CN213359449U - Leveling double-roller for cast-in-place concrete floor - Google Patents
Leveling double-roller for cast-in-place concrete floor Download PDFInfo
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- CN213359449U CN213359449U CN202021162360.9U CN202021162360U CN213359449U CN 213359449 U CN213359449 U CN 213359449U CN 202021162360 U CN202021162360 U CN 202021162360U CN 213359449 U CN213359449 U CN 213359449U
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Abstract
The utility model relates to a technical field of making level of cast in situ concrete floor discloses a twin drum of making level for cast in situ concrete floor, and cast-in-place has concrete layer on the floor template, be the corresponding cylinder of arranging including guide rail, support body and two, the guide rail is located concrete layer's top, support body swing joint guide rail, two cylinder dock the support body respectively, and the outward appearance of two cylinders is same horizontal plane and the concrete layer of contradicting. When in leveling, the frame body is driven to move along the guide rail, the frame body moves to drive the two roller bodies to move synchronously, and the outer surfaces of the two roller bodies respectively abut against the concrete layer, so that the top end surfaces of the concrete layer are subjected to double flattening when the two roller bodies move synchronously; under the cooperation of the guide rail, the frame body and the two roller bodies, the leveling is controlled conveniently, errors caused by randomness are avoided, the continuity of the leveling is ensured, the flatness meets the requirement of high precision, labor and material cost is saved, and the construction efficiency is improved.
Description
Technical Field
The patent of the utility model relates to a cast in situ concrete floor's technical field that makes level particularly, relates to a twin drum of making level for cast in situ concrete floor.
Background
Leveling to ensure that objects are in the same horizontal plane; generally, in building construction, some equipment, such as a level meter, a theodolite and the like, is used together to make the surface, the side surface and the like of a masonry or a construction object look flat without gradient.
At present, the flatness of the ground of a cast-in-place concrete building cannot meet the requirement of high precision, secondary leveling needs to be carried out through a decoration method, and the secondary decoration method may cause quality problems of cracking, hollowing and the like, so that troubles are caused to later-period maintenance.
In the prior art, when the cast-in-place concrete floor is leveled, workers use a scraper to level section by section according to the feeling, the continuity of leveling cannot be ensured, and certain randomness is controlled in leveling, so that the precision of the floor flatness does not meet the requirement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a twin drum of making level for cast in situ concrete floor aims at solving prior art, and the not high problem of precision of floor making level.
The utility model discloses a realize like this, a twin drum of making level for cast in situ concrete floor, cast-in-place on the floor template has concrete layer, be the corresponding cylinder of arranging including guide rail, support body and two, the guide rail is in concrete layer's top, support body swing joint the guide rail, two the cylinder docks respectively the support body, two same horizontal plane is personally submitted to the outward appearance of cylinder and is contradicted concrete layer.
Furthermore, the frame body comprises a frame plate and at least one rolling shaft, the inner end of the rolling shaft is in butt joint with the upper portion of the frame plate in a penetrating mode, the outer end of the rolling shaft is movably in butt joint with the guide rail, and the roller body is in butt joint with the lower portion of the frame plate.
Further, the frame plate comprises a top plate, two inclined supporting plates and a bottom plate, the top plate and the bottom plate are arranged in a vertically parallel corresponding manner, two ends of the top plate are respectively butted with the upper parts of the two inclined supporting plates, two ends of the bottom plate are respectively butted with the lower parts of the two inclined supporting plates, the lower parts of the inclined supporting plates are butted with the bottom plate to form a connecting part, and the roller body and the connecting part are arranged in a butted manner; the top plate, the two inclined supporting plates and the bottom plate are arranged in a ladder shape with a small top and a big bottom.
Furthermore, the frame plate comprises two reinforcing plates, two ends of the top plate are respectively butted with the upper parts of the two reinforcing plates, the lower parts of the two reinforcing plates are butted to form butted parts, and the butted parts are connected with the bottom plate; the top plate and the two reinforcing plates are arranged in a triangular shape with a large top and a small bottom.
Further, the top plate is provided with an ear plate, and the ear plate extends upwards; the otic placode is equipped with the auxiliary shaft, the butt joint is worn to establish by the inner of auxiliary shaft the otic placode, the outer end of auxiliary shaft is along deviating from the otic placode direction extends outwards and arranges, just the auxiliary shaft with the roller bearing is parallel correspondence and arranges.
Further, the frame body comprises two rolling shafts, and the auxiliary shaft is positioned above the rolling shafts; along the top-down direction, the auxiliary shaft and the two rolling shafts are arranged in a staggered mode along a triangular shape.
Furthermore, the frame body comprises an auxiliary plate, the lower portion of the auxiliary plate is in butt joint with the frame plate, the upper portion of the auxiliary plate extends upwards to be spaced from the frame plate, the inner end of the roller is in butt joint with the guide rail, and the outer end of the roller penetrates through the frame plate and extends to penetrate through the upper portion of the auxiliary plate.
Further, the auxiliary plate comprises a lower auxiliary plate and an upper auxiliary plate, the lower part of the lower auxiliary plate is in butt joint with the frame plate, the upper part of the lower auxiliary plate is in butt joint with the lower part of the upper auxiliary plate, and the upper part of the upper auxiliary plate extends upwards; the lower auxiliary plate is obliquely arranged along the direction departing from the frame plate, and the upper auxiliary plate is upwards extended and arranged along the direction vertical to the concrete layer; the outer end of the roller penetrates through the frame plate and extends through the upper auxiliary plate.
Furthermore, the roller body is cylindrically arranged, a rolling bearing is arranged in the middle of the roller body, and the frame body is in butt joint with the rolling bearing.
Further, the roller body is arranged in a hollow mode to form a cavity, and the cavity is filled with water.
Compared with the prior art, the utility model provides a pair of cylinders of making level for cast in situ concrete floor, when carrying out concrete layer and looking for level, through artifical or external force drive support body along the guide rail removal, the support body removes and drives two drum bodies synchronous motion, because the surface of two drum bodies is contradicted the concrete layer respectively, therefore, when two drum bodies synchronous motion, carry out the dual flattening to the top face on concrete layer, thereby realize the operation of making level; meanwhile, under the matching action of the guide rail, the frame body and the two roller bodies, the leveling is convenient to control, errors caused by randomness of a traditional mode are avoided, the continuity of the leveling is ensured, good appearance of the floor is ensured, the flatness meets the requirement of high precision, labor and material cost is saved, and the construction efficiency is improved.
Drawings
FIG. 1 is a schematic plan view of a leveling double drum for cast-in-place concrete floors provided by the present invention;
FIG. 2 is a schematic construction plan view of a leveling double drum for cast-in-place concrete floors provided by the present invention;
FIG. 3 is a schematic cross-sectional view of the part A of the leveling double drum for cast-in-place concrete floors provided by the present invention;
fig. 4 is a partially enlarged schematic view of a leveling double-roller for cast-in-place concrete floors provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1-4, the preferred embodiment of the present invention is shown.
The utility model provides a double drum of making level for cast in situ concrete floor, cast-in-place has concrete layer 70 on the floor template, includes guide rail 60, support body 10 and two drum bodies 20, and two drum bodies 20 are the drum body 20 of corresponding arrangement, and guide rail 60 is located concrete layer 70's top, support body 10 swing joint guide rail 60, and two drum bodies 20 dock support body 10 respectively, and the surface of two drum bodies 20 is same horizontal plane and contradicts concrete layer 70.
When the leveling double-roller is used for leveling the concrete layer 70, the frame body 10 is driven to move along the guide rail 60 manually or by external force, the frame body 10 moves to drive the two roller bodies 20 to move synchronously, and the outer surfaces of the two roller bodies 20 respectively abut against the concrete layer 70, so that the top end surface of the concrete layer 70 is subjected to double leveling when the two roller bodies 20 move synchronously, and the leveling operation is realized; meanwhile, under the matching action of the guide rail 60, the frame body 10 and the two roller bodies 20, the leveling is convenient to control, errors caused by randomness of a traditional mode are avoided, the continuity of the leveling is ensured, good appearance of a floor is ensured, the flatness meets the requirement of high precision, labor and material cost is saved, and the construction efficiency is improved.
When the leveling operation is performed, the ear plate 15 above the guide rail 60 is manually pulled to drive the frame body 10 and the roller body 20 to rotate so as to level the cast-in-place reinforced concrete layer 70.
Or, the auxiliary shaft 40 or the roller 30 is driven to rotate by the driving motor, so as to realize the rotation equivalent to the track; thereby driving the frame body 10 and the roller body 20 to rotate to level the cast-in-place reinforced concrete layer 70.
The frame body 10 comprises a frame plate and at least one rolling shaft 30, the inner end of the rolling shaft 30 penetrates through the upper part of the butt-joint frame plate, the outer end of the rolling shaft 30 is movably arranged in butt joint with the guide rail 60, and the roller body 20 is arranged in butt joint with the lower part of the frame plate; thus, the frame body 10 moves relative to the guide rail 60 by the movement of the roller 30 relative to the guide rail 60, and the movement of the frame body 10 is more stable by the action of the roller 30.
The roller 30 is disposed in a cylindrical shape, and the roller 30 is relatively moved along the guide rail 60 by the rotation of the roller 30.
The roller 30 comprises a shaft body 32 and a shaft sleeve 31, the shaft sleeve 31 is movably arranged in a butt joint with the guide rail 60, the inner end of the shaft body 32 is embedded into the shaft sleeve 31, and the outer end of the shaft body 32 extends through the frame plate butt joint auxiliary plate 80 along the direction departing from the shaft sleeve 31; in this way, the relative position of the roller body 20 and the guide rail 60 can be adjusted by adjusting the relative position of the shaft body 32 and the shaft sleeve 31, so that different construction requirements can be met.
The frame plate comprises a top plate 11, two inclined supporting plates 13 and a bottom plate 12, the top plate 11 and the bottom plate 12 are arranged in a vertically parallel corresponding manner, two ends of the top plate 11 are respectively butted with the upper parts of the two inclined supporting plates 13, two ends of the bottom plate 12 are respectively butted with the lower parts of the two inclined supporting plates 13, the lower parts of the inclined supporting plates 13 are butted with the bottom plate 12 to form a connecting part 16, and the roller body 20 and the connecting part 16 are arranged in a butted manner; the top plate 11, the two inclined supporting plates 13 and the bottom plate 12 are arranged in a ladder shape with a small top and a big bottom; the overall stability of the frame plate is better.
The frame plate comprises two reinforcing plates 14, two ends of the top plate 11 are respectively butted with the upper parts of the two reinforcing plates 14, the lower parts of the two reinforcing plates 14 are butted to form a butted part 17, and the butted part 17 is connected with the bottom plate 12; the overall stability of the shelf board is enhanced by the two reinforcing plates 14.
The top plate 11 and the two reinforcing plates 14 are arranged in a triangular shape with a large top and a small bottom; the stability of the whole formed by the top plate 11 and the two reinforcing plates 14 is better.
The bottom plate 12, one inclined supporting plate 13 and one reinforcing plate 14 are arranged in a triangular shape with a small upper part and a large lower part; the stability of the integral structure formed by the top plate 11, one of the inclined supporting plates 13 and one of the reinforcing plates 14 is better.
The bottom plate 12, the other inclined supporting plate 13 and the other reinforcing plate 14 are arranged in a triangular shape with a small upper part and a large lower part; the stability of the integral structure formed by the top plate 11, the other diagonal bracing plate 13 and the other reinforcing plate 14 is better.
The top plate 11 is provided with an ear plate 15, and the ear plate 15 extends upwards; the lug plate 15 is provided with an auxiliary shaft 40, the inner end of the auxiliary shaft 40 penetrates through the butt joint lug plate 15, the outer end of the auxiliary shaft 40 extends outwards along the direction departing from the lug plate 15, and the auxiliary shaft 40 and the rolling shaft 30 are arranged in parallel and correspondingly; the outer end of the auxiliary shaft 40 is butted with the outside, so that when the leveling operation is performed, the auxiliary shaft 40 rotates along with the roller 30 when the roller 30 rotates, the moving stability of the frame body 10 is enhanced, and the leveling precision of the roller body 20 is improved.
The frame body 10 includes two rollers 30, and the auxiliary shaft 40 is positioned above the rollers 30; the auxiliary shaft 40 and the two rollers 30 are arranged in a staggered manner along a triangular shape from top to bottom; when the roller 30 rotates, the auxiliary shaft 40 rotates therewith, so that the moving stability of the frame body 10 is enhanced, and the leveling precision of the roller body 20 is improved.
Along the horizontal direction, the two rollers 30 are arranged in the same horizontal plane; therefore, the top plate 11 and the guide rail 60 are arranged in parallel, and the two rollers 30 are synchronously and movably connected with the guide rail 60, so that the movement stability of the frame body 10 is enhanced, and the leveling precision of the two roller bodies 20 is improved.
The frame body 10 comprises an auxiliary plate 80, the lower part of the auxiliary plate 80 is in butt joint with the frame plate, the upper part of the auxiliary plate 80 extends upwards to be in interval arrangement with the frame plate, the inner end of the rolling shaft 30 is in butt joint with the guide rail 60, and the outer end of the rolling shaft 30 penetrates through the frame plate and extends through the upper part of the auxiliary plate 80; the stability of the roller 30 is enhanced by the frame plate and the auxiliary plate 80.
The auxiliary plate 80 includes a lower auxiliary plate 81 and an upper auxiliary plate 82, a lower portion of the lower auxiliary plate 81 is in butt joint with the shelf plate, an upper portion of the lower auxiliary plate 81 is in butt joint with a lower portion of the upper auxiliary plate 82, and an upper portion of the upper auxiliary plate 82 extends upward; the lower auxiliary plate 81 is obliquely arranged along the direction departing from the frame plate, and the upper auxiliary plate 82 extends upwards along the direction vertical to the concrete layer 70; the outer end of the roller 30 penetrates through the frame plate and extends through the upper auxiliary plate 82; thus, the supporting strength of the auxiliary plate 80 is enhanced by the cooperation between the lower auxiliary plate 81 and the upper auxiliary plate 82, and the installation stability of the roller 30 is improved.
A hollow area is formed between the frame plate and the auxiliary plate 80, so that the overall dead weight of the frame body 10 is reduced while the stability of the roller 30 is ensured, and the driving of the frame body 10 is facilitated.
The roller body 20 is arranged in a cylindrical shape, the rolling bearing 50 is arranged in the middle of the roller body 20, and the frame body 10 and the rolling bearing 50 are arranged in a butt joint manner; the rolling of the roller body 20 is realized, so that the flattening of the concrete layer 70 is realized by the rolling of the roller body 20 during the leveling.
The two roller bodies 20 are both arranged in a cylindrical mode, the diameters of the two roller bodies 20 are consistent, installation of the two roller bodies 20 is facilitated, meanwhile the two roller bodies 20 are arranged on the same horizontal plane, multiple flattening of the concrete layer 70 is achieved, and the leveling precision is improved.
The roller body 20 is arranged in a hollow manner to form a cavity, and the cavity is filled with water; thus, the self weight of the roller body 20 is ensured, and the leveling effect is ensured; in addition, when the construction is finished, water in the cavity is discharged, the self weight of the roller body 20 is reduced, and the roller body 20 is convenient to transfer.
The support comprises at least one support body, wherein the support body comprises a support rod and a support seat which are longitudinally arranged, the lower part of the support rod is fixedly arranged, and the support seat and the support rod are vertically connected; the support base is formed with at least one bearing portion for supporting the guide rail 60.
The bearing of the guide rail 60 is realized through the bracket body, and the arrangement stability of the guide rail 60 is improved; because the bracing piece is longitudinal arrangement, the bracing piece makes guide rail 60 have a take the altitude, is convenient for make level the installation of system and the operation of making level, under the effect of the bearing part of supporting seat, plays support and fixed to guide rail 60, strengthens the installation steadiness of guide rail 60, has guaranteed the stability of guide rail 60, the construction safety of the operation of making level of guarantee.
The supporting rod comprises a sleeve and a supporting screw rod, the supporting screw rod is longitudinally arranged, the lower end of the supporting screw rod is fixedly arranged, the upper end of the supporting screw rod is movably butted with the sleeve, and the supporting seat is butted with the sleeve up and down; through supporting screw and sleeve pipe, realize the elevation regulation of supporting seat, applicable in the floor of various different thickness.
Furthermore, the supporting rod comprises an adjusting nut, the adjusting nut and the sleeve are arranged in a butt joint mode, the upper end of the supporting screw penetrates through the inner portion of the sleeve, the supporting screw penetrates through the adjusting nut, and the supporting screw and the adjusting nut are arranged in a threaded connection mode; through twisting the adjusting nut soon, realize the regulation of the relative position between supporting screw and the sleeve pipe, realize the elevation regulation of supporting seat, applicable in the floor of various different thickness.
The supporting seat comprises a supporting plate and two limiting plates, the supporting plate is horizontally arranged, the limiting plates are longitudinally arranged, two ends of the supporting plate are respectively butted with the lower ends of the two limiting plates, and the upper ends of the limiting plates extend upwards; the supporting plate is provided with a bearing part; through the bearing part of the supporting plate, the bearing of the guide rail 60 is realized, and the setting level effect and the stability of the guide rail 60 are ensured.
The backup pad is formed with two bearing parts, and two bearing parts are central symmetry and arrange, realize that the level of guide rail 60 bears, guarantee follow-up accurate nature of the operation of making level.
A guide rail 60 support for cast-in-place concrete floors comprises a reinforcing member, wherein the reinforcing member is used for reinforcing a guide rail 60, the guide rail 60 is arranged between the reinforcing member and a support plate, the reinforcing member is abutted against the guide rail 60, and a reinforcing acting force is applied downwards; the stability of the arrangement of the guide rail 60 is enhanced under the cooperation of the reinforcing member and the support plate.
The supporting plate is provided with two reinforcing grooves, two ends of the reinforcing member are respectively connected with the two reinforcing grooves, the middle part of the reinforcing member is abutted against the guide rail 60, and a reinforcing acting force is applied downwards; through two stiffening grooves, the setting steadiness of reinforcing spare to the guarantee adds the effort to guide rail 60 formula, strengthens guide rail 60's setting steadiness.
The reinforcing member is a strong elastic member, which applies an elastic force downward to reinforce the guide rail 60; installation of the guide rail 60 and adjustment of the guide rail 60 are facilitated, and at the same time, it is facilitated to apply an elastic reinforcement force to the guide rail 60.
The reinforcing member is a strong rubber band, and the guide rail 60 is reinforced by applying elastic force downwards through the strong rubber band, so that the arrangement is convenient, and the manufacturing cost is reduced.
The bearing part comprises an upper bearing surface, an inclined limiting surface and a lower bearing surface, the upper bearing surface and the lower bearing surface are vertically parallel and staggered, the inclined limiting surface is obliquely arranged along the top-down direction, and two ends of the inclined limiting surface are respectively butted with the upper bearing surface and the lower bearing surface; the guide rail 60 has an abutting surface which is arranged in an overlapping manner with the inclined restriction surface when the guide rail 60 is installed on the bearing part; thus, under the action of the limiting surface, the guide rail 60 is limited and fixed, and the arrangement stability of the guide rail 60 is enhanced.
The two bearing parts are symmetrically arranged, and the two inclined limiting surfaces limit and fix the guide rail 60 respectively, so that the guide rail 60 is prevented from deviating.
The device comprises a plurality of bracket bodies, wherein the bracket bodies are sequentially arranged at intervals along the length direction of a guide rail 60 and synchronously bear the guide rail 60; through each stake body, support guide rail 60 multizone, improve guide rail 60's stability that sets up.
The bearing parts of the bracket bodies are arranged on the same horizontal plane, so that the guide rails 60 are horizontally arranged, and the precision of leveling operation is improved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The leveling double-roller for the cast-in-place concrete floor is characterized in that a concrete layer is cast on a floor slab template in a cast-in-place mode, and the leveling double-roller comprises a guide rail, a support body and two roller bodies which are correspondingly arranged, wherein the guide rail is positioned above the concrete layer, the support body is movably connected with the guide rail, the two roller bodies are respectively butted with the support body, and the outer surfaces of the two roller bodies are in the same horizontal plane and are butted with the concrete layer.
2. The double leveling rollers for a cast-in-place concrete floor as claimed in claim 1, wherein the frame body comprises a frame plate and at least one roller, the inner end of the roller is inserted into and butted with the upper part of the frame plate, the outer end of the roller is movably butted with the guide rail, and the roller body is butted with the lower part of the frame plate.
3. The leveling double-roller for the cast-in-place concrete floor according to claim 2, wherein the frame plate comprises a top plate, two inclined supporting plates and a bottom plate, the top plate and the bottom plate are arranged in a vertically parallel correspondence, two ends of the top plate are respectively butted with the upper parts of the two inclined supporting plates, two ends of the bottom plate are respectively butted with the lower parts of the two inclined supporting plates, the lower parts of the inclined supporting plates are butted with the bottom plate to form a connecting part, and the roller body and the connecting part are arranged in a butted manner; the top plate, the two inclined supporting plates and the bottom plate are arranged in a ladder shape with a small top and a big bottom.
4. The leveling double drum for the cast-in-place concrete floor according to claim 3, wherein the frame plate comprises two reinforcing plates, two ends of the top plate are respectively butted with the upper parts of the two reinforcing plates, the lower parts of the two reinforcing plates are butted to form a butted part, and the butted part is connected with the bottom plate; the top plate and the two reinforcing plates are arranged in a triangular shape with a large top and a small bottom.
5. The leveling double drum for cast-in-place concrete floors as claimed in claim 3, wherein said top plate is provided with ear plates extending upward; the otic placode is equipped with the auxiliary shaft, the butt joint is worn to establish by the inner of auxiliary shaft the otic placode, the outer end of auxiliary shaft is along deviating from the otic placode direction extends outwards and arranges, just the auxiliary shaft with the roller bearing is parallel correspondence and arranges.
6. The double leveling roller for a cast-in-place concrete floor according to claim 5, wherein said frame body comprises two of said rollers, and said auxiliary shaft is located above said rollers; along the top-down direction, the auxiliary shaft and the two rolling shafts are arranged in a staggered mode along a triangular shape.
7. The twin leveling drum according to any one of claims 2 to 6 wherein the frame body includes an auxiliary plate, the lower portion of the auxiliary plate is in abutting engagement with the frame plate, the upper portion of the auxiliary plate extends upwardly in spaced relation to the frame plate, the inner end of the roller abuts the rail, and the outer end of the roller extends through the frame plate and through the upper portion of the auxiliary plate.
8. The leveling double drum for a cast-in-place concrete floor according to claim 7, wherein the auxiliary plate comprises a lower auxiliary plate and an upper auxiliary plate, a lower portion of the lower auxiliary plate is in butt joint arrangement with the frame plate, an upper portion of the lower auxiliary plate is in butt joint arrangement with a lower portion of the upper auxiliary plate, and an upper portion of the upper auxiliary plate extends upward; the lower auxiliary plate is obliquely arranged along the direction departing from the frame plate, and the upper auxiliary plate is upwards extended and arranged along the direction vertical to the concrete layer; the outer end of the roller penetrates through the frame plate and extends through the upper auxiliary plate.
9. The double leveling rollers for cast-in-place concrete floors as claimed in any one of claims 1 to 6, wherein the roller bodies are arranged in a cylindrical shape, the rolling bearings are arranged in the middle of the roller bodies, and the frame bodies are arranged in a butt joint with the rolling bearings.
10. The leveling double drum for cast-in-place concrete floors as claimed in any one of claims 1 to 6, wherein the drum body is hollow to form a cavity, and the cavity is filled with water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021162360.9U CN213359449U (en) | 2020-06-20 | 2020-06-20 | Leveling double-roller for cast-in-place concrete floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021162360.9U CN213359449U (en) | 2020-06-20 | 2020-06-20 | Leveling double-roller for cast-in-place concrete floor |
Publications (1)
| Publication Number | Publication Date |
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| CN213359449U true CN213359449U (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021162360.9U Active CN213359449U (en) | 2020-06-20 | 2020-06-20 | Leveling double-roller for cast-in-place concrete floor |
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| Country | Link |
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| CN (1) | CN213359449U (en) |
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2020
- 2020-06-20 CN CN202021162360.9U patent/CN213359449U/en active Active
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