An assembled building energy-saving wall structure board

Abstract

The present application relates to the field of prefabricated buildings, and in particular to an energy-saving wall structural plate of a prefabricated building, comprising a plurality of wall bodies and a connecting mechanism. When the energy-saving wall of the prefabricated building of the present application is to be installed, the connecting plates at the side edges of the wall are connected by connecting components, and the connecting mechanism is composed of a limiting component, an adjusting component and a docking component. In the process of connecting adjacent walls, the limiting component, the adjusting component and the docking component can effectively adapt to each other and work together, so that the wall bodies can be quickly adjusted and docked when connected, and the installation is more convenient and quick, thereby effectively improving the installation efficiency of the wall bodies. The present application can achieve fast and accurate installation of energy-saving walls of prefabricated buildings to a certain extent.

Description

Technical Field

[0001] The present application relates to the field of prefabricated buildings, and in particular to an energy-saving wall structure panel of a prefabricated building. Background Art

[0002] At present, prefabricated buildings are a form of construction that uses prefabricated components in factories and is quickly assembled on site. They have the advantages of short construction period, energy saving, environmental protection, and controllable quality. It greatly shortens the construction period and reduces labor costs by reducing on-site construction links. At the same time, it reduces construction waste during the construction process and improves environmental benefits. Prefabricated buildings have strong design flexibility, can meet diverse construction needs, and have excellent seismic resistance and safety. They are widely used in residential, public buildings, industrial facilities and other fields. Compared with traditional cast-in-place concrete buildings, this construction method has higher efficiency and environmental protection advantages, and has become an important trend in the development of construction.

[0003] Prefabricated building energy-saving walls are energy-saving building exterior wall structures that are quickly built using prefabricated components. They are usually produced in a factory, integrating walls, insulation materials, and finishes, and assembled on site. This type of wall has good thermal insulation performance, reduces the energy consumption of the building, and has a short construction period, controllable quality, and less material waste, which is in line with the concept of green building and sustainable development.

[0004] In the related technologies, although the installation of prefabricated building energy-saving walls has the advantages of high efficiency and energy saving, there are still some problems and challenges in practical applications, such as the problem of incoordination between design and production, the problem of component transportation and stacking, the problem of assembly progress, the problem of difficult control of construction quality, the problem of integration with other systems, and the problem of maintenance and repair difficulty. The problems in the above-mentioned related technologies have basically been solved to a certain extent. However, the problem of how to achieve fast and accurate installation of prefabricated building energy-saving walls has not been well solved. Summary of the invention

[0005] In order to achieve rapid and accurate installation of energy-saving walls of prefabricated buildings, the present application provides a structural panel for energy-saving walls of prefabricated buildings.

[0006] The present application provides an assembled building energy-saving wall structure panel adopting the following technical solution:

[0007] An assembled building energy-saving wall structure panel, comprising:

[0008] The wall body is provided in multiple pieces, and the side edges of the multiple wall bodies are provided with connecting plates;

[0009] A connecting mechanism is arranged between adjacent wall bodies, and is used for connecting adjacent wall bodies. The connecting mechanism includes a limit assembly, an adjustment assembly, and a docking assembly. A connecting hole is provided on the connecting plate, and the limit assembly can be inserted into the connecting hole. The adjustment assembly is movably connected to the limit assembly to adjust the limit assembly. The docking assembly includes a docking screw and a docking nut. One end of the docking screw is connected to the limit assembly, and the docking screw is threadedly connected to the docking nut.

[0010] The limiting assembly includes a limiting cylinder, a limiting rod, and a limiting block. The limiting cylinder is provided with a through hole, the limiting rod is inserted into the limiting cylinder, the adjusting assembly is slidably connected to the limiting rod, the adjusting assembly is slidably connected to the limiting rod, and the adjusting assembly can drive the limiting block to be inserted into the through hole;

[0011] The adjusting assembly comprises a fixing ring, a first transmission ring and a second transmission ring, wherein the fixing ring is fixedly connected to one end of the docking screw rod close to the limit rod, the first transmission ring and the second transmission ring are both fixedly connected to the limit rod, an active rod is rotatably connected between the fixing ring and the limit block, a first passive rod is rotatably connected between the first transmission ring and the limit block, and a second passive rod is rotatably connected between the second transmission ring and the limit block;

[0012] An end of the limiting rod away from the docking screw is fixedly connected with an abutment plate, and the abutment plate can abut against the connecting plate;

[0013] A reset member is arranged in the limiting cylinder, one end of the reset member is connected to the inner wall of the limiting cylinder, and the other end is fixedly connected to one end of the limiting rod close to the adjusting assembly.

[0014] By adopting the above technical solution, the prefabricated building energy-saving wall structure of the present application is set as a combination of a wall body and a connecting mechanism, and the connecting mechanism is composed of a limit assembly, an adjustment assembly and a docking assembly, which is used to stably and adjustably connect adjacent wall bodies. By adjusting the limit assembly, the tight connection of the wall panels can be ensured, and the design of the docking screw and nut ensures the stability of the connection, which makes the wall installation not only efficient, but also able to maintain the firmness and stability of the connection. The present application can achieve rapid and accurate installation of prefabricated building energy-saving walls to a certain extent;

[0015] At the same time, the functions of the limit cylinder, limit rod and limit block are clarified. The main function of the limit assembly is to ensure that the adjacent wall bodies can be accurately aligned and fixed during installation. The design of the limit block enables the connection hole and the limit assembly to be tightly combined. Through sliding and rotating connection, the position of the wall panel can be better adjusted, making the installation more flexible and accurate.

[0016] The setting of the adjustment component explains how the limit assembly can be adjusted through a series of transmission rings, active rods, first passive rods, and second passive rods. The adjustment component not only allows the wall panels to be adjusted during the connection process, but also ensures the smooth operation of the limit assembly through structures such as fixed rings, active rods, first passive rods, and second passive rods. Through this design, the wall panels can be docked more flexibly, while ensuring that the adjustment process is smooth and not affected by the outside world, thereby improving the reliability of the installation;

[0017] The abutment plate at the far end of the limit rod is designed to ensure the firmness of the connection. When the abutment plate contacts the connection plate, it can further enhance the fixing effect of the wall and reduce the displacement between the walls. This design improves the stability of the wall plate during installation and enhances the wind and earthquake resistance of the overall structure.

[0018] The reset piece in the limit tube provides an automatic reset function, ensuring that the limit rod can automatically return to its initial position after installation or adjustment. This not only simplifies the installation process, but also reduces the error caused by human operation, so that the wall panel can remain stable after installation.

[0019] Optionally, the first passive rod and the second passive rod are always in a parallel state.

[0020] By adopting the above technical solution, the parallel design of the first passive rod and the second passive rod can provide more stable support when adjusting the limit block, prevent tilting or dislocation during the adjustment process, and further improve the stability during the installation process.

[0021] Optionally, a plurality of the limit blocks are provided, a plurality of through holes are provided on the limit cylinder, and the plurality of limit blocks correspond one-to-one to the plurality of through holes.

[0022] By adopting the above technical solution, the design of multiple limit blocks and perforations allows the wall panels to be positioned and fixed at multiple points during installation. Such a multi-point limit structure can improve the stability of the entire wall, avoid the uneven stress caused by single-point fixation, and ensure that all parts of the wall are firmly connected.

[0023] Optionally, a rubber anti-slip layer is provided at one end of the limiting block away from the limiting rod.

[0024] By adopting the above technical solution, the rubber anti-skid layer design increases the friction during installation and prevents the wall panels from sliding during adjustment or docking.

[0025] Optionally, a limiting gasket is further provided on the butt screw, and the limiting gasket can be passed through the butt screw, with one end face abutting against the connecting plate and the other end face abutting against the butt nut.

[0026] By adopting the above technical solution, the limiting gasket is used to provide buffering and stability between the butt screw and the connecting plate and nut, which helps to reduce wear and stress concentration at the connection site and extend the service life of the connecting parts. At the same time, the gasket can increase the tightness between the screw and the nut to ensure the firmness of the connection.

[0027] Optionally, two butt nuts are provided, and an anti-skid pad is provided between the two butt nuts, and the anti-skid pad is provided in a curved structure, and at least two anti-skid pads are provided.

[0028] By adopting the above technical solution, the anti-skid pad between the two butt nuts is designed to be a curved structure, and multiple anti-skid pads are provided. This design can further improve the anti-skid performance of the connection and prevent the screw from loosening under the action of external force. At the same time, the curved structure of multiple anti-skid pads disperses the pressure, making the connection of the wall panels more uniform and stable, and enhancing the impact resistance and vibration resistance.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. The prefabricated building energy-saving wall structure of the present application is set as a combination of a wall body and a connecting mechanism, the connecting mechanism is composed of a limit assembly, an adjustment assembly and a docking assembly, and is used to stably and adjustably connect adjacent wall bodies. By adjusting the limit assembly, the tight connection of the wall panels can be ensured, and the design of the docking screws and nuts ensures the stability of the connection, which makes the wall installation not only efficient, but also able to maintain the firmness and stability of the connection. The present application can achieve rapid and accurate installation of prefabricated building energy-saving walls to a certain extent;

[0031] 2. The adjustment component not only allows the wall panels to be adjusted during the connection process, but also ensures the smooth operation of the limit component through structures such as fixed rings and transmission rods. Through this design, the wall panels can be docked more flexibly, while ensuring that the adjustment process is smooth and not affected by the outside world, thereby improving the reliability of the installation;

[0032] 3. The reset piece in the limit tube provides an automatic reset function, ensuring that the limit rod can automatically return to its initial position after installation or adjustment. This not only simplifies the installation process, but also reduces the error caused by human operation, so that the wall panel can remain stable after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the overall structure of an assembled building energy-saving wall structural panel when it is installed in an embodiment of the present application (only two wall bodies are shown).

[0034] Figure 2 It is a schematic diagram of an embodiment of the present application in which the connecting mechanism is installed before the connecting plate.

[0035] Figure 3 It is a schematic detailed diagram of the structure of the connecting mechanism in the embodiment of the present application.

[0036] Figure 4 yes Figure 3 The schematic diagram of the structure behind the limit cylinder, the abutment plate and the docking nut is hidden in the figure.

[0037] Figure 5 It is a schematic diagram of the positions and connection relationship of the active rod, the first passive rod, the second passive rod and the limit block in the embodiment of the present application.

[0038] Description of reference numerals:

[0039] 1. Wall body; 2. Connecting plate; 21. Connecting hole; 3. Connecting mechanism; 31. Limiting assembly; 311. Limiting cylinder; 312. Limiting rod; 313. Limiting block; 32. Adjusting assembly; 321. Fixing ring; 322. First transmission ring; 323. Second transmission ring; 33. Docking assembly; 331. Docking screw; 332. Docking nut; 4. Perforation; 51. Active rod; 52. First passive rod; 53. Second passive rod; 6. Abutment plate; 7. Reset member; 8. Rubber anti-skid layer; 9. Limiting gasket; 10. Anti-skid pad. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-Figure 5 This application is described in further detail.

[0041] The embodiment of the present application discloses an assembled building energy-saving wall structure panel.

[0042] It should be noted that, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] It should also be noted that the main technical problem solved by this application is how to achieve the rapid and accurate installation of prefabricated building energy-saving walls. Compared with traditional ordinary walls, the complexity of solving these problems is also higher. This is because prefabricated energy-saving walls not only involve the precise production and transportation of prefabricated components, but also require high-precision installation and adjustment on site. At the same time, energy-saving walls usually integrate functions such as thermal insulation and waterproofing, and the integrity of these functions needs to be maintained during construction. Therefore, the embodiments of this application do not elaborate too much on how energy-saving walls save energy and the structure inside the wall, which is easier for those skilled in the art to understand.

[0044] Reference Figure 1 A prefabricated building energy-saving wall structural panel includes multiple wall bodies 1 and a connecting mechanism 3. When the prefabricated building energy-saving wall of the present application is to be installed, the connecting plates 2 at the side edges of the wall are connected through the connecting components, and the connecting mechanism 3 is composed of a limiting component 31, an adjusting component 32 and a docking component 33. In the process of connecting adjacent walls, the limiting component 31, the adjusting component 32 and the docking component 33 can effectively adapt to each other and work together, so that the wall body 1 can be quickly adjusted and docked when connected, and the installation is more convenient and quick, thereby effectively improving the installation efficiency of the wall body 1. The present application can achieve fast and accurate installation of prefabricated building energy-saving walls to a certain extent.

[0045] Specifically, in the embodiment of the present application, a plurality of wall bodies 1 are provided, and the side edges of the plurality of wall bodies 1 are provided with connecting plates 2. Only two are shown in the drawings of the present application specification. It should be noted that the number of wall bodies 1 is determined according to the actual building structure, and the thickness of the connecting plate 2 is less than the thickness of the later finishing layer, that is, it will be hidden, which is relatively easy to understand for those skilled in the art, so no excessive elaboration is made in the embodiment of the present application.

[0046] Specifically, in the embodiment of the present application, the connection mechanism 3 is arranged between adjacent wall bodies 1, and the connection mechanism 3 is used for connecting adjacent wall bodies 1. The connection mechanism 3 includes a limit assembly 31, an adjustment assembly 32, and a docking assembly 33. A connection hole 21 is provided on the connection plate 2, and the limit assembly 31 can be inserted into the connection hole 21. The adjustment assembly 32 is movably connected to the limit assembly 31 to adjust the limit assembly 31. The docking assembly 33 includes a docking screw 331 and a docking nut 332. One end of the docking screw 331 is connected to the limit assembly 31, and the docking screw 331 is threadedly connected to the docking nut 332. That is, during installation, the adjacent wall panels are positioned through the connection hole 21 on the connection plate 2, and the limit assembly 31 maintains the position of the wall panels by inserting the connection hole 21. The adjustment assembly 32 allows the wall position to be fine-tuned according to the site conditions to ensure the installation accuracy. The docking assembly 33 (the docking screw 331 and the nut) further fixes the wall to ensure the stability of the structure.

[0047] Furthermore, the limit assembly 31 includes a limit cylinder 311, a limit rod 312, and a limit block 313. The limit cylinder 311 is provided with a through hole 4, the limit rod 312 is inserted into the limit cylinder 311, the adjustment assembly 32 is slidably connected to the limit rod 312, the limit block 313 is rotatably connected to the adjustment assembly 32, and the adjustment assembly 32 can drive the limit block 313 to be inserted into the through hole 4.

[0048] The design of the limit assembly 31 enables the wall panel to be accurately limited during installation, and can be moved or adjusted slightly through the adjustment components. The combination of the limit cylinder 311 and the limit rod 312 ensures the initial positioning of the wall, and the limit block 313 can be slidably connected to the limit rod 312 through the adjustment assembly 32 and can be accurately adjusted to a suitable position. This limit design prevents the wall panel from being greatly offset during installation, ensuring the accuracy of the entire installation process. At the same time, the sliding connection of the adjustment assembly 32 can quickly and effectively adjust the position of the wall.

[0049] Furthermore, the adjustment assembly 32 includes a fixed ring 321, a first transmission ring 322, and a second transmission ring 323. The fixed ring 321 is fixedly connected to one end of the docking screw 331 close to the limiting rod 312. The first transmission ring 322 and the second transmission ring 323 are both fixedly connected to the limiting rod 312. An active rod 51 is rotatably connected between the fixed ring 321 and the limiting block 313. A first passive rod 52 is rotatably connected between the first transmission ring 322 and the limiting block 313. A second passive rod 53 is rotatably connected between the second transmission ring 323 and the limiting block 313.

[0050] The adjustment component 32 enables the limit component 31 to more accurately control the movement of the limit block 313 through the cooperation of the annular structure and the active rod 51, the first passive rod 52, and the second passive rod 53. The precise cooperation between the transmission ring and the active rod 51, the first passive rod 52, and the second passive rod 53 ensures the smooth movement of the limit block 313. Through the interaction between the active rod 51 and the first passive rod 52 and the second passive rod 53, the limit block 313 can adjust its position smoothly, which makes it possible to fine-tune the position of the limit block 313 according to actual conditions during the installation process, further improving the accuracy of the installation, while ensuring that the entire limit component 31 is stable and not easy to loosen during the connection process.

[0051] At the same time, for the adjustment assembly 32, the first passive rod 52 and the second passive rod 53 are always in a parallel state.

[0052] The parallel design of the first passive rod 52 and the second passive rod 53 can provide more stable support when adjusting the limit block 313, prevent tilting or misalignment during the adjustment process, and further improve the stability during the installation process. The parallel design has a better force form, which can make the limit block 313 more closely abut against the wall of the connecting hole 21.

[0053] Further, regarding the limit block 313, there are multiple limit blocks 313, and there are multiple perforations 4 on the limit tube 311, and the multiple limit blocks 313 correspond to the multiple perforations 4 one by one. In the embodiment of the present application, there are three limit blocks 313, and there are three corresponding perforations 4. In other embodiments, the limit blocks 313 can also be set to one, two, four or other multiple numbers, and the perforations 4 can be set to one, two, four or other multiple numbers, which are all embodiments that can be implemented in the present application.

[0054] Multiple limit blocks 313 and corresponding perforations 4 can realize accurate positioning of the wall panel at multiple points. The design of multiple limit points increases the connection stability of the wall panel, avoids the situation where the local stress of the wall panel is excessive or unbalanced due to single-point limit, and ensures the stability and uniform stress of the wall panel in the whole structure.

[0055] Regarding the limiting assembly 31 , referring to the figure, one end of the limiting rod 312 away from the docking screw 331 is fixedly connected to the abutment plate 6 , and the abutment plate 6 can abut against the connecting plate 2 .

[0056] The abutment plate 6 provides additional fixed support by contacting the connection plate 2 to prevent the wall plate from moving due to force after the connection is completed. The abutment plate 6 acts like a physical limiter, further strengthening the tightness and shear resistance of the connection, ensuring that the wall plate will not loosen or misalign under the action of external forces.

[0057] At the same time, a reset member 7 is provided in the limiting cylinder 311 , one end of the reset member 7 is connected to the inner wall of the limiting cylinder 311 , and the other end is fixedly connected to one end of the limiting rod 312 close to the adjusting assembly 32 .

[0058] The reset member 7 automatically resets the limit rod 312 after use, reducing the steps of manual adjustment and simplifying the installation process. The reset member 7 can ensure that the limit assembly 31 is always in the default state when not in use, which is convenient for quick adjustment the next time, and avoids the problem that the limit assembly 31 cannot return to the initial position due to long-term use or external force.

[0059] Furthermore, a rubber anti-slip layer 8 is provided at one end of the limiting block 313 away from the limiting rod 312 .

[0060] The rubber anti-skid layer 8 can effectively increase the friction between the limit block 313 and the wall panel to prevent slipping during adjustment or connection. The design of the anti-skid pattern is very important for improving the stability of the entire connection system, especially when subjected to external vibration or impact, the anti-skid function can greatly reduce the possibility of slipping and ensure the stability of the wall panel after installation.

[0061] Regarding the docking assembly 33 , referring to the figure, a limiting gasket 9 is also provided on the docking screw 331 . The limiting gasket 9 can be passed through the docking screw 331 , and one end face abuts against the connecting plate 2 , and the other end face abuts against the docking nut 332 .

[0062] The limiting gasket 9 acts as a buffer between the butt screw 331 and the connecting plate 2 and nut, avoiding possible wear caused by direct contact of metal parts. The limiting gasket 9 can also disperse stress, making the wall panel connection tighter, reducing fatigue and damage caused by stress concentration, and extending the service life of the entire connection assembly.

[0063] At the same time, two butt nuts 332 are provided, and an anti-skid pad 10 is provided between the two butt nuts 332 . The anti-skid pad 10 is provided in a curved structure, and at least two anti-skid pads 10 are provided.

[0064] The anti-skid pads 10 with curved surface structure can effectively disperse the pressure and enhance the anti-skid ability of the connecting parts. Multiple anti-skid pads 10 provide additional cushioning and stability to prevent the nuts from loosening when vibrating or stressed. This design ensures the long-term stability of the wall panels after connection, while increasing the impact and vibration resistance.

[0065] The implementation principle of an assembled building energy-saving wall structure panel in an embodiment of the present application is as follows: the assembled building energy-saving wall structure of the present application is set as a combination of a wall body 1 and a connecting mechanism 3, and the connecting mechanism 3 is composed of a limiting component 31, an adjusting component 32 and a docking component 33, which is used to stably and adjustably connect adjacent wall bodies 1. By adjusting the limiting component 31, the tight connection of the wall panels can be ensured, and the design of the docking screw 331 and the nut ensures the stability of the connection, which makes the wall installation not only efficient, but also able to maintain the firmness and stability of the connection. The present application can achieve rapid and accurate installation of assembled building energy-saving walls to a certain extent.

[0066] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An assembled building energy-saving wall structure panel, characterized in that: include: A wall body (1) is provided in multiple pieces, and side edges of the multiple wall bodies (1) are provided with connecting plates (2); A connecting mechanism (3) is arranged between adjacent wall bodies (1), the connecting mechanism (3) being used for connecting adjacent wall bodies (1), the connecting mechanism (3) comprising a limiting component (31), an adjusting component (32) and a docking component (33), the connecting plate (2) being provided with a connecting hole (21), the limiting component (31) being capable of being inserted into the connecting hole (21), the adjusting component (32) being movably connected to the limiting component (31) so as to adjust the limiting component (31), the docking component (33) comprising a docking screw (331) and a docking nut (332), one end of the docking screw (331) being connected to the limiting component (31), and the docking screw (331) being threadedly connected to the docking nut (332); The limiting assembly (31) comprises a limiting cylinder (311), a limiting rod (312), and a limiting block (313); the limiting cylinder (311) is provided with a through hole (4); the limiting rod (312) is inserted into the limiting cylinder (311); the adjusting assembly (32) is slidably connected to the limiting rod (312); the adjusting assembly (32) is slidably connected to the limiting rod (312); and the adjusting assembly (32) can drive the limiting block (313) to be inserted into the through hole (4); The adjustment assembly (32) comprises a fixed ring (321), a first transmission ring (322), and a second transmission ring (323); the fixed ring (321) is fixedly connected to one end of the docking screw (331) close to the limit rod (312); the first transmission ring (322) and the second transmission ring (323) are both fixedly connected to the limit rod (312); an active rod (51) is rotatably connected between the fixed ring (321) and the limit block (313); a first passive rod (52) is rotatably connected between the first transmission ring (322) and the limit block (313); and a second passive rod (53) is rotatably connected between the second transmission ring (323) and the limit block (313); An end of the limiting rod (312) away from the docking screw rod (331) is fixedly connected to an abutment plate (6), and the abutment plate (6) is capable of abutting against the connecting plate (2); A reset member (7) is arranged in the limiting cylinder (311), one end of the reset member (7) is connected to the inner wall of the limiting cylinder (311), and the other end is fixedly connected to one end of the limiting rod (312) close to the adjustment assembly (32).

2. The assembled building energy-saving wall structure panel according to claim 1, characterized in that: The first passive rod (52) and the second passive rod (53) are always in a parallel state.

3. The assembled building energy-saving wall structure panel according to claim 1, characterized in that: A plurality of the limiting blocks (313) are provided, a plurality of through holes (4) are provided on the limiting cylinder (311), and the plurality of limiting blocks (313) correspond one-to-one to the plurality of through holes (4).

4. The assembled building energy-saving wall structure panel according to claim 1, characterized in that: An end of the limiting block (313) away from the limiting rod (312) is provided with a rubber anti-slip layer (8).

5. The assembled building energy-saving wall structure panel according to claim 1, characterized in that: A limiting gasket (9) is also provided on the butt screw (331). The limiting gasket (9) can be passed through the butt screw (331), with one end surface abutting against the connecting plate (2) and the other end surface abutting against the butt nut (332).

6. The assembled building energy-saving wall structure panel according to claim 1, characterized in that: Two butt nuts (332) are provided, and an anti-skid pad (10) is provided between the two butt nuts (332). The anti-skid pad (10) is provided in a curved surface structure, and at least two anti-skid pads (10) are provided.

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