Wall Crack Repair Device and Repair Method

Abstract

This invention belongs to the field of wall crack repair technology and discloses a wall crack repair device and method. The repair device includes two rollers located on opposite sides of the nozzle and rotatably connected to a feed pipe. The rotation axes of the two rollers are perpendicular to the axis of the feed pipe, and the net distance between the two rollers is not less than the width of the crack. This ensures that when the two rollers are attached to the wall surface on both sides of the crack and move along the crack's extension direction, the nozzle remains aligned with the crack. By using two rollers, the device moves along the wall surface on both sides of the crack during use. The rollers' contact with the wall surface reduces the risk of instability caused by hand tremors, allowing the user to stably control the nozzle to consistently spray repair material into the crack along its extension direction. This reduces the probability of nozzle deviation from the crack, improving repair quality and efficiency.

Description

Technical Field

[0001] This invention belongs to the field of wall crack repair technology, and specifically relates to a wall crack repair device and repair method. Background Technology

[0002] As is well known, building construction refers to the production activities during the implementation phase of an engineering project. It is the process of building various types of structures, or the process of turning the lines on design drawings into physical objects at designated locations. It includes foundation construction, main structure construction, roofing construction, and decoration construction. The site where construction work takes place is called a "construction site" or "building site." Wall cracks are cracks that occur in the wall components of a building structure. Depending on the material, they can be categorized as concrete wall cracks, brick wall cracks, cracks in new partition walls, and cracks caused by walls made of different materials.

[0003] Existing wall spraying repair tools rely solely on the user's hand and lifting to bear the weight of the entire repair tool. This often leads to user exhaustion and hand tremors, making it difficult to stably control the spray nozzle to move along the wall crack for repair. This can easily result in deviation between the spray nozzle and the wall crack, thus reducing repair quality and efficiency. Therefore, we propose a wall crack repair device and repair method to solve the above problems. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a wall crack repair device and method, which solves the problem of relying solely on the user to hold and stably control the spray nozzle to move along the crack location on the wall for repair.

[0005] The present invention is achieved through the following scheme: a wall crack repair device, comprising a material conveying pipe and a nozzle, wherein the nozzle is installed at the outlet of the material conveying pipe and is used to spray out the repair material in the material conveying pipe; the repair device further comprises two rollers located on opposite sides of the nozzle and rotatably connected to the material conveying pipe, wherein the rotation axes of the two rollers are perpendicular to the axial direction of the material conveying pipe, and the net distance between the two rollers is not less than the width of the crack, so that when the two rollers are respectively attached to the wall surface on both sides of the crack and move along the extension direction of the crack, the nozzle can remain aligned with the crack.

[0006] A further improvement of the wall crack repair device of the present invention is that two fixing rings are fixedly sleeved at intervals along the axial direction on the material conveying pipe, and an annular groove is formed between the two fixing rings. A frame is movably sleeved on the outside of the fixing rings, which is at least partially inserted into the annular groove and slides in cooperation with the annular groove. The two rollers are rotatably connected to both sides of the frame. By rotating the frame, the direction of movement of the two rollers along the wall surface can be adjusted. The repair device also includes a fastening assembly for locking the frame to prevent it from sliding along the annular groove.

[0007] A further improvement of the wall crack repair device of the present invention is that the fastening component includes a screw hole and a bolt. The screw hole passes through one of the two fixing rings and communicates with the annular groove. By screwing the bolt into the screw hole and pressing it against the part of the frame inserted into the annular groove, the frame and the fixing ring are fixed.

[0008] A further improvement of the wall crack repair device of the present invention is that anti-slip pads are fixedly connected to the wheel surfaces of both rollers.

[0009] A further improvement of the wall crack repair device of the present invention is that it also includes a handle, which is fixedly connected to the end of the feed pipe away from the nozzle.

[0010] A further improvement of the wall crack repair device of the present invention is that it also includes a material conveying mechanism connected to one end of the material conveying pipe near the nozzle, for conveying repair material into the material conveying pipe.

[0011] A further improvement of the wall crack repair device of the present invention is that the size of the nozzle satisfies the following condition: when the two rollers are respectively attached to the wall surface on both sides of the crack, the nozzle extends into the crack.

[0012] A method for repairing wall cracks, implemented using the wall crack repair device described above, includes the following steps: S1. Control the two rollers to stick to the wall on both sides of the crack, so that the nozzle is aligned with the crack; S2. Push the material delivery pipe along the direction of the crack extension and keep the nozzle aligned with the crack, while controlling the nozzle to spray the repair material into the crack to achieve repair.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention features two rollers that move along the walls on both sides of the crack during use. By keeping the rollers in contact with the wall, the risk of instability caused by hand tremors can be reduced. This allows the user to stably control the nozzle to consistently spray the repair material into the crack along its extension direction, reducing the probability of deviation between the nozzle and the crack and improving repair quality and efficiency. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of the present invention is shown.

[0015] Figure 2 A schematic diagram of the location of the annular groove of the present invention is shown.

[0016] Figure 3The present invention is shown. Figure 2 Enlarged diagram of point A in the middle.

[0017] In the diagram: 1. Feed pipe; 2. Nozzle; 3. Feeding mechanism; 4. Handle; 5. Frame; 6. Roller; 7. Fixed ring; 8. Annular groove; 9. Movable groove; 10. Bolt. Detailed Implementation

[0018] To address the problem of unstable and unreliable manual control of the spray nozzle for mobile repair of wall cracks, this invention provides a wall crack repair device and method. The following detailed description, in conjunction with accompanying drawings, illustrates this wall crack repair device and method.

[0019] See Figures 1-3 As shown, a wall crack repair device includes a material delivery pipe 1 and a nozzle 2. The nozzle 2 is installed at the outlet of the material delivery pipe 1 and is used to spray out the repair material in the material delivery pipe 1. The repair device also includes two rollers 6 located on opposite sides of the nozzle 2 and rotatably connected to the material delivery pipe 1, and the rotation axes of the two rollers 6 are perpendicular to the axial direction of the material delivery pipe 1. The net distance between the two rollers 6 is not less than the width of the crack, so that when the two rollers 6 are respectively attached to the wall surface on both sides of the crack and move along the extension direction of the crack, the nozzle 2 can remain aligned with the crack.

[0020] By setting two rollers 6, the device can move along the walls on both sides of the crack during use. Relying on the rollers 6 to stick to the wall reduces the risk of the repair device becoming unstable due to hand tremors. This allows the user to stably control the nozzle 2 to always move and spray the repair material into the crack along the direction of the crack's extension, reducing the probability of the nozzle 2 deviating from the crack and improving the repair quality and efficiency.

[0021] Among them, see Figure 2 The material conveying pipe 1 is provided with two fixed rings 7 spaced apart along the axial direction, and an annular groove 8 is formed between the two fixed rings 7. The fixed rings 7 are movably fitted with a frame 5 that is at least partially inserted into the annular groove 8 and slides in cooperation with the annular groove 8. The two rollers 6 are rotatably connected to both sides of the frame 5. By rotating the frame 5, the direction of movement of the two rollers 6 along the wall can be adjusted. The repair device also includes a fastening assembly for locking the frame 5 to prevent the frame 5 from sliding along the annular groove 8.

[0022] By adopting the above design, the frame 5 can be rotated to adjust the position of the rollers 6 on both sides of the crack. Then, the fastening assembly is used to lock the frame 5 to prevent it from sliding along the annular groove 8. When moving, the operator can slightly move the entire device by bending their wrist to deflect it at an appropriate angle, so that the direction of movement of the two rollers 6 along the wall matches the extension direction of the crack. This allows the user to stably control the nozzle 2 to always move and spray the repair material into the crack along the extension direction of the crack (the extension direction of the crack targeted by this application is close to a straight line).

[0023] Further, see Figure 2 As shown, both sides of the frame 5 are fixedly connected to horizontal plates, and the horizontal plates are provided with movable grooves 9, and the rollers 6 are rotatably connected to the movable grooves 9.

[0024] Among them, see Figure 3 As shown, the fastening assembly includes a screw hole and a bolt 10. The screw hole passes through one of the two fixing rings 7 and extends into the annular groove 8. By screwing the bolt 10 into the screw hole and pressing it against the part of the frame 5 inserted into the annular groove 8, the frame 5 and the fixing ring 7 are fixed.

[0025] By adopting the above design, the bolt 10 is used for fastening and fixing, which facilitates control during adjustment.

[0026] Anti-slip pads are fixedly connected to the surfaces of both rollers 6.

[0027] Furthermore, the anti-slip mat is made of rubber.

[0028] By adopting the above design, the anti-slip pad made of rubber can increase the friction between the roller 6 and the wall, thus preventing the roller 6 from slipping when moving along the wall.

[0029] It also includes a handle 4, which is fixedly connected to the end of the feed pipe 1 away from the nozzle 2.

[0030] The entire repair device can be easily moved along the wall by holding handle 4.

[0031] It also includes a material conveying mechanism 3, which is connected to one end of the material conveying pipe 1 near the nozzle 2, and is used to convey repair material into the material conveying pipe 1.

[0032] By adopting the above design, the material conveying mechanism 3 can fill the material conveying pipe 1 with repair material in a timely manner, avoiding the situation where there is a lack of repair material in the material conveying pipe 1 when the crack is being repaired by moving.

[0033] The size of the nozzle 2 is such that when the two rollers 6 are respectively attached to the wall on both sides of the crack, the nozzle 2 extends into the crack.

[0034] By adopting the above design, the two rollers 6 can be moved along the wall on both sides of the crack, ensuring that the nozzle 2 always faces the crack. By extending the tip of the nozzle 2 into the crack, it is possible to prevent the nozzle 2 from falling out of the crack when there is hand tremor, thus further improving the repair quality.

[0035] A method for repairing wall cracks, implemented using the wall crack repair device described above, includes the following steps: S1. Control the two rollers 6 to stick to the wall on both sides of the crack, so that the nozzle 2 is aligned with the crack; S2. Push the material conveying pipe 1 to move along the direction of the crack extension, so that the nozzle 2 can be kept aligned with the crack, and at the same time control the nozzle 2 to spray the repair material into the crack to achieve repair.

[0036] 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.

[0037] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A wall crack repair device, comprising a conveying pipe and a nozzle, wherein the nozzle is installed at the outlet of the conveying pipe and is used to spray repair material from the conveying pipe, characterized in that, The repair device also includes two rollers located on opposite sides of the nozzle and rotatably connected to the feed pipe, with the rotation axes of the two rollers perpendicular to the axis of the feed pipe. The net distance between the two rollers is not less than the width of the crack, so that when the two rollers are respectively attached to the wall on both sides of the crack and move along the direction of the crack extension, the nozzle can remain aligned with the crack.

2. The wall crack repair device as described in claim 1, characterized in that, Two fixed rings are fixedly fitted along the axial direction on the conveying pipe, and an annular groove is formed between the two fixed rings. A frame is movably fitted on the outside of the fixed rings, which is at least partially inserted into the annular groove and slides in cooperation with the annular groove. The two rollers are rotatably connected to both sides of the frame. By rotating the frame, the direction of movement of the two rollers along the wall can be adjusted. The repair device also includes a fastening assembly for locking the frame to prevent it from sliding along the annular groove.

3. The wall crack repair device as described in claim 2, characterized in that, The fastening assembly includes a screw hole and a bolt. The screw hole passes through one of the two fixing rings and communicates with the annular groove. By screwing the bolt into the screw hole and pressing it against the part of the frame that is inserted into the annular groove, the frame and the fixing ring are fixed together.

4. The wall crack repair device as described in claim 1, characterized in that, Anti-slip pads are fixedly connected to the surfaces of both rollers.

5. The wall crack repair device as described in claim 1, characterized in that, It also includes a handle, which is fixedly connected to the end of the feed pipe away from the nozzle.

6. The wall crack repair device as described in claim 1, characterized in that, It also includes a material conveying mechanism, which is connected to the end of the material conveying pipe near the nozzle, and is used to convey repair material into the material conveying pipe.

7. The wall crack repair device as described in claim 1, characterized in that, The nozzle is sized such that when the two rollers are respectively attached to the walls on both sides of the crack, the nozzle extends into the crack.

8. A method for repairing wall cracks, implemented using the wall crack repair device as described in claim 1, characterized in that, Includes the following steps: S1. Control the two rollers to stick to the wall on both sides of the crack, so that the nozzle is aligned with the crack; S2. Push the material delivery pipe along the direction of the crack extension and keep the nozzle aligned with the crack, while controlling the nozzle to spray the repair material into the crack to achieve repair.

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