Photovoltaic cable maintenance marking device

Abstract

This utility model discloses a photovoltaic cable maintenance marking device, including an upper frame, a lower frame, an upper clamping block, and a lower clamping block. An upper sliding frame is fixed to the upper side of the upper clamping block, and the upper sliding frame is disposed within the upper frame via an upper sliding structure. The upper sliding structure includes an upper slider, an inner baffle, an end pressure block, and a spring. An assembly groove is opened in the inner wall of the upper frame. The inner baffle is detachably disposed on one side of the assembly groove. An insertion groove is formed between the inner side of the inner baffle and the assembly groove, and the upper slider is disposed in the insertion groove. The upper slider is fixedly connected to the upper sliding frame, and the spring is arranged in the insertion groove. The end pressure block is detachably mounted on the lower end of the upper frame. An assembly groove is opened in the frame for inserting the slider and the spring, and the slider and the spring are disposed inside the frame to form a certain protective function through the setting of the inner baffle. The detachable setting of the inner baffle and the end pressure block facilitates the replacement and maintenance of the slider, the spring, the sliding frame, and the clamping block, making the entire maintenance marking device easy to assemble, disassemble, and maintain.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic operation and maintenance technology, specifically to a photovoltaic cable operation and maintenance marking device. Background Technology

[0002] Post-commissioning equipment maintenance and management is a crucial aspect of ensuring the stable operation of photovoltaic (PV) power plants. This includes both hardware and software maintenance, with hardware maintenance encompassing the inspection of cable branches. Since a PV power plant contains numerous cable branches, problems discovered during inspections need to be marked for later repairs. This has led to the development of marking devices for PV cable maintenance. Existing marking devices typically include an upper frame, a lower frame, an upper clamping block, and a lower clamping block. The upper and lower frames are detachable and can be assembled separately. The upper and lower clamping blocks are located within the assembly space formed by the upper and lower frames and are used to clamp the cables. They also include springs that exert clamping force on the upper and lower clamping blocks. Most of these springs are external, visible from the marking device, which fails to provide effective protection for the springs and thus affects the lifespan of the springs and the entire marking device. Therefore, further research and development are needed on the structural layout of marking devices. Summary of the Invention

[0003] To address the aforementioned technical problems, the purpose of this utility model is to provide a photovoltaic cable maintenance marking device that provides some protection for the spring and is also easy to replace and maintain.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A photovoltaic cable maintenance marking device includes an upper frame, a lower frame, an upper clamping block, and a lower clamping block. The upper and lower frames are detachable and can be assembled separately. The upper and lower clamping blocks are located within the assembly space formed by the upper and lower frames. The upper and lower clamping blocks are arc-shaped blocks, and a clamping space is formed between them. A groove is provided on the upper surface outside the upper frame and / or the lower surface outside the lower frame, and a marking card is glued into the groove.

[0006] The upper frame and the lower frame are both concave structures with one end open, with the upper frame opening facing downwards and the lower frame opening facing upwards.

[0007] An upper sliding frame extending toward the inner wall of the upper frame is fixedly installed on the upper side of the upper clamping block. The upper sliding frame is installed inside the upper frame through an upper sliding structure.

[0008] The upper sliding structure includes an upper slider, an inner baffle, an end pressure block, and a spring; the inner wall of the upper frame has an assembly groove that is open at the bottom and penetrates the interior of the upper frame; the inner baffle is detachably set on one side of the assembly groove; an insertion groove is formed between the inner side of the inner baffle and the assembly groove, and the upper slider is placed in the insertion groove; the outer side of the inner baffle is flush with the inner surface of the upper frame.

[0009] The upper slider is fixedly connected to the upper sliding frame. The inner baffle is provided with a clearance slot to allow the upper sliding frame to slide up and down. The spring is arranged in the groove and is pressed between the upper slider and the bottom of the groove. The end pressure block is detachably assembled to the lower end of the upper frame to form a cover for the lower end of the assembly groove.

[0010] A lower sliding frame extending toward the inner wall of the lower frame is fixedly installed on the lower side of the lower clamping block. The lower sliding frame is installed inside the lower frame through a lower sliding structure, which is the same as the upper sliding structure.

[0011] In a further embodiment, the inner baffle includes a mounting part and a guide part that bends at 90° with the mounting part. The mounting part is fixedly installed to the bottom of the assembly groove by screws. The guide part blocks the inside of the assembly groove. A slot is provided on the inner side of the assembly groove along the depth direction of the assembly groove. The side of the guide part has a snap-fit ​​part that is inserted into the slot. A clearance slot is provided on the guide part.

[0012] In a further embodiment, the lower end surface of the upper frame is provided with a mounting groove that communicates with the lower end of the assembly groove, and the outer end of the end pressure block is assembled into the mounting groove by screws; the inner end of the end pressure block is located directly below the assembly groove and fits against the lower end surface of the assembly groove and the lower end of the inner baffle to form a cover; the lower surface of the end pressure block does not extend beyond the groove opening of the mounting groove.

[0013] In a further embodiment, the upper sliding frame includes upper connecting plates that are fixedly disposed on the outer side above the upper clamping block, and the two upper connecting plates are respectively disposed on both sides of the upper frame through two upper sliding structures.

[0014] The lower sliding frame includes lower connecting plates that are fixedly installed on the outer side below the upper clamping block. The two lower connecting plates are respectively installed on both sides of the lower frame through two lower sliding structures.

[0015] In a further embodiment, a guide post extending vertically toward the assembly groove is fixedly provided on the end pressure block, and a guide hole is opened on the upper slider for the guide post to pass through.

[0016] In a further embodiment, a 7-shaped insertion block is fixedly installed on the outer side of the upper frame, with the lower end of the insertion block extending towards the upper outer side of the lower frame. A locking block is fixedly installed on the upper outer side of the lower frame, with an insertion port on the locking block facing the lower end of the insertion block. The lower end of the insertion block is in the insertion port, and together with a screw connector, the insertion block and the locking block are fixedly connected.

[0017] By adopting the above technical solution, this utility model provides a mounting slot within the frame for inserting the slider and spring. The inner baffle further secures the slider and spring within the frame, providing a degree of protection. Additionally, the detachable inner baffle and end pressure blocks facilitate the replacement and maintenance of the slider, spring, sliding frame, and clamping block, making the entire maintenance marking device easy to assemble, disassemble, and maintain. From the outside, only the upper frame, lower frame, upper sliding frame, lower sliding frame, upper clamping block, and lower clamping block are exposed, resulting in a relatively simple structure that is convenient for operation and use during marking. Attached Figure Description

[0018] Figure 1 This is a side view of the present invention when the cable is not clamped.

[0019] Figure 2 This is a side view of the structure of the present invention when clamping a cable;

[0020] Figure 3 This is a top view of the structure of this utility model;

[0021] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 5 This is a top view of the lower frame structure of this utility model;

[0023] Figure 6 for Figure 5 A schematic diagram of the structure after removing the end pressure block;

[0024] Figure 7 This is a top view of the inner baffle in this utility model.

[0025] Figure 8 This is a side view of the inner baffle in this utility model.

[0026] The labels in the attached diagram represent the following:

[0027] 1. Upper frame, 2. Lower frame, 3. Upper clamping block, 4. Lower clamping block, 5. Assembly space, 6. Cable, 7. Clamping space, 8. Groove, 9. Marking card, 10. Upper slider, 11. Inner baffle, 12. End pressure block, 13. Spring, 14. Assembly groove, 15. Relief groove, 16. Upper sliding frame, 1601. Lower sliding frame, 17. Mounting part, 18. Guide part, 19. Slot, 20. Snap-in part, 21. Mounting groove, 22. Support pad, 23. Guide post, 24. Guide hole, 25. Insertion block, 26. Locking block. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] See Figure 1 As shown, the photovoltaic cable maintenance marking device includes an upper frame 1, a lower frame 2, an upper clamping block 3, and a lower clamping block 4. The upper frame 1 and the lower frame 2 are detachably assembled. The upper clamping block 3 and the lower clamping block 4 are located within the assembly space 5 formed by the upper frame 1 and the lower frame 2. The upper clamping block 3 and the lower clamping block 4 are arc-shaped blocks. Rubber pads are provided on the inner surface of the arc-shaped blocks to increase the friction between them and the outer wall of the cable, thereby enhancing the clamping ability. A clamping space 7 for clamping the cable 6 is formed between the upper clamping block 3 and the lower clamping block 4. The upper clamping block 3 presses against the upper outer wall of the cable from above, and the lower clamping block 4 presses against the lower outer wall of the cable from below. Thus, the clamping ability of the cable is achieved through the cooperation of the upper and lower clamping blocks 4.

[0030] The upper frame 1 and lower frame 2 are both concave structures with one open end. The upper frame 1 is arranged with its opening facing downwards, and the lower frame 2 is arranged with its opening facing upwards. The lower ends of both sides of the upper frame 1 and the upper ends of both sides of the lower frame 2 are joined together. When the upper frame 1 and lower frame 2 are assembled together, a rectangular assembly space is formed between them. A groove 8 is provided on the upper surface of the upper frame 1 and / or the lower surface of the lower frame 2. A marking card 9 is glued into the groove 8. The marking card 9 is used by photovoltaic maintenance personnel for maintenance marking.

[0031] An upper sliding frame 16 extending toward the inner wall of the upper frame 1 is fixedly provided on the upper side of the upper clamping block 3. The upper sliding frame 16 is set inside the upper frame 1 through an upper sliding structure; thus, the upper clamping block 3 can move up and down inside the upper frame 1 with the cooperation of the upper sliding frame 16 and the upper sliding structure.

[0032] The upper sliding structure includes an upper slider 10, an inner baffle 11, an end pressure block 12, and a spring 13. The inner wall of the upper frame 1 has an assembly groove 14 that is open at the bottom and extends through the interior of the upper frame 1. The inner baffle 11 is detachably installed on the side of the assembly groove 14 near the interior of the upper frame 1 by screws to shield the side of the assembly groove 14. An insertion groove is formed between the inner side of the inner baffle 11 and the assembly groove 14, and the upper slider 10 is placed in the insertion groove and can slide in the insertion groove. The outer side of the inner baffle 11 is flush with the inner surface of the upper frame 1, so that the inner wall of the upper frame 1 appears neat and uniform when viewed from the outside of the device.

[0033] The upper slider 10 is fixedly connected to the upper sliding frame 16. The inner baffle 11 has a clearance slot 15 for the upper sliding frame 16 to slide up and down within the clearance slot. The spring 13 is vertically arranged in the insertion groove and is pressed between the upper slider 10 and the bottom of the insertion groove. The width of the clearance slot 15 is smaller than the outer diameter of the spring 13. The end pressure block 12 is detachably assembled to the lower end of the upper frame 1 by screws. It is used to cover the lower end of the mounting groove and to block the lower end of the upper slider 10. The spring 13 is in the insertion groove. When the upper clamping block 3 is not under force, the spring 13 applies an elastic force to the upper slider 10, so that the upper slider 10 and the end pressure block 12 come into contact, and a certain pre-support capacity is generated for the upper slider 10, so that the clamping block can generate better clamping capacity when clamping the cable.

[0034] A lower sliding frame 1601 extending toward the inner wall of the lower frame 2 is fixedly installed on the lower side of the lower clamping block 4. The lower sliding frame 1601 is installed in the lower frame 2 through a lower sliding structure. The lower sliding structure is the same as the upper sliding structure, but the arrangement direction is opposite. The upper sliding structure and the lower sliding structure are arranged symmetrically at the center line when the upper clamping block 3 and the lower clamping block 4 are combined. The upper spring 13 generates a downward supporting force on the upper sliding frame 1601, and the lower spring 13 generates an upward supporting force on the lower sliding frame 1601, so that a clamping force can be generated between the upper clamping block 3 and the lower clamping block 4.

[0035] The inner baffle 11 includes a mounting part 17 and a guide part 18 that bends at 90° to the mounting part 17. The mounting part 17 is horizontally arranged, and the guide part 18 is vertically arranged. The mounting part 17 is fixedly installed to the bottom of the assembly groove by screws. The guide part 18 is located inside the assembly groove. A clearance slot 15 is opened in the middle of the guide part 18 along its length. The bottom of the clearance slot 15 restricts the sliding stroke of the sliding frame. When the bottom of the clearance slot 15 contacts the sliding frame, the spring 13 is compressed to its lowest position and has a rebound capability, which keeps the clamping block in the clamping state and prevents the clamping block from contacting the inner wall of the corresponding frame, thus not affecting the assembly stability between the upper and lower frames 2. The end of the spring 13 away from the slider is located between the mounting part 17, the inner side of the guide part 18, and the inner wall of the assembly groove, forming a certain constraint on the diameter of the spring 13.

[0036] A slot 19 is provided on the inner side of the assembly slot, arranged along the depth direction of the assembly slot. The side of the guide part 18 has a snap-in part 20 that is inserted into the slot 19. From the open end of the assembly slot, the mounting part 17 is placed at the front end, and the snap-in part 20 is aligned with the slot 19. Force is applied from the outside to push the inner baffle 11 toward the bottom of the assembly slot until the mounting part 17 reaches the bottom of the assembly slot. Then, the mounting part 17 is screwed to the bottom of the assembly slot. This ensures that the inner baffle 11 can be stably assembled, so that it has a stable ability to guide the sliding frame to slide up and down.

[0037] The lower end surface of the upper frame 1 has a mounting groove 21 that communicates with the lower end of the mounting slot. The outer end of the end pressure block 12 is mounted in the mounting groove 21 by screws. The inner end of the end pressure block 12 is located directly below the mounting slot and fits against the lower end surface of the mounting slot and the lower end of the inner baffle 11 to form a cover, thereby constraining the outer end of the slider. The lower surface of the end pressure block 12 does not extend beyond the opening of the mounting groove 21. A support pad 22 is fixedly installed on the outer surface of the inner end of the end pressure block 12. The outer surface of the support pad 22 is flush with the opening of the mounting groove 21. When the upper frame 1 and the lower frame 2 are combined, the upper and lower support pads 22 fit together, thereby further enhancing the stability of the inner end structure of the end pressure block 12 and enabling it to stably constrain the slider.

[0038] The upper sliding frame 16 includes upper connecting plates fixedly disposed on the outer side above the upper clamping block 3. The upper clamping block, upper connecting plates, and upper sliding block 10 can be designed as an integral molding structure. The two upper connecting plates are respectively disposed on both sides of the upper frame 1 through the upper sliding structure. The lower sliding frame 1601 includes lower connecting plates fixedly disposed on the outer side below the upper clamping block 3. The two lower connecting plates are respectively disposed on both sides of the lower frame 2 through the lower sliding structure. By setting connecting plates on both sides of the clamping block, the support capacity of the clamping block is improved, and the two connecting plates are slidably disposed on the inner wall of the frame through the sliding structure, further enhancing the stability of the clamping block's vertical movement.

[0039] A guide post 23 extending vertically into the mounting groove is fixedly mounted on the end pressure block 12, and a guide hole 24 is provided on the upper slider 10 for the guide post 23 to pass through. The sliding of the guide post 23 within the guide hole 24 enhances the stability of the slider movement. When the clamping block is in its initial state, i.e., without clamping the cable, the distance between the front end of the guide post 23 and the mounting part 17 is greater than the distance between the sliding frame and the bottom of the clearance slot 15. The front end of the guide post 23 extends into a section of the spring 13, which also provides some guidance during the compression of the spring 13.

[0040] A 7-shaped insertion block 25 is fixedly installed on the outer side of the upper frame 1. The lower end of the insertion block 25 extends towards the upper outer side of the lower frame 2. A locking block 26 is fixedly installed on the upper outer side of the lower frame 2. The locking block 26 has an insertion port facing the lower end of the insertion block 25. The lower end of the insertion block 25 is placed in the insertion port, and with the help of screw connectors, the insertion block 25 and the locking block 26 are fixedly connected. Through the cooperation of the insertion block 25 and the locking block 26, the upper frame 1 and the lower frame 2 can be easily locked together.

[0041] When maintenance personnel need to mark the cables during the operation and maintenance of photovoltaic power generation lines, the upper frame 1 and lower frame 2 are positioned on both sides of the cable, with the cable between the upper clamping block 3 and the lower clamping block 4. During the process of the upper frame 1 and lower frame 2 closing, the upper and lower clamping blocks move within their respective frames and compress the corresponding springs 13 until the insertion block and locking block are inserted into place. At this time, the cable is clamped between the upper and lower clamping blocks 4, thus attaching the marking device to the cable that needs to be marked. By marking the operation and maintenance on the marking card, it is convenient for subsequent inspection and observation.

[0042] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A photovoltaic cable maintenance marking device, comprising an upper frame, a lower frame, an upper clamping block, and a lower clamping block, wherein the upper and lower frames are detachably assembled, the upper and lower clamping blocks are located within the assembly space formed by the upper and lower frames, the upper and lower clamping blocks are arc-shaped blocks, and a clamping space is formed between the upper and lower clamping blocks; a groove is formed on the upper surface outside the upper frame and / or the lower surface outside the lower frame, and a marking card is glued into the groove, characterized in that... The upper frame and the lower frame are both concave structures with one end open, with the upper frame opening facing downwards and the lower frame opening facing upwards. An upper sliding frame extending toward the inner wall of the upper frame is fixedly installed on the upper side of the upper clamping block. The upper sliding frame is installed inside the upper frame through an upper sliding structure. The upper sliding structure includes an upper slider, an inner baffle, an end pressure block, and a spring; the inner wall of the upper frame has an assembly groove that is open at the bottom and penetrates the interior of the upper frame; the inner baffle is detachably set on one side of the assembly groove; an insertion groove is formed between the inner side of the inner baffle and the assembly groove, and the upper slider is placed in the insertion groove; the outer side of the inner baffle is flush with the inner surface of the upper frame. The upper slider is fixedly connected to the upper sliding frame. The inner baffle is provided with a clearance slot to allow the upper sliding frame to slide up and down. The spring is arranged in the groove and is pressed between the upper slider and the bottom of the groove. The end pressure block is detachably assembled to the lower end of the upper frame to form a cover on the lower end of the assembly groove. A lower sliding frame extending toward the inner wall of the lower frame is fixedly installed below the lower clamping block. The lower sliding frame is set inside the lower frame through a lower sliding structure, which is the same as the upper sliding structure.

2. The photovoltaic cable O&M marker device of claim 1, wherein, The inner baffle includes a mounting part and a guide part that bends at 90° with the mounting part. The mounting part is fixedly installed to the bottom of the assembly groove by screws. The guide part is blocked inside the assembly groove. A slot is provided on the inner side of the assembly groove along the depth direction of the assembly groove. The side of the guide part has a snap-fit ​​part that is inserted into the slot. A clearance slot is provided on the guide part. 3.The photovoltaic cable operation and maintenance marking device of claim 1, wherein, The lower end surface of the upper frame is provided with a mounting groove that communicates with the lower end of the assembly groove. The outer end of the end pressure block is assembled into the mounting groove by screws. The inner end of the end pressure block is located directly below the assembly groove and fits against the lower end face of the assembly groove and the lower end of the inner baffle to form a cover. The lower surface of the end pressure block does not extend beyond the groove opening of the mounting groove.

4. The photovoltaic cable O&M marker device of claim 1, wherein, The upper sliding frame includes upper connecting plates that are fixedly installed on the outer side above the upper clamping block. The two upper connecting plates are respectively installed on both sides of the upper frame through two upper sliding structures. The lower sliding frame includes lower connecting plates that are fixedly installed on the outer side below the upper clamping block. The two lower connecting plates are respectively installed on both sides of the lower frame through two lower sliding structures.

5. The photovoltaic cable O&M marker device of claim 1, wherein, A guide post is fixedly installed on the end pressure block, extending vertically toward the assembly groove, and a guide hole is opened on the upper slider for the guide post to pass through.

6. The photovoltaic cable maintenance marking device as described in claim 1, characterized in that, A 7-shaped insert block is fixedly installed on the outer side of the upper frame. The lower end of the insert block extends towards the upper outer side of the lower frame. A locking block is fixedly installed on the upper outer side of the lower frame. The locking block has an insertion port facing the lower end of the insert block. The lower end of the insert block is in the insertion port and is fixedly connected to the locking block with screw connectors.

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