Photovoltaic direct-current cable pay-off device
By designing a photovoltaic DC cable wiring release device combining vertical poles, folding structures and bottom plates, the problems of slow wiring release progress, high construction costs and safety hazards in the prior art are solved, and the effects of rapid construction, portability and efficient wiring release are achieved.
Patent Information
- Application Number
- CN202421905568.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-08
AI Technical Summary
The current DC cable laying method is slow, making it difficult to ensure the laying process, which increases construction costs and poses safety risks.
A photovoltaic DC cable release device is designed, using a combination of vertical pole, folding structure and bottom plate, combined with a triangular stable support structure, guide pulley and rolling bearing to achieve rapid construction, portability and efficient release.
It improves the efficiency of wiring lay-off progress, enhances the stability and safety of the device, reduces cable friction, protects cable integrity, and reduces construction costs.
Smart Images
Figure CN222907166U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of cable laying structures, and particularly relates to a photovoltaic DC cable laying device. Background Art
[0002] During the construction of large-scale photovoltaic power stations, the laying of DC cables is a crucial link, and its progress and technology are directly related to the performance and safety of the entire power station. However, the currently widely used laying method of using a loader in cooperation with manual cable laying, although having its applicability, has gradually shown its drawbacks in the face of the increasing construction requirements: the cable laying progress is slow and difficult to keep up with the tight construction schedule; the laying technology is difficult to guarantee and may affect the long-term service performance of the cables; at the same time, this method requires a large amount of manual and mechanical input, increasing the construction cost and being unfavorable for cost control.
[0003] In addition, existing cable laying devices are often large in size, inconvenient for construction workers to carry during outdoor operations, occupying construction space and increasing the risk of personnel bumping, posing a potential threat to the safety of construction workers. Therefore, exploring a more efficient, safe and economical DC cable laying device has become an urgent problem to be solved in the field of photovoltaic power station construction. Summary of the Utility Model
[0004] To solve the problems existing in the prior art, the utility model provides a photovoltaic DC cable laying device, which solves the above technical problems.
[0005] To achieve the purpose of the utility model, the following technical solutions are adopted: a photovoltaic DC cable laying device, including a first vertical rod, a bottom plate, and a second vertical rod. Both the first vertical rod and the second vertical rod are cylindrical; the first vertical rod is longer than the second vertical rod; the upper end of the first vertical rod is sleeved with one end of a cross bar by a folding structure; the other end of the cross bar is vertically and movably connected with a guiding pulley; a support rod is movably connected at a position near the folding structure on the inner side of the upper end of the first vertical rod; the support rod is lifted upward to cooperate with the cross bar to form a triangular stable support structure; a rolling bearing is welded to the top end of the second vertical rod; the inner side wall of the rolling bearing is welded and fixed to the outer wall of the second vertical rod, and the rolling bearing is used in interference fit with the second vertical rod; the horizontal end of the outer side wall of the rolling bearing is vertically connected with one end of a support arm; the other end of the support arm is welded with a guiding ring in parallel; external threads are provided on the outer side walls of the lower ends of the first vertical rod and the second vertical rod; the bottom plate is in the shape of a flat cuboid; connection grooves one and two are respectively provided on the upper plate surface of the bottom plate; internal threads are provided on the inner side walls of the connection grooves one and two; the external thread at the lower end of the first vertical rod is threadedly connected and fixed with the internal thread in the connection groove one; the external thread at the lower end of the second vertical rod is threadedly connected and fixed with the internal thread in the connection groove two.
[0006] Further, the folding structure is composed of a right-angle folding pipe, a connecting pipe, and a first rotating shaft; the lower end of the right-angle folding pipe is hollow and is sleeved and fixed on the upper end of the first vertical rod; a connecting buckle A is provided on the upper end face of the right-angle folding pipe; a connecting block a is provided on one end face of the connecting pipe; the connecting block a is inserted into the middle of the connecting buckle A and is movably connected by the first rotating shaft; the other end of the connecting pipe is hollow and is sleeved and fixed on one end of the cross bar.
[0007] Further, the other end of the cross bar and the guiding pulley are connected by a connecting member; the connecting member includes a U-shaped clamp a, a U-shaped clamp b, a third rotating shaft, and a fourth rotating shaft; the open end of the U-shaped clamp b faces upward and is movably connected to the other end of the cross bar by the fourth rotating shaft; the open end of the U-shaped clamp a faces downward and is movably connected to the guiding pulley by the third rotating shaft; the closed ends of the U-shaped clamp a and the U-shaped clamp b are arranged opposite to each other and are movably connected by a fifth rotating shaft.
[0008] Further, a connecting buckle B is vertically provided at one end of the support rod; the first vertical rod is close to the folding structure; the connecting block b is inserted into the middle of the connecting buckle B and is movably connected by the second rotating shaft; a groove is provided on the lower side of the cross bar; the other end of the support rod rotates upward and is buckled and fixed with the groove of the cross bar.
[0009] Further, a connecting buckle C is provided on one side wall of the rolling bearing; the support arm is in a cuboid shape; a connecting block c is provided at one end of the support arm; the connecting block c is inserted into the middle of the connecting buckle C, and the connecting buckle C and the connecting block c are sequentially penetrated by a bolt and are used in cooperation with a nut.
[0010] Further, the inner diameter of the rolling bearing is 50 mm, and the outer diameter is 90 mm.
[0011] Further, the size of the support arm is 2 mm × 5 mm; the guiding ring is bent into a circular ring with a diameter of 6 mm by an 8# iron wire.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] Through the ingenious combination of the vertical rod, the folding structure, and the bottom plate, the photovoltaic DC cable laying device realizes the rapid erection and portability of the device, facilitating flexible deployment at the photovoltaic construction site. The application of the triangular stable support structure not only enhances the overall structural stability but also ensures the safety during the cable laying process. The setting of the guiding pulley and the 360° rotation of the support arm driven by the rolling bearing effectively reduce the friction between the cable and the device, protect the integrity of the cable, and improve the work efficiency. In addition, the stable combination of the bottom plate with the first vertical rod and the second vertical rod further improves the stability of the device, ensuring stable operation under various environmental conditions. Generally speaking, the device has the characteristics of simple structure, convenient operation, safe and reliable, wide application range, etc., providing great convenience for the cable laying operation of photovoltaic DC cables. Description of the Drawings
[0014] Figure 1 is the overall structural schematic diagram of the present utility model;
[0015] Figure 2 is the exploded structural schematic diagram of the present utility model;
[0016] Figure 3 is the folding and disassembling structural schematic diagram of the present utility model;
[0017] In the figure: the first vertical rod - 1, the connecting block b - 101, the support arm - 2, the connecting block c - 201, the cross bar - 3, the groove - 301, the support rod - 4, the bottom plate - 5, the connecting groove one - 501, the connecting groove two - 502, the second vertical rod - 6, the guiding pulley - 7, the right-angle folding pipe - 8, the connecting buckle A - 801, the connecting pipe - 9, the connecting block a - 901, the rotating shaft one - 10, the connecting buckle B - 11, the rotating shaft two - 12, the connecting buckle C - 13, the bolt - 14, the nut - 15, the guiding ring - 16, the U-shaped clamp a - 17, the rotating shaft three - 18, the U-shaped clamp b - 19, the rotating shaft four - 20, the rolling bearing - 21, the rotating shaft five - 22, the cable reel - 23, the photovoltaic DC cable - 24. Specific embodiments
[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model:
[0019] Such as Figures 1-3As shown in the figure, a photovoltaic DC cable laying device includes a first vertical rod 1, a bottom plate 5, and a second vertical rod 6. Both the first vertical rod 1 and the second vertical rod 6 are cylindrical. The first vertical rod 1 is higher than the second vertical rod 6. The first vertical rod 1 is designed to be higher than the second vertical rod 6, ensuring the stability and load-bearing capacity of the device. The upper end of the first vertical rod 1 is sleeved with one end of a cross bar 3 by a folding structure. The other end of the cross bar 3 is vertically and movably connected with a guiding pulley 7, which can provide a smooth guiding effect when the cable passes through, reduce the friction between the cable and the device, and protect the cable from damage. The inner side of the upper end of the first vertical rod 1 near the folding structure is movably connected with a supporting rod 4. The supporting rod 4 is lifted upward and used in cooperation with the cross bar 3 to form a triangular stable support structure. The top end of the second vertical rod 6 is welded with a rolling bearing 21. The inner side wall of the rolling bearing 21 is welded and fixed to the outer wall of the second vertical rod 6, and the rolling bearing 21 is used in interference fit with the second vertical rod 6. The horizontal end of the outer side wall of the rolling bearing 21 is vertically connected with one end of a supporting arm 2. The other end of the supporting arm 2 is welded with a guiding ring 16 in parallel, which plays a key guiding role during the cable laying process and can ensure that the cable is laid along a predetermined track. The outer side walls of the lower ends of the first vertical rod 1 and the second vertical rod 6 are both provided with external threads. The bottom plate 5 is in the shape of a flat cuboid. The upper plate surface of the bottom plate 5 is respectively provided with a connecting groove 501 and a connecting groove 502. The inner side walls of the connecting groove 501 and the connecting groove 502 are both provided with internal threads. The external thread at the lower end of the first vertical rod 1 is threadedly connected and fixed with the internal thread in the connecting groove 501. The external thread at the lower end of the second vertical rod 6 is threadedly connected and fixed with the internal thread in the connecting groove 502, which can easily fix the first vertical rod 1 and the second vertical rod 6 on the bottom plate 5, realizing the rapid assembly and disassembly of the device.
[0020] During the actual use process, we first place the bottom plate 5 stably at the designated position of the photovoltaic power station, and then fix the first vertical rod 1 and the second vertical rod 6 on the connecting groove 501 and the connecting groove 502 of the bottom plate 5 respectively by threaded connection. Then, we adjust the positions and angles of the cross bar 3, the guiding pulley 7, the supporting rod 4, as well as the supporting arm 2 and the guiding ring 16 according to the cable laying requirements. It should be noted that when the supporting rod 4 is unfolded and fixed, when the guiding pulley 7 is vertical, it is perpendicular to the rolling bearing 21 at one point. Finally, we can start the cable laying work. During the laying process, the cable will first be guided by the guiding pulley 7, and then be laid along the tracks of the supporting arm 2 and the guiding ring 16 until it reaches the predetermined laying position. Throughout the process, the device performs very stably and reliably, providing strong support for the cable laying work of the photovoltaic power station.
[0021] Specifically, the folding structure is composed of a right-angle folding tube 8, a connecting tube 9, and a first rotating shaft 10; the lower end of the right-angle folding tube 8 is hollow and is sleeved and fixed on the upper end of the first vertical rod 1. This component of the right-angle folding tube 8 not only enhances the structural stability but also facilitates its subsequent connection with other components; a connecting buckle A801 is provided on the upper end face of the right-angle folding tube 8; a connecting block a901 is provided on one end face of the connecting tube 9; the connecting block a901 is inserted into the middle of the connecting buckle A801 and is movably connected by the first rotating shaft 10; the other end of the connecting tube 9 is hollow and is sleeved and fixed on one end of the cross bar 3. The connecting tube 9 rotates and folds to a certain extent relative to the right-angle folding tube 8, thereby imparting flexibility to the entire folding structure.
[0022] Specifically, the other end of the cross bar 3 and the guiding pulley 5 are connected by a connecting member; the connecting member includes a U-shaped clamp a17, a U-shaped clamp b19, a third rotating shaft 18, and a fourth rotating shaft 20; the open end of the U-shaped clamp b19 faces upward and is movably connected to the other end of the cross bar 3 by the fourth rotating shaft 20; the open end of the U-shaped clamp a17 faces downward and is movably connected to the guiding pulley 5 by the third rotating shaft 18, which can ensure that when the guiding pulley 5 folds down the supporting rod 4, the natural downward rotation direction of the guiding pulley 5 is perpendicular to the ground, facilitating the construction personnel to store it; the closed ends of the U-shaped clamp a17 and the U-shaped clamp b19 are arranged opposite to each other and are movably connected by a fifth rotating shaft 22, effectively realizing that during the wire laying process, the guiding pulley 5 can also rotate 360°, meeting the wire laying requirements in all directions during the wire laying process.
[0023] Specifically, a connecting buckle B11 is vertically provided at one end of the supporting rod 4; a connecting block b101 is provided at a position on the first vertical rod 1 close to the inner side of the folding structure; the connecting block b101 is inserted into the middle of the connecting buckle B11 and is movably connected by a second rotating shaft 12; a groove 301 is provided on the lower side of the cross bar 3; the other end of the supporting rod 4 rotates upward and is snap-fitted and fixed to the groove 301 of the cross bar 3.
[0024] Specifically, a connecting buckle C13 is provided on one side side wall of the rolling bearing 21; the support arm 2 is in a cuboid shape; a connecting block c201 is provided at one end of the support arm 2; the connecting block c201 is inserted into the middle of the connecting buckle C13, and the bolt 14 sequentially passes through the connecting buckle C13 and the connecting block c201 and is used in cooperation with the nut 15.
[0025] Specifically, the inner diameter of the rolling bearing 21 is 50 mm and the outer diameter is 90 mm.
[0026] Specifically, the size of the support arm 2 is 2 mm × 5 mm; the guiding ring 16 is bent from 8# iron wire into a circular ring with a diameter of 6 mm.
[0027] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and its improved concept of the present utility model, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.
Claims
1. A photovoltaic DC cable pay-out device, comprising a first vertical pole (1), a bottom plate (5), and a second vertical pole (6), characterized in that: The first vertical pole (1) and the second vertical pole (6) are both cylindrical; the first vertical pole (1) is longer than the second vertical pole (6); the upper end of the first vertical pole (1) is sleeved with one end of the cross bar (3) by a folding structure; the other end of the cross bar (3) is vertically movably connected to a guide pulley (7); the inner side of the upper end of the first vertical pole (1) is movably connected to a support rod (4) near the folding structure; the support rod (4) is lifted up and used in conjunction with the cross bar (3) to form a triangular stable support structure; a rolling bearing (21) is welded to the top of the second vertical pole (6); the inner side wall of the rolling bearing (21) is welded and fixed to the outer wall of the second vertical pole (6), and the rolling bearing (21) and the second vertical pole (6) are interference fit Use; the horizontal end of the outer wall of the rolling bearing (21) is vertically connected to one end of the support arm (2); the other end of the support arm (2) is parallelly welded with a guide ring (16); the outer walls of the lower ends of the first vertical pole (1) and the second vertical pole (6) are both provided with external threads; the bottom plate (5) is in a rectangular flat shape; the upper plate surface of the bottom plate (5) is respectively provided with a connecting groove 1 (501) and a connecting groove 2 (502); the inner walls of the connecting groove 1 (501) and the connecting groove 2 (502) are both provided with internal threads; the external thread at the lower end of the first vertical pole (1) is threadedly connected and fixed with the internal thread of the connecting groove 1 (501); the external thread at the lower end of the second vertical pole (6) is threadedly connected and fixed with the internal thread of the connecting groove 2 (502).
2. A photovoltaic DC cable pay-out device according to claim 1, characterized in that: The folding structure is composed of a right-angle folding tube (8), a connecting tube (9) and a rotating shaft one (10); the lower end of the right-angle folding tube (8) is hollow and is sleeved and fixed to the upper end of the first vertical pole (1); a connecting buckle A (801) is provided on the upper end surface of the right-angle folding tube (8); a connecting block a (901) is provided on one end surface of the connecting tube (9); the connecting block a (901) is inserted in the middle of the connecting buckle A (801) and is movably connected by the rotating shaft one (10); the other end of the connecting tube (9) is hollow and is sleeved and fixed to one end of the cross bar (3).
3. A photovoltaic DC cable pay-off device according to claim 1, characterized in that: The other end of the cross bar (3) is connected to the guide pulley (7) by a connecting piece; the connecting piece comprises a U-shaped clamp a (17), a U-shaped clamp b (19), a rotating shaft three (18) and a rotating shaft four (20); the open end of the U-shaped clamp b (19) is upwardly movably connected to the other end of the cross bar (3) by the rotating shaft four (20); the open end of the U-shaped clamp a (17) is downwardly movably connected to the guide pulley (7) by the rotating shaft three (18); the closed ends of the U-shaped clamp a (17) and the U-shaped clamp b (19) are arranged opposite to each other and are movably connected by the rotating shaft five (22).
4. A photovoltaic DC cable pay-out device according to claim 1, characterized in that: A connecting buckle B (11) is vertically provided at one end of the support rod (4); a connecting block b (101) is provided near the inner side of the folding structure of the first vertical rod (1); the connecting block b (101) is inserted in the middle of the connecting buckle B (11) and is movably connected by a second rotating shaft (12); a groove (301) is provided on the lower side of the cross bar (3); the other end of the support rod (4) is rotated upwards and is buckled and fixed to the groove (301) of the cross bar (3).
5. A photovoltaic DC cable pay-out device according to claim 1, characterized in that: A connecting buckle C (13) is provided on a side wall of one side of the rolling bearing (21); the support arm (2) is in a rectangular parallelepiped shape; a connecting block C (201) is provided at one end of the support arm (2); the connecting block C (201) is inserted in the middle of the connecting buckle C (13); a bolt (14) sequentially penetrates the connecting buckle C (13) and the connecting block C (201) and is used in conjunction with a nut (15).
6. A photovoltaic DC cable pay-out device according to claim 1, characterized in that: The inner diameter of the rolling bearing (21) is 50 mm, and the outer diameter is 90 mm.
7. A photovoltaic DC cable pay-out device according to claim 1, characterized in that: The support arm (2) has a size of 2 mm×5 mm; the guide ring (16) is made of 8# iron wire bent into a circular ring with a diameter of 6 mm.