An outdoor photovoltaic cable

Abstract

This utility model discloses an outdoor photovoltaic cable, including a cable with a protective device on its outer side. The protective device includes a connecting sleeve, a fixing sleeve, and a protective tube. The connecting sleeve is threaded onto the outside of the fixing sleeve, and the protective tube is sleeved on the outside of the cable. A fixing device is connected to one side of the connecting sleeve. The fixing device includes a rotating sleeve, a clamping sleeve, a sliding groove, a linkage groove, a linkage block, a pushing sleeve, a sliding block, a sliding plate, and a mating sleeve. The sliding groove is located inside the clamping sleeve, the linkage groove is located on the pushing sleeve, the linkage block is connected to one side of the sliding block, the pushing sleeve is located inside the clamping sleeve, the sliding block is connected to one side of the sliding plate, and the mating sleeve is threaded onto the rotating sleeve. A reinforcing mechanism is installed on the outside of the clamping sleeve. The reinforcing mechanism includes a locking sleeve, a moving groove, a locking groove, a locking rod, a locking block, and a return spring. Multiple locking grooves are located in the moving groove. This utility model solves the problems of insufficient protection, difficult fixing, and lack of stability of traditional outdoor photovoltaic cables.

Description

Technical Field

[0001] This utility model relates to the field of outdoor photovoltaic cable technology, and more specifically, to an outdoor photovoltaic cable. Background Technology

[0002] In the field of photovoltaic power generation, outdoor photovoltaic cables are a key component of system operation, and their protective performance and adaptability directly affect the safety and reliability of the power generation system. However, there are still many technical defects in the outdoor photovoltaic cables currently on the market in practical applications. These problems not only affect the stability of system operation, but may also bring safety hazards.

[0003] The primary problem is insufficient protection. Existing outdoor photovoltaic cables have significant defects: First, the cables lack an effective external protective structure, making them susceptible to corrosion from natural factors such as rain and sunlight; second, existing protective devices are often too rigid and cannot adapt to the bending and deformation of the cables; third, rigid protective structures limit the cable laying path; in addition, the inflexibility of the protective structure not only affects installation efficiency but may also lead to cable damage. This design deficiency not only reduces the service life of the cables but may also bring safety hazards to the system operation.

[0004] More prominently, the difficulty in securing the cable is a significant issue. Although some improved cables utilize metal corrugated tubing for protection, they still present noticeable problems: First, the connection between the corrugated tubing and the cable is simple, typically involving just a simple sleeve around the cable, resulting in poor securing. Second, the securing structure lacks adaptability and is difficult to accommodate cables of different specifications. Third, the installation process is cumbersome and requires multiple people to work together. Furthermore, improper securing not only affects the protective effect but may also cause relative displacement between the corrugated tubing and the cable. This design flaw not only increases the difficulty of installation and maintenance but may also affect the overall protective effect of the system.

[0005] Most critically, stability is lacking, and some further improved cable protection devices have obvious defects: First, the fixing structure is too simple and has poor anti-interference ability; second, strong winds and vibrations in the outdoor environment can easily cause the fixing structure to loosen. The loosening of the structure not only affects the protection effect, but may also cause the corrugated pipe to fall off. This design deficiency not only reduces the reliability of the protection device, but may also lead to increased maintenance costs and system operation interruption. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the problems existing in the prior art, this utility model provides an outdoor photovoltaic cable to solve the technical problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: an outdoor photovoltaic cable, comprising a cable, a protective device provided on the outer side of the cable, the protective device comprising a connecting sleeve, a fixing sleeve, and a protective tube, the connecting sleeve being detachably installed on the outer side of the fixing sleeve by means of threads, the fixing sleeve being fixedly disposed at both ends of the protective tube, the protective tube being sleeved on the outer side of the cable, a fixing device being connected to one side of the connecting sleeve, the fixing device comprising a rotating sleeve, a clamping sleeve, a sliding groove, a linkage groove, a linkage block, a pushing sleeve, a sliding block, a sliding plate, and a mating sleeve, the rotating sleeve being rotatably installed on the outer side of the clamping sleeve, the clamping sleeve being fixedly connected to one end of the connecting sleeve, the sliding groove being formed on the inner side of the clamping sleeve, and the linkage groove being formed on the inner side of the connecting sleeve. On the push sleeve, the linkage block is fixedly connected to one side of the sliding block, and the linkage block slides in the linkage groove. The push sleeve is set inside the sleeve. The sliding block is connected to one side of the sliding plate, and the sliding plate slides in the sliding groove. The outer wall of the mating sleeve is movably connected to the inner wall of the rotating sleeve through threads. A reinforcing mechanism is installed on the outside of the sleeve. The reinforcing mechanism includes a locking sleeve, a moving groove, a locking groove, a locking rod, a locking block, and a return spring. The locking sleeve is movably installed on the outside of the sleeve through threads. The moving groove is opened on one side of the rotating sleeve. Multiple locking grooves are opened in the moving groove. The locking rod is connected to one end of the locking block. The end of the locking block is inserted into the locking groove. The return spring is sleeved on the outside of the locking rod.

[0010] The present invention is further configured such that the protective tube is a corrugated metal tube.

[0011] The present invention is further configured such that the ends of the lock block and the edges of the inner wall of the lock groove are both designed with rounded corners.

[0012] The present invention is further configured such that a push spring is connected to one side of the sliding block, and a push plate is connected to the other end of the push spring, the inner side of the push plate being made of rubber.

[0013] The present invention is further configured such that the two ends of the inner wall of the rotating sleeve are symmetrically configured with opposite threads.

[0014] The present invention is further configured such that the side wall of the connecting sleeve is provided with a movable groove, and a movable block is slidably provided in the movable groove. The outer wall of the pushing sleeve is fixedly connected to the inner wall of the mating sleeve through the movable block. The above-mentioned components ensure the synchronous movement of the mating sleeve and the pushing sleeve.

[0015] The present invention is further provided that the ends of the connecting sleeve and the clamping sleeve are rounded, and the rounded corners of the connecting sleeve and the clamping sleeve prevent the edges from scratching the cable shell.

[0016] The present invention is further configured such that a fixing plate is fixedly provided on the outer side of the sleeve, the locking rod is slidably connected to the fixing plate, and the two ends of the return spring are respectively connected to the fixing plate and the locking block. The setting of the fixing plate makes the sliding of the locking rod more stable.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides an outdoor photovoltaic cable with the following advantages:

[0019] 1. The protective device constructs a reliable protection system through the precise cooperation of the connecting sleeve, the fixing sleeve, and the protective tube. The protective tube with a metal corrugated structure provides excellent flexibility and deformation capability. The threaded connection between the connecting sleeve and the fixing sleeve ensures stable installation. The metal material of the protective tube ensures impact resistance. This design not only achieves bending adaptation through the corrugated structure, but also provides anti-biting protection through the metal material. At the same time, the threaded connection design ensures installation reliability and effectively solves the problem of insufficient protection in traditional equipment.

[0020] 2. The fixing device constructs a precise clamping system through the coordinated action of rotating sleeve, clamping sleeve, sliding groove, linkage groove, linkage block, push sleeve, sliding block, sliding plate and mating sleeve. The inclined design of the sliding plate and sliding groove provides progressive clamping force, the cooperation of push spring and push plate realizes buffer protection, and the rubber push plate ensures anti-slip effect. This structure not only achieves uniform clamping through the inclined mechanism, but also provides adaptive adjustment through elastic elements, effectively solving the problem of difficult fixing of protective tubes in traditional equipment.

[0021] 3. The reinforcement mechanism constructs a reliable locking system through the precise cooperation of the locking sleeve, moving groove, locking groove, locking rod, locking block and return spring. The rounded corner design of the locking block and locking groove provides a smooth transition, the cooperation between the return spring and the fixed plate realizes automatic reset, and the threaded movement of the locking sleeve ensures reliable locking. This design not only achieves smooth operation through the rounded corner structure, but also provides convenient locking through elastic reset. At the same time, the multi-protection design ensures structural stability and effectively solves the problem of lack of stability in traditional equipment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an outdoor photovoltaic cable according to the present invention;

[0023] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the protective tube and cable components in this utility model;

[0025] Figure 4This is a cross-sectional structural diagram of the fixing device and the reinforcing mechanism in this utility model;

[0026] Figure 5 This is a cross-sectional view of the rotating sleeve portion in this utility model.

[0027] In the diagram: 1. Cable; 2. Connecting sleeve; 3. Fixing sleeve; 4. Protective tube; 5. Rotating sleeve; 6. Clamping sleeve; 7. Sliding groove; 8. Linkage groove; 9. Linkage block; 10. Pushing sleeve; 11. Sliding block; 12. Sliding plate; 13. Matching sleeve; 14. Locking sleeve; 15. Moving groove; 16. Locking groove; 17. Locking rod; 18. Locking block; 19. Return spring; 20. Push spring; 21. Push plate; 22. Movable groove; 23. Movable block; 24. Fixing plate. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figures 1-5An outdoor photovoltaic cable includes a cable 1. A protective device is provided on the outside of the cable 1. The protective device includes a connecting sleeve 2, a fixing sleeve 3, and a protective tube 4. The connecting sleeve 2 is detachably installed on the outside of the fixing sleeve 3 by threads. The fixing sleeve 3 is fixedly installed at both ends of the protective tube 4. The protective tube 4 is sleeved on the outside of the cable 1. A fixing device is connected to one side of the connecting sleeve 2. The fixing device includes a rotating sleeve 5, a clamping sleeve 6, a sliding groove 7, a linkage groove 8, a linkage block 9, a pushing sleeve 10, a sliding block 11, a sliding plate 12, and a mating sleeve 13. The rotating sleeve 5 is rotatably installed on the outside of the clamping sleeve 6. The clamping sleeve 6 is fixedly connected to one end of the connecting sleeve 2. The sliding groove 7 is opened on the inside of the clamping sleeve 6. The linkage groove 8 is opened on the pushing sleeve 10. The linkage block 9 is fixedly connected to the sliding sleeve 12. On one side of block 11, and the linkage block 9 slides in the linkage groove 8, the push sleeve 10 is set inside the sleeve 6, the sliding block 11 is connected to one side of the sliding plate 12, the sliding plate 12 slides in the sliding groove 7, the outer wall of the mating sleeve 13 is movably connected to the inner wall of the rotating sleeve 5 through threads, and a reinforcing mechanism is installed on the outside of the sleeve 6. The reinforcing mechanism includes a locking sleeve 14, a moving groove 15, a locking groove 16, a locking rod 17, a locking block 18 and a return spring 19. The locking sleeve 14 is movably installed on the outside of the sleeve 6 through threads. The moving groove 15 is opened on one side of the rotating sleeve 5. Multiple locking grooves 16 are opened in the moving groove 15. The locking rod 17 is connected to one end of the locking block 18. The end of the locking block 18 is inserted into the locking groove 16. The return spring 19 is sleeved on the outside of the locking rod 17.

[0032] Protective tube 4 is a corrugated metal tube.

[0033] In this embodiment, the protective tube 4 is a metal corrugated tube structure. The corrugated tube structure design allows the protective tube 4 to bend and deform along with the cable 1. The metal material can prevent animals from biting and colliding, thereby achieving all-round protection for the cable 1. At the same time, it can effectively prevent the cable 1 shell from aging due to rain and sunlight, effectively improving the service life of the cable 1. The threaded connection between the connecting sleeve 2 and the fixing tube allows the protective tube 4 to be well fixed to the outside of the cable 1, preventing relative movement between the protective tube 4 and the cable 1.

[0034] Please see Figures 1-5 As a further implementation of the overall device: the ends of the locking block 18 and the inner edge of the locking groove 16 are both designed with rounded corners.

[0035] A push spring 20 is connected to one side of the sliding block 11, and a push plate 21 is connected to the other end of the push spring 20. The inner side of the push plate 21 is made of rubber.

[0036] The inner walls of the rotating sleeve 5 are symmetrically configured with opposite threads at both ends.

[0037] The side wall of the connecting sleeve 2 is provided with a movable groove 22, and a movable block 23 is slidably provided in the movable groove 22. The outer wall of the push sleeve 10 is fixedly connected to the inner wall of the mating sleeve 13 through the movable block 23.

[0038] Both the ends of the connecting sleeve 2 and the ferrule 6 are rounded.

[0039] A fixing plate 24 is fixedly provided on the outside of the ferrule 6. The locking rod 17 is slidably connected to the fixing plate 24. The two ends of the return spring 19 are respectively connected to the fixing plate 24 and the locking block 18.

[0040] More specifically, when the protective tube 4 needs to be installed on the outside of the cable 1, firstly, the connecting sleeve 2 is threaded onto the outside of the fixed tube, so that the two clamps 6 are respectively connected to the two ends of the protective tube 4 through the connecting sleeve 2 at one end. Then, firstly, the locking sleeve 14 is rotated forward, so that the locking sleeve 14 moves along the thread on the outer wall of the clamp 6. Then, the locking sleeve 14 no longer limits one end of the locking rod 17. Then, the rotating sleeve 5 is rotated forward, so that the rotating sleeve 5 drives the moving groove 15 and the locking groove 16 opened on one side to move. Then, the inner wall of the locking groove 16 presses against the end of the locking block 18. Due to the rounded corner design at the end of the locking block 18 and the edge of the inner wall of the locking groove 16, the locking block 18 will gradually slide out of the locking groove 16 and move into the moving groove 15. The locking block 18 will drive the locking rod 17 along the thread. As the fixed plate 24 slides, the locking block 18 and the fixed plate 24 simultaneously press the return spring 19 sleeved on the outside of the locking rod 17. Meanwhile, due to the symmetrically arranged opposite threads on the inner wall of the rotating sleeve 5, and the movable connection between the outer walls of the two mating sleeves 13 and the inner wall of the rotating sleeve 5 via threads, as well as the limiting effect of the movable block 23 and the interactive groove on the mating sleeves 13, the mating sleeves 13 cannot rotate. Then, the two mating sleeves 13 will respectively drive the movable block 23 on its inner side to slide synchronously inward along the movable groove 22. This, in turn, drives the two push sleeves 10 to slide synchronously inward through the movable block 23. Then, the two push sleeves 10, through their corresponding linkage grooves 8 and linkage blocks 9, drive the two sets of sliding blocks 11 on both sides to drive the sliding plate 12 connected to one side. Sliding along the sliding groove 7, due to the unique inclined structure design of the sliding groove 7 and the sliding plate 12, the sliding plate 12 drives the sliding block 11 to move outward while sliding along the sliding groove 7, and the sliding block 11 drives the linkage block 9 to slide along the linkage groove 8, and the sliding block 11 drives the push plate 21 to move outward through the push spring 20, and then the cable 1 passes through the retaining sleeve 6 at one end, and then passes through the protective tube 4, and finally passes out through the retaining sleeve 6 at the other end, and then the retaining sleeve 6 connected at one end is fixed to the outside of the corresponding position of one end of the cable 1. First, the rotating sleeve 5 is rotated in the opposite direction, so that the rotating sleeve 5 drives the moving groove 15 and the locking groove 16 to rotate in the opposite direction, and makes the two mating sleeves 13 move to both sides synchronously, and then the two mating sleeves 1 3. The movable block 23 drives the push sleeve 10 to move synchronously to both sides along the movable groove 22. Then, the two push sleeves 10 push the two sets of sliding blocks 11 to move to both sides. Then, the sliding block 11 drives the sliding plate 12 to slide in the opposite direction along the sliding groove 7 through the push spring 20. At the same time, the sliding plate 12 drives the sliding block 11 to slide inward. Then, the sliding block 11 drives the linkage block 9 to slide in the opposite direction along the linkage groove 8. At the same time, the sliding block 11 drives the push plate 21 to move inward through the push spring 20, so that the inner wall of the multiple push plates 21 contacts the outer wall of the cable 1. Then, the sliding block 11 continues to move inward. Then, the sliding block 11 and the push plate 21 cooperate to press the push spring 20, so that the sliding block 11 clamps the cable 1 through the cooperation of the push spring 20 and the push plate 21.The return spring 19 pushes the locking block 18 to slide into the corresponding locking groove 16. Then, the locking block 18 drives the locking rod 17 to slide and reset along the fixing plate 24. Then, the locking sleeve 14 is rotated in the opposite direction, so that the locking sleeve 14 limits the locking rod 17 and the locking block 18, preventing them from sliding. Then, the locking block 18 and the corresponding locking groove 16 cooperate to lock the rotating sleeve 5 to the outside of the connecting sleeve 2, thereby stably fixing one end of the protective tube 4 to the outside of the cable 1. Then, the other clamp 6 is moved, so that the other clamp 6 drives the protective tube 4 to stretch or compress. When it moves to a suitable position on the outside of the other end of the cable 1, the clamp 6 is fixed to the outside of the cable 1 according to the above steps.

[0041] In summary, during use or operation of the overall equipment: the protective tube 4 is a metal corrugated pipe structure. The corrugated pipe structure design allows the protective tube 4 to bend and deform along with the cable 1. The metal material can prevent animals from biting and colliding with it, thus achieving all-round protection for the cable 1. At the same time, it can effectively prevent the cable 1 shell from aging due to rain and sunlight, effectively improving the service life of the cable 1. The threaded connection between the connecting sleeve 2 and the fixing tube allows the protective tube 4 to be well fixed to the outside of the cable 1, preventing relative movement between the protective tube 4 and the cable 1.

[0042] When the protective tube 4 needs to be installed on the outside of the cable 1, firstly, the connecting sleeve 2 is threaded onto the outside of the fixed tube, so that the two clamps 6 are connected to the two ends of the protective tube 4 through the connecting sleeve 2 at one end. Then, firstly, the locking sleeve 14 is rotated forward, so that the locking sleeve 14 moves along the thread on the outer wall of the clamp 6. Then, the locking sleeve 14 no longer limits one end of the locking rod 17. Then, the rotating sleeve 5 is rotated forward, so that the rotating sleeve 5 drives the moving groove 15 and the locking groove 16 opened on one side to move. Then, the inner wall of the locking groove 16 presses against the end of the locking block 18. Due to the rounded corner design at the end of the locking block 18 and the edge of the inner wall of the locking groove 16, the locking block 18 will gradually slide out of the locking groove 16 and move into the moving groove 15. The locking block 18 will drive the locking rod 17 along the fixed plate 2. 4. Sliding, simultaneously, the locking block 18 and the fixing plate 24 cooperate to press the return spring 19 sleeved on the outside of the locking rod 17. At the same time, due to the symmetrical opposite threads on the inner wall of the rotating sleeve 5, and the movable connection between the outer walls of the two mating sleeves 13 and the inner wall of the rotating sleeve 5 through threads, as well as the limiting effect of the movable block 23 and the interactive groove on the mating sleeves 13, the mating sleeves 13 cannot rotate. Then, the two mating sleeves 13 will drive the movable block 23 on the inner side to slide synchronously inward along the movable groove 22. Thus, the movable block 23 drives the two push sleeves 10 to slide synchronously inward. Then, the two push sleeves 10 drive the two sets of sliding blocks 11 on both sides through the corresponding linkage groove 8 and linkage block 9 to drive the sliding plate 12 connected to one side to slide along the sliding groove 22. The sliding groove 7 slides. Due to the unique inclined structure design of the sliding groove 7 and the sliding plate 12, the sliding plate 12 slides along the sliding groove 7 while driving the sliding block 11 to move outward. The sliding block 11 drives the linkage block 9 to slide along the linkage groove 8, and the sliding block 11 drives the push plate 21 to move outward through the push spring 20. Then the cable 1 passes through the retaining sleeve 6 at one end, and then passes into the protective tube 4. Finally, it passes out through the retaining sleeve 6 at the other end. Then the retaining sleeve 6 connected at one end is fixed to the outer side of the corresponding position at one end of the cable 1. First, the rotating sleeve 5 is rotated in the opposite direction, so that the rotating sleeve 5 drives the moving groove 15 and the locking groove 16 to rotate in the opposite direction, and makes the two mating sleeves 13 move to both sides synchronously. Then the two mating sleeves 13 separate. The movable block 23 drives the push sleeve 10 to move synchronously to both sides along the movable groove 22. Then, the two push sleeves 10 push the two sets of sliding blocks 11 to move to both sides. The sliding block 11 then drives the sliding plate 12 to slide in the opposite direction along the sliding groove 7 through the push spring 20. At the same time, the sliding plate 12 drives the sliding block 11 to slide inward. Then, the sliding block 11 drives the linkage block 9 to slide in the opposite direction along the linkage groove 8. At the same time, the sliding block 11 drives the push plate 21 to move inward through the push spring 20, so that the inner wall of the multiple push plates 21 contacts the outer wall of the cable 1. Then, the sliding block 11 continues to move inward. Then, the sliding block 11 and the push plate 21 cooperate to press the push spring 20, so that the sliding block 11 clamps the cable 1 through the cooperation of the push spring 20 and the push plate 21.The return spring 19 pushes the locking block 18 to slide into the corresponding locking groove 16. Then, the locking block 18 drives the locking rod 17 to slide and reset along the fixing plate 24. Then, the locking sleeve 14 is rotated in the opposite direction, so that the locking sleeve 14 limits the locking rod 17 and the locking block 18, preventing them from sliding. Then, the locking block 18 and the corresponding locking groove 16 cooperate to lock the rotating sleeve 5 to the outside of the connecting sleeve 2, thereby stably fixing one end of the protective tube 4 to the outside of the cable 1. Then, the other clamp 6 is moved, so that the other clamp 6 drives the protective tube 4 to stretch or compress. When it moves to a suitable position on the outside of the other end of the cable 1, the clamp 6 is fixed to the outside of the cable 1 according to the above steps.

[0043] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An outdoor photovoltaic cable, comprising a cable (1), characterized in that: A protective device is provided on the outside of the cable (1). The protective device includes a connecting sleeve (2), a fixing sleeve (3), and a protective tube (4). The connecting sleeve (2) is threaded onto the outside of the fixing sleeve (3). The protective tube (4) is sleeved on the outside of the cable (1). A fixing device is connected to one side of the connecting sleeve (2). The fixing device includes a rotating sleeve (5), a clamping sleeve (6), a sliding groove (7), a linkage groove (8), a linkage block (9), a push sleeve (10), a sliding block (11), a sliding plate (12), and a mating sleeve (13). The sliding groove (7) is opened inside the clamping sleeve (6). The linkage groove (8) is opened on the push sleeve (10). The linkage block (9) is connected to the sliding block (11). On one side, the push sleeve (10) is set inside the sleeve (6), the sliding block (11) is connected to the side of the sliding plate (12), the mating sleeve (13) is connected to the rotating sleeve (5) by threads, and a reinforcing mechanism is installed on the outside of the sleeve (6). The reinforcing mechanism includes a locking sleeve (14), a moving groove (15), a locking groove (16), a locking rod (17), a locking block (18), and a return spring (19). The locking sleeve (14) is installed on the outside of the sleeve (6), the moving groove (15) is opened on one side of the rotating sleeve (5), multiple locking grooves (16) are opened in the moving groove (15), the locking rod (17) is connected to one end of the locking block (18), and the return spring (19) is sleeved on the outside of the locking rod (17).

2. An outdoor photovoltaic cable according to claim 1, characterized in that: The protective tube (4) is a corrugated metal tube.

3. An outdoor photovoltaic cable according to any one of claims 1 or 2, characterized in that: The ends of the lock block (18) and the edges of the inner wall of the lock groove (16) are both designed with rounded corners.

4. An outdoor photovoltaic cable according to claim 1, characterized in that: A push spring (20) is connected to one side of the sliding block (11), and a push plate (21) is connected to the other end of the push spring (20). The inner side of the push plate (21) is made of rubber.

5. An outdoor photovoltaic cable according to claim 4, characterized in that: The inner walls of the rotating sleeve (5) are symmetrically configured with opposite threads at both ends.

6. An outdoor photovoltaic cable according to claim 5, characterized in that: The connecting sleeve (2) has a movable groove (22) on its side wall, and a movable block (23) is slidably provided in the movable groove (22). The outer wall of the push sleeve (10) is fixedly connected to the inner wall of the mating sleeve (13) through the movable block (23).

7. An outdoor photovoltaic cable according to claim 6, characterized in that: Both the connecting sleeve (2) and the ferrule (6) have rounded corners at their ends.

8. An outdoor photovoltaic cable according to claim 3, characterized in that: The outer side of the sleeve (6) is fixedly provided with a fixing plate (24), the locking rod (17) is slidably connected to the fixing plate (24), and the two ends of the reset spring (19) are respectively connected to the fixing plate (24) and the locking block (18).

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