CN209851207U - Prestressed stair mold - Google Patents
Prestressed stair mold Download PDFInfo
- Publication number
- CN209851207U CN209851207U CN201920182549.5U CN201920182549U CN209851207U CN 209851207 U CN209851207 U CN 209851207U CN 201920182549 U CN201920182549 U CN 201920182549U CN 209851207 U CN209851207 U CN 209851207U
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- Prior art keywords
- die
- mold
- stair
- tensioning
- platform
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- 230000000903 blocking effect Effects 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 239000004570 mortar (masonry) Substances 0.000 description 11
- 230000002180 anti-stress Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Moulds, Cores, Or Mandrels (AREA)
Abstract
The utility model provides a prestressed stair mold, which comprises a side mold and a bottom mold, wherein the side mold comprises a first beam part, a diagonal beam part and a second beam part; the bottom die comprises a first platform part, a step part, a second platform part and a side blocking part; the side die and the bottom die are connected through a tensioning device, and the side die and the bottom die are connected through the tensioning device; the first platform part and the second beam part are respectively provided with a tensioning platform and a first strip-shaped through hole; the tensioning table is provided with a second through hole, and the first platform part and the second beam part are provided with third through holes communicated with the second through hole; and the side die is provided with a die removing device which separates the side die from the bottom die. The prestressed stair mold has the advantages of high tensile strength, high flatness and good demolding effect.
Description
Technical Field
The utility model relates to a construction auxiliary assembly technical field, concretely relates to prestressing force stair mould.
Background
The prefabricated staircase of mill has that the production standard is same, quality precision is accurate and the clean advantage in surface, can effectively practice thrift building material simultaneously, shorten the engineering time, be convenient for install, consequently, receives favour increasingly.
When the factory prefabricated staircase is produced, a corresponding mould is needed, the existing mould is used for preparing the prefabricated staircase, and the following defects are mainly existed: firstly, the tensile strength is poor, and the stairs are easy to deform; secondly, when the mold after concrete pouring is used for demolding, the stair is easily damaged; thirdly, the prepared prefabricated staircase has rough side surfaces.
Disclosure of Invention
The utility model provides a prestressing force stair mould specifically is a prestressing force stair mould that is equipped with straining device, is equipped with the anti stress reinforcing bar and imports and exports and the form removal device to the above-mentioned not enough of prior art. The prestressed stair mold has the advantages of high tensile strength, high flatness and good demolding effect.
On the basis of the prior art, the utility model provides a prestressed stair mold, which comprises a side mold and a bottom mold,
the side die includes a first beam portion, a diagonal beam portion, and a second beam portion;
the bottom die comprises a first platform part, a step part, a second platform part and a side blocking part;
when the first platform part is in contact with the first beam part, the step part is arranged corresponding to the oblique beam part, the second platform part is in contact with the second beam part, and the side blocking part is in contact with the upper surface of the side die, the stair die forms a cavity with an opening on one side, and the cavity is used for pouring concrete mortar;
the side die and the bottom die are connected through the tensioning device, and the side die and the bottom die are connected through the tensioning device, so that the connection tightness of the bottom die and the side die is improved, concrete mortar is prevented from leaking from the connection part of the bottom die and the side die, and the flatness of the side surface of the stair die is improved;
the first platform part and the second beam part are respectively provided with a tensioning platform and a first strip-shaped through hole;
the tensioning table is provided with a second through hole, the first platform part and the second beam part are provided with third through holes, the third through holes are communicated with the second through holes, and the anti-stress steel bars penetrate through the second through holes and the third through holes on the tensioning table of the first platform part and the second through holes and the third through holes on the tensioning table of the second beam part;
when pouring, concrete mortar is injected from the opening side of the stair mold, after solidification, the anti-stress reinforcing steel bars are cut off from the first through holes, and the concrete mortar and the anti-stress reinforcing steel bars form a whole, so that the prestress of the prefabricated stair is improved, and the anti-deformation capability and the tensile strength of the prefabricated stair are improved;
and the side die is provided with a die removing device which separates the side die from the bottom die.
Preferably, the tensioning device comprises a first screw rod and a first nut matched with the first screw rod; the first screw rod and the first nut are used for connecting the side die and the bottom die, so that the stair die is convenient to disassemble.
Preferably, in order to cooperate with the tensioning device, a first lug is arranged on the inclined beam part of the side die, a second lug is arranged on the bottom die step part, and a first screw rod penetrates through the first lug and the second lug and connects the bottom die and the side die through a first nut.
For further improving the fastening effect of the tensioning devices to the side die and the bottom die, the tensioning devices are eight, and the eight tensioning devices are respectively positioned on two sides of the stair die, so that the side die and the bottom die are connected more tightly.
Preferably, the form removing device comprises a second nut positioned on the lower surface of the inclined beam part, and the second nut is positioned below the contact part of the side baffle part and the side mold; a fourth through hole coaxial with the second nut is formed in the oblique beam part; after the concrete mortar is solidified, the screw rod matched with the second nut is screwed into the second nut, and the lower surface of the side wall of the bottom die clamped on the upper surface of the side die is jacked open by screwing the screw rod, so that the die removing process is realized.
Preferably, the first through hole on the first platform part is located on the right side of the tensioning station, and the first through hole on the second beam part is located on the left side of the tensioning station.
Preferably, the bottom die, the side die and the tensioning platform are all welded by Q235 steel, so that the stair die has enough strength to resist the prestress tensioning force and prevent deformation.
Compared with the prior art, the utility model has the advantages that the bottom die and the side die of the stair die are fastened by arranging the tensioning device, so that the stair die is ensured not to leak slurry in the use process, and the flatness of the surface of the finished prefabricated stair is improved; by arranging the form removal device, the mode that the bottom die and the side die are removed by strong mechanical force in the prior art is replaced, so that the removal of the grinding tool in the form removal process is more flexible and easier, and the integrity of the prefabricated staircase is ensured; the tension table is arranged, and the second through hole is formed in the tension table, so that the anti-stress steel bar is convenient to install; by arranging the first through hole, the reinforcing steel bar can be cut off after the concrete mortar is solidified, so that the reasonability, convenience and practicability of the use of the mold are improved; through the arrangement, the stair mold has the advantages of high tensile strength, high flatness and good demolding effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of a side mold structure.
Fig. 3 is a schematic view of the bottom mold structure.
Fig. 4 is a structure view of a prestressed stairway.
In the figure, 1-side die, 101-first beam section, 102-diagonal beam section, 103-second beam section, 2-bottom die, 201-first platform section, 202-step section, 203-second platform section, 204-side stop section, 3-tensioning device, 301-first screw, 302-first nut, 4-first lug, 5-second lug, 6-tensioning platform, 7-first through hole, 8-second through hole, 9-form removal device, 901-second nut, 10-stair, 11-rebar.
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
As shown in fig. 1-4, the utility model provides a prestressed stair mold, which comprises a side mold 1 and a bottom mold 2,
as shown in fig. 2, the side die 1 includes a first beam portion 101, an oblique beam portion 102, and a second beam portion 103;
as shown in fig. 3, the bottom mold 2 includes a first platform portion 201, a step portion 202, a second platform portion 203, and a side block portion 204;
not all the components are shown in fig. 2 and 3, emphasis is placed on the structure of the side die 1 and the bottom die 2,
when the first platform part 201 is in contact with the first beam part 101, the step part 202 is arranged corresponding to the cross beam part 102, the second platform part 203 is in contact with the second beam part 103, and the side blocking part 204 is in contact with the upper surface of the side mold 1, the stair mold forms a cavity with an opening on one side for pouring concrete mortar;
the side die 1 and the bottom die 2 are connected through a tensioning device 3, and the tensioning device 3 comprises a first screw 301 and a first nut 302 matched with the first screw 301; the first screw 301 and the first nut 302 are used for connecting the side die 1 and the bottom die 2, so that the stair die can be conveniently disassembled; in addition, the tensioning device 3 connects the side die 1 and the bottom die 2, so that the connection tightness of the bottom die 2 and the side die 1 is improved, concrete mortar is prevented from leaking from the connection part of the bottom die and the side die, and the flatness of the side surface of the stair die is improved;
in order to match the use of the tensioning device 3, a first lug 4 is arranged on the oblique beam part 102 of the side die 1, a second lug 5 is arranged on the step part 202 of the bottom die 2, a first screw 301 passes through the first lug 4 and the second lug 5, and the bottom die 2 and the side die 1 are connected through a first nut 302;
in order to further improve the fastening effect of the tensioning devices 3 on the side mold 1 and the bottom mold 2, eight tensioning devices 3 are arranged, and the eight tensioning devices 3 are respectively positioned on two sides of the stair mold, so that the side mold 1 and the bottom mold 2 are connected more firmly;
the first platform part 201 and the second beam part 103 are both provided with a tensioning platform 6 and a first elongated through hole 7, wherein the first through hole 7 on the first platform part 201 is located on the right side of the tensioning platform 6, and the first through hole 7 on the second beam part 103 is located on the left side of the tensioning platform 6;
the tensioning table 6 is provided with a second through hole 8, the first platform part 201 and the second beam part 103 are both provided with a third through hole (not shown in the figure) communicated with the second through hole 8, and the anti-stress steel bar 11 passes through the second through hole 8 (not shown in the figure) and the third through hole on the tensioning table 6 of the first platform part 201 and the second through hole 8 and the third through hole (not shown in the figure) on the tensioning table 6 of the second beam part 103;
when pouring, concrete mortar is injected from the opening side of the stair mold, after solidification, the anti-stress steel bars 11 are cut off from the first through holes 7, and the concrete mortar and the anti-stress steel bars 11 form a whole, so that the prestress of the prefabricated stair 10 is improved, and the anti-deformation capacity and the tensile strength of the prefabricated stair are improved;
the side die 1 is provided with a die removing device 9, and the die removing device 9 separates the side die 1 and the bottom die 2;
the form removing device 9 comprises a second nut 901 positioned on the lower surface of the diagonal beam part 102, and the second nut 901 is positioned below the contact part of the side baffle part 204 and the side mold 1; a fourth through hole (not shown) coaxial with the second nut 901 is formed in the diagonal beam portion 102; after the concrete mortar is solidified, a screw rod matched with the second nut 901 is screwed into the second nut 901, the second nut 901 penetrates through a fourth through hole (not shown in the figure), and the lower surface of the side wall of the bottom die 2 clamped on the upper surface of the side die 1 is jacked open, so that the die removing process is realized;
the bottom die 2, the side die 1 and the tensioning table 6 are all formed by welding Q235 steel, so that the stair die has enough strength to resist prestress tensioning force and prevent deformation.
The present invention has been described in detail above. The terms "upper", "lower", "left" and "right" in the present embodiment are explained with respect to positions in the drawings of the specification.
Claims (7)
1. A prestressed stair mold is characterized by comprising a side mold and a bottom mold, wherein the side mold comprises a first beam part, a diagonal beam part and a second beam part; the bottom die comprises a first platform part, a step part, a second platform part and a side blocking part;
the side die and the bottom die are connected through a tensioning device, and the side die and the bottom die are connected through the tensioning device;
the first platform part and the second beam part are respectively provided with a tensioning platform and a first strip-shaped through hole;
the tensioning table is provided with a second through hole, and the first platform part and the second beam part are provided with third through holes communicated with the second through hole;
and the side die is provided with a die removing device which separates the side die from the bottom die.
2. The pre-stressed stair mold of claim 1, wherein the tensioning device comprises a first screw and a first nut mated with the first screw.
3. The pre-stressed stair mold of claim 2, wherein a first lug is provided on the stringer portion of the side mold, a second lug is provided on the step portion of the bottom mold, and a first screw passes through the first lug and the second lug and connects the bottom mold and the side mold by a first nut.
4. A pre-stressed stair mould according to any one of claims 1 to 3, wherein eight tensioning devices are provided, one on each side of the stair mould.
5. The pre-stressed stair mold of claim 4, wherein the form removal means comprises a second nut located on a lower surface of the stringer, the second nut being located below where the side stop meets the side form; and a fourth through hole coaxial with the second nut is arranged on the oblique beam part.
6. The prestressed stair mold of claim 5, wherein the first through-hole in the first platform section is located on the right side of the tensioning table and the first through-hole in the second beam section is located on the left side of the tensioning table.
7. The pre-stressed stair mold of claim 6, wherein the bottom mold, the side mold and the tension table are welded by Q235 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920182549.5U CN209851207U (en) | 2019-02-01 | 2019-02-01 | Prestressed stair mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920182549.5U CN209851207U (en) | 2019-02-01 | 2019-02-01 | Prestressed stair mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209851207U true CN209851207U (en) | 2019-12-27 |
Family
ID=68931504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920182549.5U Active CN209851207U (en) | 2019-02-01 | 2019-02-01 | Prestressed stair mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209851207U (en) |
-
2019
- 2019-02-01 CN CN201920182549.5U patent/CN209851207U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240717 Address after: 300000 Tianjin Science and Technology Square 7-2-505, West of Kexue East Road, Nankai District, Tianjin City Patentee after: Hongli Xinzhi Technology (Tianjin) Co.,Ltd. Country or region after: China Address before: 250000 Zhonghai International Community A5-30-103, Shizhong District, Jinan City, Shandong Province Patentee before: Cai Jun Country or region before: China |