Structural crack grouting device for building maintenance

Abstract

The structural crack grouting device for building maintenance comprises a pipe body, one side of the pipe body is fixedly connected with a first L-shaped clamping block, the side, close to the first L-shaped clamping block, of the pipe body is provided with a rotating disc, the side, close to the pipe body, of the rotating disc is fixedly connected with a second L-shaped clamping block, and the second L-shaped clamping block is fixedly connected with the first L-shaped clamping block. The second L-shaped clamping block is rotationally clamped in the first L-shaped clamping block, four fixed pipes are fixedly connected to the side, away from the pipe body, of the rotating disc, moving pipes are slidably mounted on the four fixed pipes, and a first grouting head, a second grouting head, a third grouting head and a fourth grouting head are fixedly connected to the ends, away from the rotating disc, of the four moving pipes correspondingly; a through hole is formed in the pipe body and communicated with the second grouting head. According to the utility model, the grouting heads with different pipe diameters can be switched through the running fit of the turntable and the pipe body.

Description

Technical Field

[0001] This utility model mainly relates to the field of building maintenance technology, specifically a structural crack grouting device for building maintenance. Background Technology

[0002] During long-term use, buildings are prone to cracks due to factors such as the natural environment, load, and material aging. This weakens the structural strength, reduces waterproofing performance, and threatens building safety. Structural crack injection devices for building maintenance inject a highly adhesive grouting material into the cracks, which has a certain strength after curing, to fill the cracks, restore the integrity of the structure, enhance the load-bearing capacity, prevent the intrusion of moisture and other harmful substances, extend the service life of the building, and ensure the safe and stable operation of the building.

[0003] The grouting head pipe diameter of existing structural crack grouting devices for building maintenance is fixed, making it difficult to accurately adapt to different dimensions such as crack width and depth. For narrower cracks, a large-diameter grouting head may lead to waste of grouting material and difficulty in penetrating the crack interior. For wider cracks, a small-diameter grouting head may result in insufficient grouting volume, affecting the repair effect. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the grouting head pipe diameter of existing structural crack grouting devices for building maintenance is fixed, making it difficult to accurately adapt to different dimensions such as the width and depth of cracks. Therefore, this invention proposes a structural crack grouting device for building maintenance.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A structural crack grouting device for building maintenance includes a pipe body. A first L-shaped clamping block is fixedly connected to one side of the pipe body. A turntable is provided on the side of the pipe body near the first L-shaped clamping block. A second L-shaped clamping block is fixedly connected to the side of the turntable near the pipe body. The second L-shaped clamping block is rotatably engaged with the first L-shaped clamping block. Four fixed pipes are fixedly connected to the side of the turntable away from the pipe body. A movable pipe is slidably installed on each of the four fixed pipes. A first grouting head, a second grouting head, a third grouting head, and a fourth grouting head are respectively fixedly connected to the end of the four movable pipes away from the turntable. A through hole is opened on the pipe body, and the through hole communicates with the second grouting head.

[0007] As a further description of the above technical solution, the first grouting head, the second grouting head, the third grouting head and the fourth grouting head are arranged at equal intervals along the circumference of the turntable, and the pipe diameter is successively reduced.

[0008] As a further description of the above technical solution, a groove is provided on the side of the movable tube near the fixed tube, and the outer side of the inner wall of the groove is threadedly connected to the outer side of the fixed tube.

[0009] As a further description of the above technical solution, a limiting ring is fixedly connected to the side of the moving tube away from the slide groove, and a limiting groove is formed on the inner wall of the fixed tube, and the limiting ring is slidably installed on the inner wall of the limiting groove.

[0010] As a further description of the above technical solution, an annular fixing plate is fixedly installed on the outer wall of the tube body, and a collar is slidably installed on the outer wall of the tube body. A receiving groove is opened on the side of the collar near the annular fixing plate. The annular fixing plate is slidably connected to the inner wall of the receiving groove. A spring is fixedly installed between the inner wall of the receiving groove and the annular fixing plate. Four limiting blocks are fixedly connected on the side of the collar away from the annular fixing plate. Four limiting holes are equally spaced on the outer surface of the turntable. The four limiting blocks are respectively engaged with the four limiting holes.

[0011] As a further description of the above technical solution, a threaded connector is fixedly connected to the side of the tube body away from the turntable.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In this invention, the turntable and the pipe body are rotated together. By manually holding the turntable, the turntable is rotated around the rotation connection point between the second L-shaped locking block and the first L-shaped locking block. During the rotation, the turntable drives the four fixed pipes fixedly connected to the side away from the pipe body to rotate together. Since the four fixed pipes are connected to different grouting heads, the grouting heads also rotate. Furthermore, different grouting heads can be switched according to the different dimensions of the crack, such as width and depth. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is an exploded view of the structure at the connection between the turntable and the tube body of this utility model.

[0016] Figure 3 This is a cross-sectional view of the turntable and tube structure of this utility model.

[0017] Reference numerals: 10. Pipe body; 101. First L-shaped locking block; 102. Through hole; 103. Annular fixing plate; 104. Threaded connector; 11. Collar; 111. Limiting block; 112. Receiving groove; 12. Spring;

[0018] 20. Turntable; 201. Fixed pipe; 202. Second L-shaped locking block; 203. Limiting hole; 204. Limiting groove; 21. Moving pipe; 211. Sliding groove; 212. Limiting ring; 22. First grouting head; 23. Second grouting head; 24. Third grouting head; 25. Fourth grouting head. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0020] Please refer to the appendix carefully. Figures 1-3 As shown, this utility model provides a technical solution: a structural crack grouting device for building maintenance, including a pipe body 10, a first L-shaped locking block 101 fixedly connected to one side of the pipe body 10, a turntable 20 provided on the side of the pipe body 10 near the first L-shaped locking block 101, a second L-shaped locking block 202 fixedly connected to the side of the turntable 20 near the pipe body 10, the second L-shaped locking block 202 being rotatably locked into the first L-shaped locking block 101, four fixed pipes 201 fixedly connected to the side of the turntable 20 away from the pipe body 10, each of the four fixed pipes 201 having a movable pipe 21 slidably installed on it, and a first grouting head 22, a second grouting head 23, a third grouting head 24 and a fourth grouting head 25 respectively fixedly connected to the end of the four movable pipes 21 away from the turntable 20, and a through hole 102 opened on the pipe body 10, the through hole 102 being connected to the second grouting head 23.

[0021] Specifically, when performing grouting operations on different cracks, the construction personnel manually operate the turntable 20. Since the second L-shaped locking block 202 rotates and engages with the first L-shaped locking block 101, the turntable 20 can rotate relative to the pipe body 10. As the turntable 20 rotates, the four fixed pipes 201 fixedly connected to the turntable 20, the moving pipes 21 on them, and the corresponding first grouting head 22, second grouting head 23, third grouting head 24, and fourth grouting head 25 will rotate accordingly. When a grouting head that matches the crack needs to be used, it is rotated to the position of the through hole 102, so that the fixed pipe 201 corresponding to the grouting head is in a connected state with the through hole 102. This allows the grouting material in the pipe body 10 to flow into the corresponding fixed pipe 201 through the through hole 102 and be injected into the crack for repair through the grouting head.

[0022] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the first grouting head 22, the second grouting head 23, the third grouting head 24 and the fourth grouting head 25 are arranged at equal intervals along the circumference of the turntable 20, and the pipe diameter is successively reduced. This makes the crack grouting device more adaptable and better at grouting when dealing with cracks in building structures of various sizes and complexities, and improves the versatility and ease of operation of the equipment.

[0023] In one embodiment of this utility model, such as Figure 2 Figure 3 As shown, a groove 211 is provided on the side of the movable pipe 21 near the fixed pipe 201. The outer side of the inner wall of the groove 211 is threadedly connected to the outer side of the fixed pipe 201. When the movable pipe 21 is rotated, due to the threaded connection between the groove 211 of the movable pipe 21 and the fixed pipe 201, the movable pipe 21 will move linearly along the axial direction of the fixed pipe 201 according to the rotation characteristics of the thread. This allows the length of the grouting head on the movable pipe 21 to be adjusted, so that the grouting head can penetrate deep into the crack, ensuring that the grouting material can fully fill the deep part of the crack and achieve a better repair effect.

[0024] In one embodiment of this utility model, such as Figure 3 As shown, a limiting ring 212 is fixedly connected to the side of the moving tube 21 away from the slide groove 211. A limiting groove 204 is opened on the inner wall of the fixed tube 201. The limiting ring 212 is slidably installed on the inner wall of the limiting groove 204. The limiting ring 212 restricts the range of movement of the moving tube 21 on the fixed tube 201, preventing the moving tube 21 from moving excessively or detaching from the fixed tube 201 during operation. At the same time, the limiting ring 212 and the limiting groove 204 protect the repair fluid from entering the threaded connection between the slide groove 211 and the fixed tube 201, corroding the threads, causing thread damage, and thus affecting the rotation adjustment function of the moving tube 21 on the fixed tube 201.

[0025] In one embodiment of this utility model, such as Figure 2 and Figure 3 As shown, an annular fixing plate 103 is fixedly installed on the outer wall of the tube body 10, and a collar 11 is slidably installed on the outer wall of the tube body 10. A receiving groove 112 is opened on the side of the collar 11 near the annular fixing plate 103. The annular fixing plate 103 is slidably connected to the inner wall of the receiving groove 112. A spring 12 is fixedly installed between the inner wall of the receiving groove 112 and the annular fixing plate 103. Four limiting blocks 111 are fixedly connected on the side of the collar 11 away from the annular fixing plate 103. Four limiting holes 203 are equally spaced on the outer surface of the turntable 20. The four limiting blocks 111 are respectively engaged with the four limiting holes 203.

[0026] Specifically, before switching the grouting head, the collar 11 is pulled to slide the receiving groove 112 on the annular fixed plate 103, compressing the spring 12 and further disengaging the four limiting blocks 111 from the four limiting holes 203, thus releasing the lock on the turntable 20. After switching the grouting head, the collar 11 is released, and under the elastic force of the spring 12, the collar 11 is pushed to slide away from the annular fixed plate 103, causing the limiting blocks 111 to engage in the corresponding limiting holes 203, fixing the position of the turntable 20, thereby locking the position of the switched grouting head.

[0027] In one embodiment of this utility model, such as Figure 2 and Figure 3 As shown, a threaded connector 104 is fixedly connected to the side of the tube body 10 away from the turntable 20, which facilitates connection with external feeding equipment.

[0028] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A structural crack grouting device for building maintenance, comprising a pipe body (10), characterized in that, One side of the pipe body (10) is fixedly connected with a first L-shaped clamping block (101), one side of the pipe body (10) close to the first L-shaped clamping block (101) is provided with a rotating disc (20), one side of the rotating disc (20) close to the pipe body (10) is fixedly connected with a second L-shaped clamping block (202), the second L-shaped clamping block (202) is rotatably clamped in the first L-shaped clamping block (101), one side of the rotating disc (20) away from the pipe body (10) is fixedly connected with four fixed pipes (201), four movable pipes (21) are slidably installed on the four fixed pipes (201), one end of the four movable pipes (21) away from the rotating disc (20) is respectively fixedly connected with a first grouting head (22), a second grouting head (23), a third grouting head (24) and a fourth grouting head (25), a through hole (102) is formed in the pipe body (10), and the through hole (102) is in communication with the second grouting head (23).

2. The structural crack grouting device for building maintenance according to claim 1, characterized in that, The first grouting head (22), the second grouting head (23), the third grouting head (24) and the fourth grouting head (25) are arranged at equal intervals along the circumferential direction of the rotating disc (20), and the pipe diameters are arranged in a decreasing order.

3. The structural crack grouting device for building maintenance according to claim 1, characterized in that, A sliding groove (211) is formed in one side of the movable pipe (21) close to the fixed pipe (201), and the inner wall of the sliding groove (211) is threadedly connected with the outer side of the fixed pipe (201).

4. The structural crack grouting device for building maintenance according to claim 3, characterized in that, A limiting ring (212) is fixedly connected to one side of the movable pipe (21) away from the sliding groove (211), and a limiting groove (204) is formed in the inner wall of the fixed pipe (201).

5. The structural crack grouting device for building maintenance according to claim 1, characterized in that, An annular fixed plate (103) is fixedly installed on the outer wall of the pipe body (10), a sleeve ring (11) is slidably installed on the outer wall of the pipe body (10), an accommodating groove (112) is formed in one side of the sleeve ring (11) close to the annular fixed plate (103), the annular fixed plate (103) and the inner wall of the accommodating groove (112) are slidably connected, a spring (12) is fixedly installed between the inner wall of the accommodating groove (112) and the annular fixed plate (103), four limiting blocks (111) are fixedly connected to one side of the sleeve ring (11) away from the annular fixed plate (103), and four limiting holes (203) are formed at equal intervals on the outer surface of the rotating disc (20), and the four limiting blocks (111) are respectively clamped and matched with the four limiting holes (203).

6. The structural crack grouting device for building maintenance according to claim 1, characterized by, A threaded connector (104) is fixedly connected to one side of the pipe body (10) away from the rotating disc (20).

Images