CN112622044A - Self-compacting concrete pouring method and pouring tool thereof - Google Patents
Self-compacting concrete pouring method and pouring tool thereof Download PDFInfo
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- CN112622044A CN112622044A CN202011478258.4A CN202011478258A CN112622044A CN 112622044 A CN112622044 A CN 112622044A CN 202011478258 A CN202011478258 A CN 202011478258A CN 112622044 A CN112622044 A CN 112622044A
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- rotate
- rotating rod
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/16—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
- B28C5/0831—Drives or drive systems, e.g. toothed racks, winches
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses a self-compacting concrete pouring method and a pouring tool thereof, wherein the self-compacting concrete pouring method comprises the following steps: the method comprises the following steps: firstly, pushing a support plate according to a position to be poured, and parking a shell above the position to be poured; step two: then, materials such as cement are placed into the shell from the feeding hopper, the stepping motor is started, the stepping motor can drive the second rotating rod to rotate, the second rotating rod can drive the driving gear to rotate, the second rotating rod can drive the two third stirring blades and the two second stirring blades to rotate, and the materials in the shell are stirred and mixed; step three: the driving gear drives two driven gears to rotate through the toothed belt, and the driven gears can drive a rotating rod to rotate so as to drive a stirring blade to rotate. According to the invention, the height of the pouring tool can be adjusted according to actual conditions, so that concrete can be automatically stirred, the practicability is improved, and the cost is reduced.
Description
Technical Field
The invention relates to the technical field of concrete pouring, in particular to a self-compacting concrete pouring method and a pouring tool thereof.
Background
And (3) pouring concrete, wherein before pouring, sundries such as garbage, soil and oil stains on the steel bars in the template need to be removed completely, and whether cement mortar cushion blocks and plastic cushion blocks of the steel bars are well cushioned or not is checked. If wooden templates are used, the templates should be wetted by watering. The cleaning opening of the column template is sealed after removing impurities and accumulated water. The dosage of each material is determined according to the mixing proportion, and the water consumption of the mixing proportion is adjusted timely by frequently measuring the water content of the aggregate. Wherein, the process of mixing the concrete is as follows: pouring the stones, filling the cement and finally pouring the sand. When the admixture is mixed, the powdery admixture is preprocessed and loaded into a small package (preferably a plastic bag) according to the adding amount of each plate, and is added with the fine and coarse aggregates when in use; the liquid additive and water are simultaneously added into the mixer according to the dosage of each disk for mixing, in order to ensure that the concrete is uniformly mixed, the concrete pump is required to continuously work when pumping the concrete from the time when all the mixture is added into the mixing drum to the time when the concrete begins to be unloaded in the concrete transportation process, and if faults occur, the stop time exceeds 45 minutes or the concrete is isolated, the residual concrete in the pipe is immediately washed by pressure water or other methods.
Current self-compaction concrete placement instrument is at the in-process that uses, and the instrument is put into to the muddy earth that will mix, and the rethread instrument of pouring is pour, and current instrument of pouring can mostly not be according to actual conditions height-adjusting, and can't stir the concrete by oneself, and the practicality is low, and use cost is high.
In order to solve the problems, the invention provides a self-compacting concrete pouring method and a pouring tool thereof.
Disclosure of Invention
The invention aims to overcome the defects that in the prior art, the mixed concrete is put into a tool and then poured by the pouring tool in the using process of the conventional self-compacting concrete pouring tool, the height of the conventional pouring tool cannot be adjusted according to actual conditions, the concrete cannot be automatically stirred, the practicability is low, and the use cost is high, so that the self-compacting concrete pouring method and the pouring tool thereof are provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
a self-compacting concrete pouring method comprises the following steps:
the method comprises the following steps: firstly, pushing a support plate according to a position to be poured, and parking a shell above the position to be poured;
step two: then, materials such as cement are placed into the shell from the feeding hopper, the stepping motor is started, the stepping motor can drive the second rotating rod to rotate, the second rotating rod can drive the driving gear to rotate, the second rotating rod can drive the two third stirring blades and the two second stirring blades to rotate, and the materials in the shell are stirred and mixed;
step three: the driving gear drives the two driven gears to rotate through the toothed belt, the driven gears can drive the first rotating rod to rotate, and further drive the first stirring blade to rotate, so that the first stirring blade can be matched with the third stirring blade and the second stirring blade to further stir and mix concrete in the shell;
step four: after the muddy earth mixes, the servo motor is restarted, and servo motor passes through the output and drives the worm and rotate, and the worm can drive the worm wheel and rotate, and then drives the threaded rod and rotate, and the threaded rod can drive the threaded block up-and-down motion, and the threaded block passes through the connecting rod and drives the casing and reciprocate, and the people can control the discharging pipe this year and pour the distance between the point.
The utility model provides a self-compaction concrete placement instrument, includes two backup pads and casing, two the lower extreme of backup pad is all rotated and is connected with the pulley, two the backup pad symmetry sets up the left and right sides at the casing, every spacing spout has all been seted up on the lateral wall of backup pad.
Preferably, the both sides of casing fixed mounting respectively have the slide bar, slide bar sliding connection is in spacing spout, every the equal fixed mounting in one side that spacing spout deviates from the casing has the screw thread piece, the equal vertical threaded connection in center department of screw thread piece has the threaded rod, the upper end fixed mounting of threaded rod has the stopper.
Preferably, the lower extreme of threaded rod rotates and is connected with the connecting plate, connecting plate fixed mounting is on the lateral wall of backup pad, it has the worm wheel to set up fixed cover on the threaded rod, fixed mounting has servo motor in the lateral wall of backup pad, servo motor's output fixed mounting has the worm.
Preferably, the worm is connected with the worm wheel in a meshed mode, two connecting plates are symmetrically and fixedly mounted in the shell, a rotating rod is inserted into the center of each connecting plate in an penetrating mode, each rotating rod is rotatably connected into the connecting plates, and a stirring blade is fixedly mounted at the lower end of each rotating rod.
Preferably, every the equal fixed mounting in upper end of dwang has driven gear, the center department fixed mounting of lateral wall has the dwang No. two in the casing, the upper end of dwang No. two is provided with step motor, step motor fixed mounting is in the last lateral wall of casing, the symmetry is provided with two No. three stirring leaves on the lateral wall of dwang No. two.
Preferentially, fixed mounting has the driving gear on the upper end lateral wall of No. two dwangs, be connected through the cingulum transmission between driving gear and two driven gear, the lower extreme symmetry fixed mounting of No. two dwangs has two No. two stirring leaves.
Preferentially, alternate setting between No. three stirring leaves, a stirring leaf and No. two stirring leaves, the up end symmetry of casing is provided with feed hopper, every feed hopper all is provided with sealed lid, the bottom face fixed mounting of casing has the discharging pipe.
Compared with the prior art, the invention has the beneficial effects that:
firstly, according to the position to be poured, a supporting plate is pushed, a shell is parked above the position to be poured, then materials such as cement are put into the shell from a feeding funnel, a stepping motor is started, the stepping motor can drive a second rotating rod to rotate, the second rotating rod can drive a driving gear to rotate, the second rotating rod can also drive two third stirring blades and two second stirring blades to rotate, the materials in the shell are stirred and mixed, the driving gear drives two driven gears to rotate through a toothed belt, the driven gears can drive a first rotating rod to rotate and further drive a first stirring blade to rotate, so that the first stirring blade can be matched with the third stirring blade and the second stirring blade to further stir and mix concrete in the shell, after the concrete is mixed, a servo motor is started again, the servo motor drives a worm to rotate through an output end, and the worm can drive a worm wheel to rotate, and then drive the threaded rod and rotate, the threaded rod can drive the threaded block up-and-down motion, the threaded block drives the casing through the connecting rod and reciprocates, and then can control the discharging pipe and pour the distance between the points, it is nimble convenient, the instrument of pouring in the invention can be according to actual conditions height-adjusting, and then can stir the concrete by oneself, has improved the practicality, the cost is reduced.
Drawings
Fig. 1 is a schematic front structural view of a self-compacting concrete casting tool according to the present invention.
In the figure: stirring leaf No. 1, stirring leaf No. 2 No. 3 dwang, dwang No. 4, stirring leaf No. 5 No. three, 6 casings, 7 driven gear, 8 driving gears, 9 cingulums, 10 connecting plates, 11 screw thread pieces, 12 stopper, 13 feeding funnel, 14 sealed lid, 15 backup pads, 16 threaded rods, 17 spacing spout, 18 worm wheel, 19 discharging pipes, 20 servo motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1, a self-compacting concrete casting method includes the following steps:
the method comprises the following steps: firstly, pushing the support plate 15 according to the position to be poured, and parking the shell 6 above the position to be poured;
step two: then, materials such as cement are placed into the shell 6 from the feeding hopper 13, the stepping motor is started, the stepping motor can drive the second rotating rod 4 to rotate, the second rotating rod 4 can drive the driving gear 8 to rotate, the second rotating rod 4 can drive the two third stirring blades 5 and the two second stirring blades 2 to rotate, and the materials in the shell 6 are stirred and mixed;
step three: the driving gear 8 drives the two driven gears 7 to rotate through the toothed belt 9, the driven gears 7 can drive the first rotating rod 3 to rotate, and further drive the first stirring blade 1 to rotate, so that the first stirring blade 1 can be matched with the third stirring blade 5 and the second stirring blade 2 to further stir and mix concrete in the shell 6;
step four: after the concrete is mixed, the servo motor 20 is started, the servo motor 20 drives the worm to rotate through the output end, the worm can drive the worm wheel to rotate, the threaded rod 16 is further driven to rotate, the threaded rod 16 can drive the threaded block 11 to move up and down, the threaded block 11 drives the shell 6 to move up and down through the connecting rod, and the discharging pipe 19 can be controlled by a person in this year and the distance between pouring points can be controlled.
The invention also discloses a self-compacting concrete pouring tool, which comprises two support plates 15 and a shell 6, wherein the lower ends of the two support plates 15 are rotatably connected with pulleys, the two support plates 15 are symmetrically arranged at the left side and the right side of the shell 6, the support plates 15 are pushed according to the position to be poured, the shell 6 is parked above the position to be poured, the side wall of each support plate 15 is provided with a limiting chute 17, the two sides of the shell 6 are respectively and fixedly provided with a slide rod which is connected in the limiting chute 17 in a sliding manner, one side of each limiting chute 17, which is far away from the shell 6, is fixedly provided with a thread block 11, the center of the thread block 11 is vertically in threaded connection with a threaded rod 16, the upper end of the threaded rod 16 is fixedly provided with a limiting block 12, the lower end of the threaded rod 16 is rotatably connected with a connecting plate which is fixedly arranged on, a servo motor 20 is fixedly installed in the side wall of the supporting plate 15, a worm is fixedly installed at the output end of the servo motor 20, the worm and the worm wheel 18 are meshed and connected, after the concrete is mixed, the servo motor 20 is started, the servo motor 20 drives the worm to rotate through the output end, the worm drives the worm wheel to rotate, and further drives the threaded rod 16 to rotate, the threaded rod 16 drives the threaded block 11 to move up and down, the threaded block 11 drives the shell 6 to move up and down through the connecting rod, the distance between the discharging pipe 19 and a pouring point can be controlled by an individual in the year, two connecting plates 10 are symmetrically and fixedly installed in the shell 6, a first rotating rod 3 is inserted in the center of each connecting plate 10, each first rotating rod 3 is rotatably connected in the connecting plate 10, a first stirring blade 1 is fixedly installed at the lower end of each first rotating rod 3, and a driven gear 7 is fixedly installed, a second rotating rod 4 is fixedly arranged at the center of the upper side wall in the shell 6, a stepping motor is arranged at the upper end of the second rotating rod 4, the stepping motor is fixedly arranged in the upper side wall of the shell 6, two third stirring blades 5 are symmetrically arranged on the side wall of the second rotating rod 4, a driving gear 8 is fixedly arranged on the upper side wall of the second rotating rod 4, the driving gear 8 drives two driven gears 7 to rotate through a toothed belt 9, the driven gear 7 can drive the first rotating rod 3 to rotate, and further drive the first stirring blade 1 to rotate, so that the first stirring blade 1 can be matched with the third stirring blade 5 and the second stirring blade 2 to further stir and mix concrete in the shell 6, the driving gear 8 is in transmission connection with the two driven gears 7 through the toothed belt 9, two second stirring blades 2 are symmetrically and fixedly arranged at the lower end of the second rotating rod 4, the third stirring blades 5, the first stirring blades 1 and the second stirring blades 2 are arranged alternately, the up end symmetry of casing 6 is provided with feed hopper 13, then put into casing 6 with materials such as cement from feed hopper 13 in, start step motor, step motor can drive No. two dwang 4 rotations, No. two dwang 4 can drive driving gear 8 and rotate, No. two dwang 4 still can drive No. two No. three stirring leaves 5 and two No. two stirring leaves 2 rotate, stir the mixture to the material in the casing 6, all be provided with sealed lid 14 on every feed hopper 13, the bottom face fixed mounting of casing 6 has discharging pipe 19.
In the invention, a support plate 15 is pushed according to a position to be poured, a shell 6 is placed above the position to be poured, materials such as cement are placed into the shell 6 from a feeding hopper 13, a stepping motor is started, the stepping motor drives a second rotating rod 4 to rotate, the second rotating rod 4 drives a driving gear 8 to rotate, the second rotating rod 4 also drives two third stirring blades 5 and two second stirring blades 2 to rotate, the materials in the shell 6 are stirred and mixed, the driving gear 8 drives two driven gears 7 to rotate through a toothed belt 9, the driven gear 7 drives a first rotating rod 3 to rotate, and further drives a first stirring blade 1 to rotate, so that the first stirring blade 1 can be matched with the third stirring blade 5 and the second stirring blade 2 to further stir and mix concrete in the shell 6, after the concrete is mixed, a servo motor 20 is started, the servo motor 20 drives the worm to rotate through the output end, the worm can drive the worm wheel to rotate, the threaded rod 16 is further driven to rotate, the threaded rod 16 can drive the threaded block 11 to move up and down, the threaded block 11 drives the shell 6 to move up and down through the connecting rod, the distance between the discharging pipe 19 and a pouring point can be controlled, the pouring tool is flexible and convenient, the height of the pouring tool can be adjusted according to actual conditions, the concrete can be stirred automatically, the practicability is improved, and the cost is reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A self-compacting concrete pouring method is characterized by comprising the following steps:
the method comprises the following steps: firstly, pushing a support plate (15) according to a position to be poured, and parking the shell (6) above the position to be poured;
step two: then, materials such as cement are placed into the shell (6) from the feeding hopper (13), the stepping motor is started, the stepping motor can drive the second rotating rod (4) to rotate, the second rotating rod (4) can drive the driving gear (8) to rotate, the second rotating rod (4) can drive the two third stirring blades (5) and the two second stirring blades (2) to rotate, and the materials in the shell (6) are stirred and mixed;
step three: the driving gear (8) drives the two driven gears (7) to rotate through the toothed belt (9), the driven gears (7) can drive the first rotating rod (3) to rotate, and then the first stirring blade (1) is driven to rotate, so that the first stirring blade (1) can be matched with the third stirring blade (5) and the second stirring blade (2) to further stir and mix concrete in the shell (6);
step four: after the concrete is mixed, the servo motor (20) is started, the servo motor (20) drives the worm to rotate through the output end, the worm can drive the worm wheel to rotate, the threaded rod (16) is further driven to rotate, the threaded rod (16) can drive the threaded block (11) to move up and down, the threaded block (11) drives the shell (6) to move up and down through the connecting rod, and the discharging pipe (19) can be controlled by a person in the year and the distance between pouring points is controlled.
2. The utility model provides a self-compaction concrete placement instrument, includes two backup pads (15) and casing (6), its characterized in that, two the lower extreme of backup pad (15) all rotates and is connected with the pulley, two backup pad (15) symmetry sets up the left and right sides at casing (6), every spacing spout (17) have all been seted up on the lateral wall of backup pad (15).
3. The self-compacting concrete pouring tool according to claim 2, characterized in that sliding rods are fixedly mounted on two sides of the shell (6) respectively, the sliding rods are slidably connected in limiting sliding grooves (17), a threaded block (11) is fixedly mounted on one side of each limiting sliding groove (17) facing away from the shell (6), and a threaded rod (16) is vertically and threadedly connected to the center of each threaded block (11).
4. The self-compacting concrete pouring tool according to claim 3, characterized in that a connecting plate is rotatably connected to the lower end of the threaded rod (16), the connecting plate is fixedly installed on the side wall of the supporting plate (15), a worm wheel (18) is fixedly sleeved on the threaded rod (16), a servo motor (20) is fixedly installed in the side wall of the supporting plate (15), and a worm is fixedly installed at the output end of the servo motor (20).
5. The self-compacting concrete pouring tool according to claim 4, characterized in that the worm gear is meshed with the worm gear (18), two connecting plates (10) are symmetrically and fixedly installed in the housing (6), a first rotating rod (3) is inserted into the center of each connecting plate (10), each first rotating rod (3) is rotatably connected in the connecting plate (10), and a first stirring blade (1) is fixedly installed at the lower end of each first rotating rod (3).
6. The self-compacting concrete pouring tool according to claim 5, characterized in that a driven gear (7) is fixedly mounted at the upper end of each rotating rod (3), a second rotating rod (4) is fixedly mounted at the center of the inner upper side wall of the housing (6), a stepping motor is arranged at the upper end of the second rotating rod (4), the stepping motor is fixedly mounted in the upper side wall of the housing (6), and two third stirring blades (5) are symmetrically arranged on the side wall of the second rotating rod (4).
7. The self-compacting concrete pouring tool according to claim 6, wherein a driving gear (8) is fixedly installed on the side wall of the upper end of the second rotating rod (4), the driving gear (8) is in transmission connection with two driven gears (7) through a toothed belt (9), and two second stirring blades (2) are symmetrically and fixedly installed at the lower end of the second rotating rod (4).
8. The self-compacting concrete pouring tool according to claim 7, characterized in that the third stirring blade (5), the first stirring blade (1) and the second stirring blade (2) are arranged at intervals, the upper end face of the shell (6) is symmetrically provided with feeding funnels (13), each feeding funnel (13) is provided with a sealing cover (14), and the bottom end face of the shell (6) is fixedly provided with a discharging pipe (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011478258.4A CN112622044A (en) | 2020-12-15 | 2020-12-15 | Self-compacting concrete pouring method and pouring tool thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011478258.4A CN112622044A (en) | 2020-12-15 | 2020-12-15 | Self-compacting concrete pouring method and pouring tool thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112622044A true CN112622044A (en) | 2021-04-09 |
Family
ID=75313489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011478258.4A Withdrawn CN112622044A (en) | 2020-12-15 | 2020-12-15 | Self-compacting concrete pouring method and pouring tool thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112622044A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100827557B1 (en) * | 2007-05-16 | 2008-05-07 | 주식회사태림산업 | A concrete load car |
| CN210289171U (en) * | 2018-11-16 | 2020-04-10 | 山东华邦建设集团有限公司 | Novel post-cast strip concrete placement instrument |
| CN210500817U (en) * | 2019-04-26 | 2020-05-12 | 湖北耀源科技有限公司 | Efficient concrete mixer |
| CN210633866U (en) * | 2019-07-04 | 2020-05-29 | 郭金利 | Concrete mixing device for building engineering |
| CN211682757U (en) * | 2019-11-07 | 2020-10-16 | 丽水创智果科技有限公司 | Concrete pouring hopper |
-
2020
- 2020-12-15 CN CN202011478258.4A patent/CN112622044A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100827557B1 (en) * | 2007-05-16 | 2008-05-07 | 주식회사태림산업 | A concrete load car |
| CN210289171U (en) * | 2018-11-16 | 2020-04-10 | 山东华邦建设集团有限公司 | Novel post-cast strip concrete placement instrument |
| CN210500817U (en) * | 2019-04-26 | 2020-05-12 | 湖北耀源科技有限公司 | Efficient concrete mixer |
| CN210633866U (en) * | 2019-07-04 | 2020-05-29 | 郭金利 | Concrete mixing device for building engineering |
| CN211682757U (en) * | 2019-11-07 | 2020-10-16 | 丽水创智果科技有限公司 | Concrete pouring hopper |
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Application publication date: 20210409 |