Auxiliary tool for plastering construction site wall surface

By using laser positioning instruments and laser rangefinders of different color beams in the construction site wall plastering auxiliary tools, the problems of inaccurate and uneven thickness of the plaster layer are solved, the accuracy and uniformity of the plaster layer are achieved, and the quality and work efficiency of the plaster layer are improved.

CN119553839APending Publication Date: 2025-03-04CHINA CONSTR FIRST GROUP THE FIFTH CONSTR
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Patent Information

Application Number
CN202411621865.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-13
Publication Date
2025-03-04

AI Technical Summary

Technical Problem

In the existing construction site wall plastering technology, the setting of the surface reference point of the plaster layer depends on the workers' experience and visual observation, resulting in the inaccurate and uneven thickness of the plaster layer, affecting the quality of the plaster.

Method used

An auxiliary tool for plastering on the wall of the construction site was designed, and a laser positioner with two different color beams was used in combination. Through the cooperation of the laser rangefinder and the vertical adjustment mechanism, the height and position of the laser positioner were ensured. The overlap and color changes of the laser beam were used to determine the position and thickness of the plaster layer.

Benefits of technology

The thickness accuracy and uniformity of the plaster layer are achieved, artificial errors are reduced, and the quality and work efficiency of plastering are improved.

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Abstract

The invention discloses a construction site wall plastering auxiliary tool, and relates to the technical field of wall plastering construction, the construction site wall plastering auxiliary tool comprises a movable base and universal self-locking wheels, the movable base is further provided with a vertical adjusting mechanism and a transverse adjusting mechanism, the transverse adjusting mechanism is provided with two laser position indicators capable of getting close to or away from each other, and the universal self-locking wheels are arranged on the two laser position indicators. The bottom end of the rear side of the transverse adjusting mechanism is further provided with a laser range finder used for monitoring the lifting height of the two laser position indicators. Laser beams emitted by the two laser position indicators are used for irradiating a wall body, and the wall body can be conveniently plastered; the two different colors of light beam lines can be overlapped to enable the colors to change to determine the position of a plastering surface layer, so that the thickness of the plastering layer is ensured, the problem that wall plastering is not uniform due to the fact that workers conduct experience and visual observation on wall plastering in the prior art is solved, the transverse adjusting mechanism can conduct angle rotation on the vertical adjusting mechanism, and the working efficiency is improved. The tool can be stored, and the occupied space is reduced.
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Description

Technical Field

[0001] The invention relates to the technical field of wall plastering construction, and in particular to an auxiliary tool for wall plastering on a construction site. Background Art

[0002] In the process of wall plastering on construction sites, the selection of auxiliary tools is crucial, as they can significantly improve work efficiency and ensure the quality of plastering;

[0003] In the existing wall plastering operation on construction sites, before plastering the wall, workers set the surface reference points of the plastering layer on the wall base in advance, and then the workers perform the plastering operation with reference to the reference points. However, the existing surface reference points of the plastering layer are generally set by workers based on experience and visual observation, and then the reference points are set in the form of mortar. This practice directly affects the thickness accuracy of the plastering layer, and the uniformity of the thickness of the plastering layer cannot be accurately ensured during the plastering process. Moreover, when the wall is fully plastered, the reference points of the wall will not be too obvious, which will also affect the uniform finishing operation of the workers on the plastering layer. For this reason, the present invention provides an auxiliary tool for wall plastering on construction sites. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an auxiliary tool for wall plastering on construction sites, which solves the problems raised by the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an auxiliary tool for wall plastering on construction sites, comprising a mobile base and a universal self-locking wheel installed at the bottom of the mobile base, and a vertical adjustment mechanism and a horizontal adjustment mechanism are also installed on the mobile base;

[0006] The lateral adjustment mechanism is equipped with two laser locators that can move closer to or farther from each other, and the lateral adjustment mechanism can drive the two laser locators to move vertically on the vertical adjustment mechanism;

[0007] A laser rangefinder for monitoring the lifting height of the two laser locators is also provided at the rear bottom end of the lateral adjustment mechanism.

[0008] As a further technical solution of the present invention, the light beams emitted by the two laser locators have different colors, and both laser locators can emit multiple light beams, and the spacing of the light beams emitted by the two laser locators at the last intersection is equal to the spacing of the light sources.

[0009] As a further technical solution of the present invention, the vertical adjustment mechanism includes a vertical protective shell vertically installed on the upper end of the mobile base and a vertical driving screw installed inside the vertical protective shell, and two vertical sliding rods arranged in a triangle with the vertical driving screw are also arranged inside the vertical protective shell, and the two vertical sliding rods are arranged in parallel inside the vertical protective shell;

[0010] It also includes a vertical drive motor installed on the upper end of the mobile base, the output end of the vertical drive motor extends to the bottom of the mobile base and is connected to a main gear 1, one end of the vertical drive screw is rotatably connected to the inner top end of the vertical protective shell, and the other end of the vertical drive screw penetrates the vertical protective shell and extends to the inner bottom end of the mobile base and is connected to a driven gear 1, and the main gear 1 and the driven gear 1 are connected by a toothed belt.

[0011] As a further technical solution of the present invention, the vertical adjustment mechanism also includes a vertical sliding seat slidably arranged on the front side of the vertical protective shell, one end of the vertical sliding seat is located inside the vertical protective shell and is threadedly connected to the vertical driving screw rod, and is slidably connected to the two vertical sliding rods;

[0012] The other end of the vertical slide extends to the outside of the vertical protective shell and is connected to a connecting plate. A positioning plate is installed on the front side of the connecting plate. A circular hole is opened at the center of the positioning plate, and the positioning plate is a cross-shaped structure. The cross ends of the positioning plate are all provided with threaded holes.

[0013] As a further technical solution of the present invention, the lateral adjustment mechanism includes a lateral protective shell and an adjustment plate connected to the middle part of the rear end of the lateral protective shell, a rotating shaft is installed at the middle part of the rear side surface of the adjustment plate corresponding to the circular hole, the rotating shaft is installed in the circular hole and adapted thereto, the adjustment plate is rotatably set on the positioning plate through the rotating shaft, and positioning holes corresponding to the threaded holes are opened at both ends of the adjustment plate.

[0014] As a further technical solution of the present invention, the lateral adjustment mechanism also includes a lateral drive motor installed at one end of the front side of the lateral protective shell and a main gear 2 connected to the output end of the lateral drive motor. A bidirectional screw and two lateral sliding rods are arranged inside the lateral protective shell. One end of the bidirectional screw is rotatably connected to the inside of the lateral protective shell, and the other end of the bidirectional screw passes through the lateral protective shell and is connected to a driven gear 2. The driven gear 2 and the main gear 2 are connected by a toothed belt.

[0015] As a further technical solution of the present invention, the surface of the bidirectional screw is respectively machined with external threads with opposite thread directions at the ends extending from the center, and the bidirectional screw and the two transverse slide bars jointly carry two transverse slide seats, and the transverse slide seats are slidably connected to the transverse slide bars;

[0016] Internal threaded holes are provided at the two transverse slides corresponding to the bidirectional screw rods, and the two transverse slides are respectively threadedly connected to two external threads in opposite directions on the surface of the bidirectional screw rod through the two internal threaded holes.

[0017] As a further technical solution of the present invention, a mounting plate is installed at the other end of the two transverse slides, the two laser locators are fixed to the mounting plate by bolts, and the two transverse slides are on the same horizontal line.

[0018] As a further technical solution of the present invention, a control box is also provided at the upper end of the mobile base, and a power supply and a controller are provided in the control box.

[0019] The present invention provides an auxiliary tool for wall plastering on construction sites. Compared with the prior art, it has the following advantages:

[0020] Beneficial effects:

[0021] 1. An auxiliary tool for wall plastering on construction sites. It uses two laser locators with different color beams to work together. The laser beams emitted by the two laser locators are used to illuminate the wall, which is convenient for plastering the wall. As the plastering progresses, the two different color beams will overlap, and the color will change. The color change of the intersection point of the last row of beams is used to determine the position of the plastering surface layer, thereby ensuring the thickness of the plastering layer. This solves the problem of uneven wall plastering caused by the existing workers relying on experience and visual observation for wall plastering.

[0022] 2. An auxiliary tool for wall plastering on construction sites. Through the cooperation of the laser rangefinder and the vertical adjustment mechanism, the height of the two laser locators can be accurately controlled on the 50cm control line of the wall, so as to achieve the accuracy of the plastering layer elevation. The cooperation of the lateral adjustment mechanism can adjust the horizontal position spacing of the two laser locators to ensure that it is suitable for plastering operations on walls of different widths. The lateral adjustment mechanism can be rotated at an angle on the vertical adjustment mechanism to realize the storage of the tool, reduce the occupied space, and facilitate carrying and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the lateral adjustment mechanism of the present invention when it is working;

[0024] Figure 2 It is a structural schematic diagram of the lateral adjustment mechanism of the present invention when it is not working;

[0025] Figure 3 This is a first structural perspective view of the lateral adjustment mechanism of the present invention;

[0026] Figure 4 This is a second structural perspective view of the lateral adjustment mechanism of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the vertical adjustment mechanism and the horizontal adjustment mechanism in the present invention;

[0028] Figure 6 It is a structural schematic diagram of the vertical adjustment mechanism in the present invention;

[0029] Figure 7 It is a schematic diagram of the principle of the plastering surface layer formed by the last intersection point of the light beams emitted by the two laser locators in the present invention.

[0030] In the figure: 1, mobile base; 2, vertical protective shell; 21, vertical drive motor; 22, main gear 1; 23, driven gear 1; 24, vertical drive screw; 25, vertical slide rod; 26, vertical slide seat; 27, connecting plate; 28, positioning plate;

[0031] 3. Transverse adjustment mechanism; 31. Transverse protective shell; 32. Adjustment plate; 33. Rotation axis; 34. Mounting plate; 35. Transverse slide seat; 36. Transverse drive motor; 37. Main gear 2; 38. Driven gear 2; 39. Transverse slide rod; 310. Bidirectional screw;

[0032] 4. Control box; 5. Laser locator; 6. Laser rangefinder. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-2 The present invention provides a technical solution for a wall plastering auxiliary tool for a construction site: an auxiliary tool for wall plastering for a construction site, comprising a mobile base 1 and a universal self-locking wheel installed at the bottom of the mobile base 1, a vertical adjustment mechanism and a horizontal adjustment mechanism 3 are also installed on the mobile base 1, and a control box 4 is also arranged at the upper end of the mobile base 1, and a power supply and a controller are arranged in the control box 4;

[0035] Two laser locators 5 that can move closer to or farther from each other are installed on the lateral adjustment mechanism 3. The two laser locators 5 are fixed to the mounting plate 34 by bolts, and the two lateral slides 35 are on the same horizontal line. The lateral adjustment mechanism 3 can drive the two laser locators 5 to move vertically on the vertical adjustment mechanism. The light beams emitted by the two laser locators 5 have different colors, and both laser locators 5 can emit multiple light beams. The spacing of the last intersection of the light beams emitted by the two laser locators 5 is equal to the spacing of the light sources, and the spacing of the intersection points of any row of light beams is ≤ the spacing of the light sources. There are as many intersection points as there are light beams, and the spacing of the last row of intersection lines is equal to the spacing of the light sources. Figure 7 As shown, a in the figure indicates the last intersection point between the two beam lines, b is the wall, c is the plaster layer, and the intersection point of the last line of beams is the final surface layer of the plaster layer;

[0036] A laser rangefinder 6 for monitoring the lifting height of the two laser locators 5 is also provided at the rear bottom end of the lateral adjustment mechanism 3. The laser rangefinder 6 can be used to monitor the lifting height of the two laser locators 5. When it is lifted to the 50cm control line of the wall, it will transmit a signal to the controller, and the controller will control the vertical adjustment mechanism to stop lifting, thereby ensuring the accuracy of the height position adjustment of the two laser locators 5.

[0037] like Figure 5 and 6As shown, the vertical adjustment mechanism includes a vertical protective shell 2 vertically installed on the upper end of the mobile base 1 and a vertical driving screw 24 installed inside the vertical protective shell 2, and the interior of the vertical protective shell 2 is also provided with two vertical slide bars 25 which are triangularly arranged with the vertical driving screw 24, and the two vertical slide bars 25 are arranged in parallel in the vertical protective shell 2, and the vertical adjustment mechanism also includes a vertical slide seat 26 which is slidably arranged on the front side of the vertical protective shell 2, one end of the vertical slide seat 26 is located inside the vertical protective shell 2 and is threadedly connected to the vertical driving screw 24, and is slidably connected to the two vertical slide bars 25, and also includes a vertical driving motor 21 installed on the upper end of the mobile base 1, the output end of the vertical driving motor 21 extends to the bottom of the mobile base 1 and is connected to a main gear 22, one end of the vertical driving screw 24 is connected to the inner side of the vertical protective shell 2 The top of the vertical driving screw 24 is rotatably connected, and the other end of the vertical driving screw 24 passes through the vertical protective shell 2 and extends to the inner bottom of the mobile base 1, and is connected with a driven gear 23. The main gear 22 and the driven gear 23 are connected by a toothed belt. When the height of the two laser locators 5 needs to be adjusted, the vertical driving motor 21 is controlled to work, so that it drives the main gear 22 to rotate, and then drives the driven gear 23 to rotate synchronously through the toothed belt. The driven gear 23 will drive the vertical driving screw 24 to rotate, and the vertical slide 26 will be affected by the threaded connection of the vertical driving screw 24. When the vertical driving screw 24 rotates, the vertical slide 26 will drive the connecting plate 27 to perform a linear lifting motion on the surface of the vertical driving screw 24, thereby driving the lateral adjustment mechanism 3 and the two laser locators 5 to be lifted and lowered.

[0038] like Figure 6 As shown, the other end of the vertical slide 26 extends to the outside of the vertical protective shell 2 and is connected to a connecting plate 27. A positioning plate 28 is installed on the front side of the connecting plate 27. A circular hole is opened at the center of the positioning plate 28, and the positioning plate 28 is a cross-shaped structure. The cross ends of the positioning plate 28 are all provided with threaded holes. The adjustment plate 32 can rotate with the positioning plate 28 through the rotating shaft 33, that is, the lateral adjustment mechanism 3 can rotate 360 ​​degrees on the connecting plate 27. The purpose is to facilitate the lateral adjustment mechanism 3 to be unfolded to a horizontal state when working, and to flip the lateral adjustment mechanism 3 to a vertical state (such as when not working) when not working. Figure 2 As shown), it reduces space occupation and is convenient for carrying and transportation;

[0039] like Figure 3 and 4As shown, the lateral adjustment mechanism 3 includes a lateral protective shell 31 and an adjustment plate 32 connected to the middle part of the rear end of the lateral protective shell 31, a rotating shaft 33 is installed at the corresponding circular hole in the middle part of the rear side surface of the adjustment plate 32, the rotating shaft 33 is installed in the circular hole and adapted thereto, the adjustment plate 32 is rotatably set on the positioning plate 28 through the rotating shaft 33, and positioning holes corresponding to the threaded holes are opened at both ends of the adjustment plate 32. When the lateral adjustment mechanism 3 is adjusted to the required state, the screw is passed through the positioning hole on the surface of the adjustment plate 32 and is screwed into the corresponding threaded hole on the surface of the positioning plate 28, so that the adjustment plate 32 and the positioning plate 28 can be fixed, thereby realizing the position fixation of the lateral adjustment mechanism 3.

[0040] The lateral adjustment mechanism 3 also includes a lateral drive motor 36 installed at one end of the front side of the lateral protection shell 31 and a main gear 2 37 connected to the output end of the lateral drive motor 36. A bidirectional screw 310 and two lateral slide bars 39 are arranged inside the lateral protection shell 31. One end of the bidirectional screw 310 is rotatably connected to the inside of the lateral protection shell 31, and the other end of the bidirectional screw 310 penetrates the lateral protection shell 31 and is connected to a driven gear 2 38. The driven gear 2 38 and the main gear 2 37 are connected by a toothed belt. It is necessary to adjust the position between the two laser locators 5. When the spacing between the two laser locators 5 is , the lateral drive motor 36 is controlled to work in the forward direction, so that it drives the main gear 2 37 to rotate, and the main gear 2 37 drives the driven gear 2 38 to rotate through the toothed belt. Therefore, the driven gear 2 38 will drive the bidirectional screw 310 to rotate. When the bidirectional screw 310 rotates, the two lateral slides 35 on its surface will approach each other, thereby making the two laser locators 5 approach each other to reduce the spacing between the two laser locators 5. Conversely, the lateral drive motor 36 is controlled to work in the reverse direction to increase the spacing between the two laser locators 5.

[0041] The surface of the bidirectional screw 310 is respectively machined with external threads with opposite thread directions at the ends extending from the center, and the bidirectional screw 310 and the two transverse slides 39 jointly carry two transverse slides 35, and the other ends of the two transverse slides 35 are installed with mounting plates 34, and the transverse slides 35 are slidingly connected to the transverse slides 39, and the two transverse slides 35 are provided with internal threaded holes corresponding to the bidirectional screw 310. The two transverse slides 35 are respectively threadedly connected to the two external threads with opposite directions on the surface of the bidirectional screw 310 through the two internal threaded holes. The two transverse slides 35 are threadedly connected to the two threads with opposite directions on the surface of the bidirectional screw 310, so as to facilitate the control of the two transverse slides 35 to move closer or farther away from each other when the bidirectional screw 310 rotates, so as to adjust the horizontal spacing between the two laser locators 5.

[0042] Working principle of the present invention: When in use, the vertical adjustment mechanism is used to adjust the horizontal adjustment mechanism 3 and the two laser locators 5 up and down, and the monitoring of the laser rangefinder 6 is used to ensure that the height position of the two laser locators 5 is adjusted to the 50cm control line of the wall;

[0043] Then, according to the width of the wall, the horizontal spacing of the two laser locators 5 is adjusted by controlling the operation of the lateral adjustment mechanism 3. After the adjustment is completed, the two laser locators 5 are controlled to emit several lasers with the same spacing, for example, one is red and the other is green; the light beams are irradiated on the wall surface to be plastered, and the last row of intersections between the two light beams is the planned surface layer of the plastering. As the plastering proceeds, the light beams emitted by the two laser locators 5 will overlap. At this time, the two overlapping colors change, which also means that the plastering has reached the correct thickness.

[0044] After the work is completed, the connecting bolts between the adjustment plate 32 and the positioning plate 28 can be released, and then the lateral adjustment mechanism 3 can be rotated from a horizontal state to a vertical state, and then the screw can be passed through the positioning hole on the surface of the adjustment plate 32 and screwed into the corresponding threaded hole on the surface of the positioning plate 28, and the adjustment plate 32 and the positioning plate 28 can be fixed again. From then on, the lateral adjustment mechanism 3 is in a vertical storage state, which is convenient for the staff to store or move the tool and reduce space occupancy.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary tool for wall plastering on construction sites, comprising a mobile base (1) and a universal self-locking wheel installed at the bottom of the mobile base (1), characterized in that: The mobile base (1) is also provided with a vertical adjustment mechanism and a horizontal adjustment mechanism (3); The lateral adjustment mechanism (3) is provided with two laser locators (5) which can move closer to or farther from each other, and the lateral adjustment mechanism (3) can drive the two laser locators (5) to move vertically on the vertical adjustment mechanism; A laser rangefinder (6) for monitoring the lifting height of the two laser locators (5) is also provided at the rear bottom end of the lateral adjustment mechanism (3).

2. The auxiliary tool for wall plastering on construction sites according to claim 1, characterized in that: The light beams emitted by the two laser locators (5) have different colors, and both laser locators (5) can emit multiple light beams. The spacing of the light beams emitted by the two laser locators (5) at the last intersection is equal to the spacing of the light sources.

3. The auxiliary tool for wall plastering on construction sites according to claim 1, characterized in that: The vertical adjustment mechanism comprises a vertical protective shell (2) vertically mounted on the upper end of the mobile base (1) and a vertical driving screw (24) mounted inside the vertical protective shell (2), and two vertical sliding bars (25) arranged in a triangle with the vertical driving screw (24) are also arranged inside the vertical protective shell (2), and the two vertical sliding bars (25) are arranged in parallel inside the vertical protective shell (2); The invention also comprises a vertical drive motor (21) mounted on the upper end of the mobile base (1); the output end of the vertical drive motor (21) extends to the bottom of the mobile base (1) and is connected to a main gear 1 (22); one end of the vertical drive screw rod (24) is rotatably connected to the top end of the interior of the vertical protective shell (2); the other end of the vertical drive screw rod (24) passes through the vertical protective shell (2) and extends to the bottom end of the interior of the mobile base (1) and is connected to a driven gear 1 (23); the main gear 1 (22) and the driven gear 1 (23) are connected via a toothed belt.

4. The auxiliary tool for wall plastering on construction sites according to claim 3, characterized in that: The vertical adjustment mechanism also includes a vertical slide seat (26) slidably arranged on the front side of the vertical protective shell (2), one end of the vertical slide seat (26) is located inside the vertical protective shell (2) and is threadedly connected to the vertical driving screw rod (24), and is slidably connected to the two vertical slide rods (25); The other end of the vertical slide seat (26) extends to the outside of the vertical protective shell (2) and is connected to a connecting plate (27). A positioning plate (28) is installed on the front side of the connecting plate (27). A circular hole is opened at the center of the positioning plate (28). The positioning plate (28) is a cross-shaped structure, and the cross ends of the positioning plate (28) are all provided with threaded holes.

5. The auxiliary tool for wall plastering on construction sites according to claim 4, characterized in that: The transverse adjustment mechanism (3) comprises a transverse protection shell (31) and an adjustment plate (32) connected to the middle of the rear end of the transverse protection shell (31); a rotating shaft (33) is installed at the middle of the rear side surface of the adjustment plate (32) corresponding to the circular hole; the rotating shaft (33) is installed in the circular hole and matched therewith; the adjustment plate (32) is rotatably arranged on the positioning plate (28) via the rotating shaft (33); and positioning holes corresponding to the threaded holes are provided at both ends of the adjustment plate (32).

6. The auxiliary tool for wall plastering on construction sites according to claim 5, characterized in that: The transverse adjustment mechanism (3) further comprises a transverse drive motor (36) mounted at one end of the front side of the transverse protection shell (31) and a main gear 2 (37) connected to the output end of the transverse drive motor (36); a bidirectional screw rod (310) and two transverse sliding rods (39) are arranged inside the transverse protection shell (31); one end of the bidirectional screw rod (310) is rotatably connected to the inside of the transverse protection shell (31); and the other end of the bidirectional screw rod (310) passes through the transverse protection shell (31) and is connected to a driven gear 2 (38); the driven gear 2 (38) and the main gear 2 (37) are connected via a toothed belt.

7. The auxiliary tool for wall plastering on construction sites according to claim 6, characterized in that: The surface of the bidirectional screw (310) is respectively machined with external threads with opposite thread directions extending from the center to both ends, and the bidirectional screw (310) and the two transverse slide bars (39) are jointly supported by two transverse slide seats (35), and the transverse slide seats (35) are slidably connected to the transverse slide bars (39); The two transverse slides (35) are provided with internal threaded holes at positions corresponding to the bidirectional screw rod (310), and the two transverse slides (35) are respectively threadedly connected to two external threads with opposite directions on the surface of the bidirectional screw rod (310) through the two internal threaded holes.

8. The auxiliary tool for wall plastering on construction sites according to claim 7, characterized in that: The other ends of the two transverse slides (35) are both installed with a mounting plate (34), the two laser locators (5) are both fixed on the mounting plate (34) by bolts, and the two transverse slides (35) are on the same horizontal line.

9. The auxiliary tool for wall plastering on construction sites according to claim 1, characterized in that: A control box (4) is also provided at the upper end of the mobile base (1), and a power source and a controller are provided in the control box (4).