A wind power transmission cable

Abstract

This application relates to the technical field of cables and discloses a wind power transmission cable, including a cable body, a first part and a second part mounted on the cable body, the first part and the second part being connected and located on both sides of the connection point of the cable body; the first part includes a first seat and a first cylinder mounted on the cable body, the first cylinder having a cavity and the first seat located within the first cylinder; the second part includes a second seat and a second cylinder connected to the cable body, the second cylinder having a cavity and the second seat located within the second cylinder. This application can improve the tensile strength when the cable bodies are connected together.

Description

Technical Field

[0001] This application relates to the technical field of cables, and in particular to a wind power transmission cable. Background Technology

[0002] Wind energy, a type of usable energy generated by the work done by air currents, is a renewable energy source. Therefore, wind power generation projects are becoming increasingly common. During wind energy transmission, wind power transmission cables are needed to transmit the generated electricity. These cables are typically installed in harsh environments, requiring high resistance to tensile and torsional forces.

[0003] The existing patent document with authorization announcement number CN215528059U discloses a power transmission cable for wind power generation, including a cable body and a first connecting part and a second connecting part installed on the cable body. The first connecting part and the second connecting part are connected together by multiple screws, thereby improving the stability of the connection between the two cables.

[0004] Although the stability of the cable connection is enhanced by the first and second connecting parts, it is still prone to loosening over time under tensile force, and the stability needs to be further improved. Summary of the Invention

[0005] To further improve the connection stability at cable joints, this application provides a wind power transmission cable.

[0006] The technical solution adopted in this application is as follows: A wind power transmission cable includes a cable body, a first part and a second part mounted on the cable body, the first part and the second part being connected and located on both sides of the connection point of the cable body; the first part includes a first seat and a first cylinder mounted on the cable body, the first cylinder having a cavity and the first seat located within the first cylinder; the second part includes a second seat and a second cylinder connected to the cable body, the second cylinder having a cavity and the second seat located within the second cylinder; when the cable bodies are connected, the first seat and the second seat are connected, the first cylinder and the second cylinder are connected, and positioning elements are mounted on both the first cylinder and the second cylinder; when the first cylinder and the second cylinder are connected, the positioning element on the first cylinder abuts against the side of the second seat opposite to the first cylinder, and the positioning element on the second cylinder abuts against the side of the first seat opposite to the second cylinder.

[0007] By adopting the above technical solution, when the cable bodies are connected together, the first seat and the second seat are connected together, the first cylinder and the second cylinder are connected together, and the first seat and the second seat are in the inner cavity formed by the first cylinder and the second cylinder; the first cylinder abuts against the side of the second seat opposite to the first seat through the positioning member, and the second cylinder abuts against the side of the first seat opposite to the second seat through the positioning member. When the connection of the cable bodies is subjected to a pulling force to both sides, the two positioning members drive the first seat and the second seat to abut against each other, thereby improving the stability of the connection of the cable bodies.

[0008] Optionally, the positioning element includes an extension rod mounted on one side of the first cylinder and the second cylinder opposite to each other, and a positioning post slidably mounted on the extension rod. The extension rod extends along the length direction parallel to the cable body, and the positioning post slides along the radial direction of the cable body. A first elastic element is provided between the positioning post and the extension rod. Under the action of the first elastic element, the upper end of the positioning post extends beyond the extension rod and faces away from the cable body. When the first cylinder and the second cylinder are connected, the first cylinder and the second cylinder rotate relative to each other, which can drive the positioning post to slide towards the cable body, and the first seat and the second seat are clamped between the positioning post.

[0009] By adopting the above technical solution, when the first cylinder and the second cylinder are connected together, the two rotate relative to each other and drive the positioning column to slide, so that the positioning column abuts against the side wall of the first seat and the second seat, thereby clamping the first seat and the second seat between the positioning column.

[0010] Optionally, both the first cylinder and the second cylinder have relief grooves on their inner walls for the end of the positioning post to move. The inner wall of the opposite end of the relief groove is provided with an inclined surface. When the first cylinder and the second cylinder rotate, the end of the positioning post can be pressed against the inclined surface and slide towards the cable body. At this time, the first elastic element is in a compressed state.

[0011] By adopting the above technical solution, when the first and second cylinders rotate, the positioning column is pressed against the inclined surface, thereby driving the positioning column to slide.

[0012] Optionally, both the first cylinder and the second cylinder have insertion grooves on their inner walls. The insertion grooves are connected to the inclined surface. When the positioning post moves to the insertion groove, under the action of the first elastic element, the end of the positioning post can be inserted into the insertion groove.

[0013] By adopting the above technical solution, the end of the positioning column is inserted into the insertion groove, thereby connecting the first cylinder and the second cylinder together.

[0014] Optionally, the first seat has a stepped groove, and the second seat has a plug-in block that can be inserted into the stepped groove. The first seat has a threaded component threadedly connected to its side wall. The threaded component passes through the first seat and is threadedly connected to the plug-in block.

[0015] By adopting the above technical solution, the first seat and the second seat are connected together under the action of the threaded parts.

[0016] Optionally, a collar is provided on the outer wall of the cable body, and the first cylinder and the second cylinder are respectively sleeved on the outer wall of the collar. A limiting ring is provided at one end of the collar that is close to each other. When the first cylinder and the second cylinder are connected together, the limiting ring abuts against the inner end face of the first cylinder and the second cylinder respectively, and locking members for positioning the first cylinder and the second cylinder are installed on both the first cylinder and the second cylinder.

[0017] By adopting the above technical solution, the first cylinder and the second cylinder are sleeved on the outer wall of the collar, which facilitates the connection of the first cylinder and the second cylinder. After they are connected, the first cylinder and the second cylinder are positioned by the locking member, so that the first cylinder and the second cylinder are not easy to shift.

[0018] Optionally, both the first and second seats are provided with sliding grooves, and a rod is slidably connected in each sliding groove. A reset component is installed between the sliding groove and the rod. One end of the rod is connected to a trigger component. When the first and second cylinders rotate relative to each other to make the positioning post slide, the positioning post can drive the rod to slide through the trigger component, so that the rod on the first seat is inserted into the second seat, and the rod on the second seat is inserted into the first seat.

[0019] By adopting the above technical solution, when the first and second cylinders are connected together, the plug can be inserted into the first and second seats, thereby improving the stability of the connection between the first and second seats and reducing the deformation of the first and second seats when the cable body is twisted.

[0020] Optionally, the triggering element includes a trigger ring, one end of the insertion rod is connected to the trigger ring, and both the first and second seats are provided with receiving grooves for accommodating the trigger ring. The sidewall of the trigger ring is inclined. When the positioning post moves toward the cable body, the end of the positioning post can abut against the trigger ring and drive the trigger ring to slide into the receiving groove, and simultaneously drive the insertion rod to slide. At this time, the return element is in a compressed state.

[0021] By adopting the above technical solution, the positioning pin abuts against the trigger ring, thereby pushing the insertion rod to slide.

[0022] Optionally, both the first and second seats are provided with through grooves communicating with the sliding groove. A sliding block is slidably installed in the through groove, and a second elastic element is connected between the sliding block and the inner wall of the through groove. An arc groove is provided on the side wall of the insertion rod. Under the action of the second elastic element, the end of the sliding block abuts in the arc groove. A locking groove is provided on the extension rod. When the insertion rod slides, the end of the sliding block can be locked in the locking groove.

[0023] By adopting the above technical solution, when the first cylinder and the second cylinder are connected together, the sliding block is engaged in the slot, thereby improving the stability of the first and second seats respectively when subjected to tensile force, thus improving the pull-out resistance.

[0024] In summary, this application includes at least one of the following beneficial effects: 1. The first seat and the second seat are connected together, the first tube and the second tube are connected together, and under the action of the positioning element, the pull-out resistance of the cable body is improved; 2. When the first and second cylinders are connected together, the sliding block can be engaged in the slot, thereby improving the stability of the connection between the extension rod and the first and second seats. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a cross-sectional schematic diagram of an embodiment of this application; Figure 3 This is an explosion diagram of the first and second cylinders in an embodiment of this application; Figure 4 This is a schematic diagram illustrating the inclined surface in an embodiment of this application; Figure 5 yes Figure 2 Enlarged diagram of point A in the middle.

[0026] Explanation of reference numerals in the attached drawings: 1. Cable body; 2. First part; 201. First seat; 202. First cylinder; 3. Second part; 301. Second seat; 302. Second cylinder; 4. Positioning element; 41. Extension rod; 42. Positioning post; 43. First elastic element; 5. Drop groove; 6. Relief groove; 7. Long groove; 8. Inclined surface; 9. Insertion groove; 10. Stepped groove; 11. Insertion block; 12. Threaded element; 13. Collar; 14. Limiting ring; 15. Locking element; 16. Sliding groove; 17. Insertion rod; 18. Reset element; 19. Trigger element; 20. Receiving groove; 21. Through groove; 22. Sliding block; 23. Arc groove; 24. Second elastic element; 25. Card slot; 26. Square groove. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0028] This application discloses a wind power transmission cable, referring to... Figure 1 and Figure 2 It includes a cable body 1, a first part 2 and a second part 3 installed on the cable body 1. The first part 2 and the second part 3 are respectively installed on both sides of the connection of the cable body 1, and when the cable bodies 1 are connected together, the first part 2 and the second part 3 are connected together.

[0029] Reference Figure 2 The first part 2 includes a first seat 201 and a first cylinder 202 mounted on the cable body 1, and the second part 3 includes a second seat 301 and a second cylinder 302 mounted on the cable body 1. Both the first cylinder 202 and the second cylinder 302 are cylindrical structures with hollow interiors, and their openings are positioned opposite each other. The first seat 201 is located inside the cavity of the first cylinder 202, and the second seat 301 is located inside the cavity of the second cylinder 302. When the first seat 201 and the second seat 301 are connected together, the first cylinder 202 and the second cylinder 302 are also connected together. When connected together, there is a certain gap between the inner end face of the first cylinder 202 and the end face of the first seat 202, and a gap between the inner end face of the second cylinder 302 and the end face of the second seat 301.

[0030] The first seat 201 has a stepped groove 10, and the second seat 301 has a plug-in block 11 extending toward the first seat 201. The stepped groove 10 and the plug-in block 11 are compatible, and when the first seat 201 and the second seat 301 are connected together, the plug-in block 11 can be inserted into the stepped groove 10. A threaded component 12, which is a bolt, is also threaded onto the side wall of the first seat 201. The bolt passes through the first seat 201 and is threaded onto the plug-in block 11, thereby connecting the first seat 201 and the second seat 301 together. Multiple bolts are provided, spaced apart circumferentially along the first seat 201, thereby improving the stability of the connection between the first seat 201 and the second seat 301.

[0031] Reference Figure 2Two collars 13 are installed on the outer wall of the cable body 1, corresponding to the first cylinder 202 and the second cylinder 302 respectively. The first cylinder 202 and the second cylinder 302 are fitted onto the outer wall of the collars 13. A limiting ring 14 is coaxially fixed to the outer wall of the two collars 13 at their closest ends. The outer diameter of the limiting ring 14 is the same as the inner diameter of the first cylinder 202 and the second cylinder 302, so that the limiting ring 14 can abut against the inner wall of the first cylinder 202. When the first cylinder 202 and the second cylinder 302 are connected together, the end faces of the first cylinder 202 and the second cylinder 302 abut against each other, and the limiting ring 14 abuts against the inner top surface of the first cylinder 202 or the second cylinder 302. Furthermore, locking elements 15 are installed on the end faces of the first cylinder 202 and the second cylinder 302. The locking elements 15 are bolts, which pass through the end face of the first cylinder 202 or the second cylinder 302 and are threaded onto the limiting ring 14. Multiple locking elements 15 are provided to improve the positioning effect of the first cylinder 202 and the second cylinder 302.

[0032] Reference Figure 2 and Figure 3 Positioning elements 4 are installed on both the first cylinder 202 and the second cylinder 302. When the first cylinder 202 and the second cylinder 302 are connected, the positioning element 4 on the first cylinder 202 can abut against the side of the second seat 301 opposite to the first cylinder 202, and the positioning element 4 on the second cylinder 302 can abut against the side of the first seat 201 opposite to the second cylinder 302, thereby clamping the first seat 201 and the second seat 301 between the two positioning elements 4. When the cable body 1 is subjected to tension, the first cylinder 202 and the second cylinder 302 tend to move away from each other, but under the action of the positioning elements 4, the first seat 201 and the second seat 301 are driven to abut against each other, thereby improving the stability of the connection of the cable body 1.

[0033] In a further embodiment, the positioning member 4 includes an extension rod 41 fixed to one side of the first cylinder 202 and the second cylinder 302 opposite to each other, and a positioning post 42 slidably mounted on the extension rod 41. Three extension rods 41 are fixed to the side of the first cylinder 202 and the second cylinder 302 that are close to each other. The end of the extension rod 41 is provided with a positioning groove 5, and the positioning post 42 is slidably mounted in the positioning groove 5, and the sliding direction of the positioning post 42 is parallel to the radial direction of the cable body 1. A first elastic member 43 is installed between the positioning post 42 and the extension rod 41. The first elastic member 43 is a spring, and the upper end of the positioning groove 5 is flared. The first elastic member 43 is located at the flared position of the thread groove. One end of the first elastic member 43 is connected to the inner wall of the positioning groove 5, and the other end is connected to the side wall of the positioning post 42. When the first elastic member 43 is in its natural state, the end of the positioning post 42 has a portion that extends beyond the surface of the extension rod 41.

[0034] Reference Figure 3 and Figure 4The inner walls of the first cylinder 202 and the second cylinder 302 are provided with relief grooves 6. When the end faces of the first cylinder 202 and the second cylinder 302 abut together, the extension rod 41 can slide in the relief groove 6. The size of the relief groove 6 is larger than that of the extension rod 41, and the relief groove 6 is provided with a long groove 7 for the end of the positioning post 42 to move. That is, when the extension rod 41 is inserted into the relief groove 6, the end of the positioning rod moves in the long groove 7. The inner wall of the relief groove 6 is also provided with an inclined surface 8, which is connected to the end of the long groove 7. When the end faces of the first cylinder 202 and the second cylinder 302 abut together, the first cylinder 202 and the second cylinder 302 rotate relative to each other, so that the extension rod 41 moves in the relief groove 6, and the end face of the positioning post 42 can abut against the inclined surface 8, so that the positioning post 42 slides towards the cable body 1, the first elastic element 43 is compressed, and the end of the positioning post 42 abuts against the end faces of the first seat 201 and the second seat 301, thereby realizing that the positioning post 42 abuts against the opposite side of the first seat 201 and the second seat 301 respectively.

[0035] Furthermore, both the first cylinder 202 and the second cylinder 302 have insertion grooves 9 on their inner walls. The insertion grooves 9 are connected to the inclined surface 8. When the positioning post 42 moves to the position of the insertion groove 9, under the action of the first elastic element 43, the end of the positioning post 42 abuts in the insertion groove 9. The insertion groove 9 only needs to be shallow, making it easier to control the rotation range of the first cylinder 202 and the second cylinder 302.

[0036] Reference Figure 3 and Figure 5 In a further embodiment, both the first seat 201 and the second seat 301 are provided with sliding grooves 16, and a rod 17 is slidably connected in the sliding groove 16. The sliding direction of the rod 17 is parallel to the axial direction of the first seat 201. When the rod 17 on the second seat 301 slides, it can be inserted into the first seat 201, and the rod 17 on the first seat 201 can be inserted into the second seat 301. Under the action of the rod 17, the torsion of the first seat 201 and the second seat 301 is reduced. The sliding grooves 16 and the rods 17 correspond to each other, and multiple sliding grooves 16 can be provided at intervals. A reset member 18 is installed between the sliding groove 16 and the rod 17. The reset member 18 is a spring, and one end of the sliding groove 16 is flared. The reset member 18 is located at the flared position of the sliding groove 16. One end of the reset member 18 is connected to the inner wall of the slide groove 16, and the other end is connected to the insertion rod 17. In its natural state, the insertion rod 17 has not yet connected the first seat 201 and the second seat 301 together. A trigger member 19 is connected to the insertion rod 17. When the positioning post 42 is pressed against the inclined surface 8 and slides towards the cable body 1, the positioning post 42 can drive the insertion rod 17 to slide through the trigger member 19, thereby achieving the effect of inserting the insertion rod 17 into the first seat 201 or the second seat 301.

[0037] Reference Figure 5 The trigger element 19 includes two trigger rings. The insertion rod 17 on the first seat 201 is connected to the same trigger ring, and the insertion rod 17 on the second seat 301 is also connected to the same trigger ring. A receiving groove 20 is formed on the opposite side of the first seat 201 and the second seat 301, in which the trigger ring can be accommodated. The outer wall of the trigger ring is inclined. When the positioning pin 42 slides, it abuts against the side wall of the trigger ring and drives the trigger ring to slide into the receiving groove 20, thereby pushing the insertion rod 17 to slide. At this time, the reset element 18 is compressed.

[0038] Reference Figure 4 and Figure 5 In a further embodiment, both the first seat 201 and the second seat 301 are provided with through slots 21, which correspond one-to-one with sliding grooves 16 and are connected to each other, extending to the surface of the first seat 201 or the second seat 301. The through slots 21 extend radially along the cable body 1. A sliding block 22 is slidably installed in the through slot 21, and a second elastic element 24 is installed between the sliding block 22 and the through slot 21. An arc groove 23 is provided on the side wall of the insertion rod 17. Under the action of the second elastic element 24, the end of the sliding block 22 abuts against the arc groove 23. When the insertion rod 17 slides, it can drive the sliding block 22 to slide upward. A locking groove 25 is provided on the extension rod 41. The locking groove 25 is adapted to the sliding block 22. After the sliding block 22 slides upward, it can be locked into the locking groove 25. Therefore, when subjected to tension, the sliding block 22 can also restrict the sliding of the extension rod 41, thereby improving the pull-out resistance.

[0039] Furthermore, the second elastic element 24 is also a spring, and a square groove 26 is provided on the inner wall of the through groove 21. The second elastic element 24 is installed in the square groove 26, and part of the side wall of the sliding block 22 extends into the square groove 26.

[0040] The implementation principle of a wind power transmission cable according to an embodiment of this application is as follows: the first base 201 and the second base 301 are connected together, the first tube 202 and the second tube 302 are connected together, and the positioning post 42 is clamped between the first base 201 and the second base 301, so that when subjected to tension, the positioning post 42 drives the first base 201 and the second base 301 to abut against each other, thereby improving the stability of the cable body 1 connection.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A wind power transmission cable, characterized in that: The cable includes a cable body (1), a first part (2) and a second part (3) mounted on the cable body (1), the first part (2) and the second part (3) being connected and located on both sides of the connection point of the cable body (1); the first part (2) includes a first seat (201) and a first cylinder (202) mounted on the cable body (1), the first cylinder (202) having a cavity and the first seat (201) being located in the first cylinder (202); the second part (3) includes a second seat (301) and a second cylinder (302) connected to the cable body (1), the second cylinder (302) having a cavity and the second seat (301) being located in the second cylinder (202). In the second cylinder (302); when the cable bodies (1) are connected, the first seat (201) and the second seat (301) are connected, the first cylinder (202) and the second cylinder (302) are connected, and positioning parts (4) are installed on both the first cylinder (202) and the second cylinder (302). When the first cylinder (202) and the second cylinder (302) are connected, the positioning part (4) on the first cylinder (202) abuts against the side of the second seat (301) away from the first cylinder (202), and the positioning part (4) on the second cylinder (302) abuts against the side of the first seat (201) away from the second cylinder (302). The positioning component (4) includes an extension rod (41) installed on the opposite side of the first cylinder (202) and the second cylinder (302) and a positioning post (42) slidably installed on the extension rod (41). The extension rod (41) extends along the length direction parallel to the cable body (1), and the positioning post (42) slides along the radial direction of the cable body (1). A first elastic element (43) is provided between the positioning post (42) and the extension rod (41). Under the action of the first elastic element (43), the upper end of the positioning post (42) extends beyond the extension rod (41) and is away from the cable body (1). When the first cylinder (202) and the second cylinder (302) are connected, the first cylinder (202) and the second cylinder (302) rotate relative to each other, which can drive the positioning post (42) to slide towards the cable body (1), and the first seat (201) and the second seat (301) are clamped between the positioning post (42).

2. The wind power transmission cable according to claim 1, characterized in that: The inner walls of the first cylinder (202) and the second cylinder (302) are provided with relief grooves (6) for the end of the positioning post (42) to move. An inclined surface (8) is provided on the inner wall of the end of the relief groove (6) that is far away from each other. When the first cylinder (202) and the second cylinder (302) rotate, the end of the positioning post (42) can be pressed against the inclined surface (8) and slide towards the cable body (1). At this time, the first elastic element (43) is in a compressed state.

3. A wind power transmission cable according to claim 2, characterized in that: Both the first cylinder (202) and the second cylinder (302) have insertion grooves (9) on their inner walls. The insertion grooves (9) are connected to the inclined surface (8). When the positioning post (42) moves to the insertion groove (9), under the action of the first elastic member (43), the end of the positioning post (42) can be inserted into the insertion groove (9).

4. A wind power transmission cable according to claim 3, characterized in that: The first seat (201) is provided with a stepped groove (10), and the second seat (301) is provided with a plug-in block (11). The plug-in block (11) can be inserted into the stepped groove (10), and a threaded part (12) is threadedly connected to the side wall of the first seat (201). The threaded part (12) passes through the first seat (201) and is threadedly connected to the plug-in block (11).

5. A wind power transmission cable according to claim 4, characterized in that: A collar (13) is provided on the outer wall of the cable body (1). The first cylinder (202) and the second cylinder (302) are respectively sleeved on the outer wall of the collar (13). A limiting ring (14) is provided at one end of the collar (13) that is close to each other. When the first cylinder (202) and the second cylinder (302) are connected together, the limiting ring (14) abuts against the inner end face of the first cylinder (202) and the second cylinder (302) respectively. Locking members (15) for positioning the first cylinder (202) and the second cylinder (302) are installed on both the first cylinder (202) and the second cylinder (302).

6. A wind power transmission cable according to claim 5, characterized in that: Both the first seat (201) and the second seat (301) are provided with sliding grooves (16), and each sliding groove (16) is slidably connected with a rod (17). A reset member (18) is installed between the sliding groove (16) and the rod (17). One end of the rod (17) is connected to a trigger member (19). When the first cylinder (202) and the second cylinder (302) rotate relative to each other so that the positioning post (42) slides, the positioning post (42) can drive the rod (17) to slide through the trigger member (19), so that the rod (17) on the first seat (201) is inserted into the second seat (301), and the rod (17) on the second seat (301) is inserted into the first seat (201).

7. A wind power transmission cable according to claim 6, characterized in that: The trigger (19) includes a trigger ring, one end of the plug (17) is connected to the trigger ring, and the first seat (201) and the second seat (301) are both provided with receiving grooves (20) for accommodating the trigger ring. The side wall of the trigger ring is inclined. When the positioning post (42) moves toward the cable body (1), the end of the positioning post (42) can abut against the trigger ring and drive the trigger ring to slide into the receiving groove (20), and simultaneously drive the plug (17) to slide. At this time, the reset member (18) is in a compressed state.

8. A wind power transmission cable according to claim 7, characterized in that: Both the first seat (201) and the second seat (301) are provided with through grooves (21) that communicate with the sliding groove (16). A sliding block (22) is slidably installed in the through groove (21), and a second elastic element (24) is connected between the sliding block (22) and the inner wall of the through groove (21). An arc groove (23) is provided on the side wall of the insertion rod (17). Under the action of the second elastic element (24), the end of the sliding block (22) abuts against the arc groove (23). A slot (25) is provided on the extension rod (41). When the insertion rod (17) slides, the end of the sliding block (22) can be engaged in the slot (25).

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