CN204252429U - Glass fibre reinforced plastic rotary formula stair - Google Patents
Glass fibre reinforced plastic rotary formula stair Download PDFInfo
- Publication number
- CN204252429U CN204252429U CN201420690481.9U CN201420690481U CN204252429U CN 204252429 U CN204252429 U CN 204252429U CN 201420690481 U CN201420690481 U CN 201420690481U CN 204252429 U CN204252429 U CN 204252429U
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- pedal
- handrail
- reinforced plastic
- center pillar
- glass fibre
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Abstract
The utility model discloses a kind of glass fibre reinforced plastic rotary formula stair, comprise pedal and handrail, described pedal is connected on center pillar, described pedal is connected by multiple column with handrail, protective screening is provided with between described handrail and center pillar top, be provided with platform between described handrail top and most upper level pedal, described platform lower end is provided with suspension hook, and described center pillar bottom is provided with junction button; The utility model has the following advantages: novel structure, and safety factor height cost of production is low, is convenient to transport and installs, not fragile.
Description
Technical field
The utility model relates to a kind of glass fibre reinforced plastic rotary formula stair.
Background technology
Glass fiber reinforced plastic (FRP) is also called GFRP, i.e. fiber-reinforced plastic, refers generally to glass fiber reinforcement unsaturated polyester, epoxy resin and phenolic resin as matrix resin.Make the reinforced plastic of reinforcing material with glass fiber or its goods, appellation is glass fiber reinforced plastics, or appellation glass fiber reinforced plastic.Because used resin variety is different, therefore there is the title of organic toughened glass, fiber glass epoxy, phenolic fiberglass reinforced plastics.Light weight and hard, non-conductive, mechanical strength is high, recycles few, corrosion-resistant.Steel manufacturing machine part and automobile, ship housing etc. can be replaced.
The advantage of glass fiber reinforced plastic is: high-strength light.Relative density, between 1.5 ~ 2.0, only have 1/4 ~ 1/5 of carbon steel, but hot strength is close, even exceedes carbon steel, and specific strength can compared with high-grade alloy steel.Therefore, at aviation, rocket, space vehicle, high-pressure bottle and need to alleviate in the product application of deadweight at other, all there is remarkable effect.The stretching of some epoxy FRP, bending and compressive strength all can reach more than 400Mpa.Corrosion-resistant.FRP is good anticorrosive material, has good resistivity to the acid of air, water and general concentration, alkali, salt and multiple oils and solvent.Be applied to the various aspects of chemical anticorrosion, replace carbon steel, stainless steel, timber, non-ferrous metal etc.Good electrical property.Be excellent insulation materials, be used for manufacturing isolator.Still good dielectricity can be protected under high frequency.Microwave transparent is good, is widely used in radome.Hot property is good.FRP thermal conductivity is low, is 1.25 ~ 1.67kJ/(mhK under room temperature), only having 1/100 ~ 1/1000 of metal, is excellent thermal insulation material.In instantaneous superhigh temperature situation, be desirable thermal protection and ablation resistant material, space vehicle can be protected more than 2000 DEG C to bear washing away of high velocity air.Designability is good.(1) as required, various infrastructure product can be designed neatly, meet instructions for use, product can be made to have good globality.(2) fully can meet the performance of product by selection material, as: can corrosion resistant be designed, resistance to TRANSIENT HIGH TEMPERATURE, product direction has special high strength, dielectricity is good, etc.Manufacturability is excellent.(1) moulding process can be selected neatly according to the shape of product, technical requirements, purposes and quantity.(2) technique is simple, can one-shot forming, and economic effect is given prominence to, especially few to quantity that is complex-shaped, not easy-formation product, its technique superiority more outstanding.
The shortcoming of glass fiber reinforced plastic is: modulus of elasticity is low.The large twice of modular ratio timber of FRP, but less than steel (E=2.1E5) 10 times, in product structure, therefore often feel that rigidity is not enough, be easily out of shape.Thin shell structures, sandwich can be made, also by high modulus fibre or do the forms such as reinforcing rib to make up.Long-term temperature tolerance is poor.General FRP can not at high temperature Long-Time Service, and general purpose polyester FRP intensity more than 50 DEG C just obviously declines, general only use 100 DEG C below; Universal epoxy FRP is more than 60 DEG C, and intensity has obvious decline.But can fire resistant resin be selected, make Long-term service temperature be possible at 200 ~ 300 DEG C.Aging phenomenon.Aging phenomenon is the common defects of plastics, and FRP is no exception, under the effects such as ultraviolet, dust storm sleet, chemical mediator, mechanical stress, easily cause hydraulic performance decline.Shear strength is low.Interlaminar shear strength is born by resin, so very low.Can, by selecting technique, using the methods such as coupling agent to improve interlayer adhesion, most importantly when product design, avoid interlayer is cut as far as possible.The production method of glass fiber reinforced plastic divides two large class, i.e. wet method contact-type and dry method extrusion formings substantially.As divided by process characteristic, there is hand pasting forming, laminated into type, RTM method, ironing, compression molding, Wrapping formed etc.Hand pasting forming comprises again hand and sticks with paste method, pressure bag method, gunite, wet paste low-pressure process and stick with paste method without mould hand.
Composite material is a kind of mixture.All play very large effect in a lot of field, instead of much traditional material.Composite material is divided into metal and metallic composite, nonmetal with metallic composite, nonmetal and nonmetallic composite by its composition.Be divided into again by its design feature: 1, fibre reinforced composites.Various fibre reinforcement is placed in matrix material and is composited.As fibre reinforced plastics, fibreglass-reinforced metal etc.2, interlayer composite material.Formed by the surfacing of different in kind and core material composition.Usual plane materiel intensity is high, thin; Core light weight, intensity are low, but have certain rigidity and thickness.Be divided into solid interlayer and honeycomb interlayer two kinds.3, fine granule composite materials.Hard particulates is uniformly distributed in matrix, as strengthened dispersion alloy, cermet etc.4, hybrid composite.Mixed by two or more wild phase material and form in a kind of matrix phase material.With common single wild phase composite material ratio, its impact strength, fatigue strength and fracture toughness significantly improve, and have special hot expansibility.Be divided into interlaminar hybrid, interlayer mix, sandwich mixes, in layer/interlayer mixes and superhybrid composite.
Most widely used with fiber reinforced material in composite material, consumption is maximum.Be characterized in that proportion is little, specific strength and specific modulus large.The such as material of carbon fiber and epoxy resin compound, its specific strength and specific modulus, all than steel and the large several times of aluminium alloys, also have the performances such as excellent chemical stability, anti-friction wear-resistant, self-lubricating, heat-resisting, endurance, resistance to creep, noise elimination, electric insulation.Graphite fibre and resin compounded can obtain coefficient of thermal expansion no better than zero material.Another feature of fiber reinforced material is anisotropy, therefore can by the arrangement of the requirement of strength design fiber of product different parts.With the aluminum matrix composite that carbon fiber and silicon carbide fibre strengthen, 500 DEG C time, still can keep enough strength and modulus.Silicon carbide fibre and titanium compound, not only the heat resistance of titanium improves, and wear-resistant, can be used as engine blower blade.Silicon carbide fibre and Ceramic Composite, serviceability temperature can reach 1500 DEG C, more much higher than the serviceability temperature (1100 DEG C) of superalloy turbo blade.Carbon-fiber reinforced carbon, graphite fibre strengthen carbon or graphite fibre strengthens graphite, forms ablation resistant material, in spacecraft, rocket-powered missile and atomic reactor.Non-metal-matrix composite due to density little, for automobile and aircraft can weight reduction, improve speed, energy conservation.The composite material flat spring be mixed with carbon fiber and glass fiber, its rigidity is suitable with the large steel sheet spring more than 5 times of weight with supporting capacity.
Utility model content
The purpose of this utility model, be to overcome above-mentioned limitation, thus provide a kind of novel structure, safety factor height cost of production is low, is convenient to transport and installs, non-damageable a kind of glass fibre reinforced plastic rotary formula stair.
The purpose of this utility model is achieved through the following technical solutions: a kind of glass fibre reinforced plastic rotary formula stair, comprise pedal and handrail, described pedal is connected on center pillar, described pedal is connected by multiple column with handrail, protective screening is provided with between described handrail and center pillar top, be provided with platform between described handrail top and most upper level pedal, described platform lower end is provided with suspension hook, and described center pillar bottom is provided with junction button.
Preferably, handrail upper surface is provided with snap close.
Preferably, pedal soffit is provided with the reinforcing rib be connected with center pillar.
Preferably, pedal is connected by boss in center pillar inside, and described boss and stiffener are bolted.
Preferably, pedal upper surface is provided with anti-slip tank.
In sum, a kind of glass fibre reinforced plastic rotary formula stair of the present utility model have the following advantages: novel structure, and safety factor height cost of production is low, are convenient to transport and install, not fragile.
Accompanying drawing explanation
Fig. 1 is main body schematic diagram of the present utility model;
Fig. 2 is armrest schematic diagram of the present utility model;
Fig. 3 is pedal connection structure schematic diagram of the present utility model;
Number in the figure: 1-pedal, 2-handrail, 3-center pillar, 4-protective screening, 5-platform, 6-suspension hook, 7-junction button, 8-snap close, 9-reinforcing rib, 10-boss, 11-stiffener, 12-bolt, 13-anti-slip tank.
Detailed description of the invention
In order to deepen understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, and this embodiment, only for explaining the utility model, does not form the restriction to the utility model protection domain.
A kind of glass fibre reinforced plastic rotary formula stair as shown in Figure 1, Figure 2 and Figure 3, comprise pedal 1 and handrail 2, described pedal 1 is connected on center pillar 3, described pedal 1 is connected by multiple column with handrail 2, protective screening 4 is provided with between described handrail 2 and center pillar 3 top, be provided with platform 5 between described handrail 2 top and most upper level pedal 1, described platform 5 lower end is provided with suspension hook 6, and described center pillar 3 bottom is provided with junction button 7.
Handrail 2 upper surface is provided with snap close 8.
Pedal 1 soffit is provided with the reinforcing rib 9 be connected with center pillar 3.
Pedal 1 is connected by boss 10 in center pillar 3 inside, and described boss 10 is connected by bolt 12 with stiffener 11.
Pedal 1 upper surface is provided with anti-slip tank 13.
The another statement of applicant, the utility model illustrates implementation method of the present utility model and apparatus structure by above-described embodiment, but the utility model is not limited to above-mentioned embodiment, namely do not mean that the utility model must rely on said method and structure could be implemented.Person of ordinary skill in the field should understand; to any improvement of the present utility model; implementation method equivalence selected by the utility model is replaced and the interpolation of step, concrete way choice etc., all drops within protection domain of the present utility model and scope of disclosure.
The utility model is not limited to above-mentioned embodiment, and all employings and the utility model analog structure and method thereof realize all modes of the utility model object, all within protection domain of the present utility model.
In sum, a kind of glass fibre reinforced plastic rotary formula stair of the present utility model have the following advantages: novel structure, and safety factor height cost of production is low, are convenient to transport and install, not fragile.
Claims (5)
1. glass fibre reinforced plastic rotary formula stair, comprise pedal (1) and handrail (2), it is characterized in that: described pedal (1) is connected on center pillar (3), described pedal (1) is connected by multiple column with handrail (2), protective screening (4) is provided with between described handrail (2) and center pillar (3) top, be provided with platform (5) between described handrail (2) top and most upper level pedal (1), described platform (5) lower end is provided with suspension hook (6), and described center pillar (3) bottom is provided with junction button (7).
2. a kind of glass fibre reinforced plastic rotary formula stair according to claim 1, is characterized in that: described handrail (2) upper surface is provided with snap close (8).
3. a kind of glass fibre reinforced plastic rotary formula stair according to claim 1, is characterized in that: described pedal (1) soffit is provided with the reinforcing rib (9) be connected with center pillar (3).
4. a kind of glass fibre reinforced plastic rotary formula stair according to claim 1, is characterized in that: described pedal (1) is connected by boss (10) in center pillar (3) inside, and described boss (10) is connected by bolt (12) with stiffener (11).
5. a kind of glass fibre reinforced plastic rotary formula stair according to claim 1, is characterized in that: described pedal (1) upper surface is provided with anti-slip tank (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420690481.9U CN204252429U (en) | 2014-11-18 | 2014-11-18 | Glass fibre reinforced plastic rotary formula stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420690481.9U CN204252429U (en) | 2014-11-18 | 2014-11-18 | Glass fibre reinforced plastic rotary formula stair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204252429U true CN204252429U (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420690481.9U Expired - Fee Related CN204252429U (en) | 2014-11-18 | 2014-11-18 | Glass fibre reinforced plastic rotary formula stair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204252429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389389A (en) * | 2014-11-18 | 2015-03-04 | 南通久盛新材料科技有限公司 | Glass reinforced fiber rotary staircase |
-
2014
- 2014-11-18 CN CN201420690481.9U patent/CN204252429U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389389A (en) * | 2014-11-18 | 2015-03-04 | 南通久盛新材料科技有限公司 | Glass reinforced fiber rotary staircase |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20191118 |