Wall grooving machine for building construction

Abstract

The invention discloses a wall grooving machine for building construction, and relates to the technical field of wall grooving, the wall grooving machine comprises a shell, a mounting plate is movably arranged in the shell, a thread driving part used for driving the mounting plate to move is arranged on the shell, a fixing plate is arranged at the bottom of the mounting plate, a rotating shaft is arranged on one side of the fixing plate, and a rotating shaft is arranged on the other side of the fixing plate. A first motor is arranged on the other side of the fixing plate, the output end of the first motor is connected with a rotating shaft, a plurality of sets of cutting blades are arranged on the rotating shaft in a sliding mode, and a second threaded rod is driven to rotate by rotating a rotary knob so as to drive a moving block to move up and down. Movement of the moving block is transmitted to the mounting block through the connecting rod, so that the height of the roller is adjusted, and the roller is preliminarily attached to the wall face. And the control block is driven by the pretightening force driving part to move on the connecting rod, the compression amount of the spring is changed, the pretightening force of the spring is adjusted, and it can be ensured that the rolling wheel can keep the stable attaching degree on the wall surfaces with different flatness and hardness.

Description

Technical Field

[0001] The present invention relates to the technical field of wall grooving, and specifically relates to a wall grooving machine for building construction. Background Art

[0002] A wall grooving machine for building construction is an electric tool used for grooving operations on walls. The wall grooving machine is suitable for grooving operations on various building walls, such as concrete walls, brick walls, and cement walls. During the installation of water and electricity, it can be used for laying electrical conduits for lighting or power wiring; during the renovation of old houses, it can be used for projects such as changing exposed wires to concealed wires; during the decoration of new houses, it can be used for grooving operations for various pipeline layouts.

[0003] The patent document with the Chinese patent authorization announcement number CN219686165U discloses a wall grooving machine that is easy to adjust, including a housing, a first rotating shaft, a rotating handle, a movable part, and a threaded column; by changing the number of cutting blades on the surface of the second threaded pipe, the width of the cutting groove is adjusted. By setting a pressing block and rotating the polygonal mounting block, the pressing block and the threaded rod are driven to rotate. Under the cooperation of the threaded rod and the second threaded pipe, the pressing block clamps and fixes multiple cutting blades. By setting a second fixing plate, the stability of the rotation of the cutting blade is improved. By setting a dovetail groove and a trapezoidal slider, it is convenient for the second fixing plate to drive the pressing block to move.

[0004] When the above patent is used, by holding the handle with both hands, under the action of the roller, the roller drives the housing to move on the wall surface, so as to perform the grooving work. However, the above technical solution does not consider that the roller is rigidly installed and cannot adapt to the unevenness of the wall surface, resulting in the inclination of the equipment, uneven cutting depth, and even damage to the cutting blade. Summary of the Invention

[0005] Aiming at the above problems, a wall grooving machine for building construction is provided. By setting rollers for driving the housing to move and a vertical driving component for driving the rollers to fit against the wall surface, the technical problems that the rollers cannot adapt to the unevenness of the wall surface, resulting in the inclination of the equipment, uneven cutting depth, and even damage to the cutting blade are solved.

[0006] To solve the problems of the prior art, the present invention provides a wall grooving machine for building construction, comprising a housing. An installation plate is movably arranged inside the housing, and a threaded driving component for driving the installation plate to move is arranged on the housing. A fixing plate is arranged at the bottom of the installation plate. A rotating shaft is arranged on one side of the fixing plate, and a first motor is arranged on the other side of the fixing plate. The output end of the first motor is connected to the rotating shaft. A plurality of cutting blades are slidably arranged on the rotating shaft. A fixing component for fixing the cutting blades is further arranged on the bottom of the installation plate on one side of the cutting blades. Support components are also arranged on both sides of the housing. The support components include rollers for driving the housing to move and a vertical driving component for driving the rollers to fit against the wall surface. A handle is also arranged on the housing.

[0007] Preferably, the vertical driving component includes side blocks, a second threaded rod and a connecting rod. The side blocks are arranged on both sides of the housing. The second threaded rod is threadedly arranged on the side blocks. A knob is arranged at one end of the second threaded rod, and a moving block is arranged at the other end of the second threaded rod. The connecting rod is arranged at the bottom of the moving block. A control block is movably arranged on the connecting rod. An installation block is arranged at the bottom of the connecting rod. The roller is arranged at the bottom of the installation block. A spring is also sleeved on the connecting rod. One end of the spring is connected to the bottom of the control block, and the other end of the spring is connected to the top of the installation block. A pre-tightening force driving component for driving the control block to move to change the pre-tightening force of the spring is arranged on one side of the moving block.

[0008] Preferably, the pre-tightening force driving component includes a connecting frame, a third threaded rod, a second motor and a driving block. The connecting frame is arranged on one side of the moving block. A rectangular groove is formed inside the connecting frame. The third threaded rod is vertically arranged in the rectangular groove. The second motor is arranged on the top of the connecting frame. The output end of the second motor is connected to the third threaded rod. The driving block is threadedly arranged on the third threaded rod. One side of the driving block is connected to one side of the control block.

[0009] Preferably, first limit sliders are arranged on one side of the moving block and the installation block respectively, and first limit chutes for the limit sliders to move are arranged on both sides of the housing.

[0010] Preferably, a rubber layer is coated on the surface of the roller.

[0011] Preferably, the fixing component includes a moving plate and a threaded column. The moving plate is slidably arranged at the bottom of the installation plate and on one side of the fixing plate. A threaded hole is formed inside the rotating shaft. The threaded column is arranged on one side of the moving plate. The threaded column is matched with the threaded hole. An abutting plate is arranged on the threaded column. One end of the threaded column extends outwards through one side of the moving plate. A second turntable is arranged at the extending end of the moving plate.

[0012] Preferably, extension blocks are provided on both sides of the moving plate. Positioning holes are formed in the extension blocks, screw holes are provided at the bottom of the mounting plate, positioning bolts are arranged in the positioning holes, and the positioning bolts pass through the positioning holes and are in threaded connection with the screw holes.

[0013] Preferably, the threaded driving member includes a first threaded rod and a guide post; the first threaded rod is threadedly arranged at the top of the housing, a first turntable is arranged at one end of the first threaded rod, and the other end of the first threaded rod is connected to the top of the mounting plate; the guide post is arranged at the top of the housing and on both sides of the first threaded rod, one end of the guide post is connected to the top of the mounting plate, and a limit disk is arranged at the other end of the guide post.

[0014] Preferably, second limit sliders are arranged on both sides of the mounting plate, and limit sliding grooves for the second limit sliders to move are arranged on the inner wall of the housing.

[0015] Preferably, a measuring column is further arranged on the top of the mounting plate, and the measuring column is slidably arranged on the housing.

[0016] The beneficial effects of the present invention compared with the prior art are as follows: 1. By rotating the knob in the present invention, the second threaded rod is driven to rotate, thereby driving the moving block to move up and down. The movement of the moving block is transmitted to the mounting block through the connecting rod, so as to adjust the height of the roller, making the roller initially fit the wall surface. And the pre-tightening force driving member is used to drive the control block to move on the connecting rod, changing the compression amount of the spring. When the control block moves downward, the spring is compressed, the pre-tightening force increases, and the pressure of the roller on the wall surface increases; on the contrary, when the control block moves upward, the compression amount of the spring decreases, the pre-tightening force decreases, and the pressure of the roller on the wall surface decreases. Thus, by adjusting the pre-tightening force of the spring, it can be ensured that the roller can maintain a stable fit on walls with different flatness and hardness, improving the operation stability and accuracy of the grooving machine.

[0017] 2. By manually rotating the second turntable in the present invention, the threaded column is driven to rotate. The threaded column is screwed into the threaded hole of the rotating shaft, and at the same time, the abutting plate abuts against one end of the cutting blade. As the threaded column is continuously screwed in, the cutting blade is fastened on the rotating shaft, ensuring that the cutting blade will not loosen or shift during the operation. When it is necessary to adjust the cutting width or replace the cutting blade, the operator rotates the second turntable in the reverse direction, driving the threaded column to screw out of the threaded hole of the rotating shaft. The moving plate slides to the initial position, and the cutting blade can be easily removed from the rotating shaft, facilitating the adjustment of the number of cutting blades and the replacement of the cutting blade.

[0018] 3. The present invention drives the first threaded rod to rotate by rotating the first turntable. Since the first threaded rod is connected to the top of the mounting plate, the rotation of the first threaded rod will be converted into the vertical lifting movement of the mounting plate. The guide posts are arranged on both sides of the first threaded rod to provide vertical guidance for the mounting plate, ensuring that the mounting plate remains horizontal and stable during the lifting process. By rotating the first turntable, the operator can precisely control the rotation amount of the first threaded rod and adjust the height of the mounting plate, so as to meet the requirements of different wall grooving operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic perspective view of a wall grooving machine for building construction Figure 1 .

[0020] Figure 2 is a schematic perspective view of a wall grooving machine for building construction Figure 2 .

[0021] Figure 3 is a perspective view of the housing, mounting plate and cutting blade in a wall grooving machine for building construction.

[0022] Figure 4 is a cross-sectional view of a wall grooving machine for building construction in a front view perspective.

[0023] Figure 5 is a schematic perspective view of a wall grooving machine for building construction Figure 3 .

[0024] Figure 6 is a perspective view of the rollers, side blocks, connecting rods, control blocks and springs in a wall grooving machine for building construction.

[0025] Figure 7 is a perspective view of the rollers, control blocks and connecting frames in a wall grooving machine for building construction.

[0026] Figure 8 is a cross-sectional view of the connecting frame in a wall grooving machine for building construction in a side view perspective.

[0027] Figure 9 is a cross-sectional view of the housing in a wall grooving machine for building construction in a front view perspective.

[0028] Figure 10 is a perspective view of the moving plate, abutting plate and second turntable in a wall grooving machine for building construction.

[0029] Figure 11 is a perspective view of the mounting plate, second turntable and extension block in a wall grooving machine for building construction.

[0030] The reference numerals in the figure are: 1, housing; 2, mounting plate; 21, first threaded rod; 22, first turntable; 23, guide post; 24, limit plate; 3, fixing plate; 4, rotating shaft; 5, first motor; 6, cutting blade; 7, fixing component; 71, moving plate; 72, threaded column; 73, abutting plate; 74, second turntable; 75, extension block; 8, supporting component; 81, roller; 82, side block; 83, second threaded rod; 84, knob; 85, moving block; 86, connecting rod; 87, control block; 88, mounting block; 89, spring; 810, connecting frame; 811, third threaded rod; 812, second motor; 813, driving block; 9, handle; 10, measuring column. Detailed implementation manners

[0031] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0032] See Figures 1 to 11 As shown, the present invention provides a wall grooving machine for building construction, including a housing 1. A mounting plate 2 is movably arranged inside the housing 1. A threaded driving component for driving the mounting plate 2 to move is arranged on the housing 1. A fixing plate 3 is arranged at the bottom of the mounting plate 2. A rotating shaft 4 is arranged on one side of the fixing plate 3. A first motor 5 is arranged on the other side of the fixing plate 3. The output end of the first motor 5 is connected to the rotating shaft 4. A plurality of groups of cutting blades 6 are slidably arranged on the rotating shaft 4. A fixing component 7 for fixing the cutting blades 6 is further arranged on the bottom of the mounting plate 2 on one side of the cutting blades 6. Supporting components 8 are arranged on both sides of the housing 1. The supporting components 8 include rollers 81 for driving the housing 1 to move and a vertical driving component for driving the rollers 81 to fit against the wall surface. A handle 9 is also arranged on the housing 1.

[0033] The operator moves the grooving machine to the position of the wall to be grooved through the handle 9. By starting the vertical driving component, the vertical driving component drives the rollers 81 to fit against the wall surface to ensure the stability and accuracy of the grooving machine during operation. Start the first motor 5, and the first motor 5 drives the rotating shaft 4 to rotate, thereby driving the cutting blades 6 to rotate at a high speed. Adjust the position of the mounting plate 2 through the threaded driving component, so as to control the cutting depth of the cutting blades 6 to meet different grooving requirements. During the rotation of the cutting blades 6, the wall is cut to form the required wire grooves. During the cutting process, the fixing component 7 ensures the stability of the cutting blades 6 and prevents them from shifting due to vibration or external force, ensuring the accuracy and efficiency of grooving. When adjusting the cutting width or replacing the cutting blades 6, the number of cutting blades 6 can be adjusted or new cutting blades 6 can be replaced through the fixing component 7.

[0034] See Figures 4 to 8As shown, the vertical driving component includes side blocks 82, a second threaded rod 83, and a connecting rod 86; the side blocks 82 are arranged on both sides of the housing 1; the second threaded rod 83 is threadedly arranged on the side blocks 82, one end of the second threaded rod 83 is provided with a knob 84, and the other end of the second threaded rod 83 is provided with a moving block 85; the connecting rod 86 is arranged at the bottom of the moving block 85, a control block 87 is movably arranged on the connecting rod 86, an installation block 88 is arranged at the bottom of the connecting rod 86, a roller 81 is arranged at the bottom of the installation block 88, a spring 89 is also sleeved on the connecting rod 86, one end of the spring 89 is connected to the bottom of the control block 87, and the other end of the spring 89 is connected to the top of the installation block 88. A pre-tightening force driving component for driving the control block 87 to move to change the pre-tightening force of the spring 89 is arranged on one side of the moving block 85.

[0035] The operator rotates the knob 84 to drive the second threaded rod 83 to rotate, thereby driving the moving block 85 to move up and down. The movement of the moving block 85 is transmitted to the installation block 88 through the connecting rod 86, so as to adjust the height of the roller 81 and make the roller 81 initially fit the wall surface. And the control block 87 is driven to move on the connecting rod 86 through the pre-tightening force driving component to change the compression amount of the spring 89. When the control block 87 moves downward, the spring 89 is compressed, the pre-tightening force increases, and the pressure of the roller 81 on the wall surface increases; on the contrary, when the control block 87 moves upward, the compression amount of the spring 89 decreases, the pre-tightening force decreases, and the pressure of the roller 81 on the wall surface decreases. Therefore, by adjusting the pre-tightening force of the spring 89, it can be ensured that the roller 81 can maintain a stable fit on walls with different flatness and hardness, improving the operation stability and accuracy of the grooving machine.

[0036] See Figures 4 to 8 As shown, the pre-tightening force driving component includes a connecting frame 810, a third threaded rod 811, a second motor 812, and a driving block 813; the connecting frame 810 is arranged on one side of the moving block 85; a rectangular groove is opened in the connecting frame 810, and the third threaded rod 811 is vertically arranged in the rectangular groove; the second motor 812 is arranged on the top of the connecting frame 810, and the output end of the second motor 812 is connected to the third threaded rod 811; the driving block 813 is threadedly arranged on the third threaded rod 811, and one side of the driving block 813 is connected to one side of the control block 87.

[0037] By starting the second motor 812, the output end of the second motor 812 drives the third threaded rod 811 to rotate. The rotation of the third threaded rod 811 is transmitted to the driving block 813 through a threaded connection, causing the driving block 813 to move up and down on the third threaded rod 811. The up and down movement of the driving block 813 drives the control block 87 to move on the connecting rod 86. When the driving block 813 moves downward, the control block 87 moves downward accordingly, compressing the spring 89 and increasing the pre-tightening force of the spring 89, thereby increasing the pressure of the roller 81 on the wall surface. Conversely, when the driving block 813 moves upward, the control block 87 moves upward accordingly, the compression amount of the spring 89 decreases, the pre-tightening force decreases, and the pressure of the roller 81 on the wall surface also decreases accordingly. Thus, the operator can accurately adjust the pressure of the roller 81 on the wall surface according to actual working conditions, such as the flatness and hardness of the wall surface, to ensure the working stability and accuracy of the grooving machine.

[0038] See Figure 5 As shown, first limit sliders are provided on one side of the moving block 85 and the mounting block 88, and first limit chutes for the limit sliders to move are provided on both sides of the housing 1.

[0039] When the second threaded rod 83 rotates to drive the moving block 85 to move up and down, the moving block 85 will synchronously drive the mounting block 88 to move together. When the moving block 85 and the mounting block 88 move, the moving block 85 and the mounting block 88 will move through the first limit sliders in the first limit chutes, thereby improving the stability of the movement.

[0040] See Figure 5 and Figure 6 As shown, the surface of the roller 81 is coated with a rubber layer.

[0041] Due to the large friction coefficient of the rubber layer, when the roller 81 rolls on the wall surface, the friction between the rubber layer and the wall surface increases, which helps to prevent the roller 81 from slipping during the operation, thereby ensuring that the grooving machine can move stably along the wall surface and improving the operation accuracy and efficiency. At the same time, the rubber layer has good elasticity and buffering performance. When the roller 81 encounters unevenness or hardness changes on the wall surface, the rubber layer can absorb part of the impact and vibration, thereby reducing the damage to the grooving machine and the wall surface, extending the service life of the equipment, and improving the comfort during the operation.

[0042] See Figures 9 to 11 As shown, the fixing assembly 7 includes a moving plate 71 and a threaded column 72; the moving plate 71 is slidably disposed at the bottom of the mounting plate 2 and on one side of the fixing plate 3; a threaded hole is formed in the rotating shaft 4, the threaded column 72 is disposed on one side of the moving plate 71, the threaded column 72 is matched with the threaded hole, an abutting plate 73 is provided on the threaded column 72, one end of the threaded column 72 penetrates through one side of the moving plate 71 and extends outward, and a second turntable 74 is provided at the extending end of the moving plate 71.

[0043] Before installing the cutting disc 6, the moving plate 71 is in the initial position, and the threaded post 72 is not screwed into the threaded hole of the rotating shaft 4. Slide the cutting disc 6 onto the rotating shaft 4, slide the moving plate 71 to align the threaded post 72 with the threaded hole of the rotating shaft 4. The operator manually rotates the second turntable 74 to drive the rotation of the threaded post 72. The threaded post 72 is screwed into the threaded hole of the rotating shaft 4, and at the same time, the abutting plate 73 abuts against one end of the cutting disc 6. As the threaded post 72 is continuously screwed in, the cutting disc 6 is fastened to the rotating shaft 4 to ensure that the cutting disc 6 will not loosen or shift during operation. When it is necessary to adjust the cutting width or replace the cutting disc 6, the operator rotates the second turntable 74 in the reverse direction to drive the threaded post 72 out of the threaded hole of the rotating shaft 4. The moving plate 71 slides to the initial position, and the cutting disc 6 can be easily removed from the rotating shaft 4, facilitating the adjustment of the number of cutting discs 6 and the replacement of the cutting disc 6.

[0044] See Figure 11 As shown, extension blocks 75 are provided on both sides of the moving plate 71. Positioning holes are provided in the extension blocks 75, screw holes are provided at the bottom of the mounting plate 2, positioning bolts are provided in the positioning holes, and the positioning bolts pass through the positioning holes and are threadedly connected to the screw holes.

[0045] By passing the positioning bolts through the positioning holes in the extension blocks 75 and screwing them into the screw holes at the bottom of the mounting plate 2. As the positioning bolts are screwed in, the moving plate 71 is gradually tightened and fixed to the mounting plate 2, thereby ensuring that the cutting disc 6 will not loosen or shift during operation.

[0046] See Figure 4 As shown, the threaded drive member includes a first threaded rod 21 and a guide post 23; the first threaded rod 21 is threadedly provided at the top of the housing 1, one end of the first threaded rod 21 is provided with a first turntable 22, and the other end of the first threaded rod 21 is connected to the top of the mounting plate 2; the guide post 23 is provided at the top of the housing 1 and on both sides of the first threaded rod 21, one end of the guide post 23 is connected to the top of the mounting plate 2, and the other end of the guide post 23 is provided with a limit disc 24.

[0047] By rotating the first turntable 22, the rotation of the first threaded rod 21 is driven. Since the first threaded rod 21 is connected to the top of the mounting plate 2, the rotation of the first threaded rod 21 is converted into the vertical lifting movement of the mounting plate 2. The guide post 23 is provided on both sides of the first threaded rod 21 to provide vertical guidance for the mounting plate 2, ensuring that the mounting plate 2 remains horizontal and stable during the lifting process. By rotating the first turntable 22, the operator can accurately control the rotation amount of the first threaded rod 21 and adjust the height of the mounting plate 2, so as to meet the requirements of different wall grooving operations.

[0048] See Figure 3As shown, second limit sliders are provided on both sides of the mounting plate 2, and limit sliding grooves for the movement of the second limit sliders are provided on the inner wall of the housing 1.

[0049] When the first threaded rod 21 drives the mounting plate 2 to move within the housing 1, the mounting plate 2 will slide within the limit sliding grooves through the second limit sliders on both sides, thereby improving the stability of the movement of the mounting plate 2.

[0050] See Figure 1 As shown, a measuring column 10 is further provided on the top of the mounting plate 2, and the measuring column 10 is slidably arranged on the housing 1.

[0051] Through the arrangement of the measuring column 10, during the grooving operation, the measuring column 10 can timely feedback the height change of the mounting plate 2, so that the cutting depth can be observed in real time. The operator moves the grooving machine to the position of the wall to be grooved through the handle 9. By rotating the knob 84, the second threaded rod 83 is driven to rotate, and then the moving block 85 is driven to move up and down. The movement of the moving block 85 is transmitted to the mounting block 88 through the connecting rod 86, so as to adjust the height of the roller 81, so that the roller 81 is initially attached to the wall surface. And the control block 87 is driven to move on the connecting rod 86 through the pre-tightening force driving component, and the compression amount of the spring 89 is changed. When the control block 87 moves downward, the spring 89 is compressed, the pre-tightening force increases, and the pressure of the roller 81 on the wall surface increases; on the contrary, when the control block 87 moves upward, the compression amount of the spring 89 decreases, the pre-tightening force decreases, and the pressure of the roller 81 on the wall surface decreases. Thus, by adjusting the pre-tightening force of the spring 89, it can be ensured that the roller 81 can maintain a stable attachment degree on walls with different flatness and hardness, improving the operation stability and precision of the grooving machine. The first motor 5 is started, and the first motor 5 drives the rotating shaft 4 to rotate, and then drives the cutting disc 6 to rotate at a high speed. Before installing the cutting disc 6, the moving plate 71 is in the initial position, and the threaded column 72 is not screwed into the threaded hole of the rotating shaft 4. The cutting disc 6 is slidably installed on the rotating shaft 4, and the moving plate 71 is slid to align the threaded column 72 with the threaded hole of the rotating shaft 4. The operator manually rotates the second turntable 74 to drive the threaded column 72 to rotate. The threaded column 72 is screwed into the threaded hole of the rotating shaft 4, and at the same time, the abutting plate 73 abuts against one end of the cutting disc 6. As the threaded column 72 is continuously screwed in, the cutting disc 6 is fastened on the rotating shaft 4 to ensure that the cutting disc 6 will not loosen or shift during the operation. When it is necessary to adjust the cutting width or replace the cutting disc 6, the operator reversely rotates the second turntable 74 to drive the threaded column 72 to screw out of the threaded hole of the rotating shaft 4. The moving plate 71 slides to the initial position, and the cutting disc 6 can be easily removed from the rotating shaft 4, which is convenient for adjusting the number of the cutting discs 6 and replacing the cutting disc 6.

[0052] The above embodiments merely represent one or several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the appended claims.

Claims

1. A wall grooving machine for building construction, characterized in that, It includes a housing (1), inside which an installation plate (2) is movably arranged. A threaded driving component for driving the installation plate (2) to move is arranged on the housing (1). A fixing plate (3) is arranged at the bottom of the installation plate (2). A rotating shaft (4) is arranged on one side of the fixing plate (3). A first motor (5) is arranged on the other side of the fixing plate (3). The output end of the first motor (5) is connected to the rotating shaft (4). Multiple cutting blades (6) are slidably arranged on the rotating shaft (4). A fixing component (7) for fixing the cutting blades (6) is also arranged on the bottom of the installation plate (2) on one side of the cutting blades (6). Support components (8) are arranged on both sides of the housing (1). The support components (8) include rollers (81) for driving the housing (1) to move and a vertical driving component for driving the rollers (81) to fit against the wall. A handle (9) is also arranged on the housing (1).

2. The wall grooving machine for building construction according to claim 1, wherein, The vertical driving component includes side blocks (82), a second threaded rod (83) and a connecting rod (86); The side blocks (82) are arranged on both sides of the housing (1); The second threaded rod (83) is threadedly arranged on the side blocks (82). A knob (84) is arranged at one end of the second threaded rod (83), and a moving block (85) is arranged at the other end of the second threaded rod (83); The connecting rod (86) is arranged at the bottom of the moving block (85). A control block (87) is movably arranged on the connecting rod (86). An installation block (88) is arranged at the bottom of the connecting rod (86). The roller (81) is arranged at the bottom of the installation block (88). A spring (89) is also sleeved on the connecting rod (86). One end of the spring (89) is connected to the bottom of the control block (87), and the other end of the spring (89) is connected to the top of the installation block (88). A pre-tightening force driving component for driving the control block (87) to move to change the pre-tightening force of the spring (89) is arranged on one side of the moving block (85).

3. The wall grooving machine for building construction according to claim 2, wherein, The pre-tightening force driving component includes a connecting frame (810), a third threaded rod (811), a second motor (812) and a driving block (813); The connecting frame (810) is arranged on one side of the moving block (85); A rectangular groove is formed inside the connecting frame (810), and the third threaded rod (811) is vertically arranged in the rectangular groove; The second motor (812) is arranged on the top of the connecting frame (810), and the output end of the second motor (812) is connected to the third threaded rod (811); The driving block (813) is threadedly arranged on the third threaded rod (811), and one side of the driving block (813) is connected to one side of the control block (87).

4. The wall grooving machine for building construction according to claim 2, wherein, First limit sliders are arranged on one side of the moving block (85) and the installation block (88), and first limit chutes for the limit sliders to move are arranged on both sides of the housing (1).

5. A wall grooving machine for building construction according to claim 1, characterized in that, A rubber layer is coated on the surface of the roller (81).

6. The wall slotting machine for building construction according to claim 1, wherein The fixing component (7) includes a moving plate (71) and a threaded column (72); The movable plate (71) is slidably arranged at the bottom of the mounting plate (2) and is located on one side of the fixed plate (3); A threaded hole is formed in the rotating shaft (4). The threaded column (72) is arranged on one side of the movable plate (71). The threaded column (72) is matched with the threaded hole. An abutting plate (73) is arranged on the threaded column (72). One end of the threaded column (72) penetrates through one side of the movable plate (71) and extends outwards. A second turntable (74) is arranged at the extending end of the movable plate (71).

7. The wall grooving machine for building construction according to claim 6, wherein, Extension blocks (75) are arranged on both sides of the movable plate (71). Positioning holes are formed in the extension blocks (75). Screw holes are arranged at the bottom of the mounting plate (2). Positioning bolts are arranged in the positioning holes. The positioning bolts pass through the positioning holes and are threadedly connected with the screw holes.

8. A wall grooving machine for building construction according to claim 1, characterized in that, The threaded driving component includes a first threaded rod (21) and a guide post (23); The first threaded rod (21) is threadedly arranged at the top of the housing (1). A first turntable (22) is arranged at one end of the first threaded rod (21). The other end of the first threaded rod (21) is connected to the top of the mounting plate (2); The guide post (23) is arranged at the top of the housing (1) and is located on both sides of the first threaded rod (21). One end of the guide post (23) is connected to the top of the mounting plate (2). A limit disc (24) is arranged at the other end of the guide post (23).

9. The wall slotting machine for building construction according to claim 1, characterized in that, Second limit sliders are arranged on both sides of the mounting plate (2). Limit sliding grooves for the second limit sliders to move are arranged on the inner wall of the housing (1).

10. A wall grooving machine for building construction according to claim 1, characterized in that, A measuring column (10) is further arranged at the top of the mounting plate (2). The measuring column (10) is slidably arranged on the housing (1).

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