CN112356233A - Prefabricated cast-in-place concrete floor - Google Patents
Prefabricated cast-in-place concrete floor Download PDFInfo
- Publication number
- CN112356233A CN112356233A CN202011174321.5A CN202011174321A CN112356233A CN 112356233 A CN112356233 A CN 112356233A CN 202011174321 A CN202011174321 A CN 202011174321A CN 112356233 A CN112356233 A CN 112356233A
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- China
- Prior art keywords
- template
- concrete
- rod
- wall
- fixed
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/22—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units
Abstract
The invention relates to the technical field of precast floor slabs, in particular to a precast cast-in-place concrete floor slab, which comprises templates, wherein the two templates are symmetrically clamped, expansion mechanisms are arranged on the surfaces of the two templates, an extrusion plate can move in an expansion tank through the arranged expansion tank, and the size of the space in the template is increased by moving the extrusion plate, when the extrusion plate is subjected to the pressure generated when the concrete expands, the extrusion plate drives the fixed rod to move, the fixed rod pushes the pressure rod to rotate, the pressure rod drives the threaded rod to be close to the press plate, the threaded rod drives the rotating rod to be close to the press plate, the rotating rod presses the pressing plate to move downwards, the pressing block compacts the concrete in the template, and the hydration heat in the extruded concrete is quickly discharged from the ventilation groove, when the hydration heat is discharged and the concrete shrinks, the spring pushes the extrusion plate to extrude the concrete to shrink and change the concrete to a desirable shape, and then the quality of the concrete casting is prevented from being influenced.
Description
Technical Field
The invention relates to the technical field of prefabricated floor slabs, in particular to a prefabricated cast-in-place concrete floor slab.
Background
The precast slabs are modules or plates required by engineering, and are concrete precast members produced, processed and molded in a precast yard and directly transported to a construction site for installation, so that the precast slabs are called as precast slabs, when the precast slabs are manufactured, a hollow model is nailed by wood plates, reinforcing steel bars are distributed at the hollow part of the model, the hollow part is filled with cement, the wood plates are knocked off after the hollow part is dried, the residual precast slabs are prefabricated slabs, and the precast slabs have a great use in construction, such as cement slabs covered on ditches beside highways; the cement boards used as heat insulation layers on the roof are prefabricated boards.
The existing precast floor slab is manufactured, the cast concrete is fixed through the template, deformation is caused when the concrete is prevented from solidifying, but cement can generate a large amount of hydration heat when the concrete is solidified, the hydration heat generated in the concrete member can possibly cause a building to crack once the hydration heat can not be dissipated, the concrete can shrink after the dissipation of the hydration heat is completed, the existing template inner space is fixed, the size of the concrete can not be adapted to when constant concrete expands and shrinks, and the quality of the concrete member can be influenced.
Disclosure of Invention
The invention provides a prefabricated cast-in-place concrete floor, which aims to solve the problems that when a prefabricated floor in the prior art is manufactured, cast concrete is fixed through a template, and deformation of the concrete during solidification is prevented, but cement can generate a large amount of hydration heat during solidification of the concrete, once the hydration heat generated in a concrete member cannot be dissipated, a building can be cracked possibly, the concrete can be contracted after the dissipation of the hydration heat is finished, the inner space of the existing template is fixed, and the constant concrete cannot adapt to the size of the concrete during expansion and contraction, so that the quality of the concrete member is influenced.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a prefabricated cast-in-place concrete floor, includes the template, two template symmetry joint, two the template all be provided with expansion machanism, two on the surface expansion machanism's inside all is provided with link gear, two the upper end of template is provided with pressing means, pressing means is connected with link gear, two through adjustment mechanism be provided with fixed establishment on the outer wall of template.
Specifically, the expansion mechanism comprises an expansion tank, the expansion tank is fixedly sleeved on the side wall of the template, an extrusion plate is sleeved on the inner activity of the expansion tank, a ventilation groove is formed in the surface of the extrusion plate, a fixed rod is fixedly connected to the side wall of one side, far away from the template, of the extrusion plate, a spring is movably sleeved on the surface of the fixed rod, one end of the spring is fixedly connected to the inner wall of the expansion tank, the other end of the spring is fixedly connected to the side wall of the extrusion plate, one end, far away from the extrusion plate, of the fixed rod is connected to the inside of a sleeve in an inserting mode, the sleeve is fixedly sleeved on the outer wall of the expansion tank, and two rotation grooves which are symmetrically arranged are formed in the surface of one end.
Specifically, the linkage mechanism comprises a pressing rod, the lower end of the pressing rod is clamped inside the rotary groove, a first rotating shaft is rotatably connected to the center of the pressing rod, the first rotating shaft is rotatably connected to the surface of the fixing plate, the fixing plate is fixedly connected to the outer wall of the expansion tank, an inserting barrel is fixedly connected to the upper end of the pressing rod, and an inserting rod is inserted into the inserting barrel in an inserting mode.
Specifically, the pressing mechanism includes the briquetting, the briquetting joint is at the upper end opening part of two templates, fixedly connected with presses the platen on the upper surface of briquetting, two spouts have been seted up to the symmetry on the upper surface of pressing the platen, two the equal sliding connection in inside of spout has a slide, two the sliding tray has all been seted up on the inner wall of spout, two the equal sliding connection in inside of sliding tray has the sliding block, sliding block fixed connection is on the surface of slide, the slide rotate on the surface and be connected with the second pivot, the second pivot rotate on the surface and be connected with the bull stick.
Specifically, adjustment mechanism includes the thread groove, the thread groove is seted up in the bull stick and is kept away from the one end of slide, the inside threaded connection of thread groove has the threaded rod, the other end and the inserted bar fixed connection of threaded rod, the fixed connection ring on the surface of inserted bar, the flank of screw has been seted up on the inner wall of ring, the inside threaded connection of flank of screw has the bolt, the other end of bolt is pegged graft inside fixed cylinder, fixed cylinder fixed connection is on the surface of bull stick.
Specifically, fixed establishment includes the cover frame, the cover frame activity cup joints on the upper end outer wall of two templates, the inclined plane has all been seted up to the lower extreme inner wall both sides of cover frame, equal fixedly connected with bracing piece on the both ends upper surface of cover frame, two the arc groove has all been seted up on the upper surface of bracing piece, two equal fixedly connected with down tube, two on the lower surface of template the equal fixedly connected with rotary drum of the other end of down tube, two the inside of rotary drum all rotates and is connected with the fixed axle, equal fixedly connected with triangle block on the upper end outer wall of template.
Specifically, the sleeve frame is in close contact with the outer walls of the two templates.
Specifically, the lower surface of the rotating rod is clamped inside the arc groove.
The invention has the beneficial effects that:
(1) according to the prefabricated cast-in-place concrete floor, the extrusion plate can move in the expansion box through the arranged expansion box, the size of the space in the formwork is increased through moving the extrusion plate, when the extrusion plate is subjected to pressure generated when concrete expands, the extrusion plate drives the fixed rod to move, the fixed rod pushes the compression rod to rotate, the compression rod drives the threaded rod to be close to the pressing plate, the threaded rod drives the rotating rod to be close to the pressing plate, the rotating rod further pushes the pressing plate to move downwards, the pressing block compacts the concrete in the formwork, hydration heat in the extruded concrete is rapidly discharged from the air-permeable groove, when the hydration heat is discharged and the concrete shrinks, the spring pushes the extrusion plate to extrude the concrete to shrink and return to a desired shape, and the quality of the concrete casting is prevented from being influenced.
(2) According to the prefabricated cast-in-place concrete floor, the arranged sleeve frame is sleeved on the two templates, the rotating rod is rotated to move downwards to enable the rotating rod to be clamped in the arc groove, the supporting rod is rotated downwards by pressing the rotating rod and further pressing the arc groove, the sleeve frame is driven to be tightly sleeved on the two templates when the supporting rod moves downwards, the sleeve frame is further used for fixing the upper ends of the two templates, meanwhile, the lower ends of the two templates are mutually and rotatably connected through the two inclined rods which are arranged in a staggered mode, when the rotating rod is pressed downwards, the sleeve frame is pressed to drive the inclined surfaces to extrude the triangular blocks, the two templates are further connected tightly, the templates are further fixed stably, and concrete is prevented from flowing out from gaps between the templates.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of a prefabricated cast-in-place concrete floor provided by the present invention;
FIG. 2 is a schematic side view of a precast cast-in-place concrete floor provided by the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 1 of a prefabricated cast-in-place concrete floor according to the present invention;
FIG. 4 is an enlarged view of a portion B of FIG. 1 of a prefabricated cast-in-place concrete floor according to the present invention;
FIG. 5 is a C-C sectional view of a prefabricated cast-in-place concrete floor provided by the present invention;
FIG. 6 is a schematic view of a frame structure of a precast cast-in-place concrete floor provided by the present invention;
fig. 7 is a schematic diagram of a structure of a prefabricated cast-in-place concrete floor slab according to the present invention.
In the figure: 1. a template; 2. an expansion mechanism; 21. an expansion tank; 22. a pressing plate; 23. a ventilation groove; 24. fixing the rod; 25. a spring; 26. a sleeve; 27. rotating the groove; 3. a linkage mechanism; 31. a pressure lever; 32. a first rotating shaft; 33. a fixing plate; 34. inserting a cylinder; 35. inserting a rod; 4. a pressing mechanism; 41. briquetting; 42. a pressing plate; 43. a chute; 44. a slide plate; 45. a sliding groove; 46. a slider; 47. a second rotating shaft; 48. a rotating rod; 5. an adjustment mechanism; 51. a thread groove; 52. a threaded rod; 53. a circular ring; 54. a thread face; 55. a bolt; 56. a fixed cylinder; 6. a fixing mechanism; 61. sleeving a frame; 62. a bevel; 63. a support bar; 64. an arc groove; 65. a diagonal bar; 66. a fixed cylinder; 67. a fixed shaft; 68. and (5) a triangular block.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-7, the precast cast-in-place concrete floor slab of the invention comprises formworks 1, two formworks 1 are symmetrically clamped, expansion mechanisms 2 are arranged on the surfaces of the two formworks 1, linkage mechanisms 3 are arranged inside the two expansion mechanisms 2, pressing mechanisms 4 are arranged at the upper ends of the two formworks 1, the pressing mechanisms 4 are connected with the linkage mechanisms 3 through adjusting mechanisms 5, and fixing mechanisms 6 are arranged on the outer walls of the two formworks 1.
Specifically, the expansion mechanism 2 comprises an expansion tank 21, the expansion tank 21 is fixedly sleeved on the side wall of the template 1, an extrusion plate 22 is sleeved on the inner activity of the expansion tank 21, a ventilation groove 23 is formed in the surface of the extrusion plate 22, a fixed rod 24 is fixedly connected to the side wall of the extrusion plate 22 far away from the template 1, a spring 25 is movably sleeved on the surface of the fixed rod 24, one end of the spring 25 is fixedly connected to the inner wall of the expansion tank 21, the other end of the spring 25 is fixedly connected to the side wall of the extrusion plate 22, one end of the fixed rod 24 far away from the extrusion plate 22 is inserted into a sleeve 26, the sleeve 26 is fixedly sleeved on the outer wall of the expansion tank 21, two symmetrically-arranged rotary grooves 27 are formed in the surface of one end of the sleeve 26 located outside the expansion tank 21, the extrusion plate 22 can move inside the expansion tank 21 through the expansion tank 21, and further the space in the template 1 can be, when the pressing plate 22 is subjected to the pressure generated by the concrete expansion, the pressing plate 22 drives the fixing rod 24 to move, and the fixing rod 24 pushes the pressing rod 31 to rotate.
Specifically, link gear 3 includes depression bar 31, and the lower extreme joint of depression bar 31 is inside changeing groove 27, and the center department of depression bar 31 rotates and is connected with first pivot 32, and first pivot 32 rotates to be connected on the surface of fixed plate 33, and fixed plate 33 fixed connection is on the outer wall of expansion tank 21, and the upper end fixedly connected with of depression bar 31 inserts a section of thick bamboo 34, and the inside of inserting a section of thick bamboo 34 is pegged graft and is had inserted bar 35, and depression bar 31 drives when rotating and inserts a section of thick bamboo 34 and be close to pressing plate 42, and insert a section of thick bamboo 34 and drive inserted bar 35 and be.
Specifically, pressing mechanism 4 includes briquetting 41, briquetting 41 joint is at the upper end opening part of two template 1, fixedly connected with press plate 42 on the upper surface of briquetting 41, two spouts 43 have been seted up to the symmetry on press plate 42's the upper surface, the equal sliding connection in inside of two spouts 43 has slide 44, sliding tray 45 has all been seted up on the inner wall of two spouts 43, the equal sliding connection in inside of two sliding tray 45 has slide 46, slide 46 fixed connection is on slide 44's the surface, slide 44 rotates on the surface and is connected with second pivot 47, the rotation is connected with bull stick 48 on the surface of second pivot 47, inserted bar 35 drives threaded rod 52 and is close to press plate 42, threaded rod 52 drives bull stick 48 and is close to press plate 42, and then make bull stick 48 press plate 42 and move down, the inside concrete compaction of 1 with template of briquetting 41 of messenger.
Specifically, adjustment mechanism 5 includes thread groove 51, thread groove 51 sets up the one end of keeping away from slide 44 at bull stick 48, the internal thread of thread groove 51 is connected with threaded rod 52, the other end and inserted bar 35 fixed connection of threaded rod 52, inserted bar 35's fixedly connected with ring 53 on the surface, flank 54 has been seted up on ring 53's the inner wall, the internal thread of flank 54 is connected with bolt 55, the other end of bolt 55 is pegged graft inside solid fixed cylinder 56, gu fixed cylinder 56 fixed connection is on bull stick 48's surface, can drive threaded rod 52 extrusion thread groove 51 through rotating threaded rod 52, and then threaded rod 52 that make shifts out from the inside thread groove, and then adjust the interval between inserted bar and the bull stick, and then the depression bar 31 pivoted angle that makes is to pressing the pressure board 42.
Specifically, fixed establishment 6 includes cover frame 61, cover frame 61 activity cup joints on the upper end outer wall of two templates 1, inclined plane 62 has all been seted up to cover frame 61's lower extreme inner wall both sides, equal fixedly connected with bracing piece 63 on cover frame 61's the both ends upper surface, arc groove 64 has all been seted up on the upper surface of two bracing pieces 63, equal fixedly connected with down tube 65 on two templates 1's the lower surface, the equal fixedly connected with rotary drum 66 of the other end of two down tube 65, the inside of two rotary drums 66 all rotates and is connected with fixed axle 67, equal fixedly connected with triangle block 68 on template 1's the upper end outer wall, it drives two templates 1 and docks each other to rotate two down tubes 65, then cup joint cover frame 61 on two templates 1's upper end outer wall.
Specifically, the frame 61 is in close contact with the outer walls of the two formworks 1.
Specifically, the lower surface of the rotating rod 48 is engaged with the inside of the arc groove 64.
When the concrete expansion device is used, firstly, the two inclined rods 65 are rotated to drive the two templates 1 to be mutually butted, then the sleeve frame 61 is sleeved on the outer walls of the upper ends of the two templates 1, the extrusion plate 22 can move in the expansion tank 21 through the expansion tank 21, further, the space in the templates 1 can be increased by moving the extrusion plate 22, when the extrusion plate 22 is subjected to pressure generated during concrete expansion, the extrusion plate 22 drives the fixed rod 24 to move, the fixed rod 24 pushes the pressing rod 31 to rotate, the pressing rod 31 drives the inserting cylinder 34 to be close to the pressing plate 42 when rotating, the inserting cylinder 34 drives the inserting rod 35 to be close to the pressing plate 42, the inserting rod 35 drives the threaded rod 52 to be close to the pressing plate 42, the threaded rod 52 drives the rotating rod 48 to be close to the pressing plate 42, further, the rotating rod 48 presses the pressing plate 42 to move downwards, so that the pressing block 41 compacts concrete in the templates 1, and simultaneously, the heat in the extruded, when the concrete shrinks after the hydration heat discharges the concrete, the spring 25 pushes the extrusion plate 22 to extrude the concrete to shrink and change the concrete into a desirable shape, thereby preventing the quality of the concrete casting from being affected, meanwhile, when the rotating rod 48 moves downwards, the rotating rod 48 can be clamped in the arc groove 64, the arc groove 64 is further pressed by pressing the rotating rod 48, the arc groove 64 drives the supporting rod 63 to move downwards, the supporting rod 63 drives the sleeve frame 61 to be tightly sleeved on the two formworks 1 when moving downwards, further, the sleeve frame 61 is used for fixing the upper ends of the two formworks 1, simultaneously, the lower ends of the two formworks 1 are mutually rotatably connected through the two inclined rods 65 which are arranged in a staggered mode, when the rotating rod 48 is pressed downwards, the sleeve frame 61 is pressed to drive the inclined plane 62 to extrude the triangular block 68, further, the two formworks 1 are connected more tightly, further, the formworks 1 are stably fixed, and the concrete is prevented from flowing out from gaps between.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a prefabricated cast in situ concrete floor which characterized in that: including template (1), two template (1) symmetry joint, two the template (1) all be provided with expansion machanism (2), two on the surface the inside of expansion machanism (2) all is provided with link gear (3), two the upper end of template (1) is provided with pressing means (4), pressing means (4) are connected with link gear (3) through adjustment mechanism (5), two be provided with fixed establishment (6) on the outer wall of template (1).
2. A precast cast in place concrete floor slab as recited in claim 1, characterized in that: the expansion mechanism (2) comprises an expansion tank (21), the expansion tank (21) is fixedly sleeved on the side wall of the template (1), a squeezing plate (22) is movably sleeved in the expansion tank (21), a ventilation groove (23) is formed in the surface of the squeezing plate (22), a fixing rod (24) is fixedly connected on the side wall of one side of the extrusion plate (22) far away from the template (1), a spring (25) is movably sleeved on the surface of the fixed rod (24), one end of the spring (25) is fixedly connected on the inner wall of the expansion tank (21), the other end of the spring (25) is fixedly connected on the side wall of the extrusion plate (22), one end of the fixed rod (24) far away from the extrusion plate (22) is inserted in the sleeve (26), the sleeve (26) is fixedly sleeved on the outer wall of the expansion tank (21), and two symmetrically-arranged rotary grooves (27) are formed in the surface of one end, located outside the expansion tank (21), of the sleeve (26).
3. A precast cast in place concrete floor slab as recited in claim 1, characterized in that: link gear (3) are including depression bar (31), the lower extreme joint of depression bar (31) is inside turn trough (27), the center department of depression bar (31) rotates and is connected with first pivot (32), first pivot (32) rotate to be connected on the surface of fixed plate (33), fixed plate (33) fixed connection is on the outer wall of expansion tank (21), the upper end fixedly connected with of depression bar (31) inserts a section of thick bamboo (34), the inside grafting of inserting a section of thick bamboo (34) has inserted bar (35).
4. A precast cast in place concrete floor slab as recited in claim 1, characterized in that: pressing means (4) include briquetting (41), briquetting (41) joint is at the upper end opening part of two template (1), fixedly connected with presses down on the upper surface of briquetting (41) board (42), two spout (43) have been seted up to the symmetry on the upper surface of pressing down board (42), two the equal sliding connection in inside of spout (43) has slide (44), two sliding tray (45) have all been seted up on the inner wall of spout (43), two the equal sliding connection in inside of sliding tray (45) has sliding block (46), sliding block (46) fixed connection is on the surface of slide (44), the rotation is connected with second pivot (47) on the surface of slide (44), the rotation is connected with bull stick (48) on the surface of second pivot (47).
5. A precast cast in place concrete floor slab as recited in claim 1, characterized in that: adjustment mechanism (5) are including thread groove (51), the one end of keeping away from slide (44) is seted up in bull stick (48) in thread groove (51), the internal thread of thread groove (51) is connected with threaded rod (52), the other end and inserted bar (35) fixed connection of threaded rod (52), the fixed connection has ring (53) on the surface of inserted bar (35), flank of thread (54) have been seted up on the inner wall of ring (53), the internal thread of flank of thread (54) is connected with bolt (55), the other end of bolt (55) is pegged graft inside solid fixed cylinder (56), gu fixed cylinder (56) fixed connection is on the surface of bull stick (48).
6. A precast cast in place concrete floor slab as recited in claim 1, characterized in that: fixed establishment (6) are including cover frame (61), cover frame (61) activity cup joints on the upper end outer wall of two templates (1), inclined plane (62) have all been seted up to the lower extreme inner wall both sides of cover frame (61), equal fixedly connected with bracing piece (63) on the both ends upper surface of cover frame (61), two arc groove (64), two have all been seted up on the upper surface of bracing piece (63) equal fixedly connected with down tube (65) on the lower surface of template (1), two the equal fixedly connected with rotary drum (66) of the other end of down tube (65), two the inside of rotary drum (66) all rotates and is connected with fixed axle (67), equal fixedly connected with triangle block (68) on the upper end outer wall of template (1).
7. A precast cast in place concrete floor slab as recited in claim 6, characterized in that: the sleeve frame (61) is tightly contacted with the outer walls of the two templates (1).
8. A precast cast in place concrete floor slab according to claim 4, characterized in that: the lower surface of the rotating rod (48) is clamped in the arc groove (64).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011174321.5A CN112356233A (en) | 2020-10-28 | 2020-10-28 | Prefabricated cast-in-place concrete floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011174321.5A CN112356233A (en) | 2020-10-28 | 2020-10-28 | Prefabricated cast-in-place concrete floor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112356233A true CN112356233A (en) | 2021-02-12 |
Family
ID=74511293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011174321.5A Withdrawn CN112356233A (en) | 2020-10-28 | 2020-10-28 | Prefabricated cast-in-place concrete floor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112356233A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718242A (en) * | 2022-03-10 | 2022-07-08 | 江苏启皓新材料有限公司 | Cast-in-place lightweight concrete wallboard |
| CN116717071A (en) * | 2023-08-03 | 2023-09-08 | 山西一建集团有限公司 | Tool type aluminum alloy template assembly |
-
2020
- 2020-10-28 CN CN202011174321.5A patent/CN112356233A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718242A (en) * | 2022-03-10 | 2022-07-08 | 江苏启皓新材料有限公司 | Cast-in-place lightweight concrete wallboard |
| CN114718242B (en) * | 2022-03-10 | 2023-08-18 | 江苏启皓新材料有限公司 | Cast-in-situ lightweight concrete wallboard |
| CN116717071A (en) * | 2023-08-03 | 2023-09-08 | 山西一建集团有限公司 | Tool type aluminum alloy template assembly |
| CN116717071B (en) * | 2023-08-03 | 2023-10-10 | 山西一建集团有限公司 | Tool type aluminum alloy template assembly |
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Application publication date: 20210212 |
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