CN2079217U - Reinforced fibreglass back board - Google Patents
Reinforced fibreglass back board Download PDFInfo
- Publication number
- CN2079217U CN2079217U CN 90219308 CN90219308U CN2079217U CN 2079217 U CN2079217 U CN 2079217U CN 90219308 CN90219308 CN 90219308 CN 90219308 U CN90219308 U CN 90219308U CN 2079217 U CN2079217 U CN 2079217U
- Authority
- CN
- China
- Prior art keywords
- backboard
- useful
- fibreglass
- utility
- model
- 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.)
- Withdrawn
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Abstract
The utility model relates to a reinforced fibreglass back board which is mine roadway support articles which are a metal support back slope and a roof reinforced back board; a wire frame is knit by warp threads and weft threads; the back is covered with fibreglass cloth which is bonded by resin; The weft threads adopt steel reinforcements or a fibreglass bundles, and the weft threads adopt fibreglass bundles. The utility model has the advantages of anticorrosion, duration, and light weight, and the support by the utility model does not leak coals, stones and fillers.
Description
The utility model relates to a kind of mine underworkings metallic support back of the body nation and protects very useful backboard, belongs to the mine support articles for use.
The colliery roadway is promoted the metallic support supporting already, but still carries on the back nation and protect topping material with works such as plank, the twigs of the chaste tree or bamboo basketries, and these strengths of materials are little, apt to rot, often cause roof fall between frame, push over support, even personal injury occurs.Like this, just can not bring into play the superiority of metallic support, still easily cause roadway surrouding rock deformation, loosening and destruction.In order to keep the safety in production, then must often change backboard, cause the waste of manpower and materials.Metal sheet, wire lath, cement board, the plastic wire developed are at present made backboard, though bigger than above-mentioned material intensity, not solve and leak coal, leak cash, leak filler and problem such as perishable.
The purpose of this utility model is a kind of intensity height of design, and is in light weight, do not leak coal, cash and filler, corrosion-resistant, the metallic supports in galleries backboard that the life-span is long.
Solution of the present utility model is: this backboard is made parallel with reinforcing bar or glass fiber bundle, is compiled into rack with bifilar glass fiber bundle as warp, and resin pickup solidifies back multiple one to the layer glass cloth, with resin-bonded and pressurization it is fixed on the rack.Backboard parallel two ends should be 90 ° of crotches, so that carry out the hook knot with support.
Because this glass fiber reinforced plastic backboard does not have the space, smooth surface so do not leak coal, cash and filler, can keep the tunnel health to help ventilating.The backboard material therefor is at the guaranteed strength height, corrosion-resistant, under life-span length, the non-ageing condition, its weight significantly is lower than metal, cement backboard, so not only alleviated working strength of workers, and the backboard that the plank lagging that must change with cracky and the twigs of the chaste tree, bamboo basketry etc. are done relatively, and the road maintenance amount significantly reduces.
Fig. 1: master of the present utility model looks schematic diagram
Fig. 2: schematic side view of the present utility model
Provide embodiment below:
This glass fiber reinforced plastic backboard is selected for use less than the synthetic roving of 20 μ M alkali-frees or medium-alkali glass fibre, synthetic glass fiber bundle then, and its diameter can be divided into 4 millimeters, 8 millimeters, 10 millimeters.Select for use the glass fiber bundle of different-diameter to make warp (2) respectively according to the different size of required backboard, the available reinforcing bar of parallel (1) is woven into rack, afterwards with resin dip-coating setting.The back of the body multiple one is to layer glass cloth (3) on the rack of finishing, and the bonding of resinizing and pressurization are fixed on the rack it, and resinizing at another side is the utility model glass fiber reinforced plastic backboard again.Mesh is 100 * 100 millimeters.Backboard parallel (1) two ends should curve 90 ° crotch, so that backboard and support connect.Contain antistatic additive graphite and fire retardant zinc oxide in the used resin material of this backboard, can satisfy the requirement of MT113-85 " underground mine use nonmetal (polymer) goods security performance inspection specification ".
Claims (5)
1, a kind of mine underworkings metallic support back of the body nation and protect very useful backboard is characterized in that the useful warp of this backboard, parallel are woven into rack, the multiple glass fabric of the rack back of the body, and fixed the forming of resinizing.
2, metallic support according to claim 1 is carried on the back nation and is protected very useful backboard, it is characterized in that said parallel adopts reinforcing bar, and warp adopts glass fiber bundle.
3, metallic support according to claim 1 is carried on the back nation and is protected very useful backboard, it is characterized in that said parallel, warp all adopt glass fiber bundle.
4, carry on the back nations and protect very useful backboard according to claim 2 or 3 described metallic supports, it is characterized in that the diameter of said glass fiber bundle is divided into 4 millimeters, 8 millimeters, 10 millimeters.
5, metallic support according to claim 1 is carried on the back nation and is protected very useful backboard, it is characterized in that said parallel two ends should curve 90 ° crotch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90219308 CN2079217U (en) | 1990-11-17 | 1990-11-17 | Reinforced fibreglass back board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90219308 CN2079217U (en) | 1990-11-17 | 1990-11-17 | Reinforced fibreglass back board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2079217U true CN2079217U (en) | 1991-06-19 |
Family
ID=4898000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90219308 Withdrawn CN2079217U (en) | 1990-11-17 | 1990-11-17 | Reinforced fibreglass back board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2079217U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049386C (en) * | 1991-12-19 | 2000-02-16 | 何荣潮 | Glass steel-magnesite concrete compounded support material for mining well |
| CN1939972B (en) * | 2005-09-30 | 2010-05-05 | 许隆嘉 | Supporting reinforcement board and its production |
-
1990
- 1990-11-17 CN CN 90219308 patent/CN2079217U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049386C (en) * | 1991-12-19 | 2000-02-16 | 何荣潮 | Glass steel-magnesite concrete compounded support material for mining well |
| CN1939972B (en) * | 2005-09-30 | 2010-05-05 | 许隆嘉 | Supporting reinforcement board and its production |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |