A grouting device for concrete production
By introducing rubber rollers and scrapers into the grouting device, the problem of grout overflow requiring manual smoothing was solved, achieving automated grout leveling and surface flatness, thus improving construction efficiency and quality.
Patent Information
- Application Number
- CN202522023477.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-19
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-19
AI Technical Summary
In existing technologies, when concrete grout overflows, it needs to be manually smoothed out a second time, which is cumbersome and time-consuming, especially when repairing large-area cracks, making it difficult to meet the construction schedule requirements.
A grouting device for concrete production was designed, comprising a rubber roller brush and a scraper mechanism. The roller brush is matched with the grout outlet end of the grouting nozzle, and the scraper is in contact with the surface of the roller brush. The roller brush and scraper can perform preliminary leveling and secondary smoothing respectively, reducing manual intervention.
It enables automatic leveling of overflowing grout, reduces manual operation steps, improves construction efficiency and quality, and ensures the smoothness of the grouting surface.
Smart Images

Figure CN224679186U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete grouting technology, and more specifically, to a grouting device for concrete production. Background Technology
[0002] Grouting is the process of injecting specific solidification materials, such as cement, lime, or chemicals, into the foundation soil and rock within a certain range below the foundation using a grouting technique. This filling aims to fill cracks and pores in the soil and rock, improve its impermeability, and enhance its overall strength and rigidity.
[0003] Concrete cracks are a common problem in concrete quality issues. When cracks appear in concrete, they not only detract from the aesthetics of a building but also potentially threaten its structural safety. Therefore, crack repair is necessary. One method involves inserting a grouting pipe directly into the crack to inject concrete. However, when using this method, the grout tends to overflow from the crack once it is full, especially as the concrete supply pipe continuously injects grout. Existing processes require manual troweling for secondary smoothing, which is cumbersome, time-consuming, and labor-intensive. Especially when repairing large-area cracks, manual operation is inefficient and cannot meet the construction schedule requirements. Therefore, we propose a grouting device for concrete production. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a grouting device for concrete production to solve the technical problem that the current grout overflow requires manual secondary smoothing, which is a cumbersome and time-consuming process.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a grouting device for concrete production, including a grouting pipe with a threaded interface at the inlet end and a grouting nozzle fixedly installed at the outlet end; a roller brush mechanism, including a rubber roller brush, which is disposed at the outlet end of the grouting nozzle, and the grouting nozzle has an arc-shaped groove matching the shape of the rubber roller brush on the side near the rubber roller brush; and an auxiliary mechanism, including a rotating frame, a scraper, and a trowel plate, wherein the rotating frame is rotatably mounted on the outside of the rubber roller brush, the scraper is fixedly mounted on the side of the rotating frame near the rubber roller brush with its working end in contact with the surface of the rubber roller brush, and a trowel plate is fixedly installed on the end of the rotating frame away from the scraper.
[0006] Preferably, the roller brush mechanism further includes a threaded tube, which is fixedly installed outside the grouting pipe. A rotating sleeve is threaded onto the outside of the threaded tube, and a first shielding tube and a second shielding tube are rotatably installed at both ends of the rotating sleeve. A first receiving tube and a second receiving tube are fixedly installed outside the grouting pipe, and a first receiving groove and a second receiving groove are respectively opened inside the pipe. The first shielding tube is slidably installed in the first receiving groove, and the second shielding tube is slidably installed in the second receiving groove. A connecting tube is hinged to the outside of the second shielding tube through a first torsion spring. A connecting rod is fixedly installed outside the connecting tube, and a rubber roller brush is rotatably installed at the end of the connecting rod away from the connecting tube.
[0007] Preferably, the auxiliary mechanism further includes a second torsion spring, which is fixedly installed between the connecting rod and the rotating frame, and a collection groove is provided on the inner side of the scraper.
[0008] Preferably, both the first shielding pipe and the second shielding pipe form a cavity with the grouting pipe, and the threaded pipe is disposed inside the cavity.
[0009] Preferably, when the first torsion spring is in its initial position, it maintains the orientation of the connecting rod so that the central axis of the rubber roller brush coincides with the central axis of the grouting nozzle.
[0010] Preferably, when the second torsion spring is in its initial position, it maintains the adhesion between the scraper and the rubber roller.
[0011] Preferably, the width of the wiping plate is greater than the length of the rubber roller brush.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model uses a rubber roller brush positioned at the grout outlet of the grouting nozzle, its shape matching the arc-shaped groove of the grouting nozzle. The arc-shaped groove can seal against the rubber roller brush when it deforms, forming a protective structure during storage to prevent the roller brush from becoming contaminated. After grouting, the rolling of the rubber roller brush can initially level the overflowing grout, solving the problem of the need for manual secondary smoothing of overflowing grout, which is a cumbersome and time-consuming process.
[0014] 2. This utility model also features a scraper blade that fits snugly against the surface of the rubber roller brush, with a collection groove on its inner side. When the rubber roller brush rolls, the scraper blade scrapes off any adhering grout and collects it in the groove, preventing grout residue from affecting the performance of the rubber roller brush and reducing manual cleaning steps. A squeegee plate is fixedly installed at the end of the rotating frame furthest from the scraper blade, and its width is greater than the length of the rubber roller brush. After the rubber roller brush has leveled the surface, the squeegee plate can be used for secondary leveling to ensure the smoothness of the grouting surface, improve construction quality, and solve the problem of grout overflow requiring tedious and time-consuming manual secondary leveling. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the external structure of this utility model;
[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0017] Figure 3 This is a schematic diagram of the roller brush mechanism of this utility model;
[0018] Figure 4 This is a schematic diagram of the rotating sleeve and related structures of this utility model;
[0019] Figure 5 This is a schematic diagram of the second shielding tube and its related structures of the present invention;
[0020] Figure 6 This is a cross-sectional structural diagram of the auxiliary mechanism of this utility model.
[0021] The following are the labels in the diagram: 1. Grouting pipe; 11. Threaded interface; 12. Grouting nozzle; 121. Arc groove; 2. Roller brush mechanism; 21. Threaded pipe; 22. Rotating sleeve; 23. First shielding pipe; 24. First receiving pipe; 241. First receiving groove; 25. Second shielding pipe; 26. Second receiving pipe; 261. Second receiving groove; 27. Connecting rod; 271. Connecting pipe; 272. First torsion spring; 28. Rubber roller brush; 3. Auxiliary mechanism; 31. Rotating frame; 32. Second torsion spring; 33. Scraper; 34. Collection groove; 35. Squeegee. Detailed Implementation
[0022] Example: Figures 1 to 6As shown, this utility model relates to a grouting device for concrete production, including a grouting pipe 1 with a threaded interface 11 at the inlet end and a grouting nozzle 12 fixedly installed at the outlet end; a roller brush mechanism 2, including a rubber roller brush 28, which is disposed at the outlet end of the grouting nozzle 12, and the grouting nozzle 12 has an arc-shaped groove 121 that matches the shape of the rubber roller brush 28 on the side near the rubber roller brush 28; and an auxiliary mechanism 3, including a rotating frame 31 and a scraper 3. The rotating frame 31 is rotatably mounted on the outside of the rubber roller brush 28, and the scraper 33 is fixedly mounted on the side of the rotating frame 31 near the rubber roller brush 28, with its working end in contact with the surface of the rubber roller brush 28. The rotating frame 31 away from the scraper 33 is fixedly mounted with the smearing plate 35, the width of which is greater than the length of the rubber roller brush 28. In this invention, the rubber roller brush 28 is set at the grout outlet end of the grouting nozzle 12, and its shape matches the arc groove 121 of the grouting nozzle 12. The arc groove 121 can seal and fit the rubber roller brush 28 when it deforms, forming a protective structure when stored to prevent the roller brush from being contaminated. After grouting, the rolling of the rubber roller brush 28 can initially level the overflowing grout, solving the problem of the need for manual secondary leveling of overflowing grout, which is a cumbersome and time-consuming process.
[0023] Furthermore, such as Figures 2 to 5 As shown, the roller brush mechanism 2 also includes a threaded tube 21, which is fixedly installed outside the grouting pipe 1. A rotating sleeve 22 is threadedly installed on the outside of the threaded tube 21. A first blocking tube 23 and a second blocking tube 25 are rotatably installed at both ends of the rotating sleeve 22, respectively. The first blocking tube 23 and the second blocking tube 25 form cavities with the grouting pipe 1, and the threaded tube 21 is disposed inside the cavity. A first receiving tube 24 and a second receiving tube 26 are fixedly installed outside the grouting pipe 1, and a first receiving groove 241 and a second receiving groove 261 are respectively opened inside the grouting pipe 1. The first blocking tube 23 is slidably installed in the first receiving groove 241, and the second blocking tube 25 is slidably installed in the second receiving groove 261. Inside the trough 261; a connecting pipe 271 is hinged to the outside of the second shielding pipe 25 via a first torsion spring 272. When the first torsion spring 272 is in its initial position, it maintains the orientation of the connecting rod 27 so that the central axis of the rubber roller brush 28 coincides with the central axis of the grouting nozzle 12. A connecting rod 27 is fixedly installed on the outside of the connecting pipe 271. A rubber roller brush 28 is rotatably installed on the end of the connecting rod 27 away from the connecting pipe 271. A rotating sleeve 22 is connected to a threaded pipe 21 via threads. The first shielding pipe 23 and the second shielding pipe 25 at both ends can extend out when the rotating sleeve 22 moves to shield the threaded groove of the threaded pipe 21 and prevent grout or debris from entering the threaded connection part.
[0024] Furthermore, such as Figure 6As shown, the auxiliary mechanism 3 also includes a second torsion spring 32, which is fixedly installed between the connecting rod 27 and the rotating frame 31. When the second torsion spring 32 is in its initial position, it maintains the contact between the scraper 33 and the rubber roller brush 28. A collection groove 34 is provided on the inner side of the scraper 33. Furthermore, by having the working end of the scraper 33 in contact with the surface of the rubber roller brush 28 and having a collection groove 34 on its inner side, when the rubber roller brush 28 rolls, the scraper 33 can scrape off the adhering slurry and collect it in the groove, preventing slurry residue from affecting the performance of the rubber roller brush 28 and reducing manual cleaning steps. A squeegee 35 is fixedly installed on the end of the rotating frame 31 away from the scraper 33, and its width is greater than the length of the rubber roller brush 28. After the rubber roller brush 28 is laid flat, the squeegee 35 can perform a secondary smoothing to ensure the flatness of the grouting surface, improve construction quality, and solve the problem of slurry overflow requiring manual secondary smoothing, which is cumbersome and time-consuming.
[0025] Working principle: This embodiment provides a grouting device for concrete production. In use, the grouting pipe 1 is connected to the opening of the external concrete supply pipe through the threaded interface 11 at the grout inlet end. The rotating sleeve 22 is rotated and threadedly installed with the threaded pipe 21 fixedly installed outside the grouting pipe 1, so that the rotating sleeve 22 moves outside the threaded pipe 21, thereby pulling the first blocking pipe 23 to slide inside the first receiving groove 241 opened inside the first receiving pipe 24, and pushing the second blocking pipe 25 to slide inside the second receiving groove 261 opened inside the second receiving pipe 26, thereby blocking the exposed thread groove of the threaded pipe 21 by the first blocking pipe 23 and the second blocking pipe 25. The rotating sleeve 22 is rotatably installed with the first blocking pipe 23 and the second blocking pipe 25 respectively, exposing the grouting nozzle 12 fixedly installed at the grout outlet end of the grouting pipe 1.
[0026] The rubber roller brush 28 is placed against the ground, and the grouting pipe 1 is flipped over. The grouting pipe 1, the connecting rod 27 and the ground form a triangular structure. At this time, the connecting rod 27 rotates outside the second shielding pipe 25, causing the first torsion spring 272, which is fixedly installed inside the connecting rod 27 and between the connecting pipe 271 and the second shielding pipe 25, to deform and store energy. The grouting nozzle 12 is then inserted into the gap to perform the grouting operation.
[0027] After the grouting operation is completed, grout will overflow. Pull out the grouting nozzle 12 and use the rubber roller brush 28 to smooth the overflowing grout in the gap. During the rolling process, the trowel plate 35 set at the bottom of the rubber roller brush 28 will contact the ground and follow the rubber roller brush 28 to perform a secondary smoothing operation. Under the force of the roller brush, the second torsion spring 32 set between the rotating frame 31 and the connecting rod 27 deforms and stores energy, so that the scraper 33 is in close contact with the rubber roller brush 28, scraping off the concrete grout adhering to the surface of the rubber roller brush 28 and letting it fall into the collection tank 34.
[0028] After the grouting operation is completed, the connecting rod 27, under the action of the first torsion spring 272, makes the rubber roller brush 28 and the grouting nozzle 12 coaxial. By rotating the rotating sleeve 22 in the opposite direction, the rubber roller brush 28 can come into contact with the grouting nozzle 12. Since the grouting nozzle 12 is set to fit the arc groove 121 of the rubber roller brush 28, the arc groove 121 can be sealed and fitted with the rubber roller brush 28 under the rubber deformation. At this time, the residual concrete grout inside the collection tank 34 can be cleaned.
[0029] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.
Claims
1. A grouting device for concrete production, characterized in that, include, The grouting pipe (1) has a threaded interface (11) at its grout inlet end and a grouting nozzle (12) fixedly installed at its grout outlet end; The roller brush mechanism (2) includes a rubber roller brush (28), which is disposed at the grout outlet end of the grouting nozzle (12). The grouting nozzle (12) has an arc-shaped groove (121) that matches the shape of the rubber roller brush (28) on the side near the rubber roller brush (28). The auxiliary mechanism (3) includes a rotating frame (31), a scraper (33) and a wiping plate (35). The rotating frame (31) is rotatably mounted on the outside of the rubber roller brush (28). The scraper (33) is fixedly mounted on the side of the rotating frame (31) close to the rubber roller brush (28), and its working end is in contact with the surface of the rubber roller brush (28). The wiping plate (35) is fixedly mounted on the end of the rotating frame (31) away from the scraper (33).
2. The grouting device for concrete production according to claim 1, characterized in that, The roller brush mechanism (2) also includes a threaded tube (21), which is fixedly installed outside the grouting pipe (1). A rotating sleeve (22) is threaded on the outside of the threaded tube (21), and a first shielding tube (23) and a second shielding tube (25) are rotatably installed at both ends of the rotating sleeve (22). The grouting pipe (1) is externally fixedly equipped with a first receiving pipe (24) and a second receiving pipe (26), and internally respectively provided with a first receiving groove (241) and a second receiving groove (261). The first shielding pipe (23) is slidably installed in the first receiving groove (241), and the second shielding pipe (25) is slidably installed in the second receiving groove (261). A connecting pipe (271) is hinged to the outside of the second shielding pipe (25) via a first torsion spring (272). A connecting rod (27) is fixedly installed on the outside of the connecting pipe (271). A rubber roller brush (28) is rotatably installed on the end of the connecting rod (27) away from the connecting pipe (271).
3. A grouting device for concrete production according to claim 2, characterized in that, The auxiliary mechanism (3) also includes a second torsion spring (32), which is fixedly installed between the connecting rod (27) and the rotating frame (31). A collection groove (34) is provided on the inner side of the scraper (33).
4. A grouting device for concrete production according to claim 2, characterized in that, The first shielding pipe (23) and the second shielding pipe (25) both form a cavity with the grouting pipe (1), and the threaded pipe (21) is set inside the cavity.
5. A grouting device for concrete production according to claim 2, characterized in that, When the first torsion spring (272) is in its initial position, it maintains the orientation of the connecting rod (27) so that the central axis of the rubber roller brush (28) coincides with the central axis of the grouting nozzle (12).
6. A grouting device for concrete production according to claim 3, characterized in that, When the second torsion spring (32) is in its initial position, it maintains the contact between the scraper (33) and the rubber roller (28).
7. A grouting device for concrete production according to claim 3, characterized in that, The width of the trowel (35) is greater than the length of the rubber roller (28).