Photovoltaic cable laying device

Abstract

The utility model belongs to the field of photovoltaic facilities, and discloses a photovoltaic cable laying device, which comprises a chassis, a wire coil and a mounting rod, a positioning groove is vertically formed in the middle of the upper surface of the chassis, and a limiting ring is fixedly mounted on the upper surface of the chassis; the inner side and the outer side of the upper surface of the limiting ring are inclined faces inclining downwards, the wire coil is placed on the inner side of the upper surface of the limiting ring, and a wire coil hole vertically penetrating through the wire coil is formed in the middle of the wire coil in the axial direction. The length of the mounting rod is larger than the height of the wire coil hole, the lower end of the mounting rod is detachably and vertically inserted into the positioning groove, the upper end of the mounting rod is horizontally and rotatably connected with a rotating rod with the length larger than the radius of the chassis, and a threading hole is formed in the end, away from the mounting rod, of the rotating rod. According to the utility model, cables wound on wire coils with different sizes can be unfolded, and the rotating device is prevented from toppling over in the unfolding process, so that the stability and the smoothness of the cable unfolding process are ensured, and the cable unfolding device is suitable for cable unfolding.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic facilities, specifically a photovoltaic cable laying device. Background Technology

[0002] During the deployment of photovoltaic cables, a deployment device is needed to deploy the cables in order to avoid friction between the cables and the ground or the upper surface of the cable reel.

[0003] Existing photovoltaic cable laying devices include a cable reel, a rotating device, and a support frame. The rotating device, positioned on top of the cable reel, comprises a base, a vertical rod fixed to the base, and a rotating rod fixed to the top of the vertical rod and capable of horizontal rotation. A through-hole for the cable to pass through is located at the end of the rotating rod, and the length of the rotating rod is greater than the radius of the upper surface of the cable reel to prevent friction between the cable and the upper surface sidewall of the reel after it is drawn off. The support frame includes a base plate fixed to the ground next to the cable reel, a vertical support rod fixed to the base plate, and a horizontal support rod fixed to the top of the vertical support rod. A through-hole for the cable to pass through is located at the end of the horizontal support rod. After the cable is drawn off the reel, it passes sequentially through the through-hole at the end of the rotating rod and then through the through-hole at the end of the horizontal support rod, thus pulling the cable to a distance, achieving the cable laying process.

[0004] For cable reels of different diameters, rotating rods of different lengths are required to prevent friction between the cable and the upper surface of the reel. This necessitates replacing the rotating device with a suitable one based on the reel's size, thus reducing the versatility and flexibility of the rotating mechanism. Furthermore, during cable pulling, friction between the cable and the rotating rod and the through-holes at the ends of the transverse support rods may pull the rotating rod towards the support rods, potentially causing the rotating device to tip over. In this case, workers must manually reposition the rotating device back to the center of the reel, increasing labor intensity, reducing cable laying efficiency, and affecting the stability and smoothness of the cable laying process. Utility Model Content

[0005] To address the aforementioned shortcomings in the existing technology, this utility model aims to provide a photovoltaic cable laying device that can lay cables wound on reels of different sizes and prevent the rotating device from tipping over during the laying process, thereby achieving stability and smoothness in the cable laying process.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A photovoltaic cable laying device includes a chassis, a cable reel, and a mounting rod. A positioning groove is vertically formed in the middle of the upper surface of the chassis, and a limiting ring is fixedly installed on the upper surface of the chassis. The inner and outer sides of the upper surface of the limiting ring are both downwardly inclined slopes. The cable reel is placed on the inner side of the upper surface of the limiting ring, and a cable reel hole is formed vertically through the cable reel in the middle of the cable reel. The length of the mounting rod is greater than the height of the cable reel hole. The lower end of the mounting rod is detachably and vertically inserted into the positioning groove. The upper end of the mounting rod is horizontally and rotatably connected to a rotating rod with a length greater than the radius of the chassis. A wire-passing hole is formed at the end of the rotating rod away from the mounting rod. An expansion fixing mechanism for limiting the mounting rod and positioning it in the middle of the cable reel hole is detachably and fixedly provided on the mounting rod. The positioning groove, the limiting ring, the cable reel hole, and the mounting rod are all coaxially arranged.

[0007] As a limitation of this utility model: a bearing is fixedly provided at the upper end of the mounting rod, and the rotating rod is rotatably connected to the upper end of the mounting rod through the bearing.

[0008] As a limitation of this utility model: the expansion and fixing mechanism includes a fixing component, a tension spring, a slip ring, and a connecting rod. The fixing component is fixedly installed on the lower part of the mounting rod, and a tension spring is fixedly installed on the upper surface of the fixing component. A slip ring sleeved on the mounting rod is fixedly installed on the upper end of the tension spring. A connecting rod that can expand outward in the middle is rotatably connected uniformly between the fixing component and the slip ring. The upper end and the lower end of the connecting rod are rotatably connected to the slip ring and the fixing component, respectively.

[0009] As a limitation of this utility model: the fixing component is an annular protrusion with an outer diameter between the mounting rod and the diameter of the coil hole.

[0010] As a limitation of this utility model: the connecting rod includes two rod-shaped components with their ends hinged to each other, and the ends of the two rod-shaped components away from the hinge are respectively rotatably connected to the sidewalls of the annular protrusion and the slip ring.

[0011] As a limitation of this utility model: the photovoltaic cable deployment device further includes an upper gripping part and a lower gripping part that are easy to hold with both hands. The upper gripping part is fixedly installed at the upper end of the mounting rod, and the bearing is fixedly installed at the upper end of the upper gripping part. The lower gripping part is fixedly installed at the upper end of the slip ring and is sleeved on the mounting rod.

[0012] As a limitation of this utility model: the upper gripping part includes a cylindrical structure with the same diameter as the mounting rod, and an annular protrusion with a diameter larger than that of the mounting rod is fixedly provided at the lower end of the cylindrical structure; the outer diameter of the lower gripping part is larger than that of the mounting rod, and an annular protrusion with a diameter larger than that of the mounting rod is fixedly provided at the upper end of the lower gripping part.

[0013] By adopting the above technical solution, the beneficial effects achieved by this utility model compared with the prior art are as follows: By horizontally and rotatably connecting a rotating rod with a length greater than the radius of the base plate to the upper end of the mounting rod, when the diameter of the cable reel changes, as long as the cable reel is kept in the middle of the limiting ring, the rotation axis of the rotating rod at the top of the mounting rod inserted in the positioning groove will always coincide with the axis of the cable reel. Therefore, the photovoltaic cable laying device can adapt to cable reels of various diameters without the need to prepare rotating rods or other accessories of specific lengths for cable reels of different diameters, thereby enhancing the versatility and flexibility of the photovoltaic cable laying device.

[0014] Because a connecting rod that expands outwards in the middle is evenly and fixedly connected between the annular protrusion and the slip ring, it ensures that the mounting rod is positioned in the middle of the cable reel hole, thus limiting the mounting rod's position and preventing the lower end of the mounting rod from dislodging from the positioning groove and moving upwards during cable laying. Compared to the existing technology that places the rotating device on the cable reel, the above-mentioned photovoltaic cable laying device inserts a portion of the mounting rod into the positioning groove after passing it through the cable reel, and further limits its position using the hinge on the connecting rod, preventing the mounting rod from tipping over during laying and achieving stability and smoothness in the cable laying process.

[0015] Furthermore, the mounting rod features upper and lower grips for easy handling, simplifying operation and reducing worker fatigue. The mounting rod can be easily removed from the chassis via positioning slots, facilitating inspection and replacement of various components mounted on it, and aiding in long-term maintenance and upkeep.

[0016] In summary, the photovoltaic cable laying device with the above structure can lay cables wound on reels of different sizes and prevents the rotating device from tipping over during the laying process, thus ensuring the stability and smoothness of the cable laying process. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0019] Figure 2 This is an exploded view of an embodiment of the present invention;

[0020] Figure 3 This is a left view of an embodiment of the present utility model;

[0021] Figure 4 This is an embodiment of the present utility model. Figure 3 A cross-sectional view of plane AA.

[0022] In the diagram: 1-chassis, 2-coil, 3-mounting rod, 4-positioning groove, 5-limiting ring, 6-coil hole, 7-rotating rod, 8-threading hole, 9-bearing, 10-annular protrusion, 11-tension spring, 12-slip ring, 13-connecting rod, 14-upper grip, 15-lower grip, 16-hinge. Detailed Implementation

[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the photovoltaic cable laying device described herein is a preferred embodiment and is only used for illustration and explanation of the present invention, and does not constitute a limitation thereof.

[0024] The directional terms or positional relationships used in this utility model, such as "up," "down," "left," and "right," are based on the positional relationships in the accompanying drawings of this utility model. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component must have a specific orientation, or that it must be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the content protected by this utility model.

[0025] A photovoltaic cable deployment device, such as Figures 1 to 4 As shown, the system includes a chassis 1, a coil 2, and a mounting rod 3. A cylindrical positioning groove 4 is vertically formed in the center of the upper surface of the chassis 1 for the lower end of the mounting rod 3 to be inserted. The chassis 1 is a square plate. A limiting ring 5 with the same diameter as the side length of the chassis 1 is fixedly installed on the upper surface of the chassis 1. The limiting ring 5 is an annular structure, coaxially arranged with the positioning groove 4. The lower surface of the limiting ring 5 is flat, while the inner and outer sides of the upper surface of the limiting ring 5 are downwardly sloping surfaces. The coil 2 is placed inside the upper surface of the limiting ring 5, and the diameter of the bottom end of the coil 2 is smaller than the diameter of the circumference of the highest point of the upper surface of the limiting ring 5. If the diameter of the bottom end of the coil 2 is greater than or equal to the diameter of the circumference of the highest point of the upper surface of the limiting ring 5, the coil 2 cannot be completely placed inside the limiting ring 5 or on the sloping surface, and therefore the limiting ring 5 cannot be used to limit the coil 2. After placing the coil 2 on the inclined surface of the limiting ring 5, the construction personnel only need to apply a small horizontal force to the coil 2. Under the action of gravity, the coil 2 will slide into the inside of the limiting ring 5. Therefore, the construction personnel can easily push the coil 2 laterally into the middle of the limiting ring 5, which improves the installation efficiency of the device.

[0026] A wire reel hole 6 is vertically inserted through the center of the wire reel 2, with a diameter larger than that of the mounting rod 3 and a height smaller than that of the mounting rod 3. The mounting rod 3 can pass through the wire reel 2 from top to bottom, and its lower end is detachably inserted vertically into the positioning groove 4. A rotating rod 7 with a length greater than the radius of the base plate 1 is horizontally rotatably connected to the upper end of the mounting rod 3 to prevent the cable from contacting and rubbing against the upper surface of the wire reel 2 after being led out. A wire-passing hole 8 is provided at the end of the rotating rod 7 away from the mounting rod 3 for the photovoltaic cable to pass through. By passing the cable wound on the wire reel 2 through the wire-passing hole 8, the cable can move together with the rotating rod 7.

[0027] Because the limiting ring 5 and the positioning groove 4 are coaxially arranged, and the axial direction of the coil 2, which is completely located within the limiting ring 5, is the same as that of the positioning groove 4, when the diameter of the coil 2 changes, as long as the coil 2 is in the middle of the limiting ring 5, the rotation axis of the rotating rod 7 at the top of the mounting rod 3 inserted in the positioning groove 4 will always coincide with the axis of the coil 2. Therefore, the photovoltaic cable laying device with the above structure can adapt to coils of various diameters without the need to prepare rotating rods or other accessories of specific lengths for coils of different diameters, thereby enhancing the versatility and flexibility of the photovoltaic cable laying device. At the same time, the positioning groove 4, the limiting ring 5, the coil 2, and the mounting rod 3 are all coaxially arranged, which can ensure that their axes are aligned with high precision, ensuring the concentricity of each component and reducing the problem of rotational instability caused by the rotation axis of the rotating rod 7 deviating from the axis of the coil 2, further improving the stability of the cable laying process.

[0028] Furthermore, a bearing 9 is fixedly installed at the upper end of the mounting rod 3, and the rotating rod 7 is rotatably connected to the upper end of the mounting rod 3 via the bearing 9. By installing the bearing 9 between the two components, the frictional force when the rotating rod 7 rotates relative to the mounting rod 3 can be reduced, improving the smoothness of the rotation process. At the same time, an expansion fixing mechanism is detachably fixedly installed on the mounting rod 3 to limit the mounting rod 3 and position it in the middle of the coil hole 6.

[0029] Specifically, the expansion and fixing mechanism includes a fixing component 10 for fixing the tension spring 11, the tension spring 11, a slip ring 12, and a connecting rod 13. The fixing component 10 is fixedly installed on the lower part of the mounting rod 3. In this embodiment, the fixing component 10 is an annular protrusion with an outer diameter between the mounting rod 3 and the diameter of the coil hole 6. The upper surface of the fixing component 10 is fixedly provided with a tension spring 11 that has an elastic telescopic function. The upper end of the tension spring 11 is fixedly provided with a slip ring 12 that is sleeved on the mounting rod 3. The outer diameter of the slip ring 12 is between the diameter of the mounting rod 3 and the diameter of the coil hole 6, and the slip ring 12 can move vertically along the side wall of the mounting rod 3.

[0030] A connecting rod 13, which expands outward in the middle, is rotatably connected uniformly between the fixed component 10 and the slip ring 12. The upper and lower ends of the connecting rod 13 are rotatably connected to the side walls of the slip ring 12 and the fixed component 10, respectively. Specifically, there are three connecting rods 13, with their two ends evenly distributed and fixed to the side walls of the slip ring 12 and the fixed component 10. Each connecting rod 13 includes two rod-shaped components with their ends hinged to each other. The ends of the two rod-shaped components away from the hinge portion 16 are rotatably connected to the side walls of the fixed component 10 and the slip ring 12, respectively.

[0031] When the tension spring 11 is in a free state, the connecting rod 13 is in an outward expanding state. At this time, the diameter of the circle defined by the three hinge parts 16 in the horizontal direction is larger than the diameter of the coil hole 6. When it is necessary to insert the mounting rod 3 into the positioning groove 4, the slip ring 12 is pulled upward, and the connecting rod 13 changes from outward expansion to inward contraction until the diameter of the circle defined by the hinge parts 16 is smaller than the diameter of the coil hole 6. Then, the mounting rod 3 can be inserted into the positioning groove 4 after passing through the coil hole 6. Subsequently, the slip ring 12 is released, and it will move downward. The connecting rod 13 gradually expands outward. When the hinge parts 16 simultaneously abut against and squeeze against the side wall of the coil hole 6, the mounting rod 3 is limited and positioned in the middle of the coil hole.

[0032] The hinge 16 of the connecting rod 13 can expand outward until it simultaneously contacts and presses against the side wall of the coil hole 6, further fixing the relative position between the mounting rod 3 and the coil hole 6, and ensuring that the mounting rod 3 is located in the middle position of the coil hole 6. This limits the mounting rod 3 and prevents the lower end of the mounting rod 3 from dislodging from the positioning groove 4 and moving upward during cable laying. Compared with the prior art method of placing the rotating device on the coil, the above-mentioned photovoltaic cable laying device inserts a portion of the mounting rod 3 into the positioning groove 4 after passing through the coil 2, and further limits it using the hinge 16 on the connecting rod 13, preventing the mounting rod 3 from tipping over during laying, thus achieving stability and smoothness in the cable laying process.

[0033] Furthermore, the photovoltaic cable deployment device also includes an upper gripping part 14 and a lower gripping part 15 for easy two-handed gripping. The upper gripping part 14 is fixedly mounted on the upper end of the mounting rod 3, and the bearing 9 is fixedly mounted on the upper end of the upper gripping part 14. Specifically, the upper gripping part 14 includes a cylindrical structure with the same diameter as the mounting rod 3. An annular protrusion with a diameter larger than that of the mounting rod 3 is fixedly mounted on the lower end of the cylindrical structure. During the process of inserting the mounting rod 3 downward into the positioning groove 4, the annular protrusion can limit the position of one hand. The lower gripping part 15 is fixedly mounted on the upper end of the slip ring 12 and is an integral structure with the slip ring 12. The lower gripping part 15 is sleeved on the mounting rod 3, and the outer diameter of the lower gripping part 15 is larger than the diameter of the mounting rod 3. An annular protrusion with a diameter larger than that of the mounting rod 3 is fixedly mounted on the upper end of the lower gripping part 15, so that the position of the other hand can be restricted between the annular protrusion of the lower gripping part 15 and the slip ring 12.

[0034] By pulling upwards or pressing downwards on the lower grip 15, the slip ring 12 can move in the same direction as the lower grip 15, thereby achieving the extension and retraction of the connecting rod 13 rotatably connected to the slip ring 12. Construction workers only need to grip the two grips with both hands to fix or remove the mounting rod 3 from the positioning groove 4, facilitating operation and reducing labor intensity. Through the positioning groove 4, the mounting rod 3 can be easily disassembled from the chassis 1, facilitating the inspection and replacement of various components mounted on the mounting rod 3, and benefiting maintenance and upkeep after long-term use.

[0035] When using this embodiment, first place the coil 2 inside the upper surface of the limiting ring 5, making the coil 2 coaxial with the positioning groove 4. The construction worker grips the upper holding part 14 and the lower holding part 15 with both hands respectively, pulls the slip ring 12 upward, inserts the lower end of the mounting rod 3 into the positioning groove 4, and avoids the hinge part 16 of the connecting rod 13 from contacting the side wall of the coil hole 6. Then, release the upper holding part 14 and the lower holding part 15, and release the slip ring 12, so that the slip ring 12 drives the tension spring 11 and the upper end of the connecting rod 13 to move downward, and gradually expands the hinge part 16 of the connecting rod 13 outward, so that the hinge part 16 is squeezed against the side wall of the coil hole 6 to fix the mounting rod 3. Finally, the cable wound on the coil 2 is passed through the cable hole 8. By pulling the cable to a distance, the rotating rod 7 can rotate with the extension of the cable, thereby achieving smooth cable deployment.

Claims

1. A photovoltaic cable laying device, characterized in that: Includes a chassis, cable reel, and mounting rod. A positioning groove is vertically opened in the middle of the upper surface of the chassis, and a limit ring is fixedly installed on the upper surface of the chassis. The inner and outer sides of the upper surface of the limiting ring are both downward sloping surfaces. The wire spool is placed on the inner side of the upper surface of the limiting ring. A wire spool hole is opened vertically through the wire spool in the middle of the axial direction. The length of the mounting rod is greater than the height of the wire reel hole. The lower end of the mounting rod can be detached and vertically inserted into the positioning groove. The upper end of the mounting rod is horizontally rotatably connected to a rotating rod with a length greater than the radius of the chassis. A wire-passing hole is opened at the end of the rotating rod away from the mounting rod. The mounting rod is detachably and fixedly equipped with an expansion fixing mechanism for limiting the mounting rod and positioning it in the middle of the wire coil hole; The positioning groove, limit ring, wire coil hole, and mounting rod are all coaxially arranged.

2. The photovoltaic cable laying device according to claim 1, characterized in that: A bearing is fixedly installed at the upper end of the mounting rod, and the rotating rod is rotatably connected to the upper end of the mounting rod through the bearing.

3. The photovoltaic cable laying device according to claim 2, characterized in that: The expansion and fixing mechanism includes a fixing component, a tension spring, a slip ring, and a connecting rod. The fixing component is fixedly installed at the lower part of the mounting rod, and a tension spring is fixedly installed on the upper surface of the fixing component. A slip ring is fixedly installed on the upper end of the tension spring and sleeved on the mounting rod. A connecting rod that can expand outward in the middle is rotatably connected uniformly between the fixing component and the slip ring. The upper and lower ends of the connecting rod are rotatably connected to the slip ring and the fixing component, respectively.

4. The photovoltaic cable laying device according to claim 3, characterized in that: The fixing component is an annular protrusion with an outer diameter between the mounting rod and the diameter of the wire coil hole.

5. The photovoltaic cable laying device according to claim 4, characterized in that: The connecting rod includes two rod-shaped components with their ends hinged together. The ends of the two rod-shaped components away from the hinge are rotatably connected to the sidewalls of the annular protrusion and the slip ring, respectively.

6. The photovoltaic cable laying device according to claim 5, characterized in that: It also includes an upper grip and a lower grip for easy two-handed gripping. The upper grip is fixedly mounted on the upper end of the mounting rod, and the bearing is fixedly mounted on the upper end of the upper grip. The lower grip is fixedly mounted on the upper end of the slip ring and is sleeved on the mounting rod.

7. The photovoltaic cable laying device according to claim 6, characterized in that: The upper grip includes a cylindrical structure with the same diameter as the mounting rod, and an annular protrusion with a diameter larger than that of the mounting rod is fixedly provided at the lower end of the cylindrical structure; the outer diameter of the lower grip is larger than that of the mounting rod, and an annular protrusion with a diameter larger than that of the mounting rod is fixedly provided at the upper end of the lower grip.

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