sleeve with an opening is provided at the other end of the waterproof sleeve.

[0024] In this invention, a waterproof sleeve is fitted on the outer wall of the conduit to increase the waterproofness of the combination between the cable accessories and the protective shell. The elastic ring has elasticity, which helps to tightly fix the end of the waterproof sleeve to the conduit. In addition, with the cooperation of the limiting sleeve, cables of different sizes on the cable accessories are clamped and fitted, increasing the tightness of the connection.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] 1. This utility model uses two protective shells, which are combined and fixed together with the threaded post and threaded groove. With the help of the insulating plate, the bottom of the connecting component is insulated and protected, reducing the impact of leakage. The connecting component is easy to disassemble and reassemble with the help of two connecting blocks. The connecting blocks are equipped with multiple metal gaskets and clamping plates to achieve a tight clamping fit of the cable end post of the cable accessory. The connecting blocks are electrically connected to each other through the connecting end post and connecting end hole, and the ends are protected against blockage with the help of two sets of silicone sleeves, thereby protecting the connection of the cable accessory.

[0027] 2. This utility model protects the end of the conduit by setting a waterproof sleeve with an elastic ring, and protects the connection end of the cable accessory with the cooperation of the limiting sleeve, reducing the entry of external water droplets into the conduit and reducing the impact of internal corrosion. The trapezoidal block and trapezoidal groove are inserted and matched, and with the cooperation of the fixing bolt, the stability of the connection component and the protective shell combination is increased. The two protective shells can be opened quickly and easily. The cable terminal of the cable accessory can be quickly disassembled or installed by rotating the adjusting rod. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the connection status of the cable accessory of this utility model;

[0030] Figure 3 This is a schematic diagram showing the protective shell of this utility model in its separated state;

[0031] Figure 4 This is a schematic diagram of one of the protective shell structures of this utility model;

[0032] Figure 5 This is a schematic diagram of another protective shell and connecting component structure of this utility model;

[0033] Figure 6 This is a schematic diagram of the connection components of this utility model in a separated state;

[0034] Figure 7 This is a schematic diagram of one of the connecting block structures of this utility model;

[0035] Figure 8 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0036] The meanings of the labels in the diagram are as follows:

[0037] 1. Protective shell; 10. Insulating plate; 100. Trapezoidal groove; 101. First screw hole; 11. Threaded groove; 12. Prism frustum; 13. Anti-slip block; 14. Threaded post; 15. Conduit; 150. Silicone sleeve;

[0038] 2. Waterproof sleeve; 20. Elastic ring; 21. Limiting sleeve;

[0039] 3. Connecting component; 30. Connecting block; 31. Trapezoidal block; 310. Through hole; 311. Fixing bolt; 32. Connecting end hole; 33. Slot; 330. Round hole; 34. Connecting end post; 35. Insert block; 350. Second screw hole; 351. Positioning bolt; 36. Metal washer; 37. Third screw hole; 370. Adjusting rod; 371. Clamping plate. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Please see Figures 1-8 This embodiment provides a technical solution:

[0042] A quick-installable PT cable accessory connection structure includes two symmetrical protective shells 1, and a detachable connection component 3 is provided inside the protective shell 1. Each protective shell 1 has a conduit 15 at its outer end, and the conduit 15 is fused and fixed to the corresponding protective shell 1. The inner wall of the conduit 15 is symmetrically provided with a silicone sleeve 150 near its outer end. The silicone sleeve 150 is funnel-shaped, and the outer wall of the silicone sleeve 150 is bonded and fixed to the inner wall of the conduit 15.

[0043] In this invention, each conduit 15 is fitted with two silicone sleeves 150, with the smaller diameter end of the silicone sleeve 150 facing the protective shell 1. This helps the cables on the cable accessories to pass through sequentially. The silicone sleeve 150 has elasticity and can fit tightly to the cables on cable accessories of different sizes, providing internal protection.

[0044] Furthermore, a waterproof sleeve 2 is fitted on the outer wall of the conduit 15. The inner diameter of the waterproof sleeve 2 is adapted to the outer diameter of the conduit 15. An elastic ring 20 is symmetrically provided on the outer wall of the waterproof sleeve 2 near the sleeve opening, and a limiting sleeve 21 with an opening is provided on the other end of the waterproof sleeve 2.

[0045] In this invention, a waterproof sleeve 2 is fitted on the outer wall of the conduit 15 to increase the waterproofness of the combination between the cable accessory and the protective shell 1. The elastic ring 20 has elasticity, which helps to tightly fix the end of the waterproof sleeve 2 to the conduit 15. With the cooperation of the limiting sleeve 21, it clamps and fits cables of different sizes on the cable accessory, increasing the tightness of the connection.

[0046] Specifically, the left protective shell 1 has a threaded groove 11 at its right end, and a prism 12 is provided on the outer wall of the protective shell 1. An insulating plate 10 is provided at the bottom of the inner wall of the left protective shell 1. The bottom of the insulating plate 10 is bonded and fixed to the left protective shell 1. Several anti-slip blocks 13 are provided on the outer wall of the right protective shell 1.

[0047] In this invention, the cooperation of the insulating plate 10 reduces the impact of electrical leakage from the cable accessories connected to the connecting assembly 3, and the cooperation of multiple anti-slip blocks 13 increases the friction force, thereby enabling the right protective shell 1 and the left protective shell 1 to be installed and fixed.

[0048] It should be noted that the connecting component 3 is plugged into the insulating plate 10, and the left end of the protective shell 1 on the right side is provided with a threaded post 14 corresponding to the threaded groove 11; the threaded post 14 and the protective shell 1 are integrally formed, the outer diameter of the threaded post 14 is adapted to the inner diameter of the threaded groove 11, and the threaded post 14 and the threaded groove 11 are threadedly connected.

[0049] In this utility model, the threaded column 14 and the threaded groove 11 are inserted and threaded together to achieve a stable combination installation between the two protective shells 1, and to protect the internal connecting components 3 and reduce the impact of external environmental interference.

[0050] Furthermore, the connecting component 3 includes two symmetrical connecting blocks 30. One of the connecting blocks 30 has a trapezoidal block 31 at its bottom. A trapezoidal groove 100 is formed on the upper surface of the insulating plate 10 at the position corresponding to the trapezoidal block 31. The trapezoidal block 31 and the connecting block 30 are integrally formed. A through hole 310 is formed on the end of the trapezoidal block 31. A fixing bolt 311 is provided in the through hole 310. The width of the outer wall of the connecting block 30 is adapted to the width of the inner wall of the trapezoidal groove 100. A first screw hole 101 is formed at the bottom of the trapezoidal groove 100 at the position corresponding to the fixing bolt 311.

[0051] In this utility model, the trapezoidal block 31 is inserted into the trapezoidal groove 100, and the fixing bolt 311 passes through the through hole 310 and is threadedly connected to the first screw hole 101, thereby fixing the position of the trapezoidal block 31 and the insulating plate 10, and thus fixing the position of the connecting component 3 on the insulating plate 10, increasing the stability of the installation.

[0052] Specifically, the outer wall of the connecting block 30 is provided with several metal gaskets 36, and the top of the connecting block 30 is provided with a third screw hole 37 corresponding to the metal gasket 36. Each third screw hole 37 is provided with an adjusting rod 370, and the bottom of the adjusting rod 370 is provided with a clamping plate 371 near the metal gasket 36.

[0053] Secondly, a connecting end post 34 is provided on the right connecting block 30 at the position corresponding to the metal gasket 36, and insert blocks 35 are symmetrically provided on the same surface where the connecting block 30 and the connecting end post 34 are located. Each insert block 35 has a second screw hole 350 on its top, and a positioning bolt 351 is provided in each of the second screw holes 350.

[0054] In this utility model, with the cooperation of the connecting end post 34, the two connecting blocks 30 are combined and connected. With the cooperation of the metal gasket 36, the terminal on the cable accessory is easily plugged in and connected. With the cooperation of the positioning bolt 351, the two connecting blocks 30 are stably combined and installed.

[0055] It is worth adding that a connection end hole 32 is provided on the left connecting block 30 corresponding to the connecting end post 34, and a slot 33 is provided on the connecting block 30 corresponding to the insertion block 35. A round hole 330 communicating with the slot 33 is provided on the top of the connecting block 30.

[0056] In this utility model, with the cooperation of the connecting end hole 32, the corresponding insertion and cooperation of the connecting end post 34 is realized, and the corresponding electrical connection of the cable accessories on both sides is realized. The plug block 35 is inserted and cooperated with the slot 33, and the corresponding positioning bolt 351 passes through the round hole 330 and is threadedly connected to the second screw hole 350, so as to realize the stable fixed installation of the two connecting blocks 30.

[0057] In addition, the top of the adjusting rod 370 is equipped with a knob, and the bottom of the adjusting rod 370 is rotatably connected to the clamping plate 371 through a disc. The clamping plate 371 is adapted to the width of the inner wall of the metal gasket 36, and the metal gasket 36 is in the shape of a hollow prism.

[0058] In this utility model, the knob provides the point of force, and the adjusting rod 370, with the threaded connection of the third screw hole 37, realizes the up and down position adjustment of the clamping plate 371. With the cooperation of the clamping plate 371 and the metal washer 36, the cable end on the cable accessory is electrically connected.

[0059] In this embodiment, the quick-installable PT cable accessory connection structure is used by first combining and fixing the insulating plate 10 with the trapezoidal groove 100 and the protective shell 1 with the prism 12. Then, the waterproof sleeve 2 with the limit sleeve 21 is fitted and matched with the conduit 15 with two silicone sleeves 150 through the elastic ring 20. The two connecting blocks 30 are inserted and matched with the slot 33 through the plug 35 and fixed by the positioning bolt 351. One of the connecting blocks 30 is inserted and matched with the trapezoidal groove 100 through the trapezoidal block 31.

[0060] When cable accessories need to be combined and connected, the corresponding cable accessory cable is passed through the corresponding limiting sleeve 21, and the cable passes through the silicone sleeve 150 in sequence, and contacts and engages with the metal gasket 36 on the corresponding connecting block 30. Rotating the knob on the adjusting rod 370 achieves a tight clamping engagement between the clamping plate 371 and the metal gasket 36, and the corresponding connecting end post 34 and connecting end hole 32 are inserted to achieve an electrical connection between the cable accessories at both ends. The two connecting blocks 30 are fixed by inserting into the slot 33 via the insert block 35, and with the cooperation of the positioning bolt 351, the connecting blocks 3... The components are fixed together, and then the trapezoidal block 31 is inserted into the trapezoidal groove 100. The fixing bolt 311 passes through the through hole 310 and is threaded into the first screw hole 101 to fix the connecting component 3 and the insulating plate 10. Finally, the two protective shells 1 are threaded into the threaded groove 11 through the threaded post 14 to provide stable protection for the internal connecting component 3. With the cooperation of the waterproof sleeve 2 and the silicone sleeve 150, the waterproofness is increased to provide stable protection for the internal components. The overall assembly is easy to install. The prism 12 and the anti-slip block 13 provide force points, which helps to rotate, disassemble and open the assembly.

Claims

1. A quick-mountable PT cable accessory connection structure, comprising two symmetrical protective shells (1), and a detachable connection assembly (3) is arranged inside the protective shell (1), characterized in that: The protection shell (1) is provided with a conduit (15) at the outer end, the outer wall of the conduit (15) is provided with a waterproof sleeve (2), the right end of the left protection shell (1) is provided with a threaded groove (11), and the outer wall of the protection shell (1) is provided with a prismatic table (12); the inner wall of the left protection shell (1) is provided with an insulating plate (10), the connecting assembly (3) is inserted and matched with the insulating plate (10), and the left end of the right protection shell (1) is provided with a threaded column (14) corresponding to the threaded groove (11). The connecting assembly (3) comprises two symmetrical connecting blocks (30), one of which is provided with a ladder-shaped block (31) at the bottom, the upper surface of the insulating plate (10) is provided with a ladder-shaped groove (100) corresponding to the ladder-shaped block (31), the outer wall of the connecting block (30) is provided with a plurality of metal gaskets (36), the top of the connecting block (30) is provided with a third screw hole (37) corresponding to the metal gasket (36), the third screw hole (37) is provided with an adjusting rod (370), and the bottom of the adjusting rod (370) is provided with a clamping plate (371) close to the metal gasket (36).

2. The quickly installable PT cable accessory connection structure according to claim 1, characterized by: The connecting end column (34) is arranged on the right connecting block (30) corresponding to the metal gasket (36), and the plug (35) is symmetrically arranged on the same face of the connecting block (30) and the connecting end column (34). The top of the plug (35) is provided with a second screw hole (350), and the second screw hole (350) is provided with a positioning bolt (351).

3. The quickly installable PT cable accessory connection structure according to claim 2, characterized by: The connecting end hole (32) is arranged on the left connecting block (30) corresponding to the connecting end column (34), and the plug slot (33) is arranged on the connecting block (30) corresponding to the plug (35). The top of the connecting block (30) is provided with a circular hole (330) in communication with the plug slot (33).

4. The quickly installable PT cable accessory connection structure according to claim 1, characterized by: The adjusting rod (370) is provided with a knob at the top, the bottom of the adjusting rod (370) is rotationally connected with the clamping plate (371) through a disc, the width of the clamping plate (371) is matched with the inner wall of the metal gasket (36), and the metal gasket (36) is in a hollow prismatic shape.

5. The quickly installable PT cable accessory connection structure according to claim 1, characterized by: The ladder-shaped block (31) and the connecting block (30) are an integral structure, the end of the ladder-shaped block (31) is provided with a perforation (310), the perforation (310) is provided with a fixing bolt (311), the width of the outer wall of the connecting block (30) is matched with the width of the inner wall of the ladder-shaped groove (100), and the first screw hole (101) is arranged at the bottom of the ladder-shaped groove (100) corresponding to the fixing bolt (311).

6. The quickly installable PT cable accessory connection structure according to claim 1, characterized by: The bottom of the insulating plate (10) is adhesively fixed with the left protection shell (1), and the outer wall of the right protection shell (1) is provided with a plurality of anti-skid blocks (13).

7. The quickly installable PT cable accessory connection structure according to claim 1, characterized by: The threaded column (14) and the protection shell (1) are an integral structure, the outer diameter of the threaded column (14) is matched with the inner diameter of the threaded groove (11), and the threaded column (14) is threadedly connected with the threaded groove (11).

8. The quickly installable PT cable accessory connection structure according to claim 1, characterized by: The conduit (15) is fixed by fusion with the corresponding protective shell (1), and symmetrically provided with silica gel sleeves (150) near the inner wall of the outer end of the conduit (15), the silica gel sleeves (150) are funnel-shaped, and the outer wall of the silica gel sleeves (150) is fixedly connected with the inner wall of the conduit (15).

9. The quickly installable PT cable accessory connection structure according to claim 1, characterized by: The inner diameter of the waterproof sleeve (2) is matched with the outer diameter of the conduit (15), the outer wall of the waterproof sleeve (2) is symmetrically provided with elastic rings (20) near one end of the sleeve opening, and the other end of the waterproof sleeve (2) is provided with an open limiting sleeve (21).

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