Construction device for plaster mortar plastering

By combining the lifting and plastering components, efficient and comfortable operation of gypsum mortar plastering is achieved, solving the problems of high labor intensity and easy damage to scrapers in traditional construction, and improving construction efficiency and plastering quality.

CN223937571UActive Publication Date: 2026-02-24ANHUI RANYI CONSTRUCTION CO LTD
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Patent Information

Application Number
CN202520510920.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-22
Publication Date
2026-02-24
Estimated Expiration
2035-03-22

AI Technical Summary

Technical Problem

Traditional gypsum mortar plastering is labor-intensive, requiring workers to frequently bend over to scoop mortar, resulting in low efficiency and easy damage to scrapers. It cannot simultaneously meet the requirements of convenient operation, efficient mortar delivery, and guaranteed plastering quality.

Method used

The construction device combines a lifting component and a plastering component. The mortar bucket is raised and lowered by a servo motor driving gears and screws. Combined with a buffer spring to protect the scraper, it reduces the physical exertion of construction workers and improves the plastering quality.

Benefits of technology

It reduces the physical exertion of construction workers, improves construction efficiency, ensures plastering quality, extends the service life of the scraper, and is suitable for long-term plastering operations on high walls.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a construction device for plaster mortar plastering, and belongs to the technical field of plaster mortar plastering, the construction device for plaster mortar plastering comprises a lifting assembly, and the key points of the technical scheme are that through mutual cooperation of all parts of the lifting assembly, a constructor can sit on a cushion on a lifting platform, and the lifting assembly can lift the lifting platform; a servo motor drives a driving gear to rotate and drives a driven gear meshed with the driving gear and a lead screw to rotate, a threaded sleeve in the middle of the lifting platform is matched with the lead screw, and the lifting platform further slides up and down along a sliding rod, so that stable lifting of the lifting platform can be achieved, and the lifting platform can also slide up and down along the sliding rod. The mortar bucket connected below can be driven to ascend and descend together, so that the action that constructors frequently stoop to scoop mortar is greatly reduced, excessive consumption of physical power is avoided, construction efficiency is improved, and the plastering machine is particularly suitable for long-time plastering operation of high wall surfaces.
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Description

Technical Field

[0001] This utility model relates to the field of gypsum mortar plastering technology, and more specifically, to a construction device for gypsum mortar plastering. Background Technology

[0002] In the construction industry, plastering with gypsum mortar is a common and important process. Traditional plastering with gypsum mortar mostly relies on manual operation with simple tools. Construction workers need to hold scrapers and other tools for long periods of time, frequently bending over to scoop mortar from buckets on the ground, resulting in extremely high labor intensity. Existing simple plastering auxiliary devices have limited functions, such as only simple height adjustment, and cannot simultaneously meet the needs of construction workers for convenient operation, efficient mortar delivery, and guaranteed plastering quality. Therefore, there is an urgent need for a new, multi-functional, integrated construction device for plastering with gypsum mortar to improve the current situation.

[0003] Chinese patent application number CN219466539U discloses a device for pouring thermal insulation plaster mortar. This device uses a mixing shaft and a turning plate to tumble and mix the plaster and retarder in the pouring box, ensuring the retarder is fully dissolved, enhancing its adaptability to the plaster, and improving the retarding effect of the plaster, thus guaranteeing the quality of the wall pouring. Furthermore, a scraper assembly is installed, with multiple scrapers repeatedly scraping away plaster material from the inner wall of the pouring box, preventing plaster from adhering to the inside of the box and avoiding waste. This also facilitates cleaning and reduces construction costs. However, construction workers need to frequently move between the ground and the working height, and each bend... The process of scooping mortar from a bucket on the ground and then returning to a higher position to perform plastering is physically and time-consuming, significantly slowing down the construction progress. For example, when plastering a large area of ​​walls, a task that might have taken several hours can be extended to several days due to frequent loading and unloading of materials, increasing labor costs and construction time. Inevitably, there are some minor bumps, particles, or uneven areas on the wall surface during construction. When the scraper comes into rigid contact with these areas, the hard impact can cause the scraper edges to wear down, deform, or even break, shortening the scraper's lifespan and increasing tool replacement costs. For example, in some old building renovation projects, the wall surface itself is in poor condition, and a scraper without cushioning may be scrapped after just a few construction sessions.

[0004] Therefore, a construction device for plastering gypsum mortar is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, the purpose of this utility model is to provide a construction device for plaster mortar plastering. Through the cooperation of various parts of the lifting assembly, the construction worker can sit on the seat cushion of the lifting platform with their feet placed on the footpad, making operation comfortable and reducing fatigue. A servo motor drives the drive gear to rotate, which in turn drives the meshing driven gear and lead screw to rotate. Because the screw sleeve in the middle of the lifting platform engages with the lead screw, and the lifting platform also slides up and down along the sliding rod, stable lifting of the platform is achieved, while simultaneously lifting the mortar bucket connected below. This greatly reduces the need for construction workers to frequently bend over to scoop mortar, avoids excessive physical exertion, and improves construction efficiency, making it particularly suitable for long-term plastering work on high walls.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A construction device for plastering gypsum mortar includes a lifting assembly, a connecting assembly in the middle of the lifting assembly, and a plastering assembly in the middle of the connecting assembly.

[0008] The lifting assembly includes a mounting base plate, with multiple casters mounted on the lower end of the mounting base plate, a sliding rod fixedly connected to the upper end of the mounting base plate, a drive housing fixedly connected to the middle of the mounting base plate, a servo motor fixedly connected inside the drive housing, and a drive gear fixedly connected to the output end of the servo motor.

[0009] Furthermore, a lead screw is rotatably connected inside the drive housing, and a driven gear is fixedly connected to the lower end of the lead screw inside the drive housing. The driven gear meshes with the driving gear.

[0010] Furthermore, the connecting assembly includes a lifting platform slidably connected to the middle of the sliding rod, a threaded sleeve installed in the middle of the lifting platform, the threaded sleeve being installed in the middle of the lead screw, a mortar bucket fixedly connected to the lower end of the lifting platform, a pair of mutually symmetrical limiting blocks fixedly connected inside the mortar bucket, a sliding baffle slidably connected between the pair of limiting blocks and the mortar bucket, and a discharge pipe fixedly connected to the middle of the mortar bucket, the interior of the discharge pipe communicating with the interior of the mortar bucket.

[0011] Furthermore, a rectangular hole is provided in the middle of the lifting platform, a pair of symmetrical foot pads are fixedly connected inside the lifting platform, and a seat cushion is fixedly connected to the upper end of the lifting platform.

[0012] Furthermore, the plastering assembly includes a U-shaped fixing block fixedly connected to the front end of the lifting platform. A fixing rod is fixedly connected inside the U-shaped fixing block. A pair of mutually symmetrical sliding blocks are slidably connected to the middle of the fixing rod. A pair of mutually symmetrical buffer springs are sleeved in the middle of the fixing rod. The pair of buffer springs and the pair of sliding blocks are arranged in a one-to-one correspondence.

[0013] Furthermore, each of the pair of sliding blocks is hinged to a hinge rod at its middle, and one end of each pair of hinge rods is hinged to a hinge block, with a scraper fixedly connected to one end of each hinge block.

[0014] In summary, this utility model has the following beneficial effects:

[0015] (1) This solution allows construction workers to sit on the cushion of the lifting platform and place their feet on the foot pad through the cooperation between the various parts of the lifting assembly. The operation is comfortable and not tiring. The servo motor drives the active gear to rotate, which in turn drives the driven gear and the lead screw to rotate. Since the screw sleeve in the middle of the lifting platform cooperates with the lead screw, and the lifting platform also slides up and down along the sliding rod, the lifting platform can be raised and lowered stably, and the mortar bucket connected below can be raised and lowered together. This greatly reduces the construction workers' frequent bending over to scoop mortar, avoids excessive physical exertion, and improves construction efficiency. It is especially suitable for long-term plastering operations on high walls.

[0016] (2) This solution utilizes the cooperation between various parts of the plastering assembly. A buffer spring is fitted on the fixed rod, and the sliding block slides on the fixed rod. When the scraper contacts the wall surface for plastering, if the wall surface is uneven or encounters protrusions or depressions, the impact force on the scraper will be transmitted to the hinge rod, which will cause the sliding block to move on the fixed rod to compress the buffer spring. The buffer spring can effectively absorb the impact force and prevent the scraper from being damaged due to rigid collision. At the same time, it allows the scraper to better fit the wall surface, ensuring the flatness of the plastering, improving the plastering quality, and reducing problems such as hollowness and cracks caused by excessive pressure of the scraper on the wall surface. By combining manual and automatic plastering, the practicality is increased. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure in this embodiment;

[0018] Figure 2 This is a schematic diagram of the overall disassembled structure in this embodiment;

[0019] Figure 3 This is a schematic diagram of the split structure of the connection component in this embodiment;

[0020] Figure 4 This is a schematic cross-sectional view of the drive housing in this embodiment;

[0021] Figure 5 This is a schematic diagram of the plastering component in this embodiment.

[0022] The diagram is labeled as follows: 1. Lifting assembly; 2. Connecting assembly; 3. Plastering assembly; 101. Mounting base plate; 102. Casters; 103. Sliding rod; 104. Drive housing; 105. Servo motor; 106. Drive gear; 107. Lead screw; 108. Driven gear; 201. Lifting platform; 202. Mortar bucket; 203. Limit block; 204. Sliding baffle; 205. Discharge pipe; 206. Foot pad; 207. Seat cushion; 301. U-shaped fixing block; 302. Fixing rod; 303. Sliding block; 304. Buffer spring; 305. Hinge rod; 306. Hinge block; 307. Scraper. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0025] Reference Figures 1-5 As shown, a construction device for plastering gypsum mortar is provided in a preferred embodiment of the present invention, including a lifting component 1, a connecting component 2 in the middle of the lifting component 1, and a plastering component 3 in the middle of the connecting component 2.

[0026] The lifting assembly 1 includes a mounting base plate 101, with multiple casters 102 mounted on the lower end of the mounting base plate 101, a sliding rod 103 fixedly connected to the upper end of the mounting base plate 101, a drive housing 104 fixedly connected to the middle of the mounting base plate 101, a servo motor 105 fixedly connected inside the drive housing 104, and a drive gear 106 fixedly connected to the output end of the servo motor 105.

[0027] Reference Figures 1-5 As shown, a lead screw 107 is rotatably connected inside the drive housing 104, and a driven gear 108 is fixedly connected to the lower end of the lead screw 107 and located inside the drive housing 104. The driven gear 108 meshes with the driving gear 106.

[0028] This design utilizes the mounting base plate 101 as the fundamental support structure for the entire device, providing installation positions for other components. Casters 102 are installed at the lower end of the mounting base plate 101, enabling the device to move flexibly and easily switch between different construction locations, thus improving the device's flexibility and convenience.

[0029] Reference Figures 1-5 As shown, the connecting assembly 2 includes a lifting platform 201 slidably connected to the middle of the sliding rod 103. A screw sleeve is installed in the middle of the lifting platform 201. The screw sleeve is installed in the middle of the lead screw 107. A mortar bucket 202 is fixedly connected to the lower end of the lifting platform 201. A pair of mutually symmetrical limiting blocks 203 are fixedly connected inside the mortar bucket 202. A sliding baffle 204 is slidably connected between the pair of limiting blocks 203 and the mortar bucket 202. A discharge pipe 205 is fixedly connected to the middle of the mortar bucket 202. The interior of the discharge pipe 205 communicates with the interior of the mortar bucket 202.

[0030] Reference Figures 1-5 As shown, a rectangular hole is provided in the middle of the lifting platform 201, a pair of symmetrical foot pads 206 are fixedly connected inside the lifting platform 201, and a seat cushion 207 is fixedly connected to the upper end of the lifting platform 201.

[0031] Reference Figure 5 As shown, the plastering component 3 includes a U-shaped fixing block 301 fixedly connected to the front end of the lifting platform 201. A fixing rod 302 is fixedly connected inside the U-shaped fixing block 301. A pair of mutually symmetrical sliding blocks 303 are slidably connected to the middle of the fixing rod 302. A pair of mutually symmetrical buffer springs 304 are sleeved in the middle of the fixing rod 302. The pair of buffer springs 304 and the pair of sliding blocks 303 are arranged in a one-to-one correspondence.

[0032] Reference Figure 5 As shown, a pair of sliding blocks 303 are each hinged to a hinge rod 305 in the middle, and a hinge block 306 is hinged to one end of the pair of hinge rods 305. A scraper 307 is fixedly connected to one end of the hinge block 306.

[0033] This design uses a U-shaped fixing block 301 fixed to the front end of the lifting platform 201, providing an installation base for the fixing rod 302. The sliding block 303 slides on the fixing rod 302, and the buffer spring 304 is fitted onto the fixing rod 302 and corresponds to the sliding block 303. When the scraper 307 contacts an uneven area on the wall, the resulting impact force is transmitted to the sliding block 303 through the hinge rod 305 and hinge block 306, compressing the buffer spring 304. The buffer spring 304 absorbs the impact force, preventing damage to the scraper 307 due to rigid collisions, while also allowing the scraper 307 to better conform to the wall surface, improving the smoothness and quality of the plastering.

[0034] Specific implementation process: The construction worker first sits on the seat cushion 207 at the top of the lifting platform 201, with both feet placed on the foot pads 206, ready to start work. When the working height needs to be adjusted, the servo motor 105 installed inside the drive housing 104 is activated. The output end of the servo motor 105 drives the drive gear 106 to rotate. Since the drive gear 106 and the driven gear 108 mesh with each other, the rotation of the drive gear 106 will drive the driven gear 108 to rotate synchronously. The driven gear 108 is fixedly connected to the lower end of the lead screw 107 and is located inside the drive housing 104, so the lead screw 107 also rotates accordingly. A threaded sleeve is installed in the middle of the lifting platform 201, which cooperates with the middle of the lead screw 107. At the same time, the lifting platform 201 also slides along the sliding... The rod 103 slides up and down. During the rotation of the screw 107, the threaded sleeve carries the lifting platform 201 up or down along the screw 107. Since the lower end of the lifting platform 201 is fixedly connected to the mortar bucket 202, the mortar bucket 202 rises and falls along with the lifting platform 201. In this way, construction workers do not need to frequently bend over to retrieve mortar from the ground; they can work comfortably in a seated position as the lifting platform reaches the appropriate working height, greatly improving construction efficiency. This is especially suitable for long-term plastering work on high walls. The mortar bucket 202, as a container for storing gypsum mortar, has a pair of symmetrical limiting blocks 203 fixedly connected inside. A sliding baffle 204 is slidably connected between the limiting blocks 203. When it is necessary to discharge material for plastering, a certain... The operation methods, such as pulling ropes or pushing with electric push rods, can be customized according to the actual design. The original text does not detail the specific driving method to make the sliding baffle 204 slide within the track defined by the limiting block 203. The middle part of the mortar bucket 202 is fixedly connected to the discharge pipe 205, and the inside of the discharge pipe 205 is connected to the inside of the mortar bucket 202. When the sliding baffle 204 is opened, the gypsum mortar in the mortar bucket 202 flows out through the discharge pipe 205 under the action of gravity, realizing automatic feeding to the plastering area, ensuring the continuity of construction, and reducing the tedious operation of manual scooping. The U-shaped fixing block 301 fixed to the front end of the lifting platform 201 is fixedly connected to the fixing rod 302. A pair of mutually symmetrical buffer springs 304 are sleeved on the fixing rod 302, and the sliding baffle 204 is fixedly connected to the track defined by the limiting block 203. Block 303 slides on fixed rod 302. Buffer spring 304 is set one-to-one with sliding block 303. A hinge rod 305 is hinged to the middle of each pair of sliding blocks 303. A hinge block 306 is hinged to one end of the hinge rod 305. A scraper 307 is fixedly connected to one end of the hinge block 306. When the scraper 307 contacts the wall surface for plastering, if the wall surface is uneven, with small bumps, particles, or depressions, the impact force on the scraper 307 will be transmitted to the sliding block 303 through the hinge rod 305, causing the sliding block 303 to move on fixed rod 302, thereby compressing the corresponding buffer spring 304. The buffer spring 304 can effectively absorb the impact force, on the one hand preventing the scraper 307 from being damaged by rigid collision and extending the scraper's service life.On the other hand, it allows the 307 scraper to better conform to the contours of the wall, ensuring a smooth plastering surface and reducing quality problems such as hollow spots and cracks caused by excessive pressure from the scraper on the wall, thus improving the plastering effect.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A construction device for plastering gypsum mortar, comprising a lifting assembly (1), characterized in that: The lifting assembly (1) is provided with a connecting assembly (2) in the middle, and the connecting assembly (2) is provided with a plastering assembly (3) in the middle; The lifting assembly (1) includes a mounting base plate (101), a plurality of casters (102) are mounted on the lower end of the mounting base plate (101), a sliding rod (103) is fixedly connected to the upper end of the mounting base plate (101), a drive housing (104) is fixedly connected to the middle part of the mounting base plate (101), a servo motor (105) is fixedly connected inside the drive housing (104), and a drive gear (106) is fixedly connected to the output end of the servo motor (105).

2. The construction device for plastering gypsum mortar according to claim 1, characterized in that: A lead screw (107) is rotatably connected inside the drive housing (104). A driven gear (108) is fixedly connected to the lower end of the lead screw (107) inside the drive housing (104). The driven gear (108) meshes with the driving gear (106).

3. The construction device for plastering gypsum mortar according to claim 1, characterized in that: The connecting assembly (2) includes a lifting platform (201) slidably connected to the middle of the sliding rod (103). A threaded sleeve is installed in the middle of the lifting platform (201). The threaded sleeve is installed in the middle of the lead screw (107). A mortar bucket (202) is fixedly connected to the lower end of the lifting platform (201). A pair of mutually symmetrical limiting blocks (203) are fixedly connected inside the mortar bucket (202). A sliding baffle (204) is slidably connected between the pair of limiting blocks (203) and the mortar bucket (202). A discharge pipe (205) is fixedly connected to the middle of the mortar bucket (202). The interior of the discharge pipe (205) is connected to the interior of the mortar bucket (202).

4. The construction device for plastering gypsum mortar according to claim 3, characterized in that: The lifting platform (201) has a rectangular hole in the middle, and a pair of symmetrical foot pads (206) are fixedly connected inside the lifting platform (201). A seat cushion (207) is fixedly connected to the upper end of the lifting platform (201).

5. The construction device for plastering gypsum mortar according to claim 1, characterized in that: The plastering component (3) includes a U-shaped fixing block (301) fixedly connected to the front end of the lifting platform (201). A fixing rod (302) is fixedly connected inside the U-shaped fixing block (301). A pair of mutually symmetrical sliding blocks (303) are slidably connected to the middle of the fixing rod (302). A pair of mutually symmetrical buffer springs (304) are sleeved in the middle of the fixing rod (302). The pair of buffer springs (304) and the pair of sliding blocks (303) are arranged in a one-to-one correspondence.

6. The construction device for plastering gypsum mortar according to claim 5, characterized in that: A hinge rod (305) is hinged to the middle of each pair of sliding blocks (303), and a hinge block (306) is hinged to one end of each pair of hinge rods (305). A scraper (307) is fixedly connected to one end of the hinge block (306).

Citation Information

Patent Citations

  • Thermal insulation plastering gypsum mortar pouring device

    CN219466539U