Tensioning device and flexible photovoltaic tracking system

Abstract

The utility model discloses a tensioning device and a flexible photovoltaic tracking system, and belongs to the field of photovoltaic power generation. The first pull rod is fixedly connected with one end of the mounting box; the second pull rod is movably connected with the other end of the mounting box; the second pull rod is sleeved with the elastic piece, one end of the elastic piece abuts against one end of the second pull rod, and the other end of the elastic piece abuts against the inner wall of the other end of the mounting box; and one end of the length adjusting assembly is connected with the other end of the second pull rod. The steel wire rope tensioning device has the technical effects that the tensioning force on the steel wire rope can be conveniently and automatically adjusted, and the steel wire rope can be prevented from being impacted.

Description

Technical Field

[0001] The utility model relates to photovoltaic power generation, and particularly to a tensioning device and a flexible photovoltaic tracking system. Background Art

[0002] A flexible photovoltaic tracking system is a flexible photovoltaic support system that can automatically track the sun and improve the overall power generation, and is widely used in the field of photovoltaic power generation.

[0003] Chinese Utility Model Patent, Publication No.: CN220629253U, Publication Date: Mar. 19, 2024, discloses a concentrating tracking support power generation unit, including a truss with an inverted A-shaped cross-section, a connecting mechanism arranged between adjacent trusses, and a dragging mechanism connected to the side of the truss. A groove is provided at the top of the truss, a photovoltaic module plate is installed on the bottom surface of the groove, and mirror reflectors are installed on both side surfaces of the groove. The truss is dragged by the dragging mechanism to rotate following the movement of the sun, and the photovoltaic module plate receives direct sunlight and reflected light from the mirror reflectors. This utility model gives full play to the advantageous combination of the tracking support and the low-concentration structure, and by significantly improving the power generation efficiency of the photovoltaic module plate, achieves the economic goals of reducing the cost per kilowatt-hour of the power station and increasing the return on investment of the project. Its disadvantage is that a counterweight is used to tighten the steel wire rope. Since the weight of the counterweight is a fixed value, if the weight is too small, it is easy to cause the steel wire rope to not be tightened; if the weight is too large, it is easy to cause the tension of the steel wire rope to be too large. At the same time, under the action of wind, the vibration of the steel wire rope and the vibration of the counterweight have a superimposed phenomenon, which impacts the steel wire rope and is not conducive to the long-term stable operation of this concentrating tracking support power generation unit. Summary of the Utility Model

[0004] Purpose of the Utility Model: The purpose of the present utility model is to provide a tensioning device that is not only convenient for automatically adjusting the tension of the steel wire rope but also can prevent impact on the steel wire rope; another purpose of the present utility model is to provide a flexible photovoltaic tracking system.

[0005] Technical Solution: A tensioning device includes:

[0006] An installation box;

[0007] A first pull rod fixedly connected to one end of the installation box;

[0008] A second pull rod movably connected to the other end of the installation box;

[0009] An elastic member sleeved outside the second pull rod, one end of the elastic member abuts against one end of the second pull rod, and the other end of the elastic member abuts against the inner wall of the other end of the installation box;

[0010] A length adjustment component, one end of the length adjustment component is connected to the other end of the second pull rod.

[0011] Optionally, it further includes a guiding component connected to one end of the second pull rod. The guiding component is movably matched with the inner wall of the installation box, and one end of the elastic member abuts against the guiding component.

[0012] Optionally, the guiding component includes:

[0013] A bottom plate connected to one end of the second pull rod, and one end of the elastic member abuts against the bottom plate;

[0014] Four guiding plates all connected to the bottom plate, and the four guiding plates are all movably matched with the inner wall of the installation box.

[0015] Optionally, the installation box includes a box body and a cover body connected to each other. One end of the first pull rod is fixedly connected to one end of the box body, the second pull rod is movably connected to the other end of the box body, and the other end of the elastic member abuts against the inner wall of the other end of the box body.

[0016] Optionally, the installation box further includes two extension plates respectively connected to both sides of the box body, and the two extension plates are both connected to the cover body.

[0017] Optionally, the first pull rod includes:

[0018] A first pull rod body, one end of the first pull rod body is fixedly connected to one end of the installation box;

[0019] A first pull ring connected to the other end of the first pull rod body.

[0020] Optionally, the second pull rod includes:

[0021] A second pull rod body movably connected to the other end of the installation box, the elastic member is sleeved outside the second pull rod body, and one end of the second pull rod body abuts against one end of the elastic member;

[0022] A second pull ring connected to the other end of the second pull rod body, and the second pull ring is connected to one end of the length adjustment component.

[0023] A flexible photovoltaic tracking system includes a tensioning device.

[0024] Beneficial effects: Before use, by adjusting the length of the length adjustment component itself, the compression state of the elastic member is changed. During use, the elastic member is used to automatically adjust the tension force on the wire rope group, so that the wire rope group is always in a tensioned state. The elastic member is also used to absorb the impact of external vibration on the wire rope group, so as to prevent impact on the wire rope group. Description of the Drawings

[0025] Figure 1 Structural schematic diagram of a flexible photovoltaic tracking system according to Embodiment 1 of the present utility model;

[0026] Figure 2 is Figure 1 partial view of A in

[0027] Figure 3 Partial view of a tensioning device according to Embodiment 1 of the present utility model;

[0028] In the figure: 1. First pull rod; 11. First pull rod body; 12. First pull ring; 2. Second pull rod; 21. Second pull rod body; 22. Second pull ring; 3. Installation box; 31. Box body; 311. Through hole; 32. Cover body; 33. Extension plate; 4. Elastic member; 5. Length adjustment component; 6. Guide component; 61. Guide plate; 62. Bottom plate; 7. Steel wire rope group; 71. First steel wire rope; 72. Second steel wire rope. Detailed implementation manners

[0029] To make the technical solution of the present utility model clearer, the following further describes the present utility model in detail with reference to the accompanying drawings and specific embodiments.

[0030] Embodiment 1

[0031] As Figures 2-3 , this embodiment provides a tensioning device, including: an installation box 3; a first pull rod 1 fixedly connected to one end of the installation box 3; a second pull rod 2 movably connected to the other end of the installation box 3; an elastic member 4 sleeved outside the second pull rod 2, one end of the elastic member 4 abuts against one end of the second pull rod 2, and the other end of the elastic member 4 abuts against the inner wall of the other end of the installation box 3; a length adjustment component 5, one end of the length adjustment component 5 is connected to the other end of the second pull rod 2.

[0032] Specifically, the installation box 3 is used to protect the first pull rod 1, the second pull rod 2 and the elastic member 4, so as to increase the service life of the elastic member 4; the first pull rod 1 is supported by one end of the installation box 3, and the first pull rod 1 is used to connect the first steel wire rope 71; the second pull rod 2 is supported by the other end of the installation box 3, and the second pull rod 2 is used to connect the length adjustment component 5; the elastic member 4 is used to enable the second pull rod 2 and the other end of the installation box 3 to achieve an active tension connection, and the material of the elastic member 4 can be rubber, spring steel, etc.; the other end of the length adjustment component 5 is used to connect the second steel wire rope 72, and the second steel wire rope 72 is away from the length One end of the length adjustment component 5 is connected to the end of the first wire rope 71 away from the first pull rod 1, so that the second wire rope 72 and the first wire rope 71 are enclosed and connected to form an integral wire rope group 7. Before use, the compression state of the elastic member 4 is changed by adjusting the length of the length adjustment component 5 itself. When in use, the elastic member 4 is used to automatically adjust the tensioning force on the wire rope group 7, so that the wire rope group 7 is always in a tensioned state. The elastic member 4 is also used to absorb the impact of external vibration on the wire rope group 7, so as to prevent impact on the wire rope group 7. Among them, the length adjustment component 5 can be a basket bolt, a basket screw, etc.

[0033] Further, such as Figure 3 , further comprising a guide assembly 6 connected to one end of the second pull rod 2, the guide assembly 6 and the inner wall of the installation box 3 are movably matched, and one end of the elastic member 4 is in conflict with the guide assembly 6. Specifically, since the guide assembly 6 and the inner wall of the installation box 3 are movably matched, it is convenient for the installation box 3 to produce a radial limiting effect on the guide assembly 6, thereby producing a radial limiting effect on the elastic member 4, preventing the elastic member 4 from jumping along the radial direction when expanding and contracting.

[0034] Further, such as Figure 3 The guide assembly 6 includes: a bottom plate 62 connected to one end of the second pull rod 2, one end of the elastic member 4 abuts against the bottom plate 62; four guide plates 61 connected to the bottom plate 62, and the four guide plates 61 are all movably matched with the inner wall of the installation box 3. Specifically, since the four guide plates 61 are all movably matched with the inner wall of the installation box 3, it is convenient to increase the contact area between the guide assembly 6 and the inner wall of the installation box 3, so that the guiding stability of the guide assembly 6 and the inner wall of the installation box 3 is good, wherein the four guide plates 61 are preferably evenly distributed along the circumference of the elastic member 4; the bottom plate 62 is used to connect the four guide plates 61 to one end of the second pull rod 2.

[0035] Further, such as Figure 2, the mounting box 3 includes a box body 31 and a cover body 32 which are connected to each other. One end of the first pull rod 1 is fixedly connected to the box body 31, the second pull rod 2 is movably connected to the other end of the box body 31, and the other end of the elastic member 4 abuts against the inner wall of the other end of the box body 31. Specifically, since the box body 31 and the cover body 32 are connected, it is convenient to install the first pull rod 1, the second pull rod 2, the elastic member 4, etc. in the box body 31. The box body 31 and the cover body 32 form a closed mounting box 3, which is convenient to prevent external dust, rain, etc. from entering the mounting box 3, thereby preventing external dust, rain, etc. from damaging the elastic member 4 in the mounting box 3, and further improving the service life of the elastic member 4.

[0036] Further, as Figure 3 , the mounting box 3 further includes two extension plates 33 respectively connected to both sides of the box body 31, and both extension plates 33 are connected to the cover body 32. Specifically, the two extension plates 33 are convenient for increasing the connection area between the box body 31 and the cover body 32, so that the connection between the box body 31 and the cover body 32 is firm. When vibration occurs, the box body 31 and the cover body 32 are not likely to be misaligned with each other, and are even less likely to be separated from each other. Among them, the two extension plates 33 are preferably integrally formed and bent and connected to both sides of the box body 31, which is convenient for increasing the integrity of the box body 31 and the two extension plates 33.

[0037] Further, as Figures 2-3 , the first pull rod 1 includes: a first pull rod body 11, one end of the first pull rod body 11 is fixedly connected to one end of the mounting box 3; a first pull ring 12 connected to the other end of the first pull rod body 11. Specifically, one end of the first pull rod body 11 and one end of the mounting box 3 are specifically fixedly connected by fasteners, which is convenient for ensuring good fixing performance and good detachable performance; the first pull ring 12 is used to connect the first steel wire rope 71. The specific connection method is to first pass the first steel wire rope 71 through the first pull ring 12, then overlap the two sections of the first steel wire rope 71, and finally fix the overlapped ends of the first steel wire rope 71; the connection method between the first pull rod body 11 and the first pull ring 12 can be welding or integrally formed casting connection, and preferably integrally formed casting connection, which is convenient for increasing the integrity between the first pull rod body 11 and the first pull ring 12.

[0038] Further, as Figures 2-3, the second pull rod 2 includes: a second pull rod body 21 movably connected to the other end of the mounting box 3, an elastic member 4 sleeved outside the second pull rod body 21, and one end of the second pull rod body 21 abuts against one end of the elastic member 4; a second pull ring 22 connected to the other end of the second pull rod body 21, and the second pull ring 22 is connected to one end of the length adjustment assembly 5. Specifically, a through hole 311 can be provided at the other end of the box body 31 of the mounting box 3, and the second pull rod body 21 is movably passed through the through hole 311, so that the second pull rod body 21 is movably connected to the other end of the mounting box 3; the second pull ring 22 is used to connect one end of the length adjustment assembly 5, and the other end of the length adjustment assembly 5 is used to connect the second steel wire rope 72. The specific connection method is to first pass the second steel wire rope 72 through the other end of the length adjustment assembly 5, then overlap the two sections of the second steel wire rope 72, and finally fix the overlapped ends of the second steel wire rope 72; the connection method between the second pull rod body 21 and the second pull ring 22 can be welding or integrally formed casting connection, preferably integrally formed casting connection, which is convenient to increase the integrity between the second pull rod body 21 and the second pull ring 22.

[0039] This embodiment also provides a flexible photovoltaic tracking system, including a tensioning device of this embodiment.

[0040] The above embodiments only represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. A tensioning device, characterized in that: include: Installation box; A first pull rod fixedly connected to one end of the installation box; A second pull rod movably connected to the other end of the installation box; An elastic member sleeved on the outside of the second pull rod, one end of the elastic member abuts against one end of the second pull rod, and the other end of the elastic member abuts against the inner wall of the other end of the installation box; A length adjustment component, one end of which is connected to the other end of the second pull rod.

2. A tensioning device according to claim 1, characterized in that: It also includes a guide assembly connected to one end of the second pull rod, the guide assembly and the inner wall of the installation box are movably matched, and one end of the elastic member is in conflict with the guide assembly.

3. A tensioning device according to claim 2, characterized in that: The guide assembly comprises: A bottom plate connected to one end of the second pull rod, one end of the elastic member abutting against the bottom plate; Four guide plates are connected to the bottom plate, and the four guide plates are movably matched with the inner wall of the installation box.

4. A tensioning device according to any one of claims 1 to 3, characterized in that: The installation box comprises a box body and a cover body connected to each other, the first pull rod is fixedly connected to one end of the box body, the second pull rod is movably connected to the other end of the box body, and the other end of the elastic member abuts against the inner wall of the other end of the box body.

5. A tensioning device according to claim 4, characterized in that: The installation box further comprises two extension plates respectively connected to two sides of the box body, and the two extension plates are both connected to the cover body.

6. A tensioning device according to any one of claims 1 to 3, characterized in that: The first pull rod comprises: A pull rod body 1, one end of which is fixedly connected to one end of the installation box; A first pull ring is connected to the other end of the pull rod body.

7. A tensioning device according to any one of claims 1 to 3, characterized in that: The second pull rod comprises: A second pull rod body movably connected to the other end of the installation box, the elastic member is sleeved outside the second pull rod body, and one end of the second pull rod body abuts against one end of the elastic member; A second pull ring connected to the other end of the pull rod body 2, wherein the second pull ring is connected to one end of the length adjustment component.

8. A flexible photovoltaic tracking system, characterized in that: It comprises a tensioning device as described in any one of claims 1-7.

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