Integrated fully-sealed assembly of medium-voltage cable connector and fuse

Abstract

The invention relates to the technical field of buried transformer corollary equipment, in particular to an integrated full-sealed medium-voltage cable connector and fuse assembly which comprises a mounting seat, a placement seat fixed to the top end of the mounting seat and a placement groove formed in the top end of the placement seat. According to the utility model, a screw driver does not need to be used for tightening operation when a cable is crimped and fixed, so that the operation in a narrow space in the box cover of the buried transformer is more convenient, and meanwhile, uniform pressure distribution clamping and fixing can be carried out on the periphery of a cable cell; therefore, the problems of cable damage or connecting part deformation and the like caused by non-uniform pressure are avoided, the crimping stability and reliability are improved, the service life of cable connection is prolonged, meanwhile, self-adaptive clamping adjustment can be carried out on the whole according to the diameter size of a cable core of a connected cable, and therefore the cable clamping device is suitable for clamping cables with different diameters within a certain range, and the clamping efficiency is improved. And the overall use effect is better.

Description

Technical Field

[0001] This invention relates to the technical field of underground transformer supporting equipment, specifically an integral fully sealed medium-voltage cable connector and fuse assembly. Background Technology

[0002] An underground transformer is a sealed medium-voltage distribution transformer with an IP68 protection rating, which can be installed in a dedicated underground well. Its primary side is equipped with a medium-voltage cable plug-in terminal (connector), a medium-voltage current-limiting fuse, and a thermal protection device, while the secondary side uses low-voltage cables. Currently, small-capacity underground transformers are widely used for power distribution in large bridges, highways, and long-distance tunnels.

[0003] In the existing technology, by setting the medium-voltage cable connector and fuse as an integral unit, they occupy less space on the cover of the buried transformer, making installation convenient. The number of fixing openings on the cover of the buried transformer is also reduced, which helps to improve the sealing performance of the components. Furthermore, the horizontally arranged cable conductors also reduce the complexity of cable connections.

[0004] However, existing integrated fully sealed medium-voltage cable connectors and fuses mainly focus on the reliability and sealing of electrical connections. The design of the cable fixing structure is relatively simple, and the cable is connected by screw crimping. This is inconvenient and requires sufficient space to operate screwdrivers and other tools to tighten the screws. In some confined and compact environments, such as inside small buried transformer boxes or control cabinets, operation may be restricted, making it difficult to ensure that the screws are tightened correctly. This can easily lead to loose screws or screws falling off and being lost, increasing the difficulty of construction and installation risks. Summary of the Invention

[0005] The purpose of this invention is to provide an integral, fully sealed medium-voltage cable connector and fuse assembly to solve the problem mentioned in the background art, where cable fixing relies solely on screw crimping, which is inconvenient and requires sufficient space to operate screwdrivers and other tools to tighten the screws. In some confined and compact environments, such as small buried transformers or control cabinets, operation may be restricted, making it difficult to ensure that the screws are tightened correctly, which can easily lead to loosening or loss of screws, increasing construction difficulty and installation risks.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an integral, fully sealed medium-voltage cable connector and fuse assembly, comprising a mounting base, a placement base fixed to the top of the mounting base, and a placement groove formed inside the top of the placement base. A fuse body is fitted inside the top of the placement groove. A latching groove is embedded on the side of the placement base near the top of the fuse body. Conductive connecting blocks are fitted to both ends of the fuse body. Fixing plates are fixedly installed through the exterior of both conductive connecting blocks. The bottom ends of both fixing plates are fixedly installed outside the top of the mounting base. Adjustment clamping components and auxiliary positioning components are provided on the exterior of the side of both fixing plates away from the fuse body. A torsion limiting component is provided on the exterior of the side of the mounting base near the top of the two fixing plates.

[0007] Furthermore, the adjusting clamping assembly includes a limiting rotary cylinder, which is rotatably engaged and installed on the outside of the fixed plate on the side away from the fuse body. Several limiting grooves are uniformly arranged around the inner wall of the limiting rotary cylinder, and a positioning sleeve is provided inside each of the several limiting grooves.

[0008] Furthermore, a rotating shaft is fixedly installed on the outside of the positioning sleeve. One end of the rotating shaft is rotatably installed on the inner wall of one side of the limiting groove. An insulating rod is slidably installed transversely inside the positioning sleeve. An abutting conductive block is fixedly installed at one end of the insulating rod near the center of the positioning sleeve. A limiting rod is rotatably installed at the other end of the insulating rod away from the abutting conductive block. One end of the limiting rod is fixedly installed on the outside of one side of the fixed plate.

[0009] Furthermore, an arc-shaped limiting groove is embedded inside the side of the conductive connecting block near the contacting conductive block, and one end of the conductive connecting block is slidably engaged inside the limiting groove.

[0010] Furthermore, the auxiliary positioning component includes an extension block and a positioning post. The extension block is fixedly installed on the outer side of the limiting rotating cylinder near the top. The positioning post is slidably installed inside one side of the extension block. A push block is laterally fixed on the outer side of one side of the extension block.

[0011] Furthermore, the fixed plate has several positioning holes embedded at equal intervals on the outer side near the positioning post. One end of the positioning post abuts against the inside of one of the positioning holes, and a fixing block is fixedly installed on the end of the positioning post away from the positioning hole.

[0012] Furthermore, two guide rods are symmetrically and slidably installed on both sides of the fixed block. One end of each guide rod is fixedly installed on the outside of one side of the extension block. An anti-spring is sleeved on the outside of each guide rod, and the two ends of each anti-spring are respectively installed on one side of the extension block and the fixed block.

[0013] Furthermore, the torsion limiting assembly includes two limiting seats one and two limiting seats two. The two limiting seats one are symmetrically fixedly installed on the outside of the top side of the mounting base near the fixed plate. The limiting seat two is fixedly installed on the outside of the top of the mounting base located between the two limiting seats one. Limiting rings are fixedly installed inside the two limiting seats one and the limiting seat two. The limiting rings are arranged in a U-shape from the front.

[0014] Furthermore, an arc-shaped rack is fixedly installed on one edge of the limiting rotary cylinder, and a rotating rod is rotatably installed on the outside of the fixed plate near the arc-shaped rack. A limiting gear is fixedly installed through one side of the rotating rod, and one side of the limiting gear meshes with one side of the arc-shaped rack. A support frame is rotatably installed through one end of the rotating rod, and the bottom end of the support frame is fixedly installed on the outside of the top side of the mounting base. An arc-shaped pressing block is fixedly installed through the outside of the rotating rod near the second limiting base, and an arc-shaped abutting block is fixedly installed on the outside of the second limiting base near the pressing block.

[0015] Furthermore, a guide groove is embedded inside the top of the mounting base near the second limiting seat. An auxiliary rod is horizontally fixed inside the guide groove. A limiting slider is fixedly installed at the bottom of the second limiting seat. The limiting slider is slidably installed outside one side of the auxiliary rod. A return spring is sleeved outside one side of the auxiliary rod. The two ends of the return spring are respectively installed on one side of the limiting slider and the inner wall of the guide groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are: By adjusting the installation and coordination of the clamping component and the auxiliary positioning component, the cable can be crimped and fixed without the need for tightening with a screwdriver. This makes it more convenient to operate in the confined space inside the buried transformer box. At the same time, it can clamp and fix the cable core with uniform pressure distribution around it, thereby avoiding problems such as cable damage or deformation of connecting parts caused by uneven pressure. This improves the stability and reliability of crimping, extends the service life of the cable connection, and the whole system can adaptively adjust the clamping according to the diameter of the connecting cable core, making it suitable for clamping cables of different diameters within a certain range, resulting in better overall performance. When the adjusting clamping component and the auxiliary positioning component clamp and position the cable core, they will drive the twisting limiting component on one side to operate synchronously. This will twist and limit the straight cable to a certain extent, so that when the misaligned and twisted cable is subjected to lateral tension during subsequent use, the tension will be decomposed into multiple different directions. Part of the force is used to overcome the resistance generated by the twisting of the cable itself, and part of the force is used to overcome the friction between the cable and the contact object, making the cable more difficult to pull. This will achieve a certain anti-detachment limiting effect, making the overall connection more stable and ensuring the overall connection and assembly effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the installation of the fixed disk and the limiting rotary cylinder of the present invention; Figure 3 This is a three-dimensional structural diagram of the positioning sleeve and insulating rod installation of the present invention; Figure 4 This is a front view schematic diagram of the installation structure of the contacting conductive block and the limiting slide groove of the present invention; Figure 5 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 6 This is a top sectional view of the installation structure of the extension block and positioning post of the present invention; Figure 7 This is a three-dimensional structural diagram of the installation of the extrusion block and the contact block of the present invention; Figure 8 This is a partial cross-sectional three-dimensional structural diagram of the installation of the limiting slider and auxiliary rod of the present invention; Figure 9 This is a schematic diagram demonstrating how the rotation of the extrusion block causes the contact block and the limiting seat to move.

[0018] The components represented by each number in the attached diagram are listed below: 1. Mounting base; 2. Placement base; 3. Placement groove; 4. Fuse body; 5. Conductive connection block; 6. Fixing plate; 7. Snap groove; 8. Limiting rotating cylinder; 9. Limiting groove; 10. Positioning sleeve; 11. Rotating shaft; 12. Insulating rod; 13. Limiting rod; 14. Abutting conductive block; 15. Limiting slide groove; 16. Extension block; 17. Push block; 18. Positioning hole; 19. Positioning post; 20. Fixing block; 21. Guide rod; 22. Abutting spring; 23. Limiting seat one; 24. Limiting retaining ring; 25. Limiting seat two; 26. Arc-shaped rack; 27. Limiting gear; 28. Rotating rod; 29. ​​Support frame; 30. Pressing block; 31. Abutting block; 32. Guide groove; 33. Limiting slider; 34. Auxiliary rod; 35. Return spring. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figure 1 - Figure 6 An integral, fully sealed medium-voltage cable connector and fuse assembly includes a mounting base 1, a placement base 2 fixed to the top of the mounting base 1, and a placement groove 3 formed inside the top of the placement base 2. A fuse body 4 is fitted inside the top of the placement groove 3. A latching groove 7 is embedded on the side of the placement base 2 near the top of the fuse body 4. Conductive connecting blocks 5 are attached to both ends of the fuse body 4. Fixing plates 6 are fixedly installed through the outside of both conductive connecting blocks 5. The bottom ends of both fixing plates 6 are fixedly installed on the outside of the top of the mounting base 1. Adjustment clamping components and auxiliary positioning components are provided on the outside of the side of both fixing plates 6 away from the fuse body 4.

[0021] Specifically, during use, the setting of the slot 7 allows the operator to remove the fuse body 4 that is engaged in the slot 3 inside the placement seat 2 for replacement, making the overall operation more convenient.

[0022] The adjusting clamping assembly includes a limiting rotary cylinder 8, which is rotatably engaged and installed on the outside of the fixed plate 6 on the side away from the fuse body 4. Several limiting grooves 9 are provided at equal angles around the inner wall of the limiting rotary cylinder 8, and a positioning sleeve 10 is provided inside each of the several limiting grooves 9.

[0023] A rotating shaft 11 is fixedly installed on the outside of the positioning sleeve 10. One end of the rotating shaft 11 is rotatably installed on the inner wall of one side of the limiting groove 9. An insulating rod 12 is slidably installed transversely inside the positioning sleeve 10. An abutting and guiding block 14 is fixedly installed at one end of the insulating rod 12 near the center of the positioning sleeve 10. A limiting rod 13 is rotatably installed at the other end of the insulating rod 12 away from the abutting and guiding block 14. One end of the limiting rod 13 is fixedly installed on the outside of one side of the fixed plate 6.

[0024] An arc-shaped limiting groove 15 is embedded inside the side of the connecting block 5 near the contacting block 14, and one end of the connecting block 5 is slidably engaged inside the limiting groove 15.

[0025] The auxiliary positioning component includes an extension block 16 and a positioning post 19. The extension block 16 is fixedly installed on the outside of the limiting rotating cylinder 8 near the top. The positioning post 19 is slidably installed inside one side of the extension block 16. A push block 17 is laterally fixed on the outside of one side of the extension block 16.

[0026] The fixed plate 6 has several positioning holes 18 embedded at equal intervals on the outer side near the positioning post 19. One end of the positioning post 19 abuts against the inside of one of the positioning holes 18, and a fixing block 20 is fixedly installed on the end of the positioning post 19 away from the positioning hole 18.

[0027] Two guide rods 21 are symmetrically and slidably installed on both sides of the fixed block 20. One end of each guide rod 21 is fixedly installed on the outside of one side of the extension block 16. Each guide rod 21 is fitted with a retaining spring 22. Both ends of the retaining spring 22 are respectively installed on one side of the extension block 16 and the fixed block 20.

[0028] In this embodiment, the mounting base 1 is first fixed to the buried transformer box cover to secure the medium-voltage cable connector and fuse assembly to the buried transformer box cover. Then, the cable is connected to the fuse body 4. During connection, the cable is first inserted between multiple contacting conductive blocks 14. Then, the top push block 17 is pushed. When the push block 17 is pushed, it causes the extension block 16 and the limiting rotating cylinder 8 to rotate synchronously. When the limiting rotating cylinder 8 rotates, it causes several positioning sleeves 10 to rotate synchronously. When the positioning sleeves 10 rotate, they cooperate with the through-sliding installation of the positioning sleeves 10 and the through-sliding installation of the insulating rod 12, as well as the rotational installation and positioning of the insulating rod 12 by the limiting rod 13, thereby causing the insulating rod 12 to rotate... One side of the contacting conductive block 14 rotates towards the middle position of the limiting rotating cylinder 8 until several contacting conductive blocks 14 evenly contact and clamp the side of the cable core, thereby positioning and fixing the cable. Later, when the cable is energized, it will be connected to the fuse body 4 through the contacting conductive block 14 and the conductive connecting block 5. This eliminates the need to use a screwdriver to tighten the cable during crimping, making it more convenient to operate in the narrow space inside the buried transformer box. At the same time, it can evenly distribute pressure around the cable core for clamping and fixing, thereby avoiding problems such as cable damage or deformation of connecting parts caused by uneven pressure, improving the stability and reliability of crimping, and extending the service life of the cable connection.

[0029] It should be noted that when fixing cables of different diameters, simply adjust the distance of the push block 17 to achieve adaptive clamping adjustment according to the diameter of the cable core. This makes it suitable for clamping cables of different diameters within a certain range, resulting in better overall performance.

[0030] It should be noted that when the push block 17 is rotated, the positioning post 19, which is slidably installed inside the extension block 16, will rotate and move synchronously. When the positioning post 19 moves, it comes into contact with and is pressed against the surface of the fixed plate 6, causing the contact spring 22 on one side to be compressed. This causes the positioning post 19 to disengage from the original positioning hole 18. When the push block 17 rotates to the designated position, the contact spring 22 rebounds and causes the fixed block 20 and the positioning post 19 to be inserted back into the corresponding positioning hole 18. This limits the position of the push block 17 and the extension block 16, ensuring that the position of the push block 17 and the extension block 16 will not easily change during subsequent use. This ensures the tightness of the contact conductor block 14 in clamping and pressing the cable, and guarantees the overall performance.

[0031] Example 2: Please refer to Figure 4 , Figure 7 , Figure 8 and Figure 9 This embodiment further illustrates that, for example, the mounting base (1) is provided with a torsion limiting component on the outer side of the top of the two fixed plates (6).

[0032] The torsion limiting assembly includes two limiting seats 1 23 and two limiting seats 25. The two limiting seats 1 23 are symmetrically fixedly installed on the outer side of the top of the mounting base 1 near the fixed plate 6. The limiting seat 25 is fixedly installed on the outer top of the mounting base 1 between the two limiting seats 1 23. Limiting rings 24 are fixedly installed inside the two limiting seats 1 23 and the limiting seat 25. The limiting rings 24 are U-shaped from the front view.

[0033] Specifically, by setting the limiting ring 24 in a U-shape, the cable can be stably clamped and locked after it comes into contact with the limiting ring 24, ensuring placement stability.

[0034] An arc-shaped rack 26 is fixedly installed on one side edge of the limiting rotary cylinder 8. A rotating rod 28 is rotatably installed on the outside of the fixed disk 6 near the arc-shaped rack 26. A limiting gear 27 is fixedly installed through one side of the rotating rod 28. One side of the limiting gear 27 meshes with one side of the arc-shaped rack 26. A support frame 29 is rotatably installed through one end of the rotating rod 28. The bottom end of the support frame 29 is fixedly installed on the outside of the top side of the mounting base 1. An arc-shaped extrusion block 30 is fixedly installed through one side of the rotating rod 28 near the limiting seat 25. An arc-shaped abutment block 31 is fixedly installed on one side of the limiting seat 25 near the extrusion block 30.

[0035] Specifically, by setting up the arc-shaped extrusion block 30 and the arc-shaped contact block 31, the distance of the contact block 31 to press and squeeze can be changed as the side curvature changes when the extrusion block 30 rotates, resulting in a better overall contact and movement effect.

[0036] The mounting base 1 has a guide groove 32 embedded inside the top of the limiting base 25. An auxiliary rod 34 is fixedly installed horizontally inside the guide groove 32. A limiting slider 33 is fixedly installed at the bottom of the limiting base 25. The limiting slider 33 is slidably installed through and outside one side of the auxiliary rod 34. A return spring 35 is sleeved on the outside of one side of the auxiliary rod 34. The two ends of the return spring 35 are respectively installed on one side of the limiting slider 33 and the inner wall of the guide groove 32.

[0037] In this embodiment, when the push block 17 and the extension block 16 rotate to drive the limiting rotary cylinder 8 to rotate synchronously for positioning and crimping the cable core, the arc-shaped rack 26 on the side of the limiting rotary cylinder 8 will rotate synchronously. When the arc-shaped rack 26 rotates, it will drive the limiting gear 27 meshing on one side to rotate synchronously. Through the rotation of the limiting gear 27, the rotating rod 28 on one side will rotate on the support frame 29. When the rotating rod 28 rotates, it will drive the pressing block 30 to rotate synchronously at a certain angle. When the pressing block 30 rotates, it will press the abutment block 31 on one side. After being pressed, the abutment block 31 will drive the limiting seat 25 on one side and the limiting slider 33 at the bottom to slide a certain distance on the auxiliary rod 34 inside the guide groove 32, so that the limiting seat 1 23 and the limiting seat 2 25 are misaligned, thereby twisting the cable engaged inside the limiting ring 24 at the top of the limiting seat 1 23 and the limiting seat 2 25 to a certain extent. Figure 9 As shown, this means that when the misaligned and twisted cable is subjected to lateral tension during subsequent use, the tension will be decomposed into multiple different directions. Part of the force is used to overcome the resistance generated by the twisting of the cable itself, and part of the force is used to overcome the friction between the cable and the contact object, making the cable more difficult to pull. This achieves a certain anti-detachment and limiting effect, making the overall connection more stable and ensuring the overall connection and assembly effect.

[0038] It should be noted that when the push block 17 and the extension block 16 rotate to drive the limit rotating cylinder 8 to rotate synchronously to loosen and disassemble the cable core, the side arc-shaped rack 26 will be driven to rotate in the opposite direction to reset. This causes the limit gear 27 and the rotating rod 28 to drive the squeezing block 30 to reset and rotate. With the return spring 35 on one side resisting the rebound of the limit slider 33, the second limit seat 25 moves back to reset between the two first limit seats 23, so that the twisted cable is reset to a straight state, and the cable can be quickly pulled and disassembled.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integral, fully sealed medium-voltage cable connector and fuse assembly, comprising a mounting base (1), a placement seat (2) fixed to the top of the mounting base (1), and a placement groove (3) formed inside the top of the placement seat (2), characterized in that: The fuse body (4) is fitted inside the top of the placement slot (3). The placement seat (2) has a snap-fit ​​groove (7) embedded on the side near the top of the fuse body (4). Both ends of the fuse body (4) are fitted with conductive connecting blocks (5). The two conductive connecting blocks (5) are fixedly mounted with fixing plates (6) through the outside of the two connecting blocks (5). The bottom ends of the two fixing plates (6) are fixedly mounted on the outside of the top of the mounting seat (1). The side of the two fixing plates (6) away from the fuse body (4) is provided with an adjustment clamping component and an auxiliary positioning component. The side of the mounting seat (1) near the top of the two fixing plates (6) is provided with a torsion limiting component.

2. The assembly of an integral, fully sealed medium-voltage cable connector and fuse according to claim 1, characterized in that: The adjusting clamping assembly includes a limiting rotary cylinder (8), which is rotated and engaged on the outside of the fixed plate (6) on the side away from the fuse body (4). A number of limiting grooves (9) are provided at equal angles around the inner wall of the limiting rotary cylinder (8), and a positioning sleeve (10) is provided inside each of the limiting grooves (9).

3. The assembly of an integral, fully sealed medium-voltage cable connector and fuse according to claim 2, characterized in that: A rotating shaft (11) is fixedly installed on the outside of the positioning sleeve (10). One end of the rotating shaft (11) is rotatably installed on the inner wall of the limiting groove (9). An insulating rod (12) is slidably installed through the inside of the positioning sleeve (10). An abutting conductor block (14) is fixedly installed at one end of the insulating rod (12) near the center of the positioning sleeve (10). A limiting rod (13) is rotatably installed through the other end of the insulating rod (12) away from the abutting conductor block (14). One end of the limiting rod (13) is fixedly installed on the outside of one side of the fixed plate (6).

4. The assembly of an integral, fully sealed medium-voltage cable connector and fuse according to claim 3, characterized in that: The conductive connecting block (5) has an arc-shaped limiting groove (15) embedded in the side of the side close to the contacting conductive block (14), and one end of the conductive connecting block (5) is slidably engaged and installed inside the side of the limiting groove (15).

5. The assembly of an integral, fully sealed medium-voltage cable connector and fuse according to claim 2, characterized in that: The auxiliary positioning component includes an extension block (16) and a positioning post (19). The extension block (16) is fixedly installed on the outside of the limiting rotating cylinder (8) near the top. The positioning post (19) is slidably installed inside the side of the extension block (16). A push block (17) is laterally fixed on the outside of the side of the extension block (16).

6. The assembly of an integral, fully sealed medium-voltage cable connector and fuse according to claim 5, characterized in that: The fixed plate (6) has several positioning holes (18) embedded at equal intervals on the outer side of the side near the positioning post (19). One end of the positioning post (19) abuts against the inside of one of the positioning holes (18), and a fixing block (20) is fixedly installed on the end of the positioning post (19) away from the positioning hole (18).

7. The assembly of an integral, fully sealed medium-voltage cable connector and fuse according to claim 6, characterized in that: Two guide rods (21) are symmetrically slidably installed on both sides of the fixed block (20). One end of each guide rod (21) is fixedly installed on the outside of one side of the extension block (16). A retaining spring (22) is sleeved on the outside of each guide rod (21). The two ends of each retaining spring (22) are respectively installed on one side of the extension block (16) and the fixed block (20).

8. The assembly of an integral, fully sealed medium-voltage cable connector and fuse according to claim 2, characterized in that: The torsion limiting assembly includes two limiting seats one (23) and two limiting seats two (25). The two limiting seats one (23) are symmetrically fixedly installed on the outside of the top side of the mounting base (1) near the fixed plate (6). The limiting seat two (25) is fixedly installed on the outside of the top of the mounting base (1) between the two limiting seats one (23). A limiting ring (24) is fixedly installed inside both the two limiting seats one (23) and the limiting seat two (25). The limiting ring (24) is U-shaped from the front.

9. The assembly of an integral, fully sealed medium-voltage cable connector and fuse according to claim 8, characterized in that: An arc-shaped rack (26) is fixedly installed on one side edge of the limiting rotary cylinder (8). A rotating rod (28) is rotatably installed on the side of the fixed disk (6) near the arc-shaped rack (26). A limiting gear (27) is fixedly installed through one side of the rotating rod (28). One side of the limiting gear (27) meshes with one side of the arc-shaped rack (26). A support frame (29) is rotatably installed through one end of the rotating rod (28). The bottom end of the support frame (29) is fixedly installed on the outside of the top side of the mounting base (1). An arc-shaped extrusion block (30) is fixedly installed through one side of the rotating rod (28) near the second limiting seat (25). An arc-shaped abutment block (31) is fixedly installed on one side of the second limiting seat (25) near the extrusion block (30).

10. The assembly of an integral, fully sealed medium-voltage cable connector and fuse according to claim 8, characterized in that: The mounting base (1) has a guide groove (32) embedded inside the top of the limiting seat (25). An auxiliary rod (34) is fixedly installed horizontally inside the guide groove (32). A limiting slider (33) is fixedly installed at the bottom of the limiting seat (25). The limiting slider (33) is slidably installed through the auxiliary rod (34) on one side outside. A reset spring (35) is sleeved on one side outside the auxiliary rod (34). The two ends of the reset spring (35) are respectively installed on one side of the limiting slider (33) and the inner wall of the guide groove (32).

Images