Novel outer wall masonry crack filling and repairing device
By designing an external wall masonry crack filling device with a spray gun and a sanding wheel, the shortcomings of existing devices in terms of position adjustment and flatness are solved, achieving efficient crack repair and aesthetic effect.
Patent Information
- Application Number
- CN202520525692.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-25
AI Technical Summary
Existing external wall masonry crack filling devices are inconvenient to adjust when filling, resulting in uneven filling and affecting the aesthetic effect.
A novel external wall masonry crack filling and repair device was designed, comprising a moving component, a power component, and a grinding component. Repair material is sprayed by a grouting gun, and the grouting position is adjusted by a motor-driven transmission system, combined with grinding wheels to ensure smoothness.
It enables precise spraying and grinding of cracks, ensuring a smooth and aesthetically pleasing wall surface after filling, thus improving the repair effect.
Smart Images

Figure CN223793913U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of external wall masonry crack filling and repair technology, specifically a novel external wall masonry crack filling and repair device. Background Technology
[0002] The new type of external wall masonry crack filling and repair device mainly involves mixing polymer-modified cement-based repair mortar with water according to the product instructions, and then filling the cracks with the repair mortar using a trowel, ensuring that it is completely filled and slightly higher than the wall surface.
[0003] In existing technologies, most external wall masonry crack filling and repair devices are inconvenient to adjust the filling position during use, making it difficult to fill cracks slightly above the ground. At the same time, the filled cracks often result in unevenness, which reduces the aesthetic effect of the repair. Therefore, we need to propose a new type of external wall masonry crack filling and repair device. Utility Model Content
[0004] The purpose of this invention is to provide a novel device for filling and repairing cracks in external wall masonry, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A novel external wall masonry crack filling and repair device includes a base plate, a movable component installed at the bottom of the base plate, a back plate fixedly installed at the top of the base plate, and a power component installed on one side of the back plate.
[0007] The power assembly includes a first rotating shaft driven by a first motor and a second rotating shaft linked by a belt. The first and second rotating shafts are rotatably mounted on one side of the back plate in a vertically corresponding manner. A fixed plate is provided outside the belt, and a movable plate is slidably installed on the top of the fixed plate. A spray gun for spraying repair of wall cracks is fixedly installed at the front end of the movable plate.
[0008] A horizontal plate is fixedly installed on one side of the back plate, and a grinding component for grinding the grouting position is installed on the horizontal plate.
[0009] Preferably, the grinding assembly includes a second motor, which is fixedly installed on the top of the horizontal plate. One end of the output shaft of the second motor passes through the horizontal plate and is fixedly connected to a transmission gear. A rack is meshed on one side of the transmission gear, and two sets of grinding wheels for grinding the grouting position are symmetrically fixedly installed on one side of the rack.
[0010] Preferably, a limiting plate is fixedly installed at the bottom of the horizontal plate, a slide rail is provided inside the limiting plate, a slider is slidably installed inside the slide rail, and the top of the slider is fixedly connected to the bottom of the rack.
[0011] Preferably, the moving component includes a storage bin and a plurality of moving wheels. The storage bin is fixedly installed on the top of the base plate, and the plurality of moving wheels are symmetrically installed on both sides of the bottom of the base plate.
[0012] Preferably, two sets of connecting rods are symmetrically fixedly installed on the top of the base plate, and a handle is sleeved on the outside of one end of each connecting rod.
[0013] Preferably, a conveying pump for conveying material to the shotcrete gun is fixedly installed on one side of the movable plate. The discharge end of the conveying pump is connected to the shotcrete gun through a pipe, and the inlet end of the conveying pump is connected to the inside of the storage tank through a telescopic hose.
[0014] Preferably, a lifting plate is fixedly installed on the outside of one side of the belt, and the fixing plate is fixedly installed on the top of one side of the lifting plate.
[0015] Preferably, three sets of telescopic columns are fixedly installed at equal intervals on one side of the bottom of the fixed plate, and the bottom of each of the three sets of telescopic columns is fixedly connected to the surface of the base plate.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. This utility model, through the coordinated use of structures such as a moving component, a back plate, and a drive component, enables the device to spray grout onto cracks using a spray gun during operation. Simultaneously, the first motor in the drive component can be activated to rotate the first rotating shaft, which in turn drives a belt for transmission via the first and second rotating shafts. The lifting plate can then lift and lower the fixed plate, adjusting the grouting position of the spray gun on the moving plate on the surface of the fixed plate. Furthermore, the moving plate can slide within a slide rail set inside the fixed plate, thereby adjusting the grouting distance of the spray gun and facilitating the operation of the device.
[0018] 2. With the use of the grinding components, after the grouting is completed, the grinding wheel in the grinding components can be used to grind the grouting position, making the cracks in the wall smoother. In addition, the workers can start the second motor to drive the transmission gear to rotate. At this time, the transmission gear can drive the rack to mesh and move, so that the grinding wheel can grind back and forth, keeping the filled area smooth. Attached Figure Description
[0019] Figure 1 This is a side view of the three-dimensional structure of the present invention;
[0020] Figure 2 This is a schematic diagram of the structure of the base plate and the moving component of this utility model;
[0021] Figure 3 This is a schematic diagram of the backplate and drive assembly of this utility model;
[0022] Figure 4 This is a schematic diagram of the structure of the horizontal plate and the grinding assembly of this utility model.
[0023] In the diagram: 1. Base plate; 101. Storage bin; 102. Moving wheel; 103. Connecting rod; 104. Handle; 2. Back plate; 201. First motor; 202. First shaft; 203. Belt; 204. Moving plate; 205. Spray gun; 206. Fixed plate; 207. Telescopic column; 208. Lifting plate; 209. Second shaft; 210. Conveying pump; 3. Horizontal plate; 301. Second motor; 302. Transmission gear; 303. Rack; 304. Grinding wheel; 305. Limiting plate; 306. Slide rail; 307. Slider. Detailed Implementation
[0024] 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.
[0025] Please see Figure 1-4 This utility model provides a technical solution:
[0026] A novel external wall masonry crack filling and repair device includes a base plate 1, a movable component installed at the bottom of the base plate 1, a back plate 2 fixedly installed at the top of the base plate 1, and a power component installed on one side of the back plate 2.
[0027] The power assembly includes a first rotating shaft 202 driven by a first motor 201 and a second rotating shaft 209 linked by a belt 203. The first rotating shaft 202 and the second rotating shaft 209 are rotatably mounted on one side of the back plate 2 in a vertically corresponding manner. A fixed plate 206 is provided on the outside of the belt 203. A movable plate 204 is slidably installed on the top of the fixed plate 206. A spray gun 205 for spraying repair of wall cracks is fixedly installed at the front end of the movable plate 204.
[0028] The first motor 201 is a stepper motor. The first motor 201 drives the first rotating shaft 202 to rotate. The first rotating shaft 202 and the second rotating shaft 209 can drive the belt 203 for transmission. The lifting plate 208 drives the fixed plate 206 to rise and fall. The grouting position of the spray gun 205 on the moving plate 204 on the surface of the fixed plate 206 is adjusted. The moving plate 204 adjusts the horizontal position of the spray gun 205 laterally through the slide rail.
[0029] A horizontal plate 3 is fixedly installed on one side of the back plate 2, and a grinding component for grinding the grouting position is installed on the horizontal plate 3.
[0030] Specifically, the grinding assembly includes a second motor 301, which is fixedly installed on the top of the horizontal plate 3. One end of the output shaft of the second motor 301 passes through the horizontal plate 3 and is fixedly connected to a transmission gear 302. A rack 303 meshes with one side of the transmission gear 302. Two sets of grinding wheels 304 for grinding the grouting position are symmetrically fixedly installed on one side of the rack 303.
[0031] The second motor 301 drives the grinding wheel 304 to reciprocate in the horizontal direction through the meshing of the transmission gear 302 and the rack 303. The two sets of grinding wheels 304 symmetrically improve the uniformity of grinding. The gear and rack transmission ensures that the grinding trajectory is linear and controllable, avoiding eccentric vibration. The symmetrical grinding wheels 304 enhance the synchronous trimming of the grouting protrusions and reduce the need for secondary grinding.
[0032] Furthermore, a limiting plate 305 is fixedly installed at the bottom of the horizontal plate 3. A slide rail 306 is provided inside the limiting plate 305. The slide rail 306 extends along the moving direction of the rack 303. A slider 307 is slidably installed inside the slide rail 306. The top of the slider 307 is fixedly connected to the bottom of the rack 303.
[0033] The slide rail 306 and the slider 307 form a two-degree-of-freedom guide structure, which restricts the rack 303 to translate only in a set direction, eliminates the vibration caused by the lateral meshing clearance of the gear, and ensures the stability of the grinding process.
[0034] Specifically, the moving component includes a storage box 101 and multiple moving wheels 102. The storage box 101 is fixedly installed on the top of the base plate 1, and the multiple moving wheels 102 are symmetrically installed on both sides of the bottom of the base plate 1.
[0035] The storage box 101 and the casters 102 are placed on the upper and lower sides of the base plate respectively, which lowers the center of gravity of the equipment. The casters 102 are universal casters with locking function. The combination of universal casters supports multi-directional movement and fixed-point locking, which can adapt to complex external wall operation environment.
[0036] Furthermore, two sets of connecting rods 103 are symmetrically fixedly installed on the top of the base plate 1, and a handle 104 is sleeved on the outside of one end of the connecting rod 103.
[0037] The end of the 104 handle is equipped with an anti-slip rubber layer. The anti-slip design enhances the safety of high-altitude operations and prevents equipment from slipping off unexpectedly.
[0038] Furthermore, a conveying pump 210 for conveying material to the shotcrete gun 205 is fixedly installed on one side of the movable plate 204. The discharge end of the conveying pump 210 is connected to the shotcrete gun 205 through a pipe, and the feed end of the conveying pump 210 is connected to the inside of the storage tank 101 through a telescopic hose.
[0039] The delivery pump 210 adopts frequency conversion control and supplies material synchronously with the moving plate 204 through the telescopic hose. The frequency conversion pump realizes precise adjustment of the slurry flow rate to match the crack depth requirements; the telescopic hose avoids pipe entanglement and ensures the freedom of movement of the shotcrete gun 205.
[0040] Furthermore, a lifting plate 208 is fixedly installed on the outside of one side of the belt 203, and a fixing plate 206 is fixedly installed on the top of one side of the lifting plate 208.
[0041] Furthermore, three sets of telescopic columns 207 are fixedly installed at equal intervals on the bottom side of one side of the fixed plate 206, and the bottom of the three sets of telescopic columns 207 are fixedly connected to the surface of the base plate 1.
[0042] Three sets of telescopic columns 207 work together to provide auxiliary support to one side of the fixed plate 206, thereby improving the stability of the fixed plate 206 during grouting by the shotcrete gun 205.
[0043] It is worth noting that the lifting height of the lifting plate 208 driving the fixed plate 206 is limited by the maximum extension height of the telescopic column 207 (that is, the lifting plate 208 can only be raised to the first pivot 202).
[0044] Working principle: When using this utility model, the device can spray grout at the cracks through the spray gun 205. The device can start the first motor 201 to drive the first rotating shaft 202 to rotate. At this time, the first rotating shaft 202 and the second rotating shaft 209 can drive the belt 203 for transmission. The lifting plate 208 drives the fixed plate 206 to rise and fall, so that the device as a whole can adjust the grouting position. In addition, the moving plate 204 can slide in the slide rail set inside the fixed plate 206, thereby adjusting the grouting distance of the device.
[0045] After the grouting is completed, the grouting area can be polished by the sanding wheel 304 to make the cracks in the wall smoother. In addition, the staff starts the second motor 301 to drive the transmission gear 302 to rotate. At this time, the transmission gear 302 can drive the rack 303 to mesh and move, so that the sanding wheel 304 can polish back and forth, so that the device fills the cracks and makes the wall surface smoother.
[0046] When the device is in use, the operator pushes the connecting rod 103 by holding the lever 104 to move the entire device, making it convenient for the device to fill cracks in different locations.
[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A novel device for filling and repairing cracks in exterior wall masonry, characterized in that, include: Base plate (1); A movable component is installed at the bottom of the base plate (1), a back plate (2) is fixedly installed at the top of the base plate (1), and a power component is installed on one side of the back plate (2). The power assembly includes a first rotating shaft (202) driven by a first motor (201) and a second rotating shaft (209) linked by a belt (203). The first rotating shaft (202) and the second rotating shaft (209) are rotatably mounted on one side of the back plate (2) in a vertically corresponding manner. A fixed plate (206) is provided on the outside of the belt (203). A movable plate (204) is slidably installed on the top of the fixed plate (206). A spray gun (205) for spraying repair of wall cracks is fixedly installed at the front end of the movable plate (204). A horizontal plate (3) is fixedly installed on one side of the back plate (2), and a grinding component for grinding the grouting position is installed on the horizontal plate (3).
2. The novel external wall masonry crack filling and repair device according to claim 1, characterized in that: The grinding assembly includes a second motor (301), which is fixedly installed on the top of the horizontal plate (3). One end of the output shaft of the second motor (301) passes through the horizontal plate (3) and is fixedly connected to a transmission gear (302). A rack (303) meshes with one side of the transmission gear (302). Two sets of grinding wheels (304) for grinding the grouting position are symmetrically fixedly installed on one side of the rack (303).
3. The novel external wall masonry crack filling and repair device according to claim 2, characterized in that: A limiting plate (305) is fixedly installed at the bottom of the horizontal plate (3). A slide rail (306) is provided inside the limiting plate (305). A slider (307) is slidably installed inside the slide rail (306). The top of the slider (307) is fixedly connected to the bottom of the rack (303).
4. The novel external wall masonry crack filling and repair device according to claim 1, characterized in that: The moving component includes a storage bin (101) and multiple moving wheels (102). The storage bin (101) is fixedly installed on the top of the base plate (1), and the multiple moving wheels (102) are symmetrically installed on both sides of the bottom of the base plate (1).
5. A novel external wall masonry crack filling and repair device according to claim 4, characterized in that: Two sets of connecting rods (103) are symmetrically fixedly installed on the top of the base plate (1), and a handle (104) is sleeved on the outside of one end of the connecting rod (103).
6. A novel external wall masonry crack filling and repair device according to claim 4, characterized in that: A conveying pump (210) for conveying material to the shotcrete gun (205) is fixedly installed on one side of the movable plate (204). The discharge end of the conveying pump (210) is connected to the shotcrete gun (205) through a pipe, and the feed end of the conveying pump (210) is connected to the inside of the storage tank (101) through a telescopic hose.
7. The novel external wall masonry crack filling and repair device according to claim 1, characterized in that: A lifting plate (208) is fixedly installed on the outside of one side of the belt (203), and a fixing plate (206) is fixedly installed on the top of one side of the lifting plate (208).
8. A novel external wall masonry crack filling and repair device according to claim 1, characterized in that: Three sets of telescopic columns (207) are fixedly installed at equal intervals on one side of the bottom of the fixed plate (206), and the bottom of the three sets of telescopic columns (207) are fixedly connected to the surface of the base plate (1).