CN204001494U - A kind of precast hollow stair - Google Patents
A kind of precast hollow stair Download PDFInfo
- Publication number
- CN204001494U CN204001494U CN201420440270.XU CN201420440270U CN204001494U CN 204001494 U CN204001494 U CN 204001494U CN 201420440270 U CN201420440270 U CN 201420440270U CN 204001494 U CN204001494 U CN 204001494U
- Authority
- CN
- China
- Prior art keywords
- stair
- alignment pin
- length direction
- blind hole
- swivel nut
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 230000007812 deficiency Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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- Steps, Ramps, And Handrails (AREA)
Abstract
The utility model provides a kind of precast hollow stair, comprise stair tread, on stair tread, arrange and mark time, one side of marking time arranges horizontal blind hole, the length direction of stair tread arranges longitudinal blind hole, the opening of blind hole is arranged on the bottom part of stair tread, two hoisting devices are at least set on stair length direction, on hoisting device is arranged on and marks time, two suspenders are distributed on stair length direction, hoisting device has an alignment pin, the length direction of alignment pin and the width of marking time are in the same way, alignment pin is through the through hole of offering on swivel nut lower end, the height of swivel nut is T-shaped with the length of alignment pin and is connected, screwed hole is offered on swivel nut top, screw rod is installed in screwed hole, the outer end of screw rod connects link, alignment pin and swivel nut are embedded in the inside of marking time, link is positioned at the upper surface of marking time.The utility model can solve the deficiencies in the prior art.
Description
Technical field
The utility model relates to building prefabricated components, is a kind of precast hollow stair.
Background technology
Because cast-in-site stair exist more deficiency, therefore, this area provided the multiple technical scheme that stair product is made in industrialization in factory in recent years, to be directly installed on building, used.Yet this stair are not yet approved by this area at present, its main cause is: pre-stair weight is larger, and handling and install complicatedly make the cost of production of precast stair higher than cast stair.Although the advantage of precast stair is a lot, because it exists handling, complicated deficiency is installed, existing precast stair product cannot be promoted the use of.
Utility model content
The purpose of this utility model is to provide a kind of precast hollow stair, and it can solve the deficiencies in the prior art.
The utility model for achieving the above object, be achieved through the following technical solutions: a kind of precast hollow stair, comprise stair tread, on stair tread, arrange and mark time, one side of marking time arranges horizontal blind hole, the length direction of stair tread arranges longitudinal blind hole, the opening of blind hole is arranged on the bottom part of stair tread, two hoisting devices are at least set on stair length direction, on hoisting device is arranged on and marks time, two suspenders are distributed on stair length direction, hoisting device has an alignment pin, the length direction of alignment pin and the width of marking time are in the same way, alignment pin is through the through hole of offering on swivel nut lower end, the height of swivel nut is T-shaped with the length of alignment pin and is connected, screwed hole is offered on swivel nut top, screw rod is installed in screwed hole, the outer end of screw rod connects link, alignment pin and swivel nut are embedded in the inside of marking time, link is positioned at the upper surface of marking time.Uniform two at the width of stair of described hoisting devices, uniform two at the length direction of stair.Described longitudinal blind hole is offered four stairway width direction is uniform.On the bottom platform of stair, offer the first taper locating hole, on the higher-end platform of stair, offer the second taper locating hole.The center line of horizontal blind hole and the distance H 1 of marking time between upper surface are 30-60 millimeter, and the center line of longitudinal blind hole and the distance H 2 of marking time between basal surface are 30-60 millimeter.
The advantage of the precast hollow stair that the utility model provides is: it is guaranteeing under the prerequisite of stair intensity, weight is lighter, for transporting and installing, alleviated weight, the hoisting device arranging makes the handling of stair very convenient, and manufacturing cost is significantly reduced, for the application of precast stair provides wide space.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model; Accompanying drawing 2 is plan structure schematic diagrames of accompanying drawing 1; Accompanying drawing 3 is A-A cross-sectional view in accompanying drawing 1; Accompanying drawing 4 is I portion structure for amplifying schematic diagrames in accompanying drawing 1; Accompanying drawing 5 is II portion structure for amplifying schematic diagrames in accompanying drawing 1; Accompanying drawing 6 is III portion structure for amplifying schematic diagrames in accompanying drawing 1.
The specific embodiment
Contrast accompanying drawing, is described further the utility model.
In figure, 1 is stair tread, on stair tread 1, arrange and mark time 2, 2 the side of marking time arranges horizontal blind hole 5, the length direction of stair tread 1 arranges longitudinal blind hole 7, the opening of blind hole 7 is arranged on the bottom part of stair tread 1, two hoisting devices are at least set on stair length direction, on hoisting device is arranged on and marks time, two suspenders are distributed on stair length direction, hoisting device has an alignment pin 14, the length direction of alignment pin 14 and the width of marking time are in the same way, alignment pin 14 is through the through hole 13 of offering on swivel nut 11 lower ends, the height of swivel nut 11 is T-shaped with the length of alignment pin 14 and is connected, screwed hole 12 is offered on swivel nut 11 tops, the interior installation screw rod 15 of screwed hole 12, the outer end of screw rod 15 connects link 16, alignment pin 14 and swivel nut 11 are embedded in the inside of marking time, link 16 is positioned at the upper surface of marking time.Weight of the present utility model is compared with prior art weight reduction 20% left and right, and do not affect the intensity of stair, loading, unloading stair do not need to use complicated suspender, link 16 is directly hung on hook, because hoisting device is distributed on length and the width of stair, very easily by stair handling, transportation and install.
Further program of the utility model is: uniform two at the width of stair of described hoisting devices, uniform two at the length direction of stair.
The preferred scheme of the utility model is: described longitudinal blind hole 7 is offered four stairway width direction is uniform.It is reaching under the prerequisite requiring in stair intensity and application life, and weight is the lightest, manufacturing cost is minimum.
The further preferred scheme of the utility model is: on the bottom platform 4 of stair, offer the first taper locating hole 10, offer the second taper locating hole 9 on the higher-end platform 3 of stair.This structure makes the installation accurate positioning of stair, is convenient to fixedly reinforcing bar, easy construction.
The center line of horizontal blind hole 5 described in the utility model and the distance H 1 of marking time between 2 upper surfaces are 30-60 millimeter, and the center line of longitudinal blind hole 7 and the distance H 2 of marking time between basal surface are 30-60 millimeter.This is the optimal selection scheme that reaches stair step intensity and application life, low cost of manufacture, and be convenient to install, manufacture.In figure, 8 is anti-slip tanks.
Claims (5)
1. precast hollow stair, comprise stair tread (1), upper arrange mark time (2) of stair tread (1), it is characterized in that: a side of mark time (2) arranges horizontal blind hole (5), the length direction of stair tread (1) arranges longitudinal blind hole (7), the opening of blind hole (7) is arranged on the bottom part of stair tread (1), two hoisting devices are at least set on stair length direction, on hoisting device is arranged on and marks time, two suspenders are distributed on stair length direction, hoisting device has an alignment pin (14), the length direction of alignment pin (14) and the width of marking time are in the same way, alignment pin (14) is through the through hole (13) of offering on swivel nut (11) lower end, the height of swivel nut (11) is T-shaped with the length of alignment pin (14) and is connected, screwed hole (12) is offered on swivel nut (11) top, screw rod (15) is installed in screwed hole (12), the outer end of screw rod (15) connects link (16), alignment pin (14) and swivel nut (11) are embedded in the inside of marking time, link (16) is positioned at the upper surface of marking time.
2. a kind of precast hollow stair according to claim 1, is characterized in that: uniform two at the width of stair of described hoisting devices, uniform two at the length direction of stair.
3. a kind of precast hollow stair according to claim 1, is characterized in that: described longitudinal blind hole (7) is offered four stairway width direction is uniform.
4. a kind of precast hollow stair according to claim 1, is characterized in that: on the bottom platform (4) of stair, offer the first taper locating hole (10), offer the second taper locating hole (9) on the higher-end platform of stair (3).
5. a kind of precast hollow stair according to claim 1, it is characterized in that: the center line of horizontal blind hole (5) and the distance H 1 of marking time between (2) upper surface are 30-60 millimeter, the center line of longitudinal blind hole (7) and the distance H 2 of marking time between basal surface are 30-60 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420440270.XU CN204001494U (en) | 2014-08-06 | 2014-08-06 | A kind of precast hollow stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420440270.XU CN204001494U (en) | 2014-08-06 | 2014-08-06 | A kind of precast hollow stair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204001494U true CN204001494U (en) | 2014-12-10 |
Family
ID=52041517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420440270.XU Expired - Lifetime CN204001494U (en) | 2014-08-06 | 2014-08-06 | A kind of precast hollow stair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204001494U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153528A (en) * | 2014-08-06 | 2014-11-19 | 山东万斯达建筑工业化研究院有限公司 | Prefabricated hollow staircase |
| CN105544895A (en) * | 2016-02-15 | 2016-05-04 | 济南汇富住宅工业有限公司 | Concrete prefabricated stair |
-
2014
- 2014-08-06 CN CN201420440270.XU patent/CN204001494U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153528A (en) * | 2014-08-06 | 2014-11-19 | 山东万斯达建筑工业化研究院有限公司 | Prefabricated hollow staircase |
| CN105544895A (en) * | 2016-02-15 | 2016-05-04 | 济南汇富住宅工业有限公司 | Concrete prefabricated stair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |