CN111502284A - Gate grating device for stair concreting and stair concreting method - Google Patents
Gate grating device for stair concreting and stair concreting method Download PDFInfo
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- CN111502284A CN111502284A CN202010469407.4A CN202010469407A CN111502284A CN 111502284 A CN111502284 A CN 111502284A CN 202010469407 A CN202010469407 A CN 202010469407A CN 111502284 A CN111502284 A CN 111502284A
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- rod
- bottom die
- concrete
- stair
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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
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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
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/06—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall
- E04G13/062—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall for stairs or steps
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention relates to a gate grating device for stair concreting and a method for stair concreting, relating to the technical field of concrete concreting. The invention has the advantages that the separation phenomenon can be reduced without separately pouring the conversion platform and the stairs, the operation is very simple, and the working efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of concrete pouring, in particular to a gate grating device for stair concreting and a method for stair concreting.
Background
At present, most of traditional stairs are formed by pouring concrete, when the concrete of the stairs is poured, templates are installed according to the size and the shape of the stairs to be poured at first to form a pouring containing cavity, and then the concrete is conveyed into the pouring containing cavity from the upper part of the templates in a mode of conveying the concrete by a pump. When the stair that needs pour is high a little, because the stair have certain difference in height, so the velocity of flow can increase gradually when making the concrete flow down from the eminence, when the concrete flows to the minimum, the velocity of flow fast falls to zero, will cause stair lower part concrete to pile up, produces very big horizontal tension to the template, causes the template to warp, shift, damage, appears bulging even, explodes the mould condition, takes place serious construction quality accident, produces very big threat to stair concrete placement safety quality.
Chinese utility model patent with grant publication number CN205976492U discloses a stair concrete pouring template device, which mainly comprises a bottom template, two lateral templates and a plurality of transverse baffles. The bottom template is a rectangular thin plate, the back of the bottom template is provided with a plurality of square wood keels, the square wood keels are arranged along the width direction of the bottom template, two adjacent square wood keels are arranged at intervals, and two sides of the bottom template are respectively arranged between the upper floor conversion platform and the lower floor conversion platform. When the stair is used, two ends of a bottom template are respectively overlapped on the floor transfer platforms adjacent to the upper floor and the lower floor, the two lateral templates are respectively nailed at two sides of the bottom template and are also connected with the floor transfer platforms adjacent to the upper floor and the lower floor, a pouring cavity with an opening at the upper part is formed among the bottom template, the two lateral templates and the sections of the two transfer platforms, and the bottom template and the side templates are arranged between the two transfer platforms, so that the height difference of the stair is reduced, and the condition that concrete at the lower part of the stair is accumulated is reduced.
However, when the method is used, the middle conversion platform needs to be poured in advance each time, and the stairs between two adjacent conversion platforms can be poured after the middle conversion platform is solidified, so that the operation is troublesome, and the efficiency is low.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the gate grating device for pouring concrete in the stairs, which can reduce the concrete accumulation phenomenon at the lower part of the stairs without separately pouring a conversion platform and the stairs, is very simple to operate and greatly improves the working efficiency.
The second purpose of the invention is to provide a method for pouring concrete in the stairs, which can directly pour concrete in the stairs, and simultaneously can reduce the concrete accumulation phenomenon at the lower part of the stairs, thereby greatly improving the pouring efficiency.
One of the above objects of the present invention is achieved by the following technical solutions: the utility model provides a gate grid device for stair concreting, is in including installation pole and setting the interception pole of installation pole one side, the interception pole with the installation pole is perpendicular just to be followed installation pole length direction is equidistant to be provided with a plurality ofly.
By adopting the technical scheme, when the stairs to be poured have a certain height, the installation rods can be held by hands to insert the intercepting rods into the pouring cavity, the intercepting rods can block the poured concrete, the flowing speed of the concrete is reduced, a plurality of intercepting rods can be installed at intervals according to the height of the stairs, the flowing speed of the concrete is gradually reduced, the concrete accumulation phenomenon at the lower part of the stairs can be reduced without separately pouring the conversion platform and the stairs, the operation is very simple, and the working efficiency is greatly improved.
The invention in a preferred example may be further arranged to: the side wall of the mounting rod is provided with a handle, and the handle is positioned on one side, far away from the intercepting rod, of the mounting rod.
Through adopting above-mentioned technical scheme, when needs pour the cavity with the interception pole insertion in, the staff can directly hand the handle and carry out installation work, and it is more convenient to operate.
The invention in a preferred example may be further arranged to: the installation pole with realize dismantling the connection through coupling assembling between the interception pole, coupling assembling is including seting up mounting hole and rigid coupling on the installation pole lateral wall are every the stopper of interception pole one end, the interception pole with mounting hole sliding fit, installation pole one side is provided with the locating part, the stopper is located the installation pole with between the locating part.
By adopting the technical scheme, the intercepting rod is directly inserted into the mounting hole during use, and then the limiting block can be fixed between the limiting block and the mounting rod through the limiting block, so that the assembly and disassembly are very convenient.
The invention in a preferred example may be further arranged to: the mounting holes are arranged in a plurality at intervals along the length direction of the mounting rod.
Through adopting above-mentioned technical scheme, the staff can install the interception pole in suitable mounting hole as required, and the operation is more nimble.
The invention in a preferred example may be further arranged to: the mounting rod is provided with a mounting hole, and the mounting hole is communicated with the mounting hole.
Through adopting above-mentioned technical scheme, during the installation, the one end that will intercept the pole and keep away from the stopper inserts the mounting hole from standing groove, then the stopper just can be placed in the standing groove, and a section of thick bamboo passes through the position of locating part fixed stopper in the standing groove for the installation is inseparabler.
The invention in a preferred example may be further arranged to: the cross-section of the installation rod is rectangular, the limiting part comprises a sleeve, the cross-sections of the two ends of the installation rod are two U-shaped clamping plates, the openings of the two clamping plates are opposite, a connecting rod is fixedly connected between the two clamping plates, and the connecting rod is located towards the installation rod on one side of the limiting block.
Through adopting above-mentioned technical scheme, after in installing into the mounting hole with the interception pole, two joint plates of direct operation slide to the installation pole from installation pole one side on, and the connecting rod is located the installation pole towards one side of stopper, just can install the locating part on the installation pole to with the stopper centre gripping between connecting rod and installation pole.
The invention in a preferred example may be further arranged to: the handle is fixedly connected to one side, far away from the clamping plate, of the connecting rod.
Through adopting above-mentioned technical scheme, when installing the locating part on the installation pole, also accomplish the handle installation simultaneously, the installation is succinct more, and the installation of handle after installing the interception pole does not also influence the installation work of interception pole simultaneously.
The invention in a preferred example may be further arranged to: and one side of each clamping plate, which is back to the other side, is in threaded connection with a fixing bolt, and the fixing bolts are in threaded connection with the mounting rods.
Through adopting above-mentioned technical scheme, fixing bolt can further play fixed effect to locating part and installation pole, avoids the locating part to drop from the installation pole under the exogenic action.
The second purpose of the invention is realized by the following technical scheme: s1: erecting a bracket;
s2: fixing a bottom die on the support;
s3: installing side molds on two sides of the bottom mold, and forming a pouring cavity for injecting concrete between the bottom mold and the two side molds;
s4: cleaning sundries in the bottom die and the side die;
s5: an upper reinforcing mesh and a lower reinforcing mesh are fixedly connected between the two side dies, and a gap of 2-4cm is reserved between the lower reinforcing mesh and the bottom die to form a reinforcing bar protective layer.
S6: the side, far away from the bottom die, of each of the two side dies is fixedly connected with a baffle, the baffle is located between the two side dies, one side, far away from the bottom die, of the baffle is flush with one side, far away from the bottom die, of each of the side dies, and the height of each two adjacent baffles is that one side, facing the bottom die, of one baffle located above and one side, far away from the bottom die, of one baffle located below are located on the same horizontal.
S7: sequentially penetrating the intercepting rod through the upper reinforcing mesh and the lower reinforcing mesh, and enabling one end of the intercepting rod, far away from the mounting rod, to be abutted against one side, facing the baffle, of the bottom die;
s8: injecting concrete into the pouring cavity from the upper part of the bottom die through a concrete pump, and injecting the concrete into the pouring cavity from the position between the upper reinforcing mesh and the lower reinforcing mesh;
s9: pulling the intercepting rod out after pouring is finished;
s10: vibrating the concrete poured in the pouring cavity;
s11: and after the concrete is solidified and formed, removing the support, the bottom die, the side die and the baffle to finish the work of pouring the concrete in the stairs.
By adopting the technical scheme, during pouring, the pouring cavity for pouring concrete can be formed through the bottom die, the side die and the baffle, when concrete injected into the pouring cavity through the concrete pump flows downwards along the bottom die, the intercepting rod can play a role in stopping the concrete, the flowing speed of the concrete is reduced, the speed when the concrete finally reaches the lower part of the stair cannot be too high, and the phenomenon that the concrete is accumulated at the lower part of the stair is reduced.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the arrangement of the mounting rods and the intercepting rods can stop the concrete, reduce the flow rate of the concrete, reduce the concrete accumulation phenomenon at the lower part of the stair without separately pouring the conversion platform and the stair, have very simple operation and greatly improve the working efficiency;
2. the mounting rod and the intercepting rod are detachably connected through the connecting component, so that the intercepting rod can be repeatedly used, and the intercepting rod is very convenient to carry after being used;
3. the setting of fixing bolt can make locating part and installation pole be connected more stable.
Drawings
FIG. 1 is a schematic overall structure diagram of a first embodiment of the present invention;
FIG. 2 is a schematic view of the overall structure of a second embodiment of the present invention;
FIG. 3 is an exploded view of a second embodiment of the present invention to illustrate the structure of the connecting assembly;
FIG. 4 is a schematic view showing a mounting structure of each part in the third embodiment;
fig. 5 is a partially enlarged schematic view at a in fig. 4.
In the figure, 1, a rod is installed; 2. a catch bar; 3. a handle; 4. a connecting assembly; 41. mounting holes; 42. a limiting block; 43. a placement groove; 5. a limiting member; 51. a clamping and connecting plate; 52. a connecting rod; 53. fixing the bolt; 61. a support; 62. bottom die; 63. side mould; 64. a steel bar net is arranged; 65. a reinforcing mesh is arranged; 66. and a baffle plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1, the gate grating device for pouring concrete into stairs disclosed by the invention comprises a mounting rod 1, a interception rod 2 vertically and fixedly connected to the side wall of the mounting rod 1, and a handle 3 fixedly connected to the side wall of the mounting rod 1. The intercepting rods 2 are arranged in a plurality of numbers and are arranged at equal intervals along the length direction of the mounting rod 1, and the handle 3 is fixedly connected to one side of the mounting rod 1 far away from the intercepting rods 2. The cross section of the mounting rod 1 may be circular or rectangular, as long as the plurality of intercepting rods 2 can be connected, and the shape of the mounting rod 1 is not limited herein.
The implementation principle of the embodiment is as follows: when the stair is used, a worker directly holds the handle 3 to insert the intercepting rods 2 into the pouring cavity, a plurality of intercepting rods can be installed at intervals according to the height of the stair, the intercepting rods 2 can block concrete, the flow rate of the concrete is reduced, the speed is not too high when the concrete flows to the lower portion of the stair, and the phenomenon of concrete accumulation on the lower portion of the stair is reduced. And because the device simple structure, during the use staff can select the reinforcing bar of suitable size from the reinforcing bar waste material, and the welding preparation now, the preparation is very simple, can realize the reuse of reinforcing bar waste material moreover.
Example two:
referring to fig. 2 and 3, the present embodiment is different from the first embodiment in that: can dismantle the connection through coupling assembling 4 between installation pole 1 and the interception pole 2, coupling assembling 4 is including seting up mounting hole 41 and the stopper 42 of rigid coupling in every interception pole 2 one end on the installation pole 1 lateral wall, and mounting hole 41 is equipped with a plurality ofly along installation pole 1 length direction interval, offers the standing groove 43 that supplies the stopper 42 holding simultaneously on installation pole 1 lateral wall, and standing groove 43 is located mounting hole 41 one end and communicates with every mounting hole 41. When the intercepting bar 2 and the mounting bar 1 need to be assembled, the end of the intercepting bar 2 away from the limiting block 42 is directly inserted into the mounting hole 41 from the placing groove 43 until the limiting block 42 is embedded into the placing groove 43. Wherein the mounting holes 41 are spaced apart from each other, and the worker can mount the intercepting bars 2 into the appropriate mounting holes 41 as needed, thereby adjusting the distance between two adjacent intercepting bars 2. Meanwhile, in order to fix the position of the limiting block 42 in the placing groove 43, a limiting block 5 is arranged at one side of the mounting rod 1, which is provided with the placing groove 43.
Referring to fig. 3, the limiting member 5 includes two clamping plates 51 having U-shaped cross sections and clamped at two ends of the mounting rod 1, and a connecting rod 52 fixedly connected between the two clamping plates 51, the connecting rod 52 is fixedly connected to a side wall of one side of the two clamping plates 51 close to the placing groove 43, and the handle 3 is fixedly connected to a side of the connecting rod 52 away from the clamping plates 51. After the intercepting rod 2 is installed in the installation hole 41 and the limiting block 42 is embedded in the placing groove 43, the two clamping plates 51 are directly slid to the two ends of the installation rod 1 from one side of the installation rod 1, and the connecting rod 52 is located at one side of the installation rod 1, which is provided with the placing groove 43, and at this time, the installation rod 1 is clamped in the containing cavity formed by the two clamping plates 51 and the connecting rod 52.
Meanwhile, in order to prevent the limiting member 5 from slipping off the mounting rod 1 under the action of external force, a fixing bolt 53 is in threaded connection with one back side of the two clamping plates 51, the fixing bolt 53 is in threaded connection with the mounting rod 1, and the limiting member 5 and the mounting rod 1 can be fixed more firmly through the fixing bolt 53.
The implementation principle of the embodiment is as follows: when the clamping device is used, one end, far away from the limiting block 42, of the intercepting rod 2 is directly inserted into the mounting hole 41 from one side, provided with the placing groove 43, of the mounting rod 1, finally the limiting block 42 is placed in the placing groove 43, then the limiting block 5 is operated, the two clamping plates 51 are enabled to slide to two ends of the mounting rod 1 from one side of the mounting rod 1, and then the clamping plates 51 and the mounting rod 1 are connected together through the fixing bolts 53. The operator can directly operate the handle 3 to insert the interception bar 2 into the casting cavity. The detachable connection of the installation rod 1 and the interception rod 2 enables the gate grating to be repeatedly used and directly detached when not used, and the transportation is very convenient.
Example three:
referring to fig. 4 and 5, the method for pouring concrete for the stairs disclosed by the invention comprises the following steps:
s1: erecting a bracket 61 according to the size and shape of the stair to be poured;
s2: fixing a bottom die 62 on the bracket 61;
s3: fixedly connecting side dies 63 on two sides of the bottom die 62, wherein the side dies 63 are positioned on one side of the bottom die 62 away from the bracket 61, and a pouring cavity for injecting concrete is formed between the bottom die 62 and the two side dies 63;
s4: sundries in the bottom die 62 and the side die 63 are cleaned, and the tidiness of the working surface is guaranteed;
s5: two layers of reinforcing mesh are fixedly connected between the two side dies 63, namely an upper reinforcing mesh 64 and a lower reinforcing mesh 65, and a 2-4cm gap is reserved between the lower reinforcing mesh 65 and the bottom die 62 to form a reinforcing protective layer.
S6: baffle plates 66 are fixedly connected between the two side dies 63, one side of each baffle plate 66 far away from the bottom die 62 is flush with one side of each side die 63 far away from the bottom die 62, and one side, facing the bottom die 62, of the upper baffle plate 66 and one side, far away from the bottom die 62, of the lower baffle plate 66 in the two adjacent baffle plates 66 are on the same horizontal plane.
S7: the intercepting rod 2 sequentially penetrates through the upper reinforcing mesh 64 and the lower reinforcing mesh 65 by the handheld handle 3, one end, far away from the mounting rod 1, of the intercepting rod 2 is abutted against one side, facing the baffle 66, of the bottom die 62, and a plurality of intercepting rods 2 can be inserted at intervals along the length direction of the stair according to the length of the stair;
s8: concrete is injected into the casting cavity from the upper part of the bottom die 62 by a concrete pump, and the concrete is injected into the casting cavity from between the upper reinforcing mesh 64 and the lower reinforcing mesh 65;
s9: after pouring is finished, the intercepting rod 2 is pulled out by holding the handle 3;
s10: vibrating the concrete poured in the pouring cavity;
s11: after the concrete is set and formed, the support 61, the bottom mold 62, the side mold 63 and the retainer 66 are removed.
It can be understood that when the intercepting bars 2 are pulled out, the intercepting bars 2 at corresponding positions can be pulled out according to the casting speed, and when the casting of the casting cavity below one intercepting bar 2 is completed, the corresponding intercepting bar 2 can be pulled out. Of course, when the stairs to be poured are wide, the workers can also insert the plurality of interception bars 2 in parallel, so that the plurality of interception bars 2 can block the concrete.
Preferably, the intercepting bar 2 is inserted at the intersection of the inclination of the bottom die 62 and the plane of the transfer platform.
The implementation principle of the invention is that the concrete delivered into the pouring chamber by the pump flows downwards along the bottom die 62, when the concrete flows to the interception rod 2, the cross-sectional area for the concrete to flow is reduced due to the interception of the interception rod 2, so the flow velocity of the concrete is reduced, and when the concrete flows out from the interception rod 2, the flow velocity cannot be greatly increased due to the arrival at the horizontal conversion platform, so the effect of reducing the flow velocity of the concrete is achieved. Through multiple times of blocking of the blocking rod 2, the final concrete reaches the lower part of the stair at a relatively uniform speed, and the phenomenon of concrete accumulation is reduced.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. The utility model provides a stair are gate grid device for concreting which characterized in that: the installation rod comprises an installation rod (1) and intercepting rods (2) arranged on one side of the installation rod (1), wherein the intercepting rods (2) are perpendicular to the installation rod (1) and are arranged in a plurality at equal intervals along the length direction of the installation rod (1).
2. The gate grid assembly for stair cast concrete according to claim 1, wherein: the side wall of the mounting rod (1) is provided with a handle (3), and the handle (3) is positioned on one side, far away from the intercepting rod (2), of the mounting rod (1).
3. The gate grid assembly for stair cast concrete according to claim 2, wherein: installation pole (1) with realize dismantling the connection through coupling assembling (4) between interception pole (2), coupling assembling (4) are including seting up mounting hole (41) and rigid coupling on installation pole (1) lateral wall are at every stopper (42) of interception pole (2) one end, interception pole (2) with mounting hole (41) sliding fit, installation pole (1) one side is provided with locating part (5), stopper (42) are located installation pole (1) with between locating part (5).
4. The gate grid assembly for stair cast concrete according to claim 3, wherein: the mounting holes (41) are formed in the length direction of the mounting rod (1) at intervals.
5. The gate grid assembly for stair cast concrete according to claim 3, wherein: a placing groove (43) for accommodating the limiting block (42) is formed in one side of the mounting rod (1), and the placing groove (43) is communicated with one end of the mounting hole (41).
6. The gate grid assembly for stair cast concrete according to claim 3, wherein: the cross-section of the installation rod (1) is a rectangle, the locating part (5) is established including the cover two joint plates (51) that the cross-section at installation rod (1) both ends is the U-shaped, two joint plate (51) opening is relative, and the rigid coupling has connecting rod (52) between two joint plates (51), connecting rod (52) are located installation rod (1) orientation one side of stopper (42).
7. The gate grid assembly for stair cast concrete according to claim 6, wherein: the handle (3) is fixedly connected to one side, away from the clamping plate (51), of the connecting rod (52).
8. The gate grid assembly for stair cast concrete according to claim 6, wherein: two one side threaded connection that joint board (51) carried on the back has fixing bolt (53), fixing bolt (53) with installation pole (1) threaded connection.
9. A method of implementing stair cast concrete using the gate grid assembly for stair cast concrete according to any one of claims 1 to 8, comprising the steps of:
s1: setting up a bracket (61);
s2: fixing a bottom die (62) on the bracket (61);
s3: side dies (63) are installed on two sides of the bottom die (62), and a pouring cavity for pouring concrete is formed between the bottom die (62) and the two side dies (63);
s4: cleaning sundries between the bottom die (62) and the side die (63);
s5: an upper reinforcing mesh (64) and a lower reinforcing mesh (65) are fixedly connected between the two side molds (63), and a gap of 2-4cm is reserved between the lower reinforcing mesh (65) and the bottom mold (62) to form a reinforcing bar protective layer;
s6: a baffle plate (66) is fixedly connected to one side of each of the two side dies (63) far away from the bottom die (62), the baffle plate (66) is positioned between the two side dies (63) and one side of each of the two side dies far away from the bottom die (62) is flush with one side of each of the side dies (63) far away from the bottom die (62), and one side of one baffle plate (66) positioned above in the two adjacent baffle plates (66) facing the bottom die (62) and one side of one baffle plate (66) positioned below far away from the bottom die (62) are on the same horizontal plane;
s7: sequentially penetrating the interception rod (2) through the upper reinforcing mesh (64) and the lower reinforcing mesh (65) and enabling one end of the interception rod (2) far away from the mounting rod (1) to be abutted against one side, facing the baffle (66), of the bottom die (62);
s8: injecting concrete into the pouring cavity from the upper part of the bottom die (62) through a concrete pump, and injecting the concrete into the pouring cavity from the position between the upper reinforcing mesh (64) and the lower reinforcing mesh (65);
s9: after pouring is finished, the intercepting rod (2) is pulled out;
s10: vibrating the concrete poured in the pouring cavity;
s11: after the concrete is solidified and formed, the support (61), the bottom die (62), the side die (63) and the baffle (66) are removed, and the work of pouring the concrete in the stairs is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010469407.4A CN111502284A (en) | 2020-05-28 | 2020-05-28 | Gate grating device for stair concreting and stair concreting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010469407.4A CN111502284A (en) | 2020-05-28 | 2020-05-28 | Gate grating device for stair concreting and stair concreting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111502284A true CN111502284A (en) | 2020-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010469407.4A Pending CN111502284A (en) | 2020-05-28 | 2020-05-28 | Gate grating device for stair concreting and stair concreting method |
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| CN (1) | CN111502284A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112427A (en) * | 2020-10-09 | 2020-12-22 | 福州经济技术开发区星络网电子科技有限公司 | Cement pouring equipment for stairs |
-
2020
- 2020-05-28 CN CN202010469407.4A patent/CN111502284A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112427A (en) * | 2020-10-09 | 2020-12-22 | 福州经济技术开发区星络网电子科技有限公司 | Cement pouring equipment for stairs |
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