A ground leveling device for basement construction

By designing leveling components and a walking mechanism, and by adjusting the included angle using the plate and moving parts, automatic material replenishment and leveling are achieved, solving the problems of movement difficulties and depressions caused by material accumulation, and improving the quality of floor tile paving.

CN121228842BActive Publication Date: 2026-02-24CHINA RAILWAY CONSTR ENG GRP NO 5 CONSTR CO LTD +2
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202511784588.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-12-01
Publication Date
2026-02-24
Estimated Expiration
2045-12-01

AI Technical Summary

Technical Problem

Existing ground leveling devices often experience material accumulation when leveling sand and lime layers, making movement difficult. They also lack material replenishment capabilities, which affects the quality of paving brick installation.

Method used

A device including a leveling component and a walking mechanism was designed. The leveling component consists of a first plate and a second plate. The material can move along the plate to the storage area or be discharged. The storage amount can be adjusted by changing the included angle through the moving part. Combined with the elastic plate and vibration function, the automatic feeding and leveling of the material can be realized.

Benefits of technology

This effectively prevents material accumulation, reduces sunken areas in the sand and ash layer, and improves the quality of paving bricks.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121228842B_ABST
    Figure CN121228842B_ABST
Patent Text Reader

Abstract

The basement construction ground leveling device relates to the technical field of building construction equipment, and comprises a leveling assembly and two walking mechanisms. The leveling assembly comprises a first plate body and a second plate body arranged at an included angle. A storage area is formed between the first plate body and one of the walking mechanisms. During the leveling process of the sand mortar layer by the walking mechanism, the material on the front side of the leveling assembly moves along the second plate body and is discharged, so that the material is not accumulated too much to cause the movement difficulty of the whole device. Meanwhile, the material on the front side of the leveling assembly also moves along the first plate body to the storage area for storage. When the amount of the stored material is sufficient, the excess material is moved to the second plate body for replenishment and the leveling process, so that the recessed area of the sand mortar layer is reduced, and the paving quality of the floor tiles is not affected.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of building construction equipment technology, and in particular to a ground leveling device for basement construction. Background Technology

[0002] During basement construction, floor tiles are typically laid. To ensure the quality of the tile installation, a sand-lime layer is usually used as a base layer for leveling the ground. In traditional construction methods, ground leveling is mainly done manually or with simple power tools. Construction workers use handheld leveling devices to repeatedly push and pull the sand-lime layer, using the physical contact between the leveling components at the bottom of the device and the sand-lime material to shape the surface.

[0003] Existing manual leveling devices typically consist of a long handle and a leveling plate, requiring manual pressure and control of the movement trajectory to complete the leveling operation. Electric devices, on the other hand, add a drive mechanism, using a motor to replace some of the manual pushing and pulling actions. During the leveling of sand and lime layers, excessive material accumulation on the front side of the leveling plate can make the entire device difficult to move; moreover, the lack of a material replenishment function can easily lead to sunken areas in the sand and lime layer, affecting the quality of the paving tiles.

[0004] The information disclosed in the background section of this invention is intended only to enhance the understanding of the general background of this invention, and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] Therefore, it is necessary to provide a ground leveling device for basement construction, addressing the problems existing in current ground leveling devices.

[0006] The above objectives are achieved through the following technical solutions:

[0007] A ground leveling device for basement construction includes a leveling component and two walking mechanisms. The leveling component is disposed between the two walking mechanisms. The leveling component includes a first plate and a second plate arranged at an angle. The ends of the first plate and the second plate are connected to each other. A material storage area is formed between the first plate and one of the walking mechanisms. When the walking mechanism moves, the material accumulated in front of the leveling component can move along the first plate to the material storage area, or move along the second plate to the end away from the first plate.

[0008] Furthermore, the first plate and the second plate form a preset angle, and the maximum amount of material that the storage area can store is positively correlated with the size of the preset angle.

[0009] Furthermore, the leveling assembly also includes an intermediate plate, which includes a plurality of movable units that are hinged sequentially. The movable units at both ends are respectively hinged to the ends of the first plate and the second plate that are close to each other. The end of the first plate that is away from the second plate is hinged to one of the walking mechanisms, and the end of the second plate that is away from the first plate is hinged to the other walking mechanism.

[0010] A movable member is provided between the two walking mechanisms. The movable member abuts against the rear side of the intermediate plate, so that the first plate and the second plate form the preset angle. The movable member can move back and forth along a preset path between the two walking mechanisms to change the size of the preset angle.

[0011] Furthermore, the preset path is an elliptical line segment, and the two foci of the elliptical line segment are located at the ends of the first plate and the second plate that are far apart from each other.

[0012] Furthermore, when the moving part moves to its limit position along the preset path, the moving part vibrates the active unit.

[0013] Furthermore, both the first plate and the second plate are provided with baffles at their tops.

[0014] Furthermore, an elastic plate is connected between the two baffles, and the elastic plate deforms when the moving member moves along the preset path.

[0015] Furthermore, one of the walking mechanisms is provided with a side plate, which together with the first plate forms the storage area.

[0016] Furthermore, the length of the first plate in the horizontal direction is less than the length of the second plate in the horizontal direction.

[0017] Furthermore, another walking mechanism extends from the end of the second plate away from the first plate.

[0018] The beneficial effects of this invention are as follows: During the process of leveling the sand and lime layer by the walking mechanism, the material on the front side of the leveling component will move along the second plate and be discharged, avoiding excessive material accumulation that would make the entire device difficult to move; at the same time, the material on the front side of the leveling component will also move along the first plate to the storage area for storage. When the amount of stored material is sufficient, the excess material will be moved to the second plate for replenishment and leveling, reducing the occurrence of sunken areas in the sand and lime layer and avoiding affecting the quality of the paving. Attached Figure Description

[0019] Figure 1 A first-view axonometric view of the basement construction ground leveling device provided in an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A magnified view of a section at point B in the middle;

[0021] Figure 3 Axonometric drawing from a second perspective of a floor leveling device used in basement construction;

[0022] Figure 4 A third-view axonometric drawing of a floor leveling device used in basement construction;

[0023] Figure 5 for Figure 1 A bottom view of the ground leveling device used in the construction of the basement;

[0024] Figure 6 A schematic diagram of the moving parts in a floor leveling device for basement construction.

[0025] Figure 7 for Figure 1 Front view of the ground leveling device used in the construction of the basement;

[0026] Figure 8 for Figure 7 A cross-sectional view of the ground leveling device used in the construction of the basement along the CC direction;

[0027] Figure 9 for Figure 8 A magnified view of a section at point D.

[0028] in:

[0029] 100. Walking mechanism; 101. Walking frame; 102. Walking wheels; 103. Connecting lugs; 104. Connecting rods;

[0030] 200. Leveling component; 201. First plate; 202. Second plate; 203. Intermediate plate; 204. Movable unit; 205. Moving part; 206. Slide groove; 207. Tooth; 208. Mounting plate; 209. Guide groove; 210. Guide wheel; 211. Motor; 212. Gear; 213. Box; 214. Limit switch; 215. Controller; 216. Baffle; 217. Elastic plate; 218. Side plate; 219. First rotating shaft; 220. Sleeve; 221. Second rotating shaft. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0032] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] like Figures 1 to 9 As shown, this embodiment of the invention provides a ground leveling device for basement construction, including a leveling component 200 and two walking mechanisms 100. The leveling component 200 is disposed between the two walking mechanisms 100. The leveling component 200 includes a first plate 201 and a second plate 202 arranged at an angle. The ends of the first plate 201 and the second plate 202 that are close to each other are connected. A material storage area is formed between the first plate 201 and one of the walking mechanisms 100. When the walking mechanism 100 moves, the material accumulated on the front side of the leveling component 200 can move along the first plate 201 to the material storage area, or move along the second plate 202 to the end away from the first plate 201.

[0035] During the process of the walking mechanism 100 moving and leveling the sand and lime layer, the material in front of the leveling component 200 will move along the second plate 202 and be discharged to avoid excessive material accumulation that would make it difficult for the entire device to move. At the same time, the material in front of the leveling component 200 will also move along the first plate 201 to the storage area for storage. When the amount of stored material is sufficient, the excess material will be moved to the second plate 202 for replenishment and leveling, reducing the occurrence of depressions in the sand and lime layer and avoiding affecting the quality of the paving.

[0036] The traveling mechanism 100 includes a traveling frame 101 and traveling wheels 102 disposed at the bottom of the traveling frame 101. At least two traveling wheels 102 are disposed at the front and rear. A counterweight can be disposed on the traveling frame 101. A connecting lug 103 is provided on the front side of the traveling frame 101 for connecting ropes, such as... Figure 1 As shown by the dashed line, pulling the rope enables the walking mechanism 100 to move forward. Alternatively, a drive mechanism can be installed to automatically rotate the walking wheels 102. A connecting rod 104 is bolted between the two walking frames 101. The leveling component 200 is located below the connecting rod 104, and both the first plate 201 and the second plate 202 are perpendicular to the ground. When the walking mechanism 100 moves, the front side of the leveling component 200 represents the area the device has not yet traversed, and the rear side represents the area the device has already traversed. During the leveling process, material, i.e., sand and ash, accumulates on the front side of the leveling component 200, while the rear side is leveled.

[0037] The connection between the first plate 201 and the second plate 202 forms a pointed protrusion, which faces the walking direction of the walking mechanism 100. The protrusion diverts the material to both sides, allowing the material to move along the first plate 201 or along the second plate 202. Compared with the prior art which uses an inclined plate, the first plate 201 and the second plate 202 are set at an angle, which is convenient for storing an appropriate amount of material and can guide the stored material to carry out the replenishment and leveling process.

[0038] Preferably, the first plate 201 and the second plate 202 form a preset angle, and the maximum amount of material that the storage area can store is positively correlated with the size of the preset angle.

[0039] The storage capacity of the storage area can be adjusted according to the size of the preset angle.

[0040] Among them, the preset included angle is as follows Figure 5 The included angle A is shown in the middle.

[0041] Initially, the preset included angle is the smallest, and the maximum amount of material that the storage area can store is the smallest, so that the storage area can store materials faster. At the same time, it ensures that excess materials in the storage area can always move to the second plate 202 for replenishment and leveling. At this time, the amount of excess material in the storage area that moves to the second plate 202 is the smallest, that is, the replenishment amount is the smallest, and the speed at which the material is discharged along the second plate 202 is the smallest.

[0042] As the preset angle increases, the amount of excess material in the storage area moving toward the second plate 202 gradually increases, that is, the amount of material replenished gradually increases to prevent insufficient material replenishment, and the speed at which the material is discharged along the second plate 202 increases.

[0043] Preferably, the leveling assembly 200 further includes an intermediate plate 203, which includes a plurality of movable units 204 that are hinged in sequence. The movable units 204 located at both ends are respectively hinged to the ends of the first plate 201 and the second plate 202 that are close to each other. The end of the first plate 201 that is away from the second plate 202 is hinged to one of the walking mechanisms 100, and the end of the second plate 202 that is away from the first plate 201 is hinged to another walking mechanism 100.

[0044] A movable member 205 is provided between the two walking mechanisms 100. The movable member 205 abuts against the rear side of the intermediate plate 203, so that the first plate 201 and the second plate 202 form a preset angle. The movable member 205 can move back and forth along a preset path between the two walking mechanisms 100 to change the size of the preset angle.

[0045] The moving part 205 moves back and forth between the two walking mechanisms 100 to abut and push the intermediate plate 203, causing the adjacent moving units 204 to rotate relative to each other, so that the intermediate plate 203 as a whole deforms, thereby driving the first plate 201 and the second plate 202 to rotate around their hinge axis with the corresponding walking mechanism 100, thereby changing the size of the preset included angle.

[0046] Initially, the moving part 205 is positioned closest to the first plate 201. At this time, the intermediate plate 203 and the second plate 202 are collinear, and the intermediate plate 203 can be considered as an extension of the second plate 202. The preset included angle is the smallest, and the maximum amount of material that the storage area can store is the smallest, so that the storage area can store materials faster. This ensures that excess material in the storage area can always move to the second plate 202 for replenishment and leveling. At this time, the amount of excess material in the storage area moving to the second plate 202 is the smallest, that is, the replenishment amount is the smallest, and the speed at which the material is discharged along the second plate 202 is the smallest.

[0047] As the moving part 205 moves closer to the second plate 202, the equivalent length of the first plate 201 gradually increases, the equivalent length of the second plate 202 gradually decreases, the preset included angle gradually increases, and the included angles of the first plate 201, the second plate 202 and the walking direction of the walking mechanism 100 change accordingly. The maximum amount of material that the storage area can store gradually increases, and the amount of excess material in the storage area moving towards the second plate 202 gradually increases, that is, the amount of material replenishment gradually increases to prevent insufficient material replenishment, and the speed at which the material is discharged along the second plate 202 increases.

[0048] The upper and lower ends of the intermediate plate 203 are flush with the upper and lower ends of the first plate 201 and the second plate 202. The movable unit 204 is a long strip plate arranged vertically. Adjacent movable units 204 are connected by hinges. The hinges are arranged away from the lower end of the movable unit 204 to avoid affecting the leveling quality.

[0049] Among them, see Figure 2 , Figure 6 and Figure 9 A groove 206 is formed along a preset path on the connecting rod 104, and the connecting rod 104 can also be formed along the preset path; the groove 206 extends vertically through the connecting rod 104, and one side of the groove 206 is provided with multiple teeth 207 at equal intervals along the preset path, or a rack is directly fixed thereon; a mounting plate 208 is slidably provided on the connecting rod 104, specifically, guide grooves 209 are formed on both sides of the outside of the connecting rod 104, and guide wheels 210 are rotatably provided on the mounting plate 208. The guide wheels 210 are set in the guide grooves 209 and roll along them to reduce the friction of the mounting plate 208 sliding along the connecting rod 104. Of course, the connecting rod 104 and the mounting plate 208 can also slide relative to each other directly through the cooperation of the moving groove and the moving rod; a motor 211 is provided on the mounting plate 208, and the output end of the motor 211 rotatably passes through the mounting plate 208 and is fixed with a gear 212. Engaging with gear 207, the moving part 205 is coaxially mounted on the lower surface of gear 212; a housing 213 is provided on the mounting plate 208, and a battery is installed inside the housing 213. The battery is connected to the motor 211 through wires and is provided with a corresponding controller 215 to control the start and stop of the motor 211; a limit switch 214 connected to the controller 215 is provided on the lower surface of the mounting plate 208. When the mounting plate 208 slides along the connecting rod 104, the limit switch 214 is in the slide groove 206. When the moving part 205 moves to the limit position along the slide groove 206, the limit switch 214 touches the end wall of the slide groove 206, so that the controller 215 controls the output end of the motor 211 to reverse, thereby causing the moving part 205 to move in the opposite direction along the slide groove 206. This cycle is repeated so that the moving part 205 can reciprocate along the preset path, i.e., the slide groove 206, between the two traveling mechanisms 100. The specific connection method of limit switch 214, controller 215 and motor 211 is existing technology and will not be described in detail here.

[0050] As a structural variation, it differs from the above structure in that the first plate 201, the second plate 202 and the intermediate plate 203 can also be a single integral plate. This integral plate includes multiple movable units 204 that are hinged in sequence. When the moving part 205 moves back and forth, all the movable units 204 can rotate relative to each other.

[0051] Preferably, the preset path is an elliptical line segment, with the two foci of the elliptical line segment located at the ends of the first plate 201 and the second plate 202 that are far apart from each other, so as to ensure that the moving part 205 always abuts against the rear side of the intermediate plate 203 and pushes the intermediate plate 203, so that the total length of the first plate 201, the intermediate plate 203 and the second plate 202 is constant, that is, equal to the major axis of the ellipse.

[0052] One focus of the elliptical line segment coincides with the hinge axis of the first plate 201 and the corresponding walking mechanism 100, and the other focus of the elliptical line segment coincides with the hinge axis of the second plate 202 and the corresponding walking mechanism 100.

[0053] Preferably, when the moving part 205 moves to the limit position along the preset path, the moving part 205 generates a vibration effect on the movable unit 204.

[0054] The moving unit 204 transmits the vibration to the first plate 201 and the material stored in the storage area, increasing the internal fluidity of the stored material. This allows the material stored to move to the second plate 202 for replenishment and leveling each time the moving part 205 changes direction, or to move and be discharged along the second plate 202, thus facilitating the movement of the entire device.

[0055] Preferably, both the first plate 201 and the second plate 202 are provided with baffles 216 at their tops to limit the height of material accumulated on the front side of the first plate 201 and the second plate 202, thereby causing the material to move along the second plate 202 and be discharged, or to move along the first plate 201 to the storage area for storage, or to move excess material in the storage area to the second plate 202 for replenishment and leveling. At the same time, the baffles 216 can also prevent the accumulated material from crossing the connecting rod 104 and falling into the area that has already been passed, thus affecting the leveling quality.

[0056] The baffle 216 is set perpendicular to the first plate 201 or the second plate 202, that is, parallel to the ground, or it can form a certain angle with the ground.

[0057] Preferably, an elastic plate 217 is connected between the two baffles 216, and the elastic plate 217 deforms when the moving member 205 moves along a preset path.

[0058] Meanwhile, the elastic plate 217 also has the same function as the baffle 216, namely, limiting the height of the material piled up in front of the intermediate plate 203.

[0059] The elastic plate 217 is fixed at both ends to two baffles 216. The elastic plate 217 can be made of elastic material such as SBS, TPU or synthetic rubber. Of course, the elastic plate 217 can also be a structure that can deform, such as a bending plate, so that the elastic plate 217 can also deform along a preset path and return to its original shape.

[0060] Preferably, one of the walking mechanisms 100 is provided with a side plate 218, and the side plate 218 and the first plate 201 form a material storage area.

[0061] The plane on which the side plate 218 is located is in the same direction as the walking mechanism 100. A first rotating shaft 219 is fixedly provided at the end of the first plate 201 away from the second plate 202. A sleeve 220 is provided on the side plate 218. The upper end of the sleeve 220 is fixed to the end of the connecting rod 104 near one of the walking mechanisms 100. The first rotating shaft 219 is rotatably inserted into the sleeve 220, so that the first plate 201 can rotate around its end away from the second plate 202. A second rotating shaft 221 is fixedly provided at the end of the second plate 202 away from the first plate 201. The second rotating shaft 221 is rotatably provided at the end of the connecting rod 104 near the other walking mechanism 100, so that the second plate 202 can rotate around its end away from the first plate 201. The size of the preset included angle can be changed by the moving part 205.

[0062] Preferably, the length of the first plate 201 in the horizontal direction is less than the length of the second plate 202 in the horizontal direction, so as to reduce the storage area, reduce the material piled up on the front side of the leveling component 200, and facilitate the movement of the entire device.

[0063] Preferably, the end of the second plate 202 away from the first plate 201 extends out of another walking mechanism 100.

[0064] This facilitates the discharge of materials moving along the second plate 202 outside the traveling mechanism 100, thus avoiding affecting the traveling process of the traveling mechanism 100.

[0065] In use, the walking mechanism 100 travels on the sand and lime layer via its wheels 102, and the leveling component 200 levels the sand and lime layer. Material accumulates on the front side of the leveling component 200, while the rear side of the leveling component 200 is leveled. Specifically, material on the front side of the leveling component 200 moves along the second plate 202 and is discharged, preventing excessive material accumulation that could hinder the movement of the entire device. Simultaneously, material on the front side of the leveling component 200 also moves along the first plate 201 to the storage area for storage. When the stored material is sufficient, excess material moves to the second plate 202 for replenishment and leveling, reducing sunken areas in the sand and lime layer and preventing any impact on the quality of the paving.

[0066] In addition, the motor 211 is started by the controller 215. The output end of the motor 211 drives the gear 212 to rotate. Since the gear 212 meshes with the teeth 207, the motor 211, the mounting plate 208 and the moving part 205 slide together along the preset path, i.e. the slide groove 206. The output end of the motor 211 is controlled to rotate forward and backward by the limit switch 214, so that the moving part 205 moves back and forth along the slide groove 206 to abut and push the intermediate plate 203, so that the adjacent moving units 204 rotate relative to each other and the intermediate plate 203 as a whole deforms. This causes the first plate 201 to rotate around the first rotating shaft 219 and the second plate 202 to rotate around the second rotating shaft 221, thereby changing the size of the preset included angle and changing the storage capacity of the storage area.

[0067] Specifically, initially, the preset angle is at its smallest, minimizing the maximum amount of material that the storage area can hold. This allows the storage area to store material more quickly while ensuring that excess material can always move to the second plate 202 for replenishment and leveling. At this point, the amount of excess material moving from the storage area to the second plate 202 is minimal, meaning the replenishment amount is minimal, and the material discharge speed along the second plate 202 is also minimal. As the preset angle increases, the amount of excess material moving from the storage area to the second plate 202 gradually increases, meaning the replenishment amount gradually increases, preventing insufficient replenishment, and the material discharge speed along the second plate 202 also increases.

[0068] When the moving part 205 moves to its limit position along the slide 206, the moving part 205 vibrates the movable unit 204. The movable unit 204 transmits the vibration to the first plate 201 and the material stored in the storage area, increasing the internal fluidity of the stored material. This allows the stored material to move to the second plate 202 for replenishment and leveling each time the moving part 205 changes direction, or to move and be discharged along the second plate 202, thus facilitating the movement of the entire device.

[0069] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A ground leveling device for basement construction, characterized in that, The device includes a leveling component and two traveling mechanisms. The leveling component is disposed between the two traveling mechanisms. The leveling component includes a first plate and a second plate arranged at an angle. The ends of the first plate and the second plate that are close to each other are connected. A storage area is formed between the first plate and one of the traveling mechanisms. When the traveling mechanism travels, the material accumulated in front of the leveling component can move along the first plate to the storage area, or move along the second plate to the end away from the first plate. The first plate and the second plate form a preset angle, and the maximum amount of material that the storage area can store is positively correlated with the size of the preset angle; The leveling assembly also includes an intermediate plate, which includes a plurality of movable units that are hinged in sequence. The movable units at both ends are respectively hinged to the ends of the first plate and the second plate that are close to each other. The end of the first plate that is away from the second plate is hinged to one of the walking mechanisms, and the end of the second plate that is away from the first plate is hinged to the other walking mechanism. A movable member is provided between the two walking mechanisms. The movable member abuts against the rear side of the intermediate plate, so that the first plate and the second plate form the preset angle. The movable member can move back and forth along a preset path between the two walking mechanisms to change the size of the preset angle.

2. The basement construction ground leveling device according to claim 1, characterized in that, The preset path is an elliptical line segment, and the two foci of the elliptical line segment are located at the ends of the first plate and the second plate that are far apart from each other.

3. The basement construction ground leveling device according to claim 1, characterized in that, When the moving part moves to its limit position along the preset path, the moving part vibrates the active unit.

4. The basement construction ground leveling device according to claim 1, characterized in that, Both the first plate and the second plate are provided with baffles at their top.

5. The basement construction ground leveling device according to claim 4, characterized in that, An elastic plate is connected between the two baffles. When the moving member moves along the preset path, the elastic plate deforms.

6. The basement construction ground leveling device according to claim 1, characterized in that, One of the walking mechanisms is provided with a side plate, which together with the first plate forms the storage area.

7. The basement construction ground leveling device according to claim 1, characterized in that, The length of the first plate in the horizontal direction is less than the length of the second plate in the horizontal direction.

8. The basement construction ground leveling device according to claim 1, characterized in that, The second plate extends from the end away from the first plate, where another walking mechanism extends.

Citation Information

Patent Citations

  • Rake for work execution of elastic paving material

    JP2004211351A