Safety protection device for photovoltaic circuit

Abstract

The utility model discloses a safety protection device for a photovoltaic line, which comprises a protection box, the front and rear end faces of the protection box are both provided with a plurality of groups of through grooves, the interiors of the plurality of groups of through grooves at the same side are all provided with mounting screws, and the two sides of the protection box are both provided with connecting screws in a sliding and penetrating manner. Clamping plates are mounted at the external ends of the two sets of connecting screws, two sets of connecting nuts sleeve the side walls of the two sets of connecting screws, two sets of moving plates are arranged in the protection box, and two sets of mounting nuts and two sets of sleeving hole plates sleeve the side walls of one set of mounting screws on the same side. The photovoltaic line safety protection device has the beneficial effects that the photovoltaic line safety protection device is provided with the through groove and the mounting screw rod, and the through groove and the mounting screw rod are arranged, so that the photovoltaic line safety protection device is provided with a winding structure and can wind and clamp a photovoltaic cable, and continuous use of the photovoltaic line safety protection device is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic line technology, and more specifically, to a safety protection device for photovoltaic lines. Background Technology

[0002] A photovoltaic (PV) line is a circuit system that connects PV panels, controllers, inverters, and batteries to transmit, control, convert, and store the DC power generated by the PV panels. When actually laying PV lines, safety protection devices are required to cover and protect the connection points of the PV lines. In practice, PV lines have the advantages of simple operation, stable structure, and safe use.

[0003] Existing safety protection devices lack a winding structure when connecting photovoltaic cables. Excessively long photovoltaic cables are exposed to the air and are easily snagged by foreign objects, eventually causing the connected photovoltaic cables to separate. This poses a potential hazard to the continued use of existing safety protection devices. In addition, when it is necessary to disassemble the connected photovoltaic cables, operators need to disassemble the connected photovoltaic cables one by one, which involves many repetitive steps and reduces the practicality of existing safety protection devices. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a safety protection device for photovoltaic lines, which has a winding structure that can wind up and clamp photovoltaic cables and facilitate the disassembly of connected photovoltaic cables, thereby solving the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the advantages of having a winding structure that can wind and clamp photovoltaic cables and facilitate the disassembly of connected photovoltaic cables, the specific technical solution adopted by this utility model is as follows: A safety protection device for photovoltaic lines includes a protective box. The front and rear end faces of the protective box are provided with multiple sets of through slots. The interior of the multiple sets of through slots on the same side is equipped with mounting screws. Connecting screws slide through both sides of the protective box. Clamping plates are installed on the outer ends of the two sets of connecting screws. Two sets of connecting nuts are sleeved on the side walls of the two sets of connecting screws. The interior of the protective box is provided with two sets of movable plates. The side wall of the mounting screw on the same side is sleeved with two sets of mounting nuts and two sets of socket plates.

[0008] Furthermore, four sets of connecting rods slide through both sides of the protective box, and connecting plates are installed at both ends of the two sets of movable plates. The inner ends of the two sets of connecting rods on the same side are fixedly connected to the connecting plate on the same side. Limiting plates are installed on the outer ends of the two sets of connecting rods on the same side. Springs are sleeved on the side walls of the eight sets of connecting rods. Two sets of threaded through holes are opened on the front and rear end faces of the protective box, and limiting bolts pass through the interior of the four sets of threaded through holes.

[0009] Furthermore, the four sets of threaded through holes and the four sets of limit bolt threads are mutually engaged.

[0010] Furthermore, multiple through holes are provided on the end faces of both sets of movable plates.

[0011] Furthermore, the upper part of the protective box is fitted with a door via a hinge.

[0012] Furthermore, the two sets of connecting screws and the four sets of connecting nuts are threadedly engaged with each other.

[0013] Furthermore, the mounting screws on the same side and the mounting nuts on the same side are threadedly engaged with each other.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a safety protection device for photovoltaic lines, which has the following beneficial effects:

[0016] (1) This utility model is equipped with a through groove and mounting screws. When actually using the photovoltaic line safety protection device, the operator can use his hand to wrap a photovoltaic cable around the side wall of a set of mounting screws on the same side. Then, the installation screws on the same side and the two sets of mounting nuts on the same side are engaged with each other. The operator can rotate the two sets of mounting nuts on the same side clockwise and counterclockwise by hand. After the two sets of socket plates on the same side clamp the wrapped photovoltaic cable, the above operation can be repeated to realize the installation of multiple photovoltaic cables. Then, the two sets of clamping plates can be moved. When the two sets of clamping plates are in contact with the photovoltaic frame, the two sets of connecting screws and the four sets of connecting nuts are engaged with each other. The operator can rotate the four sets of connecting nuts clockwise and counterclockwise by hand. When the four sets of connecting nuts are in close contact with the protective box, the installation of the protective box is completed. At this time, foreign objects cannot hook multiple photovoltaic cables out of the protective box. Through the through groove and mounting screws, there is a winding structure that can wind up and clamp the photovoltaic cable, which provides a guarantee for the continuous use of the photovoltaic line safety protection device.

[0017] (2) This utility model is equipped with a movable plate. According to the above operation, after multiple photovoltaic cables are installed, one photovoltaic cable can be passed through a set of through holes by hand, and then connected to another photovoltaic cable. The connection of the remaining multiple photovoltaic cables is the same. When it is necessary to disassemble the connected photovoltaic cables, the four sets of threaded through holes and the four sets of limit bolt threads cooperate with each other. The operator rotates the four sets of limit bolts counterclockwise by hand, and then moves the two sets of movable plates in the opposite direction. The two sets of movable plates can pull the multiple photovoltaic cables apart. During this process, the four sets of connecting plates will squeeze or stretch the eight sets of springs. After the multiple photovoltaic cables are disassembled, the four sets of limit plates are released. The eight sets of springs, under their own elastic force, can push the two sets of movable plates to reset. Then, the four sets of fastening bolts are rotated clockwise. After the four sets of fastening bolts are reset, the two sets of movable hole plates can be prevented from moving accidentally. Through the movable plate, the disassembly of the connected photovoltaic cables can be conveniently realized, which improves the practicality of the safety protection device for photovoltaic lines. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of a safety protection device for photovoltaic lines according to an embodiment of the present utility model;

[0020] Figure 2 This is a top view of a photovoltaic line safety protection device according to an embodiment of the present utility model;

[0021] Figure 3 This is a perspective view of the socket plate according to an embodiment of the present utility model;

[0022] Figure 4 According to the embodiments of this utility model Figure 1 A magnified view of A in the middle.

[0023] In the picture:

[0024] 1. Protective box; 2. Through slot; 3. Mounting screw; 4. Moving plate; 5. Connecting screw; 6. Clamping plate; 7. Connecting nut; 8. Sleeve hole plate; 9. Mounting nut; 10. Through hole; 11. Connecting rod; 12. Connecting plate; 13. Limiting plate; 14. Spring; 15. Box door; 16. Limiting bolt. Detailed Implementation

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0026] According to an embodiment of the present invention, a safety protection device for photovoltaic lines is provided.

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4 As shown, a safety protection device for photovoltaic lines according to an embodiment of this utility model includes a protective box 1. Multiple sets of through slots 2 are provided on both the front and rear ends of the protective box 1. Each set of through slots 2 on the same side has an installation screw 3 installed inside. Connecting screws 5 slide through both sides of the protective box 1. Clamping plates 6 are installed on the outer ends of both sets of connecting screws 5. Two sets of connecting nuts 7 are sleeved on the side walls of both sets of connecting screws 5. Two sets of movable plates 4 are provided inside the protective box 1. Two sets of installation nuts 9 and two sets of socket plates 8 are sleeved on the side walls of each set of installation screws 3 on the same side. Through the through slots 2 and installation screws 3, a winding structure is provided, capable of winding and clamping photovoltaic cables, ensuring the continuous use of the safety protection device for photovoltaic lines.

[0028] In one embodiment, four sets of connecting rods 11 slide through both sides of the protective box 1, and connecting plates 12 are installed at both ends of the two sets of movable plates 4. The inner ends of the two sets of connecting rods 11 on the same side are fixedly connected to the connecting plate 12 on the same side, and the outer ends of the two sets of connecting rods 11 on the same side are equipped with limit plates 13. Springs 14 are sleeved on the side walls of the eight sets of connecting rods 11. Two sets of threaded through holes are opened on the front and rear end faces of the protective box 1, and limit bolts 16 pass through the interior of the four sets of threaded through holes. Through the movable plates 4, the connected photovoltaic cables can be easily disassembled, which improves the practicality of the safety protection device for photovoltaic lines.

[0029] In one embodiment, the four sets of threaded through holes are threadedly engaged with the four sets of limit bolts 16, which facilitates the adjustment of the position of the four sets of limit bolts 16.

[0030] In one embodiment, multiple through holes 10 are provided on the end faces of both sets of movable plates 4.

[0031] In one embodiment, the upper part of the protective box 1 is fitted with a door 15 via a hinge.

[0032] In one embodiment, the two sets of connecting screws 5 and the four sets of connecting nuts 7 are threaded together, which facilitates the adjustment of the usage position of the four sets of connecting nuts 7.

[0033] In one embodiment, a set of mounting screws 3 on the same side and two sets of mounting nuts 9 on the same side are threaded together to facilitate adjustment of the usage position of the two sets of mounting nuts 9 on the same side.

[0034] Working Principle: In actual use of the photovoltaic line safety protection device, the operator can manually wind a photovoltaic cable around the side wall of a set of mounting screws 3 on the same side. Then, utilizing the threaded engagement of the mounting screws 3 and the two sets of mounting nuts 9 on the same side, the operator can manually rotate the two sets of mounting nuts 9 clockwise and counterclockwise. Once the two sets of socket plates 8 on the same side clamp the wound photovoltaic cable, the above operation can be repeated to install multiple photovoltaic cables. Afterwards, the two sets of clamping plates 6 can be moved. When the two sets of clamping plates 6 contact the photovoltaic frame, utilizing the threaded engagement of the two sets of connecting screws 5 and the four sets of connecting nuts 7, the operator can manually rotate the four sets of connecting nuts 7 clockwise and counterclockwise. When the four sets of connecting nuts 7 are in tight contact with the protective box 1, the installation of the protective box 1 is complete. At this point, external objects cannot hook or pull multiple photovoltaic cables away from the protective box 1. Through the provided through slot 2 and mounting screws 3, a winding structure is provided, capable of winding and clamping the photovoltaic cables, ensuring the continuous use of the photovoltaic line safety protection device. As can be seen from the above operation, after multiple photovoltaic cables are installed, one photovoltaic cable can be manually passed through a set of through holes 10, and then connected to another photovoltaic cable. The connection of the remaining multiple photovoltaic cables is the same. When it is necessary to disassemble the connected photovoltaic cables, the four sets of threaded through holes and the four sets of limit bolts 16 are engaged with each other. The operator can rotate the four sets of limit bolts 16 counterclockwise by hand, and then move the two sets of moving plates 4 in the opposite direction. The two sets of moving plates 4 can pull the multiple photovoltaic cables apart. During this process, the four sets of connecting plates 12 will squeeze or stretch the eight sets of springs 14. After the multiple photovoltaic cables are disassembled, the four sets of limit plates 13 are released. The eight sets of springs 14, under their own elastic force, can push the two sets of moving plates 4 to reset. Then, the four sets of fastening bolts are rotated clockwise. After the four sets of fastening bolts are reset, the two sets of moving plate holes can be prevented from moving accidentally. The moving plates 4 can be set to facilitate the disassembly of connected photovoltaic cables, which improves the practicality of the safety protection device for photovoltaic lines.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A safety protection device for photovoltaic lines, comprising a protective box (1), characterized in that, The protective box (1) has multiple sets of through slots (2) on its front and rear ends. Each set of through slots (2) on the same side is equipped with an installation screw (3). Both sides of the protective box (1) are slidably connected by connecting screws (5). Each set of connecting screws (5) has a clamp (6) installed on its outer end. Each set of connecting screws (5) has two sets of connecting nuts (7) sleeved on its sidewall. The protective box (1) has two sets of moving plates (4) inside. Each set of installation screws (3) on the same side has two sets of installation nuts (9) and two sets of socket plates (8) sleeved on its sidewall.

2. The safety protection device for photovoltaic lines according to claim 1, characterized in that, Four sets of connecting rods (11) slide through both sides of the protective box (1). Connecting plates (12) are installed at both ends of the two sets of moving plates (4). The inner ends of the two sets of connecting rods (11) on the same side are fixedly connected to the connecting plates (12) on the same side. Limiting plates (13) are installed on the outer ends of the two sets of connecting rods (11) on the same side. Springs (14) are sleeved on the side walls of the eight sets of connecting rods (11). Two sets of threaded through holes are opened on the front and rear end faces of the protective box (1). Limiting bolts (16) pass through the interior of the four sets of threaded through holes.

3. A safety protection device for photovoltaic lines according to claim 2, characterized in that, The four sets of threaded through holes and the four sets of limit bolts (16) threads are mutually engaged.

4. The safety protection device for photovoltaic lines according to claim 1, characterized in that, Multiple sets of through holes (10) are provided on the end faces of both sets of movable plates (4).

5. A safety protection device for photovoltaic lines according to claim 1, characterized in that, The upper part of the protective box (1) is fitted with a door (15) via a hinge.

6. A safety protection device for photovoltaic lines according to claim 1, characterized in that, The two sets of connecting screws (5) and the four sets of connecting nuts (7) are threadedly engaged with each other.

7. A safety protection device for photovoltaic lines according to claim 1, characterized in that, The mounting screws (3) on the same side and the mounting nuts (9) on the same side are threadedly engaged.

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