Wall surface dismantling device for house building decoration

Abstract

The invention relates to the technical field of wall surface dismantling for house building decoration, in particular to a wall surface dismantling device for house building decoration. The invention provides a wall dismantling device for house building decoration, which comprises a moving part, a motor is mounted on the moving part, an output shaft of the motor is connected with a screw rod through a coupler, an extension part is in threaded connection with the screw rod, the extension part is in sliding connection with the moving part, and a shoveling device is mounted on the extension part. And telescopic pieces which are symmetrically distributed are fixedly connected to the moving piece. According to the shoveling device, stable positioning under different wall surface spans is achieved through contact between the stopping plate and the left and right wall surfaces and contact between the limiting piece and the ground, so that the moving piece always moves in the horizontal direction in the mode of being attached to the wall surface to be shoveled, deviation is not prone to occurring, the accuracy of shoveling work is ensured, and the shoveling efficiency is improved through accurate control over the motor and the winder. Automatic movement of the shoveling device in the up-down direction and the left-right direction is achieved, and the working efficiency and the working quality are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of wall removal for house building decoration, and in particular to a wall removal device for house building decoration. Background Art

[0002] As the building ages, the wall paint will become loose, causing it to curl and fall off, which not only affects the appearance of the wall, but also affects the wall's waterproof and moisture-proof properties. Therefore, when the wall paint is damaged, it must be removed in time, and the wall must be redecorated to improve the quality of living.

[0003] For example, a patent with a patent authorization publication number of CN215368858U and an announcement date of 2021-12-31 discloses a wall skin removal device for interior decoration, including a base plate, a fixing frame welded on one side of the base plate, a box body B is bolted to the bottom end of the right side of the fixing frame, a suction fan is fixedly installed above the box body B, a pipe B is detachably connected to the right side of the suction fan, and the end of the pipe B away from the suction fan extends to the top of the right side of the box body B, a pipe A is detachably connected above the suction fan, and a wind hood is fixedly installed at the end of the pipe A away from the suction fan, and a shovel body is detachably connected below the wind hood. However, the above scheme still has certain shortcomings in actual use. For example, when the shovel body is removing the wall skin, the shovel body may be offset due to encountering hard objects such as concrete structures, resulting in the need for frequent repositioning, affecting work efficiency.

[0004] Based on the above situation, the present invention proposes a wall removal device for house building decoration. Summary of the invention

[0005] In order to overcome the disadvantage that the shovel body may deviate due to hitting hard objects such as concrete structures, resulting in the need for frequent repositioning and affecting work efficiency, the present invention proposes a wall removal device for house construction and decoration.

[0006] The technical implementation scheme of the present invention is: a wall demolition device for house building decoration, including a moving part, a motor is installed on the moving part, the output shaft of the motor is connected to a screw rod through a coupling, an extension part is threadedly connected to the screw rod, the extension part is slidably connected to the moving part, a scraper is installed on the extension part, symmetrically distributed telescopic parts are fixedly connected to the moving part, the fixed parts of the symmetrically distributed telescopic parts are all fixedly connected to abutment plates, the sides of the abutment plates close to each other are all fixedly connected to the telescopic parts of the telescopic columns, connecting blocks are fixedly connected between the fixed parts of the symmetrically distributed telescopic columns, a plurality of electric push rods are installed on the top of the connecting blocks, the telescopic ends of the plurality of electric push rods are fixedly connected to fixed parts, symmetrically distributed connecting plates are rotatably connected to the fixed parts, the connecting plates are rotatably connected to the adjacent abutment plates, and a moving component is provided on the sides of the abutment plates close to each other.

[0007] In a preferred embodiment of the present invention, the moving component includes a wire reel, and the symmetrically distributed wire reels are all installed on the side of the baffle plate close to each other, and the symmetrically distributed wire reels are all wound with pull ropes, and the movable ends of the symmetrically distributed pull ropes are all fixedly connected to the moving part.

[0008] In a preferred embodiment of the present invention, it also includes a diagonal bracing mechanism for positioning the device when the wall span is very large. The diagonal bracing mechanism is arranged on the connecting block, and the diagonal bracing mechanism includes a guide frame, the guide frame is fixedly connected to the top of the connecting block, a downward pressure piece is slidably connected in the guide frame, a downward pressure spring is connected between the downward pressure piece and the guide frame, the downward pressure spring is wound on the downward pressure piece, a symmetrically distributed telescopic rod is fixedly connected to the downward pressure piece, the telescopic parts of the symmetrically distributed telescopic rods are all fixedly connected to the connecting frame, the connecting frame and the adjacent abutment plate are both slidably connected, a rack is fixedly connected to the symmetrically distributed connecting frame, a rotating part is rotatably connected to the symmetrically distributed abutment plate, a gear is fixedly connected to the side of the symmetrically distributed rotating part close to the rack, a flipping part is slidably connected to the symmetrically distributed rotating part, a symmetrically distributed limiting spring is connected between the flipping part and the adjacent rotating part, the symmetrically distributed limiting spring is wound around the adjacent rotating part, and the symmetrically distributed flipping part is fixedly connected with a symmetrically distributed limiting part.

[0009] In a preferred embodiment of the present invention, the fixing member is press-fitted with the pressing member.

[0010] In a preferred embodiment of the present invention, the rack is meshed with adjacent gears.

[0011] In a preferred embodiment of the present invention, a pre-lifting mechanism is further included to prevent the moving part from being affected by the wall skin scraped off. The pre-lifting mechanism is arranged on the moving part, and the pre-lifting mechanism includes a guide frame, which is fixed to the top of the moving part. A screw is rotatably connected to the guide frame, and a lifting frame is threadedly connected to the screw. The lifting frame is slidably connected to the guide frame, and an extrusion member is fixed to the fixed member.

[0012] In a preferred embodiment of the present invention, the extrusion element slides in the thread groove on the screw.

[0013] In a preferred embodiment of the present invention, it also includes an identification mechanism for marking if hollowing or cracking problems occur in the gypsum leveling layer after shoveling. The identification mechanism is arranged on the extension member, and the identification mechanism includes a limit frame, which is fixedly connected to the top of the extension member. A cylinder is installed on the limit frame, and a striking piece is slidably connected to the piston rod in the cylinder. A linear spring is connected between the striking piece and the piston rod of the cylinder, and the linear spring is wound around the piston rod of the cylinder. A trigger frame is fixedly connected to the top of the striking piece, and a liquid storage box is also fixedly connected to the limit frame, and an injector is fixedly connected to the liquid storage box. A wedge block is slidably connected in the injector, and a reset spring is connected between the wedge block and the injector, and a discharge hole is opened on the wedge block.

[0014] In a preferred embodiment of the present invention, the trigger frame is pressed into engagement with the wedge block.

[0015] In a preferred embodiment of the present invention, symmetrically distributed rollers are installed on the bottom of the moving member and on the side away from the telescopic column.

[0016] The present invention has the following advantages: the present invention first realizes stable positioning under different wall spans by contacting the baffle plate with the left and right walls and the limiting part with the ground, so that the moving part always moves horizontally along the wall to be shoveled and is not prone to deviation, thereby ensuring the accuracy of the shoveling work; and through the precise control of the motor and the wire reel, the automatic movement of the shovel in the up and down and left and right directions is realized, thereby greatly improving the work efficiency and work quality.

[0017] The present invention realizes the lifting and resetting functions in the process of scraping off the wall skin by the cooperation of the extrusion piece, the screw rod and the lifting frame, avoids the obstruction of the movement of the roller by the scraped off wall skin, and further improves the work efficiency and the operation quality.

[0018] The present invention firstly knocks the gypsum leveling layer after scraping by using a striking piece to find out the positions of hollows, cracks, etc., and then cooperates with the trigger frame and the wedge block to enable the ejector to mark the hollows, cracks, etc., which is convenient for subsequent processing, ensures that the wall quality meets the subsequent construction requirements, and improves the overall decoration quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the moving parts, motor, screw rod and other components of the present invention.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the telescopic member, the retaining plate, the telescopic column and other components of the present invention.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the telescopic member, the cable reel and the pull rope of the present invention.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the pressing member, the pressing spring and the telescopic rod of the present invention.

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the connecting frame, rack, gear and other components of the present invention.

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the rotating part, the limiting spring and the flipping part of the present invention.

[0026] Figure 8It is a schematic diagram of the three-dimensional structure of the lower pressing piece of the present invention.

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the extrusion, guide frame, screw and other components of the present invention.

[0028] Fig.10 It is a schematic diagram of the three-dimensional structure of the moving part, the limiting frame, the cylinder and other components of the present invention.

[0029] Fig.11 It is a sectional view of the three-dimensional structure of the cylinder, striking piece, linear spring and other components of the present invention.

[0030] Fig.12 It is a sectional view of the three-dimensional structure of the components such as the striking piece, the ejector and the wedge block of the present invention.

[0031] The markings in the attached drawings are: 1-moving part, 101-motor, 102-screw rod, 11-extension part, 12-scraper, 13-telescopic part, 14-blocking plate, 15-telescopic column, 16-connecting block, 17-multi-section electric push rod, 18-fixing part, 19-connecting plate, 110-winder, 111-pull rope, 2-pressing part, 201-pressing spring, 21-guide frame, 22-telescopic rod, 23-connecting frame, 24-rack, 25-gear, 26-rotating part, 27-limiting spring, 28-flipping part, 29-limiting part, 3-extrusion part, 31-guide frame, 32-screw, 33-lifting frame, 4-limiting frame, 41-cylinder, 42-smashing part, 43-trigger frame, 44-injector, 45-wedge block, 451-reset spring, 46-liquid storage box, 47-linear spring. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0033] Embodiment 1: A wall removal device for building decoration, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, it includes a moving member 1, the left and right sides of the bottom of the moving member 1 are symmetrically installed with rollers, the left and right parts of the rear side of the moving member 1 are also installed with rollers, a motor 101 is installed on the top rear side of the moving member 1, the output shaft on the upper side of the motor 101 is connected to a screw rod 102 through a coupling, an extension member 11 is threadedly connected to the screw rod 102, the extension member 11 is slidably connected to the moving member 1, a scraper 12 is installed on the extension member 11, and telescopic members 13 are fixedly connected to the left and right sides of the moving member 1. The two telescopic members The fixed parts of the retaining plates 13 are all fixedly connected with the retaining plates 14, and the telescopic parts of the telescopic columns 15 are fixedly connected to the sides of the retaining plates 14 that are close to each other. A connecting block 16 is fixedly connected between the fixed parts of the two telescopic columns 15, and a multi-section electric push rod 17 is installed on the top of the connecting block 16. The telescopic ends of the multi-section electric push rod 17 are fixedly connected with fixing parts 18. The left and right sides of the fixing parts 18 are rotatably connected with connecting plates 19, and the connecting plates 19 are rotatably connected to the adjacent retaining plates 14. The sides of the retaining plates 14 that are close to each other are provided with moving components.

[0034] like Figure 4 As shown, the moving component includes a wire reel 110 , and the two wire reels 110 are respectively installed on the side of the retaining plate 14 close to each other. A pull rope 111 is wound around the two wire reels 110 , and the movable ends of the two pull ropes 111 are fixedly connected to the moving member 1 .

[0035] like Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, it also includes a diagonal bracing mechanism for positioning the device when the wall span is large. The diagonal bracing mechanism is arranged on the connecting block 16, and the diagonal bracing mechanism includes a guide frame 21, which is fixedly connected to the top front side of the connecting block 16, and a pressing member 2 is slidably connected in the guide frame 21, and a pressing spring 201 is connected between the pressing member 2 and the guide frame 21, and the pressing spring 201 is wound around the pressing member 2, and telescopic rods 22 are fixedly connected to the left and right sides of the lower part of the pressing member 2, and the telescopic parts of the two telescopic rods 22 are fixedly connected to the connecting frame 23, and the connecting frame 23 is slidably connected to the adjacent retaining plate 14 Then, racks 24 are fixedly connected to the two connecting frames 23, rotating parts 26 are rotatably connected to the two retaining plates 14, gears 25 are fixedly connected to the front sides of the two rotating parts 26, flipping parts 28 are slidably connected to the two rotating parts 26, two symmetrically distributed limiting springs 27 are connected between the flipping parts 28 and the adjacent rotating parts 26, the two symmetrically distributed limiting springs 27 are wound around the adjacent rotating parts 26, limiting parts 29 are fixedly connected to the front and rear sides of the upper parts of the two flipping parts 28, the fixing part 18 is squeezed and matched with the pressing part 2, and the racks 24 are meshed with the adjacent gears 25.

[0036] When using the device, first push the moving part 1 to the middle of the wall on one side of the wall to be scraped, and make the roller on the rear side contact the wall. Then control the multi-section electric push rod 17 to drive the fixing part 18 to move downward, thereby driving the connecting plate 19 to open outward, and then the two retaining plates 14 move outward to contact the walls on the left and right sides. The left and right walls will resist the retaining plates 14, and the telescopic part 13 and the telescopic column 15 will be stretched. At the same time, the wire reel 110 will synchronously release the pull rope 111. At this time, the device has been positioned, so the moving part 1 can only move horizontally along the wall to be demolished.

[0037] Subsequently, the motor 101 can be controlled to drive the lead screw 102 to rotate forward or reverse, thereby driving the extension member 11 to drive the scraper 12 to move up and down, and then the left reel 110 is controlled to reel in the pull rope 111 and the right reel 110 is controlled to release the pull rope 111, or the left reel 110 is controlled to release the pull rope 111 and the right reel 110 is controlled to reel in the pull rope 111, so that the moving member 1 drives the scraper 12 to move left and right, and as the scraper 12 moves up and down and left and right, the wall skin of the rear wall will be cleaned.

[0038] When the span of the wall on the side to be scraped off is large, the two stop plates 14 move outwards and cannot contact the walls on the left and right sides. As the fixing member 18 continues to move downwards until it contacts the pressing member 2, the fixing member 18 will press the pressing member 2 downwards to drive the telescopic rod 22 to move downwards, and the pressing spring 201 will deform, thereby driving the connecting frame 23 and the rack 24 to move downwards. Since the rack 24 is meshed with the gear 25, the rotating member 26, the flip member 28, and the limiting member 29 are driven to flip outwards until the limiting member 29 contacts the ground. As the rack 24 continues to move downwards, the rotating member 26 will continue to rotate relative to the flip member 28, the limiting spring 27 will deform, and the flip member 28 is no longer completely fitted with the rotating member 26. At this time, the ground will resist the limiting member 29 to make the flip member 28 in a diagonal brace shape, thereby achieving stable positioning under the large-span wall.

[0039] When the back wall skin is cleaned and needs to be replaced with other wall surfaces, the multi-section electric push rod 17 can be controlled to drive the fixing member 18 to move upward and reset. When the fixing member 18 moving upward is separated from the pressing member 2, under the elastic force of the pressing spring 201, the pressing member 2 will drive the telescopic rod 22, the connecting frame 23, and the rack 24 to move upward and reset, thereby driving the rotating member 26, the flipping member 28, and the limiting member 29 to flip upward and reset, and under the elastic force of the limiting spring 27, the rotating member 26 and the flipping member 28 will return to the fitted state. According to the previous steps, it can be seen that the connecting plate 19 will close inward and drive the stop plate 1 4 moves inward to reset, the telescopic member 13 and the telescopic column 15 return to the retracted state, and the wire reel 110 reels the pull rope 111 synchronously. In summary, the baffle plate 14 contacts the left and right walls and the limiting member 29 contacts the ground, thereby achieving stable positioning under different wall spans, so that the moving member 1 always moves horizontally along the wall to be shoveled and is not prone to deviation, thereby ensuring the accuracy of the shoveling work. Through the precise control of the motor 101 and the wire reel 110, the scraper 12 can be automatically moved in the up and down and left and right directions, thereby greatly improving the work efficiency and work quality.

[0040] Embodiment 2: Based on embodiment 1, Fig. 9 As shown, it also includes a pre-lifting mechanism for preventing the moving part 1 from being affected by the wall skin scraped off, the pre-lifting mechanism is arranged on the moving part 1, and the pre-lifting mechanism includes a guide frame 31, the guide frame 31 is fixedly connected to the top of the moving part 1, the lower part of the guide frame 31 is rotatably connected to a screw rod 32, the screw rod 32 is threadedly connected to a lifting frame 33, the lifting frame 33 is slidably connected to the guide frame 31, the extrusion member 3 is fixedly connected to the rear side of the fixing member 18, and the extrusion member 3 slides in the thread groove on the screw rod 32.

[0041] When the multi-section electric push rod 17 drives the fixed part 18 to move downward, the fixed part 18 will also drive the extrusion part 3 to move downward. When the extrusion part 3 moving downward contacts the thread groove of the screw 32, as the extrusion part 3 continues to move downward, the extrusion part 3 will drive the screw 32 to rotate forward, thereby driving the lifting frame 33 to move downward, and then the screw 32 drives the moving part 1 to move upward relative to the lifting frame 33. When the extrusion part 3 passes over the thread groove of the screw 32, the screw 32 stops rotating. At this time, the roller at the bottom of the moving part 1 will be separated from the ground, so that the moving part 1 is in a suspended state, thereby driving the retaining plate 14 to move upward through the telescopic part 13, and then the rotating part 26, the flipping part 28, and the limiting part 29 move upward.

[0042] According to the previous steps, when the downwardly moving fixed member 18 contacts the pressing member 2, the rotating member 26 will drive the flipping member 28 and the limiting member 29 to flip over until the limiting member 29 contacts the ground. The rotating member 26 and the flipping member 28 always maintain a close fit, and the limiting spring 27 will not be deformed. When the multi-section electric push rod 17 drives the fixed member 18 to move upward and reset, it will drive the extrusion member 3 to move upward. The extrusion member 3 will drive the screw rod 32 to reverse again, thereby driving the lifting frame 33 to move upward, and then the screw rod 32 drives the moving member 1 to move downward and reset, and the roller at the bottom of the moving member 1 falls back to the ground. In summary, through the cooperation of the extrusion member 3, the screw rod 32, and the lifting frame 33, the lifting and resetting functions in the process of scraping off the wall skin are realized, avoiding the obstruction of the shoveled wall skin to the movement of the roller, and further improving the work efficiency and work quality.

[0043] like Fig.10 , Fig.11 and Fig.12 As shown, it also includes an identification mechanism for marking if hollowing or cracking problems occur in the gypsum leveling layer after shoveling. The identification mechanism is arranged on the extension member 11, and the identification mechanism includes a limit frame 4, which is fixedly connected to the top of the extension member 11, and a cylinder 41 is installed on the upper right part of the limit frame 4. A striking piece 42 is slidably connected to the piston rod in the cylinder 41, and a linear spring 47 is connected between the striking piece 42 and the piston rod of the cylinder 41. The linear spring 47 is wound around the piston rod of the cylinder 41, and a trigger frame 43 is fixedly connected to the front side of the top of the striking piece 42, a liquid storage box 46 is fixedly connected to the upper left part of the limit frame 4, and an injector 44 is fixedly connected to the rear side of the liquid storage box 46, a wedge block 45 is slidably connected in the injector 44, a reset spring 451 is connected between the left side of the wedge block 45 and the injector 44, a discharge hole is opened on the wedge block 45, and the trigger frame 43 is squeezed and matched with the wedge block 45.

[0044] Initially, the liquid storage box 46 is filled with an appropriate amount of pigment, and the distance that the cylinder 41 drives the striking piece 42 and the trigger frame 43 to move backward has been set. If the gypsum leveling layer has no hollowing, cracking or other problems, the trigger frame 43 moving backward will not contact the wedge block 45. After the scraper 12 has finished scraping, the cylinder 41 can be controlled to drive the striking piece 42 to move back and forth. The striking piece 42 moving back and forth will knock on the gypsum leveling layer after scraping to detect whether there are hollowing, cracking and other problems. The linear spring 47 will be slightly deformed and reset. When hollowing appears in the gypsum leveling layer, the distance that the striking piece 42 and the trigger frame 43 move backward will be further back than the preset value. Therefore, the trigger frame 43 moving backward will contact the inclined surface of the wedge block 45, and the trigger frame 43 will squeeze the wedge block 45 to move it to the left, and the reset spring 451 will be deformed.

[0045] When the discharge hole of the wedge block 45 is aligned with the injection port of the injector 44, the pigment in the liquid storage box 46 will be sprayed toward the hollow part through the injector 44, thereby making a clear mark on the hollow part. The staff will continue to shovel the marked point to the wall base. When the cylinder 41 drives the striking piece 42 and the trigger frame 43 to move forward, the trigger frame 43 moving forward will separate from the wedge block 45. Under the elastic action of the reset spring 451, the wedge block 45 moves to the right and resets, preparing for the next inspection and marking. In summary, the striking piece 42 is first used to knock on the shoveled gypsum leveling layer to find the locations of hollows, cracks, etc., and then the trigger frame 43 cooperates with the wedge block 45 to enable the injector 44 to mark the hollows, cracks, etc., which is convenient for subsequent processing, ensuring that the wall quality meets the subsequent construction requirements and improving the overall decoration quality.

[0046] Although the present invention is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications may be made to the present invention without departing from the principle and spirit of the present invention defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the present invention, but the scope of protection is limited by the content of the claims.

Claims

1. A wall removal device for house building decoration, comprising a moving part (1), a motor (101) mounted on the moving part (1), an output shaft of the motor (101) connected to a screw rod (102) via a coupling, an extension part (11) threadedly connected to the screw rod (102), the extension part (11) and the moving part (1) being slidably connected, a scraper (12) mounted on the extension part (11), wherein: The invention also comprises a telescopic member (13), wherein the symmetrically distributed telescopic members (13) are all fixedly connected to the moving member (1), the fixed parts of the symmetrically distributed telescopic members (13) are all fixedly connected to a stop plate (14), the side of the stop plates (14) close to each other is all fixedly connected to the telescopic part of a telescopic column (15), a connecting block (16) is fixedly connected between the fixed parts of the symmetrically distributed telescopic columns (15), a multi-section electric push rod (17) is installed on the top of the connecting block (16), the telescopic end of the multi-section electric push rod (17) is fixedly connected to a fixing member (18), a symmetrically distributed connecting plate (19) is rotatably connected to the fixing member (18), the connecting plate (19) is rotatably connected to the adjacent stop plate (14), and a moving component is provided on the side of the stop plates (14) close to each other.

2. A wall removal device for building decoration according to claim 1, characterized in that: The moving assembly comprises a wire reel (110), the symmetrically distributed wire reels (110) are all installed on a side of the baffle plate (14) close to each other, the symmetrically distributed wire reels (110) are all wound with a pull rope (111), and the movable ends of the symmetrically distributed pull ropes (111) are all fixedly connected to the moving member (1).

3. A wall removal device for building decoration according to claim 2, characterized in that: The device also includes a diagonal bracing mechanism for positioning the device when the wall span is large. The diagonal bracing mechanism is arranged on the connecting block (16). The diagonal bracing mechanism includes a guide frame (21). The guide frame (21) is fixedly connected to the top of the connecting block (16). A downward pressing piece (2) is slidably connected inside the guide frame (21). A downward pressing spring (201) is connected between the downward pressing piece (2) and the guide frame (21). The downward pressing spring (201) is wound around the downward pressing piece (2). The downward pressing piece (2) is fixedly connected to symmetrically distributed telescopic rods (22). The telescopic parts of the symmetrically distributed telescopic rods (22) are all fixedly connected to the connecting frame (23). The connecting frame (23) and the adjacent baffle plate (14) are connected to each other. ) are all slidably connected, racks (24) are fixedly connected to the symmetrically distributed connecting frames (23), rotating parts (26) are rotatably connected to the symmetrically distributed abutment plates (14), gears (25) are fixedly connected to the sides of the symmetrically distributed rotating parts (26) close to the racks (24), flipping parts (28) are slidably connected to the symmetrically distributed rotating parts (26), symmetrically distributed limiting springs (27) are connected between the flipping parts (28) and the adjacent rotating parts (26), the symmetrically distributed limiting springs (27) are all wound around the adjacent rotating parts (26), and symmetrically distributed limiting parts (29) are fixedly connected to the symmetrically distributed flipping parts (28).

4. A wall removal device for building decoration according to claim 3, characterized in that: The fixing piece (18) is pressed and matched with the pressing piece (2).

5. A wall removal device for building decoration according to claim 4, characterized in that: The rack (24) is meshed with the adjacent gear (25).

6. A wall removal device for building decoration according to claim 5, characterized in that: The invention also comprises a pre-lifting mechanism for preventing the moving part (1) from being affected by the wall skin scraped off, the pre-lifting mechanism being arranged on the moving part (1), the pre-lifting mechanism comprising a guide frame (31), the guide frame (31) being fixedly connected to the top of the moving part (1), a screw rod (32) being rotatably connected to the guide frame (31), a lifting frame (33) being threadably connected to the screw rod (32), the lifting frame (33) being slidably connected to the guide frame (31), and an extrusion member (3) being fixedly connected to the fixing member (18).

7. A wall removal device for building decoration according to claim 6, characterized in that: The extrusion piece (3) slides in the thread groove on the screw (32).

8. A wall removal device for building decoration according to claim 7, characterized in that: The invention also comprises an identification mechanism for marking the plaster leveling layer when hollowing or cracking occurs after shoveling. The identification mechanism is arranged on the extension member (11) and comprises a limit frame (4). The limit frame (4) is fixedly connected to the top of the extension member (11). A cylinder (41) is mounted on the limit frame (4). A striking member (42) is slidably connected to a piston rod in the cylinder (41). A straight line is connected between the striking member (42) and the piston rod of the cylinder (41). A spring (47) is wound around the piston rod of the cylinder (41), a trigger frame (43) is fixedly connected to the top of the striking member (42), a liquid storage box (46) is also fixedly connected to the limit frame (4), an injector (44) is fixedly connected to the liquid storage box (46), a wedge block (45) is slidably connected in the injector (44), a return spring (451) is connected between the wedge block (45) and the injector (44), and a discharge hole is opened on the wedge block (45).

9. A wall removal device for building decoration according to claim 8, characterized in that: The trigger frame (43) is pressed and matched with the wedge block (45).

10. A wall removal device for building decoration according to claim 9, characterized in that: The bottom of the moving part (1) and the side away from the telescopic column (15) are both equipped with symmetrically distributed rollers.

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