A grouting device for repairing ancient building walls

Abstract

This utility model relates to the field of grouting devices, and discloses a grouting device for the repair of ancient building walls. It includes a device housing, with an elastic hose fixedly connected to the outer wall of the housing. An inner shell of the grouting device is threadedly connected to the end of the elastic hose. The outer wall of the inner shell is fixedly connected to the outer housing, and a nut sleeve is threadedly connected to the top of the inner shell. A grouting nozzle is threaded onto the inner wall of the inner shell. In this utility model, by setting a knob, threaded sleeve, and bolt, the flow rate of cement mortar can be flexibly adjusted according to the different sizes of gaps in the ancient building wall, avoiding the problems of excessive flow causing mortar overflow or insufficient flow failing to fill the gaps. Combined with the handheld structure formed by the outer and inner shells, the operator can precisely control the grouting position. It is especially suitable for the localized fine repair of ancient building walls, eliminating the need for large-area operations, reducing interference with the original structure of the ancient building, and easily completing the grouting operation.

Description

Technical Field

[0001] This utility model relates to the field of grouting devices, and in particular to a grouting device for the repair of ancient building walls. Background Technology

[0002] Over the long course of time, ancient buildings are susceptible to cracks and hollow areas in their walls due to changes in the natural environment and fluctuations in temperature and humidity. If these problems persist, they will gradually affect the structural stability of the building and may also damage the original historical appearance of the walls. Grouting repair, as an effective means of repairing wall cracks and hollow areas, can restore the integrity of the wall structure by injecting mortar into the wall gaps to fill the internal voids. It is widely used in the protection and restoration of ancient building walls and is one of the key technologies to ensure the long-term preservation of ancient buildings.

[0003] When using existing grouting devices for ancient building wall repair, the repair materials such as cement mortar are first mixed according to the ratio and injected into the storage component through the equipment's inlet. Then, the connection parts of the equipment are checked to ensure that there is no looseness or leakage. The equipment is then started, pushing the mortar in the storage component to the grouting nozzle. The nozzle is aimed at the grouting port of the wall crack or hollow area, and the mortar output is controlled by the control switch to inject the mortar into the wall until the crack or hollow area is filled with mortar. After the grouting of this part is completed, the operation is repeated at the next location to be repaired.

[0004] Existing grouting devices for ancient building wall repair suffer from several drawbacks. First, the equipment lacks an effective grout flow adjustment structure. During the grouting process, the grout output cannot be flexibly adjusted according to the size of the wall cracks and the degree of hollowness. This results in grout overflow and waste when dealing with minor cracks, while insufficient flow makes it difficult to fill larger gaps, affecting the repair effect. Second, most devices are too large and heavy. When operated by a single person, they must simultaneously handle equipment handling and grouting operation, which not only consumes a lot of physical strength but also makes it difficult to accurately control the grouting position and angle, resulting in high operational difficulty. Therefore, a new grouting device for ancient building wall repair is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a grouting device for the repair of ancient building walls, which aims to improve the problems of existing technologies that cannot flexibly adjust the grouting flow rate and are difficult for a single person to operate due to their large size and heavy weight.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a grouting device for repairing ancient building walls, comprising an outer shell, an elastic hose fixedly connected to the outer wall of the outer shell, an inner shell of the grouting device threadedly connected to the end of the elastic hose, an outer shell of the grouting device fixedly connected to the outer wall of the inner shell, a nut sleeve threadedly connected to the top of the inner shell, a grouting nozzle threadedly connected to the inner wall of the inner shell, a threaded cap threadedly connected to the outer wall of the grouting nozzle, a knob inserted into the outer wall of the threaded cap, a threaded rod slidably connected to the inner wall of the inner shell, a trigger hinged to the outer walls of the inner shell and the outer shell, and a bolt threadedly connected to the outer wall of the threaded rod.

[0007] As a further description of the above technical solution:

[0008] A carrying strap is fixedly connected to the outer wall of the equipment housing. A storage box is opened on the inner wall of the equipment housing. A partition is fixedly connected to the inner wall of the equipment housing. A feed inlet is opened on the top outer wall of the equipment housing. A box cover is threadedly connected to the top outer wall of the equipment housing. A motor is fixedly connected to the inner wall of the equipment housing. An air pump is fixedly connected to the output end of the motor. An air inlet pipe is fixedly connected to the input end of the air pump. An air outlet pipe is fixedly connected to the output end of the air pump. A power supply is fixedly connected to the inner wall of the equipment housing.

[0009] As a further description of the above technical solution:

[0010] The outer wall of the device housing near the shoulder strap is provided with elastic cotton.

[0011] As a further description of the above technical solution:

[0012] The air inlet pipe is fixedly connected to the inner wall of the equipment housing, and the air outlet pipe is fixedly connected to the inner wall of the partition.

[0013] As a further description of the above technical solution:

[0014] The outer walls of the grouting device housing and the trigger are provided with anti-slip textures.

[0015] As a further description of the above technical solution:

[0016] The bolt is threaded at the end furthest from the grouting nozzle.

[0017] As a further description of the above technical solution:

[0018] A spring is provided on the outer wall of the threaded rod, and one end of the spring is fixedly connected to the threaded rod. The threaded rod is elastically connected to the outer wall of the trigger through the spring.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the grouting nozzle is provided with a rubber ring.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by setting a knob, threaded sleeve and bolt, the flow rate of cement mortar can be flexibly adjusted according to the different gap sizes of the ancient building wall, avoiding the problem of mortar overflow due to excessive flow or insufficient flow to fill the gap. Combined with the handheld structure formed by the outer shell and inner shell of the grouting device, the operator can accurately control the grouting position. It is especially suitable for the fine repair of local parts of the ancient building wall, without the need for large-area operation, reducing interference with the original structure of the ancient building, and easily completing the grouting operation.

[0023] 2. In this utility model, by designing a carrying strap, the grouting device for repairing ancient building walls can be carried on a back, greatly reducing the burden on operators and significantly improving portability. For narrow passages, low spaces, and complex interior layout areas commonly found in ancient buildings, large grouting devices are difficult to enter due to size limitations. However, this device, relying on its lightweight carrying design and compact size, can flexibly move through these areas, ensuring that every wall that needs repair can be effectively grouted, thus solving the application limitations of large grouting devices in ancient building repair scenarios. Attached Figure Description

[0024] Figure 1 This is a side view of the overall structure of a grouting device for repairing ancient building walls proposed in this utility model;

[0025] Figure 2 This is a side view of the cross-sectional profile of the casing of a grouting device for repairing ancient building walls proposed in this utility model;

[0026] Figure 3 This is an enlarged structural diagram of the grouting nozzle of a grouting device for repairing ancient building walls proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the exploded structure of the outer shell of a grouting device for repairing ancient building walls, as proposed in this utility model.

[0028] Legend:

[0029] 1. Equipment casing; 2. Shoulder strap; 3. Motor; 4. Box cover; 5. Partition; 6. Air pump; 7. Air inlet pipe; 8. Elastic cotton; 9. Elastic hose; 10. Air outlet pipe; 11. Power supply; 12. Storage bin; 13. Feed inlet; 14. Grouting device casing; 15. Grouting device inner casing; 16. Trigger; 17. Grouting nozzle; 18. Threaded cap; 19. Knob; 20. Nut sleeve; 21. Threaded rod; 22. Bolt; 23. Rubber ring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figures 3-4 This utility model provides an embodiment of a grouting device for repairing ancient building walls, comprising an outer shell 1 to which an elastic hose 9 is fixedly connected. The elastic hose 9 can deliver cement grout and can be flexibly bent to adapt to different grouting angles. The end of the elastic hose 9 is threadedly connected to an inner shell 15 of the grouting device. An outer shell 14 of the grouting device is fixedly connected to the outer wall of the inner shell 15. The outer shell 14 protects the inner shell 15 and facilitates gripping by the operator. The outer shell 14 and the lever... The outer wall of the machine 16 is provided with anti-slip texture, which increases the friction between the hand and the parts to prevent slipping when holding. The trigger 16 is used to control the grout output. Pressing it starts grouting and releasing it stops it. The top of the inner shell 15 of the grout injector is threaded with a nut sleeve 20, which can fix the top part of the inner shell 15 of the grout injector to prevent loosening. The inner wall of the inner shell 15 of the grout injector has a grouting nozzle 17, which can accurately inject grout into wall cracks or hollow areas.

[0032] Reference Figure 1 , Figures 3-4 The outer wall of the grouting nozzle 17 is provided with a rubber ring 23, which enhances the sealing between the nozzle and the wall to prevent grout leakage. A threaded cap 18 is threadedly connected to the outer wall of the grouting nozzle 17. The threaded cap 18 can fix the grouting nozzle 17 and adjust the flow rate with a knob 19. A knob 19 is inserted into the outer wall of the threaded cap 18. The knob 19 can be rotated to adjust the flow rate of grout through the nozzle. A threaded rod 21 is slidably connected to the inner wall of the grouting device inner shell 15. The threaded rod 21 can be used with a trigger 16 to control the pushing and adjusting of grout in the grouting device inner shell 15. Grouting pressure, the outer wall of the threaded rod 21 is provided with a spring, which can drive the threaded rod 21 and the trigger 16 to automatically reset to simplify operation. One end of the spring is fixedly connected to the threaded rod 21. The threaded rod 21 is elastically connected to the outer wall of the trigger 16 through the spring. The trigger 16 is hinged to the outer wall of the grouting inner shell 15 and the grouting outer shell 14. The outer wall of the threaded rod 21 is threadedly connected with a bolt 22. The bolt 22 can limit the sliding range of the threaded rod 21 to prevent it from falling out of the grouting inner shell 15. The bolt 22 is threadedly connected to the end away from the grouting nozzle 17.

[0033] Reference Figures 1-2The outer wall of the equipment housing 1 is fixedly connected to a shoulder strap 2, which allows the operator to carry the equipment to improve portability. An elastic cotton 8 is provided on the outer wall of the equipment housing 1 near the shoulder strap 2. The elastic cotton 8 can cushion the pressure of the equipment on the back to improve carrying comfort. A storage box 12 is opened on the inner wall of the equipment housing 1. The storage box 12 can store cement mortar to be used. A partition 5 is fixedly connected to the inner wall of the equipment housing 1. The partition 5 can separate the internal space of the equipment housing 1 to avoid interference between different components. A feed inlet 13 is opened on the top outer wall of the equipment housing 1. The feed inlet 13 can be used to add cement mortar into the storage box 12. A box cover 4 is threadedly connected to the top outer wall of the equipment housing 1. The box cover 4 can close the feed inlet 13 to prevent mortar from spilling or debris from entering the storage box 12.

[0034] Reference Figures 1-2 A motor 3 is fixedly connected to the inner wall of the equipment housing 1. The motor 3 provides power to the air pump 6 to drive the air pump 6 to operate. The output end of the motor 3 is fixedly connected to the air pump 6, which injects air into the box. Under the action of air pressure, the mortar in the storage box 12 is pushed to the elastic hose 9. The input end of the air pump 6 is fixedly connected to the air inlet pipe 7, which can draw in air to provide an air source for the air pump 6 to generate pressure. The air inlet pipe 7 is fixedly connected to the inner wall of the equipment housing 1 to ensure stable installation and avoid gas leakage. The output end of the air pump 6 is fixedly connected to the air outlet pipe 10, which can deliver the pressure generated by the air pump 6 to the storage box 12 to promote the flow of mortar. The air outlet pipe 10 is fixedly connected to the inner wall of the partition 5 to ensure fixed position and stable delivery pressure. The inner wall of the equipment housing 1 is fixedly connected to the power supply 11, which can provide power to the motor 3 to ensure normal operation of the equipment.

[0035] Working Principle: Before using this ancient building wall repair grouting device, preliminary preparations must be completed: Open the top cover 4 of the equipment casing 1, and inject the prepared cement grout into the storage tank 12 on the inner wall of the equipment casing 1 through the inlet 13. After injection, tighten the cover 4 to prevent grout from spilling or debris from entering the storage tank 12, which would affect the grouting quality. Simultaneously, ensure the storage tank 12 is sealed to provide conditions for subsequent air pressure grout delivery. After preparation, start the equipment's power system: The power supply 11 fixed to the inner wall of the equipment casing 1 supplies power to the motor 3. Once powered on, the motor 3 operates and drives the air pump 6 connected to its output end. The air pump 6... The air inlet pipe 7, fixed at the input end, draws in outside air. The resulting pressure is delivered to the storage tank 12 via the air outlet pipe 10 connected at the output end. Under the action of air pressure, the cement mortar in the storage tank 12 is continuously pushed into the elastic hose 9 fixed to the outer wall of the equipment shell 1. The elastic hose 9 can be flexibly bent to adapt to grouting requirements at different angles, facilitating subsequent precise grouting. Then, the grouting operation stage begins: the operator carries the equipment on their back using the shoulder strap 2 fixed to the outer wall of the equipment shell 1. The shoulder strap 2, along with the elastic cotton 8 on the side of the equipment shell 1 near the shoulder strap 2, can cushion the pressure of the equipment on the back, improving comfort during long-term operation. The operator then holds the grouting hose in their hand. The outer shell 14 of the grout injector has anti-slip textures on its outer wall and trigger 16 to increase hand friction and prevent slippage when hands are sweaty or contaminated with grout. The grouting nozzle 17, threadedly connected to the inner wall of the grout injector inner shell 15, is aligned with the wall cracks or hollow areas. The rubber ring 23 on the outer wall of the grouting nozzle 17 enhances the seal with the wall, preventing grout leakage during grouting. Pressing the trigger 16 activates a spring-driven threaded rod 21 slidably connected to the inner wall of the grout injector inner shell 15, causing the threaded rod 21 to slide and open the grouting channel. The grout in the elastic hose 9 is injected into the wall through the grout injector inner shell 15 and the grouting nozzle 17. Adjustments can be made according to the size of the cracks. The flow rate of the grout can be adjusted by a knob 19 inserted into a threaded cap 18 connected to the threaded outer wall of the grouting nozzle 17. While fixing the grouting nozzle 17, the threaded cap 18 can work with the knob 19 to achieve precise flow rate adjustment. The bolt 22 connected to the threaded rod 21 limits the sliding range of the threaded rod 21 and prevents it from falling out of the inner shell 15 of the grouter. After a repair is completed, the trigger 16 is released, and the spring drives the threaded rod 21 and the trigger 16 to automatically reset, closing the grouting channel and stopping the grouting. Then the grouting nozzle 17 is moved to the next repair position, and the above operation of pressing the trigger 16 is repeated until the grouting repair work of all areas is completed.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A grouting device for repairing ancient building walls, comprising a device housing (1), characterized in that: The outer wall of the equipment housing (1) is fixedly connected to an elastic hose (9), the end of the elastic hose (9) is threadedly connected to a grouting inner shell (15), the outer wall of the grouting inner shell (15) is fixedly connected to a grouting outer shell (14), the top of the grouting inner shell (15) is threadedly connected to a nut sleeve (20), the inner wall of the grouting inner shell (15) is threaded with a grouting nozzle (17), the outer wall of the grouting nozzle (17) is threadedly connected to a threaded cap (18), the outer wall of the threaded cap (18) is inserted with a knob (19), the inner wall of the grouting inner shell (15) is slidably connected to a threaded rod (21), the outer walls of the grouting inner shell (15) and the grouting outer shell (14) are hinged with a trigger (16), and the outer wall of the threaded rod (21) is threadedly connected to a bolt (22).

2. The grouting device for repairing ancient building walls according to claim 1, characterized in that: The outer wall of the equipment housing (1) is fixedly connected to a shoulder strap (2), the inner wall of the equipment housing (1) is provided with a storage box (12), the inner wall of the equipment housing (1) is fixedly connected to a partition (5), the top outer wall of the equipment housing (1) is provided with a feed inlet (13), the top outer wall of the equipment housing (1) is threadedly connected to a box cover (4), the inner wall of the equipment housing (1) is fixedly connected to a motor (3), the output end of the motor (3) is fixedly connected to an air pump (6), the input end of the air pump (6) is fixedly connected to an air inlet pipe (7), the output end of the air pump (6) is fixedly connected to an air outlet pipe (10), and the inner wall of the equipment housing (1) is fixedly connected to a power supply (11).

3. A grouting device for repairing ancient building walls according to claim 2, characterized in that: The outer wall of the device housing (1) near the shoulder strap (2) is provided with elastic cotton (8).

4. A grouting device for repairing ancient building walls according to claim 2, characterized in that: The air inlet pipe (7) is fixedly connected to the inner wall of the equipment housing (1), and the air outlet pipe (10) is fixedly connected to the inner wall of the partition (5).

5. A grouting device for repairing ancient building walls according to claim 1, characterized in that: The outer walls of the grouting device housing (14) and the trigger (16) are provided with anti-slip textures.

6. A grouting device for repairing ancient building walls according to claim 1, characterized in that: The bolt (22) is threaded at the end away from the grouting nozzle (17).

7. A grouting device for repairing ancient building walls according to claim 1, characterized in that: The outer wall of the threaded rod (21) is provided with a spring, one end of which is fixedly connected to the threaded rod (21). The threaded rod (21) is elastically connected to the outer wall of the trigger (16) by the spring.

8. A grouting device for repairing ancient building walls according to claim 1, characterized in that: The outer wall of the grouting nozzle (17) is provided with a rubber ring (23).

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