Building wall crack grouting device

Abstract

The utility model discloses a building wall crack grouting device, which relates to the technical field of grouting devices, and comprises a switching disc and a grip, a rotating shaft is fixed on the bottom wall of the circle center of the switching disc, the rotating shaft is rotatably connected to the top wall of the grip, a plurality of through holes are formed in the surface of the switching disc, and grouting heads are arranged in hole cavities of the through holes. Stand columns fixed to the top wall of the switching disc are arranged on the two sides of the grouting head, limiting blocks are fixed to the top ends of the stand columns, movable blocks are fixed to the circumferential side wall of the grouting head and movably arranged on the surfaces of column bodies of the stand columns in a sleeving mode, and first springs are arranged between the movable blocks and the limiting blocks; a plurality of positioning blocks distributed in a circumferential array mode are fixed to the bottom wall of the switching disc, and a positioning mechanism is arranged on the circumferential side wall of the grip. According to the utility model, a plurality of grouting heads with different specifications are arranged on the switching disc, so that the grouting heads can be quickly replaced according to the size of a crack opening of a wall body, and the condition that a grouting head with a single specification is adopted is avoided.

Description

Technical Field

[0001] This utility model relates to the field of grouting device technology, specifically a grouting device for cracks in building walls. Background Technology

[0002] A wall crack grouting device is a piece of equipment used to repair and reinforce wall cracks. It mainly consists of a grouting pump, a grout storage tank, a grouting pipe, a pressure gauge, valves, and other components. Its working principle is to use the grouting pump to draw grout from the storage tank and inject it into the wall cracks through the grouting pipe, allowing the grout to fill and solidify in the cracks, thereby achieving the purpose of repairing cracks and improving the strength and sealing of the wall.

[0003] Chinese patent CN220150986U discloses a wall expansion joint grouting device. The utility model includes a liquid storage chamber with an internal cavity, and an arc-shaped application port at the liquid outlet end of the liquid storage chamber. A piston that can reciprocate is installed inside the liquid storage chamber to complete the action of pushing the grout. Wheel sets are symmetrically arranged on the side of the application port. When using the device, the user only needs to align the application port with the expansion joint, which is more convenient and efficient. It also does not require the user to be distracted, thus ensuring high grouting accuracy.

[0004] However, the grouting device disclosed in the above patent still has certain inconveniences in actual use. Since it uses the grouting nozzle to inject grout into the crack, and the crack openings on the existing walls are irregular in size, it is difficult to complete the grouting operation smoothly when the grouting nozzle of the grouting device does not match the crack size. Therefore, it is necessary to replace the grouting head with a suitable one according to the crack opening size. However, the grouting nozzle of the grouting device disclosed in the above patent is not easy to replace, which can easily affect the smooth progress of the grouting operation. Utility Model Content

[0005] The purpose of this utility model is to provide a grouting device for cracks in building walls, so as to solve the problems mentioned in the background art, such as the irregular size of crack openings in existing walls and the inconvenience of replacing the grouting head of existing grouting devices.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a grouting device for cracks in building walls, comprising a switching disc and a handle. A rotating shaft is fixed to the bottom wall at the center of the switching disc, and the rotating shaft is rotatably connected to the top wall of the handle. The surface of the switching disc has multiple through holes, and a grouting head is provided in the cavity of each through hole. A column fixed to the top wall of the switching disc is provided on both sides of the grouting head. A limit block is fixed to the top of the column. A movable block is fixed to the circumferential side wall of the grouting head, and the movable block is movably sleeved on the column body surface. A first spring sleeved on the column body surface is provided between the movable block and the limit block. A plurality of positioning blocks arranged in a circumferential array are fixed to the bottom wall of the switching disc, and a positioning mechanism is provided on the circumferential side wall of the handle.

[0007] Preferably, the positioning mechanism includes two horizontal plates fixedly installed on the top circumferential sidewall of the grip, a vertical rod fixedly installed between the adjacent sidewalls of the two horizontal plates, and a positioning head slidably connected to the surface of the vertical rod.

[0008] Preferably, the positioning mechanism further includes a second spring sleeved on the surface of the vertical rod body, the second spring being located at the bottom of the positioning head, and a positioning groove being formed on the top wall of the end of the positioning head, the positioning groove being adapted to the positioning block.

[0009] Preferably, a grouting cylinder is provided on one side of the handle, and two fixing plates are fixedly installed on the circumferential side wall of the handle, with the cylinder of the grouting cylinder movably passing through the plates of the fixing plates on both sides.

[0010] Preferably, a limiting ring is fixed to the bottom surface of the grouting cylinder, the limiting ring is located in the clamping cavity of the two fixing plates, and the bottom of the grouting cylinder is connected to a grout supply pipe.

[0011] Preferably, the outer wall of the top cylinder of the grouting cylinder and the inner wall of the bottom cavity of the grouting head are both threaded, and the two threads are compatible with each other.

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

[0013] This invention allows for the replacement of grouting heads of different specifications when different sizes of grouting heads are needed to accommodate different wall crack openings. First, the grouting cylinder is screwed away from the existing grouting head, separating them through a threaded connection. Since the switching disc can accommodate multiple grouting heads of various specifications, pressing down on the positioning head moves it along the vertical rod and compresses the second spring, causing the positioning block, originally in the positioning groove, to disengage. With the rotating shaft and handle connected via a bearing, the switching disc can be rotated to move the desired grouting head directly above the grouting cylinder. Releasing the positioning head then... The spring causes the positioning head to rise automatically, allowing the positioning block at the top of the positioning head to be re-inserted into the positioning slot. This prevents the switching disc from rotating, allowing the grouting cylinder to be connected to the newly switched grouting head via threads, thus completing the replacement of the grouting head. During grouting, the grouting cylinder can be moved to move the grouting head, causing the movable block to move along the column and compress the first spring, allowing the grouting head to extend into the crack to complete the grouting. This improves the grouting quality and enables quick replacement of the grouting head according to the size of the wall crack opening, avoiding the need to use a single specification of grouting head. Attached Figure Description

[0014] Figure 1 This is a first-view structural schematic diagram of a grouting device for cracks in building walls according to the present invention.

[0015] Figure 2 This is a second-view structural schematic diagram of a grouting device for cracks in building walls according to the present invention.

[0016] Figure 3 This is a third-view structural schematic diagram of a grouting device for cracks in building walls according to the present invention.

[0017] Figure 4 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0018] In the diagram: 1. Switching disc; 2. Handle; 3. Fixing plate; 4. Grouting cylinder; 5. Limiting ring; 6. Grouting supply pipe; 7. Thread; 8. Through hole; 9. Grouting head; 10. Column; 11. Limiting block; 12. First spring; 13. Movable block; 14. Rotating shaft; 15. Positioning block; 16. Horizontal plate; 17. Positioning head; 18. Positioning groove; 19. Vertical rod; 20. Second spring. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 This utility model provides a technical solution: a grouting device for cracks in building walls, including a switching disc 1 and a handle 2. A rotating shaft 14 is welded to the bottom wall at the center of the switching disc 1, and the rotating shaft 14 is rotatably connected to the top wall of the handle 2 via a bearing, the purpose of which is to allow the switching disc 1 to rotate. Multiple through holes 8 are formed on the surface of the switching disc 1, and grouting heads 9 are set in the cavities of the through holes 8. The specifications of the grouting heads 9 on the switching disc 1 are all different. Both sides of the grouting head 9 are provided with columns 10 welded to the top wall of the switching disk 1. A limiting block 11 is welded to the top of the column 10, and a movable block 13 is welded to the circumferential side wall of the grouting head 9. The movable block 13 is movably sleeved on the surface of the column 10. A first spring 12 is provided between the movable block 13 and the limiting block 11 and sleeved on the surface of the column 10. The purpose of this is to allow the movable block 13 to move along the surface of the column 10, and the purpose of the limiting block 11 is to prevent the movable block 13 from detaching from the surface of the column 10. The bottom wall of the switching disk 1 is welded with multiple positioning blocks 15 arranged in a circumferential array. The positioning mechanism is located on the circumferential side wall of the handle 2.

[0021] The positioning mechanism includes two horizontal plates 16 welded to the top circumferential sidewalls of the handle 2, and a vertical rod 19 welded between adjacent sidewalls of the two horizontal plates 16. A positioning head 17 is slidably connected to the surface of the vertical rod 19, allowing the positioning head 17 to move along the vertical rod 19. The positioning mechanism also includes a second spring 20 sleeved on the surface of the vertical rod 19, located at the bottom of the positioning head 17, to enable the positioning head 17 to automatically reset. A positioning groove 18 is formed on the top wall of the end of the positioning head 17, and is adapted to fit a positioning block 15, allowing the positioning block 15 to be inserted into the positioning groove 18. When the positioning block 15 is inserted into the positioning groove 18, the switching disk 1 cannot rotate. A grouting cylinder 4 is located on the right side of the handle 2. Two fixing plates 3 are welded to the circumferential sidewalls of the handle 2. The cylinder of the grouting cylinder 4 movably passes through the plates of the fixing plates 3 on both sides, allowing the grouting cylinder 4 to move. The limiting ring 5 is bonded to the bottom surface of the grouting cylinder 4. The limiting ring 5 is located in the cavity between the two fixing plates 3. Its purpose is to prevent the grouting cylinder 4 from detaching from the two fixing plates 3. The grout supply pipe 6 is connected to the bottom cylinder of the grouting cylinder 4. A grout source can be connected to the outside of the grout supply pipe 6. The outer wall of the top cylinder of the grouting cylinder 4 and the inner wall of the bottom cavity of the grouting head 9 are both provided with threads 7. The two threads 7 are mutually compatible. The purpose is to facilitate the installation and disassembly of the grouting cylinder 4 and the grouting head 9.

[0022] When it is necessary to replace the grouting head 9 with a different specification according to the size of the wall crack opening, the grouting cylinder 4 can be screwed off from the original grouting head 9 first. Under the action of the threaded connection 7, the grouting cylinder 4 is separated from the original grouting head 9. Since the switching plate 1 can be equipped with multiple specifications of grouting heads 9, by pressing down the positioning head 17, the positioning head 17 moves along the vertical rod 19 and squeezes the second spring 20, thereby causing the positioning block 15, which was originally located in the positioning groove 18, to disengage from the positioning groove 18. With the rotating shaft 14 and the handle 2 rotatably connected by the bearing, the switching plate 1 can be rotated to move the required grouting head 9 directly above the grouting cylinder 4. Release the positioning head 17, and the second spring... Under the action of 20, the positioning head 17 automatically rises, thereby re-inserting the positioning block 15 located at the top of the positioning head 17 into the positioning groove 18, so that the switching disk 1 can no longer rotate. The grouting cylinder 4 can be connected to the newly switched grouting head 9 through the thread 7, thereby completing the replacement of the grouting head 9. During grouting, the grouting head 9 can also be moved by moving the grouting cylinder 4, so that the movable block 13 moves along the column 10 and squeezes the first spring 12, allowing the grouting head 9 to be inserted into the crack to complete the grouting. This is beneficial to improving the grouting quality and realizes the quick replacement of the grouting head 9 according to the size of the wall crack opening, avoiding the situation of using a single specification of grouting head 9.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] 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 grouting device for cracks in building walls, comprising a switching disc (1) and a handle (2), characterized in that: A rotating shaft (14) is fixed to the bottom wall at the center of the switching disk (1). The rotating shaft (14) is rotatably connected to the top wall of the handle (2). Multiple through holes (8) are opened on the surface of the switching disk (1). A grouting head (9) is provided in the cavity of the through hole (8). A column (10) fixed to the top wall of the switching disk (1) is provided on both sides of the grouting head (9). A limit block (11) is fixed at the top of the column (10). A movable block (13) is fixed on the circumferential side wall of the grouting head (9). The movable block (13) is movably sleeved on the column surface of the column (10). A first spring (12) is sleeved on the column surface of the column (10) between the movable block (13) and the limit block (11). Multiple positioning blocks (15) are fixed on the bottom wall of the switching disk (1) in a circumferential array. A positioning mechanism is provided on the circumferential side wall of the handle (2).

2. The grouting device for cracks in building walls according to claim 1, characterized in that: The positioning mechanism includes two horizontal plates (16) fixedly installed on the top circumferential sidewall of the grip (2), and a vertical rod (19) fixedly installed between the adjacent sidewalls of the two horizontal plates (16). A positioning head (17) is slidably connected to the surface of the vertical rod (19).

3. The grouting device for cracks in building walls according to claim 2, characterized in that: The positioning mechanism also includes a second spring (20) sleeved on the surface of the vertical rod (19). The second spring (20) is located at the bottom of the positioning head (17), and the top wall of the end of the positioning head (17) is provided with a positioning groove (18), which is adapted to the positioning block (15).

4. The grouting device for cracks in building walls according to claim 1, characterized in that: A grouting cylinder (4) is provided on one side of the handle (2). Two fixing plates (3) are fixedly installed on the circumferential sidewall of the handle (2). The cylinder of the grouting cylinder (4) moves through the plates of the fixing plates (3) on both sides.

5. The grouting device for cracks in building walls according to claim 4, characterized in that: A limiting ring (5) is fixed on the bottom cylinder surface of the grouting cylinder (4). The limiting ring (5) is located in the clamping cavity of the two fixing plates (3). The bottom cylinder of the grouting cylinder (4) is connected to a grout supply pipe (6).

6. The grouting device for cracks in building walls according to claim 5, characterized in that: The top outer wall of the grouting cylinder (4) and the bottom inner wall of the grouting head (9) are both provided with threads (7), and the two threads (7) are adapted to each other.

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