CN2246229Y - Ventilation pipe made of plastisized chemical fibre cloth - Google Patents
Ventilation pipe made of plastisized chemical fibre cloth Download PDFInfo
- Publication number
- CN2246229Y CN2246229Y CN94223179U CN94223179U CN2246229Y CN 2246229 Y CN2246229 Y CN 2246229Y CN 94223179 U CN94223179 U CN 94223179U CN 94223179 U CN94223179 U CN 94223179U CN 2246229 Y CN2246229 Y CN 2246229Y
- Authority
- CN
- China
- Prior art keywords
- plastic
- cloth
- chemical fabric
- buttonhole selvage
- selvage
- 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 - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0254—Ducting arrangements characterised by their mounting means, e.g. supports
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model relates to an improved ventilation hose used for the construction of underground engineering, the improved ventilation hose is composed of a long and circular plastic-coated chemical fabric tube body which is surrounded by selvages in an overlapping mode through a thermoplastic welding method and a hanging selvage whose cross section is in a T shape and which is welded on the tube body in the longitudinal direction. The utility model has the same air leakage preventing performance as air tubes made of steel and has the advantages of high pressure resistant performance and long service life.
Description
The utility model relates to the engineering construction articles for use, particularly a kind of pneumatic hose that is used for the underground engineering construction ventilation.
In build is grown apart from work progresss such as tunnel, tunnel and pit minings, adopted the heavy caliber pneumatic hose to ventilate.Used pneumatic hose is with cotton or the involutory buttonhole selvage that folds of glass fiber cloth, pricks 4-6 bar suture with the forestry sewing machine along flanging, forms the oval pipe of band buttonhole selvage, but cloth cover coated plastics etc.This vent hose made from lockstitch though certain applicability is arranged, exists pinprick to leak out, and suture is easily mould disconnected, suture problem such as easily break, thereby compressive strength is low, and working life is short, and influence is promoted the use of.
The purpose of this utility model provides that a kind of air leak rate of air curtain is low, the underground engineering construction vent hose of good pressure-resistant performance, long service life.
For finishing the pneumatic hose that is used for the underground engineering construction ventilation that goal of the invention designs, form by the buttonhole selvage on body and the body, body is the long garden pipe that surrounds with all plastic-faced chemical fabric in two sides, its seam mode is that selvedge overlaps up and down, the overlap edge interlayer has been the plastic coating of adhesive effect, buttonhole selvage be with the plastic-coated chemical fibre folded, glued identical with the body material become cross section be " on " shape rectangular, the base of " ⊥ " shape buttonhole selvage vertically is flattened on the body, be the plastic coating of adhesive effect therebetween, the suspension ring that are provided with have at interval been arranged on the stile of " ⊥ " shape buttonhole selvage.This is matrix with two-sided plastic-coated chemical fabric, adopts the anti-performance of leaking out of the vent hose of overlap joint glued construction to be as good as with the steel airduct, and withstand voltage properties is much higher than existing pneumatic hose, and working life is also long.
Plastic-coated chemical fabric as the body material can be a long filament polyster fibre reinforced plastic cloth, but preferably selects PVC polyvinyl plastic cement canvas for use.Damage for fear of buttonhole selvage, the suspension ring on the buttonhole selvage stile can adopt steel broadside Peng Quan.
Embodiment describes the utility model below in conjunction with accompanying drawing.
Fig. 1 is the utility model embodiment vent hose cross sectional representation.
As shown in Figure 1, the body of pneumatic hose overlaps with three width of cloth PVC polyvinyl plastic cement canvas, be the selvedge of cloth 3 and the cloth edge lap of cloth 1, the selvedge of cloth 1 again with the cloth edge lap of cloth 16, the selvedge of cloth 16 surrounds oval pipe with the cloth edge lap of cloth 3 again, during overlap joint, hot sewing machine is blown into hot air between the selvedge of overlap joint, exert pressure inside and outside selvedge simultaneously, the PVC plastic coating between the overlap edge just merges, and becomes the firm and tight bonding layer 2 and 17 of the two-layer selvedge of bonding.PVC polyvinyl plastic cement canvas strips is folding, and with cloth 6 and cloth 9, cloth 11 and cloth 13, and cloth 9 and the PVC coating of cloth 11 fusions of exerting pressure makes and forms bonding layer 8,12 and 10 therebetween with above-mentioned thermoplastic weldering method, the standing of buttonhole selvage.Again with the cloth 5 of buttonhole selvage and 15 and the PVC coating of the selvedge 1 of cylindrical shell merge to exert pressure and form bonding layer 2, on the stile of buttonhole selvage, roll hole 14 at last with the spacing of 400cm, load onto the fluffy circle 6 of the wide ring of steel.Such vent hose, available joint winding on demand lengthening, single-unit length can reach 20-50 rice, and its tensile strength warp-wise is 1800N/5cm, and broadwise is 1100N/5cm, specific elongation 21.0%, withstand voltage properties 0.02MPa, usability is fine.
Claims (2)
1, plastic-coated chemical fabric ventilation duct, form by the buttonhole selvage on body and the body, the body that it is characterized in that said pneumatic hose is the long garden pipe that surrounds with all plastic-faced chemical fabric in two sides, its seam is that selvedge overlaps up and down, it between the overlap edge plastic coating of adhesive effect, the cross section of said buttonhole selvage is " " shape, form with the plastic-coated chemical fabric folded, glued identical with the body material, the base of " " shape buttonhole selvage is flattened on the body, be the plastic coating of adhesive effect therebetween, the suspension ring that are provided with have at interval been arranged on the stile of said buttonhole selvage.
2, plastic-coated chemical fabric ventilation duct according to claim 1 is characterized in that the suspension ring on the stile of said buttonhole selvage are the wide ring of steel Peng Quan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94223179U CN2246229Y (en) | 1994-10-05 | 1994-10-05 | Ventilation pipe made of plastisized chemical fibre cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94223179U CN2246229Y (en) | 1994-10-05 | 1994-10-05 | Ventilation pipe made of plastisized chemical fibre cloth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2246229Y true CN2246229Y (en) | 1997-01-29 |
Family
ID=33836963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94223179U Expired - Fee Related CN2246229Y (en) | 1994-10-05 | 1994-10-05 | Ventilation pipe made of plastisized chemical fibre cloth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2246229Y (en) |
-
1994
- 1994-10-05 CN CN94223179U patent/CN2246229Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |