CN217573362U - A mould and prefabricated heavy stair that subtract for making prefabricated heavy stair that subtracts - Google Patents
A mould and prefabricated heavy stair that subtract for making prefabricated heavy stair that subtracts Download PDFInfo
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- CN217573362U CN217573362U CN202221351281.1U CN202221351281U CN217573362U CN 217573362 U CN217573362 U CN 217573362U CN 202221351281 U CN202221351281 U CN 202221351281U CN 217573362 U CN217573362 U CN 217573362U
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Abstract
The utility model discloses a mould and prefabricated heavy stair that subtract for making prefabricated heavy stair that subtract, including bottom plate, front shroud, back shroud, two side shields and gasbag, bottom plate, front shroud and two side shields surround and form the cavity of pouring prefabricated heavy stair that subtracts, the gasbag passes through-hole on the side shield inserts in the cavity, the outside gassing device that fills of gasbag connection. The utility model discloses a set up the gasbag device in the mould, make the prefabrication subtract heavy stair in produce the cavity, and through the volume of inflating and deflating device control gasbag, thereby the size of the inside cavity of control subtract heavy stair, thereby can adjust the weight that subtracts heavy stair according to actual demand, ensure tower crane cantilever safety work, the prefabrication in the mould subtracts and can also take out after the gasbag gassing after heavy stair solidifies, realize the reuse of gasbag, positioning accuracy has been ensured through the gasbag simultaneously, the damaged condition of tread has been avoided.
Description
Technical Field
The utility model relates to the technical field of mold, especially, relate to a mould and prefabricated heavy stair that subtracts for making prefabricated heavy stair that subtracts.
Background
Among the prior art, because prefabricated staircase is bulky, weight is heavy, especially at this type prefabricated staircase in tower crane hoist and mount in-process, the weight direct influence of its load is to tower crane cantilever construction safety, for making things convenient for commodity circulation and installation, need carry out the lightweight to prefabricated staircase, and the marking time of prefabricated staircase is non-load-carrying members, has the space of weight optimization, consequently marks time the structure and need optimize at prefabricated staircase in-process and subtract heavy. Among the prior art, the structure of marking time subtracts the heavy mode and is managed to find time the position and carry out the concrete and manage to find time, then adopts the PVC pipe to fill this space to realize the lightweight, nevertheless among the above-mentioned operation process, the installation space of PVC pipe is little, and the location is not accurate, leads to appearing the tread damage, appearing the honeycomb scheduling problem.
SUMMERY OF THE UTILITY MODEL
The utility model provides a mould and prefabricated heavy stair that subtract for making prefabricated heavy stair subtract for solve the technical problem that present mould exists when making prefabricated stair.
In order to realize the above-mentioned purpose, the utility model provides a mould for making prefabricated heavy stair that subtracts, including bottom plate, front shroud, back shroud, two side shields and gasbag, bottom plate, front shroud and two side shields surround and form the cavity of pouring the prefabricated heavy stair that subtracts, the gasbag passes through-hole on the side shield inserts in the cavity, the outside gassing device that fills of air bag connection.
Preferably, a stair bottom die is arranged on the bottom plate and used for enabling concrete to form a step surface of the prefabricated weight-reducing stair.
Preferably, the stair bottom die comprises a plurality of right-angle protrusions which are connected in sequence, and each right-angle protrusion forms a step.
Preferably, the front cover plate comprises a lower stop block, a hinge and a front baffle plate, the lower stop block is vertically arranged at one end of the bottom mold of the stair, and the front baffle plate is connected with the lower stop block through the hinge.
Preferably, an air bag is arranged at the joint of each right-angle protrusion.
Preferably, the automobile seat cover further comprises an upper cover plate, and the upper cover plate is mounted on the front cover plate, the rear cover plate and the two side cover plates.
The utility model also provides a prefabricated heavy stair that subtracts, prefabricated heavy stair subtracts the mould that is used for the preparation prefabricated heavy stair to make through the aforesaid.
The utility model discloses following beneficial effect has: the utility model discloses a mould and prefabricated heavy stair that subtracts for making prefabricated heavy stair that subtracts, through set up the gasbag device in the mould, make the prefabricated cavity that produces in subtracting heavy stair, and through the volume of inflating and deflating device control gasbag, thereby the size of the inside cavity of control subtract heavy stair, because the inside cavity size of stair structure of marking time is adjustable, thereby can adjust the weight that subtracts heavy stair according to actual demand, ensure tower crane cantilever safety work, prefabricated subtract heavy stair in the mould can also take out after solidifying the gasbag gassing, realize the reuse of gasbag, and the positioning accuracy of cavity has been ensured through the gasbag, the damaged condition of face of stepping has been avoided.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
fig. 1 is a schematic perspective view of a mold for manufacturing a prefabricated weight-reducing stair according to the present invention;
fig. 2 is a side view of the mold for making the prefabricated weight-reducing staircase according to the present invention;
fig. 3 is a schematic structural view of a stair bottom mold for manufacturing a prefabricated weight-reducing stair of the present invention.
Wherein the reference numbers are as follows: 1. a base plate; 2. a front cover plate; 21. a lower stop block; 22. a hinge; 23. a front baffle; 3. a rear cover plate; 4. a side cover plate; 5. prefabricating a weight-reducing stair; 6. an air bag; 7. a stair bottom die; 8. and an upper cover plate.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
Example 1, a mould for making prefabricated weight-reducing stairs.
As shown in fig. 1 to 3, the mold for manufacturing the prefabricated weight-reducing stair of the embodiment includes a bottom plate 1, a front cover plate 2, a rear cover plate 3, two side cover plates 4 and an air bag 6, the bottom plate 1, the front cover plate 2, the rear cover plate 3 and the two side cover plates 4 surround to form a cavity for pouring the prefabricated weight-reducing stair 5, the air bag 6 is inserted into the cavity through holes on the two side cover plates 4, and the air bag 6 is connected with an external inflation and deflation device.
In this embodiment, bottom plate 1, front shroud 2, back shroud 3 and two side cover boards 4 surround and become a square cavity, can make the prefabrication after concreting in the cavity and subtract heavy stair 5, and gasbag 6 can follow the through-hole on any of two side cover boards 4 and insert in the cavity, and this embodiment is inside the through-hole entering mould of right side cover board specifically to be provided with the flange end cover on the through-hole of right side cover board, cover the flange end cover when concreting and avoid the concrete to flow.
In the embodiment, the air bag 6 is arranged in the mold, so that a cavity is formed in the prefabricated weight reducing stair 5, the size of the air bag 6 is controlled through the inflation and deflation device, the size of the cavity in the prefabricated weight reducing stair 5 is controlled, the weight reducing weight of the prefabricated weight reducing stair 5 is adjustable, the air bag 6 can be taken out after the prefabricated weight reducing stair 5 in the mold is solidified, and the air bag 6 can be recycled.
In the mold for manufacturing the prefabricated weight-reducing stair in the embodiment, the bottom plate 1 is provided with the stair bottom mold 7 for enabling concrete to form a step tread of the prefabricated weight-reducing stair 5 on the stair bottom mold 7, the stair bottom mold 7 comprises a plurality of right-angle protrusions which are connected in sequence, and each right-angle protrusion forms a step.
When the component reinforcing bar is pre-buried, install unfilled gasbag 6 in two bellied junctions in right angle, place the reinforcement cage and aerify gasbag 6 after accomplishing, predetermine to reserve after pre-buried to prefabricated subtract heavy stair 5 and water and smash.
In the mold for manufacturing the prefabricated weight-reducing stair in the embodiment, the front cover plate 2 comprises a lower stop 21, a hinge 22 and a front stop 23, the lower stop 21 is vertically installed at one end of the stair bottom mold 7, and the front stop 23 is connected with the lower stop 21 through the hinge 22.
Because the right-angled protrusion at the end of the stair bottom mold 7 has a downward inclined surface, in order to form the step at the end of the stair bottom mold 7, a vertical lower stop 21 needs to be arranged at the end of the stair bottom mold 7, the lower stop 21 is connected with a front baffle 23 through a hinge 22, and when the prefabricated lightening stair 5 is poured, the front baffle 23 is perpendicular to the lower stop 21 and is used for limiting the outflow of concrete.
In the mould for manufacturing the prefabricated weight-reducing stair in the embodiment, the mould further comprises an upper cover plate 8, wherein the upper cover plate 8 is installed on the front cover plate 2, the rear cover plate 3 and the two side cover plates 4, and after concrete pouring is completed, the flatness of the back face of the weight-reducing stair can be guaranteed through the upper cover plate 8.
The working flow and principle of the embodiment are as follows: after a mould for manufacturing the prefabricated lightening stair is cleaned, the airbag 6 in an uninflated state is installed, then a reinforcement cage is placed on a stair bottom mould 7, and the reserved embedded required by a product is installed; then, the air bag 6 is pre-inflated, so that the air bag 6 is preliminarily filled and keeps certain flexibility; concrete is poured and tamped on the component, the step surface is vibrated by the vibrating spear after being poured and tamped to the step surface, the vibrating spear can vibrate the concrete in the space below the air bag 6 before the air bag 6 is not filled, the air bag 6 is inflated for the second time after the air bag 6 is fully vibrated, the air pressure in the air bag 6 reaches 3-5MPa, and the edge part of the concrete can be squeezed in the inflating process of the air bag 6 to ensure that the concrete is filled; and pouring and vibrating the concrete material again. After initial setting for 1h, rotating the air bags 6 for 1-3 weeks (ensuring that the air bags 6 are not adhered to the concrete surface), curing for 8-12h, deflating the air bags 6 to ensure that the air bags 6 are completely contracted, then drawing the air bags 6 away, and demoulding the weight-reducing stair.
The mould that is used for making prefabricated heavy stair that subtracts of this embodiment, 6 sufficient and flat states of gasbag can provide effectual mould drawing of patterns time, utilize 6 size control of gasbag to subtract heavy stair and loose core the size at position to and subtract heavy stair subtract heavy weight, can take out used repeatedly 6 gasbags after the concrete solidifies.
Example 2, a prefabricated weight-reducing staircase.
The prefabricated heavy stair that subtracts of this embodiment is made through the mould that is used for making the prefabricated heavy stair that subtracts of embodiment 1, and the prefabricated size that subtracts the inside position of loosing core of heavy stair is adjustable, subtracts heavy weight adjustable, and the stair quality is better, and the tread is difficult to damaged.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a mould for making prefabricated heavy stair that subtracts, its characterized in that includes bottom plate (1), front shroud (2), back shroud (3), two side shroud (4) and gasbag (6), bottom plate (1), front shroud (2), back shroud (3) and two side shroud (4) surround and form the cavity of pouring prefabricated heavy stair (5) that subtracts, gasbag (6) pass through-hole on side shroud (4) insert in the cavity, gasbag (6) are connected outside and are filled the gas device.
2. The mold for manufacturing the prefabricated weight-reducing stair according to claim 1, wherein a stair bottom mold (7) is arranged on the bottom plate (1) and is used for enabling concrete to form a step tread of the prefabricated weight-reducing stair (5) on the stair bottom mold (7).
3. Mould for making prefabricated weight-reducing staircases according to claim 2, characterized in that said staircase bottom (7) comprises a plurality of right-angled projections connected in series, each of said right-angled projections forming a step.
4. The mold for manufacturing the prefabricated weight-reducing stairway as claimed in claim 2, wherein the front cover plate (2) comprises a lower stop (21), a hinge (22) and a front stop (23), the lower stop (21) is vertically mounted at one end of the stair bottom mold (7), and the front stop (23) is connected with the lower stop (21) through the hinge (22).
5. A mould for making prefabricated weight-reducing staircases according to claim 3, wherein each right-angled projection is provided with an air bag (6) at its junction.
6. A mould for making prefabricated weight-reducing staircases according to claim 4, characterized in that it further comprises an upper cover plate (8), said upper cover plate (8) being mounted on said front cover plate (2), rear cover plate (3) and two side cover plates (4).
7. Prefabricated weight-reducing staircase, characterized in that it is made by means of a mould for making prefabricated weight-reducing staircases according to any of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221351281.1U CN217573362U (en) | 2022-05-31 | 2022-05-31 | A mould and prefabricated heavy stair that subtract for making prefabricated heavy stair that subtracts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221351281.1U CN217573362U (en) | 2022-05-31 | 2022-05-31 | A mould and prefabricated heavy stair that subtract for making prefabricated heavy stair that subtracts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217573362U true CN217573362U (en) | 2022-10-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221351281.1U Active CN217573362U (en) | 2022-05-31 | 2022-05-31 | A mould and prefabricated heavy stair that subtract for making prefabricated heavy stair that subtracts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217573362U (en) |
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2022
- 2022-05-31 CN CN202221351281.1U patent/CN217573362U/en active Active
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