Photovoltaic cable laying device

Abstract

The invention 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 cable unwinding device, cables wound on wire coils of different sizes can be unwound, the rotating device is prevented from toppling over in the unwinding process, and therefore the stability and smoothness of the cable unwinding process are ensured, and the cable unwinding device is suitable for cable unwinding.

Description

Technical Field

[0001] The invention belongs to the field of photovoltaic facilities, in particular to a photovoltaic cable deployment device. Background Art

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

[0003] The existing photovoltaic cable deployment device includes a cable drum, a rotating device and a support frame. The rotating device is placed on the top of the cable drum, and the rotating device includes a chassis, a vertical rod fixed on the chassis, a rotating rod fixed at the top of the vertical rod and capable of rotating in the horizontal direction, a through hole for the cable to pass through is provided 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 drum to avoid friction with the side wall of the upper surface of the cable drum after the cable is led out from the cable drum. The support frame includes a bottom plate fixed on the ground next to the cable drum, a vertical support rod fixed on the bottom plate, and a transverse support rod fixed at the top of the vertical support rod, and a through hole for the cable to pass through is provided at the end of the transverse support rod. After the cable is led out from the cable drum, it passes through the through hole at the end of the rotating rod and the through hole at the end of the transverse support rod in turn, and then the cable is pulled to a distant place to achieve the process of cable deployment.

[0004] For cable drums of different diameters, rotating rods of different lengths are required to avoid friction between the cable and the upper surface side wall of the cable drum, so the corresponding rotating device needs to be replaced at any time according to the size of the cable drum, which reduces the versatility and flexibility of the rotating device. At the same time, when the cable is pulled to a distance, due to the friction between the cable and the rotating rod and the through hole at the end of the transverse support rod, the rotating rod may be pulled toward the support rod, and the rotating device may be further overturned; at this time, the construction personnel need to manually reposition the rotating device to the middle of the cable drum, which not only increases the labor intensity and reduces the work efficiency of cable deployment, but also affects the stability and smoothness of the cable deployment process. Summary of the invention

[0005] In order to solve the above deficiencies in the prior art, the present invention aims to provide a photovoltaic cable deployment device that can deploy cables wound on reels of different sizes and prevent the rotating device from tipping over during the deployment process, thereby achieving stability and smoothness of the cable deployment process.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the present invention is as follows: a photovoltaic cable deployment device, including a chassis, a wire reel, and a mounting rod, a positioning groove is vertically opened 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 wire reel is placed on the inner side of the upper surface of the limiting ring, and a wire reel hole is axially opened in the middle of the wire reel and vertically penetrates the wire reel; the length of the mounting rod is greater than the height of the wire reel hole, the lower end of the mounting rod is detachably inserted vertically 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, and a threading hole is opened at the end of the rotating rod away from the mounting rod; an expansion and fixing mechanism for limiting the mounting rod and making the mounting rod located in the middle position of the wire reel hole is detachably fixed on the mounting rod; the positioning groove, the limiting ring, the wire reel hole and the mounting rod are all coaxially arranged.

[0007] As a limitation of the present invention: a bearing is fixedly provided on the upper end of the mounting rod, and the rotating rod is rotatably connected to the upper end of the mounting rod via the bearing.

[0008] As a limitation of the present invention: 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, the tension spring is fixedly provided on the upper surface of the fixing component, the slip ring mounted on the mounting rod is fixedly provided on the upper end of the tension spring, a connecting rod with a middle part capable of expanding outward is evenly and rotatably connected between the fixing component and the slip ring, and the upper and lower ends of the connecting rod are rotatably connected to the slip ring and the fixing component respectively.

[0009] As a limitation of the present invention, the fixing member is an annular protrusion having an outer diameter between the diameter of the mounting rod and the diameter of the cable drum hole.

[0010] As a limitation of the present invention, the connecting rod comprises two rod-shaped components whose ends are hinged to each other, and one end of the two rod-shaped components away from the hinged portion is rotatably connected to the annular protrusion and the side wall of the sliding ring respectively.

[0011] As a limitation of the present invention: the photovoltaic cable deployment device also includes an upper holding part and a lower holding part that are convenient for holding with both hands, the upper holding part is fixedly arranged on the upper end of the mounting rod, the bearing is fixedly arranged on the upper end of the upper holding part, the lower holding part is fixedly arranged on the upper end of the slip ring, and the lower holding part is sleeved on the mounting rod.

[0012] As a limitation of the present invention: the upper holding portion includes a columnar structure with the same diameter as the mounting rod, and an annular protrusion with a diameter larger than the mounting rod is fixedly provided at the lower end of the columnar structure; the outer diameter of the lower holding portion is larger than the diameter of the mounting rod, and an annular protrusion with a diameter larger than the mounting rod is fixedly provided at the upper end of the lower holding portion.

[0013] Due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art: by horizontally and rotatably connecting a rotating rod with a length greater than the radius of the chassis to the upper end of the mounting rod, when the diameter of the cable drum changes, it is only necessary to ensure that the cable drum is in the middle of the limit ring, so that the rotating axis of the rotating rod at the top of the mounting rod inserted in the positioning groove can always coincide with the axis of the cable drum. Therefore, the photovoltaic cable deployment device can adapt to cable drums of various diameters, and there is no need to prepare rotating rods or other accessories of specific lengths for cable drums of different diameters, thereby enhancing the versatility and flexibility of use of the photovoltaic cable deployment device.

[0014] Since the connecting rod with the middle part that can expand outward is evenly fixedly connected between the annular protrusion and the slip ring, it can ensure that the installation rod is located in the middle position of the cable drum hole, realize the position limitation of the installation rod, and also prevent the lower end of the installation rod from leaving the positioning groove and moving upward during the cable deployment process. Compared with the method of placing the rotating device on the cable drum in the prior art, the photovoltaic cable deployment device inserts a part of the installation rod into the positioning groove after passing through the cable drum, and further limits the position by using the hinge part on the connecting rod, thereby preventing the installation rod from tipping over during the deployment process, and achieving stability and smoothness of the cable deployment process.

[0015] In addition, the upper and lower grips are arranged on the mounting rod, which is convenient for the operator to operate and reduces the labor intensity of the operator. The mounting rod can be easily removed from the chassis through the positioning groove, which is convenient for the inspection and replacement of various components installed on the mounting rod, and is conducive to maintenance and care after long-term use.

[0016] In summary, the photovoltaic cable deployment device with the above structure can deploy cables wound on reels of different sizes and avoid the rotating device from tipping over during the deployment process, thereby ensuring the stability and smoothness of the cable deployment process. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 1 It is a structural schematic diagram of an embodiment of the present invention; Figure 2 It is an exploded schematic diagram of an embodiment of the present invention; Figure 3 It is a left side view of an embodiment of the present invention; Figure 4 For the embodiment of the present invention Figure 3 Sectional view of the AA surface.

[0019] In the figure: 1-chassis, 2-reel, 3-mounting rod, 4-positioning groove, 5-limiting ring, 6-reel hole, 7-rotating rod, 8-threading hole, 9-bearing, 10-annular protrusion, 11-tension spring, 12-slip ring, 13-connecting rod, 14-upper holding part, 15-lower holding part, 16-hinge part. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the photovoltaic cable deployment device described herein is a preferred embodiment, which is only used to illustrate and explain the present invention and does not constitute a limitation to the present invention.

[0021] The directional terms or positional relationships such as "up", "down", "left" and "right" described in the present invention are based on the directional relationships in the drawings of the present invention specification and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the content protected by the present invention.

[0022] A photovoltaic cable deployment device, such as Figures 1 to 4 As shown, it includes a chassis 1, a wire drum 2, and a mounting rod 3. A cylindrical positioning groove 4 is vertically opened in the middle of the upper surface of the chassis 1 for the lower end of the mounting rod 3 to be inserted. The chassis 1 is in the shape of a square plate, and a limiting ring 5 with a diameter the same as the side length of the chassis 1 is fixedly installed on the upper surface of the chassis 1. The limiting ring 5 is a circular ring structure, which is coaxially arranged with the positioning groove 4. The lower surface of the limiting ring 5 is a plane, and the inner and outer sides of the upper surface of the limiting ring 5 are both downwardly inclined inclined surfaces. The wire drum 2 is placed on the inner side of the upper surface of the limiting ring 5, and the diameter of the bottom end of the wire drum 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 wire drum 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 wire drum 2 will not be able to be completely placed inside or on the inclined surface of the limiting ring 5, and then the limiting ring 5 cannot be used to limit the wire drum 2. By placing the wire reel 2 on the inclined surface of the limiting ring 5, the construction workers only need to apply a small force horizontally to the wire reel 2. Under the action of gravity, the wire reel 2 will slide into the inside of the limiting ring 5. Therefore, the construction workers can easily push the wire reel 2 horizontally into the middle of the limiting ring 5, thereby improving the installation efficiency of the device.

[0023] A wire drum hole 6 is provided in the middle axial direction of the wire drum 2 and vertically penetrates the wire drum 2. The diameter of the wire drum hole 6 is larger than the diameter of the mounting rod 3, and the height of the wire drum hole 6 is smaller than the length of the mounting rod 3. The mounting rod 3 can penetrate the wire drum 2 from top to bottom, and the lower end of the mounting rod 3 can be detachably inserted vertically into the positioning groove 4. A rotating rod 7 whose length is larger than the radius of the chassis 1 is horizontally and 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 drum 2 after being led out. A threading hole 8 for the photovoltaic cable to pass through is provided at the end of the rotating rod 7 away from the mounting rod 3. By passing the cable wound on the wire drum 2 through the threading hole 8, the led-out cable can move together with the rotating rod 7.

[0024] Since the limiting ring 5 is coaxially arranged with the positioning groove 4, the axial direction of the wire drum 2 completely located in the limiting ring 5 is also the same as that of the positioning groove 4. When the diameter of the wire drum 2 changes, it is only necessary to ensure that the wire drum 2 is in the middle of the limiting ring 5, so that the rotation axis of the rotating rod 7 at the top of the installation rod 3 inserted in the positioning groove 4 can always coincide with the axis of the wire drum 2. Therefore, the photovoltaic cable deployment device with the above structure can adapt to wire drums of various diameters, and there is no need to prepare a specific length of rotating rods or other accessories for wire drums of different diameters, thereby enhancing the versatility and flexibility of use of the photovoltaic cable deployment device. At the same time, the positioning groove 4, the limiting ring 5, the wire drum 2, and the installation rod 3 are all coaxially arranged, which can ensure that their axes can be aligned with high precision, ensure the concentricity of each component, reduce the problem of rotation instability caused by the rotation axis of the rotating rod 7 deviating from the axis of the wire drum 2, and further improve the stability of the cable deployment process.

[0025] Furthermore, a bearing 9 is fixedly provided 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 through the bearing 9. By providing the bearing 9 between the two components, the friction force when the rotating rod 7 rotates relative to the mounting rod 3 can be reduced, and the stability of the rotation process can be improved. At the same time, an expansion fixing mechanism for limiting the mounting rod 3 and positioning the mounting rod 3 in the middle of the wire coil hole 6 can be detachably fixedly provided on the mounting rod 3.

[0026] Specifically, the expansion fixing mechanism includes a fixing component 10 for fixing a tension spring 11, a tension spring 11, a slip ring 12, and a connecting rod 13. The fixing component 10 is fixedly installed at 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 diameters of the mounting rod 3 and the wire coil hole 6. The upper surface of the fixing component 10 is fixedly provided with a tension spring 11 with an elastic expansion function, and the upper end of the tension spring 11 is fixedly provided with a slip ring 12 sleeved on the mounting rod 3. The outer diameter of the slip ring 12 is between the diameters of the mounting rod 3 and the wire coil hole 6, and the slip ring 12 can move in the vertical direction along the side wall of the mounting rod 3.

[0027] A connecting rod 13 whose middle part can expand outward is evenly and rotatably connected between the fixed component 10 and the slip ring 12, and the upper end and the lower end of the connecting rod 13 are rotatably connected to the side wall of the slip ring 12 and the fixed component 10 respectively. Specifically, there are three connecting rods 13, and their two ends are evenly distributed and fixed on the side wall of the slip ring 12 and the fixed component 10. Each connecting rod 13 includes two rod-shaped components with two ends hinged to each other, and one end of the two rod-shaped components away from the hinge 16 is rotatably connected to the side wall of the fixed component 10 and the slip ring 12 respectively.

[0028] When the tension spring 11 is in a free state, the connecting rod 13 is in an outward expansion state, and at this time, the diameter of the circle determined by the three hinged parts 16 in the horizontal direction is larger than the diameter of the wire coil hole 6. When the installation rod 3 needs to be inserted into the positioning groove 4, the slip ring 12 is pulled upward, and the connecting rod 13 changes from expanding outward to contracting inward until the diameter of the circle determined by the hinged part 16 is smaller than the diameter of the wire coil hole 6, and the installation rod 3 can be inserted into the positioning groove 4 after passing through the wire coil hole 6. Then, the slip ring 12 is released, and it will move downward, and the connecting rod 13 gradually expands outward. When the hinged part 16 simultaneously abuts against and squeezes the side wall of the wire coil hole 6, the installation rod 3 is limited and the installation rod 3 is located in the middle of the wire coil hole.

[0029] The hinged portion 16 of the connecting rod 13 can expand outward until it contacts and squeezes the side wall of the cable drum hole 6 at the same time, further fixing the relative position between the mounting rod 3 and the cable drum hole 6, and ensuring that the mounting rod 3 is located in the middle of the cable drum hole 6, thereby limiting the mounting rod 3 and preventing the lower end of the mounting rod 3 from escaping from the positioning groove 4 and moving upward during the cable deployment process. Compared with the prior art method of placing a rotating device on the cable drum, the above-mentioned photovoltaic cable deployment device inserts a part of the mounting rod 3 into the positioning groove 4 after passing through the cable drum 2, and further limits the position using the hinged portion 16 on the connecting rod 13, thereby preventing the mounting rod 3 from tipping over during the deployment process, thereby achieving stability and smoothness in the cable deployment process.

[0030] Furthermore, the photovoltaic cable deployment device also includes an upper gripping portion 14 and a lower gripping portion 15 that are convenient for holding with both hands. The upper gripping portion 14 is fixedly arranged at the upper end of the mounting rod 3, and the bearing 9 is fixedly arranged at the upper end of the upper gripping portion 14. The upper gripping portion 14 specifically includes a columnar structure with the same diameter as the mounting rod 3, and an annular protrusion with a diameter larger than the mounting rod 3 is fixedly arranged at the lower end of the columnar structure. In the process of inserting the mounting rod 3 downward into the positioning groove 4, the annular protrusion can limit one of the hands. The lower gripping portion 15 is fixedly arranged at the upper end of the slip ring 12 and forms an integral structure with the slip ring 12. The lower gripping portion 15 is sleeved on the mounting rod 3, and the outer diameter of the lower gripping portion 15 is larger than the diameter of the mounting rod 3. An annular protrusion with a diameter larger than the mounting rod 3 is fixedly arranged at the upper end of the lower gripping portion 15, so that the position of the other hand can be limited between the annular protrusion of the lower gripping portion 15 and the slip ring 12.

[0031] By pulling up or pressing down the lower gripping portion 15, the slip ring 12 can move in the same direction as the lower gripping portion 15, thereby realizing the extension and retraction of the connecting rod 13 connected to the slip ring 12. The construction personnel only need to hold the two gripping portions with both hands to complete the fixing or removal of the mounting rod 3 from the positioning groove 4, which is convenient for the construction personnel's operation and reduces the labor intensity of the construction personnel. Through the positioning groove 4, the mounting rod 3 can be easily disassembled from the chassis 1, which is convenient for the inspection and replacement of various components installed on the mounting rod 3, and is conducive to maintenance and care after long-term use.

[0032] When using this embodiment, first place the wire drum 2 on the inner side of the upper surface of the limiting ring 5 so that the wire drum 2 is coaxial with the positioning groove 4. The construction personnel grasp the upper holding part 14 and the lower holding part 15 with both hands respectively, pull up the slip ring 12, insert the lower end of the installation rod 3 into the positioning groove 4, and avoid the hinged part 16 of the connecting rod 13 from contacting the side wall of the wire drum 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 upper end of the tension spring 11 and the connecting rod 13 to move downward, and gradually expand the hinged part 16 of the connecting rod 13 outward, so that the hinged part 16 is squeezed with the side wall of the wire drum hole 6 to fix the installation rod 3; finally, pass the cable wound on the wire drum 2 through the threading hole 8, and by pulling the cable to a distance, the rotating rod 7 can rotate with the extension of the cable, thereby realizing smooth deployment of the cable.

Claims

1. A photovoltaic cable deployment device, characterized in that: It includes a chassis, a wire drum, and a mounting rod. A positioning groove is vertically opened 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 side and the outer side of the upper surface of the limiting ring are both downwardly inclined inclined surfaces, the wire drum is placed on the inner side of the upper surface of the limiting ring, and a wire drum hole is opened in the middle of the wire drum axially and vertically penetrates the wire drum; The length of the mounting rod is greater than the height of the wire reel hole, the lower end of the mounting rod is detachably inserted vertically 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, and a threading hole is provided at one end of the rotating rod away from the mounting rod; An expansion and fixing mechanism for limiting the position of the mounting rod so that the mounting rod is located in the middle of the cable tray hole is detachably fixed on the mounting rod; The positioning groove, the limiting ring, the wire coil hole and the mounting rod are all coaxially arranged.

2. The photovoltaic cable deployment device according to claim 1, characterized in that: A bearing is fixedly arranged on the upper end of the installation rod, and the rotating rod is rotatably connected to the upper end of the installation rod through the bearing.

3. The photovoltaic cable deployment 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 on the lower part of the mounting rod, a tension spring is fixedly arranged on the upper surface of the fixing component, a slip ring sleeved on the mounting rod is fixedly arranged on the upper end of the tension spring, and a connecting rod with a middle part capable of expanding outward is evenly and rotatably connected between the fixing component and the slip ring, and 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 deployment device according to claim 3, characterized in that: The fixing part is an annular protrusion with an outer diameter between the diameters of the mounting rod and the cable drum hole.

5. The photovoltaic cable deployment device according to claim 4, characterized in that: The connecting rod comprises two rod-shaped parts whose ends are hinged to each other, and one end of the two rod-shaped parts away from the hinged part is rotatably connected to the annular protrusion and the side wall of the sliding ring respectively.

6. The photovoltaic cable deployment device according to claim 5, characterized in that: It also includes an upper holding part and a lower holding part that are convenient for holding with both hands. The upper holding part is fixedly arranged on the upper end of the mounting rod, the bearing is fixedly arranged on the upper end of the upper holding part, the lower holding part is fixedly arranged on the upper end of the slip ring, and the lower holding part is sleeved on the mounting rod.

7. The photovoltaic cable deployment device according to claim 6, characterized in that: The upper holding part includes a columnar structure with the same diameter as the mounting rod, and a ring-shaped protrusion with a diameter larger than the mounting rod is fixedly provided at the lower end of the columnar structure; the outer diameter of the lower holding part is larger than the diameter of the mounting rod, and a ring-shaped protrusion with a diameter larger than the mounting rod is fixedly provided at the upper end of the lower holding part.

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