Bolt tightening device for photovoltaic power station

By designing the bolt elastic device for photovoltaic power stations, and using gear disks and transmission mechanisms to drive multiple fixed components, the problem of low installation and disassembly efficiency of photovoltaic brackets is solved, and multiple bolts are tightened and disassembled at the same time, improving work efficiency.

CN223277913UActive Publication Date: 2025-08-29THREE GORGES GRP ZHEJIANG ENERGY INVESTMENT CO LTD
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Patent Information

Application Number
CN202422044975.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-21
Publication Date
2025-08-29
Estimated Expiration
2034-08-21

AI Technical Summary

Technical Problem

In the prior art, the installation and disassembly efficiency of photovoltaic brackets is not high, especially in large-scale photovoltaic power station projects, the fixing and disassembly efficiency of bolts is inefficient.

Method used

A bolt elastic device for photovoltaic power stations is designed, including a positioning plate, a fixing assembly, a gear disk and a transmission mechanism. Through the meshing of the gear disk and the fixing assembly, the transmission mechanism provides power to the gear disk, and drives multiple fixing components to rotate simultaneously, realizing the tightening and disassembly of multiple bolts.

Benefits of technology

It improves the installation and disassembly efficiency of photovoltaic brackets, has a simple structure and flexible application, and can handle multiple bolts at the same time, improving work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a bolt tightening device for a photovoltaic power station, which relates to the photovoltaic field and comprises a positioning plate, a fixing assembly, a gear disc and a transmission mechanism, a gear disc is rotationally connected to one face of the positioning plate, four through grooves are formed in the positioning plate, fixing assemblies are rotationally connected to the through grooves and used for clamping bolts, outer rings of the fixing assemblies are of gear ring structures, gear rings of the four fixing assemblies are meshed with the gear disc at the same time, and the gear disc is coaxially connected with a transmission mechanism. The transmission mechanism is arranged on the other face of the positioning plate and used for providing power for the gear disc. The photovoltaic support can be used for solving the problem that in the prior art, the efficiency of mounting and dismounting a photovoltaic support is not high.
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Description

Technical Field

[0001] The present application relates to the photovoltaic field, and in particular to a bolt tightening device for a photovoltaic power station. Background Art

[0002] As an emerging form of photovoltaic power generation, floating photovoltaic power plants not only help resolve the conflict between energy demand and land use, but also play a key role in promoting clean energy transition, promoting economic growth, and protecting the environment. With technological advancements and cost reductions, the potential application areas of floating photovoltaics will further expand.

[0003] Photovoltaic brackets require installation and removal of multiple bolts when fixing and disassembling. Especially for large-scale photovoltaic power station projects, the number of photovoltaic brackets involved is huge. How to improve the efficiency of photovoltaic bracket installation and disassembly is an important issue facing this field.

[0004] In view of the above-mentioned defects, the present invention proposes a bolt tightening device for a photovoltaic power station, which is used to solve the problem of low efficiency in installation and disassembly of photovoltaic brackets in the prior art. Utility Model Content

[0005] The present application provides a bolt tightening device for a photovoltaic power station, which is used to solve the problem of low efficiency in installation and disassembly of photovoltaic brackets in the prior art.

[0006] The present application provides a bolt tightening device for a photovoltaic power station, comprising a positioning plate, a fixing assembly, a gear plate, and a transmission mechanism;

[0007] A gear plate is rotatably connected to one side of the positioning plate, and four through slots are opened on the positioning plate. A fixing component is rotatably connected to the through slot, and the fixing component is used to support the bolts. The outer ring of the fixing component is a gear ring structure, and the gear rings of the four fixing components are engaged with the gear plate at the same time. The gear plate is coaxially connected to a transmission mechanism, which is arranged on the other side of the positioning plate. The transmission mechanism is used to provide power to the gear plate.

[0008] Furthermore, the fixing assembly includes a rotating drum, a support rod and a holding device; wherein

[0009] One end of the rotating drum is rotatably connected to the through slot, and the rotating drum is coaxially connected to the through slot. The outer wall of the rotating drum is a gear ring structure, and a support rod is abutted or fixed on the inner wall of the rotating drum. Two supporting devices are slidably provided on the support rod, and the two supporting devices are used to support the bolts.

[0010] Furthermore, the holding device includes a clamping plate, a positioning cylinder and a positioning bolt, wherein

[0011] The positioning tube and the clamping plate are both sleeved on the support rod. The positioning tube and the holding plate are fixed to each other. A positioning bolt is provided on the positioning tube to limit the position of the positioning tube on the support rod.

[0012] Furthermore, an annular inner groove is radially opened on the inner wall of the rotating drum, and the support rod is a telescopic rod, which abuts against the annular inner groove.

[0013] Furthermore, an anti-skid pad is fixed on one surface of the positioning plate, and the height of the anti-skid pad is not less than the height of the rotating drum.

[0014] Furthermore, the transmission mechanism includes a motor, and the motor is coaxially connected to the gear plate.

[0015] Furthermore, the motor is also connected to a rechargeable battery.

[0016] Furthermore, the transmission mechanism includes a transmission handle, one end of which is fixed to the rotating shaft of the gear plate.

[0017] Furthermore, the transmission handle includes a fixed rod and a rod insertion handle, one end of the fixed rod is fixedly connected to the rotating shaft of the gear plate, and the other end of the fixed rod is detachably connected or slidably connected to one end of the rod in the rod insertion handle.

[0018] Furthermore, a sliding groove is opened on the fixed rod, and the fixed rod is hollow. One end of the insertion rod in the insertion rod handle is sleeved in the fixed rod. A screw rod is fixed on the insertion rod, the screw rod can slide in the sliding groove, and the screw rod can be fixed with the nut.

[0019] The present application provides a bolt tightening and loosening device for a photovoltaic power station, comprising a positioning plate, a fixing assembly, a gear plate, and a transmission mechanism; wherein a gear plate is rotatably connected to one side of the positioning plate, the positioning plate is provided with four through slots, a fixing assembly is rotatably connected to the through slots, the fixing assembly is used to position the bolts, the outer ring of the fixing assembly is a gear ring structure, the gear rings of the four fixing assemblies are simultaneously engaged with the gear plate, the gear plate is coaxially connected to a transmission mechanism, the transmission mechanism is arranged on the other side of the positioning plate, and the transmission mechanism is used to provide power to the gear plate. The following technical effects can be achieved:

[0020] The device provided in this application is used to support the bolts through the fixing components, and the transmission mechanism provides power to the gear plate, thereby driving multiple fixing components to rotate simultaneously, thereby realizing the tightening and disassembly of multiple bolts. It has a simple structure and flexible application, and can improve the efficiency of photovoltaic bracket installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1This is a schematic diagram of an application scenario of a bolt tightening device for a photovoltaic power station provided by an embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of a bolt tightening device for a photovoltaic power station provided by the embodiment of the utility model. Figure 1 ;

[0024] Figure 3 This is a schematic diagram of the structure of a bolt tightening device for a photovoltaic power station provided by the embodiment of the utility model. Figure 2 ;

[0025] Figure 4 This is a structural schematic diagram of one side of a positioning plate in a bolt tightening device for a photovoltaic power station provided by an embodiment of the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of a fixing component in a bolt tightening device for a photovoltaic power station provided by an embodiment of the utility model. Figure 1 ;

[0027] Figure 6 This is a schematic diagram of the structure of a fixing component in a bolt tightening device for a photovoltaic power station provided by an embodiment of the utility model. Figure 2 ;

[0028] Figure 7 The utility model is a schematic structural diagram of a transmission handle in a bolt tightening device for a photovoltaic power station provided by an embodiment of the present invention.

[0029] The above drawings illustrate specific embodiments of the present invention, which will be described in more detail below. These drawings and the accompanying description are not intended to limit the scope of the present invention in any way, but rather to illustrate the concepts of the present invention to those skilled in the art by reference to specific embodiments.

[0030] Description of reference numerals:

[0031] 110-photovoltaic bracket; 120-bolt hole; 130-cement column;

[0032] 200-positioning plate;

[0033] 300-fixed components;

[0034] 400-gear plate;

[0035] 210-anti-slip pad; 220-through slot;

[0036] 310 - rotating drum; 320 - supporting rod; 330 - holding device; 340 - second bearing; 350 - annular inner groove;

[0037] 331-clamping plate; 332-positioning cylinder; 333-positioning bolt;

[0038] 410 - rotating shaft; 420 - first bearing;

[0039] 510-motor; 520-transmission handle;

[0040] 521-fixing rod; 522-rod insertion handle; 523-screw rod; 524-nut; 525-slide groove. DETAILED DESCRIPTION

[0041] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0042] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0043] In the description of this application, it should be understood that the terms used include "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. to indicate orientation or positional relationships. They are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the equipment or method of this application. They are not used to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0044] In the specification and claims of this application and the accompanying drawings, the terms "first," "second," and "third" are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the application described herein can, for example, be implemented in an order other than that illustrated or described herein.

[0045] In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions; for example, a process, method, system, product or service tool that includes a series of steps or units is not necessarily limited to only those steps or units expressly listed, but may also include other steps or units not expressly listed or inherent to such process, method, product or service tool.

[0046] In many applications, using four bolts is a common practice. These four points of fixation provide greater stability, ensuring even load distribution and reducing localized stress concentrations. Furthermore, four bolts allow for more precise positioning: three bolts define a plane, while the fourth allows for further adjustment and fine-tuning.

[0047] In the photovoltaic field, the same is true for the fixation of photovoltaic brackets. Figure 1 This is a schematic diagram of an application scenario of a bolt tightening device for a photovoltaic power station provided by an embodiment of the utility model. Figure 1 , is a structural diagram of a commonly used photovoltaic bracket 110. The photovoltaic bracket 110 is generally fixed to a cement column 130 by multiple bolts. Each set of fixing bolts is arranged in a 2×2 position, and the position of each set of bolt holes 120 is fixed.

[0048] The utility model provides a bolt tightening device for a photovoltaic power station, which can improve the installation and disassembly efficiency of a photovoltaic bracket in the above-mentioned application scenario.

[0049] A bolt tightening device for a photovoltaic power station provided in an embodiment of the present application is described in detail below with reference to the accompanying drawings.

[0050] Figure 2 This is a schematic diagram of the structure of a bolt tightening device for a photovoltaic power station provided by the embodiment of the utility model. Figure 1 ; Figure 3 This is a schematic diagram of the structure of a bolt tightening device for a photovoltaic power station provided by the embodiment of the utility model. Figure 2 ; Figure 4 The present invention is a structural diagram of one side of a positioning plate in a bolt tightening device for a photovoltaic power station provided by an embodiment of the present invention.

[0051] like Figures 2 to 4As shown, the embodiment of the present application includes a positioning plate 200, a fixing assembly 300, a gear plate 400, and a transmission mechanism; the gear plate 400 is rotatably connected to one side of the positioning plate 200, four through slots 220 are opened on the positioning plate 200, and the fixing assembly 300 is rotatably connected to the through slot 220, the fixing assembly 300 is used to support the bolts, the outer ring of the fixing assembly 300 is a gear ring structure, the gear rings of the four fixing assemblies 300 are simultaneously engaged with the gear plate 400, the gear plate 400 is coaxially connected with the transmission mechanism, the transmission mechanism is arranged on the other side of the positioning plate 200, and the transmission mechanism is used to provide power to the gear plate 400.

[0052] Specifically, the four fixing components 300 and the gear plate 400 are all arranged on one side of the positioning plate 200, the centers of the four through grooves 220 are respectively located at the centers of the four bolt holes 120, and the gear plate 400 is located at the intersection of two diagonals at the centers of the four bolt holes 120. Such a position setting enables the gear rings of the four fixing components 300 to engage with the gear plate 400 at the same time.

[0053] Furthermore, the positioning plate 200 is connected to the gear plate 400 through a first bearing 420. A bearing hole is opened on the positioning plate 200, and the first bearing 420 is fixed in the bearing hole. The rotating shaft 410 of the gear plate 400 extends through the bearing hole to the other side of the positioning plate 200 and is connected to the transmission mechanism.

[0054] In some embodiments, the fixing assembly 300 is rotatably connected to the through slot 220 via a second bearing 340 . The second bearing 340 is fixed in the through slot 220 , and the fixing assembly 300 is coaxially fixed with an inner ring of the second bearing 340 .

[0055] Specifically, an anti-slip pad 210 is fixed on one surface of the positioning plate 200 , and the height of the anti-slip pad 210 is not less than the height of the rotating drum 310 .

[0056] Specifically, the anti-slip pad 210 functions to limit the position of the positioning plate 200 and to reserve space for the fixing assembly 300 and the gear plate 400 to rotate.

[0057] The device provided in the embodiment of the present application includes a positioning plate 200, a fixing assembly 300, a gear plate 400, and a transmission mechanism. The gear plate 400 is rotatably connected to one side of the positioning plate 200. The positioning plate 200 has four through slots 220, and the fixing assembly 300 is rotatably connected to the through slots 220. The fixing assembly 300 is used to hold the bolts. The outer ring of the fixing assembly 300 is a gear ring structure. The gear rings of the four fixing assemblies 300 are simultaneously engaged with the gear plate 400. The gear plate 400 is coaxially connected to the transmission mechanism. The transmission mechanism is arranged on the other side of the positioning plate 200 and is used to provide power to the gear plate 400. The following technical effects can be achieved:

[0058] In the embodiment of the present application, after the fixing assembly 300 holds the bolts, the transmission mechanism provides power to the gear plate 400, thereby driving multiple fixing assemblies 300 to rotate simultaneously, thereby realizing the tightening and disassembly of multiple bolts. It has a simple structure and flexible application, and can improve the efficiency of installation and disassembly of photovoltaic brackets.

[0059] Figure 5 This is a schematic diagram of the structure of a fixing assembly 300 in a bolt tightening device for a photovoltaic power station provided by an embodiment of the utility model. Figure 1 ; Figure 6 This is a schematic diagram of the structure of a fixing assembly 300 in a bolt tightening device for a photovoltaic power station provided by an embodiment of the utility model. Figure 2 ; The fixing assembly 300 is further described below:

[0060] Specifically, the fixing assembly 300 includes a rotating drum 310, a support rod 320 and a holding device 330; wherein:

[0061] One end of the rotating drum 310 is rotatably connected to the through slot 220, and the rotating drum 310 is coaxially connected to the through slot 220. The outer wall of the rotating drum 310 is a gear ring structure, and a support rod 320 is abutted on the inner wall of the rotating drum 310. Two holding devices 330 are slidably provided on the support rod 320, and the two holding devices 330 are used to hold the bolts.

[0062] Furthermore, the rotating drum 310 and the through slot 220 are rotatably connected via the second bearing 340 . The first bearing 420 is fixed in the through slot 220 . The rotating drum 310 and the inner ring of the second bearing 340 are coaxially fixed.

[0063] As an implementation method, Figure 5 The holding device 330 includes a clamping plate 331, a positioning cylinder 332 and a positioning bolt 333, wherein: the positioning cylinder 332 and the clamping plate 331 are both sleeved on the support rod 320, the positioning cylinder 332 and the holding plate are fixed to each other, and a positioning bolt 333 is provided on the positioning cylinder 332, and the positioning bolt 333 is used to limit the position of the positioning cylinder 332 on the support rod 320.

[0064] Specifically, the support rod 320 is located on the diameter of the drum 310 .

[0065] As another embodiment, Figure 6 ,exist Figure 5 On the basis of the embodiment, an annular inner groove 350 is radially opened on the inner wall of the rotating drum 310 , and the support rod 320 is a telescopic rod, and the support rod 320 abuts against the annular inner groove 350 .

[0066] Furthermore, the support rod 320 is a telescopic rod, such as a rotary telescopic rod, and the support rod 320 is fixed to the annular inner groove 350 by being extended and interfering with each other.

[0067] Specifically, under normal circumstances, the support rods 320 in the four rotating drums 310 are arranged in the same direction, and the four bolts can be clamped simultaneously by the clamping mechanism in the same direction. If simultaneous clamping is not possible and fine-tuning is required, the direction of the support rods 320 can be changed to change the direction of the clamping plate to achieve fine-tuning, thereby completing the clamping of the four bolts.

[0068] Furthermore, if a special situation occurs, only two or three bolts need to be tightened at the same time, and the redundant support rods 320 can be removed by shrinking.

[0069] Specifically, the transmission mechanism is used to provide power to the gear plate 400. The transmission mechanism is further described below:

[0070] As an embodiment, the transmission mechanism is a motor 510, which provides power to the gear plate 400 in an electric manner;

[0071] Specifically, the transmission mechanism includes a motor 510 , which is coaxially connected to the gear plate 400 . The motor 510 is connected to the other side of the positioning plate 200 . The motor 510 is also connected to a rechargeable battery, which is fixed on the positioning plate 200 .

[0072] As another embodiment, Figure 2 As shown, the transmission mechanism is a transmission handle 520, which can provide power to the gear plate 400 by hand cranking;

[0073] Specifically, the transmission mechanism includes a transmission handle 520 , one end of which is fixed to the rotating shaft 410 of the gear plate 400 .

[0074] As a third embodiment, Figure 3 As shown, the transmission mechanism includes a motor 510 and a transmission handle 520, and the user can choose to rotate the gear plate 400 electrically or manually. The structure of the motor 510 is the same as the above structure and will not be repeated here. Figure 7 This is a schematic diagram of the structure of a transmission handle in a bolt tightening device for a photovoltaic power station provided by an embodiment of the present invention. The transmission handle 520 is described in detail below:

[0075] like Figure 7 The transmission handle 520 includes a fixed rod 521 and a rod insertion handle 522. One end of the fixed rod 521 is fixedly connected to the rotating shaft 410 of the gear plate 400, and the other end of the fixed rod 521 is detachably connected or slidably connected to one end of the rod in the rod insertion handle 522.

[0076] Specifically, a sliding groove 525 is provided on the fixing rod 521, and the fixing rod 521 is hollow. One end of the insertion rod in the insertion rod handle 522 is sleeved in the fixing rod 521, and a screw rod 523 is fixed on the insertion rod. The screw rod 523 can slide in the sliding groove 525, and the screw rod 523 can be fixed with the nut 524.

[0077] Specifically, if the motor 510 is used for transmission, the rod in the rod handle 522 can be slid into the fixed rod 521 to shorten the handle. The gear plate 400 is then controlled by the motor 510. If the motor 510 is out of power or the handle needs to be rotated, the rod can be slid out of the fixed rod 521 for use.

[0078] This embodiment provides a bolt tightening device for a photovoltaic power station, which can achieve the following technical effects:

[0079] When using the embodiment provided herein, the device is pressed from the other side of the positioning plate 200, initially positioning the positioning plate 200 on the photovoltaic panel support using the anti-slip pad 210. After the corresponding bolts are secured by the securing device 330, the gear plate 400 is rotated according to the transmission mechanism. The gear plate 400 engages with the rotating drum 310, driving the rotating drum 310 to rotate together, thus enabling the tightening and removal of multiple bolts.

[0080] In the embodiment of the present application, the anti-slip pad 210 is used to increase the friction between the positioning plate 200 and the photovoltaic bracket, and to reserve space for rotation of the fixing component 300 and the gear plate 400, thereby ensuring that the present embodiment can operate stably.

[0081] In the embodiment of the present application, the support rod 320 is a telescopic rod. An annular inner groove 350 is radially defined on the inner wall of the rotating drum 310, and the support rod 320 abuts against the annular inner groove 350. Generally, the orientation of the support rods 320 in the four rotating drums 310 is aligned. If fine-tuning is required, the support rods 320 are retracted to change their orientation and then extended to secure them in the annular inner groove 350, thereby changing the orientation of the support plate for fine-tuning. Furthermore, if special circumstances arise, excess support rods 320 can be retracted and removed.

[0082] In the embodiment of the present application, the transmission mechanism may be a motor 510 or a transmission handle 520, or may include both a motor 510 and a transmission handle 520. The user can choose to rotate the gear plate 400 electrically or manually.

[0083] The present application has a simple structure and flexible application, and can realize the simultaneous tightening and loosening of multiple bolts, thereby improving the efficiency of installation and disassembly of photovoltaic brackets.

[0084] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative descriptions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bolt tightening device for a photovoltaic power station, characterized in that: It includes a positioning plate, a fixing assembly, a gear plate, and a transmission mechanism; The gear plate is rotatably connected to one side of the positioning plate, four through slots are formed on the positioning plate, a fixing assembly is rotatably connected to the through slot, the fixing assembly is used to support bolts, the outer ring of the fixing assembly is a gear ring structure, the gear rings of the four fixing assemblies are engaged with the gear plate at the same time, the gear plate is coaxially connected to the transmission mechanism, the transmission mechanism is arranged on the other side of the positioning plate, and the transmission mechanism is used to provide power to the gear plate.

2. The tensioning device according to claim 1, characterized in that: The fixing assembly includes a rotating drum, a support rod and a holding device; wherein One end of the rotating drum is rotatably connected to the through slot, the rotating drum is coaxially connected to the through slot, the outer wall of the rotating drum is a gear ring structure, the support rod is abutted or fixed on the inner wall of the rotating drum, and two holding devices are slidably provided on the support rod, and the two holding devices are used to hold the bolt.

3. The tensioning device according to claim 2, characterized in that: The holding device includes a clamping plate, a positioning cylinder and a positioning bolt, wherein The positioning tube and the clamping plate are both sleeved on the support rod. The positioning tube and the holding plate are fixed to each other. The positioning tube is provided with the positioning bolt, which is used to limit the position of the positioning tube on the support rod.

4. The tensioning device according to claim 2, characterized in that: An annular inner groove is radially opened on the inner wall of the rotating drum, and the support rod is a telescopic rod, and the support rod abuts against the annular inner groove.

5. The tensioning device according to claim 2, characterized in that: An anti-slip pad is also fixed on one surface of the positioning plate, and the height of the anti-slip pad is not less than the height of the rotating drum.

6. The tensioning device according to any one of claims 1 to 5, characterized in that: The transmission mechanism includes a motor, and the motor is coaxially connected to the gear plate.

7. The tensioning device according to claim 6, characterized in that: The motor is also connected to a rechargeable battery.

8. The tensioning device according to any one of claims 1 to 5, characterized in that: The transmission mechanism includes a transmission handle, one end of which is fixed on the rotating shaft of the gear plate.

9. The tensioning device according to claim 8, characterized in that: The transmission handle includes a fixed rod and a rod insertion handle, one end of the fixed rod is fixedly connected to the rotating shaft of the gear plate, and the other end of the fixed rod is detachably connected or slidably connected to one end of the rod in the rod insertion handle.

10. The tensioning device according to claim 9, characterized in that: The fixing rod is provided with a sliding groove and is hollow. One end of the insertion rod in the insertion rod handle is sleeved in the fixing rod. A screw rod is fixed on the insertion rod. The screw rod can slide in the sliding groove and can be fixed in conjunction with a nut.