A wall leveling device for building construction

Abstract

The application discloses a wall surface leveling device for building construction and relates to the technical field of building construction, which comprises two groups of symmetrically arranged inner discs, the two groups of inner discs are hingedly connected, the two groups of inner discs are semicircular in structure, a first spring is fixedly connected between the two groups of inner discs, a repairing mechanism for extruding mortar is arranged in the inner disc, the outer walls of the two groups of inner discs are fixedly provided with symmetric outer discs, the outer walls of the two groups of inner discs and outer discs are provided with symmetric inclined surfaces, the inner part of the outer disc is provided with a dust cleaning mechanism, and the outer walls of the two groups of outer discs are fixedly provided with two groups of symmetric fixing plates. When the wall surface is moved and polished, the dust cleaning mechanism and the repairing mechanism can be used to clean the pits on the wall surface and then automatically repair the pits. The device can be folded to level two wall surfaces located at the corner of the wall surface. When another wall surface is leveled, the leveling area can be reduced, and the wall surface leveling efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a wall leveling device for building construction. Background Technology

[0002] Construction refers to the production activities during the implementation phase of a project, encompassing the construction process of various buildings. When decorating the interior of a house, concrete mortar is typically applied to the walls. After the concrete mortar dries, some areas of the wall will have an uneven mortar layer, often requiring leveling. During this leveling process, grinding equipment is used to grind down any protruding mortar blocks, making the mortar layer smooth and even. Once the wall is leveled, any pits or depressions are repaired and smoothed out. Only after this leveling process can subsequent decorative work be carried out on the wall.

[0003] For example, a wall leveling device for building construction, with publication number CN218254247U and authorization announcement date of January 10, 2023, includes a plate. A first handle is fixed to one side of the top of the plate, and an auxiliary structure is provided at the top of the first handle. A protective cover is fixed to the middle of the top of the plate, and a motor is installed inside the protective cover. A heat dissipation structure is provided at the top of the protective cover. A connecting groove is provided at the bottom of the rotating shaft, and a threaded rod passes through the connecting groove. A threaded cap is provided at one end of the threaded rod. This utility model, through a disassembly and assembly structure, uses a groove inside a pre-drilled hole. A protrusion on one side of a fixing block is inserted into the groove inside the pre-drilled hole, causing the grinding disc to swing left and right and be fixed within the pre-drilled hole. Then, the threaded rod passes through the connecting groove through the bottom of the fixing block and the rotating shaft. Tightening the threaded cap fixes the threaded rod, enabling the disassembly and replacement of the grinding disc while ensuring a stable fixation, facilitating grinding of the wall surface.

[0004] The following problems still exist in the existing technology:

[0005] (1) When using the above-mentioned grinding equipment to level the wall surface, only the raised parts of the wall surface can be ground flat. However, for the more obvious pits on the wall surface, manual search and repair are required, which is more troublesome and the leveling efficiency is low.

[0006] (2) A lot of dust will be generated during the grinding process, so when repairing the pits on the wall surface, a lot of dust will remain in the pits. When filling the pits with mortar, the dust in the pits will easily reduce the adhesion of the mortar. If the dust is severe, the mortar filling the pits will fall off. Summary of the Invention

[0007] The present invention addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different solution. Specifically, the present invention aims to provide a wall leveling device for building construction, thereby solving the problem mentioned in the background art where grinding equipment can only smooth the raised parts of the wall surface, while more obvious pits on the wall surface need to be manually located and repaired, which is cumbersome and inefficient.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a wall leveling device for building construction, comprising two sets of symmetrically arranged inner discs, the two sets of inner discs being hinged together, and the two sets of inner discs having a semi-circular structure, and a first spring fixedly connected between the two sets of inner discs, wherein a repair mechanism for squeezing out mortar is provided inside the inner discs, and symmetrical outer discs are fixedly provided on the outer walls of the two sets of inner discs, and symmetrical inclined surfaces are provided on the outer walls of the two sets of inner discs and outer discs, wherein a dust removal mechanism is provided inside each of the outer discs, and two sets of symmetrical fixing plates are fixedly provided on the outer walls of the two sets of outer discs, and a grinding mechanism for grinding the wall surface is provided on the outer walls of each fixing plate.

[0009] Preferably, the repair mechanism includes a first inner groove formed inside the inner disk, the bottom of the first inner groove extending through the bottom of the inner disk, a discharge plate being bolted to the bottom of the inner disk at the bottom of the first inner groove, discharge holes being evenly distributed inside the discharge plate, a first piston plate being provided at the upper end of the first inner groove and slidingly engaging therewith, a first connecting post being fixedly connected to the top of the first piston plate and penetrating the top of the inner disk, a first pressure plate being fixedly connected to the top of the first connecting post, a second spring being fixedly connected between the first pressure plate and the inner disk at the outside of the first connecting post, a telescopic rod being fixedly connected to the top of the first pressure plate, a second pressure plate being fixedly connected to the top of the telescopic rod, and a third spring being fixedly connected between the first pressure plate and the second pressure plate at the outside of the telescopic rod.

[0010] Preferably, the outer wall of the first piston plate is provided with a sealing strip that fits against the inner wall of the first inner groove, and the top of the inner plate is provided with a first groove outside the first connecting post, the inner diameter of the first groove being larger than the diameter of the first connecting post.

[0011] Preferably, the dust removal mechanism includes a second inner groove formed inside the outer disk, and both ends of the bottom of the second inner groove extend towards both ends of the outer disk. The outer disk has air jets at equal intervals at its bottom outer side that communicate with the second inner groove. The second inner groove has suction pipes at equal intervals corresponding to the air jets inside the second inner groove. Both ends of the suction pipes extend to the outer wall of the second inner groove. The upper end of the second inner groove is provided with a second piston plate that slides with it, and the second piston plate slides with the suction pipe. The top end of the second piston plate is fixedly connected to a second connecting post that penetrates the top of the first pressure plate. The top end of the second connecting post is fixedly connected to the bottom of the second pressure plate. The lower outer wall of the outer disk is provided with a venting assembly.

[0012] Preferably, the outer wall of the second piston plate is provided with a sealing strip that fits against the inner wall of the second inner groove, and the top of the outer plate is provided with a second groove outside the second connecting post, the inner diameter of the second groove being larger than the diameter of the second connecting post.

[0013] Preferably, the venting assembly includes a cylinder fixedly mounted on the lower outer wall of the outer disc. One end of the cylinder located in the second inner groove is configured as an open structure, and a fourth spring is fixedly connected to the inner wall of the other end of the cylinder. The other end of the fourth spring is fixedly connected to a piston block that slides with the inner wall of the cylinder. The outer wall of the piston block is provided with a sealing ring that fits against the inner wall of the cylinder, and a venting hole is provided on the outer wall of the cylinder at the bottom of the piston block.

[0014] Preferably, the grinding mechanism includes rotating shafts rotatably connected to the fixed plate at equal intervals. A grinding disc is fixedly connected to the bottom of each rotating shaft. The bottom surfaces of the grinding disc, inner disc, and outer disc are all located on the same horizontal plane. A limiting block is fixedly connected to the top of each rotating shaft. A belt is sleeved on the outer wall of two adjacent sets of rotating shafts. A motor is fixedly installed on the top of the fixed plate. The output end of the motor is fixedly connected to a set of the limiting blocks. A rotating roller is rotatably connected to the top of the fixed plate on the outer wall of each set of belts.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] (1) When moving the device, a certain pressure is always applied to push the second pressure plate. The second pressure plate pushes the second connecting column to drive the second piston plate to slide slowly in the second inner groove. The second piston plate slides on the outer wall of the suction pipe. The second pressure plate pushes the telescopic rod to extend and retract and squeeze the third spring. The air pressure in the second inner groove is increased under the pressure of the second piston plate. The increased gas pressure pushes the piston block in the air pipe to slide and squeeze the fourth spring. At this time, the vent hole is opened and the gas is released through the vent hole to balance the air pressure in the second inner groove. When passing through the pit during the movement, the jet nozzle and the suction pipe will move to the pit first. The jet nozzle located at the pit will open and the air will be sprayed out of the pit through the jet nozzle. The piston block slides back to block the vent hole under the action of the fourth spring. After the sprayed gas fills the pit, the excess air is blown out through the suction pipe. At the same time as blowing out the air, the dust in the pit can be sprayed out through the suction pipe. As the device moves, the pits on the wall can be cleaned first during the movement to avoid the dust in the pit reducing the adhesion of the mortar during the repair process.

[0017] (2) As the device moves, after the jet nozzle moves and cleans the pit, the discharge hole of the discharge plate will immediately move to the pit. Since the elastic force of the second spring is less than that of the third spring, the reaction force of the third spring plus the applied thrust can push the first pressure plate down and drive the first piston plate to slide down at the upper end of the first inner groove and squeeze the second spring. The mortar inside the first inner groove is squeezed out through the discharge hole at the pit. As the mortar in the pit is filled, the mortar in the pit can be smoothed by the movement of the discharge plate. At the same time, the discharge hole is closed again and the first piston plate cannot move. Thus, as the device moves on the wall, it can automatically repair and level the pit after cleaning, improving the leveling effect.

[0018] (3) When leveling the wall edge, the two sets of second pressure plates can be pulled closer to each other, so that the two sets of inner plates rotate and fold and squeeze the first spring. The inner plates drive the outer plates and the fixed plates to move synchronously. At this time, the folded inner plates fit the angle between the walls. Similarly, when the device is moved longitudinally, it can grind the two walls located at the wall angle and automatically repair them after cleaning. So when leveling another wall, the leveling area can be reduced and the leveling efficiency of the wall can be improved. Attached Figure Description

[0019] Figure 1 This is a frontal cross-sectional view of the present invention.

[0020] Figure 2 This is a bottom-view structural diagram of the present invention;

[0021] Figure 3 For the present invention Figure 1 Enlarged view of point A in the image;

[0022] Figure 4 This is a top view cross-sectional structural diagram of the outer disk of the present invention;

[0023] Figure 5 This is a three-dimensional structural schematic diagram of the second piston plate of the present invention;

[0024] Figure 6 This is a cross-sectional structural diagram of the venting component of the present invention;

[0025] Figure 7 This is a top view of the fixing plate of the present invention;

[0026] Figure 8 This is a partial side view of the fixing plate of the present invention.

[0027] In the diagram: 1. Inner disc; 11. First spring; 12. First inner groove; 13. Discharge plate; 14. Discharge hole; 15. First piston plate; 16. First connecting column; 17. First pressure plate; 18. Second spring; 19. Telescopic rod; 110. Second pressure plate; 111. Third spring; 2. Outer disc; 21. Second inner groove; 22. Air nozzle; 23. Suction pipe; 24. Second piston plate; 25. Second connecting column; 26. Cylinder; 27. Fourth spring; 28. Piston block; 29. ​​Vent hole; 3. Fixing plate; 31. Rotating shaft; 32. Grinding disc; 33. Limiting block; 34. Belt; 35. Motor. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1-8 The present invention provides a technical solution: a wall leveling device for building construction, comprising two sets of symmetrically arranged inner discs 1, the two sets of inner discs 1 are hinged together, and the two sets of inner discs 1 are semi-circular structures, and a first spring 11 is fixedly connected between the two sets of inner discs 1. The interior of the inner discs 1 is provided with a repair mechanism for squeezing out mortar. The outer walls of the two sets of inner discs 1 are fixedly provided with symmetrical outer discs 2. The outer walls of the two sets of inner discs 1 and outer discs 2 are provided with symmetrical inclined surfaces. The interior of each outer disc 2 is provided with a dust removal mechanism. The outer walls of the two sets of outer discs 2 are fixedly provided with two sets of symmetrical fixing plates 3. The outer walls of each fixing plate 3 are provided with a grinding mechanism for grinding the wall surface.

[0030] The repair mechanism includes a first inner groove 12 inside the inner plate 1. The bottom of the first inner groove 12 extends through the bottom of the inner plate 1. A discharge plate 13 is bolted to the bottom of the inner plate 1 at the bottom of the first inner groove 12. Discharge holes 14 are evenly distributed inside the discharge plate 13. A first piston plate 15 is provided at the upper end of the first inner groove 12 and slides therewith. A first connecting post 16 is fixedly connected to the top of the first piston plate 15, penetrating the top of the inner plate 1. A first pressure plate 17 is fixedly connected to the top of the first connecting post 16. A second spring 18 is fixedly connected between the first pressure plate 17 and the inner plate 1, located outside the first connecting post 16. A telescopic rod 19 is fixedly connected to the top of the first pressure plate 17. A second pressure plate 110 is fixedly connected to the top of the telescopic rod 19. A third spring 111 is fixedly connected between the first pressure plate 17 and the second pressure plate 110, located outside the telescopic rod 19. The repair mechanism can automatically repair and level the pits after dust removal.

[0031] The outer wall of the first piston plate 15 is provided with a sealing strip that fits against the inner wall of the first inner groove 12. The top of the inner plate 1 is provided with a first groove outside the first connecting post 16. The inner diameter of the first groove is larger than the diameter of the first connecting post 16, which ensures the sealing of the first piston plate 15 when sliding in the first inner groove 12, and prevents negative pressure from forming above the first piston plate 15 when sliding in the first inner groove 12.

[0032] The dust removal mechanism includes a second inner groove 21 located inside the outer plate 2, with both ends of the bottom of the second inner groove 21 extending towards both ends of the outer plate 2. Air jets 22, communicating with the second inner groove 21, are evenly spaced on the outer bottom of the outer plate 2. Suction pipes 23 are evenly spaced inside the second inner groove 21, located inside the air jets 22. Both ends of the suction pipes 23 extend to the outer wall of the second inner groove 21. A second piston plate 24, which slides with the upper end of the second inner groove 21, is also slidably fitted to it. The second piston plate 24 slides with the suction pipes 23. A second connecting post 25, penetrating the top of the first pressure plate 17, is fixedly connected to the top of the second piston plate 24. The top of the second connecting post 25 is fixedly connected to the bottom of the second pressure plate 110. A venting assembly is provided on the lower outer wall of the outer plate 2, facilitating the cleaning of pits on the wall surface during movement via the dust removal mechanism.

[0033] The outer wall of the second piston plate 24 is provided with a sealing strip that fits against the inner wall of the second inner groove 21. The top of the outer plate 2 is provided with a second hole groove outside the second connecting column 25. The inner diameter of the second hole groove is larger than the diameter of the second connecting column 25, which ensures the sealing of the second piston plate 24 when sliding in the second inner groove 21, and prevents the formation of negative pressure above the second piston plate 24 when sliding in the second inner groove 21.

[0034] The venting assembly includes a cylinder 26 fixedly mounted on the lower outer wall of the outer disc 2. One end of the cylinder 26 located in the second inner groove 21 is configured as an open structure, and a fourth spring 27 is fixedly connected to the inner wall of the other end of the cylinder 26. The other end of the fourth spring 27 is fixedly connected to a piston block 28 that slides in cooperation with the inner wall of the cylinder 26. A sealing ring that fits against the inner wall of the cylinder 26 is provided on the outer wall of the cylinder 26 at the bottom of the piston block 28. A vent hole 29 is provided on the outer wall of the cylinder 26 at the bottom of the piston block 28. The second pressure plate 110 is continuously pressured to make the second piston plate 24 slide in the second inner groove 21. When the air jet 22 does not pass through the recess, the venting assembly ensures the stability of the air pressure in the second inner groove 21.

[0035] The grinding mechanism includes rotating shafts 31 that are rotatably connected to the fixed plate 3 at equal intervals. Grinding discs 32 are fixedly connected to the bottom of each rotating shaft 31. The bottom surfaces of the grinding discs 32, the inner disc 1, and the outer disc 2 are all located on the same horizontal plane. Limiting blocks 33 are fixedly connected to the top of each rotating shaft 31. Belts 34 are sleeved on the outer walls of two adjacent sets of rotating shafts 31. A motor 35 is fixedly installed on the top of the fixed plate 3. The output end of the motor 35 is fixedly connected to a set of limiting blocks 33. Rotating rollers are rotatably connected to the top of the fixed plate 3 on the outer wall of each set of belts 34. The grinding mechanism grinds the wall surface when the device moves.

[0036] Working principle: When using this wall leveling device for construction, firstly, the discharge plate 13 can be disassembled and installed using bolts. After disassembling the discharge plate 13, the first inner groove 12 is filled with mortar. After filling with mortar, the discharge plate 13 is installed. At this time, by holding the handle on the second pressure plate 110 with both hands, the bottom surface of the device is aligned with the flat position of the wall. The motor 35 is started, and the motor 35 drives a set of limit blocks 33 to rotate. The set of limit blocks 33 drives the rotating shaft 31 fixedly connected to it to rotate. The rotating shaft 31 drives the grinding disc 32 at the bottom to rotate. Since the outer walls of the two adjacent sets of rotating shafts 31 are fitted with belts 34, and rotating rollers are rotatably connected to the outer walls of each set of belts 34 for limiting, when a set of grinding discs 32 rotates, the grinding discs 32 at the bottom of the rotating shaft 31 rotate synchronously. The rotating grinding discs 32 can grind the wall surface. If it passes through the mortar protrusions, the rotating grinding discs 32 will first grind the mortar protrusions flat until the wall surface is ground flat.

[0037] Then, while moving the device, the operator continuously applies a certain pressure to push the second pressure plate 110. Since the elastic force of the third spring 111 is less than that of the fourth spring 27, during the movement, the air jet 22 and the discharge hole 14 are blocked by the wall, and the first piston plate 15 cannot move. The second pressure plate 110 then pushes the second connecting column 25 to drive the second piston plate 24 to slide slowly in the second inner groove 21. The second piston plate 24 slides on the outer wall of the suction pipe 23. The second pressure plate 110 pushes the telescopic rod 19 to extend and retract, squeezing the third spring 111. The air pressure in the second inner groove 21 is increased under the pressure of the second piston plate 24. The increased gas pressure pushes the piston block 28 in the cylinder 26 to slide. The fourth spring 27 is squeezed, at which point the vent 29 opens, and the gas is released through the vent 29 to balance the air pressure in the second inner groove 21. If the device passes through a pit during movement, the jet nozzle 22 and the suction pipe 23 located at the bottom of the outer plate 2 will move to the pit first, and the jet nozzle 22 located at the pit will open, and air will be sprayed out of the pit through the jet nozzle 22. The piston block 28 slides back to block the vent 29 under the action of the fourth spring 27. After the sprayed gas fills the pit, the excess air is blown out through the suction pipe 23. At the same time as blowing out the air, the dust in the pit can be sprayed out through the suction pipe 23. As the device moves, the pits on the wall can be cleaned first during the movement.

[0038] Simultaneously, as the device moves, after the jet nozzle 22 moves past the pit, the discharge hole 14 of the discharge plate 13 will immediately move to the pit. Since the elastic force of the second spring 18 is less than that of the third spring 111, the reaction force of the third spring 111 plus the applied thrust can push the first pressure plate 17 down and drive the first piston plate 15 to slide down at the upper end of the first inner groove 12 and squeeze the second spring 18. The mortar inside the first inner groove 12 is squeezed out through the discharge hole 14 at the pit. As the mortar in the pit is filled, the movement of the discharge plate 13 can smooth the mortar in the pit. At the same time, the discharge hole 14 is closed again, and the first piston plate 15 cannot move. As the device moves on the wall, it can automatically repair and level the pit after cleaning.

[0039] When the second piston plate 24 slowly moves to the bottom of the second inner groove 21 until the second pressure plate 110 can no longer be pushed, the device can be moved away, inverted, and the second pressure plate 110 can be released. Under the action of the second spring 18 and the third spring 111, the first piston plate 15 and the second piston plate 24 will both move back to their original positions. The mortar in the first inner groove 12 can be filled and then used again. When leveling the wall edge, the two sets of second pressure plates 110 can be pulled closer to each other, so that the two sets of inner discs 1 rotate and fold, squeezing the first spring 11. The inner disc 1 drives the outer disc 2 and the fixed plate 3 to move synchronously. At this time, the folded inner disc 1 is pressed against the angle between the walls. Similarly, when the device is moved longitudinally, it can be used to grind and automatically repair the two walls located at the wall angle after cleaning. Therefore, when leveling another wall, the leveling area can be reduced and the leveling efficiency of the wall can be improved.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wall leveling device for building construction, comprising two sets of symmetrically arranged inner discs (1), characterized in that: The two sets of inner discs (1) are hinged together, and the two sets of inner discs (1) are semi-circular structures. A first spring (11) is fixedly connected between the two sets of inner discs (1). The inner discs (1) are provided with a repair mechanism for squeezing out mortar. The outer walls of the two sets of inner discs (1) are fixedly provided with symmetrical outer discs (2). The outer walls of the two sets of inner discs (1) and outer discs (2) are provided with symmetrical inclined surfaces. The outer discs (2) are provided with a dust removal mechanism. The outer walls of the two sets of outer discs (2) are fixedly provided with two sets of symmetrical fixing plates (3). The outer walls of the fixing plates (3) are provided with a grinding mechanism for grinding the wall surface. The repair mechanism includes a first inner groove (12) formed inside the inner plate (1). The bottom of the first inner groove (12) extends and penetrates the bottom of the inner plate (1). A discharge plate (13) is bolted to the bottom of the first inner groove (12). Discharge holes (14) are evenly formed inside the discharge plate (13). A first piston plate (15) is provided at the upper end of the first inner groove (12) and slides therewith. The top of the first piston plate (15) is fixedly connected to a first piston plate that penetrates the top of the inner plate (1). A connecting column (16) is provided. A first pressure plate (17) is fixedly connected to the top of the first connecting column (16). A second spring (18) is fixedly connected between the first pressure plate (17) and the inner plate (1) on the outside of the first connecting column (16). A telescopic rod (19) is fixedly connected to the top of the first pressure plate (17). A second pressure plate (110) is fixedly connected to the top of the telescopic rod (19). A third spring (111) is fixedly connected between the first pressure plate (17) and the second pressure plate (110) on the outside of the telescopic rod (19).

2. The wall leveling device for building construction according to claim 1, characterized in that: The outer wall of the first piston plate (15) is provided with a sealing strip that fits against the inner wall of the first inner groove (12). The top of the inner plate (1) is provided with a first hole groove outside the first connecting post (16). The inner diameter of the first hole groove is larger than the diameter of the first connecting post (16).

3. The wall leveling device for building construction according to claim 1, characterized in that: The dust removal mechanism includes a second inner groove (21) opened inside the outer plate (2), and both ends of the bottom of the second inner groove (21) extend towards both ends of the outer plate (2). The outer plate (2) has air jets (22) that communicate with the second inner groove (21) at equal intervals on the outer side of the bottom. The second inner groove (21) is provided with suction pipes (23) at equal intervals on the inner side of the air jets (22). Both ends of the suction pipes (23) extend to the outer wall of the second inner groove (21). The upper end of the second inner groove (21) is provided with a second piston plate (24) that slides with it, and the second piston plate (24) slides with the suction pipes (23). The top end of the second piston plate (24) is fixedly connected with a second connecting post (25) that penetrates the top of the first pressure plate (17). The top end of the second connecting post (25) is fixedly connected to the bottom of the second pressure plate (110). The lower outer wall of the outer plate (2) is provided with a venting assembly.

4. A wall leveling device for building construction according to claim 3, characterized in that: The outer wall of the second piston plate (24) is provided with a sealing strip that fits against the inner wall of the second inner groove (21). The top of the outer disk (2) is provided with a second hole groove outside the second connecting column (25). The inner diameter of the second hole groove is larger than the diameter of the second connecting column (25).

5. A wall leveling device for building construction according to claim 3, characterized in that: The venting assembly includes a cylinder (26) fixedly mounted on the lower outer wall of the outer disk (2). One end of the cylinder (26) located in the second inner groove (21) is configured as an open structure, and a fourth spring (27) is fixedly connected to the inner wall of the other end of the cylinder (26). The other end of the fourth spring (27) is fixedly connected to a piston block (28) that slides with the inner wall of the cylinder (26). The outer wall of the piston block (28) is provided with a sealing ring that fits against the inner wall of the cylinder (26). A vent hole (29) is provided on the outer wall of the cylinder (26) at the bottom of the piston block (28).

6. A wall leveling device for building construction according to claim 1, characterized in that: The grinding mechanism includes a rotating shaft (31) rotatably connected to the fixed plate (3) at equal intervals. A grinding disc (32) is fixedly connected to the bottom of each rotating shaft (31). The bottom surfaces of the grinding disc (32), the inner disc (1), and the outer disc (2) are all located on the same horizontal plane. A limiting block (33) is fixedly connected to the top of each rotating shaft (31). A belt (34) is sleeved on the outer wall of two adjacent sets of rotating shafts (31). A motor (35) is fixedly installed on the top of the fixed plate (3). The output end of the motor (35) is fixedly connected to a set of the limiting blocks (33). A rotating roller is rotatably connected to the top of the fixed plate (3) on the outer wall of each set of belts (34).

Images