Environment-friendly intelligent recycling device for renewable resources
By introducing hydraulic cylinder drive push plate and push block mechanism into the recycling device, combining the automatic replacement and limiting functions of the level gauge and PLC controller, the problem that the existing recycling device cannot be replaced in time when the collection cylinder is full is solved, and the collection efficiency of the recycling resource and the service life of the recycling device are improved.
Patent Information
- Application Number
- CN202421803433.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-07-29
AI Technical Summary
The existing recycling devices cannot be replaced in time when the collection cylinder is full, which affects the subsequent collection and efficiency of recycling equipment for subsequent recycling resources.
An environmentally friendly intelligent recycling device for recycling resources is designed, using hydraulic cylinder drive push plate and push block mechanism, and the automatic replacement and limiting of the collection cylinder is achieved through a level gauge and a PLC controller.
It realizes timely replacement of collection cylinders, improves the collection efficiency of renewable resources, extends the service life of the recycling device, and promotes environmental protection and resource conservation.
Smart Images

Figure CN222892503U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of recycling devices, in particular to an environmentally friendly renewable resource intelligent recycling device. Background Art
[0002] Renewable resources are resources that can be repeatedly recycled, processed and reused. Renewable resources refer to various wastes generated in the process of social production and life consumption that have lost all or part of their original use value and can regain their use value after recycling and processing.
[0003] The processing of renewable resources includes simple processing such as cleaning, sorting, crushing, cutting, disassembling, and packaging to change the physical properties of renewable resources such as density, humidity, length, thickness, softness and hardness. In order to protect the environment and save resources, renewable resources need to be recycled through recycling devices. Recycling renewable resources is helpful for environmental protection.
[0004] However, when the existing recycling device is used, it is not conducive to timely replacing the collection cylinder used to collect renewable resources. When the collection cylinder is full of renewable resources, if the collection cylinder is not replaced in time, it will affect the collection of subsequent renewable resources and is not conducive to the use of the recycling device.
[0005] Therefore, we proposed an environmentally friendly renewable resource intelligent recycling device. Utility Model Content
[0006] The purpose of the utility model is to provide an environmentally friendly renewable resource intelligent recycling device to solve the problems raised in the above background technology.
[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0008] An environmentally friendly renewable resource intelligent recycling device comprises an installation box, wherein a plurality of collecting barrels are placed in the installation box, a first fixed frame is installed at one end of the bottom of one side of the installation box, a first push plate is installed in the first fixed frame for sliding in a horizontal direction, a first push block is fixed to the top and bottom of the surface of the first push plate close to the collecting barrel, a fourth through hole is provided on the upper side of the installation box close to one end of the first fixed frame, a second fixed frame is installed at the bottom of the installation box away from the fourth through hole, a second push plate is installed in the second fixed frame for sliding in a horizontal direction, a second push block is fixed to the top and bottom of the surface of the second push plate close to the collecting barrel, a mounting plate is fixed to the upper surface of the installation box, and a level meter is installed at the middle of the lower surface of the mounting plate close to one end of the fourth through hole.
[0009] As a further solution of the utility model: the fourth through hole penetrates the inner surface and the outer surface of the corresponding position on the installation box, the level meter penetrates the upper surface and the lower surface of the corresponding position on the installation plate, the lower surface of the collecting cylinder is fixed with a second limit plate, the outer side of the upper end of the outer ring surface of the collecting cylinder is fixed with a first limit plate, and a retention hole matching the first limit plate and the second limit plate is opened in the middle of the end of the installation plate away from the fourth through hole.
[0010] By adopting the above technical solution: the provision of the first limiting plate and the second limiting plate is helpful to limit the collecting cylinder.
[0011] As a further solution of the utility model: the retention holes all penetrate the upper surface and the lower surface of the mounting plate at corresponding positions, a PLC controller is installed in the middle of the upper surface of the mounting plate away from the retention holes, and the level meter is electrically connected to the PLC controller.
[0012] By adopting the above technical solution: the setting of the mounting plate can fix and limit the PLC controller.
[0013] As a further solution of the utility model: a matching first through hole is opened on the inner side of the first fixed frame corresponding to the side of the installation box close to the first fixed frame, the first through hole penetrates the inner surface and the outer surface of the corresponding position on the installation box, a first fixing plate is fixed on the side surface of the first fixed frame away from the installation box, a first hydraulic cylinder is installed in the middle of the side surface of the first fixing plate away from the first fixed frame, and the first hydraulic cylinder is electrically connected to the PLC controller.
[0014] By adopting the above technical solution: the provision of the first fixing plate can fix and limit the first hydraulic cylinder.
[0015] As a further solution of the utility model: the output rod of the first hydraulic cylinder faces the first fixed plate and passes through the two side surfaces of the middle part of the first fixed plate, the output rod of the first hydraulic cylinder is fixedly connected between one end close to the first push plate and the middle part of the opposite surface of the first push plate, and the first limiting rod is fixed to the middle part of the upper end and the middle part of the lower end of the surface of one side of the first push plate close to the first hydraulic cylinder. The first limiting rod is in a horizontal state and passes through the two side surfaces of the corresponding position on the first fixed plate.
[0016] By adopting the above technical solution: the provision of the first hydraulic cylinder helps to drive the first push plate to move.
[0017] As a further solution of the utility model: a matching second through hole is opened on the inner side of the second fixed frame corresponding to the bottom of the installation box near one end of the second fixed frame, the second through hole penetrates the inner surface and the outer surface of the corresponding position on the installation box, a second fixing plate is fixed on the side surface of the second fixed frame away from the installation box, a second hydraulic cylinder is installed in the middle of the side surface of the second fixing plate away from the second fixed frame, and the second hydraulic cylinder is electrically connected to the PLC controller.
[0018] By adopting the above technical solution: the second fixing plate is provided, so that the second hydraulic cylinder can be fixed and limited.
[0019] As a further solution of the utility model: the output rod of the second hydraulic cylinder faces the second fixed plate and passes through the two side surfaces of the middle part of the second fixed plate, the output rod of the second hydraulic cylinder is fixedly connected between one end close to the second push plate and the middle part of the opposite surface of the second push plate, and the second limit rod is fixed at the middle part of the upper end and the middle part of the lower end of the surface of one side of the second push plate close to the second hydraulic cylinder. The second limit rod is in a horizontal state and passes through the two side surfaces of the corresponding position on the second fixed plate.
[0020] By adopting the above technical solution: the provision of the second hydraulic cylinder helps to drive the second push plate to move.
[0021] As a further solution of the utility model: a connecting plate is fixed to the bottom of one end of the installation box away from the second fixed frame on one side surface away from the first fixed frame, baffles are fixed on both sides of the upper surface of the connecting plate and the corresponding positions on the installation box, and a matching third through hole is opened between the opposite surfaces of the baffles and the opposite surfaces of the corresponding baffles on the installation box.
[0022] By adopting the above technical solution: the setting of the connecting plate can fix and limit the baffle, which is convenient for stable use of the baffle.
[0023] Compared with the prior art, the beneficial effects of the utility model are:
[0024] 1. In the utility model, the first push plate and the first push block will push the collection cylinder filled with renewable resources, and the second push plate and the second push block will push the subsequent empty collection cylinder to move so as to replace the collection cylinder. When in use, it is helpful to replace the collection cylinder used to collect renewable resources in time. When the collection cylinder is full of renewable resources, the collection cylinder can be replaced in time to facilitate the collection of renewable resources, which is helpful for the use of the recycling device.
[0025] 2. In the utility model, the level meter can detect the level of the recycled resources collected in the collecting cylinder. When the collecting cylinder is full of recycled resources, the level meter can transmit the detected data information to the PLC controller. The PLC controller can control the first hydraulic cylinder and the second hydraulic cylinder. The first fixed plate can limit the first push plate through the first limiting rod to facilitate the stable movement of the first push plate. The second fixed plate can limit the second push plate through the second limiting rod to facilitate the stable movement of the second push plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a structural schematic diagram of the utility model;
[0027] Figure 2 This is a schematic diagram of the second fixing frame structure of the utility model;
[0028] Figure 3 This is a schematic diagram of the first fixed frame structure of the utility model;
[0029] Figure 4 This is a schematic diagram of the installation box structure of the utility model.
[0030] In the figure: 1, installation box; 2, first through hole; 3, second through hole; 4, third through hole; 5, fourth through hole; 6, installation plate; 7, retention hole; 8, first fixed frame; 9, second fixed frame; 10, first fixed plate; 11, second fixed plate; 12, first hydraulic cylinder; 13, second hydraulic cylinder; 14, first push plate; 15, second push plate; 16, first limiting rod; 17, second limiting rod; 18, first push block; 19, second push block; 20, connecting plate; 21, baffle; 22, collecting cylinder; 23, first limiting plate; 24, second limiting plate; 25, level meter; 26, PLC controller. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] See also Figures 1 to 4In the embodiment of the utility model, an environmentally friendly renewable resource intelligent recycling device includes an installation box 1, in which a plurality of collecting tubes 22 are placed, a first fixed frame 8 is installed at one end of the bottom of one side of the installation box 1, a first push plate 14 is installed in the first fixed frame 8 along the horizontal direction, and a first push block 18 is fixed on the top and bottom of the surface of the first push plate 14 near the collecting tube 22, a fourth through hole 5 is opened on the upper side of the installation box 1 near the first fixed frame 8, a second fixed frame 9 is installed at the bottom of the installation box 1 away from the fourth through hole 5, a second fixed frame 9 is installed in the second fixed frame 9 along the horizontal direction, and a second push plate 15 is installed in the second fixed frame 9 along the horizontal direction, and the second push plate 15 is near the collecting tube 22 side. A second push block 19 is fixed to the top and bottom of the surface, a mounting plate 6 is fixed to the upper surface of the mounting box 1, and a level meter 25 is installed in the middle of the lower surface of the mounting plate 6 near one end of the fourth through hole 5. The first push plate 14 and the first push block 18 will push the collection cylinder 22 filled with renewable resources, and the second push plate 15 and the second push block 19 will push the subsequent empty collection cylinder 22 to move so as to replace the collection cylinder 22. When in use, it is helpful to replace the collection cylinder 22 used for collecting renewable resources in time. When the collection cylinder 22 is full of renewable resources, the collection cylinder 22 can be replaced in time to facilitate the collection of renewable resources, which is helpful for the use of the recycling device.
[0033] Among them, the fourth through hole 5 passes through the inner surface and the outer surface of the corresponding position on the installation box 1, the level meter 25 passes through the upper surface and the lower surface of the corresponding position on the installation plate 6, the lower surface of the collecting cylinder 22 is fixed with a second limiting plate 24, and the outer side of the upper end of the outer ring surface of the collecting cylinder 22 is fixed with a first limiting plate 23. A retaining hole 7 matching the first limiting plate 23 and the second limiting plate 24 is opened in the middle of the end of the installation plate 6 away from the fourth through hole 5. The first limiting plate 23 and the second limiting plate 24 help to limit the collecting cylinder 22; the retaining holes 7 pass through the upper surface and the lower surface of the corresponding position on the installation plate 6, and a PLC control is installed in the middle of the upper surface of the installation plate 6 away from the retaining hole 7. The controller 26, the level meter 25 and the PLC controller 26 are electrically connected, and the mounting plate 6 can fix and limit the PLC controller 26; a matching first through hole 2 is opened on the inner side of the first fixed frame 8 corresponding to the side of the mounting box 1 close to the first fixed frame 8, and the first through hole 2 passes through the inner surface and the outer surface of the corresponding position on the mounting box 1, and a first fixed plate 10 is fixed on the side surface of the first fixed frame 8 away from the mounting box 1, and a first hydraulic cylinder 12 is installed in the middle of the side surface of the first fixed plate 10 away from the first fixed frame 8, the first hydraulic cylinder 12 and the PLC controller 26 are electrically connected, and the first fixed plate 10 can fix and limit the first hydraulic cylinder 12.
[0034] The output rod of the first hydraulic cylinder 12 faces the first fixed plate 10 and penetrates the two side surfaces of the middle of the first fixed plate 10. The output rod of the first hydraulic cylinder 12 is fixedly connected between one end of the output rod close to the first push plate 14 and the middle of the opposite surface of the first push plate 14. The first limit rod 16 is fixed to the middle of the upper end and the middle of the lower end of the surface of the first push plate 14 close to the first hydraulic cylinder 12. The first limit rod 16 is in a horizontal state and penetrates the two side surfaces of the corresponding position on the first fixed plate 10. The first hydraulic cylinder 12 helps to drive the first push plate 14 to move Movement; a matching second through hole 3 is opened on the inner side of the second fixed frame 9 corresponding to the bottom of the installation box 1 near one end of the second fixed frame 9, and the second through hole 3 passes through the inner surface and the outer surface of the corresponding position on the installation box 1, and a second fixed plate 11 is fixed on the side surface of the second fixed frame 9 away from the installation box 1, and a second hydraulic cylinder 13 is installed in the middle of the side surface of the second fixed plate 11 away from the second fixed frame 9, the second hydraulic cylinder 13 is electrically connected to the PLC controller 26, and the second fixed plate 11 can fix and limit the second hydraulic cylinder 13.
[0035] The output rod of the second hydraulic cylinder 13 faces the second fixed plate 11 and passes through the two side surfaces of the middle part of the second fixed plate 11, and the output rod of the second hydraulic cylinder 13 is fixedly connected between one end of the output rod of the second hydraulic cylinder 13 close to the second push plate 15 and the middle part of the opposite surface of the second push plate 15. The second limit rod 17 is fixed to the middle part of the upper end and the middle part of the lower end of the second push plate 15 close to the second hydraulic cylinder 13. The second limit rod 17 is in a horizontal state and passes through the two side surfaces of the corresponding position on the second fixed plate 11, and the second hydraulic cylinder 13 helps to drive the second push plate 15 to move; a connecting plate 20 is fixed to the bottom of the end of the second fixed frame 9 away from the side surface of the installation box 1 away from the first fixed frame 8, and baffles 21 are fixed to the corresponding positions on the installation box 1 on both sides of the upper surface of the connecting plate 20. A matching third through hole 4 is opened between the opposite surfaces of the baffle 21 on the installation box 1 and the corresponding opposite surfaces of the baffle 21. The connecting plate 20 can fix and limit the baffle 21, which is convenient for stable use of the baffle 21.
[0036] The working principle of the utility model is: during use, the lower surfaces of the installation box 1 and the connecting plate 20 are made to correspond to the positions where the outside world needs to install, and the lower surfaces of the installation box 1 and the connecting plate 20 are further installed between the positions where the outside world needs to install, so as to facilitate the stable use of the installation box 1 and the connecting plate 20, and the connecting plate 20 can support and limit the baffle 21, which is helpful for the stable use of the baffle 21, and the installation box 1 can support and limit the installation box 1 and the various components assembled on the installation box 1, so as to facilitate the stable use of the installation box 1 and the various components assembled on the installation box 1.
[0037] The first limiting plate 23, the collecting tube 22 and the second limiting plate 24 are placed into the inner side of the installation box 1 through the retaining hole 7 on the installation plate 6, and the second hydraulic cylinder 13 on the second fixing plate 11 is opened, and the installation box 1 can fix and limit the second fixing frame 9, which is conducive to the stable use of the second fixing frame 9, and the second fixing frame 9 can fix and limit the second fixing plate 11, which is convenient for the stable use of the second fixing plate 11, and the second fixing plate 11 can fix and limit the second hydraulic cylinder 13, which is conducive to the stable use of the second hydraulic cylinder 13. When the second hydraulic cylinder 13 is opened, the output rod of the second hydraulic cylinder 13 can drive the second push plate 15 to move toward the fourth through hole 5. When the second push plate 15 moves, it can drive the second limiting rod 17 to move. The second fixed plate 11 can limit the second push plate 15 through the second limiting rod 17, which is convenient for the stable movement of the second push plate 15.
[0038] When the second push plate 15 moves, it can drive the second push block 19 to move. The second push block 19 and the second push plate 15 will enter the installation box 1 through the second through hole 3 on the installation box 1. When the second push block 19 moves toward the fourth through hole 5, it will push the collecting cylinder 22, the first limiting plate 23 and the second limiting plate 24 to move toward the fourth through hole 5. The installation box 1 can limit the collecting cylinder 22 through the first limiting plate 23 and the second limiting plate 24, which is helpful to stably move the collecting cylinder 22. Further, the collecting cylinder 22, the first limiting plate 23 and the second limiting plate 24 that will be used later are placed in the installation box 1 through the retention hole 7 on the installation plate 6. When in use, the recycled resources can be placed in the collecting cylinder 22 near the fourth through hole 5 through the fourth through hole 5 on the installation box 1 to recycle and collect the recycled resources.
[0039] Open the level meter 25 on the mounting plate 6. The mounting plate 6 can fix and limit the level meter 25, which is convenient for the stable use of the level meter 25. When the level meter 25 is in the open state, the level meter 25 can detect the level of the recycled resources collected in the collecting cylinder 22. When the collecting cylinder 22 is full of recycled resources, the level meter 25 can transmit the detected data information to the PLC controller 26. The PLC controller 26 will open the first hydraulic cylinder 12 on the first fixed plate 10. The mounting box 1 can fix and limit the first fixed frame 8, which is helpful for the stable use of the first fixed frame 8. The first fixed frame 8 can fix and limit the first fixed plate 10, which is convenient for the stable use of the first fixed plate 10. The first fixed plate 10 can fix and limit the first hydraulic cylinder 12, which is helpful for the stable use of the first hydraulic cylinder 12.
[0040] When the first hydraulic cylinder 12 is in the open state, the output rod of the first hydraulic cylinder 12 can drive the first push plate 14 to move toward the collecting cylinder 22. When the first push plate 14 moves, it will drive the first limiting rod 16 to move along the first fixed plate 10. The first fixed plate 10 can limit the first push plate 14 through the first limiting rod 16, so as to facilitate the stable movement of the first push plate 14. When the first push plate 14 moves toward the collecting cylinder 22, it can drive the first push block 18 to move toward the collecting cylinder 22. The first push plate 14 and the first push block 18 will move into the installing box 1 through the first through hole 2 on the installing box 1. The first push block 18 will push the collecting cylinder 22 toward the third through hole 4, so as to move the collecting cylinder 22 filled with recycled resources, the first limiting plate 23 and the second limiting plate 24 through the third through hole 4 to between the baffle 21 on the upper side of the connecting plate 20.
[0041] After the collection cylinder 22 filled with renewable resources is moved to between the baffles 21 on the upper side of the connecting plate 20, the output rod of the second hydraulic cylinder 13 can push the subsequent empty collection cylinder 22, the first limit plate 23 and the second limit plate 24 to the lower side of the level meter 25 through the second push plate 15 and the second push block 19, so as to facilitate the replacement of the collection cylinder 22 filled with renewable resources, which is helpful for the use of the collection cylinder 22.
[0042] During use, it helps to replace the collection tube 22 used to collect renewable resources in time. When the collection tube 22 is full of renewable resources, the collection tube 22 can be replaced in time to facilitate the collection of renewable resources, which helps to use the recycling device.
[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An environmentally friendly renewable resource intelligent recycling device, comprising an installation box (1), characterized in that: A plurality of collecting tubes (22) are placed in the installation box (1), a first fixed frame (8) is installed at one end of the bottom of one side of the installation box (1), a first push plate (14) is installed in the first fixed frame (8) for sliding in the horizontal direction, a first push block (18) is fixed at the top and bottom of the surface of the first push plate (14) close to the collecting tube (22), a fourth through hole (5) is opened on the upper side of the installation box (1) close to the first fixed frame (8), a second fixed frame (9) is installed at the bottom of the installation box (1) away from the fourth through hole (5), a second push plate (15) is installed in the second fixed frame (9) for sliding in the horizontal direction, a second push block (19) is fixed at the top and bottom of the surface of the second push plate (15) close to the collecting tube (22), a mounting plate (6) is fixed on the upper surface of the installation box (1), and a level meter (25) is installed at the middle of the lower surface of the mounting plate (6) close to the end of the fourth through hole (5).
2. The environmentally friendly renewable resource intelligent recycling device according to claim 1 is characterized in that: The fourth through hole (5) penetrates the inner surface and the outer surface of the corresponding position on the installation box (1); the level meter (25) penetrates the upper surface and the lower surface of the corresponding position on the installation plate (6); the lower surface of the collecting cylinder (22) is fixed with a second limit plate (24); the outer side of the upper end of the outer ring surface of the collecting cylinder (22) is fixed with a first limit plate (23); and a retention hole (7) matching the first limit plate (23) and the second limit plate (24) is opened in the middle of the end of the installation plate (6) away from the fourth through hole (5).
3. The environmentally friendly renewable resource intelligent recycling device according to claim 2 is characterized in that: The retention holes (7) penetrate the upper surface and the lower surface at corresponding positions on the mounting plate (6); a PLC controller (26) is installed in the middle of the upper surface of the mounting plate (6) away from the retention holes (7); and the level meter (25) and the PLC controller (26) are electrically connected.
4. The environmentally friendly renewable resource intelligent recycling device according to claim 3 is characterized in that: A matching first through hole (2) is provided on the inner side of the first fixed frame (8) corresponding to the side of the installation box (1) close to the first fixed frame (8); the first through hole (2) penetrates the inner surface and the outer surface of the corresponding position on the installation box (1); a first fixed plate (10) is fixed on the surface of the side of the first fixed frame (8) away from the installation box (1); a first hydraulic cylinder (12) is installed in the middle of the surface of the side of the first fixed plate (10) away from the first fixed frame (8); the first hydraulic cylinder (12) is electrically connected to the PLC controller (26).
5. The environmentally friendly renewable resource intelligent recycling device according to claim 4 is characterized in that: The output rod of the first hydraulic cylinder (12) faces the first fixed plate (10) and penetrates the two side surfaces of the middle part of the first fixed plate (10); one end of the output rod of the first hydraulic cylinder (12) close to the first push plate (14) is fixedly connected to the middle part of the opposite surface of the first push plate (14); the first limiting rod (16) is fixed to the middle part of the upper end and the middle part of the lower end of the side surface of the first push plate (14) close to the first hydraulic cylinder (12); the first limiting rod (16) is in a horizontal state and penetrates the two side surfaces of the corresponding position on the first fixed plate (10).
6. The environmentally friendly renewable resource intelligent recycling device according to claim 5 is characterized by: A matching second through hole (3) is provided at the bottom of the installation box (1) close to one end of the second fixed frame (9) and corresponds to the inner side of the second fixed frame (9); the second through hole (3) penetrates the inner surface and the outer surface at the corresponding position on the installation box (1); a second fixing plate (11) is fixed to the side surface of the second fixed frame (9) away from the installation box (1); a second hydraulic cylinder (13) is installed in the middle of the side surface of the second fixing plate (11) away from the second fixed frame (9); the second hydraulic cylinder (13) is electrically connected to the PLC controller (26).
7. The environmentally friendly renewable resource intelligent recycling device according to claim 6 is characterized by: The output rod of the second hydraulic cylinder (13) faces the second fixed plate (11) and penetrates the two side surfaces of the middle part of the second fixed plate (11); one end of the output rod of the second hydraulic cylinder (13) close to the second push plate (15) is fixedly connected to the middle part of the opposite surface of the second push plate (15); a second limiting rod (17) is fixed to the middle part of the upper end and the middle part of the lower end of the side surface of the second push plate (15) close to the second hydraulic cylinder (13); the second limiting rod (17) is in a horizontal state and penetrates the two side surfaces of the corresponding position on the second fixed plate (11).
8. The environmentally friendly renewable resource intelligent recycling device according to claim 7 is characterized by: A connecting plate (20) is fixed to the bottom of one end of the installation box (1) away from the first fixing frame (8) and away from the second fixing frame (9), and baffles (21) are fixed to both sides of the upper surface of the connecting plate (20) and corresponding positions on the installation box (1), and a matching third through hole (4) is provided between opposite surfaces of the baffle (21) and opposite surfaces of the baffle (21) on the installation box (1).