Plastering equipment for building construction

Abstract

The present invention provides a plastering device for construction, which belongs to the technical field of plastering devices, and includes a vehicle body, a lifting module, a scraper, a connecting structure, a first driving component, a shotcrete main pipe, a second driving component and a nozzle. The lifting module is fixedly mounted on the vehicle body, and the lifting module has a slider. The scraper is connected to the slider. The connecting structure includes a connecting component, and the connecting component is rotatably connected to the slider. The first driving component is used to drive the connecting component to rotate. The shotcrete main pipe is connected to the connecting component, and the shotcrete main pipe can rotate. The second driving component is used to drive the shotcrete main pipe to rotate. The nozzle is fixedly connected to the shotcrete main pipe and is connected to the inside of the shotcrete main pipe. The plastering device for construction provided by the present invention can avoid the problem that the nozzle is not suitable for spraying slurry from top to bottom and smoothing the slurry because the nozzle is located above the scraper.

Description

Technical Field

[0001] The invention belongs to the technical field of plastering devices, and more specifically, relates to a plastering device for building construction. Background Art

[0002] Wall plastering is an operation in building construction. Now, the wall is generally plastered by a plastering device. The Chinese patent with application number "2024206876687" discloses a construction engineering plastering machine, including a nozzle, a scraper, a large mud pump, a preparation bucket, etc. The large mud pump extracts the slurry inside the preparation bucket and sprays the slurry onto the wall through the nozzle, and smoothes the slurry by raising and lowering the scraper. Since the nozzle is located above the scraper, it is suitable for spraying slurry from bottom to top and smoothing the slurry, but not suitable for spraying slurry from top to bottom and smoothing the slurry, and the function is relatively single. Summary of the invention

[0003] The object of the present invention is to provide a plastering device for building construction, aiming to solve the problem that the spray head is located above the scraper, so it is not suitable for spraying slurry from top to bottom and smoothing the slurry.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a plastering device for construction, including a vehicle body, a lifting module, a scraper, a connecting structure, a first drive assembly, a shotcrete main pipe, a second drive assembly and a nozzle. The lifting module is fixedly mounted on the vehicle body, and the lifting module has a slider that can be lifted and lowered. The scraper is vertically arranged and connected to the slider. The connecting structure includes a connecting assembly, the connecting assembly is rotatably connected to the slider, and the rotation axis of the connecting assembly is horizontally arranged and parallel to the scraper. The first drive assembly is used to drive the connecting assembly to rotate. The shotcrete main pipe is parallel to the rotation axis of the connecting assembly, the shotcrete main pipe is connected to the connecting assembly, and the shotcrete main pipe can rotate around its axis. The second drive assembly is used to drive the shotcrete main pipe to rotate. The nozzle is fixedly connected to the shotcrete main pipe and is connected to the inside of the shotcrete main pipe. Among them, the rotation of the connecting assembly can make the shotcrete main pipe reach above or below the scraper. When the scraper is parallel to the wall and the shotcrete main pipe is located at a preset position above or below the scraper, the rotation of the shotcrete main pipe within a preset angle range can make the nozzle face the wall.

[0005] In a possible implementation, the connection assembly includes a connection ring and a connection pipe. The connection ring is sleeved outside the shotcrete main pipe, and the connection ring is provided with a communication hole arranged along the radial direction of the connection ring. One end of the connection pipe is fixedly connected to the connection ring and communicated with the communication hole. The two ends of the shotcrete main pipe are closed, and the side wall of the shotcrete main pipe is provided with a docking hole, which extends along the circumference of the shotcrete main pipe. When the shotcrete main pipe rotates within a preset angle range, the docking hole remains in communication with the communication hole.

[0006] In a possible implementation, the number of the connecting structures is two, and the two connecting structures are symmetrically arranged, and the plastering device for construction further includes two limiting rings. The two limiting rings are both fixed on the spraying main pipe. The two connecting rings are located between the two limiting rings and are respectively located in contact with the two limiting rings.

[0007] In a possible implementation, the communication structure further includes a fixed pipe. The fixed pipe is fixedly connected to the slider, and the fixed pipe has a connecting section coaxially arranged with the rotation axis of the connecting assembly, and one end of the fixed pipe is located on the connecting section. The connecting pipe is an L-shaped structure, including a docking section rotatably sleeved on the connecting section.

[0008] In a possible implementation, the slider has two limit parts, and the two limit parts are spaced apart along the rotation axis direction of the connecting component. The first driving component includes a power shaft, an intermediate sleeve, a second driving motor and two meshing second gears. The power shaft is arranged along the rotation axis of the connecting component and can rotate to penetrate the two limit parts. The power shaft is fixedly connected to the two connecting pipes. The intermediate sleeve is sleeved on the power shaft and fixedly connected to the power shaft. The intermediate sleeve is located between the two limit parts and fits with the two limit parts. The second driving motor is fixedly mounted on the slider. Two meshing second gears are respectively sleeved and fixed on the output shaft of the power shaft and the second driving motor.

[0009] In a possible implementation, the communication structure further includes a first slurry pump. The first slurry pump is arranged on the fixed pipe. The plastering device for construction also includes a material storage box, which is fixedly connected to the other end of the fixed pipe and communicated with the fixed pipe, and a feed hole is arranged on the top wall of the material storage box.

[0010] In a possible implementation, the plastering device for construction further includes a preparation tank, a discharge pipe and a second slurry pump. The preparation tank is fixedly mounted on the vehicle body. One end of the discharge pipe is fixedly connected to the bottom wall of the preparation tank and communicates with the inside of the preparation tank. The second slurry pump is arranged on the discharge pipe.

[0011] In one possible implementation, the discharge pipe has a vertical section that is vertically arranged, and the other end of the discharge pipe is located on the vertical section and arranged downward; the storage box is located below the vertical section, and the feed hole is coaxially arranged with the vertical section, and the lifting and lowering of the storage box enables the vertical section to penetrate into or exit the feed hole.

[0012] In a possible implementation, the plastering device for construction further includes a sliding shaft, a fixing member and a third driving assembly. The sliding shaft is perpendicular to the scraper and is slidably arranged in the slider. The fixing member is fixedly connected to the sliding shaft. The third driving assembly has a piston rod that can be extended and retracted along the sliding direction of the sliding shaft, and the piston rod of the third driving assembly is fixedly connected to the fixing member.

[0013] In a possible implementation, the plastering device for construction further includes an opening and closing plate, which is horizontally arranged and fits against the top wall of the material storage box, is fixedly connected to the fixing member, and can open and close the feed hole as the sliding shaft slides.

[0014] In the embodiment of the present application, the scraper is made parallel to the wall by moving the vehicle body. The first drive assembly drives the connecting assembly to rotate so that the spray pipe reaches a preset position above or below the scraper, and then the second drive assembly drives the spray pipe to rotate so that the nozzle faces the wall, injects slurry into the spray pipe, and drives the slider to rise and fall. The slurry in the spray pipe is sprayed onto the wall through the nozzle, and the scraper flattens the slurry on the wall. Since the nozzle can be located above the scraper or below the scraper, the problem that the nozzle is located above the scraper and is not suitable for spraying slurry from top to bottom and smoothing the slurry can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of the structure of a plastering device for building construction provided by an embodiment of the present invention;

[0017] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of local A in FIG.

[0018] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of the local B in FIG.

[0019] Figure 4 for Figure 1 Schematic diagram of the enlarged structure of the local C in FIG.

[0020] Figure 5 for Figure 1 Schematic diagram of the enlarged structure of the local D in FIG.

[0021] Figure 6 A schematic diagram of the structure of the plastering device for construction provided by an embodiment of the present invention after the vehicle body is removed;

[0022] Figure 7 A schematic diagram of a connecting structure in a plastering device for building construction provided by an embodiment of the present invention;

[0023] Figure 8 A schematic cross-sectional view of the structure after the connection assembly in the plastering device for building construction provided by an embodiment of the present invention is connected to the spraying main pipe;

[0024] Fig. 9 for Figure 8 Schematic diagram of the enlarged structure of the local E in FIG.

[0025] Fig.10 A schematic diagram of the structure of a shotcrete main pipe in a plastering device for building construction provided by an embodiment of the present invention;

[0026] Fig.11 A schematic structural diagram of a sliding block in a plastering device for building construction provided by an embodiment of the present invention.

[0027] In the figure: 1, vehicle body; 21, slider; 211, stopper; 22, frame; 221, guide shaft; 23, driving screw; 24, first driving motor; 25, first gear; 3, scraper; 4, connecting structure; 41, connecting assembly; 411, connecting ring; 4111, connecting hole; 412, connecting pipe; 4121, docking section; 42, fixing pipe; 421, connecting section; 43, first slurry pump; 5, first driving assembly; 51, power shaft; 52, intermediate sleeve ; 53. Second drive motor; 54. Second gear; 6. Spraying main pipe; 61. Docking hole; 7. Second drive assembly; 71. Supporting member; 72. Third drive motor; 73. Third gear; 8. Spray head; 9. Limiting ring; 10. Storage box; 101. Feed hole; 110. Preparation tank; 120. Discharge pipe; 1201. Vertical section; 130. Second slurry pump; 140. Sliding shaft; 150. Fixing member; 160. Third drive assembly; 170. Opening and closing plate. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] It should be further explained that the drawings and implementation modes of the present invention mainly describe the concept of the present invention. On the basis of this concept, the specific forms and settings of some connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, on the premise that those skilled in the art understand the concept of the present invention, those skilled in the art can implement the above-mentioned specific forms and settings in a well-known manner.

[0030] When an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0031] The directions or positional relationships indicated by terms such as “length”, “width”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0032] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, and "several" means one or more, unless otherwise clearly and specifically defined.

[0033] Please also read Figure 1 , Figure 5 and Figure 6, the plastering device for construction provided by the present invention is now described. The plastering device for construction includes a vehicle body 1, a lifting module, a scraper 3, a connecting structure 4, a first driving assembly 5, a shotcrete main pipe 6, a second driving assembly 7 and a nozzle 8. The lifting module is fixedly mounted on the vehicle body 1, and the lifting module has a slider 21 that can be lifted and lowered. The scraper 3 is vertically arranged and connected to the slider 21. The connecting structure 4 includes a connecting assembly 41, which is rotatably connected to the slider 21, and the rotation axis of the connecting assembly 41 is horizontally arranged and parallel to the scraper 3. The first driving assembly 5 is used to drive the connecting assembly 41 to rotate. The shotcrete main pipe 6 is parallel to the rotation axis of the connecting assembly 41, and the shotcrete main pipe 6 is connected to the connecting assembly 41, and the shotcrete main pipe 6 can rotate around its axis. The second driving assembly 7 is used to drive the shotcrete main pipe 6 to rotate. The nozzle 8 is fixedly connected to the shotcrete main pipe 6 and is connected to the inside of the shotcrete main pipe 6. Among them, the rotation of the connecting component 41 can make the spraying main pipe 6 reach above or below the scraper 3. When the scraper 3 is parallel to the wall and the spraying main pipe 6 is located at a preset position above or below the scraper 3, the rotation of the spraying main pipe 6 within the preset angle range can make the nozzle 8 face the wall.

[0034] Compared with the prior art, the plastering device for construction provided by the present invention makes the scraper 3 parallel to the wall surface through the movement of the vehicle body 1. The first driving component 5 drives the connecting component 41 to rotate, so that the spraying main pipe 6 reaches the preset position above or below the scraper 3, and then the second driving component 7 drives the spraying main pipe 6 to rotate, so that the nozzle 8 faces the wall surface, injects slurry into the spraying main pipe 6, and drives the slider 21 to rise and fall, and the slurry in the spraying main pipe 6 is sprayed onto the wall surface through the nozzle 8, and the scraper 3 scrapes the slurry on the wall surface. Since the nozzle 8 can be located above the scraper 3 or below the scraper 3, it can avoid the problem that the nozzle 8 is located above the scraper 3, so it is not suitable for spraying slurry from top to bottom and smoothing the slurry.

[0035] In this embodiment, the lifting module also includes a frame 22, a driving screw 23, a first driving motor 24 and two meshing first gears 25. The frame 22 is used to be fixed on the vehicle body 1, and the frame 22 has two vertically arranged guide shafts 221. The driving screw 23 is vertically arranged and rotatably connected to the frame 22. The first driving motor 24 is fixed on the frame 22. The two meshing first gears 25 are respectively sleeved and fixed on the output shafts of the driving screw 23 and the first driving motor 24. Among them, the slider 21 is slidably sleeved on the two guide shafts 221 and threadedly connected to the driving screw 23. The output shaft of the first driving motor 24 drives the driving screw 23 to rotate through the two meshing first gears 25, so that the slider 21 threadedly connected to the driving screw 23 is lifted and lowered.

[0036] Furthermore, there may be a plurality of nozzles 8, and the plurality of nozzles 8 are sequentially spaced apart along the axial direction of the spraying main pipe 6, thereby expanding the area of ​​the spraying material.

[0037] In some embodiments, the above-mentioned characteristic connection component 41 can be used as follows Figure 1 , Figure 8 , Fig. 9 and Fig.10 See the structure shown. Figure 1 , Figure 8 , Fig. 9 and Fig.10 , the connection assembly 41 includes a connection ring 411 and a connection pipe 412. The connection ring 411 is sleeved outside the shotcrete main pipe 6, and the connection ring 411 is provided with a communication hole 4111 arranged along the radial direction of the connection ring 411. One end of the connection pipe 412 is fixedly connected to the connection ring 411 and communicated with the communication hole 4111. Among them, the two ends of the shotcrete main pipe 6 are closed, and the side wall of the shotcrete main pipe 6 is provided with a docking hole 61, which extends along the circumference of the shotcrete main pipe 6. When the shotcrete main pipe 6 rotates within a preset angle range, the docking hole 61 is connected with the communication hole 4111. The shotcrete main pipe 6 located in the connection ring 411 can rotate around its axis. When the shotcrete main pipe 6 reaches the preset position above or below the scraper 3, the shotcrete main pipe 6 rotates within a preset angle range to make the nozzle 8 face the wall. In this process, the docking hole 61 is connected with the communication hole 4111, so that the slurry can be injected into the shotcrete main pipe 6 through the connection pipe 412.

[0038] In some embodiments, see Figure 6 The number of the connecting structures 4 is two, and the two connecting structures 4 are symmetrically arranged. The plastering device for construction also includes two limiting rings 9. The two limiting rings 9 are both sleeved and fixed on the shotcrete main pipe 6. Among them, the two connecting rings 411 are located between the two limiting rings 9 and are respectively located at the two limiting rings 9. The two limiting rings 9 are limited by the two connecting rings 411 to limit the movement of the shotcrete main pipe 6 along its axial direction.

[0039] In some embodiments, the above-mentioned characteristic connection structure 4 can be adopted as follows Figure 1 , Figure 2 and Figure 7 See the structure shown. Figure 1 , Figure 2 and Figure 7The connecting structure 4 further includes a fixed pipe 42. The fixed pipe 42 is fixedly connected to the slider 21, and the fixed pipe 42 has a connecting section 421 coaxially arranged with the rotation axis of the connecting component 41, and one end of the fixed pipe 42 is located on the connecting section 421. Among them, the connecting pipe 412 is an L-shaped structure, including a docking section 4121 rotatably sleeved on the connecting section 421. The rotational connection between the connecting component 41 and the slider 21 is indirectly realized by the rotational cooperation between the docking section 4121 and the connecting section 421, and grouting can be injected into the connecting pipe 412 through the fixed pipe 42.

[0040] In some embodiments, see Figure 1 , Figure 3 and Fig.11 The slider 21 has two limiting parts 211, and the two limiting parts 211 are arranged at intervals along the rotation axis direction of the connecting component 41. The first driving component 5 includes a power shaft 51, an intermediate sleeve 52, a second driving motor 53 and two meshing second gears 54. The power shaft 51 is arranged along the rotation axis of the connecting component 41 and can rotate to penetrate the two limiting parts 211. The power shaft 51 is fixedly connected to the two connecting pipes 412. The intermediate sleeve 52 is sleeved on the power shaft 51 and fixedly connected to the power shaft 51. The intermediate sleeve 52 is located between the two limiting parts 211 and fits the two limiting parts 211. The second driving motor 53 is fixedly arranged on the slider 21. The two meshing second gears 54 are sleeved and fixed on the output shafts of the power shaft 51 and the second driving motor 53 respectively. The two limiting parts 211 can limit the movement of the power shaft 51 along its axial direction through the intermediate sleeve 52, thereby preventing the docking section 4121 from sliding out of the connecting section 421. The output shaft of the second driving motor 53 drives the power shaft 51 to rotate through two meshing second gears 54 , and the power shaft 51 drives the connecting assembly 41 to rotate.

[0041] For further information, see Figure 1 and Figure 4 The second driving assembly 7 includes a supporting member 71, a third driving motor 72 and two meshing third gears 73. The supporting member 71 is fixedly connected to the two connecting pipes 412. The third driving motor 72 is fixedly mounted on the supporting member 71. The two meshing third gears 73 are respectively sleeved and fixed on the output shaft of the shotcrete main pipe 6 and the third driving motor 72. The output shaft of the third driving motor 72 drives the shotcrete main pipe 6 to rotate through the two meshing third gears 73.

[0042] In some embodiments, see Figure 1 and Figure 6The communication structure 4 further includes a first slurry pump 43. The first slurry pump 43 is arranged on the fixed pipe 42. The plastering device for construction also includes a storage box 10, which is fixedly connected to the other end of the fixed pipe 42 and communicated with the fixed pipe 42. A feed hole 101 is arranged on the top wall of the storage box 10. The slurry is input into the storage box 10 through the feed hole 101, and the first slurry pump 43 extracts the slurry in the storage box 10 through the fixed pipe 42 and inputs it into the connecting pipe 412.

[0043] In some embodiments, see Figure 1 and Figure 6 The plastering device for construction also includes a preparation tank 110, a discharge pipe 120 and a second slurry pump 130. The preparation tank 110 is fixedly mounted on the vehicle body 1. One end of the discharge pipe 120 is fixedly connected to the bottom wall of the preparation tank 110 and communicated with the inside of the preparation tank 110. The second slurry pump 130 is arranged on the discharge pipe 120. The raw materials for preparing the slurry are placed in the preparation tank 110, and the slurry is prepared by stirring the raw materials in the preparation tank 110. The second slurry pump 130 extracts the prepared slurry in the preparation tank 110 through the discharge pipe 120, and then sends it into the storage box 10. In this way, the slurry can be prepared while the plastering operation is being performed.

[0044] In this embodiment, the preparation tank 110 may be a preparation tank 110 with a stirring component in the prior art, and the stirring component is used to stir the raw materials in the preparation tank 110 , thereby avoiding manual stirring of the raw materials in the preparation tank 110 .

[0045] In some embodiments, see Figure 1 , the discharge pipe 120 has a vertical section 1201 arranged vertically, and the other end of the discharge pipe 120 is located on the vertical section 1201 and arranged downward; the storage box 10 is located below the vertical section 1201, and the feed hole 101 is coaxially arranged with the vertical section 1201. The lifting and lowering of the storage box 10 enables the vertical section 1201 to penetrate into or exit the feed hole 101. The storage box 10 fixed on the fixed pipe 42 can be lifted and lowered with the slider 21. When the lifting of the storage box 10 enables the vertical section 1201 to penetrate into the feed hole 101, the second slurry pump 130 extracts slurry from the preparation tank 110 and injects it into the storage box 10 through the vertical section 1201.

[0046] In some embodiments, see Figure 1 and Figure 6The plastering device for construction also includes a sliding shaft 140, a fixing member 150 and a third driving assembly 160. The sliding shaft 140 is perpendicular to the scraper 3 and is slidably arranged in the slider 21. The fixing member 150 is fixedly connected to the sliding shaft 140. The third driving assembly 160 has a piston rod that can be extended and retracted along the sliding direction of the sliding shaft 140, and the piston rod of the third driving assembly 160 is fixedly connected to the fixing member 150. The scraper 3 is slidably connected to the slider 21 through the sliding shaft 140. The extension and retraction of the piston rod of the third driving assembly 160 can be converted into the sliding of the sliding shaft 140 through the fixing member 150, so that the distance between the scraper 3 and the wall surface can be adjusted to a suitable size. In this embodiment, the third driving assembly 160 can adopt one of a hydraulic cylinder, a pneumatic cylinder or an electric push rod.

[0047] In some embodiments, see Figure 1 The plastering device for construction also includes an opening and closing plate 170. The opening and closing plate 170 is horizontally arranged and fits the top wall of the storage box 10. The opening and closing plate 170 is fixedly connected to the fixing member 150. The opening and closing plate 170 can open and close the feed hole 101 with the sliding of the sliding shaft 140. When the device is restricted, the sliding of the sliding shaft 140 causes the opening and closing plate 170 to close the feed hole 101, thereby preventing impurities from entering the storage box 10.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plastering device for building construction, characterized in that: include: Vehicle body; A lifting module is fixedly mounted on the vehicle body, and the lifting module has a sliding block capable of lifting and lowering; A scraper, arranged vertically and connected to the slider; A connecting structure, comprising a connecting assembly, wherein the connecting assembly is rotatably connected to the slider, and a rotation axis of the connecting assembly is horizontally arranged and parallel to the scraper; A first driving assembly, used to drive the connecting assembly to rotate; A shotcrete main pipe is parallel to the rotation axis of the connecting assembly, the shotcrete main pipe is connected to the connecting assembly, and the shotcrete main pipe can rotate around its axis; A second driving assembly is used to drive the shotcrete main pipe to rotate; A spray head, fixedly connected to the spray main pipe and communicated with the inside of the spray main pipe; The rotation of the connecting assembly can make the spray pipe reach above or below the scraper. When the scraper is parallel to the wall and the spray pipe is located at a preset position above or below the scraper, the rotation of the spray pipe within a preset angle range can make the nozzle face the wall. The connection component comprises: A connecting ring is sleeved outside the shotcrete main pipe, and the connecting ring is provided with a communicating hole arranged along the radial direction of the connecting ring; A connecting pipe, one end of which is fixedly connected to the connecting ring and communicated with the communicating hole; Wherein, both ends of the shotcrete main pipe are closed, and a docking hole is provided on the side wall of the shotcrete main pipe. The docking hole extends along the circumference of the shotcrete main pipe. When the shotcrete main pipe rotates within a preset angle range, the docking hole remains connected with the connecting hole.

2. The plastering device for construction as claimed in claim 1, characterized in that: The number of the connecting structures is two, and the two connecting structures are symmetrically arranged. The plastering device for building construction also includes: Two limit rings are both sleeved and fixed on the shotcrete main pipe; Wherein, the two connecting rings are located between the two limiting rings and are respectively fitted with the two limiting rings.

3. The plastering device for construction as claimed in claim 2, characterized in that: The communication structure further includes: A fixed tube, fixedly connected to the slider, the fixed tube having a connecting section coaxially arranged with the rotation axis of the connecting assembly, one end of the fixed tube being located on the connecting section; Wherein, the connecting pipe is in an L-shaped structure, and comprises a docking section rotatably sleeved on the connecting section.

4. The plastering device for construction as claimed in claim 3, characterized in that: The slider has two limiting parts, and the two limiting parts are arranged at intervals along the rotation axis direction of the connecting assembly. The first driving assembly includes: A power shaft is arranged along the rotation axis of the connecting assembly and can rotate to penetrate the two limiting parts, and the power shaft is fixedly connected to the two connecting pipes; An intermediate sleeve is sleeved on the power shaft and fixedly connected to the power shaft, and the intermediate sleeve is located between the two limiting portions and fits the two limiting portions; A second driving motor is fixed on the slider; Two meshing second gears are respectively sleeved and fixed on the power shaft and the output shaft of the second driving motor.

5. The plastering device for construction as claimed in claim 3, characterized in that: The communication structure further includes: A first slurry pump is arranged on the fixed pipe; Wherein, the plastering device for construction also includes a material storage box, which is fixedly connected to the other end of the fixed pipe and communicated with the fixed pipe, and the top wall of the material storage box is provided with a feeding hole.

6. The plastering device for construction as claimed in claim 5, characterized in that: Also includes: A preparation tank is fixedly mounted on the vehicle body; A discharge pipe, one end of which is fixedly connected to the bottom wall of the preparation tank and communicated with the inside of the preparation tank; The second slurry pump is arranged on the discharge pipe.

7. The plastering device for construction as claimed in claim 6, characterized in that: The discharge pipe has a vertical section that is vertically arranged, and the other end of the discharge pipe is located on the vertical section and arranged downward; the storage box is located below the vertical section, and the feed hole is coaxially arranged with the vertical section. The lifting and lowering of the storage box enables the vertical section to penetrate into or exit the feed hole.

8. The plastering device for construction as claimed in claim 7, characterized in that: Also includes: A sliding shaft, which is perpendicular to the scraper and slidably penetrates the slider; A fixing member, fixedly connected to the sliding shaft; The third driving assembly has a piston rod that can be extended and retracted along the sliding direction of the sliding shaft, and the piston rod of the third driving assembly is fixedly connected to the fixing member.

9. The plastering device for construction as claimed in claim 8, characterized in that: Also includes: The opening and closing plate is horizontally arranged and fits with the top wall of the material storage box. The opening and closing plate is fixedly connected to the fixing member. The opening and closing plate can open and close the feeding hole as the sliding shaft slides.

Images