A building wall plastering device

By introducing lifting, angle adjustment, and quick-release mechanisms into the plastering device, the adaptability and operational difficulty issues of the existing device have been resolved, enabling flexible angle adjustment, quick assembly and disassembly, and stable operation, thereby improving the adaptability and maintenance efficiency of the equipment.

CN224549566UActive Publication Date: 2026-07-24CHINA CHEM SOUTH CONSTR INVESTMENT (JIANGXI) CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CHEM SOUTH CONSTR INVESTMENT (JIANGXI) CO LTD
Filing Date
2025-08-14
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing building wall plastering devices lack angle adaptive adjustment, quick disassembly, and telescopic adjustment functions, resulting in high operation difficulty, high maintenance costs, and limited adaptability.

Method used

A plastering device was designed, comprising a base plate, a lifting device, an angle adjustment device, and a quick-release mechanism. The height is adjusted by a screw drive driven by a brake motor, the angle is adjusted by a ball joint, the quick-release mechanism enables rapid assembly and disassembly, the telescopic adjustment component enables telescopic adjustment, and it is equipped with casters for easy movement.

Benefits of technology

The plastering device can be adjusted from 15 to 30 degrees, and can be quickly disassembled and assembled, which improves the versatility and adaptability of the equipment, enhances maintenance efficiency, and ensures operational stability and safety through the self-locking function of the casters.

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Abstract

The utility model discloses a kind of building wall plastering device, including bottom plate and plastering device, the top opposite sides of bottom plate are evenly installed with hollow support, support is perpendicular to bottom plate, the inside surface of support is opened with recess along vertical direction, lifting device is installed in the inside of support, lifting plate is installed between two supports by lifting device, the bottom of plastering device is installed with angle adjusting device, the bottom of angle adjusting device is installed with receiving plate, quick-release mechanism is arranged in the bottom of receiving plate, the bottom of quick-release mechanism is connected with telescopic adjusting assembly, the utility model can drive plastering device to complete 15-30 ° angle adaptive adjustment by setting angle adjusting mechanism, cope with some special angle setting building wall, increase plastering flexible practicality, simple and quick operation, by inserting plug rod into boss, complete with receiving plate limit connection under the elastic support of compression spring, when disassembling, hold plug rod and extract it from boss place, quick disassembly can be completed.
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Description

Technical Field

[0001] This utility model belongs to the field of building construction technology and relates to a building wall plastering device. Background Technology

[0002] Plastering machines are a type of construction machinery. They are ideal equipment for plastering interior walls of residential buildings, office buildings, and hardened houses. They can plaster cement walls, brick-concrete walls, and hollow walls. Applicable plasters include white sand plaster, cement plaster, and foamed mortar plaster. They can be used for walls up to 4 cm thick and up to 3.5 meters high. According to data, it is predicted that the demand for plastering machines will increase significantly in the next two years and even in the coming years. The market prospects for plastering machines are good both domestically and internationally.

[0003] Chinese Patent Publication No. CN211666195U discloses a wall plastering device. This device efficiently and stably completes wall plastering tasks, improving the mechanization of plastering operations and increasing work efficiency. It also avoids the problems of unstable contact between the plastering roller and the wall surface and difficulty in guaranteeing plastering quality caused by the unstable fixing of the device body. However, this device does not have an adaptive angle adjustment function for the plastering device, making it difficult to operate when dealing with building walls of different angles. In addition, the device does not have a quick disassembly function for the plastering device, resulting in a high degree of difficulty in repairing and replacing parts, affecting the project progress and increasing economic costs. The device also lacks a telescopic adjustment function for the plastering device, which limits its ability to deal with building walls of different heights. Summary of the Invention

[0004] To achieve the above objectives, this utility model provides a building wall plastering device that solves the technical problems of existing building wall plastering devices, which lack angle adaptive adjustment function, quick disassembly function and telescopic adjustment function, resulting in high operation difficulty, high maintenance cost and limited adaptability.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a building wall plastering device, including a base plate and a plastering device, hollow supports are installed on both opposite sides of the top of the base plate, the supports are perpendicular to the base plate, the inner side of the supports is provided with a groove in the vertical direction, a lifting device is installed inside the supports, a lifting plate is installed between the two supports through the lifting device, an angle adjustment device is installed at the bottom of the plastering device, a receiving plate is installed at the bottom of the angle adjustment device, quick release mechanisms are provided on both sides of the bottom of the receiving plate, and a telescopic adjustment component is connected to the bottom of the quick release mechanism.

[0006] Furthermore, the lifting device includes a brake motor installed at the bottom of the bracket, a lead screw installed on the top of the brake motor, and a slider with a spiral drive on the outer surface of the lead screw. The slider is fixedly connected to the lifting plate through a groove.

[0007] Furthermore, the angle adjustment device includes an adjustment plate installed at the bottom of the plastering device. The adjustment plate is fixedly connected to the plastering device by external bolts. A swing rod is installed at the bottom of the adjustment plate. A ball joint is sleeved at the center of the swing rod. Side plates are installed on both sides of the ball joint. The bottom of the side plates is fixedly connected to the receiving plate. A threaded locking handle is connected to one side of the side plate through to the ball joint.

[0008] Furthermore, a protrusion is installed on the bottom of the receiving plate, and the quick-release mechanism includes an open rectangular block installed on both sides of the bottom of the receiving plate with the opening facing the protrusion. A compression spring is installed inside the open rectangular block, and one end of the compression spring is connected to a plug that slides at the opening. The plug is inserted into the inside of the protrusion.

[0009] Furthermore, the telescopic adjustment assembly includes a telescopic rod fixedly installed between two open rectangular blocks, a telescopic sleeve sleeved on the outside of the telescopic rod, a locking knob extending through one side of the telescopic sleeve, the locking knob extending through the telescopic sleeve and abutting against the telescopic rod, and the bottom of the telescopic sleeve being fixedly connected to the lifting plate.

[0010] Furthermore, a handle assembly is installed at the back of the base plate, and casters equipped with self-locking mechanisms are fixed around the bottom of the base plate.

[0011] The beneficial effects of this utility model are as follows: The building wall plastering device proposed in this utility model can be driven to complete the angle adaptation adjustment of 15-30° by setting an angle adjustment device, which increases the flexibility and practicality of plastering. In addition, the plastering device can be quickly disassembled and assembled through a quick-release mechanism, which makes it easy to replace different types of plastering tools according to different construction needs, significantly enhancing the versatility of the equipment and improving maintenance efficiency.

[0012] The wall plastering device proposed in this utility model improves the adaptability and practicality of the plastering device to different building walls by coordinating the telescopic adjustment component and the angle adjustment device.

[0013] The wall plastering device proposed in this utility model has casters equipped with self-locking mechanisms at the bottom of the base plate, which allows the device to move flexibly to the working position and be firmly fixed during operation through the self-locking function. This effectively suppresses equipment vibration and avoids uneven plastering layer caused by displacement or vibration, thus balancing convenient movement and stable operation.

[0014] The building wall plastering device proposed in this utility model forms a dual insurance mechanism of mechanical self-locking and manual locking through the screw and helical transmission method used in the lifting device, providing higher safety guarantee for high-altitude operations. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a building wall plastering device.

[0017] Figure 2 This is a structural diagram of a lifting device for a building wall plastering apparatus.

[0018] Figure 3 This is an enlarged structural diagram of point A of a building wall plastering device;

[0019] Figure 4 This is a structural diagram of an angle adjustment device for a building wall plastering apparatus.

[0020] In the diagram, 1. Base plate; 2. Bracket; 3. Groove; 4. Lifting device; 41. Brake motor; 42. Lead screw; 43. Slider; 5. Lifting plate; 6. Plastering device; 7. Angle adjustment device; 71. Adjusting plate; 72. Swing rod; 73. Ball joint; 74. Side plate; 75. Threaded locking handle; 8. Receiving plate; 9. Quick release mechanism; 91. Open rectangular block; 92. Compression spring; 93. Insert rod; 10. Telescopic adjustment assembly; 11. Telescopic rod; 12. Telescopic sleeve; 13. Locking knob; 14. Handle assembly; 15. Caster wheel; 16. Protrusion. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1-4As shown, an embodiment of this utility model provides a building wall plastering device, including a base plate 1 and a plastering device 6. Hollow supports 2 are installed on both opposite sides of the top of the base plate 1. The supports 2 are perpendicular to the base plate 1. A groove 3 is provided on the inner side of the supports 2 along the vertical direction. A lifting device 4 is installed inside the supports 2. A lifting plate 5 is installed between the two supports 2 through the lifting device 4. An angle adjustment device 7 is installed at the bottom of the plastering device 6. A receiving plate 8 is installed at the bottom of the angle adjustment device 7. Quick release mechanisms 9 are provided on both sides of the bottom of the receiving plate 8. A telescopic adjustment component 10 is connected to the bottom of the quick release mechanism 9.

[0023] In some embodiments, such as Figure 2 As shown, the lifting device 4 includes a brake motor 41 installed at the bottom of the bracket 2. A lead screw 42 is mounted on the top of the brake motor 41, and a slider 43 is helically driven on the outer surface of the lead screw 42. The slider 43 is fixedly connected to the lifting plate 5 through a groove 3. When the brake motor 41 is started, it drives the lead screw 42 to rotate. The lead screw 42 drives the slider 43 to move vertically on its surface through helical transmission with the slider 43. The surface of the lead screw 42 is machined with a continuous helical groove, and a matching nut is embedded inside the slider 43. When the lead screw 42 rotates around its axis, the rotational motion is converted into linear motion of the slider 43 along the axis of the lead screw through the inclined surface of the threaded contact surface. The slider 43 drives the lifting plate 5 to move synchronously. The height is fixed by the brake locking feature of the brake motor 41. Therefore, by locking the lead screw 42, the brake motor 41 indirectly locks the position of the slider 43 and the lifting plate 5, preventing them from moving up and down, thus achieving reliable height fixation.

[0024] In some embodiments, such as Figure 3 As shown, a protrusion 16 is installed on the bottom of the receiving plate 8. The quick-release mechanism 9 includes an open rectangular block 91 installed on both sides of the bottom of the receiving plate 8 with the opening facing the protrusion 16. A compression spring 92 is installed inside the open rectangular block 91. One end of the compression spring 92 is connected to a plug rod 93 that slides at the opening. The plug rod 93 is inserted into the inside of the protrusion 16 to lock the protrusion 16 (i.e., the receiving plate 8) on the quick-release mechanism 9.

[0025] The telescopic adjustment assembly 10 includes a telescopic rod 11 fixedly installed between two open rectangular blocks 91. The telescopic rod 11 is fixedly installed between the open rectangular blocks 91. The telescopic rod 11 is horizontally arranged, and its axis is perpendicular to the symmetrical center plane of the two open rectangular blocks 91. A telescopic sleeve 12 is sleeved on the outside of the telescopic rod 11. A locking knob 13 is provided through one side of the telescopic sleeve 12. The locking knob 13 passes through the telescopic sleeve 12 and abuts against the telescopic rod 11. The bottom of the telescopic sleeve 12 is fixedly connected to the lifting plate 5. The telescopic rod 11 moves vertically inside the telescopic sleeve 12, driving the plastering device 6 to rise and fall synchronously, thereby completing the telescopic adjustment. The locking knob 13 is used to fix the telescopic rod 11 inside the telescopic sleeve 12.

[0026] The locking knob 13 drives the threaded rod to radially press against the surface of the telescopic rod 11 by rotating clockwise, thereby locking the relative position of the telescopic rod and the telescopic sleeve 12 by using the generated static friction force to achieve height fixation.

[0027] A handle assembly 14 is installed on the back of the base plate 1. Universal wheels 15 equipped with self-locking mechanisms are provided around the bottom of the base plate 1. The handle assembly 14 drives the base plate 1 to move conveniently to a suitable location by the rolling of the universal wheels 15, and the locking and limiting are completed by the self-locking mechanism.

[0028] In some embodiments, such as Figure 4 As shown, the angle adjustment device 7 includes an adjustment plate 71 installed at the bottom of the plastering device 6. The adjustment plate 71 is fixedly connected to the plastering device 6 by external bolts. A swing rod 72 is installed at the bottom of the adjustment plate 71. A ball joint 73 is sleeved at the center of the swing rod 72. Side plates 74 are installed on both sides of the ball joint 73. The bottom of the side plates 74 is fixedly connected to the receiving plate 8. One side of one side plate 74 extends through to the ball joint 73 and is connected to a threaded locking handle 75. The adjustment plate 71 is fixed to the bottom of the plastering device 6 by external bolts. The ball joint 73 drives the swing rod 72 to move, and the swing rod 72 drives the adjustment plate 71 to move. The adjustment plate 71 drives the plastering device 6 to adapt to the angle adjustment of the building wall on site.

[0029] The working process of this example is as follows: First, the operator holds the handle assembly 14 installed on the back of the base plate 1 and uses the casters 15 with self-locking mechanisms equipped around the bottom of the base plate 1 to push the entire device to the vicinity of the building wall to be plastered; after reaching the designated position, the operator operates the self-locking mechanism of the casters 15 to lock the casters 15, preventing the device from moving during operation and ensuring the stability of the plastering operation.

[0030] When the angle of the plastering device needs to be adjusted, the threaded locking handle 75 on one side plate 74 of the angle adjustment device 7 is rotated to make the ball joint 73 movable. Based on the actual angle of the building wall (adjustable within the range of 15°-30°), the plastering device 6 is pushed by external force, causing the adjusting plate 71 and the swing rod 72 to move. Since the center of the swing rod 72 is fitted onto the ball joint 73, the swing rod 72 can rotate flexibly around the ball joint 73, thereby adjusting the angle of the plastering device 6 to match the angle of the wall. After the angle adjustment is completed, the threaded locking handle 75 is rotated in the opposite direction to lock and fix the ball joint 73, preventing the angle from changing during the plastering process.

[0031] When the height of the plastering device needs to be adjusted, loosen the locking knob 13 on one side of the telescopic sleeve 12, allowing the telescopic rod 11 to extend and retract freely within the telescopic sleeve 12. According to the height requirements of the wall, by stretching or compressing the telescopic rod 11, the telescopic rod 11 moves vertically within the telescopic sleeve 12, thereby driving the open rectangular block 91, the receiving plate 8, the angle adjustment device 7, and the plastering device 6 connected to the telescopic rod 11 to rise and fall synchronously, thus achieving height adjustment of the plastering device 6. After the plastering device 6 is adjusted to a suitable height, tighten the locking knob 13, so that the locking knob 13 passes through the telescopic sleeve 12 and tightly abuts against the telescopic rod 11, fixing the telescopic rod 11 within the telescopic sleeve 12 to prevent it from extending and retracting during operation.

[0032] When plastering is required on the wall, the brake motor 41 installed at the bottom of the bracket 2 is activated. The brake motor 41 drives the lead screw 42 connected to its top to rotate. Since the outer surface of the lead screw 42 is screwed to the slider 43, and the slider 43 is fixedly connected to the lifting plate 5 through the groove 3 on the inner side of the bracket 2, when the lead screw 42 rotates, the slider 43 will move vertically along the lead screw 42, thereby driving the lifting plate 5 to move up and down synchronously. The up and down movement of the lifting plate 5 will drive the telescopic sleeve 12, telescopic rod 11, receiving plate 8, angle adjustment device 7 and plastering device 6 connected to it to move up and down together. During the movement, the plastering device 6 performs plastering work on the wall. If plastering work needs to be performed at a certain height, the brake locking feature of the brake motor 41 can be used to stop the brake motor 41 and lock the lead screw 42, thereby fixing the position of the slider 43 and the lifting plate 5, so as to achieve stable operation of the plastering device 6 at that height.

[0033] When the plastering device 6 needs to be repaired or replaced, hold the insertion rod 93 in the quick-release mechanism 9, overcome the elastic force of the compression spring 92, and pull the insertion rod 93 out from the inside of the protrusion 16 at the bottom of the receiving plate 8. At this time, the limiting connection between the receiving plate 8 and the open rectangular block 91 is released, and the plastering device 6, together with the angle adjustment device 7 and the receiving plate 8, can be removed from the device. During installation, align the protrusion 16 at the bottom of the receiving plate 8 with the position of the open rectangular block 91, release the insertion rod 93, and under the elastic support of the compression spring 92, the insertion rod 93 automatically inserts into the inside of the protrusion 16, completing the limiting connection between the receiving plate 8 and the open rectangular block 91, and realizing the quick installation of the plastering device 6.

[0034] The various embodiments in this specification are described in a related manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. A building wall plastering device, comprising a base plate (1) and a plastering device (6), characterized in that, Hollow brackets (2) are installed on opposite sides of the top of the base plate (1). The brackets (2) are perpendicular to the base plate (1). The inner side of the brackets (2) has a groove (3) in the vertical direction. A lifting device (4) is installed inside the brackets (2). A lifting plate (5) is installed between the two brackets (2) through the lifting device (4). An angle adjustment device (7) is installed at the bottom of the plastering device (6). A support plate (8) is installed at the bottom of the angle adjustment device (7). A quick-release mechanism (9) is provided on both sides of the bottom of the support plate (8). A telescopic adjustment component (10) is connected to the bottom of the quick-release mechanism (9).

2. The wall plastering device according to claim 1, characterized in that, The lifting device (4) includes a brake motor (41) installed at the bottom of the bracket (2). A lead screw (42) is installed on the top of the brake motor (41). A slider (43) is spirally driven on the outer surface of the lead screw (42). The slider (43) is fixedly connected to the lifting plate (5) through the groove (3).

3. The building wall plastering device according to claim 1, characterized in that, The angle adjustment device (7) includes an adjustment plate (71) installed at the bottom of the plastering device (6). The adjustment plate (71) is fixedly connected to the plastering device (6) by external bolts. A swing rod (72) is installed at the bottom of the adjustment plate (71). A ball joint (73) is sleeved at the center of the swing rod (72). Side plates (74) are installed on both sides of the ball joint (73). The bottom of the side plate (74) is fixedly connected to the receiving plate (8). A threaded locking handle (75) is connected to one side of the side plate (74) through to the ball joint (73).

4. A building wall plastering device according to claim 1, characterized in that, The bottom of the receiving plate (8) is equipped with a protrusion (16). The quick-release mechanism (9) includes an open rectangular block (91) installed on both sides of the bottom of the receiving plate (8) with the opening facing the protrusion (16). A compression spring (92) is installed inside the open rectangular block (91). One end of the compression spring (92) is connected to a plug rod (93) that slides at the opening. The plug rod (93) is inserted into the inside of the protrusion (16).

5. A building wall plastering device according to claim 4, characterized in that, The telescopic adjustment assembly (10) includes a telescopic rod (11) fixedly installed between two open rectangular blocks (91). A telescopic sleeve (12) is sleeved on the outside of the telescopic rod (11). A locking knob (13) is provided through one side of the telescopic sleeve (12). The locking knob (13) passes through the telescopic sleeve (12) and abuts against the telescopic rod (11). The bottom of the telescopic sleeve (12) is fixedly connected to the lifting plate (5).

6. A building wall plastering device according to claim 1, characterized in that, The bottom plate (1) is equipped with a handle assembly (14) at the back end, and the bottom of the bottom plate (1) is fixed with casters (15) equipped with a self-locking mechanism.