High-voltage cable quick connector

Abstract

The invention belongs to the technical field of power equipment, and particularly discloses a high-voltage cable quick connector which comprises an installation center shaft, a rubber insulation core is arranged in the center of the installation center shaft, the installation center shaft is divided into a plurality of parts by insulation layers in the axis direction, and placing grooves are formed in the outer walls of the two ends of the installation center shaft in an array mode around the axis. Fixing heads are arranged at the two ends of the mounting center shaft, each fixing head is composed of a supporting sleeve and a blocking plate, the blocking plates are arranged at the ends of the supporting sleeves, sleeves are arranged at the ends of the fixing heads, outer rotating cylinders are rotationally arranged on the outer sides of the sleeves and the fixing heads, axial transmission assemblies are symmetrically arranged on the inner walls of the middles of the outer rotating cylinders, and wire core pressing assemblies are arranged at the inner ends of the sleeves; a skin pressing assembly is arranged at the end of the fixing head. According to the invention, the outer rotating cylinder is utilized to harden the connection part of the cable, and the cable core and the cable skin are pressed tightly at the same time, thereby reducing the risk that the connection part is broken due to the shaking of the cable.

Description

Technical Field

[0001] The invention belongs to the technical field of electric power equipment, and in particular relates to a high-voltage cable quick connector. Background Art

[0002] 10kV high-voltage cables are used to transmit power at a voltage level of 10kV (between 1000V and 1000kV). They are primarily used in power transmission trunk lines, providing efficient and reliable power transmission.

[0003] High-voltage cables are composed of multiple cable cores and the cable sheath wrapped around them. When a cable is disconnected, a metal cable connector is needed to quickly connect the cables together to ensure the supply of power. The metal cable connector includes a porous metal cable waterproof connector. However, existing cable connection methods include twisted connection, terminal blocks, copper tube crimping, heat shrink cable middle head connection, parallel groove clamp connection, quick clamp connection, etc.

[0004] Because the cable needs to be large in diameter and weight, and the cable is flexible, when using terminal blocks and copper tubes for crimping, when the cable shakes, forces perpendicular to the cable axis and pulling forces along the cable axis appear on both sides of the connection, causing slippage between the cable core and the terminal blocks and copper tubes, which can easily cause the cable to break.

[0005] Therefore, a high-voltage cable quick connector is needed to solve the above problems. Summary of the Invention

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a high-voltage cable quick connector, which uses an external rotating cylinder to harden the cable connection and simultaneously press and fix the cable core and cable sheath, thereby reducing the force perpendicular to the cable axis and the pulling force along the cable axis on both sides of the connection, thereby reducing the risk of the connection being disconnected due to cable shaking.

[0007] The technical solution adopted by the present invention is as follows: The present invention proposes a high-voltage cable quick connector, including an installation center axis, the center of the installation center axis is a rubber insulating core, the installation center axis is divided into multiple parts by an insulating layer around the axial direction, the outer walls of both ends of the installation center axis are respectively provided with cable grooves around the axial array, and the two ends of the installation center axis are provided with fixed heads, the fixed head is composed of a support sleeve and a blocking plate, the blocking plate is provided at the end of the support sleeve, and the end face of the blocking plate is provided with a through hole around the axial array, and the through hole is arranged corresponding to the cable groove, the end of the fixed head is provided with a sleeve, the outer side of the sleeve and the fixed head is rotatably provided with an outer rotating cylinder, the middle inner wall of the outer rotating cylinder is symmetrically provided with an axial transmission assembly, the inner end of the sleeve is provided with a wire core clamping assembly, and the end of the fixed head is provided with a skin clamping assembly.

[0008] The transmission shaft is designed to have a first end fixed to the upper end of the shaft and a second end fixed to the upper end of the shaft so as to allow the transmission shaft to move relative to the first end of the shaft and to move relative to the first end of the shaft.

[0009] Furthermore, the wire core compression assembly includes a compression strip, a linkage block, a top plate and a compression spring. The inner wall of the sleeve is provided with a compression groove, and the compression groove gradually inclines toward the center from the outside to the inside. The outer wall of the installation center axis is provided with a mounting hole around the axis array, and the compression spring is arranged on the inner bottom wall of the mounting hole. The top plate is slidably arranged in the mounting hole, and one end of the top plate is arranged on the compression spring, and the linkage block is slidably arranged on the linkage shaft. The compression strip is arranged in a right-angled triangle, and the lower wall of the compression strip is arranged in an arc shape. The outer end of the compression strip is arranged on the linkage block, and the compression strip is slidably arranged on the outer end face of the top plate. Under the action of the compression spring, the inclined surface of the compression strip is always in contact with the compression groove.

[0010] Furthermore, the skin pressing assembly includes an elastic rubber block, a push plate and a rotating shaft. A transmission groove is provided at the limiting slide groove at the end of the support sleeve. The rotating shaft is arranged on the inner wall of the transmission groove. The push plate is rotated on the rotating shaft through a torsion spring, and the elastic rubber block is arranged at the lower end of the push plate.

[0011] Furthermore, the lower wall of the compression bar is concave, and the upper end surface of the top plate is convex.

[0012] Furthermore, the outer end surface of the sliding block is arc-shaped, and the outer end surface of the sliding block is matched with the inner wall of the movable ring groove.

[0013] Furthermore, a rotating ring is rotatably provided at the middle of the mounting center shaft, and the rotating ring is fixed to the inner wall of the outer rotating cylinder via connecting ribs.

[0014] Furthermore, a slot is provided in the middle of the outer wall of the outer rotating cylinder.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows: 1. Remove the cable sheath at the end of the high-voltage cable, and remove the sheath of the cable core at the same time, insert the cable core into the through hole, and the cable core enters the cable groove. The part where the cable sheath of the high-voltage cable is removed is stuck on the end face of the blocking plate. The support sleeve supports the cables on both sides, and the outer rotating cylinder hardens the connection to prevent the cable connection from shaking in the vertical direction along the cable axis. 2. The outer rotating cylinder rotates, the internal thread cooperates with the external thread, and the transmission rings on both sides move in opposite directions. The transmission ring drives the sliding block, the linkage shaft and the linkage block to move toward the sleeve. The linkage block pushes the pressing bar along the pressing groove into the sleeve. Under the action of the pressing groove, the pressing bar presses down the cable core and fixes the cable core in the cable groove. 3. During the movement of the transmission ring, it pushes the limit push block to move, and the limit push block pushes the push plate to rotate counterclockwise. The push plate drives the elastic rubber block to press down the cable surface, and the support sleeve and the cable surface remain fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a high-voltage cable quick connector proposed by the present invention; Figure 2 Schematic diagram of the three-dimensional structure inside the outer rotating cylinder; Figure 3 It is a cross-sectional view of the fixed head, axial transmission assembly and wire core pressing assembly; Figure 4 Schematic diagram of the three-dimensional structure of the fixed head; Figure 5 Schematic diagram of the three-dimensional structure of the sleeve; Figure 6 This is a schematic diagram of the front three-dimensional structure of the wire core compression assembly; Figure 7 This is a schematic diagram of the reverse three-dimensional structure of the wire core compression assembly; Figure 8 A schematic diagram of the three-dimensional structure for installing the central axis; Figure 9 It is a cross-sectional diagram of the installation center axis where the top plate is located; Figure 10 for Figure 2 Enlarged view of part A.

[0017] Among them, 1. Install the central axis, 2. Rubber insulation core, 3. Insulation layer, 4. Cable groove, 5. Fixed head, 6. Support sleeve, 7. Blocking plate, 8. Through hole, 9. Sleeve, 10. External rotating cylinder, 11. Axial transmission assembly, 12. Wire core clamping assembly, 13. Surface clamping assembly, 14. Internal thread, 15. Moving ring, 16. Transmission ring, 17. Sliding block, 18. Limit push block, 19. Linkage shaft, 20. External thread, 21. Ring groove, 22. Limit slide groove, 23. Clamping bar, 24. Linkage block, 25. Top plate, 26. Compression spring, 27. Clamping groove, 28. Mounting hole, 29. Elastic rubber block, 30. Push plate, 31. Rotating shaft, 32. Transmission groove, 33. Rotating ring, 34. Connecting rib, 35. Card slot, 36. Cable core, 37. Cable skin.

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0021] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown, the present invention proposes a high-voltage cable quick connector, including an installation center axis 1, the center of the installation center axis 1 is a rubber insulating core 2, the installation center axis 1 is divided into multiple parts by an insulating layer 3 around the axial direction, the outer walls of both ends of the installation center axis 1 are respectively provided with cable grooves 4 around the axial array, and the two ends of the installation center axis 1 are provided with fixed heads 5, the fixed head 5 is composed of a support sleeve 6 and a blocking plate 7, the blocking plate 7 is arranged at the end of the support sleeve 6, and the end face of the blocking plate 7 is penetrated by a through hole 8 around the axial array, and the through hole 8 is arranged corresponding to the cable groove 4, the end of the fixed head 5 is provided with a sleeve 9, and the outer side of the sleeve 9 and the fixed head 5 is rotatably provided with an outer rotating cylinder 10, the middle inner wall of the outer rotating cylinder 10 is symmetrically provided with an axial transmission assembly 11, the inner end of the sleeve 9 is provided with a wire core pressing assembly 12, and the end of the fixed head 5 is provided with a surface pressing assembly 13.

[0022] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 As shown, the axial transmission assembly 11 includes an internal thread 14, a moving ring 15, a transmission ring 16, a sliding block 17, a limit push block 18 and a linkage shaft 19. The internal thread 14 is symmetrically arranged at the middle part of the inner wall of the outer rotating cylinder 10. The transmission ring 16 is arranged on the inner wall of the outer rotating cylinder 10. The outer wall of the transmission ring 16 is provided with an external thread 20. The internal thread 14 cooperates with the external thread 20. The inner wall of the transmission ring 16 is provided with an annular groove 21. The moving ring 15 is sleeved on the mounting shaft 1. The moving ring 15 It can slide on the installation center axis 1, and the linkage shaft 19 is arranged between the movable ring 15 and the transmission ring 16 around the axis array. One end of the linkage shaft 19 is fixed on the outer wall of the movable ring 15, and the sliding block 17 is arranged at the other end of the linkage shaft 19. The sliding block 17 is slidably arranged in the ring groove 21. The outer walls of the fixed head 5 and the sleeve 9 are provided with a limiting groove 22 around the axis array. One end of the limiting push block 18 is arranged on the end face of the transmission ring 16, and the limiting push block 18 is slidably arranged in the limiting groove 22.

[0023] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7As shown, the wire core pressing assembly 12 includes a pressing strip 23, a linkage block 24, a top plate 25 and a pressing spring 26. The inner wall of the sleeve 9 is provided with a pressing groove 27, and the pressing groove 27 is gradually inclined toward the center from the outside to the inside. The outer wall of the installation center axis 1 is provided with a mounting hole 28 around the axis array, and the compression spring 26 is arranged on the inner bottom wall of the mounting hole 28. The top plate 25 is slidably arranged in the mounting hole 28, one end of the top plate 25 is arranged on the compression spring 26, and the linkage block 24 is slidably arranged on the linkage shaft 19. The pressing strip 23 is arranged in a right-angled triangle, and the lower wall of the pressing strip 23 is arranged in an arc shape. The outer end of the pressing strip 23 is arranged on the linkage block 24, and the pressing strip 23 is slidably arranged on the outer end surface of the top plate 25. Under the action of the compression spring 26, the inclined surface of the pressing strip 23 is always in contact with the pressing groove 27.

[0024] like Figure 1 、 Figure 2 、 Figure 10 As shown, the epidermis pressing assembly 13 includes an elastic rubber block 29, a push plate 30 and a rotating shaft 31. A transmission groove 32 is provided at the limiting slide groove 22 at the end of the support sleeve 6. The rotating shaft 31 is arranged on the inner side wall of the transmission groove 32. The push plate 30 is rotated on the rotating shaft 31 through a torsion spring, and the elastic rubber block 29 is arranged at the lower end of the push plate 30.

[0025] like Figure 2 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 As shown, the lower wall of the pressing strip 23 is concave, and the upper end surface of the top plate 25 is convex.

[0026] like Figure 6 、 Figure 7 As shown, the outer end surface of the sliding block 17 is arc-shaped, and the outer end surface of the sliding block 17 is matched with the inner wall of the groove of the moving ring 15.

[0027] like Figure 2 、 Figure 8 As shown, a rotating ring 33 is rotatably provided in the middle of the mounting center shaft 1 , and the rotating ring 33 is fixed to the inner wall of the outer rotating cylinder 10 via connecting ribs 34 .

[0028] like Figure 1 As shown, a clamping groove 35 is provided in the middle of the outer wall of the outer rotating cylinder 10 .

[0029] When in use, the cable sheath 37 of the end of the high-voltage cable to be connected is removed according to the size, and the sheath of the cable core 36 is removed at the same time. Then the cable core 36 is inserted into the through hole 8, and the cable core 36 enters the cable groove 4. The portion where the cable sheath 37 of the high-voltage cable is removed is stuck on the end face of the blocking plate 7, and then a wrench is used to clamp it in the slot 35. The wrench is turned, the outer rotating cylinder 10 is rotated, the internal thread 14 is matched with the external thread 20, and the transmission rings 16 on both sides move in the opposite direction. The transmission ring 16 drives the sliding block 17, the linkage shaft 19 and the linkage block 24 to move toward the sleeve 9, and the linkage block 24 pushes The dynamic pressing strip 23 enters the sleeve 9 along the pressing groove 27. Under the action of the pressing groove 27, the pressing strip 23 presses the cable core 36 downward to fix the cable core 36 in the cable groove 4. At the same time, the pressing strip 23 presses down the top plate 25. The top plate 25 compresses the pressing spring 26. During the movement of the transmission ring 16, the limit push block 18 is pushed to move. The limit push block 18 pushes the push plate 30 to rotate counterclockwise. The push plate 30 drives the elastic rubber block 29 to press down the cable skin 37. The support sleeve 6 and the cable skin 37 remain fixed. At this time, different cable cores 36 are electrically connected through the installation center shaft 1. When disassembly is required, use a wrench to rotate the outer rotating cylinder 10 in the opposite direction, and the transmission rings 16 on both sides move toward each other. The transmission ring 16 drives the sliding block 17, the linkage shaft 19 and the linkage block 24 to move away from the sleeve 9, and the linkage block 24 drives the clamping bar 23 to slide out of the sleeve 9. At the same time, the compression spring 26 pushes the top plate 25 upward, and the top plate 25 pushes the clamping bar 23 upward, and the clamping bar 23 is separated from the cable core 36. At the same time, the transmission ring 16 drives the limiting push block 18 to move, and the limiting push block 18 is separated from the push plate 30. Under the action of the torsion spring, the push plate 30 rotates clockwise, and the push plate 30 drives the elastic rubber block 29 to separate from the cable skin 37, and the cable can be pulled out.

[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0031] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

[0032] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A high-voltage cable quick connector, comprising a mounting center shaft (1), characterized in that: The center of the installation center axis (1) is a rubber insulating core (2), and the installation center axis (1) is divided into multiple parts by an insulating layer (3) around the axis direction. The outer walls of both ends of the installation center axis (1) are respectively provided with cable grooves (4) around the axis array. The two ends of the installation center axis (1) are provided with fixed heads (5), and the fixed head (5) is composed of a support sleeve (6) and a blocking plate (7). The blocking plate (7) is arranged at the end of the support sleeve (6). The end surface of the blocking plate (7) is provided with a through hole (8) around the axis array. The through hole (8) is arranged corresponding to the cable groove (4). The end of the fixed head (5) is provided with a sleeve (9), and the outer side of the sleeve (9) and the fixed head (5) is provided with an outer rotating cylinder (10). The middle inner wall of the outer rotating cylinder (10) is symmetrically provided with an axial transmission component (11), the inner end of the sleeve (9) is provided with a wire core pressing component (12), and the end of the fixed head (5) is provided with a surface pressing component (13).

2. A high-voltage cable quick connector according to claim 1, characterized in that: The axial transmission assembly (11) includes an internal thread (14), a moving ring (15), a transmission ring (16), a sliding block (17), a limit push block (18) and a linkage shaft (19), wherein the internal thread (14) is symmetrically arranged at the middle of the inner wall of the outer rotating cylinder (10), the transmission ring (16) is arranged on the inner wall of the outer rotating cylinder (10), the outer wall of the transmission ring (16) is provided with an external thread (20), the internal thread (14) cooperates with the external thread (20), the inner wall of the transmission ring (16) is provided with an annular groove (21), the moving ring (15) is sleeved on the mounting center shaft (1), the moving ring (1 5) can slide on the installation center axis (1), the linkage shaft (19) is arranged between the moving ring (15) and the transmission ring (16) around the axis array, one end of the linkage shaft (19) is fixedly arranged on the outer wall of the moving ring (15), the sliding block (17) is arranged on the other end of the linkage shaft (19), the sliding block (17) is slidably arranged in the ring groove (21), the outer walls of the fixed head (5) and the sleeve (9) are provided with a limiting sliding groove (22) around the axis array, one end of the limiting push block (18) is arranged on the end face of the transmission ring (16), and the limiting push block (18) is slidably arranged in the limiting sliding groove (22).

3. A high-voltage cable quick connector according to claim 2, characterized in that: The core pressing assembly (12) includes a pressing bar (23), a linkage block (24), a top plate (25) and a pressing spring (26). The inner wall of the sleeve (9) is provided with a pressing groove (27), and the pressing groove (27) is gradually inclined toward the center from the outside to the inside. The outer wall of the mounting center axis (1) is provided with mounting holes (28) around the axis array. The pressing spring (26) is provided on the inner bottom wall of the mounting hole (28). The top plate (25) is slidably provided in the mounting hole (28). One end of the plate (25) is provided on the compression spring (26), the linkage block (24) is slidably provided on the linkage shaft (19), the compression strip (23) is provided in a right triangle shape, the lower wall of the compression strip (23) is provided in an arc shape, the outer end of the compression strip (23) is provided on the linkage block (24), the compression strip (23) is slidably provided on the outer end surface of the top plate (25), and under the action of the compression spring (26), the inclined surface of the compression strip (23) is always in contact with the compression groove (27).

4. A high-voltage cable quick connector according to claim 3, characterized in that: The skin pressing assembly (13) includes an elastic rubber block (29), a push plate (30) and a rotating shaft (31); a transmission groove (32) is provided at the limiting slide groove (22) at the end of the support sleeve (6); the rotating shaft (31) is provided on the inner side wall of the transmission groove (32); the push plate (30) is rotated on the rotating shaft (31) through a torsion spring; and the elastic rubber block (29) is provided at the lower end of the push plate (30).

5. A high-voltage cable quick connector according to claim 4, characterized in that: The lower wall of the pressing strip (23) is concave, and the upper end surface of the top plate (25) is convex.

6. A high-voltage cable quick connector according to claim 5, characterized in that: The outer end surface of the sliding block (17) is arc-shaped, and the outer end surface of the sliding block (17) is matched with the inner wall of the groove of the moving ring (15).

7. A high-voltage cable quick connector according to claim 6, characterized in that: A rotating ring (33) is rotatably provided in the middle of the mounting center shaft (1), and the rotating ring (33) is fixed to the inner wall of the outer rotating cylinder (10) via connecting ribs (34).

8. The high-voltage cable quick connector according to claim 7, characterized in that: A clamping groove (35) is provided in the middle of the outer wall of the outer rotating cylinder (10).

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