CN205226660U - Ventilation flexible tube - Google Patents
Ventilation flexible tube Download PDFInfo
- Publication number
- CN205226660U CN205226660U CN201520884510.XU CN201520884510U CN205226660U CN 205226660 U CN205226660 U CN 205226660U CN 201520884510 U CN201520884510 U CN 201520884510U CN 205226660 U CN205226660 U CN 205226660U
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- China
- Prior art keywords
- vent hose
- groove
- hose according
- fixed bed
- fixed groove
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Abstract
The utility model discloses a ventilation flexible tube, its including the body that sets gradually, and the cladding at fixed bed, heat preservation and the external coating of the outer wall of body, external coating covers the periphery at the heat preservation, the heat preservation covers the periphery at the fixed bed, characterized in that: be equipped with spiral recess towards the inner wall of body in the fixed bed, the recess is embedded to have the fixed slot that the opening orientation is the same, fixed slot and recess perfect fitting, and the fixed slot is embedded to have the spiral steel wire who is spiral setting, and spiral steel wire's pitch equals the pitch of fixed slot, the utility model discloses can prevent effectively that the spiral steel wire axial from shifting, borrow this intensity of having guaranteed this ventilation flexible tube.
Description
Technical field
The utility model relates to the pipeline of air-conditioning and ventilation system, more relates to a kind of vent hose.
Background technique
Along with the universal and application of flexible thermal insulation air pipe in worldwide, a lot of defects of existing flexible thermal insulation air pipe also reveal.
In prior art, thermal insulation wind pipe places spiral wire usually in airduct, but spiral wire, easily at body superior displacement, causes body intensity to reduce.
In view of this; publication number is disclose a kind of two-sided aluminium case composite glass fiber cloth vent hose in the patent document (documents 1) of CN2534450Y; it comprises the external protection that distributes successively, thermal insulation layer, glass fiber cloth fixed bed, spiral wire and inner protective layer composition; and inside and outside protective layer shortens one in port position; wherein; spiral wire is wrapped between inner protective layer and thermal insulation layer, and spiral wire is fixed on glass fiber cloth fixed bed.
In product disclosed in documents 1, this spiral wire is mainly used in the intensity improving vent hose, and documents 1 utilizes bonding mode or utilize artificial sewing machine to carry out sewing to be fixed on fire-resistant tarpaulin.But, because the area of contact of spiral wire and glass fiber cloth fixed bed is too small, cause the constant intensity of glass fiber cloth fixed bed unstable, long-time the two-sided aluminium case composite glass fiber cloth vent hose provided in documents 1 is provided after, spiral wire can be caused with two-sided aluminium case composite glass fiber cloth vent hose still to produce displacement along its axial direction.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of vent hose that can effectively prevent spiral wire axially displaced.
For achieving the above object, the utility model provides following technological scheme:
A kind of vent hose; it comprises the fixed bed of the body set gradually and the outer wall being coated on body, thermal insulation layer and external protection; described external protection covers the periphery of thermal insulation layer; described thermal insulation layer covers the periphery of fixed bed; spiral groove is provided with towards the inwall of body in described fixed bed; described groove is fixed with the identical fixed groove of opening direction; described fixed groove coordinates completely with groove; described fixed groove is embedded with the spiral wire that helically formula is arranged, and the pitch of described spiral wire equals the pitch of fixed groove.
Be set to further: the tapered setting in cross section of fixed groove, the small end of the fixed groove of the tapered setting in cross section is set to opening end, and it is towards body.
Be set to further: the surface of described spiral wire is provided with some separate projections.
Be set to further: the surface of described projection is provided with anti-slip veins.
Be set to further: described fixed bed and external protection shorten one in port position, and by aluminium alloy plate and port position pressing.
Be set to further: described fixed bed is made up of glass fiber cloth.
Be set to further: described external protection is worked out by the glass fibre fire line with silica-gel coating.
Be set to further: described inboard wall of tube body is pasted with inner protective layer,
Be set to further: described inner protective layer is made up of the glass fibre flameproof textile with silica-gel coating.
Pass through technique scheme, with the fixed groove of the groove fit in fixed bed, and fixed groove is embedded with spiral wire, again because fixed groove is the same with groove, helically formula is arranged, in the utility model, just can increase the intensity being arranged at fixed bed further groove by fixed groove, in addition, by coordinating between groove with fixed groove, fixed groove limits the axial motion of spiral wire, namely prevents spiral wire to walk, and ensure that the intensity of vent hose.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model preferred embodiment;
Fig. 2 is the sectional view in A-A face in Fig. 1;
Fig. 3 is the enlarged view in B portion in Fig. 2;
Fig. 4 is the enlarged view in C portion in Fig. 3;
Fig. 5 is the structural representation of spiral wire in preferred embodiment;
Fig. 6 is the enlarged view in D portion in Fig. 5.
In figure: 1, external protection; 2, thermal insulation layer; 3, fixed bed; 4, spiral wire; 5, fixed groove; 6, body; 7, inner protective layer; 8, groove; 9, protruding; 10, anti-slip veins.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further, these embodiments should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen within the application's claims limited range.
Shown in composition graphs 1; the vent hose mentioned in the present embodiment has multi-layer structure; shown in composition graphs 2 and Fig. 3, this vent hose is inwardly provided with external protection 1, thermal insulation layer 2, fixed bed 3, spiral wire 4 and body 6 successively from the periphery of himself, wherein; body 6 can select soft material to make; such as fire-resistant tarpaulin also can be glass fibre flameproof textile, in addition; in this city example, body 6 is cylindrically arranged.
Shown in composition graphs 2 and Fig. 3, fixed bed 3 can select glass fiber cloth to make, the fixed bed 3 covering body 6 outer surface is provided with groove 8, and this groove 8 is arranged in the shape of a spiral, and its opening is towards body 6, in addition, this groove 8 is embedded with the opening direction fixed groove identical with it 5, this fixed groove 5 coordinates completely with groove 8, the pitch of this fixed groove 5 equals the pitch of this groove 8, this fixed groove 5 can be set to stainless steel material and make, according to Fig. 4, fixed groove 5 is embedded with the spiral wire 4 that helically formula is arranged, and the pitch of spiral wire 4 equals the pitch of fixed groove 5.
For ensureing the constant intensity of groove 8 and fixed groove 5, in the present embodiment, the cross section of groove 8
taperedly to establishput, prevent from whereby skidding off in spiral wire 4 self-retaining groove 5, effectively can increase the constant intensity between fixed groove 5 and spiral wire 4, and its small end is towards body 6, and the also tapered setting of the cross section of fixed groove 5, the outer wall of fixed groove 5 and the inwall adaptation of groove 8, and fix by modes such as bonding or welding.
In addition, for ensureing the constant intensity between fixed groove 5 and spiral wire 4, therefore according to Fig. 5 and Fig. 6, the periphery of spiral wire 4 is provided with some projections 9, and each surface of protruding 9 is provided with anti-slip veins 10, when spiral wire 4 is embedded in fixed groove 5, protruding 9 effectively can increase the constant intensity between spiral wire 4 and fixed groove 5, and, anti-slip veins 10 adds the frictional force between protruding 9 and fixed groove 5 inwall, avoid in spiral wire 4 self-retaining groove 5 and skid off, the constant intensity between spiral wire 4 and fixed groove 5 can be increased further, spiral wire 4 is prevented to walk, add the intensity of vent hose.
Again shown in composition graphs 2 and Fig. 3, the outer surface of fixed bed 3 is also coated with thermal insulation layer 2, and this thermal insulation layer 2 wraps layer 3 uniformly, the temperature of the wind of process in effective maintenance flexible pipe, in addition, this thermal insulation layer 2 material can select PEF or rubber-plastics material, can also select glass wool.
And fixed bed 3 and external protection 1 shorten one in port position, and by aluminium alloy plate and port position pressing.Effectively can improve the intensity of this vent hose.
And described external protection 1 is worked out by the glass fibre fire line with silica-gel coating.The part that this flameproof textile plays beyond by the heat of gas too high for temperature and body 6 carries out isolating and blocking, avoid this vent hose because the temperature of gas is too high and cause vent hose to be lighted, make the life of people and the complete of property to ensure, but also the temperature in this vent hose can be stoped to diffuse to the external world, thus avoid causing extraneous temperature imbalance, further make the temperature near vent hose avoid being subject to the impact of vent hose inside temperature.
In the present embodiment; also can there is further optimization; namely the inwall of body 6 is pasted with inner protective layer 7; in this city example; thermal insulation layer 2 can be made up of the glass fibre flameproof textile with silica-gel coating; the part that this flameproof textile plays beyond by the heat of gas too high for temperature and body 6 carries out isolating and blocking, and avoids this vent hose because the temperature of gas is too high and causes vent hose to be lighted, make the life of people and the complete of property to ensure.In addition, inner protective layer 7 also can by polytetrafluoroethylmaterial material, because polytetrafluoroethylmaterial material has low breathability to carbon dioxide; and it is flexible material; itself and metal key have good connectivity, can reduce the infiltration capacity of carbon dioxide, contribute to the technical requirements meeting vent hose.
Below be only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (9)
1. a vent hose; it comprises the fixed bed of the body set gradually and the outer wall being coated on body, thermal insulation layer and external protection; described external protection covers the periphery of thermal insulation layer; described thermal insulation layer covers the periphery of fixed bed; it is characterized by: in described fixed bed, be provided with spiral groove towards the inwall of body; described groove is embedded with the identical fixed groove of opening direction; described fixed groove coordinates completely with groove; described fixed groove is embedded with the spiral wire that helically formula is arranged, and the pitch of described spiral wire equals the pitch of fixed groove.
2. a kind of vent hose according to claim 1, is characterized by: the tapered setting in cross section of fixed groove, the small end of the fixed groove of the tapered setting in cross section is set to opening end, and it is towards body.
3. a kind of vent hose according to claim 1, is characterized by: the surface of described spiral wire is provided with some separate projections.
4. a kind of vent hose according to claim 3, is characterized by: the surface of described projection is provided with anti-slip veins.
5. a kind of vent hose according to claim 1, is characterized by: described fixed bed and external protection shorten one in port position, and by aluminium alloy plate and port position pressing.
6. a kind of vent hose according to claim 1, is characterized by: described fixed bed is made up of glass fiber cloth.
7. a kind of vent hose according to claim 1, is characterized by: described external protection is worked out by the glass fibre fire line with silica-gel coating.
8. a kind of vent hose according to claim 1, is characterized by: described inboard wall of tube body is pasted with inner protective layer.
9. a kind of vent hose according to claim 8, is characterized by: described inner protective layer is made up of the glass fibre flameproof textile with silica-gel coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520884510.XU CN205226660U (en) | 2015-11-07 | 2015-11-07 | Ventilation flexible tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520884510.XU CN205226660U (en) | 2015-11-07 | 2015-11-07 | Ventilation flexible tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205226660U true CN205226660U (en) | 2016-05-11 |
Family
ID=55901726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520884510.XU Expired - Fee Related CN205226660U (en) | 2015-11-07 | 2015-11-07 | Ventilation flexible tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205226660U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108146043A (en) * | 2018-02-27 | 2018-06-12 | 苏州维洛克电子科技有限公司 | A kind of complex protection structure |
-
2015
- 2015-11-07 CN CN201520884510.XU patent/CN205226660U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108146043A (en) * | 2018-02-27 | 2018-06-12 | 苏州维洛克电子科技有限公司 | A kind of complex protection structure |
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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 |
Granted publication date: 20160511 Termination date: 20181107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |