Device for cleaning concrete under reinforcing mesh and using method
By designing a steel under-mesh concrete cleaning device including a lifting mesh assembly and a push slurry slab, the problem of spilled concrete slurry being difficult to clean with spilled walls is solved, and rapid and effective cleaning is achieved, and the quality and flatness of the concrete floor slabs are improved.
Patent Information
- Application Number
- CN202411643287.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-02-07
AI Technical Summary
In concrete construction, it is difficult to clean the spilled walls with concrete slurry, resulting in the final condensation of ash on the floor formwork, affecting the structural quality and surface flatness of the floor.
Design a steel under-mesh concrete cleaning device, including a bottom bracket, a slurry plate and a lifting mesh assembly. The lifting mesh assembly can lift the steel mesh within a small range through the combination of the ramp plate and the second horizontal plate, increasing the distance between the steel mesh and the floor formwork; the pushing slurry plate can slide along the long through-hole or surround the limit block. Rotate and scrape off the concrete under the steel mesh.
By lifting the steel mesh and using the design of push-slurry slabs, the concrete slurry for walls on the floor formwork can be quickly and effectively cleaned, preventing it from finally forming ash slag, and improving the pouring quality and surface flatness of the concrete floor slabs.
Smart Images
Figure CN119392927A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of building construction, and in particular to a device for cleaning concrete under a steel mesh and a use method thereof. Background Art
[0002] During concrete building construction, the casting formwork of the shear wall and the floor slab is usually set up first, the steel mesh is tied, and the shear wall under the floor slab is cast first, and then the floor slab is cast. However, when casting the shear wall, due to the narrow casting opening of the wall formwork, the wall concrete slurry is easy to spill onto the floor slab formwork. If the spilled wall concrete slurry is not cleaned up in time, it will form ash slag on the floor slab formwork after final setting, resulting in the formation of joints when the floor slab is subsequently cast, and obvious cracks and concrete leakage are found, affecting the structural quality of the overall concrete floor slab; and, due to the different concrete strength models of the shear wall and the floor slab, after the floor slab is cast and the formwork is removed, the ash slag will cause the bottom surface of the floor slab to form a honeycomb surface. The later repair of the dry ash slag and the honeycomb surface caused by the joint at the bottom of the cast-in-place concrete slab will not only waste a lot of manpower and funds, but also the quality of the repaired parts will be uneven, which may cause more serious damage to the structural quality.
[0003] However, due to the small distance between the bottom layer of steel mesh and the floor formwork, the large particles in the spilled wall concrete cannot be shoveled out from under the steel mesh (shoveled to the inside of the wall formwork), and there are many solids in the wall concrete slurry. The steel mesh has a large area and is covered with multiple rows and columns of grids. Picking out the solids in each grid one by one is extremely inefficient and time-consuming, which seriously affects the construction efficiency. Summary of the invention
[0004] The object of the present invention is to provide a device for cleaning concrete under a steel mesh and a method for using the device to solve the problems in the above background.
[0005] The technical solution adopted by the present invention is: a device for cleaning concrete under a steel mesh, which includes a bottom support plate, a pusher plate and a mesh lifting assembly, wherein the bottom support plate and the mesh lifting assembly are fixedly connected, the pusher plate is movably arranged between the bottom support plate and the mesh lifting assembly, the mesh lifting assembly is used to lift the steel mesh, and the pusher plate is used to scrape off the concrete under the steel mesh.
[0006] Specifically, the net lifting assembly includes a first horizontal plate, a second horizontal plate and an inclined pressure plate. The first horizontal plate is provided with a horizontal rotating shaft. The second horizontal plate and the inclined pressure plate extend in opposite directions from the horizontal rotating shaft respectively. The second horizontal plate is rotatably connected to the horizontal rotating shaft. The inclined pressure plate is fixedly connected to the second horizontal plate and forms an acute angle with the first horizontal plate.
[0007] Specifically, two opposite groups of first mounting plates are arranged on the first transverse plate, the second transverse plate is located between the two groups of the first mounting plates, and the horizontal rotating shafts are fixedly arranged on the facing surfaces of the two groups of the first mounting plates respectively.
[0008] Specifically, two opposite groups of second mounting plates are provided on the second cross plate, the inclined pressure plate is located between the two groups of second mounting plates, the second mounting plate and the inclined pressure plate are respectively provided with corresponding special-shaped positioning pin holes, and special-shaped positioning pins are provided in the special-shaped positioning pin holes.
[0009] Specifically, the cross section of the special-shaped positioning pin hole is a regular polygon, and at least two groups of the special-shaped positioning pin holes with different directions are arranged on each side of the inclined pressure plate.
[0010] Specifically, a limit block is provided between the bottom support plate and the net lifting assembly, an elongated through hole is provided on the push plate, the limit block is passed through the elongated through hole, and the width of the elongated through hole is greater than the cross-sectional size of the limit block.
[0011] Specifically, the long ends of the pusher board are respectively provided with push-pull handles.
[0012] The technical solution of the present invention also includes: a method for using the above-mentioned concrete cleaning device under the steel mesh, which includes the steps of:
[0013] Extend the concrete cleaning device under the steel mesh into the gap between the steel mesh and the floor slab formwork, press down the inclined pressing plate, so that the end of the second horizontal plate away from the horizontal rotating shaft is tilted, and the steel mesh is lifted;
[0014] The slurry pushing plate is slid along the length direction of the long through hole, or the slurry pushing plate is rotated around the limit block to scrape the wall concrete slurry on the floor formwork to the inner side of the shear wall formwork.
[0015] The beneficial effects of the present invention are as follows: the steel mesh is first lifted in a small range by using a mesh lifting assembly to increase the distance between the floor formwork and the steel mesh, and then the slurry pushing plate is pushed and the wall concrete slurry is pushed and scraped into the wall formwork by using the slurry pushing plate, so that the cleaning work on the upper surface of the floor formwork can be completed quickly, and the spilled wall concrete slurry is prevented from finally setting on the floor formwork to form ash slag, thereby affecting the pouring quality and surface flatness of the floor. The device has a simple structure, is easy to operate, and has a high cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is an overall structural diagram of an embodiment of the present invention;
[0017] Figure 2 is a structural diagram of a net lifting assembly in an embodiment of the present invention;
[0018] Figure 3 The embodiment of the present invention is attached Figure 2 A magnified view of the structure at center A;
[0019] Figure 4 Schematic diagram of the connection between the pusher plate and the bottom support plate in an embodiment of the present invention;
[0020] In the figure:
[0021] 10. Bottom support plate;
[0022] 20. Pushing plate; 21. Long through hole; 22. Push-pull handle;
[0023] 30. Net lifting assembly; 31. First horizontal plate; 32. Second horizontal plate; 33. Oblique pressure plate; 34. Horizontal rotating shaft; 35. First mounting plate; 36. Second mounting plate; 37. Special-shaped positioning pin hole; 38. Special-shaped positioning pin;
[0024] 40. Limit block. DETAILED DESCRIPTION
[0025] The technical solutions of the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[0026] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set" and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0027] Reference Figure 1-4 The present embodiment provides a device for cleaning concrete under a steel mesh, which includes a bottom support plate 10, a slurry pushing plate 20 and a mesh lifting assembly 30. The bottom support plate 10 and the mesh lifting assembly 30 are fixedly connected, the slurry pushing plate 20 is movably arranged between the bottom support plate 10 and the mesh lifting assembly 30, the mesh lifting assembly 30 is used to lift the steel mesh, and the slurry pushing plate 20 is used to scrape concrete under the steel mesh.
[0028] There is a small distance between the floor formwork and the steel mesh at the bottom layer of the floor, which is not enough to allow large solid particles in the spilled wall concrete slurry to pass through. The lifting mesh assembly 30 is used to lift the steel mesh in a small range first, which does not affect the structure and position of the steel mesh, but can increase the distance between the floor formwork and the steel mesh. At this time, the slurry pushing plate 20 is pushed and the wall concrete slurry is pushed and scraped into the wall formwork by the slurry pushing plate 20, so as to quickly complete the cleaning work on the upper surface of the floor formwork, prevent the spilled wall concrete slurry from finally setting on the floor formwork to form ash slag, thereby affecting the pouring quality and surface flatness of the floor. The device has a simple structure, is easy to operate, and has high cleaning efficiency.
[0029] Reference Figure 2 The mesh lifting assembly 30 includes a first transverse plate 31, a second transverse plate 32 and an inclined pressure plate 33. A horizontal rotation axis 34 is provided on the first transverse plate 31. The second transverse plate 32 and the inclined pressure plate 33 extend from the horizontal rotation axis 34 in opposite directions. The second transverse plate 32 is rotatably connected to the horizontal rotation axis 34. The inclined pressure plate 33 is fixedly connected to the second transverse plate 32 and forms an acute angle with the first transverse plate 31. When the inclined pressure plate 33 is pressed down, the inclined pressure plate 33 applies force to the second transverse plate 32, and the second transverse plate 32 can rotate around the horizontal rotation axis 34, and its end away from the horizontal rotation axis 34 can be tilted to achieve the function of lifting the steel mesh.
[0030] Specifically, two opposite groups of first mounting plates 35 are disposed on the first transverse plate 31 , the second transverse plate 32 is located between the two groups of first mounting plates 35 , and the facing surfaces of the two groups of first mounting plates 35 are respectively fixedly provided with horizontal rotation shafts 34 .
[0031] The inclined pressure plate 33 can be welded and fixed to the second transverse plate 32, or it can be detachably connected to the second transverse plate 32. When the detachable connection method is adopted, when the device is stored after use, the inclined pressure plate 33 can be removed so that it is not in a tilted state, saving storage space and preventing accidental touch damage.
[0032] During implementation, two sets of second mounting plates 36 can be arranged opposite to each other on the second transverse plate 32, and the oblique pressure plate 33 is located between the two sets of second mounting plates 36. The second mounting plates 36 and the oblique pressure plate 33 are respectively provided with special-shaped positioning pin holes 37 corresponding to the positions, and the special-shaped positioning pin holes 37 are provided with special-shaped positioning pins 38. The special-shaped positioning pins 38 are used to facilitate the positioning of the angle of the oblique pressure plate 33, so that when it is needed to be used, it can be installed in a form that forms an acute angle with the first transverse plate 31.
[0033] The shape of the special-shaped positioning pin hole 37 can be configured according to specific use requirements. For example, in this embodiment, the cross-section of the special-shaped positioning pin hole 37 is a regular polygon, more specifically, a regular hexagon, and the outer contour of the special-shaped positioning pin 38 is a regular hexagonal prism. At least one special-shaped positioning pin hole 37 on the inclined pressure plate 33 is oriented in such a way that when the inclined pressure plate 33 is in use, that is, when it forms a specified angle with the first cross plate 31, the special-shaped positioning pin hole 37 completely overlaps with the special-shaped positioning pin hole 37 on the second mounting plate 36.
[0034] Since the shape of the inclined pressure plate 33 can be selected according to the requirements of use, a special-shaped positioning pin hole 37 can sometimes only meet the assembly state of the device when in use. When it needs to be stored, if the special-shaped positioning pin 38 is removed and stored separately, it is easy to lose. Although the inclined pressure plate 33 can be stacked on the second horizontal plate 32, it can move freely and is also easy to lose or damage. Therefore, at least two groups of special-shaped locating pin holes 37 with different directions can be set on each side of the inclined pressure plate 33, and the direction of one group satisfies: when the inclined pressure plate 33 is in use, that is, when it forms a specified angle with the first cross plate 31, the special-shaped locating pin holes 37 are completely overlapped with the special-shaped locating pin holes 37 on the second mounting plate 36, and the direction of the other group satisfies: when the inclined pressure plate 33 is in the storage state, that is, when it is overlapped with the second cross plate 32, the special-shaped locating pin holes 37 are completely overlapped with the special-shaped locating pin holes 37 on the second mounting plate 36. In this way, when the inclined pressure plate 33 is stored, the special-shaped locating pins 38 can also be inserted into the special-shaped locating pin holes 37, so that the various structures in the device are connected as a whole to prevent the loss of parts.
[0035] In this embodiment, a limit block 40 is provided between the bottom support plate 10 and the lifting net assembly 30, and an elongated through hole 21 is provided on the pushing plate 20. The limit block 40 is penetrated in the elongated through hole 21. The width of the elongated through hole 21 is greater than the cross-sectional size of the limit block 40, and the length of the elongated through hole 21 is also greater than the cross-sectional size of the limit block 40. Therefore, the pushing plate 20 can slide along the length direction of the elongated through hole 21 and can also rotate around the limit block 40. When in use, the direction of moving the pushing plate 20 can be selected according to specific needs, and the wall concrete slurry spilled on the floor formwork can be pushed and scraped away using the appropriate side of the pushing plate 20.
[0036] For ease of operation, the present embodiment also provides push-pull handles 22 at the long ends of the pusher board 20, so that workers can push the pusher board 20 in different directions.
[0037] The method for cleaning the wall concrete slurry between the steel mesh and the floor slab formwork using the above device comprises the following steps:
[0038] The device is inserted into the gap between the steel mesh and the floor template, and the inclined pressing plate 33 is pressed down to make the end of the second horizontal plate 32 away from the horizontal rotation axis 34 tilt up, thereby lifting the steel mesh;
[0039] The slurry pushing plate 20 is slid along the length direction of the elongated through hole 21, or the slurry pushing plate 20 is rotated around the limit block 40 to scrape the wall concrete slurry on the floor formwork to the inner side of the shear wall formwork.
[0040] Compared with the prior art, the beneficial effects of the present invention are as follows: the mesh lifting assembly 30 is used to first lift the steel mesh in a small range to increase the distance between the floor formwork and the steel mesh, and then the slurry pushing plate 20 is pushed and the wall concrete slurry is pushed and scraped into the wall formwork by the slurry pushing plate 20, so as to quickly complete the cleaning work on the upper surface of the floor formwork, and prevent the spilled wall concrete slurry from final setting on the floor formwork to form ash slag, thereby affecting the pouring quality and surface flatness of the floor. The device has a simple structure, is easy to operate, and has high cleaning efficiency.
[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
[0042] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.
Claims
1. A device for cleaning concrete under a steel mesh, characterized in that: It includes a bottom support plate, a pusher plate and a mesh lifting assembly. The bottom support plate and the mesh lifting assembly are fixedly connected. The pusher plate is movably arranged between the bottom support plate and the mesh lifting assembly. The mesh lifting assembly is used to lift the steel mesh, and the pusher plate is used to scrape the concrete under the steel mesh.
2. The device for cleaning concrete under the steel mesh according to claim 1, characterized in that: The net lifting assembly includes a first transverse plate, a second transverse plate and an inclined pressure plate. The first transverse plate is provided with a horizontal rotating shaft. The second transverse plate and the inclined pressure plate extend in opposite directions from the horizontal rotating shaft respectively. The second transverse plate is rotatably connected to the horizontal rotating shaft. The inclined pressure plate is fixedly connected to the second transverse plate and forms an acute angle with the first transverse plate.
3. The device for cleaning concrete under the steel mesh according to claim 2, characterized in that: Two opposite groups of first mounting plates are arranged on the first transverse plate, the second transverse plate is located between the two groups of the first mounting plates, and the horizontal rotating shafts are respectively fixedly arranged on the facing surfaces of the two groups of the first mounting plates.
4. The device for cleaning concrete under the steel mesh according to claim 2, characterized in that: Two opposite groups of second mounting plates are arranged on the second transverse plate, the inclined pressure plate is located between the two groups of the second mounting plates, the second mounting plate and the inclined pressure plate are respectively provided with corresponding special-shaped positioning pin holes, and special-shaped positioning pins are arranged in the special-shaped positioning pin holes.
5. The device for cleaning concrete under the steel mesh according to claim 4, characterized in that: The cross section of the special-shaped positioning pin hole is a regular polygon, and at least two groups of the special-shaped positioning pin holes with different directions are arranged on each side of the inclined pressure plate.
6. The device for cleaning concrete under a steel mesh according to any one of claims 1 to 5, characterized in that: A limit block is provided between the bottom support plate and the net lifting assembly, and an elongated through hole is provided on the push plate. The limit block passes through the elongated through hole, and the width of the elongated through hole is greater than the cross-sectional size of the limit block.
7. The device for cleaning concrete under the steel mesh according to claim 6, characterized in that: The long ends of the pusher plates are respectively provided with push-pull handles.
8. A method for using the device for cleaning concrete under a steel mesh according to any one of claims 1 to 7, characterized in that: Includes steps: Extend the concrete cleaning device under the steel mesh into the gap between the steel mesh and the floor slab formwork, press down the inclined pressing plate, so that the end of the second horizontal plate away from the horizontal rotating shaft is tilted, and the steel mesh is lifted; The slurry pushing plate is slid along the length direction of the long through hole, or the slurry pushing plate is rotated around the limit block to scrape the wall concrete slurry on the floor formwork to the inner side of the shear wall formwork.