A calibrable and smooth coating mechanism and method for concrete building walls

Abstract

The present invention relates to the technical field of construction equipment, and specifically discloses a calibrable and smooth coating mechanism for concrete building walls, comprising: a moving seat, a moving frame, a lifting mechanism, a transmission mechanism, a coating mechanism, a limit knocking frame, a calibration rod and a pump body; the moving seat is provided with a moving frame in a sliding manner; the lifting mechanism is fixedly provided on one side of the moving frame; the transmission mechanism is rotatably provided on the inner side of the moving frame, and the transmission mechanism can drive the coating mechanism to perform reciprocating coating; the coating mechanism is slidably provided on the moving frame; the limit knocking frame is connected and fixedly provided on the moving frame; a plurality of calibration rods are threadedly provided on the moving seat, and a pump body is connected and fixedly provided on the moving seat. The present invention adopts a limit knocking frame and a coating mechanism to realize that when coating is performed, the limit knocking frame causes the coating mechanism to move up and down while generating an impact on the coating mechanism, thereby generating vibration, so that the contact between the mortar and the wall surface is more sufficient, thereby improving the effect of smooth coating.

Description

Technical Field

[0001] The present application relates to the technical field of building construction equipment, and more specifically, to a calibrable and smooth coating mechanism and method for concrete building walls. Background Art

[0002] When leveling the building wall, mortar needs to be applied to the brick wall surface. The function of the bottom mortar is to make the mortar and the base layer firmly bonded, and it should have very good water retention. The middle layer is mainly for leveling, and sometimes it can be omitted. The surface layer is mainly for obtaining a flat and smooth surface effect. When applying mortar, people use machines instead of manual operations.

[0003] The document with prior art publication number CN114737731A provides a calibrable and flat coating mechanism for concrete building walls. The device can realize the rapid erection support of the equipment by designing support and calibration components, and can use working surfaces with different inclination angles. After the equipment is erected, it can also be fine-tuned to ensure the construction accuracy of the equipment. At the same time, the equipment simplifies the connection structure and adjustment structure, facilitates operation, and saves labor.

[0004] Although the above-mentioned prior art solution can achieve the relevant beneficial effects through the structure of the prior art, it still has the following defects: However, due to the simple structure of the coating mechanism in the device, it is difficult to quickly and evenly coat during coating, resulting in poor practicality.

[0005] In view of this, we propose a calibrable and smooth coating mechanism for concrete building walls. Summary of the invention

[0006] 1. Technical issues to be solved

[0007] The purpose of the present application is to provide a calibrable and smooth coating mechanism for concrete building walls, which solves the technical problems raised in the above-mentioned background technology and achieves the technical effect of rapid and smooth coating.

[0008] 2. Technical solution

[0009] The embodiment of the present application provides a calibrable and smooth coating mechanism for concrete building walls, including: a movable seat, a movable frame, a lifting mechanism, a transmission mechanism, a coating mechanism, a limit striking frame, a calibration rod and a pump body, wherein the movable seat is slidably provided with the movable frame; the lifting mechanism is connected and fixedly provided on one side of the movable frame; the transmission mechanism is rotatably connected and provided on the inner side of the movable frame, and the transmission mechanism can drive the coating mechanism to perform reciprocating coating; the coating mechanism is slidably provided on the movable frame; the limit striking frame is connected and fixedly provided on the movable frame, which can limit the coating mechanism and make the coating mechanism vibrate, thereby improving the coating effect; a plurality of calibration rods are threadedly provided on the movable seat, and a pump body is connected and fixedly provided on the movable seat, and the pump body is connected to the coating mechanism through a hose.

[0010] As an optional solution to the technical solution of the present application document, the lifting mechanism includes a threaded sleeve and a threaded rod. The threaded sleeve is rotatably connected to one side of the movable frame. The threaded sleeve is threadedly connected to the inner wall of the threaded sleeve with a threaded rod. The lower end of the threaded rod is fixedly connected to the movable seat.

[0011] As an optional solution to the technical solution of the present application document, the transmission mechanism includes a motor, a transmission rod and a driving wheel. The motor is connected and fixedly arranged with the moving frame, the output end of the motor is connected and fixedly arranged with the transmission rod, the other end of the transmission rod passes through the inner wall of the moving frame and extends to the outside and is connected and fixedly arranged with the driving wheel; the threaded sleeve is connected and fixedly arranged with a driven wheel, and the driven wheel is meshed with the driving wheel for transmission.

[0012] By adopting the above technical solution, when the transmission rod rotates, the driving wheel connected thereto will drive the threaded sleeve connected to the driven wheel to rotate. At this time, the threaded sleeve will move upward under the action of the fixed threaded rod, thereby driving the movable frame to move upward.

[0013] As an optional solution of the technical solution of this application document, a bending rod is fixedly connected to the middle of the transmission rod, a connecting rod is rotatably connected to the middle of the bending rod, and a pull rod is rotatably connected to the other end of the connecting rod. The other end of the pull rod is rotatably connected to the coating mechanism.

[0014] By adopting the above technical solution, when the transmission rod rotates, the bent rod on the transmission rod will drive the sliding seat connected to the connecting rod to move back and forth.

[0015] As an optional solution to the technical solution of the present application document, the coating mechanism includes a slide seat, a discharge pipe and a coating plate, and the other end of the pull rod is rotatably connected to the slide seat.

[0016] A discharge pipe is fixedly connected through both sides of the slide, one end of the discharge pipe is fixedly connected to the pump body through a hose, and a covering plate is slidably provided on the inner wall of the two ends of the slide, and one end of the covering plate is fixedly connected to the inner wall of the slide through a spring.

[0017] As an optional solution to the technical solution of the present application document, the mobile frame is arranged in a U-shaped structure, and the two ends of one side of the mobile frame are slidably matched with the inner wall of the mobile seat. Two limit bars are fixedly connected to the inner wall of one end of the mobile frame, and the outer wall of the limit bar is slidably matched with the inner wall of the slide seat.

[0018] As an optional solution to the technical solution of the present application document, a raised groove is provided on the limit knocking frame; a guide rod is fixedly connected to one side of the sliding seat close to the limit knocking frame, and the outer wall of the guide rod is slidably matched with the inner wall of the raised groove.

[0019] By adopting the above technical solution, when the slide moves, the guide rod connected to it will slide in the raised groove on the limit knocking frame, so that the slide moves within a certain vertical range when moving laterally.

[0020] As an optional solution to the technical solution of the present application document, the limit knocking frame is provided with a plurality of impact rods in a linear structure slidingly matched thereon, the impact rods are provided in a U-shaped structure, one end of the impact rods is connected and fixedly provided with a tension spring, and the other end of the tension spring is provided in movable contact with the sliding seat.

[0021] As an optional solution to the technical solution of the present application document, one end of the impact rod located in the raised groove is arranged in a conical structure, and the outer wall of the conical end of the impact rod is arranged in sliding contact with the outer wall of the guide rod.

[0022] By adopting the above technical solution, when the guide rod moves, it will contact the inclined surface end of the impact rod, thereby squeezing the impact rod, and then the impact rod will quickly reset under the action of the tension spring and impact on the slide seat.

[0023] A method for using a calibrable and smooth coating mechanism for a concrete building wall comprises the following steps:

[0024] S1. When mortar needs to be applied to the wall, the device can be used for smooth coating. First, the device is moved to a position close to the wall, and then multiple calibration rods are rotated so that one end of the calibration rod contacts the wall, thereby determining the distance between the device and the wall, so as to maintain the smoothness of the coating during coating;

[0025] S2. Start the pump to suck the mortar into the discharge pipe and spray it onto the wall. At this time, start the motor to drive the connected transmission rod to rotate. Then the bending rod on the transmission rod drives the sliding seat connected to the connecting rod to move back and forth. Then, the covering plate on the sliding seat can evenly coat the mortar on the wall.

[0026] S3. When the slide moves, the guide rod connected to it will slide in the raised groove on the limit knocking frame, so that the slide moves in a certain vertical range when moving horizontally, thereby further improving the effect of smooth coating of mortar;

[0027] S4. When the guide rod moves, it will contact the inclined end of the impact rod, thereby squeezing the impact rod. Then the impact rod will quickly reset under the action of the tension spring and hit the slide seat, causing the slide seat to vibrate, so that the mortar will contact the wall more closely, reducing the generation of internal gaps and improving the coating effect.

[0028] S5. When the transmission rod rotates, the driving wheel connected to it will drive the threaded sleeve connected to the driven wheel to rotate. At this time, the threaded sleeve will move upward under the action of the fixed threaded rod, thereby driving the mobile frame to move upward for large-scale coating.

[0029] 3. Beneficial effects

[0030] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0031] 1. The present application adopts the technical means of a limit knocking frame and a coating mechanism, thereby effectively solving the technical problems in the prior art, and further realizing that during coating, the limit knocking frame causes the coating mechanism to move up and down while impacting the coating mechanism, thereby generating vibration, so that the contact between the mortar and the wall surface is more complete, thereby improving the effect of smooth coating.

[0032] 2. The present application sets a transmission mechanism on the movable frame, which can drive the coating mechanism to perform reciprocating coating while driving the lifting mechanism to drive the movable frame to move up and down, thereby automatically adjusting the position for coating and improving the automation and practicality of the device.

[0033] 3. The present application arranges a calibration rod on the movable seat to realize positioning of the distance between the device and the wall, thereby ensuring the flatness of the coating. At the same time, a covering plate is arranged on the sliding seat, and the covering plate can press and smooth the mortar under the action of a spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the overall structure of a calibrable and smooth coating mechanism for concrete building walls disclosed in a preferred embodiment of the present application;

[0035] Figure 2 This is a schematic diagram of the overall structure of the calibrable and smooth coating mechanism for concrete building walls disclosed in a preferred embodiment of the present application;

[0036] Figure 3 This is a schematic diagram of the structure of the lifting mechanism of the calibrable and smooth coating mechanism for concrete building walls disclosed in a preferred embodiment of the present application;

[0037] Figure 4 This is a schematic diagram of the structure of a movable frame and other structures of a calibrated and smooth coating mechanism for concrete building walls disclosed in a preferred embodiment of the present application;

[0038] Figure 5 This is a schematic diagram of the expansion of the limit knocking frame structure of the calibrable flat coating mechanism for concrete building walls disclosed in a preferred embodiment of the present application;

[0039] Figure 6 It is a partial cross-sectional expansion schematic diagram of the coating mechanism structure of a calibrable and flat coating mechanism for concrete building walls disclosed in a preferred embodiment of the present application;

[0040] Explanation of the numbers in the figure: 1. Moving seat; 2. Moving frame; 3. Lifting mechanism; 4. Transmission mechanism; 5. Coating mechanism; 6. Limiting and knocking frame; 7. Calibration rod; 8. Pump body; 301. Threaded sleeve; 302. Threaded rod; 303. Driven wheel; 401. Motor; 402. Transmission rod; 403. Driving wheel; 404. Bending rod; 405. Connecting rod; 406. Pull rod; 501. Sliding seat; 502. Discharging pipe; 503. Covering plate; 504. Spring; 505. Guide rod; 601. Raised groove; 602. Impact rod; 603. Tension spring; 201. Limiting strip. DETAILED DESCRIPTION

[0041] The present application is further described in detail below in conjunction with the accompanying drawings.

[0042] Reference Figure 1 and Figure 2 A calibrated and leveled coating mechanism for a concrete building wall comprises a moving seat 1, a moving frame 2, a lifting mechanism 3, a transmission mechanism 4, a coating mechanism 5, a limit knocking frame 6, a calibration rod 7 and a pump body 8.

[0043] A moving frame 2 is slidably arranged on the moving seat 1;

[0044] The lifting mechanism 3 is connected and fixedly arranged on one side of the moving frame 2;

[0045] The transmission mechanism 4 is rotatably connected to the inner side of the moving frame 2, and the transmission mechanism 4 can drive the coating mechanism 5 to perform reciprocating coating;

[0046] The coating mechanism 5 is slidably mounted on the moving frame 2;

[0047] The limiting knocking frame 6 is connected and fixedly arranged on the moving frame 2, which can limit the coating mechanism 5 and make the coating mechanism 5 vibrate, thereby improving the coating effect;

[0048] A plurality of calibration rods 7 are threadedly connected to the movable seat 1 , and a pump body 8 is fixedly connected to the movable seat 1 . The pump body 8 is connected to the coating mechanism 5 through a hose.

[0049] Reference Figure 3 The lifting mechanism 3 includes a threaded sleeve 301 and a threaded rod 302. The threaded sleeve 301 is rotatably connected to one side of the mobile frame 2. The threaded sleeve 301 is threadedly connected to the inner wall of the threaded sleeve 301. The lower end of the threaded rod 302 is fixedly connected to the mobile seat 1.

[0050] Reference Figure 3 and Figure 4 The transmission mechanism 4 includes a motor 401, a transmission rod 402 and a driving wheel 403. The motor 401 is connected and fixedly arranged with the moving frame 2. The output end of the motor 401 is connected and fixedly arranged with the transmission rod 402. The other end of the transmission rod 402 passes through the inner wall of the moving frame 2 and extends to the outside and is connected and fixedly arranged with the driving wheel 403. The threaded sleeve 301 is connected and fixedly arranged with a driven wheel 303, and the driven wheel 303 is meshed with the driving wheel 403 for transmission.

[0051] A bending rod 404 is fixedly connected to the middle of the transmission rod 402 , a connecting rod 405 is rotatably connected to the middle of the bending rod 404 , and a pulling rod 406 is rotatably connected to the other end of the connecting rod 405 .

[0052] Reference Figure 5 and Figure 6 The coating mechanism 5 includes a slide 501, a discharge pipe 502 and a coating plate 503, and the other end of the pull rod 406 is rotatably connected to the slide 501. The connecting rod 405 drives the slide 501 to reciprocate through the pull rod 406.

[0053] A discharge pipe 502 is fixedly connected and arranged on both sides of the slide 501, one end of which is fixedly connected to the pump body 8 through a hose, and a covering plate 503 is slidably arranged on the inner wall of the two ends of the slide 501, and one end of the covering plate 503 is fixedly connected to the inner wall of the slide 501 through a spring 504. The covering plate 503 can smooth the mortar under the action of the spring 504.

[0054] The mobile frame 2 is arranged in a U-shaped structure, and the two ends of one side of the mobile frame 2 are arranged to slide with the inner wall of the mobile seat 1, and two limit bars 201 are connected and fixedly arranged on the inner wall of one end of the mobile frame 2, and the outer wall of the limit bar 201 is arranged to slide with the inner wall of the slide seat 501. The limit bar 201 enables the slide seat 501 to move stably, and a slide groove is provided on the mobile seat 1, a push handle is connected and fixedly arranged on one side of the mobile seat 1, and a plurality of universal wheels are connected and fixedly arranged on the bottom of the mobile seat 1.

[0055] A raised groove 601 is provided on the position-limiting knocking frame 6, and a guide rod 505 is fixedly connected to one side of the slide 501 near the position-limiting knocking frame 6, and the outer wall of the guide rod 505 is slidably matched with the inner wall of the raised groove 601. The raised groove 601 can enable the slide 501 to move up and down within a certain range.

[0056] The limited knocking frame 6 is provided with a plurality of knocking rods 602 in a linear structure and slidingly cooperated. The knocking rods 602 are provided in a U-shaped structure. A tension spring 603 is connected and fixedly provided at one end of the knocking rod 602, and the other end of the tension spring 603 is provided in movable contact with the slide seat 501. One end of the knocking rod 602 located in the raised groove 601 is provided in a conical structure, and the outer wall of the conical end of the knocking rod 602 is provided in sliding contact with the outer wall of the guide rod 505. Under the action of the tension spring 603, the knocking rod 602 knocks on the slide seat 501 to generate a vibration force.

[0057] Reference Figure 1-Figure 6 A method for using a calibrable flat coating mechanism for a concrete building wall comprises the following steps:

[0058] S1. When mortar needs to be applied to the wall, the device can be used for smooth coating. First, the device is moved to a position close to the wall, and then multiple calibration rods 7 are rotated so that one end of the calibration rod 7 contacts the wall surface, thereby determining the distance between the device and the wall surface, so as to maintain the smoothness of the coating during coating;

[0059] S2, then start the pump body 8 to suck the mortar into the discharge pipe 502 and spray it onto the wall surface. At this time, start the motor 401, so that the motor 401 drives the connected transmission rod 402 to rotate, and then the bending rod 404 on the transmission rod 402 drives the slide 501 connected to the connecting rod 405 to reciprocate, and then cooperate with the covering plate 503 on the slide 501 to evenly coat the mortar on the wall surface;

[0060] S3, when the slide 501 moves, the guide rod 505 connected thereto will slide in the raised groove 601 on the limit knocking frame 6, so that the slide 501 moves within a certain vertical range when moving horizontally, thereby further improving the effect of smooth coating of mortar;

[0061] S4. When the guide rod 505 moves, it will contact the inclined surface end of the impact rod 602, thereby squeezing the impact rod 602. Then, the impact rod 602 will quickly reset under the action of the tension spring 603 and hit the slide 501, causing the slide 501 to vibrate, so that the mortar will contact the wall more closely, reducing the generation of internal gaps and improving the coating effect.

[0062] S5. When the transmission rod 402 rotates, the driving wheel 403 connected thereto drives the threaded sleeve 301 connected to the driven wheel 303 to rotate. At this time, the threaded sleeve 301 moves upward under the action of the fixed threaded rod 302, thereby driving the moving frame 2 to move upward for large-scale coating.

[0063] For example:

[0064] The implementation principle of the calibrated flat coating mechanism for concrete building walls in the embodiment of the present application is as follows: when mortar needs to be applied to the wall, the device can be used for flat coating. First, the device is moved to a position close to the wall, and then multiple calibration rods 7 are rotated so that one end of the calibration rod 7 contacts the wall surface, thereby determining the distance between the device and the wall surface, and achieving the goal of maintaining the flatness of the coating during coating;

[0065] Then, the pump body 8 is started to suck the mortar into the discharge pipe 502 and spray it onto the wall surface. At this time, the motor 401 is started, so that the motor 401 drives the connected transmission rod 402 to rotate, and then the bending rod 404 on the transmission rod 402 drives the slide 501 connected to the connecting rod 405 to reciprocate, and then the covering plate 503 on the slide 501 can be used to evenly coat the mortar on the wall surface;

[0066] Then, when the slide 501 moves, the guide rod 505 connected thereto will slide in the raised groove 601 on the limit knocking frame 6, so that the slide 501 moves in a certain vertical range when moving horizontally, thereby further improving the effect of smooth coating of mortar;

[0067] At the same time, when the guide rod 505 moves, it will contact the inclined surface end of the impact rod 602, thereby squeezing the impact rod 602, and then the impact rod 602 will quickly reset under the action of the tension spring 603, and hit the slide 501, so that the slide 501 vibrates, so that the mortar will contact the wall more closely, reduce the generation of internal gaps, and improve the coating effect;

[0068] When the transmission rod 402 rotates, the driving wheel 403 connected thereto drives the threaded sleeve 301 connected to the driven wheel 303 to rotate. At this time, the threaded sleeve 301 moves upward under the action of the fixed threaded rod 302, thereby driving the moving frame 2 to move upward for large-scale coating.

[0069] The present invention adopts a limited knocking frame and a coating mechanism to achieve that during coating, the limited knocking frame causes the coating mechanism to move up and down while impacting the coating mechanism, thereby generating vibration, so that the mortar and the wall surface are in more complete contact, thereby improving the effect of smooth coating. By arranging a transmission mechanism on the mobile frame, the lifting mechanism can be driven while driving the coating mechanism to perform reciprocating coating, and the mobile frame can be driven to move up and down, so as to achieve automatic adjustment of the position for coating, thereby improving the automation and practicality of the device.

[0070] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A calibrable and smooth coating mechanism for concrete building walls, comprising: a moving seat (1), a moving frame (2), a lifting mechanism (3), a transmission mechanism (4), a coating mechanism (5), a limit knocking frame (6), a calibration rod (7) and a pump body (8), characterized in that: The movable seat (1) is provided with a movable frame (2) in a sliding manner; The lifting mechanism (3) is connected and fixedly arranged on one side of the moving frame (2); The transmission mechanism (4) is rotatably connected to the inner side of the moving frame (2), and the transmission mechanism (4) can drive the coating mechanism (5) to perform reciprocating coating; The coating mechanism (5) is slidably mounted on the movable frame (2); The limiting knocking frame (6) is connected and fixedly arranged on the moving frame (2), so as to limit the position of the coating mechanism (5) and make the coating mechanism (5) vibrate, thereby improving the coating effect; A plurality of calibration rods (7) are threadedly connected to the movable seat (1), a pump body (8) is fixedly connected to the movable seat (1), and the pump body (8) is connected to the coating mechanism (5) via a hose; The lifting mechanism (3) comprises a threaded sleeve (301) and a threaded rod (302); the threaded sleeve (301) is rotatably connected to one side of the moving frame (2); the threaded sleeve (301) is threadedly connected to the inner wall of the threaded sleeve (301); and the lower end of the threaded rod (302) is fixedly connected to the moving seat (1); The transmission mechanism (4) comprises a motor (401), a transmission rod (402) and a driving wheel (403); the motor (401) is connected and fixedly arranged with the moving frame (2); the output end of the motor (401) is fixedly arranged with the transmission rod (402); the other end of the transmission rod (402) passes through the inner wall of the moving frame (2) and extends to the outside and is connected and fixedly arranged with the driving wheel (403); the threaded sleeve (301) is connected and fixedly arranged with a driven wheel (303); the driven wheel (303) is meshed and transmission-arranged with the driving wheel (403); A bending rod (404) is fixedly arranged in the middle of the transmission rod (402), a connecting rod (405) is rotatably arranged in the middle of the bending rod (404), and a pulling rod (406) is rotatably arranged at the other end of the connecting rod (405); The coating mechanism (5) comprises a slide (501), a discharge pipe (502) and a covering plate (503); one end of the pull rod (406) is rotatably connected to the slide (501); a discharge pipe (502) is fixedly provided through both sides of the slide (501); one end of the discharge pipe (502) is fixedly connected to the pump body (8) through a hose; a covering plate (503) is slidably provided on the inner wall of both ends of the slide (501); one end of the covering plate (503) is fixedly connected to the inner wall of the slide (501) through a spring (504); The position-limiting knocking frame (6) is provided with a raised groove (601); a guide rod (505) is fixedly connected to one side of the slide seat (501) close to the position-limiting knocking frame (6), and the outer wall of the guide rod (505) is slidably matched with the inner wall of the raised groove (601); The position-limiting knocking frame (6) is provided with a plurality of striking rods (602) in a linear structure and slidingly cooperates therewith. The striking rods (602) are provided in a U-shaped structure. A tension spring (603) is fixedly provided at one end of the striking rod (602). The other end of the tension spring (603) is provided in movable contact with the sliding seat (501). One end of the impact rod (602) located in the raised groove (601) is arranged in a conical structure, and the outer wall of the conical end of the impact rod (602) is arranged in sliding contact with the outer wall of the guide rod (505).

2. The calibrable and smooth coating mechanism for concrete building walls according to claim 1, characterized in that: The movable frame (2) is arranged in a U-shaped structure, and the two ends of one side of the movable frame (2) are arranged to slide and cooperate with the inner wall of the movable seat (1), and two limit bars (201) are fixedly arranged on the inner wall of one end of the movable frame (2), and the outer wall of the limit bar (201) is arranged to slide and cooperate with the inner wall of the sliding seat (501).

3. A method for using a calibrated and smooth coating mechanism for concrete building walls, characterized in that The following steps are involved: S1. When mortar needs to be applied to a wall, the device is first moved to a position close to the wall, and then a plurality of calibration rods (7) are rotated so that one end of the calibration rods (7) contacts the wall surface, thereby determining the distance between the device and the wall surface, so as to maintain the flatness of the coating during application; S2, start the pump body (8) to suck the mortar into the discharge pipe (502) and spray it onto the wall surface. At this time, start the motor (401) to drive the transmission rod (402) to rotate, and then the bending rod (404) on the transmission rod (402) drives the slide seat (501) connected to the connecting rod (405) to move back and forth, and then cooperate with the covering plate (503) on the slide seat (501) to evenly coat the mortar on the wall surface; S3. When the slide seat (501) moves, the guide rod (505) connected thereto will slide in the raised groove (601) on the limit knocking frame (6), so that the slide seat (501) moves within a certain vertical range when moving horizontally, thereby further improving the effect of smooth coating of mortar; S4. When the guide rod (505) moves, it contacts the inclined surface end of the impact rod (602), thereby squeezing the impact rod (602). Then, the impact rod (602) quickly resets under the action of the tension spring (603) and impacts the slide seat (501), causing the slide seat (501) to vibrate, so that the mortar contacts the wall more closely, reducing the generation of internal gaps and improving the coating effect. S5. When the transmission rod (402) rotates, the driving wheel (403) connected thereto drives the threaded sleeve (301) connected to the driven wheel (303) to rotate. At this time, the threaded sleeve (301) moves upward under the action of the fixed threaded rod (302), thereby driving the movable frame (2) to move upward, thereby performing coating over a large area.

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