CN206999248U - A kind of prefabricated stringer type stairway and its particular manufacturing craft - Google Patents
A kind of prefabricated stringer type stairway and its particular manufacturing craft Download PDFInfo
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- CN206999248U CN206999248U CN201720591754.8U CN201720591754U CN206999248U CN 206999248 U CN206999248 U CN 206999248U CN 201720591754 U CN201720591754 U CN 201720591754U CN 206999248 U CN206999248 U CN 206999248U
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- mould
- pedal
- auxiliary beam
- die cavity
- upper mould
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Abstract
The utility model discloses a kind of prefabricated stringer type stairway and its particular manufacturing craft, including a left side, a pair of girders that right both sides play a supportive role, and some step units being arranged in order, step unit includes pedal and auxiliary beam, pedal and auxiliary beam are into platy structure, the both ends of auxiliary beam and pedal are supported and fixed on the girder of both sides, the outer rim of pedal is also supported on auxiliary beam, girder, auxiliary beam and pedal are the shapings of cement concrete formed by integrally casting, particular manufacturing craft includes fixed lower mould, the upper mould and two turnover side forms of activity, side form is hinged on the die holder of lower mould, upper mould is buckled on lower mould, the die cavity for pouring the step unit is formed between upper die and lower die, the die cavity for pouring girder is formed between side form and upper mould, the die cavity of both sides and middle mould cavity, the dosage of concrete can effectively be reduced, reduce space occupancy rate.
Description
Technical field
A kind of stair pouring technique is the utility model is related to, particularly with cement concrete formed by integrally casting, specifically
A kind of prefabricated stringer type stairway and its particular manufacturing craft.
Background technology
The existing stair that pour are mostly cranked slab stairs, as shown in Figure 1.The bottom surface 102 of cranked slab stairs is complete one oblique
Face, step unit 101 are formed on inclined-plane, and the bottom surface of cranked slab stairs and step unit are poured with cement build up entity completely, so
Structure can guarantee that cranked slab stairs has good hardness and stress performance, and easily pour, when particularly pouring at the scene,
The mould that pours of cranked slab stairs easily assembles.But cranked slab stairs is there is also many deficiencies, for example pours cranked slab stairs and to use
Substantial amounts of concrete, cranked slab stairs space-consuming volume is big in addition.Obviously, can so cause to pour stair cost height, space profit
It is low with rate.In order to solve this problem, some is proposed with the cheap expanded material of the inside of cranked slab stairs filling cost, but
It is that stair intensity can be influenceed using expanded material filling, cranked slab stairs risk of breakage is present, should not promote；Suggestion also is adopted
Substitute cranked slab stairs with steel construction, avoid influence of the cranked slab stairs to space, but the cost of steel construction is apparently higher than slab-type apartment building
Ladder, it is difficult to popularize.
Utility model content
The utility model provides a kind of prefabricated stringer type stairway and its particular manufacturing craft, solves that cranked slab stairs materials are more, occupancy
The technical problem in space, reduce stair and pour cost, suitable for being widely popularized popularization.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical scheme that：
A kind of prefabricated stringer type stairway, it is characterised in that a pair of the girders to be played a supportive role including arranged on left and right sides, Yi Jiruo
The dry step unit being arranged in order, step unit include pedal and auxiliary beam, pedal and auxiliary beam into platy structure, auxiliary beam and pedal
Both ends are supported and fixed on the girder of both sides, and the outer rim of pedal is also supported on auxiliary beam, and girder, auxiliary beam and pedal are that cement mixes
Solidifying native formed by integrally casting shaping.
The perpendicular structure of the auxiliary beam and pedal.
Reinforcement is embedded with the girder, auxiliary beam and pedal.
A kind of particular manufacturing craft for manufacturing the prefabricated stringer type stairway, it is characterised in that including fixed lower mould, activity it is upper
Mould and two turnover side forms, side form are hinged on the die holder of lower mould, and upper mould is buckled on lower mould, shape between upper die and lower die
Into the die cavity for pouring the step unit, the die cavity for pouring girder, die cavity and the centre of both sides are formed between side form and upper mould
Mould cavity.
The opposite face of the lower mould and upper mould is respectively formed on the projection of some jagged projections, the projection of upper mould and lower mould
It is staggered, forms the die cavity for pouring step unit.
Position among the adjacent protrusions of the upper mould forms the horizontal strip shape gob that cement concrete is injected into die cavity.
Respectively mould is held in installation one at the both ends of the lower mould, and end mould includes the plate body for smooth girder end face, and is used for
The plate body of smooth step unit end face, the base of mould is held to be hinged on the die holder of lower mould.
The upper mould is divided into two units in left and right, and the outboard end of each upper die unit is hinged on the die holder of lower mould.
At least one in two units of the side form, end mould and upper mould is to use Driven by Hydraulic Cylinder, the lower mould
Die holder bottom surface on installation make the shaking device that mould integrally shakes.
A kind of construction method for manufacturing the prefabricated stringer type stairway, it is characterised in that based on die for special purpose described in claim 4
Tool, comprises the following steps：
Mould in opening, the reinforcing bar of establishment is placed on lower mould, mould and two side forms on fastening, formation pours die cavity；
The joints cement concrete into die cavity, cement concrete is shaken, cement concrete is full of die cavity, then it is smooth from mould
The cement concrete of intracavitary extrusion；
First make the cement concrete solidification of the interior shaping of die cavity, then movable two side forms and upper mould, make side form and upper mould with coagulating
Solid cement concrete surface separation, finally take out the prefabricated stringer type stairway of shaping.
Compared to the prior art, beneficial effect caused by the utility model is：
By pedal designs into platy structure, concreting amount is reduced, girder and auxiliary beam have good support performance, auxiliary
The both ends of beam are fixed and are cast on the girder of both sides, girder and auxiliary beam is formed good force structure, for supporting above them
Pedal, pedal and auxiliary beam are plate-like, can effectively reduce the dosage of concrete, reduce space occupancy rate.
Stringer type stairway is not easy cast in situs, particular manufacturing craft provided by the utility model improves compared with cranked slab stairs structure-rich
Stringer type stairway pours efficiency, is encircled a city two kinds of die cavitys with upper die and lower die and side form, and one kind is to be formed between upper die and lower die to pour
The die cavity of step unit to be built, the die cavity for pouring girder is formed between side form and upper mould, the die cavity of both sides connects with the die cavity of centre,
By in concreting die cavity, process is smooth, forms stringer type stairway, reduces stringer type stairway shaping difficulty.
In order to which that further improves particular manufacturing craft pours efficiency, it is dynamic that several hydraulic cylinders etc. can be installed on particular manufacturing craft
Power apparatus, process auxiliary drive side form, upper mould move, and improve the automaticity of particular manufacturing craft.
In view of in casting process, in order that concrete is uniformly filled in die cavity, it is necessary to concrete is shaken, therefore, can be
Shaking device is installed on the bottom surface of lower mould, so improves and pours efficiency and pouring quality.
Brief description of the drawings
Fig. 1 is the three-dimensional reference chart of existing cranked slab stairs, and the bottom surface for illustrating cranked slab stairs is complete inclined-plane.
Fig. 2 is the three-dimensional reference chart of stringer type stairway.
Fig. 3 is the sectional view of some step units in Fig. 2, for illustrating the syntagmatic of pedal and auxiliary beam.
Fig. 4 is the stereochemical structure reference chart of particular manufacturing craft, for aiding in illustrating the position relationship of each several part.
Fig. 5 is a planar structure reference chart of particular manufacturing craft, is merely to illustrate each several part position relationship, it is impossible to be used in limit
The structure of fixed each part.
The structural reference figure that it is also particular manufacturing craft that Fig. 6, which is, it is on the basis of Fig. 5, upper mould is opened into certain angle, is used for
Combined with Fig. 5, illustrate action and the structure of particular manufacturing craft.
Fig. 7 is in the cross section of upper die and lower die and side form, the reference chart of their relative position relations, is only schematically illustrated
The position relationship of die cavity.
Fig. 8 is the reference chart of dependency structure and position relationship under the vertical view visual angle of particular manufacturing craft.
Fig. 9 is the structural reference figure of the one embodiment for holding mould.
Reference
101 step units, 102 bottom surfaces；
201 pedals, 202 auxiliary beams, 203 girders；
301 axles, 302 ribs, mould on 303,304 side forms, 305 end moulds, 306 times moulds, 307 projections,
308 die cavitys, 309 projections, 310 die cavitys, 311 horizontal strip shape gobs, 312 plates, 313 plates, 314 arms.
Embodiment
The utility model is elaborated with reference to the accompanying drawings and examples.
Such as Fig. 2, girder is formed in the both sides of stair, such as girder 203, one group of step unit, platform are formed above two girders
Rank unit includes pedal 201 and auxiliary beam 202, and with reference to Fig. 3, pedal 201 and auxiliary beam 202 are plate-like.Pedal 201 and auxiliary beam 202
Both ends are cast on the girder of both sides, and the outer rim of pedal 201 is supported on auxiliary beam 202.Auxiliary 201 perpendicular knot of beam 202 and pedal
Structure, after stair are installed on stair, it is in 202 vertical states to ensure auxiliary beam, and pedal 201 is horizontal.One protrusion of this stair
Feature is that girder, auxiliary beam and pedal formed by integrally casting form, and has good mechanical property, improves stair and pour efficiency.
In order to realize above-mentioned stair formed by integrally casting, the utility model also provides a kind of particular manufacturing craft for pouring stair, with reference to
Fig. 4 and Fig. 5, it includes mould 303, lower mould 306 and two side forms (such as side form 304), equal shape on the opposite face of upper die and lower die
Into some jagged projections, such as Fig. 5, a projection 307 of the upper lower section of mould 303, a projection 309 of the lower top of mould 306, dash forward
309 and the staggeredly cooperation of projection 307 are played, make to form die cavity 308 between projection 309 and projection 307, so all upper moulds 303 are with
Protrusions match between mould 306, complete die cavity is formed, the die cavity is used to pour the step units of stair, in order to pour and platform
The integrally formed girder of rank unit, such as Fig. 7 and Fig. 8, by taking side form 304 as an example, die cavity is formed between side form 304 and upper mould 303
310, die cavity 310 connects with die cavity 308.Top such as Fig. 7 die cavitys 310 be it is unlimited, can direct casting concrete, die cavity 308
Top is upper mould, and for the ease of direct casting concrete, such as Fig. 8 from upper mould, several horizontal bar shapeds are preset on upper mould 303
Mouth 311, horizontal strip shape gob 311 is the entrance to the casting concrete of die cavity 308.
With reference to Fig. 4, Fig. 6 and Fig. 7, side form 304 should at least have a compressive plane, for forming phase with upper die and lower die
Answer die cavity, the compressive plane on side form 304 can be compressive plane that side form 304 possesses itself (in one that such as platy structure is formed
Side), but should also be as including such a structure, it is exactly that side form 304 is basic framework, according to practice of construction needs, by band
There are the structures such as the tabular of compressive plane to be assembled on side form 304.
Side form is preferably hinged on the die holder of lower mould 306 (with reference to figure 4 and Fig. 7), such side form can stablize in lower mould
Rotated on 306, the structure possesses two benefits, first, the side form top edges of both sides is connected, can realize to the good of two side forms
Good fixed, operation is succinct, and two are easy for being stripped, and with devices such as hydraulic pressure using side form top edge as impetus, force struts.In addition,
In order to improve the fastness of side form, on the outer surface of side form using welding etc. mode fix some reinforcements, effectively avoid because
The excessive risk (such as Fig. 4) for causing side form to deform upon of dynamics, improve the security of whole mould.Such as Fig. 7 and Fig. 8, side form and
The die cavity (such as die cavity 310) for pouring girder is surrounded between upper mould, die cavity 310 should determine its chi according to actual practice of construction needs
It is very little.
In fact, a baffle plate can also be formed on upper mould 303, for forming the upper top surface of die cavity 310, and in baffle plate
Upper reserve pours mouth, and the program should be understood to the equivalent of this programme, fall into the scope of this patent.But consider girder
Shaping situation, the top of die cavity 310 can be arranged to Open architecture completely, after the completion of pouring, then carry out smooth.
On the top and bottom and left and right face of die cavity, there are upper die and lower die and side form to surround respectively, in practice, the both ends of die cavity are
Unlimited, in casting process, have part concrete and overflowed from the both ends of die cavity, cause stair both ends not smooth enough, so as to shadow
Ring stair shaping.Certainly, it is contemplated that the opening size at die cavity both ends is smaller, and processing can be also polished by the later stage, but in order to carry
High yield quality and efficiency is poured, such as Fig. 4, Fig. 5, Fig. 6 and Fig. 8, difference installation end mould 305, holds mould at the both ends of upper mould 303
305 effect is for blocking the gap at die cavity both ends, and holds mould 305 to be easy to be stripped.Just because of this, such as Fig. 9, mould is held
305 may be designed to platy structure, exactly including two two plates 312 for being used to block girder die cavity, and for blocking step list
The plate 313 of first die cavity, two plates 312 are separately fixed at the both ends of plate 313, form overall structure.Plate 312 is fixed on arm 314 below
On, arm 314 is hinged on the die holder of lower mould 306.Here the articulated structure of arm and die holder, it is design meanses commonly used in the art,
Repeat no more.Need to design it should be noted that the structure of arm should coordinate according to plate with die cavity end clearance, should at least make
Plate has good sealing with gap, and makes terminal mould for good turn over function.
Upper mould is the core component of this patent, its structure design and open-close ways, and stair moulding process and quality are produced
Material impact.Such as Fig. 6, upper mould 303 be made up of two parts (marked in Fig. 6 be upper mould left half), the key structure of upper mould
It is projection 307, projection 307 is serrated, and as the projection 309 on lower mould, should have good hardness, guarantee pours building
The structure of ladder.Because the size of upper mould is larger, in order to smoothly realize the matched moulds of upper mould and die sinking, such as Fig. 6, the left and right of upper mould 303
Two-part outboard end is respectively hinged on the die holder of lower mould, so can be by the power-equipment such as drive a vehicle, the activity of mould in suspension
End opens it or fastened.If Fig. 5 is the state reference map that upper mould closes, Fig. 6 is the state reference that upper mould opens an angle
Figure.
With reference to Fig. 4 and Fig. 8, exemplified by a part of above mould 303, the free end in the part installs an axle 301, axle
301 are supported on the rib 302 at both ends, and rib 302 is fixed on the die holder of lower mould, and rib 302 is located at the outside of side form, but will and side form
Appropriate distance is kept, avoids influenceing the side form upset demoulding.Rib 302 should firmly support shaft 301, while axle 301 is locked together in
Thereon, mould 303 is stably fixed to target location, and die cavity is formed between lower mould.In order to increase the overall jail of upper mould
Solidity, as shown in figure 4, may also set up some reinforcements on upper mould 303.Upper mould can also be integrative-structure, and be filled with hydraulic pressure
Put overall lifting and landing, the lifting machine used during similar auto repair.The hydraulic means integral installation of mould is under in the lifting
On the die holder of mould, particular manufacturing craft is set to be easier to manipulate.
In addition, the utility model patent can also set a vibrating device, for shaking particular manufacturing craft, make coagulation
The full and uniform filling die cavity of soil, improves stair pouring quality.
Using this particular manufacturing craft, manufacturing the construction procedure of stringer type stairway is：
With the rope suspensions of driving on the free end of the left half of upper mould, left half is opened, the same manner opens upper mould
Right half；The reinforcing bar of establishment is placed on lower mould, two parts and two side forms, formation for fastening upper mould successively pour mould
Chamber；
The joints cement concrete into die cavity, cement concrete is shaken, cement concrete is full of die cavity, then it is smooth from mould
The cement concrete of intracavitary extrusion；
First make the cement concrete solidification of the interior shaping of die cavity, then movable two side forms and upper mould, make side form and upper mould with coagulating
Solid cement concrete surface separation, finally take out the prefabricated stringer type stairway of shaping.
Prefabricated stringer type stairway is the 70% of common cranked slab stairs deadweight, effectively reduces the influence to agent structure from heavy and light,
Geological process power is smaller.Prefabricated stringer type stairway effectively utilizes the rigidity of pedal, forms major-minor beam type stress, and mechanics principle is clear,
Force path is succinct, and lifting is convenient, because it can not limited from heavy and light by on-site hoisting condition substantially, can in particular cases adopt
Handled with prefabricated stringer type stairway.Prefabricated stringer type stairway location and installation is convenient and reliable, reduces worker scene formwork and ties up reinforcing bar and pours
The trouble of concrete, efficiency of construction is greatly improved, shorten the duration, stair convenient transportation, because transport can be improved from heavy and light
Efficiency, reduces cost of transportation, prefabricated stringer type stairway cost (about 1600 yuan/run) less than common Prefabricated slab type stair (about 1800 yuan/
Run), remained basically stable with cast-in-situ stair (about 1550 yuan/run).
Claims (9)
- A kind of 1. prefabricated stringer type stairway, it is characterised in that a pair of the girders to be played a supportive role including arranged on left and right sides, and it is some The step unit being arranged in order, step unit include pedal and auxiliary beam, and pedal and auxiliary beam are into platy structure, and the two of auxiliary beam and pedal End is supported and fixed on the girder of both sides, and the outer rim of pedal is also supported on auxiliary beam, and girder, auxiliary beam and pedal are coagulating cements Native formed by integrally casting shaping.
- A kind of 2. prefabricated stringer type stairway according to claim 1, it is characterised in that the perpendicular structure of the auxiliary beam and pedal.
- 3. a kind of prefabricated stringer type stairway according to claim 1 or claim 2, it is characterised in that in the girder, auxiliary beam and pedal Embedded with reinforcement.
- 4. a kind of particular manufacturing craft for manufacturing prefabricated stringer type stairway as claimed in claim 1, it is characterised in that under fixed Mould, the upper mould of activity and two turnover side forms, side form are hinged on the die holder of lower mould, and upper mould is buckled on lower mould, upper mould The die cavity for pouring the step unit is formed between lower mould, the die cavity for pouring girder is formed between side form and upper mould, both sides Die cavity and middle mould cavity.
- 5. particular manufacturing craft according to claim 4, it is characterised in that if the opposite face of the lower mould and upper mould is respectively formed on The projection of dry jagged projection, the projection of upper mould and lower mould is staggered, and forms the die cavity for pouring step unit.
- 6. particular manufacturing craft according to claim 5, it is characterised in that the position among the adjacent protrusions of the upper mould is formed The horizontal strip shape gob of cement concrete is injected into die cavity.
- 7. particular manufacturing craft according to claim 5, it is characterised in that respectively mould, end are held in installation one at the both ends of the lower mould Mould includes the plate body for smooth girder end face, and the plate body for smooth step unit end face, holds the base of mould to be hinged on On the die holder of lower mould.
- 8. particular manufacturing craft according to claim 5, it is characterised in that the upper mould is divided into two units in left and right, each upper mould The outboard end of unit is hinged on the die holder of lower mould.
- 9. particular manufacturing craft according to claim 5, it is characterised in that in two units of the side form, end mould and upper mould At least one is to use Driven by Hydraulic Cylinder, and being installed on the die holder bottom surface of the lower mould makes the shaking device that mould integrally shakes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720591754.8U CN206999248U (en) | 2017-05-24 | 2017-05-24 | A kind of prefabricated stringer type stairway and its particular manufacturing craft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720591754.8U CN206999248U (en) | 2017-05-24 | 2017-05-24 | A kind of prefabricated stringer type stairway and its particular manufacturing craft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206999248U true CN206999248U (en) | 2018-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720591754.8U Expired - Fee Related CN206999248U (en) | 2017-05-24 | 2017-05-24 | A kind of prefabricated stringer type stairway and its particular manufacturing craft |
Country Status (1)
| Country | Link |
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| CN (1) | CN206999248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117774098A (en) * | 2024-01-12 | 2024-03-29 | 浙江智造装配式建筑科技有限公司 | Horizontal die equipment for full-upturning rib beam type precast concrete stair and preparation process |
-
2017
- 2017-05-24 CN CN201720591754.8U patent/CN206999248U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117774098A (en) * | 2024-01-12 | 2024-03-29 | 浙江智造装配式建筑科技有限公司 | Horizontal die equipment for full-upturning rib beam type precast concrete stair and preparation process |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 Termination date: 20210524 |
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| CF01 | Termination of patent right due to non-payment of annual fee |