Wall surface spraying maintenance mechanism

By designing a wall spray maintenance mechanism that includes a movable car body, a lifting component and an angle adjustment component, the problem of requiring climbing for high-altitude spray maintenance is solved, flexible spray operation and a wide range of applications are achieved, and the efficiency is improved Construction safety and efficiency.

CN222376061UActive Publication Date: 2025-01-21CHINA CONSTR EIGHT ENG DIV CORP LTD

Patent Information

Application Number
CN202420758037.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-12
Publication Date
2025-01-21
Estimated Expiration
2034-04-12

AI Technical Summary

Technical Problem

In the prior art, the components need to be artificially climbed and sprayed at high places, and the spray area and scope of application are limited.

Method used

A wall spray maintenance mechanism is designed, including a mobile car body, a water tank, a water pump, an outlet pipe, a main pipe, a sprinkler head, a lifting component and an angle adjustment component. The lifting component and the angle adjustment component realize the flexible lifting and angle adjustment of the sprinkler head. Adapt to spray needs at different heights and angles.

Benefits of technology

It solves the problem of traditional wall sprinkling maintenance requiring workers to climb high, improves the flexibility and scope of application of spray maintenance, reduces construction safety hazards, and improves spray maintenance efficiency.

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Patent Text Reader

Abstract

The utility model discloses a wall spraying maintenance mechanism which comprises a movable vehicle body, a water tank, a water pump, a water outlet pipe, a main pipe, a spray head, a lifting assembly and an angle adjusting assembly. A water inlet pipe is arranged at the top of the water tank; one end of the water outlet pipe is connected with a water outlet of the water pump, and the other end of the water outlet pipe extends out of the water tank and is communicated with the main pipe; the plurality of nozzles are uniformly distributed on the main pipe and face a component needing to be subjected to spraying maintenance; the lifting assembly is arranged on the movable vehicle body, and the main pipe is rotationally arranged on the lifting assembly through the angle adjusting assembly. The utility model relates to the technical field of building spraying maintenance, and can solve the problems that in the prior art, a worker needs to climb a high position of a component for spraying maintenance, and the spraying area and the application range are limited.
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Description

Technical Field

[0001] The utility model relates to the technical field of building spray maintenance, in particular to a wall spray maintenance mechanism. Background Art

[0002] In construction projects, it is often necessary to water and maintain components after concrete pouring and plastering. Traditional wall watering and maintenance is mostly done by manual spraying. If the exterior wall is high, it is necessary to use a ladder to spray water, which is inconvenient to operate and has certain safety hazards.

[0003] Chinese utility model patent CN214834964U discloses an automatic maintenance facility for concrete floor slabs of building construction projects, including a sprinkler head, a water pipe, a humidity sensor, a temperature sensor, a control box, and a switch control part. The sprinkler head is used to be placed on the concrete floor slab to achieve maintenance of the concrete floor slab by spraying water mist, a plurality of sprinkler heads are installed on the water pipe and connected to the water source, the switch control part is arranged on the water pipe, the humidity sensor is used to be placed on the concrete floor slab to sense the humidity of the concrete floor slab, the temperature sensor is arranged in the control box, the switch control part is electrically connected to the control box, the humidity sensor is electrically connected to the control box, and the temperature sensor is electrically connected to the control box. The maintenance facility needs to be installed on the water pipe, and the installation position is limited, resulting in the area that can be sprayed and maintained is also limited, and it is not suitable for spray maintenance at high places, exterior walls, etc. Therefore, it is necessary to provide a wall spray maintenance mechanism that can solve the problems in the prior art that components at high places need to be manually climbed up for spray maintenance, and the spray area and scope of application are limited. Summary of the invention

[0004] The utility model aims to provide a wall spray maintenance mechanism, which can solve the problems in the prior art that components at high places need to be manually climbed for spray maintenance, and the spray area and application range are limited.

[0005] The utility model is achieved in this way:

[0006] A wall spray maintenance mechanism comprises a mobile body, a water tank, a water pump, a water outlet pipe, a main pipe, a nozzle, a lifting assembly and an angle adjustment assembly; the water tank is installed on the mobile body, and a water inlet pipe is provided on the top of the water tank; the water pump is installed in the water tank, one end of the water outlet pipe is connected to the water outlet of the water pump, and the other end of the water outlet pipe extends to the outside of the water tank and is connected to the main pipe; a plurality of nozzles are evenly distributed on the main pipe and are arranged facing the components that need to be sprayed and maintained; the lifting assembly is arranged on the mobile body, and the main pipe is rotatably arranged on the lifting assembly through the angle adjustment assembly.

[0007] The mobile body includes moving wheels, a base plate, an arc-shaped rod and a handle; a plurality of moving wheels are arranged at intervals on the bottom surface of the base plate, and a water tank, a lifting assembly and an angle adjustment assembly are all arranged on the top surface of the base plate; one end of the arc-shaped rod is fixedly connected to a side surface of the base plate, a pair of arc-shaped rods are arranged parallel to each other, and a handle is connected between the other ends of the pair of arc-shaped rods.

[0008] The lifting assembly includes a threaded rod, a limiting mechanism, a forward and reverse motor, a first gear, a second gear and a sliding block; the forward and reverse motor is installed on the top surface of the base plate, and the first gear is coaxially fixed to the output shaft of the forward and reverse motor; the second gear is coaxially fixed to the threaded rod, the first gear is meshingly connected to the second gear, and the lower end of the threaded rod is rotatably connected to the top surface of the base plate; the sliding block is vertically slidably arranged on the threaded rod through the limiting mechanism and is rotatably sleeved with the thread of the threaded rod.

[0009] The limiting mechanism includes a horizontal plate and a vertical plate; the vertical plate is a hollow structure with an opening at the top, the threaded rod is arranged in the vertical plate, the horizontal plate cover is arranged at the top opening of the vertical plate, and the upper end of the threaded rod is rotatably connected to the bottom surface of the horizontal plate; the vertical plate is vertically fixed on the top surface of the bottom plate, and a vertical slide groove is formed on the vertical plate, and the sliding block can be slidably embedded in the slide groove, and the end of the sliding block passes through the vertical plate through the slide groove and is connected to the angle adjustment component.

[0010] The angle adjustment assembly includes a positioning block, a positioning mechanism, a pin and a connecting rod; one end of the pin is fixedly connected to the end of the sliding block, the other end of the pin extends to the outside of the vertical plate, and the positioning block is fixed to the other end of the pin; one end of the connecting rod is rotatably connected to the pin, the other end of the connecting rod is fixedly connected to the main pipe, and the connecting rod is connected to the positioning block through the positioning mechanism.

[0011] The positioning mechanism includes a positioning rod, a second rotating shaft and a rubber pad; the second rotating shaft is fixedly arranged in the middle of the positioning rod, and a screw hole matching the second rotating shaft is formed in the middle of the connecting rod, so that the positioning rod thread is rotated to pass through the middle of the connecting rod; the rubber pad is arranged on one end of the positioning rod close to the positioning block, so that one end of the positioning rod can abut against the positioning block through the rubber pad.

[0012] A cover body is arranged on the main pipe, and the cover body surrounds the outer sides of a plurality of nozzles in a circumferential direction. The cover body is a trumpet-shaped structure with a large opening at one end and a small opening at the other end.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model can flexibly push the entire mechanism to the wall or other components that need spraying by arranging structures such as a water pump, a vertical plate, a threaded rod, a first gear, an electric sprinkler head and a forward and reverse motor, start the water pump and the forward and reverse motor, the forward and reverse motor drives the first gear to rotate, the first gear drives the second gear to rotate, the second gear drives the threaded rod to rotate, the threaded rod drives the sliding block to move up and down, and then drives the sprinkler head to rise or lower, so as to facilitate spraying maintenance of components at different heights, which is convenient and quick, and solves the problem that traditional wall high-place watering maintenance requires workers to use ladders, which is very inconvenient, and has high flexibility in use and a wide range of applications.

[0015] 2. The utility model provides structures such as a pin shaft, a positioning block, a connecting rod and a rubber pad. When the spray angle needs to be adjusted, the connecting rod is rotated to form a specified angle with the pin shaft, and the positioning screw is tightened. Under the action of the rubber pad, the connecting rod and the positioning block are relatively fixed, so that the spray angle adjustment of the electric sprinkler head is more convenient and quick, and the spray range can be expanded to a certain extent, thereby improving the spray maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the main structural diagram of the wall spray maintenance mechanism of the utility model;

[0017] Figure 2 It is a three-dimensional diagram of the mobile vehicle body in the wall spray maintenance mechanism of the utility model;

[0018] Figure 3 It is a cross-sectional view of the main pipe, cover body and nozzle in the wall spray maintenance mechanism of the utility model;

[0019] Figure 4 It is a side sectional view of a positioning mechanism in the wall spray maintenance mechanism of the utility model.

[0020] In the figure, 1. moving wheel; 2. bottom plate; 3. arc rod; 4. handle; 5. horizontal plate; 6. first rotating shaft; 7. vertical plate; 8. slide groove; 9. threaded rod; 10. water inlet pipe; 11. water tank; 12. water pump; 13. water outlet pipe; 14. main pipe; 15. cover body; 16. nozzle; 17. positioning block; 18. positioning mechanism; 181. positioning rod; 182. second rotating shaft; 183. rubber pad; 19. forward and reverse motor; 20. mounting block; 21. first gear; 22. second gear; 23. sliding block; 24. pin shaft; 25. connecting rod. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Please see attached Figure 1 and attached Figure 3A wall spray maintenance mechanism comprises a mobile body, a water tank 11, a water pump 12, a water outlet pipe 13, a main pipe 14, a nozzle 16, a lifting assembly and an angle adjustment assembly; the water tank 11 is installed on the mobile body, and a water inlet pipe 10 is provided on the top of the water tank 11; the water pump 12 is installed in the water tank 11, one end of the water outlet pipe 13 is connected to the water outlet of the water pump 12, and the other end of the water outlet pipe 13 extends to the outside of the water tank 11 and is connected to the main pipe 14; a plurality of nozzles 16 are evenly distributed on the main pipe 14 and are arranged facing the components to be sprayed and maintained; the lifting assembly is arranged on the mobile body, and the main pipe 14 is rotatably arranged on the lifting assembly through the angle adjustment assembly.

[0023] The mobile body allows the entire mechanism to be flexibly moved at the construction site. The capacity of the water tank 11 can be adaptively selected according to the spraying needs. The water in the water tank 11 is pumped out by the water pump 12 and sprayed out through the nozzle 16, which is convenient for spraying and curing concrete components, plastered surfaces, etc. The use position is not limited, and components in various areas can be sprayed and cured.

[0024] The lifting assembly is used to adjust the height of the nozzle 16, so as to spray and maintain components at different heights. The objects of use are not limited, and construction workers do not need to work at heights, which reduces construction safety hazards. The angle adjustment assembly is used to adjust the spray angle of the nozzle 16 up and down, which can expand the spray range, make the spray maintenance operation more efficient, and achieve better maintenance results.

[0025] Preferably, the nozzle 16 can adopt the atomizing nozzle, electric nozzle, etc. of the prior art, and the type and number of the nozzle 16 can be adaptively selected according to the actual spraying demand. The water outlet pipe 13 can adopt a hose, and the length of the water outlet pipe 13 can be adaptively selected according to the lifting and rotation range of the main pipe 14 to ensure smooth water discharge.

[0026] Please see attached Figure 1 and attached Figure 2 The mobile body includes a moving wheel 1, a bottom plate 2, an arc rod 3 and a handle 4; a plurality of moving wheels 1 are arranged at intervals on the bottom surface of the bottom plate 2, and a water tank 11, a lifting assembly and an angle adjustment assembly are all arranged on the top surface of the bottom plate 2; one end of the arc rod 3 is fixedly connected to a side surface of the bottom plate 2, a pair of arc rods 3 are arranged parallel to each other, and a handle 4 is connected between the other ends of the pair of arc rods 3.

[0027] Preferably, the bottom plate 2 can be made of a rectangular flat plate member such as a thick wooden board or a thick steel plate, and the size of the flat plate can be adaptively selected according to the actual installation and loading requirements. The moving wheel 1 can be a universal wheel of the prior art, and four universal wheels are respectively installed at the four corners of the bottom plate 2, so that the movement of the entire mechanism is more convenient, flexible and stable. The arc rod 3 and the handle 4 extend to the upper rear of the bottom plate 2, which is convenient for holding and controlling the moving direction and speed of the entire mechanism.

[0028] Please see attached Figure 1 The lifting assembly includes a threaded rod 9, a limiting mechanism, a forward and reverse motor 19, a first gear 21, a second gear 22 and a sliding block 23; the forward and reverse motor 19 is installed on the top surface of the base plate 2 through the mounting block 20, and the first gear 21 is coaxially fixed to the output shaft of the forward and reverse motor 19; the second gear 22 is coaxially fixed to the threaded rod 9, the first gear 21 is meshed and transmission-connected with the second gear 22, and the lower end of the threaded rod 9 is rotatably connected to the top surface of the base plate 2 through the first rotating shaft 6; the sliding block 23 is vertically slidably arranged on the threaded rod 9 through the limiting mechanism and is threadedly rotatably sleeved with the threaded rod 9.

[0029] Preferably, the forward and reverse motor 19 can adopt a bidirectional drive motor with forward and reverse directions in the prior art, and the motor specifications can be adaptively selected according to actual use requirements. The first gear 21 and the second gear 22 can adopt matching bevel gears to facilitate the transmission of the threaded rod 9 by the forward and reverse motor 19.

[0030] The output shaft of the forward and reverse motor 19 drives the first gear 21 to rotate synchronously, the first gear 21 meshes with the second gear 22, and the second gear 22 drives the vertically arranged threaded rod 9 to rotate synchronously, and the threaded rod 9 rotates relative to the bottom plate 2 through the first rotating shaft 6. Under the transmission of the thread, the rotation of the threaded rod 9 is converted into the linear motion of the sliding block 23 along the axial direction of the threaded rod 9, so that the lifting and lowering functions of the angle adjustment component, the main pipe 14 and the nozzle 16 are realized through the bidirectional rotation of the forward and reverse motor 19 and the linear motion of the sliding block 23.

[0031] Please see attached Figure 1 The limiting mechanism includes a horizontal plate 5 and a vertical plate 7; the vertical plate 7 is a hollow structure with an opening at the top, the threaded rod 9 is arranged in the vertical plate 7, the horizontal plate 5 cover is arranged at the top opening of the vertical plate 7, and the upper end of the threaded rod 9 is rotatably connected to the bottom surface of the horizontal plate 5 through the first rotating shaft 6; the vertical plate 7 is vertically fixed on the top surface of the bottom plate 2, and a vertical slide groove 8 is formed on the vertical plate 7, and the sliding block 23 can be slidably embedded in the slide groove 8, and the end of the sliding block 23 passes through the vertical plate 7 through the slide groove 8 and is connected to the angle adjustment component.

[0032] Preferably, the vertical plate 7 can be made of square steel tubes, and the specifications of the square steel tubes can be selected according to the specifications of the threaded rods 9. The lower end of the vertical plate 7 is fixedly mounted on the bottom plate 2, and the horizontal plate 5 is closed at the upper end of the vertical plate 7 to protect the threaded rods 9. The threaded rods 9 are stably arranged vertically and rotated relative to the bottom plate 2 and the horizontal plate 5 under the action of the second rotating shafts 6 at both ends.

[0033] Please see attached Figure 1The angle adjustment assembly includes a positioning block 17, a positioning mechanism 18, a pin 24 and a connecting rod 25; one end of the pin 24 is fixedly connected to the end of the sliding block 23, and the other end of the pin 24 extends to the outside of the vertical plate 7. The positioning block 17 is fixed to the other end of the pin 24 and is located on the outside of the vertical plate 7; one end of the connecting rod 25 is rotatably connected to the pin 24, and the other end of the connecting rod 25 is fixedly connected to the main pipe 14, and the connecting rod 25 is connected to the positioning block 17 through the positioning mechanism 18.

[0034] The connecting rod 25 can rotate relative to the pin 24, thereby driving the main pipe 14 and the nozzle 16 to rotate synchronously, which is convenient for adjusting the spraying angle of the nozzle 16, and can expand the spraying range to a certain extent to meet different spraying maintenance requirements. After the nozzle 16 rotates into place, the connecting rod 25 can be positioned and fixed on the positioning block 17 through the positioning mechanism 18, and the positioning block 17 is fixed to the outer end of the pin 24, so that the connecting rod 25 and the pin 24 are relatively fixed to prevent the nozzle 16 from accidentally rotating during use.

[0035] Please see attached Figure 4 The positioning mechanism 18 includes a positioning rod 181, a second rotating shaft 182 and a rubber pad 183; the second rotating shaft 182 is fixedly arranged in the middle of the positioning rod 181, and a screw hole matching the second rotating shaft 182 is formed in the middle of the connecting rod 25, so that the positioning rod 181 can be threaded and penetrate the middle of the connecting rod 25; the rubber pad 183 is arranged on one end of the positioning rod 181 close to the positioning block 17, so that one end of the positioning rod 181 can be abutted against the positioning block 17 through the rubber pad 183.

[0036] The second rotating shaft 182 can be annular and fixed to the middle of the positioning rod 181. The outer ring of the second rotating shaft 182 is provided with a thread, so that the second rotating shaft 182 can rotate in the screw hole through the thread. By screwing the second rotating shaft 182 in or out, one end of the positioning rod 181 is pressed against the positioning block 17 through the rubber pad 183, and the connecting rod 25 and the pin 24 are locked by the extrusion friction force generated by the rubber pad 183 and the surface of the positioning block 17. When the second rotating shaft 182 is screwed out to make the rubber pad 183 detach from the positioning block 17, the connecting rod 25 can be rotated to adjust the spray angle of the nozzle 16.

[0037] Preferably, the size of the positioning block 17 can be adaptively selected according to the rotation range of the connecting rod 25 to ensure that the positioning rod 181 in the middle of the connecting rod 25 can always abut against the surface of the positioning block 17 within its rotation range. The rubber pad 183 can be made of a material with certain deformation properties such as rubber, and can ensure the locking of the connecting rod 25 and the pin 24 through the friction force generated by deformation and extrusion.

[0038] Please see attached Figure 1 and attached Figure 3The main pipe 14 is provided with a cover body 15, which circumferentially surrounds the outer sides of a plurality of nozzles 16. The cover body 15 is a trumpet-shaped structure with a large opening at one end (the end close to the sprayed component) and a small opening at the other end (the end away from the sprayed component).

[0039] Preferably, the cover body 15 can be made of transparent hard plastic or other materials to prevent water mist from splashing around during spraying, which is beneficial to improving the spraying effect, reducing water splashing waste, and is also beneficial to environmental protection at the construction site and reducing slipperiness.

[0040] Please see attached Figure 1 To Attachment Figure 4 , the working process and working principle of the utility model are:

[0041] When in use, the construction worker holds the handle 4 and pushes the entire mechanism to the side of the wall or other components that need to be sprayed through the moving wheel 1. The water pump 12 and the forward and reverse motor 19 are started, and the forward and reverse motor 19 drives the first gear 21 to rotate synchronously, and the first gear 21 meshes and drives the second gear 22 to rotate, and the second gear 22 drives the threaded rod 9 to rotate synchronously, and the threaded rod 9 drives the sliding block 23 to move up and down along the slide 8, thereby driving the angle adjustment component, the main pipe 14 and a plurality of nozzles 16 to rise and fall synchronously. The wall is sprayed and maintained at different heights by a plurality of nozzles 16, and the operation is convenient and quick.

[0042] When the spraying angle needs to be adjusted, the connecting rod 25 is rotated around the pin 24 to a specified angle, the positioning rod 181 is rotated, and the second rotating shaft 182 cooperates with the threaded hole to push the rubber pad 183 toward the positioning block 17 and press against the surface of the positioning block 17. Under the friction between the rubber pad 183 and the positioning block 17, the connecting rod 25 and the positioning block 17 are relatively fixed, so that the nozzle 16 maintains the specified spraying angle, which is convenient for adjustment.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wall spray maintenance mechanism, characterized by: The invention comprises a mobile body, a water tank (11), a water pump (12), a water outlet pipe (13), a main pipe (14), a nozzle (16), a lifting assembly and an angle adjustment assembly; the water tank (11) is mounted on the mobile body, and a water inlet pipe (10) is arranged on the top of the water tank (11); the water pump (12) is mounted in the water tank (11), one end of the water outlet pipe (13) is connected to the water outlet of the water pump (12), and the other end of the water outlet pipe (13) extends to the outside of the water tank (11) and is connected to the main pipe (14); a plurality of nozzles (16) are evenly distributed on the main pipe (14) and are arranged facing the components to be sprayed and maintained; the lifting assembly is arranged on the mobile body, and the main pipe (14) is rotatably arranged on the lifting assembly through the angle adjustment assembly.

2. The wall spray maintenance mechanism according to claim 1 is characterized in that: The mobile vehicle body comprises a moving wheel (1), a bottom plate (2), an arc-shaped rod (3) and a handle (4); a plurality of moving wheels (1) are arranged at intervals on the bottom surface of the bottom plate (2); a water tank (11), a lifting assembly and an angle adjustment assembly are all arranged on the top surface of the bottom plate (2); one end of the arc-shaped rod (3) is fixedly connected to a side surface of the bottom plate (2); a pair of arc-shaped rods (3) are arranged parallel to each other; and the handle (4) is connected between the other ends of the pair of arc-shaped rods (3).

3. The wall spray maintenance mechanism according to claim 2 is characterized in that: The lifting assembly comprises a threaded rod (9), a limiting mechanism, a forward and reverse motor (19), a first gear (21), a second gear (22) and a sliding block (23); the forward and reverse motor (19) is mounted on the top surface of the base plate (2), the first gear (21) is coaxially fixedly connected to the output shaft of the forward and reverse motor (19); the second gear (22) is coaxially fixedly connected to the threaded rod (9), the first gear (21) and the second gear (22) are meshed and transmission-connected, and the lower end of the threaded rod (9) is rotatably connected to the top surface of the base plate (2); the sliding block (23) is vertically slidably arranged on the threaded rod (9) through the limiting mechanism and is threadably sleeved with the threaded rod (9).

4. The wall spray maintenance mechanism according to claim 3 is characterized in that: The limiting mechanism comprises a horizontal plate (5) and a vertical plate (7); the vertical plate (7) is a hollow structure with an opening at the top, a threaded rod (9) is arranged in the vertical plate (7), a cover of the horizontal plate (5) is arranged at the top opening of the vertical plate (7), and the upper end of the threaded rod (9) is rotatably connected to the bottom surface of the horizontal plate (5); the vertical plate (7) is vertically fixed on the top surface of the bottom plate (2), a vertical slide groove (8) is formed on the vertical plate (7), a sliding block (23) is slidably embedded in the slide groove (8), and the end of the sliding block (23) passes through the vertical plate (7) through the slide groove (8) and is connected to the angle adjustment component.

5. The wall spray maintenance mechanism according to claim 4 is characterized in that: The angle adjustment assembly comprises a positioning block (17), a positioning mechanism (18), a pin shaft (24) and a connecting rod (25); one end of the pin shaft (24) is fixedly connected to the end of the sliding block (23), the other end of the pin shaft (24) extends to the outside of the vertical plate (7), and the positioning block (17) is fixed to the other end of the pin shaft (24); one end of the connecting rod (25) is rotatably connected to the pin shaft (24), the other end of the connecting rod (25) is fixedly connected to the main pipe (14), and the connecting rod (25) is connected to the positioning block (17) through the positioning mechanism (18).

6. The wall spray maintenance mechanism according to claim 5 is characterized in that: The positioning mechanism (18) comprises a positioning rod (181), a second rotating shaft (182) and a rubber pad (183); the second rotating shaft (182) is fixedly arranged at the middle part of the positioning rod (181); a screw hole matching the second rotating shaft (182) is formed at the middle part of the connecting rod (25), so that the positioning rod (181) can be screwed through the middle part of the connecting rod (25); the rubber pad (183) is arranged at one end of the positioning rod (181) close to the positioning block (17), so that one end of the positioning rod (181) can be abutted against the positioning block (17) through the rubber pad (183).

7. The wall spray maintenance mechanism according to claim 1 is characterized in that: The main pipe (14) is provided with a cover body (15), which surrounds the outer sides of a plurality of nozzles (16) in a circumferential direction. The cover body (15) is a trumpet-shaped structure with a large opening at one end and a small opening at the other end.

Citation Information

Patent Citations

  • Automatic maintenance facility for house building project floor concrete

    CN214834964U

Cited By

  • Concrete curing device for main body structure construction

    CN122504341A