CN101823289A - Rubber mandrel - Google Patents
Rubber mandrel Download PDFInfo
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- CN101823289A CN101823289A CN 201010131279 CN201010131279A CN101823289A CN 101823289 A CN101823289 A CN 101823289A CN 201010131279 CN201010131279 CN 201010131279 CN 201010131279 A CN201010131279 A CN 201010131279A CN 101823289 A CN101823289 A CN 101823289A
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- air bag
- interlayer
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- air
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Abstract
The invention relates to a rubber mandrel, in particular to an inflated rubber mandrel for precast reinforced concrete hollow beam slabs, which comprises an air bag, a plurality of breathable interlayers with same plane shape, air inlets and air outlets, wherein the air bag is in a straight-bag shape, and the circumference of the cross section is same as that of the breathable interlayer; and the breathable interlayers are fixedly connected in the air bag in parallel, and the cross section shape of the air bag in an air saturation state is same as the plane shape of the interlayer, so that the outer surface of the air bag in an air saturation state can be used as a forming surface of the mandrel. After the rubber mandrel is inflated, the cross section shape of the air bag is limited by the plane shape of the interlayer, so that the processing requirements can be accurately met; even if the sinkage occurs, the sinkage on the axial cross section and between the two interlayers occur, and an arch shape is formed through the sinkage for a precast member, thereby, the compressive strength of the precast member can not be affected, and the structural strength of the precast member can be improved.
Description
Technical field
The present invention relates to be used for the hollow beam slab of the prefabricated reinforced concrete inflating rubber core of (cross section comprises rectangle, square, regular polygon, polygon, abnormity such as trapezoidal).
Background technology
General special-shaped inflating rubber core technology as shown in Figure 6, for making flat hexagon prefabricated component 10, used rubber mandrel comprises a middle big oval-shaped air bag 7, is respectively applied for six support angle air bags (ballonet) 8 that support each bight and the overcoat 9 that centers on six support angle air bags 8.During work, need if wherein certain air bag gas leakage because overcoat is arranged, also has contact-making surface between big ballonet, make and seek very difficulty of gas leakage point to seven airbag aerations.In addition, overcoat 9 is stretched tight by the ballonet support, and leaves between the air bag 7 and do not have the space 11 of pressure, behind the cast concrete, can cause the sinking 12 on the cross section, and the sinking 12 on this cross section can run through the axial of whole prefabricated component, influences the structural strength of prefabricated component.
Simultaneously, this kind core processing technology is loaded down with trivial details, waste material, and difficulty is big during operation, can not guarantee the reasonability of product space structure.
Summary of the invention
The present invention is directed to above problem, a kind of processing, easy to use is provided, the rubber mandrel that manufactured goods are rational in infrastructure.
Technical scheme of the present invention is: the ventilative interlayer and the air inlet/outlet that comprise air bag, several flat shape unanimities; Described air bag is straight bag shape, and perimeter of section is consistent with the girth of described ventilative interlayer; Described ventilative interlayer is fixedly connected in the air bag abreast, and air bag is consistent with the flat shape of described interlayer at the cross sectional shape of gas saturation state, makes the outer surface of the air bag of the saturation state of bringing about the desired sensation make the forming surface of described core.
Spacing is 8-50cm between described ventilative interlayer.
The present invention has adopted the air bag of a double as forming surface, meets the requirement of prefabricated component for guaranteeing air bag in gas saturated (after inflating) state lower section shape, only needs the girth of control air bag and the shape of the interlayer of inside to get final product; That is to say that when the shape of inner interlayer is certain, and girth is when identical with the air bag perimeter of section, after the inflation, the cross sectional shape of air bag is limited by the flat shape of interlayer, thereby can satisfy the requirement of processing exactly.And air bag inside is the air pressure unanimity everywhere, shown in filled arrows among Fig. 3, when ventilative interlayer spacing is reasonable, the phenomenon that big extruding is sunk generally can not occur; Even occur, also be the sinking on the axial cross section, between two interlayers, and this sinking to the prefabricated component formation be arch, not only can not influence the compression strength of prefabricated component, can promote the structural strength of prefabricated component on the contrary.
Description of drawings
Fig. 1 is a schematic perspective view of the present invention
1 is air inlet/outlet among the figure, the 2nd, and end face, the 3rd, air bag, the 4th, interlayer, the 5th, hole;
Fig. 2 is a structural representation of the present invention
6 is sinkings on the axial cross section among the figure;
Fig. 3 is an A-A cutaway view among Fig. 2
Fig. 4 is a user mode reference view of the present invention
Fig. 5 a-e is the schematic diagram of median septum cross sectional shape of the present invention
Fig. 6 is the schematic diagram of background technology among the present invention
7 is air bags among the figure, the 8th, and the support angle air bag, the 9th, overcoat, the 10th, flat hexagon prefabricated component, the 11st, there is not the space of pressure, the 12nd, the sinking on the cross section.
The specific embodiment
The present invention comprises the ventilative interlayer 4 and the air inlet/outlet 1 of air bag 3, several flat shape unanimities as Figure 1-3; Described air bag 3 is straight bag shape, and perimeter of section is consistent with the girth of described ventilative interlayer 4; Described ventilative interlayer 4 is fixedly connected in the air bag 3 abreast, and air bag 3 is consistent with the flat shape of described interlayer 4 at the cross sectional shape of gas saturation state, makes the outer surface of the air bag 3 of the saturation state of bringing about the desired sensation make the forming surface of described core.Air inlet/outlet 1 is arranged on the end face 2 of air bag.The flat shape of described interlayer 4 can be circle, octagonal, trapezoidal, trapezoidal, rectangle with vault with vault shown in Fig. 5 a-e, can also be flat hexagon, oval or the like.
For preventing 4 bigger sinkings of appearance of interlayer, the spacing that adjacent ventilative interlayer is 4 is 8-50cm, preferred 10-15cm.
Duty of the present invention is an example with the processing prefabricated component, after the inflation as shown in Figure 4, concrete has gravity at top of the present invention and presses down, cause the sinking of forming surface between two interlayers, but this sinking is the sinking 6 on the axial cross section, can be to the structural strength product harmful effect of manufactured goods.
Manufacturing process of the present invention may further comprise the steps
The interlayer blanking: the shape of this product is decided by the interlayer of inside, and interlayer has adopted high-intensity polyamide fibre canvas and the stitching of high-intensity chemical fabric forms.The section configuration of product is made polygon abnormity shape according to customer requirement, and the polyamide fibre canvas then is cut into several width of cloth, and the shape of chemical fabric is decided by the shape of product.Chemical fabric and a few width of cloth polyamide fibre canvas are stitched into one, form the special-shaped interlayer of an integral body.Whole brush coating stick on the polyamide fibre canvas.
The air bag blanking: rubber mandrel cloth (canvas filler rubber that heat cure is good) blanking becomes two width of cloth, and the blanking width is the perimeter of section of product, the whole sand milling of rubber mandrel cloth, brush coating stick.
Overall thermal pressing: after the rubber mandrel cloth of interlayer and air bag posts, enter the whole hot sticky sulfuration of Heat sealer, 155～165 ℃ of curing temperatures, cure time 25～35 minutes, sulfide stress 8～10Mpa, the integrated bond intensity height of product, long product lifecycle.
The product of this kind explained hereafter, consumptive material is few, and an air bag is added an interlayer and has been replaced an original cover multicore; Process is easy, has replaced an original cover multicore cold bonding technology with method of sewing up and overall thermal pressing technology generations, and the product strength height is saved man-hour again; The dimensional stability height, a former cover multicore, bad fixing during installation, many valves inflations, shape of product can not get guaranteeing, an existing cover one core, shape of product is good, and bonding advantage such as has firmly guaranteed the shape of prefabricated component.
The cost contrast:
With 550mm * 550mm * 16m, square rubber mandrel is that example is carried out the material cost accounting
Old technology is:
1 in overcoat, rubber mandrel cloth materials: 40m
2
Middle 1 Φ 550mm core, rubber mandrel cloth materials: 34m
2
4 the Φ 80mm cores in four sides, rubber mandrel cloth materials: 21m
2
Shared material: rubber mandrel cloth materials 95m
2,
The present invention is:
1 in air bag, rubber mandrel cloth materials: 40m
2
Each interlayer, cost are equivalent to rubber mandrel cloth materials: 12m
2
Shared material: rubber mandrel cloth materials 52m
2
The product material cost that adopts this invented technology to produce is 45% of a former technology.
Claims (2)
1. a rubber mandrel is characterized in that, comprises the ventilative interlayer and the air inlet/outlet of air bag, several flat shape unanimities; Described air bag is straight bag shape, and perimeter of section is consistent with the girth of described ventilative interlayer; Described ventilative interlayer is fixedly connected in the air bag abreast, and air bag is consistent with the flat shape of described interlayer at the cross sectional shape of gas saturation state, makes the outer surface of the air bag of the saturation state of bringing about the desired sensation make the forming surface of described core.
2. a kind of rubber mandrel according to claim 1 is characterized in that, spacing is 8-50cm between described ventilative interlayer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010131279 CN101823289A (en) | 2010-03-23 | 2010-03-23 | Rubber mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010131279 CN101823289A (en) | 2010-03-23 | 2010-03-23 | Rubber mandrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101823289A true CN101823289A (en) | 2010-09-08 |
Family
ID=42687553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010131279 Pending CN101823289A (en) | 2010-03-23 | 2010-03-23 | Rubber mandrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101823289A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552577A (en) * | 2015-01-15 | 2015-04-29 | 胡启富 | Honeycomb-simulated concrete block and die bar for production thereof |
| CN105904580A (en) * | 2015-05-29 | 2016-08-31 | 张波 | Precast concrete hollow slab die adopting rubber pipe pore forming |
| CN111139975A (en) * | 2020-02-24 | 2020-05-12 | 浙江东南网架股份有限公司 | Light steel pipe concrete structure filled with inflation pressure bar and construction method thereof |
| CN111469252A (en) * | 2020-04-17 | 2020-07-31 | 罗智 | Double-layer inflatable membrane concrete formwork system and construction method thereof |
| CN111906901A (en) * | 2020-06-28 | 2020-11-10 | 河南交院工程技术有限公司 | Concrete structure prestressed duct forming device and forming method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08326309A (en) * | 1995-06-05 | 1996-12-10 | Okamoto Ind Inc | Air tube for concrete form |
| JPH10102769A (en) * | 1996-09-27 | 1998-04-21 | Kasei Kogyo Kk | Air sleeve and its manufacture |
| CN2603830Y (en) * | 2003-01-21 | 2004-02-18 | 王孜铭 | Portable aerated heatretaining garage |
| CN2723599Y (en) * | 2004-08-28 | 2005-09-07 | 青岛吉尔工程橡胶有限公司 | Irregular rubber inflation core mold |
| CN101319532A (en) * | 2007-06-07 | 2008-12-10 | 邱则有 | Inflation mould for filling |
| CN201241477Y (en) * | 2008-03-18 | 2009-05-20 | 杨进方 | Combined core mould |
| CN201645631U (en) * | 2010-03-23 | 2010-11-24 | 江苏扬州合力橡胶制品有限公司 | Rubber core mould |
-
2010
- 2010-03-23 CN CN 201010131279 patent/CN101823289A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08326309A (en) * | 1995-06-05 | 1996-12-10 | Okamoto Ind Inc | Air tube for concrete form |
| JPH10102769A (en) * | 1996-09-27 | 1998-04-21 | Kasei Kogyo Kk | Air sleeve and its manufacture |
| CN2603830Y (en) * | 2003-01-21 | 2004-02-18 | 王孜铭 | Portable aerated heatretaining garage |
| CN2723599Y (en) * | 2004-08-28 | 2005-09-07 | 青岛吉尔工程橡胶有限公司 | Irregular rubber inflation core mold |
| CN101319532A (en) * | 2007-06-07 | 2008-12-10 | 邱则有 | Inflation mould for filling |
| CN201241477Y (en) * | 2008-03-18 | 2009-05-20 | 杨进方 | Combined core mould |
| CN201645631U (en) * | 2010-03-23 | 2010-11-24 | 江苏扬州合力橡胶制品有限公司 | Rubber core mould |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552577A (en) * | 2015-01-15 | 2015-04-29 | 胡启富 | Honeycomb-simulated concrete block and die bar for production thereof |
| CN105904580A (en) * | 2015-05-29 | 2016-08-31 | 张波 | Precast concrete hollow slab die adopting rubber pipe pore forming |
| CN111139975A (en) * | 2020-02-24 | 2020-05-12 | 浙江东南网架股份有限公司 | Light steel pipe concrete structure filled with inflation pressure bar and construction method thereof |
| CN111469252A (en) * | 2020-04-17 | 2020-07-31 | 罗智 | Double-layer inflatable membrane concrete formwork system and construction method thereof |
| CN111469252B (en) * | 2020-04-17 | 2022-03-01 | 罗智 | Double-layer inflatable membrane concrete formwork system and construction method thereof |
| CN111906901A (en) * | 2020-06-28 | 2020-11-10 | 河南交院工程技术有限公司 | Concrete structure prestressed duct forming device and forming method |
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Open date: 20100908 |