CN216429047U - A locating support subassembly that is used for buried bolt in advance on cast-in-place roof beam of accurate fixed stair - Google Patents
A locating support subassembly that is used for buried bolt in advance on cast-in-place roof beam of accurate fixed stair Download PDFInfo
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- CN216429047U CN216429047U CN202122553638.6U CN202122553638U CN216429047U CN 216429047 U CN216429047 U CN 216429047U CN 202122553638 U CN202122553638 U CN 202122553638U CN 216429047 U CN216429047 U CN 216429047U
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Abstract
The utility model discloses a locating bracket subassembly that is used for buried bolt on cast-in-place roof beam of accurate fixed stair, including locating support and connect the position sleeve on it, adjusting nut is disposed to the position sleeve, and buried bolt passes back connection adjusting nut from the position sleeve in advance, guarantees the straightness that hangs down of buried bolt stretch-out section through the position sleeve, realizes buried bolt's the height adjustment that stretches out through adjusting nut. Before the use, mounting holes for embedded bolts are accurately formed in the aluminum template on the top surface of the stair beam according to design requirements. During the use, the locating support is placed on the aluminium template, makes the locating sleeve that locating support bottom and top correspond the setting coaxially adjust well with the bolt mounting hole on the aluminium template, and after embedded bolt passed the mounting hole on locating sleeve and the aluminium template, accurate positioning and straightness that hangs down all can be guaranteed, then realizes the adjustment of embedded bolt extension height through the adjusting nut of locating support top locating sleeve top, guarantees the quick hoist and mount of prefabricated stair, improves the construction progress.
Description
Technical Field
The utility model relates to an assembled stair specifically are a locating support subassembly that is used for buried bolt on the cast-in-place roof beam of accurate fixed stair.
Background
The assembly type building is an important measure for promoting transformation and upgrading of the building industry of China and the urban and rural construction field of housing and realizing novel national township development and energy conservation and emission reduction strategy.
In order to meet the assembly rate, the prefabricated staircase is also applied to the fabricated building in a large number. The prefabricated staircase is one of the important components of prefabricated parts of the prefabricated building, and compared with the traditional cast-in-place structure, the prefabricated staircase can reduce the loss of a large number of templates and wood purlin. In order to meet the requirement of structural safety, the assembled stair must be rigidly connected with the embedded bolts on the stair girders. However, the bolt pre-embedding for rigid connection at present has the following two problems:
firstly, the positioning is inaccurate, so that the bolts and the preformed holes of the prefabricated staircase are not installed in a deviation manner;
secondly, the perpendicularity of the bolts cannot be guaranteed without fixing measures in the construction process, and the bolts are embedded obliquely after cast-in-place concrete is poured, so that the prefabricated staircase is difficult to hoist. Inaccurate location need again the bar planting and do drawing experiment, bolt slope need to rectify, beat the hoist and mount speed that has reduced prefabricated staircase, influence the time limit for a project.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can guarantee the accurate positioning of pre-buried bolt in the cast-in-place roof beam of stair, can guarantee its straightness that hangs down and the locating rack subassembly of protrusion height after the stair roof beam is pour again.
The utility model provides a locating support subassembly that is used for accurate fixed stair cast-in-place roof beam to go up buried bolt in advance, including locating support and connect the position sleeve on it, adjusting nut is joined in marriage to the position sleeve, and buried bolt in advance passes back connection adjusting nut from the position sleeve, guarantees the straightness that hangs down of buried bolt stretch out section through the position sleeve, realizes buried bolt in advance's the height adjustment that stretches out through adjusting nut.
In one embodiment of the above technical solution, the positioning bracket is made of steel bars and includes a lower shelf, an upper shelf and connecting steel bars.
In one embodiment of the above technical solution, the height of the positioning bracket is 70mm to 80 mm.
In one embodiment of the above technical scheme, the positioning sleeves are fixed at positions corresponding to the embedded bolts on the lower layer frame and the upper layer frame.
In an embodiment of the above technical solution, a lock washer is disposed between the positioning sleeve on the upper rack and the adjusting nut.
In an embodiment of the above technical solution, the positioning sleeve is a regular hexagon column with a central circular hole.
In an embodiment of the above technical solution, the positioning bracket is provided with a vertical screw for collecting the adjusting nut and the anti-loose gasket.
The utility model discloses before the use, according to the accurate mounting hole of seting up buried bolt in advance of the design requirement on the aluminium template of stair beam top surface, can guarantee buried bolt in advance's accurate positioning. During the use, the locating support is placed on the aluminium template, make the locating sleeve that locating support bottom and top correspond the setting coaxial adjusting with the bolt mounting hole on the aluminium template, after buried bolt passes the mounting hole on locating sleeve and the aluminium template, accurate positioning and straightness all can be guaranteed that hangs down, then realize buried bolt extension height's adjustment through the adjusting nut of locating support top locating sleeve top, can make buried bolt have accurate location after the cast-in-place roof beam of stair pours the shaping, good vertical state and accurate extension height, thereby can guarantee buried bolt and the prefabricated accurate assembly of reserving the hole on the stair, realize the quick hoist and mount of prefabricated stair, improve the construction progress.
Drawings
Fig. 1 is a schematic view of a usage status of an embodiment of the present invention.
Fig. 2 is a schematic top view of the present embodiment.
Detailed Description
As shown in fig. 1 and fig. 2, the positioning support assembly for accurately fixing the embedded bolt on the cast-in-situ beam of the stair disclosed in the embodiment includes a positioning support 1, a positioning sleeve 2, a lock washer 3 and an adjusting nut 4.
The positioning support 1 is arranged on the upper surface of an aluminum template 6 of the stair cast-in-place beam 5, and the embedded bolts 7 in the stair cast-in-place beam penetrate through the aluminum template and then are accurately positioned through the positioning support.
Therefore, the aluminum template is required to be accurately provided with the round holes for installing the embedded bolts according to the design requirements of the embedded bolts.
The positioning bracket 2 can be made of steel bars on site to ensure the coaxiality of the positioning sleeve on the positioning bracket and the round hole on the aluminum die.
The positioning bracket 1 comprises a lower layer frame, an upper layer frame and connecting steel bars. For convenience of operation, the height of the positioning bracket in the embodiment is 70 mm.
In order to ensure the good verticality of the embedded bolt, the positioning sleeves 2 are respectively welded and fixed at the round holes on the corresponding aluminum template on the upper layer frame and the lower layer frame of the positioning support 2.
The positioning sleeve 2 adopts a regular hexagon column with a central round hole, is similar to a hexagon nut structure, and can directly adopt a hexagon nut with a specification one larger than that of an embedded bolt so as to reduce processing.
The anti-loosening gasket 3 is sleeved on the output section of the embedded bolt 7, and the adjusting nut 4 is screwed on the embedded bolt and corresponds to the upper part of the anti-loosening gasket.
In order to facilitate collection of the adjusting nut 4 and the anti-loose gasket 3 which are detached after the device is used, the vertical screw rod 8 is arranged on the positioning support 1, and the adjusting nut and the anti-loose gasket which are detached are sleeved on the vertical screw rod for subsequent reuse. The specification of the vertical screw is the same as that of the embedded bolt.
The specific use process of this locating support subassembly is as follows:
after the aluminum template 5 on the top surface of the cast-in-place beam of the stair is installed, the positioning bracket 1 is placed on the aluminum template, and the positioning sleeve 2 on the positioning bracket is aligned to the round hole on the aluminum template;
inserting the prepared embedded bolt 7 into round holes in the positioning sleeve 2 and the aluminum template 5;
sleeving a locking gasket 3 on the extending section above the embedded bolt 7 corresponding to the positioning support 1, screwing an adjusting nut 4 and adjusting the height of the extending section to meet the design requirement;
pouring concrete of the stair beam, dismounting the adjusting nut 4 and the anti-loosening gasket 3 from the embedded bolt 7 and concentrating on the vertical screw 8 before removing the formwork after the concrete is finally set, taking down the whole support assembly from the aluminum formwork and storing the support assembly to a specified position, and waiting for the previous floor to be recycled.
From above-mentioned structure and the use of this subassembly can be seen out, it uses with the aluminium template cooperation at stair roof beam top surface, guarantees the accurate position of position sleeve on the locating support through accurate the having seted up buried bolt mounting hole in the aluminium template to the accessible position sleeve guarantees that buried bolt's location and straightness that hangs down are all guaranteed. The adjusting nut above the positioning support top positioning sleeve is used for adjusting the extending height of the embedded bolt, so that the embedded bolt can be accurately positioned, in a good vertical state and accurately extended after the cast-in-place beam of the stair is poured and formed, the accurate assembly of the embedded bolt and a reserved hole in the prefabricated stair can be guaranteed, the prefabricated stair can be hoisted quickly, and the construction progress is improved.
Claims (7)
1. The utility model provides a locating support subassembly that is used for accurate fixed cast-in-place roof beam of stair pre-buried bolt, its characterized in that: the embedded bolt adjusting device comprises a positioning support and a positioning sleeve, wherein the bottom and the top of the positioning support are correspondingly provided with the positioning sleeve, the positioning sleeve is provided with an adjusting nut, an embedded bolt penetrates through the positioning sleeve and then is connected with the adjusting nut, the perpendicularity of an extending section of the embedded bolt is ensured through the positioning sleeve, and the extending height of the embedded bolt is adjusted through the adjusting nut.
2. The positioning bracket assembly for accurately fixing the embedded bolts on the cast-in-situ beam of the stair as claimed in claim 1, is characterized in that: the positioning bracket is made of steel bars and comprises a lower layer frame, an upper layer frame and connecting steel bars.
3. The positioning bracket assembly for accurately fixing the embedded bolts on the cast-in-situ beam of the stair as claimed in claim 2, is characterized in that: the height of the positioning support is 70mm-80 mm.
4. The positioning bracket assembly for accurately fixing the embedded bolts on the cast-in-situ beam of the stair as claimed in claim 2, is characterized in that: and the positions of the lower layer frame and the upper layer frame corresponding to the embedded bolts are both fixed with the positioning sleeves.
5. The positioning bracket assembly for accurately fixing the embedded bolts on the cast-in-situ beam of the stair as claimed in claim 2, is characterized in that: and a locking gasket is arranged between the positioning sleeve on the upper layer frame and the adjusting nut.
6. The positioning bracket assembly for accurately fixing the embedded bolts on the cast-in-situ stair beam as claimed in claim 5, is characterized in that: the locating sleeve is a regular hexagon column with a central round hole.
7. The positioning bracket assembly for accurately fixing the embedded bolts on the cast-in-situ stair beam as claimed in claim 5, is characterized in that: and the positioning bracket is provided with a vertical screw rod for collecting the adjusting nut and the anti-loosening gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122553638.6U CN216429047U (en) | 2021-10-22 | 2021-10-22 | A locating support subassembly that is used for buried bolt in advance on cast-in-place roof beam of accurate fixed stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122553638.6U CN216429047U (en) | 2021-10-22 | 2021-10-22 | A locating support subassembly that is used for buried bolt in advance on cast-in-place roof beam of accurate fixed stair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216429047U true CN216429047U (en) | 2022-05-03 |
Family
ID=81334028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122553638.6U Active CN216429047U (en) | 2021-10-22 | 2021-10-22 | A locating support subassembly that is used for buried bolt in advance on cast-in-place roof beam of accurate fixed stair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216429047U (en) |
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2021
- 2021-10-22 CN CN202122553638.6U patent/CN216429047U/en active Active
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