Brick wall mortar joint cleaning device

Abstract

The present application discloses a device for cleaning the mortar joints of brick walls, comprising two mounting frames arranged opposite to each other, wherein a winding roller is rotatably connected to the mounting frames, a motor for driving the winding roller to rotate is fixedly connected to the mounting frames by screws, a pull rope is wound and fixedly connected between the two winding rollers, a moving block is fixedly connected to the pull rope, when one winding roller is unwinding, the other winding roller is unwinding, a scraper is provided on the moving block, and a driving member for driving the scraper to be inserted into the mortar joints of the brick wall is provided on the moving block.

Description

Technical Field

[0001] The present application relates to the field of brick wall reinforcement, and in particular to a method for reinforcing brick wall mortar joints. Background Art

[0002] For some buildings with brick wall structures, after long-term use, the clay bricks can basically reach the strength of the original construction after evaluation, but the strength of the mortar used to connect the clay bricks will be greatly reduced, affecting the stability of the structure. Summary of the Invention

[0003] In order to improve the stability of brick wall structures, the present application provides a brick wall mortar joint reinforcement method.

[0004] This application provides a brick wall mortar joint reinforcement method, which adopts the following technical solutions:

[0005] A brick wall mortar joint reinforcement method comprises the following steps: step 1, using a tool to clean the old mortar outside the brick wall mortar joint to form a filling groove; step 2, filling the filling groove with new mortar.

[0006] By adopting the above technical solution, when in use, tool 1 is used to clean part of the old mortar on the outside of the mortar joint, and then new mortar is filled in. Since the mortar on the outside of the mortar joint is exposed to the external environment for a long time, the performance of the mortar on the outside of the mortar joint is easily reduced, while the performance of the mortar inside remains good. By cleaning part of the old mortar on the outside of the mortar joint and then filling it with new mortar, the strength of the brick wall can be improved. At the same time, if the old mortar in the mortar joint is not completely cleaned out, the overall safety of the brick wall can be guaranteed while the reinforcement degree of the brick wall is improved.

[0007] Optionally, the filling slot depth ranges from 10mm to 60mm.

[0008] By adopting the above technical solution, the mortar performance outside the mortar joints is easily reduced due to its long-term contact with the external environment. Experiments have shown that the angle of the mortar strength reduction is within the range of 10mm-60mm on the brick wall surface. Except for this range, the mortar strength in the remaining range can generally reach M2.5 or above. Therefore, there is no need to clean the mortar beyond this range, which can improve construction efficiency while ensuring the safety of the brick wall structure.

[0009] Optionally, the initial filling groove depth is based on 10 mm. Before step 2, the mortar strength of the filling groove away from the groove opening is tested. If the mortar strength is less than or equal to M2.5, the filling groove depth is increased.

[0010] By adopting the above technical solution, since the strength of the old mortar in the mortar joints gradually increases from the outside to the inside, by testing the mortar strength, it can be determined whether the strength of the mortar that has not been cleaned is higher than M2.5. This can comprehensively improve the reinforcement level of the brick wall while ensuring the overall safety of the brick wall.

[0011] Optionally, the depth of the filling slot is increased by 5 mm to 10 mm each time.

[0012] By adopting the above technical solution and controlling the incremental amount of the filling layer, it is possible to more comprehensively clean out old mortar with a strength less than M2.5 while ensuring the safety of the brick wall structure to a great extent.

[0013] Optionally, before step 1, the brick wall is divided into multiple areas; and the mortar joints of the brick wall in each area are reinforced one by one.

[0014] By adopting the above technical solution, since cleaning part of the mortar in the mortar joints will affect the stability of the overall structure of the brick wall, the brick wall is divided into multiple areas and each area is reinforced one by one, thereby avoiding the problem of cleaning too much mortar in the mortar joints of the brick wall, which will lead to a decrease in the safety of the overall structure of the brick wall and create safety hazards.

[0015] Optionally, there is a distance between the area and the door opening, the upper floor and the wing wall.

[0016] By adopting the above technical solution, the brick walls near the door openings, upper floor slabs and wing walls are subject to a large load due to the need to bear weight or structural changes. After the brick wall joints are reinforced, the brick wall strength will return to zero locally for a period of time, and the length of time depends on the time it takes for the new mortar strength to reach the standard. During this period, in order to ensure the safety of the brick wall, a distance will be reserved between the brick wall area where the joints are cleaned and the door openings, wing walls and upper floor slabs to avoid the brick wall area where the joints are cleaned extending to the door openings, wing walls and upper floor slabs, affecting the safety of the brick wall.

[0017] Optional, applied to both sides of the brick wall through its thickness.

[0018] By adopting the above technical solution, for some brick walls with both sides exposed to the external environment, the mortar strength on both sides of the brick wall joints will be reduced. By reinforcing both sides of the brick wall joints, the strength of the brick wall can be greatly improved.

[0019] Optionally, before step 2, clean the filling tank of debris.

[0020] By adopting the above technical solution, it is avoided that debris remains in the mortar joints and affects the performance of the new mortar after it is filled in later.

[0021] Optionally, the tool 1 includes a cleaning rod for inserting into the mortar joint.

[0022] By adopting the above technical solution, it is more convenient to use tool one to clean the mortar joints of the brick wall.

[0023] Optionally, a nut is sleeved on and threadedly connected to the cleaning rod and is used to abut against the outer wall of the brick wall.

[0024] By adopting the above technical solution, the nut is rotated and the position of the nut is adjusted, so that the length of the cleaning rod inserted into the mortar gap can be adjusted, and the depth of the filling groove can be controlled to meet the depth requirement of the filling groove.

[0025] In summary, this application has the following beneficial technical effects:

[0026] 1. This application can improve the strength of the brick wall by cleaning some of the old mortar outside the mortar joints and then filling them with new mortar. At the same time, the old mortar in the mortar joints is not completely cleaned out, which can improve the reinforcement of the brick wall while ensuring the overall safety of the brick wall.

[0027] 2. This application divides the brick wall into multiple areas and reinforces each area one by one, thus avoiding the risk of the overall structural safety of the brick wall being compromised due to excessive mortar cleaning in the brick wall joints.

[0028] 3. The present application can control the depth of the filling slot by adjusting the length of the cleaning rod inserted into the mortar joint to meet the depth requirements of the filling slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of a brick wall divided into multiple areas in a brick wall mortar joint reinforcement method in Example 1 of the present application. Figure 1 ;

[0030] Figure 2 This is a schematic diagram of the overall structure of a brick wall divided into multiple areas in a brick wall mortar joint reinforcement method in Example 1 of the present application. Figure 2 ;

[0031] Figure 3 This is a schematic diagram showing the spacing between wing walls and divided areas in a brick wall mortar joint reinforcement method in Example 1 of the present application;

[0032] Figure 4 This is a cross-sectional view of a brick wall in a method for reinforcing a mortar joint in a brick wall in Example 1 of the present application (mainly showing the filling groove);

[0033] Figure 5 This is a schematic diagram of the overall structure of Tool 1 in a brick wall mortar joint reinforcement method according to an embodiment of the present application;

[0034] Figure 6 This is a schematic diagram of the overall structure of Tool 2 in a brick wall mortar joint reinforcement method in Example 1 of the present application;

[0035] Figure 7 This is a schematic diagram of the overall structure of a crack cleaning device used in a brick wall mortar crack reinforcement method according to Example 2 of the present application;

[0036] Figure 8 yes Figure 7 A partial structural cross-sectional view;

[0037] Figure 9 yes Figure 7 A magnified schematic diagram of area A in the middle.

[0038] Description of reference numerals:

[0039] 1. Area; 2. Doorway; 3. Upper floor; 4. Wing wall; 5. Filling slot; 6. Cleaning rod; 7. Cleaning section; 8. Hand grip section; 9. Handle; 10. Nut; 11. Pressure plate; 12. Operating lever; 13. Mounting bracket; 14. Winding roller; 15. Motor 1; 16. Pull rope; 17. Moving block; 18. Scraper; 19. Movable rod; 20. Cylinder 1; 21. Sliding rod; 22. Cylinder 2; 23. Tightening screw; 24. Insert plate; 25. Sliding seat; 26. Screw; 2 7. Motor 2; 28. Fixing box; 29. ​​Collecting box; 30. Piston plate 1; 31. Piston rod 1; 32. Inflation groove 1; 33. Inflation port; 34. Inflation tube; 35. Air supply port; 36. One-way valve 1; 37. One-way valve 2; 38. Receiving groove; 39. Airbag; 40. Piston plate 2; 41. Inflation groove 2; 42. Piston rod 2; 43. Fixing block; 44. Yield groove; 45. Spring 1; 46. Spring 2; 47. Stopper; 48. Guide ring; 49. Block. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-9 This application is described in further detail.

[0041] Example 1;

[0042] The present application embodiment discloses a method for reinforcing the mortar joints of brick walls. Figure 1 and Figure 2 , the method comprises the following steps:

[0043] Step 1: Divide one side of the brick wall into multiple areas 1. The divided areas 1 and the door opening 2, upper floor 3 and wing wall 4 (such as Figure 3 ) are spaced apart (areas 1 can be divided by drawing lines or lines).

[0044] Step 2: Reference Figure 4 and Figure 5, use tool 1 to clean the old mortar outside the mortar joint of one area 1 to form a filling groove 5; since the mortar outside the mortar joint is exposed to the external environment for a long time, the mortar performance outside the mortar joint is easily reduced. After testing, since the mortar strength decreases most in the range of 10mm-60mm on the brick wall surface, the mortar strength in the rest of the range can generally reach M2.5 or above, which meets the mortar strength requirements. Therefore, the depth range of the filling groove 5 in this embodiment is 10mm-60mm.

[0045] During actual use, first use tool 1 to clean the mortar on the outside of the brick wall joint to form a 10mm filling groove 5. The upper and lower surfaces of the filling groove 5 are brick surfaces, and the side of the filling groove 5 away from the groove is the mortar surface. Test the mortar strength of the mortar surface. If the mortar strength of the mortar surface is less than or equal to M2.5, use tool 1 to continue cleaning the old mortar in the brick wall joint to increase the depth of the filling groove 5. The depth increment of the filling groove 5 each time is 5mm-10mm, and then continue to test the mortar strength of the mortar surface until the mortar strength of the mortar surface is greater than M2.5. Record the depth of the filling groove 5. According to the recorded depth of the filling groove 5, clean the old mortar in the brick wall joint in the reinforcement area 1 in turn; in this embodiment, the method for detecting the mortar strength of the mortar surface is the penetration method, and the detector used is a penetrometer.

[0046] Reference Figure 4 and Figure 5 The tool 1 used in step 2 includes a cleaning rod 6, which is L-shaped. The cleaning rod 6 includes a cleaning section 7 and a grip section 8. The cleaning section 7 and the grip section 8 are integrally formed. A handle 9 is sleeved and fixedly connected to the grip section 8. The cleaning section 7 is used to be inserted into the mortar joint. A scale is provided on the cleaning rod 6, and a nut 10 is sleeved and threadedly connected to the cleaning section 7. The nut 10 is used to abut against the outer wall of the brick wall. By rotating the nut 10, the distance between the cleaning section 7 and the mortar joint of the brick wall can be adjusted.

[0047] Step 3: Clean the debris in the filling tank 5. In this embodiment, the filling tank 5 is cleaned by flushing with water, which can clean the debris in the filling tank 5 on the one hand and moisten the filling tank 5 on the other hand.

[0048] Reference Figure 4 and Figure 6 , step 4, use tool 2 to fill the new mortar into the filling groove 5 to complete the reinforcement of the brick wall mortar joints until all the mortar joints in the area 1 are reinforced; the tool 2 used in this step includes a pressing plate 11 and an operating rod 12, the operating rod 12 is fixed on the pressing plate 11, the operating rod 12 is for the operator to hold, and the pressing plate 11 is used to press the new mortar into the filling groove 5; when in use, first place the new mortar on the pressing plate 11, and then use the operating rod 12 to press the new mortar into the filling groove 5.

[0049] In another embodiment, the second tool may also be a grouting device (using the principle of a syringe), the mortar is placed in the grouting device, and then the mortar is injected into the filling groove 5 through the grouting device.

[0050] Step 5: After the mortar in the brick wall joints of the previous area 1 is completely solidified and stabilized, continue to reinforce the brick wall joints of the next area 1.

[0051] Step 6: After all areas 1 on one side of the brick wall are reinforced, continue using the above steps 1-5 to reinforce the brick wall mortar joints on the other side of the brick wall.

[0052] The implementation principle of a brick wall mortar joint reinforcement method in Example 1 of the present application is: first, the brick wall is divided into multiple areas 1, and then a cleaning rod 6 is used to clean any brick wall mortar joint in one of the areas 1 to form a filling groove 5, and the mortar strength of the mortar surface in the filling groove 5 is detected by a penetrometer. If the mortar strength of the mortar surface is less than or equal to M2.5, the cleaning rod 6 is used to continue to clean the old mortar in the brick wall mortar joint to increase the depth of the filling groove 5. The depth increment of the filling groove 5 each time is 5mm-10mm, and then the mortar strength of the mortar surface is continued to be detected until the mortar strength of the mortar surface is greater than M2.5, and the depth of the filling groove 5 is recorded. According to the recorded depth of the filling groove 5, the old mortar in the brick wall mortar joints in the reinforced area 1 is cleaned in turn; then the filling groove 5 is cleaned by water flushing, and then new mortar is injected into the filling groove 5 to complete the brick wall mortar joint reinforcement of the area 1, and then the above steps are repeated to reinforce all areas 1.

[0053] Example 2;

[0054] The difference between this embodiment and the embodiment is that, referring to Figure 7 and Figure 8 When cleaning the filling joints, a joint cleaning device is used. The joint cleaning device includes two mounting frames 13 arranged opposite to each other. A winding roller 14 is rotatably connected to the mounting frame 13. A motor 15 for driving the winding roller 14 to rotate is fixedly connected to the mounting frame 13 by screws. A pull rope 16 is wound and fixedly connected between the two winding rollers 14. A moving block 17 is fixedly connected to the pull rope 16. When one winding roller 14 is unwound, the other winding roller 14 is unwound. A scraper 18 is provided on the moving block 17, and a driving member for driving the scraper 18 to insert into the mortar joint of the brick wall is provided on the moving block 17.

[0055] In this embodiment, the driving member is a cylinder 20.

[0056] In this embodiment, two pull ropes 16 are provided, and the moving block 17 is fixed on the two pull ropes 16 to ensure the stability of the moving block 17 .

[0057] When cleaning the mortar in the mortar joints of the brick wall, the mounting frame 13 is positioned at a suitable position, and then the cylinder is turned on to drive the scraper 18 to move, so that the scraper 18 is inserted into the mortar joints of the brick wall to a specified depth, and then the motor 15 is turned on to drive the pull rope 16 to move, and the mortar in the mortar joints of the brick wall can be cleaned.

[0058] In order to adjust the height of the scraper 18 to adapt to the different heights of the brick wall mortar joints, a slide 25 is slidably connected to the mounting frame 13 in the vertical direction, and the winding roller 14 is rotatably connected to the slide 25. The mounting frame 13 is provided with a driving component for driving the slide 25 to slide.

[0059] The driving assembly includes a second motor 27 and a screw rod 26. The screw rod 26 is rotatably connected to the mounting frame 13. The rotation axis and length direction of the screw rod 26 are both arranged in the vertical direction. The screw rod 26 is threaded through the slide 25. The second motor 27 is fixedly connected to the mounting frame 13 by screws. The output shaft of the second motor 27 is coaxially fixedly connected to the screw rod 26.

[0060] In addition, in order to ensure the stability of the pull rope 16, two guide rings 48 are fixedly connected to the slide 25, through which the two pull ropes 16 pass respectively.

[0061] In order to facilitate the removal of mortar in the mortar joints of brick walls in blocks so as to maintain the mortar and test the mortar performance, a movable rod 19 is provided on the movable block 17. The length direction of the movable rod 19 is horizontally arranged and perpendicular to the length direction of the pull rope 16. The movable block 17 is fixedly connected to a cylinder 22 by screws. The length direction of the cylinder 22 is arranged along the direction in which the movable rod 19 is inserted. The telescopic end of the cylinder 22 is fixedly connected to the movable rod 19. A sliding rod 21 is provided on the movable rod 19. The length direction of the sliding rod 21 is arranged along the length direction of the pull rope 16. A tightening screw 23 for abutting the outer wall of the sliding rod 21 is threaded on the movable rod 19. Cylinder 1 20 is fixedly connected to the sliding rod 21 by screws. The length direction of the cylinder 1 20 is arranged along the length direction of the movable rod 19. The scraper 18 is fixedly connected to the telescopic end of the cylinder 1 20, and the length direction of the scraper 18 is arranged along the length direction of the movable rod 19.

[0062] The movable rod 19 is away from the side of the cylinder and is fixedly connected with an inserting plate 24. The length direction of the inserting plate 24 is arranged along the length direction of the sliding rod 21. The inserting plate 24 is used to be inserted into the mortar joint of the brick wall. The inserting plate 24 is arranged between the scraper 18 and the movable rod 19.

[0063] During use, the scraper 18 is first driven by the cylinder 1 20 to be inserted into the mortar joint of the brick wall, and then the movable block 17 is moved to scrape off part of the mortar in the mortar joint of the brick wall to form a filling groove 5; when it is necessary to collect the lumped mortar, a part of the filling groove 5 is first opened in the mortar joint of the brick wall by the scraper 18, and then the scraper 18 is moved back to between the plug plate 24 and the movable block 17 by the cylinder 1 20, and then the movable rod 19 is inserted into the filling groove 5 by the cylinder 2 22, and then the movable block 17 is moved to insert the plug plate 24 into the mortar joint of the brick wall, and then the cylinder 1 20 is opened to insert the scraper 18 into the mortar joint of the brick wall until the scraper 18 abuts the plug plate 24, and then the movable rod 19 is pulled outward by the cylinder 2 22 to pull out the lumped mortar.

[0064] In this embodiment, referring to Figure 8 and Figure 9 In order to prevent the mortar blocks from falling to the ground when the mortar blocks are pulled out, a fixed box 28 is fixedly connected to the moving block 17. The length direction of the fixed box 28 is arranged along the sliding direction of the moving block 17. A collecting box 29 is inserted into one end of the fixed box 28, and the collecting box 29 and the fixed box 28 are sealed. The collecting box 29 is located below the movable rod 19. The movable rod 19 is provided with a transmission member. The transmission member is used to move the collecting box 29 toward the scraper 18 when the movable rod 19 moves close to the moving block 17 to receive the mortar blocks brought out by the plug-in plate 24.

[0065] The transmission part includes a piston plate 30, and an inflation groove 32 is provided in the movable block 17. The piston plate 30 is slidably connected to the inflation groove 32 along the sliding direction of the movable rod 19, and a sealing arrangement is provided between the piston plate 30 and the inflation groove 32. A piston rod 31 is fixedly connected to the piston plate 30, and the piston rod 31 is connected to the movable rod 19. An inflation port 33 is provided on a side wall of the inflation groove 32 away from the piston plate 30. An inflation tube 34 is connected to the end of the fixed box 28 away from the collecting box 29, and the end of the inflation tube 34 away from the fixed box 28 is connected to the inflation port 33 and is threadedly connected.

[0066] In order to prevent the collecting box 29 from being inserted into the fixed box 28 when the movable rod 19 moves away from the moving block 17, an air supply port 35 is opened on the side wall of the inflation groove 32, and a one-way valve 36 is installed in the air supply port 35. The one-way valve 36 is used to allow external air to enter the inflation groove 32 and limit the gas in the inflation groove 32 from flowing to the outside; in addition, a one-way valve 37 is installed in the inflation port 33. The one-way valve 37 is used to allow the gas in the inflation groove 32 to flow into the fixed box 28 and limit the gas in the fixed box 28 from flowing into the inflation groove 32.

[0067] In the embodiment, in order to prevent the lump mortar from falling when it moves to the top of the collecting box 29 when the lump mortar is pulled out, a receiving groove 38 is provided on the side of the movable rod 19 close to the scraper 18, and an airbag 39 is fixedly connected to the receiving groove 38. An inflation mechanism for inflating the airbag 39 is provided on the movable rod 19, and the inflation mechanism is used to inflate the airbag 39 when the plug plate 24 moves toward the movable block 17.

[0068] The inflation mechanism includes a piston plate 240, an inflation groove 241 is provided at one end of the movable rod 19 near the plug plate 24, the inflation groove 241 is connected to the airbag 39, the piston plate 240 is slidably connected to the inflation groove 241 along the sliding direction of the movable rod 19, and a seal is provided between the piston plate 240 and the inflation groove 241, a piston rod 242 is fixedly connected to the piston plate 240, and the other end of the piston rod 242 passes through the movable rod 19 and is fixedly connected to a fixed block 43, a lower surface of the fixed block 43 is provided with a clearance groove 44, and a spring 1 45 is fixedly connected to the clearance groove 44 along its own depth direction. The other end of spring 1 45 is fixedly connected to a block 49. When spring 1 45 is not deformed, part of the block 49 is stuck in the make way groove 44 and the part of the block 49 outside the make way groove 44 is an arc-shaped convex surface away from the moving block 17; a plurality of blocks 47 are fixedly connected at intervals on the upper surface of the collecting box 29 close to the moving block 17, and the gap between two adjacent blocks 47 is for the block 49 to pass through; a spring 2 46 is fixedly connected in the inflation groove 2 41, and the length direction of the spring 2 46 is arranged along the sliding direction of the piston plate 2 40, and the other end of the spring 2 46 is fixedly connected to the piston plate 2 40.

[0069] The implementation principle of a brick wall mortar joint reinforcement method according to an embodiment of the present application is as follows: when cleaning the mortar of the brick wall mortar joint, first place the two mounting frames 13 in the area to be cleaned 1, and stabilize the mounting frames 13, adjust the height of the slide 25 by the driving assembly, and then adjust the position of the movable rod 19 and position it by the tightening screw 23, so that the scraper 18 and the inserting plate 24 are abutted away from one end of the movable rod 19, and then extend the scraper 18 to the outside of the inserting plate 24 and insert it into the brick wall mortar joint by the cylinder 1 20, and then move the moving block 17 to open a part of the filling groove 5 in the brick wall mortar joint, and then move the scraper 18 toward the moving block 17 by the cylinder 1 20, so that the scraper 18 The reset is against the end of the plug plate 24 away from the movable rod 19, and then the cylinder 22 is turned on to insert the plug plate 24 into the partially filled groove 5. In this process, the card block 49 is reset under the action of the spring 1 45 after passing the stopper 47 due to the setting of its own arc-shaped convex surface, and at this time, the side of the card block 49 close to the moving block 17 is abutted on the stopper 47, and then the moving block 17 is moved again to insert the plug plate 24 into the brick wall mortar joint, and then the cylinder 1 20 is turned on to insert the scraper 18 into the brick wall mortar joint until the scraper 18 abuts the plug plate 24. At this time, a U-shaped structure is formed between the scraper 18, the plug plate 24 and the movable rod 19, and the mortar blocks are in the U-shaped structure. , then open the second cylinder 22 to make the plug plate 24 separate from the brick wall mortar joint. During this process, the piston plate 1 30 moves with the movable rod 19, inflating the fixed box 28, and the collecting box 29 moves out of the fixed box 28 to receive the block mortar brought out by the plug plate 24; at the same time, when the movable rod 19 moves, since the block 47 abuts the block 49, the piston rod 2 42 pushes the piston plate 2 40 to move, inflating the airbag 39, and the airbag 39 expands and clamps the block mortar. When the movable rod 19 moves to the top of the collecting box 29, the collecting box 29 moves until the block 49 is located between the two blocks 47. At this time, the block 49 is no longer blocked. Under the action of the second spring 46, the piston plate 2 40 After the reset, the airbag 39 is deflated, and the mortar blocks fall into the collecting box 29; when continuing to take out the mortar blocks, the cylinder 22 drives the movable rod 19 to continue to enter the filling tank 5, and the above operations are repeated; it is worth noting that in the process of continuing to take out the mortar, the cylinder 22 drives the movable rod 19 to move toward the filling tank 5. At this time, the block 49 can pass through the gap between the two blocks 47, and with the cooperation of the one-way valve 1 36 and the one-way valve 2 37, the piston rod 1 31 is reset, and the fixed box 28 will not be inflated, and the collecting box 29 will not move. Only when the insert plate 24 moves toward the downward moving block 17, the collecting box 29 will move out of the fixed box 28 to receive the mortar blocks.

[0070] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A brick wall mortar joint cleaning device, comprising two mounting frames (13) arranged opposite to each other, characterized in that: A winding roller (14) is rotatably connected to the mounting frame (13), and a motor (15) for driving the winding roller (14) to rotate is fixedly connected to the mounting frame (13) by screws. A pull rope (16) is wound and fixedly connected between the two winding rollers (14), and a moving block (17) is fixedly connected to the pull rope (16). When one winding roller (14) is unwound, the other winding roller (14) is unwound. A scraper (18) is provided on the moving block (17), and a driving member for driving the scraper (18) to insert into the mortar joint of the brick wall is provided on the moving block (17); a movable rod (19) is passed through the moving block (17), and the length direction of the movable rod (19) is arranged horizontally and perpendicular to the length direction of the pull rope (16); a second cylinder (22) is fixedly connected to the moving block (17), and the length direction of the second cylinder (22) is arranged along the direction in which the movable rod (19) is passed through, and the telescopic end of the second cylinder (22) is fixedly connected to the moving block (17). The movable rod (19) is fixedly connected to the movable rod (19), a sliding rod (21) is passed through the movable rod (19), and the length direction of the sliding rod (21) is arranged along the length direction of the pull rope (16). The movable rod (19) is threadedly connected with a tightening screw (23) for abutting against the outer wall of the sliding rod (21). The cylinder (20) is fixedly connected to the sliding rod (21), and the length direction of the cylinder (20) is arranged along the length direction of the movable rod (19). The scraper (18) is fixedly connected to the telescopic end of the cylinder (20), and the length direction of the scraper (18) is arranged along the length direction of the movable rod (19); the movable rod (19) is away from the side of the cylinder (22) and fixedly connected with a plug plate (24), and the length direction of the plug plate (24) is arranged along the length direction of the sliding rod (21). The plug plate (24) is used to be inserted into the mortar joint of the brick wall, and the plug plate (24) is arranged between the scraper plate (18) and the movable rod (19).

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