A wall gap filling device for house construction
By designing an automated wall crack filling device, which utilizes a spraying lifting mechanism and a motor-driven auger to achieve automatic conveying, the problem of high labor intensity caused by manual hand-held operation is solved, and the efficiency and quality of crack filling are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR EIGHTH ENG GRP SHENZHEN CONSTR TECH CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-07-03
AI Technical Summary
Existing wall filling devices require manual hand operation, resulting in high labor intensity and reduced efficiency in wall filling.
A wall gap filling device was designed, comprising a loading plate, mounting frame, fixing platform, and handrail. It utilizes a spraying lifting mechanism and a motor-driven screw rod to automatically deliver the filling material. Combined with a synchronous transmission wheel and threaded rod, it achieves precise adjustment of the discharge head, reducing the burden of manual lifting.
It reduced the labor intensity of workers, improved the speed and quality of patching, ensured the continuous supply of patching materials and the stability of the discharge head, and reduced the risk of equipment damage due to vibration.
Smart Images

Figure CN224452311U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of auxiliary equipment for building construction, and in particular to a wall gap filling device for building construction. Background Technology
[0002] Wall crack repair refers to a construction process that repairs cracks or gaps on the surface of a wall. During the construction process, cracks or gaps may appear in the wall due to material shrinkage, temperature changes, structural settlement, and other reasons. These gaps not only affect the aesthetics of the wall, but may also lead to problems such as water seepage and air leakage, reducing the thermal insulation performance and structural stability of the wall.
[0003] Existing filling devices mostly require manual operation by workers. After filling the device with sealant, the overall weight of the device is quite large. Workers may experience arm pain after holding the device for a long time, which increases the labor intensity of workers and reduces the efficiency of wall filling. Therefore, there is a need for a wall gap filling device for building construction to meet people's needs. Utility Model Content
[0004] To address the technical problem of high labor intensity caused by existing manual hand-held filling devices, this utility model provides a wall gap filling device for building construction.
[0005] The technical solution of this utility model is achieved through the following scheme: a wall gap filling device for building construction, including a loading plate, an installation frame, a fixing platform and a handrail are installed on the loading plate, a spraying lifting mechanism is movably provided on the fixing platform, the installation frame is located between the fixing platform and the handrail, a material conveying pipe is mounted on the installation frame, and the material conveying pipe is connected to the spraying lifting mechanism through a material conveying hose;
[0006] The material conveying pipe has an inlet, a first motor is installed at one end of the material conveying pipe near the handrail, a screw is rotatably installed inside the material conveying pipe, and a conveying hose is connected to the other end of the material conveying pipe.
[0007] Through the above technical solutions, the position of the filling head is adjusted by the spraying and lifting mechanism, eliminating the need for manual lifting of the entire filling device, reducing the labor intensity of workers, allowing them to focus on the filling work itself, thereby speeding up the filling process and improving the efficiency of wall filling; the first motor drives the internal rotating screw to evenly and stably deliver the filling material to the material delivery hose, ensuring a continuous supply of filling material, which is conducive to improving the quality and efficiency of filling.
[0008] Preferably, the spraying lifting mechanism includes an inner cavity formed in a fixed platform, a second motor installed on the top of the fixed platform, and a limiting plate movably installed in the fixed platform. A first transmission wheel and a second transmission wheel are rotatably installed in the inner cavity. The first transmission wheel is connected to the second transmission wheel via a synchronous belt. The drive end of the second motor is connected to the first transmission wheel. A symmetrical limiting groove is formed in the fixed platform. A threaded rod is installed in the limiting groove. The limiting plate is movably installed on the fixed platform via the threaded rod. A discharge head is installed on the limiting plate.
[0009] Preferably, one of the threaded rods is connected to the first drive wheel, and the other threaded rod is connected to the second drive wheel, with one end of the conveying hose connected to the discharge head.
[0010] Through the above technical solution, the rotational motion of the threaded rod is converted into the linear motion of the limiting plate, allowing the limiting plate to support the discharge head and slide up and down on the fixed platform with precise control. This enables accurate adjustment of the discharge head height based on the crack height, ensuring accurate spraying position. The synchronous rotation of the first and second transmission wheels ensures uniform driving force at both ends of the limiting plate, avoiding motion deviation caused by uneven force on both sides, and further improving the stability and accuracy of the discharge head movement.
[0011] Preferably, both the material conveying pipe end and the material conveying hose inlet end are mounted on the end protection device, which is installed on the loading plate.
[0012] Preferably, the end protection device includes a protective support, a plurality of first damping springs and a plurality of second damping springs. The protective support is stepped and has grooves adapted to the material conveying pipe and the conveying hose. The protective support is connected to the bearing plate through the first damping springs and the second damping springs.
[0013] Preferably, the loading plate is equipped with several casters at the bottom, and the handrail is covered with anti-slip pads.
[0014] Preferably, the fixed platform has a movable groove on the side near the mounting frame, and the material conveying hose is adapted to the movable groove.
[0015] Through the above technical solutions, the first and second damping springs effectively reduce shock and buffer the material conveying connection end, preventing damage to the material conveying pipe and conveying hose due to vibration or collision, thus extending the service life of the components. The protective support provides stable support for the material conveying pipe and conveying hose, preventing displacement at the connection point during material conveying, and ensuring the stability and continuity of material conveying. The anti-slip pads increase the friction between the worker's hands and the handrail, improving the safety and stability of operation.
[0016] In summary, this utility model has the following beneficial effects:
[0017] 1. This utility model adjusts the filling position of the discharge head through a spraying and lifting mechanism, eliminating the need for manual lifting of the entire filling device, reducing the labor intensity of workers, allowing them to focus on the filling work itself, thereby speeding up the filling process and improving the efficiency of wall filling; the first motor drives the internal rotating screw rod to evenly and stably deliver the filling material to the material delivery hose, ensuring a continuous supply of filling material, which is conducive to improving the quality of filling and work efficiency.
[0018] 2. By converting the rotational motion of the threaded rod into the linear motion of the limiting plate, the limiting plate supports the discharge head and slides up and down on the fixed platform with precise control. This allows for accurate adjustment of the discharge head height based on the crack height, ensuring accurate spraying position. The synchronous rotation of the first and second transmission wheels ensures uniform driving force at both ends of the limiting plate, avoiding motion deviation caused by uneven force on both sides, and further improving the stability and accuracy of the discharge head's movement.
[0019] 3. The first and second damping springs effectively reduce shock at the material conveying connection, preventing damage to the material conveying pipe and hose due to vibration or collision, thus extending the service life of the components. The protective support provides stable support for the material conveying pipe and hose, preventing displacement at the connection point during material conveying, and ensuring the stability and continuity of material conveying. The anti-slip pads increase the friction between the worker's hands and the handrail, improving the safety and stability of operation. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram from the main perspective of this utility model;
[0021] Figure 2 This is a rear-view three-dimensional structural diagram of the present invention;
[0022] Figure 3 This is a partial cross-sectional structural schematic diagram of this utility model;
[0023] Figure 4 yes Figure 3 A magnified structural diagram at point A;
[0024] Figure 5 This is a schematic diagram of the assembly structure of the end protection device of this utility model;
[0025] Figure 6 This is a three-dimensional structural diagram of the end protection device of this utility model.
[0026] Explanation of reference numerals in the attached diagram: 1. Loading plate;
[0027] 2. Spraying and lifting mechanism; 21. Inner cavity; 22. Second motor; 23. Threaded rod; 24. First transmission wheel; 25. Second transmission wheel; 26. Synchronous belt; 27. Limiting groove; 28. Limiting plate; 29. Discharge head;
[0028] 3. Mounting frame; 4. Material conveying pipe; 5. Inlet; 6. Fixed platform; 7. Conveying hose; 8. First motor; 9. Screw rod; 10. Handrail; 11. Anti-slip pad; 12. Movable groove; 13. Casters;
[0029] 32. End protection device; 321. Protective support; 322. First damping spring; 323. Second damping spring. Detailed Implementation
[0030] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification. The present invention will be further described in detail below with reference to the accompanying drawings.
[0032] Example 1: A wall gap filling device for building construction, such as Figures 1-6 As shown, the system includes a loading plate 1, on which a mounting frame 3, a fixed platform 6, and a handrail 10 are mounted. A spraying lifting mechanism 2 is movably mounted on the fixed platform 6. The mounting frame 3 is located between the fixed platform 6 and the handrail 10. A material conveying pipe 4 is mounted on the mounting frame 3. The material conveying pipe 4 is connected to the spraying lifting mechanism 2 through a material conveying hose 7. The mounting frame 3 is a right-angled trapezoidal block, with its right-angled side mounted on the loading plate 1. Its inclined side has a mounting groove adapted to the material conveying pipe 4. The entire frame is inclined towards the fixed platform 6 to reduce material conveying resistance. The fixed platform 6 is generally n-shaped. A movable groove 12 is provided on the side of the fixed platform 6 near the mounting frame 3. The material conveying hose 7 is adapted to the movable groove 12. The fixed platform 6 provides a space for the spraying lifting mechanism 2 to move up and down on the fixed platform 6 to fill gaps in the wall at different heights.
[0033] The material conveying pipe 4 has an inlet 5, which is bucket-shaped to facilitate the introduction of the mixed filling material. A first motor 8 is installed at one end of the material conveying pipe 4 near the handrail 10. A screw rod 9 is rotatably installed inside the material conveying pipe 4. The other end of the material conveying pipe 4 is connected to a conveying hose 7. The first motor 8, the material conveying pipe 4 and the screw rod 9 inside it constitute an auger conveyor, which continuously and evenly mixes and conveys the material. The material is transmitted to the spraying and lifting mechanism 2 through the conveying hose 7 to fill the gaps in the wall.
[0034] like Figure 3 and Figure 4 As shown, the spraying lifting mechanism 2 includes an inner cavity 21 formed within a fixed platform 6, a second motor 22 mounted on the top of the fixed platform 6, and a limiting plate 28 movably mounted within the fixed platform 6. A first transmission wheel 24 and a second transmission wheel 25 are rotatably mounted within the inner cavity 21. The first transmission wheel 24 is connected to the second transmission wheel 25 via a synchronous belt 26. The drive end of the second motor 22 is connected to the first transmission wheel 24. The first transmission wheel 24 and the second transmission wheel 25 have the same radius and rotate at the same speed. Symmetrical limiting grooves 27 are formed within the fixed platform 6. A threaded rod 23 is installed inside, and a limiting plate 28 is movably mounted on a fixed platform 6 via the threaded rod 23. A discharge head 29 is installed on the limiting plate 28. Two limiting grooves 27 are arranged in a T-shape opposite each other. T-shaped blocks are provided at both ends of the limiting plate 28, which are adapted to the T-shaped grooves and connected to the two threaded rods 23 in the two limiting grooves 27. Ball bearings are provided at the connection point to form a ball screw structure. The rotational motion of the threaded rod 23 is converted into its own linear motion through the ball screw structure. The limiting plate 28 supports the discharge head 29 to slide up and down on the fixed platform 6.
[0035] The T-block effectively restricts the movement direction of the limiting plate 28, preventing it from shifting or shaking during movement, and ensuring that the discharge head 29 always slides up and down along the predetermined vertical direction, thus improving the reliability of the mechanism operation.
[0036] The inner cavity 21 is opened inside the top of the fixed platform 6, and the drive end of the second motor 22 passes through the top of the fixed platform 6 and reaches the inner cavity 21.
[0037] like Figure 4 As shown, both threaded rods 23 pass through the limiting groove 27 and connect to the inner cavity 21. One threaded rod 23 is connected to the first transmission wheel 24, and the other threaded rod 23 is connected to the second transmission wheel 25. One end of the conveying hose 7 is connected to the discharge head 29.
[0038] Several casters 13 are installed at the bottom of the loading plate 1. Casters 13 are provided at the four corners of the bottom of the loading plate 1. Anti-slip pads 11 are affixed to the handrail frame 10 to improve grip and reduce the risk of slippage caused by sweaty or oily hands during operation.
[0039] Working principle: When wall cracks need to be filled, the mixed filler material is added from the inlet 5 of the material conveying pipe 4. The first motor 8 is started to drive the screw rod 9 to rotate. The screw rod 9 conveys the filler material to the conveying hose 7 and discharges it through the outlet 29 for filling.
[0040] When the gaps in the wall are high, the filling height of the discharge head 29 needs to be adjusted. By starting the second motor 22, the first transmission wheel 24 and the threaded rod 23 are driven to rotate. The threaded rod 23 drives the first transmission wheel 24 on the side to rotate. The synchronous belt 26 drives the second transmission wheel 25 to rotate simultaneously, which in turn drives the other threaded rod 23 to rotate. By adjusting the two threaded rods 23 to rotate simultaneously, the limiting plate 28 can move up and down and drive the discharge head 29 to move, filling the required position.
[0041] When in use, the staff can easily adjust the filling direction by holding the handrail 10 and rotating the casters 13. During filling, the staff does not need to manually lift one end of the discharge head 29, which reduces the workload of the staff and improves the efficiency of wall grouting.
[0042] Example 2: As Figure 5 and Figure 6 As shown, the material conveying pipe 4 conveying end and the material conveying hose 7 inlet end are both mounted on the end protection device 32. The end protection device 32 is installed on the loading plate 1. Because the stress and vibration at the connection between the material conveying hose 7 and the material conveying pipe 4 are too great, the end protection device 32 is set to support the connection. The end protection device 32 is located between the fixed platform 6 and the mounting frame 3.
[0043] The end protection device 32 includes a protective support platform 321, several first damping springs 322, and several second damping springs 323. The protective support platform 321 is stepped, and each of the protective support platforms 321 has grooves adapted to the material conveying pipe 4 and the conveying hose 7. Soft rubber anti-slip pads are also attached to the grooves to reduce wear on the pipes and provide additional cushioning. The protective support platform 321 is connected to the support plate through the first damping springs 322 and the second damping springs 323. The protective support platform 321 is stepped in shape, and its inclination is the same as the inclination of the material conveying pipe 4. To ensure effective support and fit between the material conveying pipe 4 and the conveying hose 7, the protective support 321 supports one end of the material conveying pipe 4 with several first damping springs 322 and one end of the conveying hose 7 with several second damping springs 323. The first damping springs 322 are slightly larger than the second damping springs 323 to accommodate the differences in weight and conveying pressure between the material conveying pipe 4 and the conveying hose 7, thereby achieving a better buffering and shock absorption effect and reducing the impact of stress and vibration on the material conveying pipe 4 conveying end and the material conveying hose 7 inlet end.
[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.
Claims
1. A wall gap filling device for house construction, comprising a loading plate (1), characterized in that: The loading plate (1) is equipped with a mounting frame (3), a fixed platform (6) and a handrail (10). A spraying lifting mechanism (2) is movably mounted on the fixed platform (6). The mounting frame (3) is located between the fixed platform (6) and the handrail (10). A material conveying pipe (4) is mounted on the mounting frame (3). The material conveying pipe (4) is connected to the spraying lifting mechanism (2) through a material conveying hose (7). The material conveying pipe (4) has an inlet (5), a first motor (8) is installed at one end of the material conveying pipe (4) near the handrail (10), a screw rod (9) is rotatably installed inside the material conveying pipe (4), and a conveying hose (7) is connected to the other end of the material conveying pipe (4).
2. The wall gap filling device for house construction according to claim 1, characterized in that: The spraying lifting mechanism (2) includes an inner cavity (21) opened in the fixed platform (6), a second motor (22) installed on the top of the fixed platform (6), and a limiting plate (28) movably installed in the fixed platform (6). A first transmission wheel (24) and a second transmission wheel (25) are rotatably installed in the inner cavity (21). The first transmission wheel (24) is connected to the second transmission wheel (25) through a synchronous belt (26). The driving end of the second motor (22) is connected to the first transmission wheel (24). A symmetrical limiting groove (27) is opened in the fixed platform (6). A threaded rod (23) is installed in the limiting groove (27). The limiting plate (28) is movably installed on the fixed platform (6) through the threaded rod (23). A discharge head (29) is installed on the limiting plate (28).
3. The wall gap filling device for house construction according to claim 2, characterized in that: One of the threaded rods (23) is connected to the first drive wheel (24), and the other threaded rod (23) is connected to the second drive wheel (25). One end of the conveying hose (7) is connected to the discharge head (29).
4. The wall gap filling device for house construction according to claim 1, characterized in that: The material conveying pipe (4) conveying end and the material conveying hose (7) inlet end are both mounted on the end protection device (32), which is installed on the loading plate (1).
5. The wall gap filling device for house construction according to claim 4, characterized in that: The end protection device (32) includes a protective support (321), a number of first damping springs (322) and a number of second damping springs (323). The protective support (321) is stepped. The protective support (321) is provided with grooves that are adapted to the material conveying pipe (4) and the material conveying hose (7). The protective support (321) is connected to the bearing plate through the first damping springs (322) and the second damping springs (323).
6. The wall gap filling device for house construction according to claim 1, characterized in that: The loading plate (1) is equipped with several casters (13) at the bottom, and the handrail (10) is covered with anti-slip stickers (11).
7. The wall gap filling device for house construction according to claim 1, characterized in that: The fixed platform (6) has a movable groove (12) on the side near the mounting frame (3), and the material conveying hose (7) is adapted to the movable groove (12).