A building construction surface polishing device
By designing two sets of grinding components in the building construction surface grinding device, with the grinding parts facing opposite directions and driven synchronously by a drive motor, the problem of lateral offset of the equipment is solved, and the force balance and labor intensity are reduced during the construction process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 四川省建筑机械化工程有限公司
- Filing Date
- 2024-05-21
- Publication Date
- 2026-07-07
AI Technical Summary
Existing surface grinding equipment for building construction tends to shift laterally during grinding, resulting in equipment imbalance and increasing the labor intensity of construction workers.
Design a grinding device for building construction surfaces, which adopts two sets of grinding components with opposite moving directions and synchronous driving by a drive motor to ensure that the grinding equipment is subjected to balanced lateral forces during operation.
By ensuring that the grinding equipment experiences balanced lateral forces during operation, the labor intensity of construction workers is reduced, and the additional stabilizing force required for the equipment is decreased.
Smart Images
Figure CN118417973B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of grinding equipment technology, and specifically to a grinding device for building construction surfaces. Background Technology
[0002] Surface sanding in construction refers to the grinding and polishing of building surfaces to achieve a smooth, glossy, and aesthetically pleasing finish. This work is typically performed in the final stages of construction to ensure that the quality and appearance of walls, floors, or other surfaces meet the expected standards. Surface sanding can involve various materials, including concrete, stone, and wood, and the specific methods and tools used will vary depending on the material. Common sanding tools include sandpaper, sanding pads, and polishing machines. Construction workers will select appropriate tools and methods based on their needs to achieve the desired effect.
[0003] Most existing construction surface grinding equipment uses a single grinding disc for grinding. This not only causes dust pollution due to the high-speed rotation of the disc, but also results in an unbalanced force distribution and a tendency for the grinding equipment to shift due to the disc's unidirectional rotation relative to the surface. Therefore, manual grinding of construction surfaces has long been a physically demanding and physically exhausting task in construction projects. Summary of the Invention
[0004] To address the technical problem of lateral displacement tendency in existing construction surface grinding equipment during grinding, this invention provides a construction surface grinding device with two sets of grinding components. The grinding parts of the two grinding components move in opposite directions, so that the grinding equipment is subjected to balanced lateral forces during operation without requiring a large additional force to keep the grinding equipment in the working area, thereby reducing the labor intensity of grinding construction surfaces.
[0005] This invention is achieved through the following technical solution:
[0006] This invention provides a surface grinding device for building construction, comprising: a grinding machine body, one end of which is provided with a first support rail and a second support rail, the first and second support rails having the same structure and being symmetrically arranged about the center of the grinding machine body; a first grinding assembly, mounted on the first support rail, the first grinding assembly having a plurality of first grinding elements, the plurality of first grinding elements being capable of sequentially cyclically moving around the first support rail along a first grinding direction; a second grinding assembly, the second grinding assembly having the same structure as the first grinding assembly, mounted on the second support rail, the second grinding assembly having a plurality of second grinding elements, the plurality of second grinding elements being capable of sequentially cyclically moving around the second support rail along a second grinding direction, the second grinding direction being opposite to the first grinding direction; and a drive motor, the drive motor being disposed within the grinding machine body and simultaneously connected to both the first and second grinding assemblies for driving the first and second grinding elements to move synchronously.
[0007] The present invention provides a surface grinding device for building construction, comprising a grinding machine body, a first grinding component, a second grinding component, and a drive motor. One end of the grinding machine body is provided with a first support rail and a second support rail that are structurally identical and centrally symmetrically arranged. The first grinding component is mounted on the first support rail and is provided with a plurality of first grinding elements. The plurality of first grinding elements can move sequentially around the first support rail along a first grinding direction. The second grinding component has the same structure as the first grinding component and is mounted on the second support rail. Similarly, the second grinding component is provided with a plurality of second grinding elements. The plurality of second grinding elements can move sequentially around the second support rail along a second grinding direction, and the second grinding direction is opposite to the first grinding direction. The drive motor is disposed within the grinding machine body and is simultaneously connected to the first grinding component and the second grinding component for transmission.
[0008] In use, the drive motor is activated to simultaneously move the first and second grinding components, bringing them into contact with the construction surface (usually a wall, floor, or ceiling) for grinding. Because the first and second support rails have identical structures and are centrally symmetrically arranged, and the first and second grinding components grind in opposite directions while being synchronously driven by a single drive motor, the forces acting on each first and corresponding second grinding component are synchronized and opposite in direction during grinding. This reduces the lateral force acting on the grinding machine body through the first and second grinding components. Especially when the surface features of the grinding surface are highly uniform, the lateral force on the grinding machine body can approach zero, ensuring balanced lateral forces during operation. This eliminates the need for significant additional force to keep the grinding equipment within the working area, thereby reducing the labor intensity of grinding construction surfaces.
[0009] In an optional embodiment, the first support guide rail is a hollow square tube structure, and an outlet groove is provided on the side of the first support guide rail away from the grinding machine body. The outlet groove extends along the length direction of the first support guide rail. The first grinding assembly includes a plurality of connecting slide rods. One end of the connecting slide rod passes through the outlet groove and is inserted into the first support guide rail. The connecting slide rod can move along the length direction of the outlet groove. The first grinding component is fixed to the other end of the corresponding connecting slide rod to ensure that the first grinding component can move sequentially around the first support guide rail along the first grinding direction.
[0010] In an optional embodiment, a sliding guide bearing is sleeved in the middle of the connecting slide rod, and the outer diameter of the sliding guide bearing is adapted to the inner cavity cross section of the first support guide rail, so as to reduce the resistance to the movement of the connecting slide rod and ensure the stability of the sliding of the connecting slide rod.
[0011] In an optional embodiment, the first grinding assembly further includes a drive chain, the connecting slide rod is mounted on the drive chain, and the drive chain is drively connected to the output shaft of the drive motor so that the drive motor drives the first grinding element to move through the drive chain.
[0012] In an optional embodiment, the output shaft of the drive motor is provided with a drive sprocket, which is located between the transmission chain of the first grinding component and the transmission chain of the second grinding component, so as to ensure that the drive motor can drive the first grinding component and the second grinding component to move synchronously.
[0013] In an optional embodiment, a dust collection hood is also included. The dust collection hood is fixed on the grinding machine body and covers the first grinding component and the second grinding component to cover the grinding area and prevent the grinding dust from flying out, thereby improving the working environment of the grinding operation.
[0014] In an optional embodiment, the dust collection hood includes a dust cover body, one end of which is fixedly connected to the grinding machine body, and the other end is provided with a wall-adhering component. In the working state, the wall-adhering component can adhere to the building construction surface to prevent the grinding dust from flying out from the gap between the dust collection hood and the building construction surface.
[0015] In an optional embodiment, the wall-adhering assembly includes a connecting ring. At the end of the connecting ring furthest from the dust cover, multiple adhering wind deflectors are provided. These multiple adhering wind deflectors are arranged sequentially along the circumference of the connecting ring. The structure formed by the multiple adhering wind deflectors can seal the gap between the connecting ring and the work surface. One side of each adhering wind deflector is hinged to the connecting ring. The dust cover also includes multiple air ducts arranged along the circumference of the dust cover. One end of each air duct is fixed to the grinding machine body, and the fixed end is used to connect to a compressed air source. The other end of each air duct is provided with a nozzle, which is fixed to the connecting ring. In the working state, the adhering wind deflectors are kept inclined towards the axis of the grinding machine body, and the air outlet direction of the nozzle is directly facing the adhering wind deflectors, so that the adhering wind deflectors adhere to the work surface under the action of the airflow from the nozzle.
[0016] The airflow from the nozzles ensures the air baffle adheres tightly to the work surface, while the angled airflow guides the airflow axially towards the grinder body, directing grinding dust inwards and preventing it from escaping through gaps between the dust collection hood and the work surface. Furthermore, the axial airflow from the nozzles cleans the work surface, promptly removing grinding dust. The angled airflow also allows the air baffle to rotate inwards under external force, bringing it closer to the grinder body. This ensures the dust hood can pass over any protrusions on the work surface during grinder movement.
[0017] In an optional embodiment, the outer wall of the connecting ring is provided with a plurality of limiting protrusions, each of the limiting protrusions corresponding to the fitting windproof sheet, so as to limit the deflection angle of the fitting windproof sheet by the limiting protrusions, thereby preventing the fitting windproof sheet from tilting outward.
[0018] In an optional embodiment, the grinding machine body is further provided with a dust cover, which covers the first support guide rail and the second support guide rail. The dust cover is provided with a through groove for the first grinding component and the second grinding component to move, so as to prevent the grinding dust from entering the interior of the grinding machine body, thereby reducing the maintenance frequency of the grinding device.
[0019] Compared with the prior art, the present invention has the following advantages and beneficial effects:
[0020] The present invention provides a surface grinding device for building construction, comprising a grinding machine body, a first grinding component, a second grinding component, and a drive motor. One end of the grinding machine body is provided with a first support rail and a second support rail, which are structurally identical and centrally symmetrically arranged. The first grinding component is mounted on the first support rail and has multiple first grinding elements, which can sequentially circulate around the first support rail along a first grinding direction. The second grinding component has the same structure as the first grinding component and is mounted on the second support rail. Similarly, the second grinding component has multiple second grinding elements, which can sequentially circulate around the second support rail along a second grinding direction. Furthermore, the second grinding direction is opposite to the first grinding direction. The drive motor is located inside the grinding machine body and is simultaneously connected to the first grinding component and the second grinding component. Therefore, during the grinding process, the force directions of each first grinding component and the corresponding second grinding component are opposite, which reduces the lateral force acting on the grinding machine body through the first grinding component and the second grinding component. Especially when the surface features of the grinding surface are highly uniform, the lateral force on the grinding machine body can approach zero, so that the grinding device is subjected to balanced lateral force during operation, without needing to provide a large additional force to keep the grinding equipment in the working area, thereby reducing the labor intensity of grinding building construction surfaces. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0022] In the attached diagram:
[0023] Figure 1 This is a schematic cross-sectional view of the building surface grinding device according to an embodiment of the present invention;
[0024] Figure 2 for Figure 1 A magnified structural diagram of part A;
[0025] Figure 3 for Figure 1 A schematic diagram of the enlarged structure of part B;
[0026] Figure 4 for Figure 1 A magnified structural diagram of part C.
[0027] The attached diagram shows the markings and corresponding component names:
[0028] 100-Grinding machine body, 110-First support guide rail, 111-Outlet groove, 120-Second support guide rail, 130-Dust cover, 140-Compressed air chamber, 200-First grinding assembly, 210-First grinding piece, 220-Connecting slide bar, 221-Sliding guide bearing, 230-Transmission chain, 300-Second grinding assembly, 310-Second grinding piece, 400-Drive motor, 410-Drive sprocket, 500-Dust collection hood, 510-Dust baffle body, 511-Dust suction pipe connector, 520-Wall-adhering assembly, 521-Connecting ring, 521a-Limiting protrusion, 522-Adhering wind deflector, 530-Air duct, 531-Air nozzle. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. It should be noted that similar reference numerals and letters in the following drawings indicate similar items. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0030] In the description of the embodiments of this application, the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships that the device is conventionally placed in use, or the orientations or positional relationships that are conventionally understood by those skilled in the art. These are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "set up," "install," "connect," and "link" should be interpreted broadly. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0031] Example
[0032] Combination Figure 1 and Figure 2This embodiment provides a surface grinding device for building construction, including: a grinding machine body 100, one end of which is provided with a first support guide rail 110 and a second support guide rail 120, the first support guide rail 110 and the second support guide rail 120 having the same structure and being symmetrically arranged about the center of the grinding machine body 100; a first grinding assembly 200, which is mounted on the first support guide rail 110 and has a plurality of first grinding elements 210, which can sequentially and cyclically move around the first support guide rail 110 along a first grinding direction; and a second grinding assembly 300, wherein... The second polishing assembly 300 has the same structure as the first polishing assembly 200. The second polishing assembly 300 is mounted on the second support guide rail 120. The second polishing assembly 300 is provided with a plurality of second polishing elements 310. The plurality of second polishing elements 310 can move sequentially and cyclically around the second support guide rail 120 along a second polishing direction, which is opposite to the first polishing direction. A drive motor 400 is provided inside the polishing machine body 100. The drive motor 400 is simultaneously connected to both the first polishing assembly 200 and the second polishing assembly 300 to drive the first polishing elements 210 and the second polishing elements 310 to move synchronously.
[0033] Combination Figure 3 Specifically, the first support guide rail 110 is a hollow square tube structure, and a guide groove 111 is provided on the side of the first support guide rail 110 away from the grinding machine body 100. The guide groove 111 extends along the length direction of the first support guide rail 110. The first grinding assembly 200 includes a plurality of connecting slide rods 220. One end of the connecting slide rod 220 passes through the guide groove 111 and is inserted into the first support guide rail 110. The connecting slide rod 220 can move along the length direction of the guide groove 111. The first grinding component 210 is fixed to the other end of the corresponding connecting slide rod 220 to ensure that the first grinding component 210 can move sequentially around the first support guide rail 110 along the first grinding direction.
[0034] Typically, a sliding guide bearing 221 is fitted into the middle of the connecting slide rod 220. The outer diameter of the sliding guide bearing 221 is adapted to the inner cavity cross-section of the first support guide rail 110 to reduce the resistance to movement of the connecting slide rod 220 and ensure the stability of the sliding of the connecting slide rod 220. At the same time, the first support guide rail 110 is set in a semi-circular shape, and V-shaped openings are provided at both ends of the first support guide rail 110 to guide the sliding guide bearing 221.
[0035] It is understood that the first polishing assembly 200 also includes a transmission chain 230, the connecting slide bar 220 is mounted on the transmission chain 230, and the transmission chain 230 is connected to the output shaft of the drive motor 400 so that the drive motor 400 drives the first polishing piece 210 to move through the transmission chain 230.
[0036] In this embodiment, a portion of the transmission chain 230 is located inside the cavity of the first support guide rail 110, and a portion is tensioned between the two ends of the first support guide rail 110. The portion tensioned between the two ends of the first support guide rail 110 is connected to the output shaft of the drive motor 400 so that the drive motor 400 drives the transmission chain 230 to circulate within the first support guide rail 110, thereby driving multiple first grinding parts 210 to circulate sequentially along the first support guide rail 110.
[0037] The second support guide rail 120 and the first support guide rail 110 have the same structure, and the second grinding component 300 has the same structure as the first grinding component 200. Therefore, this embodiment will not provide a detailed description of the second support guide rail 120 and the second grinding component 300. The grinding parts of the first grinding component 210 and the second grinding component 310 are determined according to specific grinding requirements and can be sandpaper, sanding discs, polishing discs, wire discs, etc.
[0038] It should be understood that, in this embodiment, the output shaft of the drive motor 400 is provided with a drive sprocket 410, which is located between the transmission chain 230 of the first grinding component 200 and the transmission chain of the second grinding component 300, so as to ensure that the drive motor 400 can drive the first grinding component 210 and the second grinding component 310 to move synchronously.
[0039] In other words, the drive chain 230 of the first polishing assembly 200 is in a tensioned state and engaged on one side of the drive sprocket 410, and the drive chain of the second polishing assembly 300 is in a tensioned state and engaged on the other side of the drive sprocket 410, so that when the drive sprocket 410 rotates, the drive chain 230 of the first polishing assembly 200 and the drive chain of the second polishing assembly 300 are driven to move in opposite directions, such as the drive chain 230 of the first polishing assembly 200 moving clockwise and the drive chain 230 of the second polishing assembly 300 moving counterclockwise.
[0040] Continue to combine Figure 2 The grinding machine body 100 is also provided with a dust cover 130, which covers the first support guide rail 110 and the second support guide rail 120. The dust cover 130 is provided with a through groove for the first grinding component 210 and the second grinding component 310 to move, so as to prevent the grinding dust from entering the interior of the grinding machine body 100, thereby reducing the maintenance frequency of the grinding device.
[0041] Based on this, this embodiment also includes a dust collection hood 500, which is fixed on the grinding machine body 100 and covers the first grinding component 200 and the second grinding component 300. The dust collection hood 500 covers the grinding area to prevent the grinding dust from flying out, thereby improving the working environment of the grinding operation.
[0042] Combination Figure 1 and Figure 3 Specifically, the dust collection hood 500 includes a dust cover body 510, one end of which is fixedly connected to the grinding machine body 100, and the other end is provided with a wall-adhering component 520. In the working state, the wall-adhering component 520 can adhere to the building construction surface to prevent grinding dust from flying out from the gap between the dust collection hood 500 and the building construction surface. The dust cover body 510 is connected to a suction pipe connector 511, which is connected to a negative pressure source to promptly remove the grinding dust through negative pressure suction.
[0043] Combination Figure 1 and Figure 4 The wall-mounted assembly 520 includes a connecting ring 521. At the end of the connecting ring 521 away from the dust cover 510, multiple wind-blocking baffles 522 are provided. These multiple wind-blocking baffles 522 are arranged sequentially around the connecting ring 521. The structure formed by the multiple wind-blocking baffles 522 can seal the gap between the connecting ring 521 and the construction surface. One side of each wind-blocking baffle 522 is hinged to the connecting ring 521. The dust cover 510 also includes multiple air ducts 530, which are arranged around the dust cover 510. One end of the air guide pipe 530 is fixed to the grinding machine body 100. The end of the air guide pipe 530 fixed to the grinding machine body 100 is used to connect to a compressed air source. The other end of each air guide pipe 530 is provided with a jet nozzle 531, which is fixed to the connecting ring 521. In the working state, the bonding wind baffle 522 can be kept tilted towards the axis of the grinding machine body 100, and the air outlet direction of the jet nozzle 531 is directly facing the bonding wind baffle 522, so that the bonding wind baffle 522 is bonded to the construction surface under the action of the airflow ejected by the jet nozzle 531.
[0044] To ensure that the air baffle 522 can cover the gap between the connecting ring 521 and the work surface, two adjacent air baffles 522 are partially overlapped. This also facilitates the connection of multiple air pipes 530 to a compressed air source. A compressed air chamber 140 is provided at the end of the grinding machine body 100, and each air pipe 530 is connected to the compressed air chamber 140. The compressed air chamber 140 is also equipped with a connecting pipe joint for connecting to a compressed air source.
[0045] Therefore, the airflow ejected from the nozzle 531 causes the bonding baffle 522 to adhere tightly to the construction surface, ensuring a close fit. Simultaneously, the airflow from the nozzle 531, guided by the inclined bonding baffle 522, flows axially towards the grinding machine body 100, blowing the grinding dust into the interior of the dust cover, thus preventing the dust from escaping through the gap between the dust collection hood 500 and the construction surface. Furthermore, the axial flow of the airflow from the nozzle 531 towards the grinding machine body 100 also cleans the construction surface, promptly removing the grinding dust. The airflow ejected by the nozzle 531 causes the windproof plate 522 to be tilted and attached to the construction surface, so that the windproof plate 522 can rotate inward and approach the grinding machine body 100 under the action of external force, ensuring that the dust cover 510 can pass over the protrusions on the building grinding surface during the movement of the grinding machine body 100.
[0046] It is understood that the outer wall of the connecting ring 521 is provided with a plurality of limiting protrusions 521a, each of the limiting protrusions 521a being provided in a one-to-one correspondence with the fitting wind deflector 522, so as to limit the deflection angle of the fitting wind deflector 522 by the limiting protrusions 521a, thereby preventing the fitting wind deflector 522 from tilting outward.
[0047] In summary, the building surface grinding device provided in this embodiment includes a grinding machine body 100, a first grinding component 200, a second grinding component 300, and a drive motor 400. One end of the grinding machine body 100 is provided with a first support guide rail 110 and a second support guide rail 120 that are structurally identical and centrally symmetrically arranged. The first grinding component 200 is mounted on the first support guide rail 110 and is provided with a plurality of first grinding elements 210. The plurality of first grinding elements 210 can rotate around the first support guide rail 110 along a first grinding direction. The second grinding component 300 has the same structure as the first grinding component 200 and is installed on the second support guide rail 120. Similarly, the second grinding component 300 is provided with a plurality of second grinding parts 310. The plurality of second grinding parts 310 can move sequentially around the second support guide rail 120 along the second grinding direction, and the second grinding direction is opposite to the first grinding direction. The drive motor 400 is located inside the grinding machine body 100 and is simultaneously connected to the first grinding component 200 and the second grinding component 300 for transmission.
[0048] In use, connect the air duct 530 to the compressed air source and the dust suction pipe to the negative pressure source, start the drive motor 400, so that the drive motor 400 can simultaneously drive the first grinding part 210 and the second grinding part 310 to move, and put the first grinding part 210 and the second grinding part 310 against the building construction surface (usually the wall, floor, or ceiling) for grinding. Since the first support rail 110 and the second support rail 120 have the same structure and are centrally symmetrically arranged, and the first grinding component 210 and the second grinding component 310 have opposite grinding directions and are synchronously driven by a drive motor 400, during the grinding process, the forces on each first grinding component 210 and the corresponding second grinding component 310 are synchronous and opposite in direction. This reduces the lateral force acting on the grinding machine body 100 through the first grinding component 210 and the second grinding component 310. Especially when the surface features of the grinding surface are highly uniform, the lateral force on the grinding machine body 100 can approach zero, so that the lateral force on the grinding device is balanced during operation, without the need to provide a large additional force to keep the grinding equipment in the working area, thereby reducing the labor intensity of grinding the building construction surface.
[0049] Meanwhile, during the grinding process, the airflow ejected from the nozzle 531 flows axially towards the grinding machine body 100 under the guidance of the inclined, fitted wind deflector 522, so as to blow the grinding dust into the interior of the dust cover, ensuring that the grinding dust will not fly out from the gap between the dust collection cover 500 and the construction surface, and to sweep the construction surface. The suction pipe provides negative pressure suction in real time, which can promptly remove the grinding dust, thereby achieving dust-free grinding and a good grinding construction environment.
[0050] In summary, the building surface grinding device provided in this embodiment experiences balanced lateral force during operation, without requiring significant additional force to keep the grinding equipment within the working area, thereby reducing the labor intensity of grinding building surfaces. This embodiment is not only suitable for grinding building surfaces but can also be used for grinding the surfaces of other structures.
[0051] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A grinding device for building construction surfaces, characterized in that, include: A grinding machine body (100) is provided with a first support guide rail (110) and a second support guide rail (120) at one end of the grinding machine body (100). The first support guide rail (110) and the second support guide rail (120) have the same structure and are symmetrically arranged about the center of the grinding machine body (100). A first polishing assembly (200) is mounted on a first support guide rail (110). The first polishing assembly (200) is provided with a plurality of first polishing elements (210). The plurality of first polishing elements (210) can move sequentially around the first support guide rail (110) along a first polishing direction. The second polishing assembly (300) has the same structure as the first polishing assembly (200). The second polishing assembly (300) is mounted on the second support guide rail (120). The second polishing assembly (300) is provided with a plurality of second polishing elements (310). The plurality of second polishing elements (310) can move sequentially around the second support guide rail (120) along the second polishing direction. The second polishing direction is opposite to the first polishing direction. A drive motor (400) is disposed inside the grinding machine body (100), and the drive motor (400) is simultaneously connected to the first grinding component (200) and the second grinding component (300) to drive the first grinding component (210) and the second grinding component (310) to move synchronously through the drive motor (400); The first support guide rail (110) is a hollow square tube structure, and an outlet groove (111) is provided on the side of the first support guide rail (110) away from the grinding machine body (100), and the outlet groove (111) extends along the length direction of the first support guide rail (110). The first grinding assembly (200) includes a plurality of connecting slide rods (220). One end of the connecting slide rod (220) passes through the guide groove (111) and is inserted into the first support guide rail (110). The connecting slide rod (220) can move along the length direction of the guide groove (111). The first grinding component (210) is fixed at the other end of the corresponding connecting slide rod (220). A sliding guide bearing (221) is sleeved in the middle of the connecting slide rod (220). The outer diameter of the sliding guide bearing (221) is adapted to the inner cavity cross section of the first support guide rail (110).
2. The building surface grinding device according to claim 1, characterized in that, The first grinding assembly (200) also includes a transmission chain (230), the connecting slide (220) is mounted on the transmission chain (230), and the transmission chain (230) is connected to the output shaft of the drive motor (400).
3. The building surface grinding device according to claim 2, characterized in that, The output shaft of the drive motor (400) is provided with a drive sprocket (410), which is located between the transmission chain (230) of the first grinding assembly (200) and the transmission chain of the second grinding assembly (300).
4. The building surface grinding device according to claim 1, characterized in that, It also includes a dust collection hood (500), which is fixed on the grinding machine body (100) and covers the first grinding assembly (200) and the second grinding assembly (300).
5. The building surface grinding device according to claim 4, characterized in that, The dust collection hood (500) includes a dust cover body (510), one end of which is fixedly connected to the grinding machine body (100), and the other end is provided with a wall-adhesive component (520). In the working state, the wall-adhesive component (520) can adhere to the building construction surface.
6. The building surface grinding device according to claim 5, characterized in that, The wall-mounted assembly (520) includes a connecting ring (521). At one end of the connecting ring (521) away from the dust cover (510), there are multiple fitted wind deflectors (522). The multiple fitted wind deflectors (522) are arranged sequentially along the circumference of the connecting ring (521). The structure formed by the multiple fitted wind deflectors (522) can cover the gap between the connecting ring (521) and the construction surface. One side of the fitted wind deflector (522) is hinged to the connecting ring (521). The dust cover (510) also includes an air guide pipe (530), and there are multiple air guide pipes (530) arranged around the dust cover (510). One end of each air guide pipe (530) is fixed to the grinding machine body (100). The end of the air guide pipe (530) fixed to the grinding machine body (100) is used to connect to a compressed air source. The other end of each air guide pipe (530) is provided with a jet nozzle (531), and the jet nozzle (531) is fixed to the connecting ring (521). In the working state, the bonding wind deflector (522) can be kept tilted towards the axis of the grinding machine body (100), and the air outlet direction of the air jet nozzle (531) is facing the bonding wind deflector (522), so that the bonding wind deflector (522) is bonded to the construction surface under the action of the air jet from the air jet nozzle (531).
7. The building surface grinding device according to claim 6, characterized in that, The outer wall of the connecting ring (521) is provided with a plurality of limiting protrusions (521a), each of the limiting protrusions (521a) and the fitting windproof sheet (522) are provided in a one-to-one correspondence, so as to limit the deflection angle of the fitting windproof sheet (522) through the limiting protrusions (521a).
8. The building surface grinding device according to any one of claims 1 to 7, characterized in that, The grinding machine body (100) is also provided with a dust cover (130), which covers the first support guide rail (110) and the second support guide rail (120), and the dust cover (130) is provided with a through groove for the first grinding part (210) and the second grinding part (310) to move.