A safety fence for construction projects

The construction safety fence design, which incorporates rectangular plug-in tubes and a spherical steering structure, solves the problems of complex installation and poor flexibility of traditional fences, enabling rapid assembly, disassembly, and flexible adjustment, thereby improving construction efficiency and safety.

CN224452392UActive Publication Date: 2026-07-03SHENZHEN HUAYI ART ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN HUAYI ART ENG CO LTD
Filing Date
2025-04-25
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Traditional construction safety fences are complex to install, time-consuming, lack flexibility, are difficult to adapt to irregular sites, have safety loopholes, and cannot meet the diverse needs of modern construction projects.

Method used

The design incorporates rectangular plug-in cylinders and plug-in square columns, combined with a spherical cavity and a steering ball steering structure, along with a flipping rod and an arc-shaped locking plate for a fixed snap-fit ​​structure, enabling rapid assembly and disassembly. The fence body can be flexibly adjusted to adapt to different site shapes.

Benefits of technology

It improves construction efficiency, enhances the reliability of safety protection, can tightly enclose irregular sites, meet complex and diverse construction needs, and reduce labor and time costs.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224452392U_ABST
    Figure CN224452392U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of building fences and discloses a construction safety fence, comprising: a fence body; two sets of rectangular plug-in tubes, fixedly installed on the first side of the fence body at intervals, wherein the rectangular plug-in tubes are hollow inside and the end of the rectangular plug-in tubes facing away from the fence body is rectangular open; two sets of plug-in square posts, fixedly installed on the second side of the rectangular plug-in tubes at intervals, wherein the first side and the second side are two symmetrical narrow sides on the fence body; a turning structure is provided between the fence body and the rectangular plug-in tubes; and a fixing snap-fit ​​structure is provided between the rectangular plug-in tubes and the plug-in square posts; this construction safety fence, through the precisely matched rectangular plug-in tubes and plug-in square posts and the fixing snap-fit ​​structure, allows the splicing process to be completed without complicated operations, enabling construction workers to quickly complete the fence assembly, improving construction efficiency, while also making the fence disassembly easy and convenient, facilitating the replanning of the construction site.
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Description

Technical Field

[0001] This utility model relates to the field of building fences, specifically a safety fence for building construction. Background Technology

[0002] In the construction industry, safety fences are crucial facilities for ensuring safety at construction sites. Construction sites experience frequent movement of personnel and equipment, presenting numerous potential hazards such as falling objects from heights, accidental falls, and unauthorized personnel trespassing. Safety fences effectively isolate construction areas, clearly defining boundaries and preventing unauthorized personnel from entering hazardous areas. This avoids accidents, protects the safety of construction workers and the public, and also helps maintain order at the construction site, ensuring the smooth progress of the project.

[0003] However, traditional construction safety fences have several drawbacks in practical applications. Firstly, the assembly of traditional fences is often complex, requiring significant manpower and time for component alignment and fixing during installation, resulting in low efficiency. This can delay project progress and increase construction costs, especially for projects with tight schedules. Secondly, traditional fences lack flexibility and are difficult to adjust to the complex and varied terrain and layout of construction sites. They cannot achieve tight enclosure in irregular areas, leaving security loopholes and reducing the reliability of safety protection. Therefore, they cannot fully meet the diverse safety protection needs of modern construction projects. To address these issues, we propose a new type of construction safety fence. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, this utility model provides a safety fence for construction projects, which solves the above-mentioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a safety fence for construction projects, comprising:

[0008] The fence itself;

[0009] Two sets of rectangular plug-in tubes are fixedly installed on the first side of the fence body at an interval between the top and bottom. The rectangular plug-in tubes are hollow inside, and the end of the rectangular plug-in tube facing away from the fence body is rectangular open.

[0010] Two sets of plug-in square posts are fixedly installed on the second side of the rectangular plug-in tube in an alternating manner, with the first side and the second side being two symmetrical narrow sides on the fence body.

[0011] A steering structure is provided between the fence body and the rectangular plug-in tube;

[0012] A fixed snap-fit ​​structure is installed between the rectangular plug-in tube and the plug-in square post, which is used to connect multiple fence bodies and facilitate disassembly.

[0013] Preferably, the rotating structure includes a spherical cavity and a swivel ball. The first side of the fence body has two sets of spherical cavities spaced vertically apart, and a rotatable swivel ball is nested inside each of the two sets of spherical cavities of the fence body. One side of the swivel ball protrudes from the outer side wall of the fence body.

[0014] The rectangular plug-in cylinder is horizontally fixedly installed on the area of ​​the steering ball that protrudes from the outer side wall of the fence body.

[0015] Preferably, the rectangular plug-in cylinders and plug-in square posts on both sides of the fence body are in one-to-one correspondence and their axes are located on the same horizontal line.

[0016] Preferably, the fixed snap-fit ​​structure includes a flipping rod, an arc-shaped snap plate, an arc-shaped snap plate, and an arc-shaped snap groove;

[0017] An integrated arc-shaped cavity is fixed in the middle of the rectangular plug tube, and the top of the arc-shaped cavity is a protruding arc shape corresponding to the top of the rectangular plug tube.

[0018] A vertical flipping rod is rotatably installed on the inner wall of the arc-shaped empty compartment at the center of the circle, and an integrated arc-shaped clamping plate is fixed at the top of the flipping rod.

[0019] The plug-in column includes an integrated snap-fit ​​end block that can be inserted into the rectangular plug-in cylinder. The snap-fit ​​end block has an arc-shaped slot with an open top that is adapted to the arc-shaped snap-fit ​​plate.

[0020] Preferably, the arc-shaped card plate is arc-shaped and fits against the inner wall of the top of the arc-shaped empty compartment.

[0021] Preferably, a blocking strip is fixedly installed on the bottom inner wall of the rectangular plug tube corresponding to the lower part of the arc-shaped clamping plate, and the plug-in square column can be inserted into the interior of the rectangular plug tube by the end side of the clamping end block abutting against the blocking strip;

[0022] After the snap-fit ​​end block abuts against the blocking strip, the center of the arc formed by the arc groove on the snap-fit ​​end block, the center of the arc at the top of the arc empty compartment, and the mounting point of the flipping rod and the inner wall of the rectangular plug-in cylinder are on the same horizontal line, and the arc length of the arc groove is greater than the arc length of the arc plate.

[0023] Preferably, the width of the snap-fit ​​end block is smaller than the width of the insertion square post, and there is a gap between the snap-fit ​​end block and the inner wall of the side where the flip rod is installed inside the rectangular insertion cylinder, forming a clearance cavity. The top outer wall, bottom outer wall and the side outer wall away from the clearance cavity on the snap-fit ​​end block are all in contact with the inner wall of the rectangular insertion cylinder.

[0024] Furthermore, the side of the arc-shaped groove corresponding to the clearance cavity is open;

[0025] The thickness of the clearance cavity is the same as the thickness of the flipping rod, and the lateral spacing between the end side of the plug-in square post corresponding to the snap-fit ​​end block and the flipping rod is greater than the height of the flipping rod.

[0026] The two ends of the blocking strip are aligned with the outer walls of the two sides of the snap-fit ​​end block.

[0027] Preferably, the rectangular plug-in cylinder is rotatably mounted on the outer side wall of the arc-shaped empty compartment, and a knob fixedly connected to the flipping rod is installed.

[0028] (III) Beneficial Effects

[0029] Compared with the prior art, this utility model provides a safety fence for construction projects, which has the following beneficial effects:

[0030] Efficient and convenient installation and disassembly experience: Precisely matched rectangular plug-in tubes and plug-in square posts eliminate the need for complex alignment operations during the splicing process, allowing construction workers to quickly complete fence assembly, significantly shortening installation time and greatly improving construction efficiency. Meanwhile, the rotating control lever and the fixed locking structure of the arc-shaped plate make fence disassembly equally easy and convenient, facilitating site replanning and fence relocation and reuse, reducing labor costs and time consumption.

[0031] Flexible and adaptable to various sites: Based on the spherical cavity and steering sphere, the fence has the freedom to rotate in multiple directions, allowing for flexible angle adjustment. Even on irregularly shaped construction site boundaries, the fence can fit snugly, achieving seamless enclosure, effectively eliminating blind spots, meeting the complex and diverse site layout needs of modern construction projects, and improving the comprehensiveness and effectiveness of safety protection. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the connection structure of the two sets of fence bodies of this utility model. Figure 1 ;

[0033] Figure 2 for Figure 1 A magnified view of part A in the diagram;

[0034] Figure 3 This is a schematic diagram of the connection structure of the two sets of fence bodies of this utility model. Figure 2 ;

[0035] Figure 4 for Figure 3 A magnified view of section B in the diagram;

[0036] Figure 5This is a schematic diagram of the fence body structure of this utility model.

[0037] In the diagram: 1. Fence body; 2. Rectangular plug-in tube; 3. Plug-in square post; 4. Spherical cavity; 5. Turning ball; 6. Arc-shaped cavity; 7. Flip rod; 8. Arc-shaped clamping plate; 9. Clamping end block; 10. Clearance cavity; 11. Arc-shaped groove; 12. Knob; 13. Blocking strip. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Please see Figure 1-5 A safety fence for construction projects, comprising:

[0040] Fence body 1;

[0041] Two sets of rectangular plug-in tubes 2 are fixedly installed on the first side of the fence body 1 at an interval between the top and bottom. The inside of the rectangular plug-in tubes 2 is hollow, and the end of the rectangular plug-in tubes 2 facing away from the fence body 1 is rectangular open.

[0042] Two sets of plug-in square posts 3 are fixedly installed on the second side of the rectangular plug-in tube 2 in an alternating manner, with the first side and the second side being the two narrow sides that are symmetrical on the fence body 1.

[0043] A steering structure is provided between the fence body 1 and the rectangular plug-in tube 2;

[0044] A fixed snap-fit ​​structure is set between the rectangular plug-in tube 2 and the plug-in square post 3 for connecting multiple sets of fence bodies 1 and for easy disassembly.

[0045] The rotating structure includes a spherical cavity 4 and a swivel ball 5. The first side of the fence body 1 is provided with two sets of spherical cavities 4 spaced vertically, and a rotatable swivel ball 5 is nested in each of the two sets of spherical cavities 4 of the fence body 1. One side of the swivel ball 5 protrudes from the outer side wall of the fence body 1.

[0046] The rectangular plug-in cylinder 2 is horizontally fixedly installed on the area of ​​the turning ball 5 corresponding to the area protruding from the outer side wall of the fence body 1. In actual operation, when it is necessary to adjust the angle of the adjacent fence body 1, the fence body 1 can rotate around the turning ball 5 within the spherical cavity 4. The turning ball 5, as the fulcrum of rotation, provides multi-directional rotational freedom due to its spherical structure, allowing the fence body 1 to flexibly change its angle. When the fence body 1 rotates, the rectangular plug-in cylinder 2 connected to it rotates together, a smooth and stable process. Functionally, this rotating structure allows the fence to adapt to construction site boundaries of different shapes. Whether it's a right angle, an arc, or other irregular shapes requiring enclosure, this can be achieved by adjusting the fence angle, greatly improving the fence's flexibility and adaptability to different scenarios.

[0047] The rectangular plug-in cylinders 2 and plug-in square posts 3 on both sides of the fence body 1 are positioned one-to-one and their axes are on the same horizontal line. This design ensures that the plug-in square posts 3 can be accurately and smoothly inserted into the rectangular plug-in cylinders 2 when splicing the fence body 1. When performing the splicing operation, the construction personnel do not need to spend extra effort to align the parts and can quickly complete the plugging action, thus improving the installation efficiency.

[0048] The fixed snap-fit ​​structure includes a flipping rod 7, an arc-shaped snap plate 8, and an arc-shaped snap groove 11;

[0049] An integrated arc-shaped cavity 6 is fixed in the middle of the rectangular plug-in tube 2, and the arc-shaped cavity 6 is a protruding arc shape corresponding to the top of the rectangular plug-in tube 2.

[0050] A vertical flipping rod 7 is rotatably installed on the inner wall of the arc-shaped empty compartment 6 at the center of the circle, and an integrated arc-shaped clamping plate 8 is fixed at the top of the flipping rod 7.

[0051] The plug-in square column 3 includes an integrated snap-fit ​​end block 9 that can be plugged into the rectangular plug-in cylinder 2. The snap-fit ​​end block 9 has an arc-shaped slot 11 with an open top that is adapted to the arc-shaped snap-fit ​​plate 8.

[0052] The arc-shaped clamping plate 8 is in the shape of an arc that fits against the inner wall of the top of the arc-shaped empty chamber 6; this allows the arc-shaped clamping plate 8 to move better within the arc-shaped empty chamber 6 when rotating, reducing shaking and offset.

[0053] A blocking strip 13 is fixedly installed on the bottom inner wall of the rectangular plug tube 2, corresponding to the lower part of the arc-shaped clamping plate 8. The plug-in square column 3 is inserted into the interior of the rectangular plug tube 2 and can abut against the blocking strip 13 through the end side of the clamping end block 9.

[0054] After the snap-fit ​​end block 9 abuts against the blocking strip 13, the center of the arc formed by the arc groove 11 on the snap-fit ​​end block 9, the center of the arc at the top of the arc cavity 6, and the mounting point of the flipping rod 7 and the inner wall of the rectangular plug tube 2 are on the same horizontal line. The arc length of the arc groove 11 is greater than the arc length of the arc plate 8, ensuring that the arc plate 8 can be fully snapped into the arc groove 11.

[0055] The width of the snap-fit ​​end block 9 is smaller than the width of the insertion square post 3, and there is a gap between the snap-fit ​​end block 9 and the inner wall of the side where the flip rod 7 is installed inside the rectangular insertion tube 2, forming a relief cavity 10. The top outer wall, bottom outer wall and the side outer wall away from the relief cavity 10 on the snap-fit ​​end block 9 are all in contact with the inner wall of the rectangular insertion tube 2.

[0056] Furthermore, the arc-shaped groove 11 is open on one side corresponding to the relief cavity 10;

[0057] The thickness of the clearance cavity 10 is the same as the thickness of the flipping rod 7. The lateral distance between the end side of the connecting snap-fit ​​end block 9 of the insertion square post 3 and the flipping rod 7 is greater than the height of the flipping rod 7. The two ends of the blocking strip 13 are aligned with the outer walls of both sides of the snap-fit ​​end block 9. When the insertion square post 3 is inserted into the rectangular insertion tube 2, the end side of the snap-fit ​​end block 9 abuts against the blocking strip 13, which plays a positioning role and ensures that the insertion depth of the snap-fit ​​end block 9 is accurate, so that the arc groove 11 and the arc plate 8 can be precisely matched. At this time, the centers of the three are on the same horizontal line, which creates conditions for the arc plate 8 to be smoothly inserted into the arc groove 11. The arc length of the arc groove 11 is greater than the arc length of the arc plate 8, ensuring that the plate can be fully embedded in the groove to achieve reliable locking. The width of the snap-fit ​​end block 9 is smaller than that of the insertion square post 3 and the design of fitting with the inner wall of the rectangular insertion tube 2, ensuring smooth insertion and connection stability. The clearance cavity 10 provides space for the rotation of the flip rod 7 to avoid interference. At the same time, its related dimensional design ensures that the flip rod 7 rotates flexibly and locks in reliably, making the connection precise and stable when splicing the fence and smooth when disassembling it, thus improving the convenience and safety of the fence.

[0058] The rectangular plug-in cylinder 2 is rotatably mounted on the outer side wall of the arc-shaped empty compartment 6 and is fixedly connected to the flipping rod 7. The operator can control the arc-shaped card plate 8 to be inserted into or rotated out of the arc-shaped card slot 11 by simply turning the knob 12 manually, so as to realize the splicing and disassembly of the fence. No special tools are required, the operation is intuitive and simple, improves work efficiency, and makes the fence more convenient and user-friendly.

[0059] Working principle: When preparing to assemble multiple sets of fence bodies 1, the operator holds one set of fence bodies 1 and precisely aligns its insertable square posts 3 with the rectangular insert tubes 2 of another set of fence bodies 1. Because the rectangular insert tubes 2 and the insertable square posts 3 on both sides of the fence body 1 are precisely aligned and their axes are on the same horizontal line, the insertable square posts 3 can be inserted into the rectangular insert tubes 2 without any obstruction. This design ensures the efficiency and accuracy of the assembly process and reduces installation difficulties caused by component misalignment.

[0060] The snap-fit ​​end block 9 of the plug-in column 3 is smoothly inserted into the rectangular plug-in cylinder 2. As the insertion depth increases, when the end side of the snap-fit ​​end block 9 abuts against the blocking strip 13, the center of the arc formed by the arc groove 11 on the snap-fit ​​end block 9, the center of the arc at the top of the arc cavity 6, and the mounting point of the flipping rod 7 on the inner wall of the rectangular plug-in cylinder 2 are exactly on the same horizontal line. This precise positional relationship lays the foundation for the smooth operation of the subsequent snap-fit ​​structure.

[0061] The operator manually rotates knob 12, which is fixedly connected to flipping rod 7. Rotation of knob 12 causes flipping rod 7 to rotate synchronously within rectangular insertion cylinder 2. Flipping rod 7 drives the arc-shaped locking plate 8, which is fixedly connected to it, to rotate, gradually engaging with arc-shaped slot 11. Because the arc-shaped locking plate 8 is arc-shaped and fits against the inner wall of the top of the arc-shaped cavity 6, and the arc length of arc-shaped slot 11 is greater than the arc length of arc-shaped locking plate 8, it ensures that the arc-shaped locking plate 8 is fully embedded in arc-shaped slot 11, achieving a stable and fixed connection between the two sets of fence bodies 1. At this point, the connection between the fence bodies 1 is tight, capable of withstanding certain external forces, ensuring safe isolation at the construction site.

[0062] When the fence needs to be dismantled, the operator rotates the knob 12 in the opposite direction. The knob 12 drives the flipping rod 7 to rotate in the opposite direction, causing the arc-shaped locking plate 8 to gradually rotate out of the arc-shaped locking groove 11. Due to the adaptive design of the arc-shaped locking plate 8 and the arc-shaped locking groove 11, the two can smoothly disengage during the rotation process.

[0063] After the arc-shaped locking plate 8 is completely rotated out of the arc-shaped locking groove 11, the locking state between the plug-in square post 3 and the rectangular plug-in cylinder 2 is released. At this time, the operator can smoothly pull out the plug-in square post 3 to separate the two connected fence bodies 1. This process is simple to operate and can quickly disassemble the fence, facilitating site replanning and fence relocation.

[0064] In practical use, if the layout of the construction site needs to be adjusted, or if the site shape is irregular, it may be necessary to bend adjacent fence bodies 1. In this case, a steering structure is provided between the fence body 1 and the rectangular insertion tube 2. This steering structure includes a spherical cavity 4 and a steering ball 5. The fence body 1 can rotate flexibly around the steering ball 5 within the spherical cavity 4. Operators can manually push the fence body 1 according to actual needs, causing it to rotate around the steering ball 5 as a fulcrum, thus adjusting the angle between adjacent fence bodies 1. This rotatable design can meet the enclosure needs of different construction sites. Whether it's a right-angle turn, an arc enclosure, or other irregularly shaped site isolation, it can all be achieved by flexibly adjusting the fence angle, greatly improving the practicality and adaptability of the fence.

[0065] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A construction site safety fence characterised in that, include: Fence body (1); Two sets of rectangular plug tubes (2) are fixedly installed on the first side of the fence body (1) in an alternating manner. The rectangular plug tubes (2) are hollow inside, and the end of the rectangular plug tubes (2) facing away from the fence body (1) is a rectangular opening. Two sets of plug-in square posts (3) are fixedly installed on the second side of the rectangular plug-in tube (2) in an alternating manner, with the first side and the second side being the two narrow sides that are symmetrical on the fence body (1). A steering structure is provided between the fence body (1) and the rectangular plug-in tube (2); A fixed snap-fit ​​structure is set between the rectangular plug-in tube (2) and the plug-in square post (3) for connecting multiple fence bodies (1) and for easy disassembly.

2. A construction site safety fence according to claim 1, characterised in that, The steering structure includes a spherical cavity (4) and a steering ball (5). The first side of the fence body (1) is provided with two sets of spherical cavities (4) spaced vertically. The fence body (1) is nested in each of the two sets of spherical cavities (4). One side of the steering ball (5) protrudes from the outer side wall of the fence body (1). The rectangular plug tube (2) is fixedly installed horizontally on the area of ​​the turning ball (5) that protrudes from the outer side wall of the fence body (1).

3. A safety fence for construction projects according to claim 2, characterized in that, The rectangular plug-in tubes (2) and plug-in square posts (3) on both sides of the fence body (1) are in one-to-one correspondence and their axes are on the same horizontal line.

4. A safety fence for construction projects according to claim 3, characterized in that, The fixed snap-fit ​​structure includes a flipping rod (7), an arc-shaped snap plate (8), an arc-shaped snap plate (8), and an arc-shaped snap groove (11). An integrated arc cavity (6) is fixed in the middle of the rectangular plug tube (2), and the arc cavity (6) is a protruding arc shape corresponding to the top of the rectangular plug tube (2). A vertical flipping rod (7) is rotatably installed on the inner wall of the arc-shaped empty compartment (6) at the center of the circle, and an integrated arc-shaped clamping plate (8) is fixed at the top of the flipping rod (7). The plug-in column (3) includes an integrated snap-fit ​​end block (9) that can be inserted into the rectangular plug-in cylinder (2). The snap-fit ​​end block (9) has an arc-shaped slot (11) with an open top that is compatible with the arc-shaped snap plate (8).

5. A safety fence for construction projects according to claim 4, characterized in that, The arc-shaped card plate (8) is in the shape of an arc that fits against the inner wall of the top of the arc-shaped empty compartment (6).

6. A safety fence for construction projects according to claim 5, characterized in that, A blocking strip (13) is fixedly installed on the bottom inner wall of the rectangular plug tube (2) corresponding to the lower part of the arc plate (8). The plug-in square column (3) is inserted into the interior of the rectangular plug tube (2) and abuts against the blocking strip (13) through the end side of the snap-fit ​​end block (9). After the snap-fit ​​end block (9) abuts against the blocking strip (13), the center of the arc formed by the arc groove (11) on the snap-fit ​​end block (9) and the center of the arc at the top of the arc cavity (6) and the mounting point of the flipping rod (7) and the inner wall of the rectangular plug tube (2) are on the same horizontal line, and the arc length of the arc groove (11) is greater than the arc length of the arc plate (8).

7. A safety fence for construction projects according to claim 6, characterized in that, The width of the snap-fit ​​end block (9) is smaller than the width of the plug-in square post (3), and there is a gap between the snap-fit ​​end block (9) and the inner wall of the side of the rectangular plug-in tube (2) where the flip rod (7) is installed, forming a relief cavity (10). The top outer wall, bottom outer wall and the side outer wall away from the relief cavity (10) of the snap-fit ​​end block (9) are all in contact with the inner wall of the rectangular plug-in tube (2). Furthermore, the arc-shaped groove (11) is open on one side of the relief cavity (10); The thickness of the relief cavity (10) is the same as the thickness of the flipping rod (7), and the lateral spacing between the end side of the plug-in square post (3) corresponding to the connecting snap-fit ​​end block (9) and the flipping rod (7) is greater than the height of the flipping rod (7). The two ends of the blocking strip (13) are aligned with the outer walls of the two sides of the snap-fit ​​end block (9).

8. A safety fence for construction projects according to claim 4, characterized in that, The rectangular plug tube (2) is rotatably mounted on the outer side wall of the arc-shaped empty compartment (6) and fixed to the flipping rod (7).