CN204879152U - Gas pipe of belt lacing - Google Patents
Gas pipe of belt lacing Download PDFInfo
- Publication number
- CN204879152U CN204879152U CN201520652634.5U CN201520652634U CN204879152U CN 204879152 U CN204879152 U CN 204879152U CN 201520652634 U CN201520652634 U CN 201520652634U CN 204879152 U CN204879152 U CN 204879152U
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- China
- Prior art keywords
- bellows
- edge
- tube
- attaching nut
- junction block
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- Expired - Fee Related
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Abstract
The utility model discloses a gas pipe of belt lacing, including bellows and junction block, the outside cover of junction block have one be used for with pipeline threaded connection's coupling nut, the one end that the junction block is located coupling nut is equipped with the first edge of turning over, the one end that coupling nut was kept away from to the junction block is equipped with the second and turns over the edge, the mouth of pipe that bellows and junction block meet is dug the formation third towards the junction block and is turned over the edge, the bellows inboard is close position that the third turned over the edge and is equipped with the annular and keeps off the shoulder, the third turns over and is equipped with ring type seal between edge and the annular fender shoulder, ring type seal's inside wall is equipped with the seal groove along its circumference, the second turns over along stretching into in the seal groove, be equipped with the recess along its circumference on ring type seal's the lateral wall, the recess intussuseption is filled with soft plastic, compared with the prior art, the utility model discloses an activity sets up the junction block between bellows and coupling nut, junction block and bellows, coupling nut junction be provided with the tensile pull with extruded sealing device, simple structure, the leakproofness is good.
Description
Technical field
The utility model relates to a kind of pipeline, and more particularly, it relates to a kind of fuel tube of belt lacing.
Background technique
Along with popularizing of the combustion gas such as rock gas, gas cooker is more and more applied, mostly need fuel tube to be connected between the connecting hose of air inlet and the suction port of gas range and seal, existing connecting head generally comprises bellows and adaptor tube, because the tube wall of bellows is very thin, generally only has about 3mm, and the pipe thickness of adaptor tube is generally 7mm, again, because more bellows is formed by connecting by arranging projection, can stretch within the specific limits and bend, and adaptor tube is fixed often, if the two is directly connected, joint easily occurs that crack causes gas leakage in use for some time, if the patent No. is many disclosed a kind of fuel tube in CN1198807 patent, wherein bellows is directly connected with nut, very easily break in the position that bellows is positioned at joint, therefore, in existing Some gases pipe, bellows and adaptor tube often adaptor tube be flexibly connected, leak gas to prevent joint, seal arrangement is equipped with in joint, in order to prevent bellows bursts or corrosion, protecting cover is arranged with outside its tube wall, the material of protecting cover is generally containing partially rigid plastic cement wiry, but in use, existing seal arrangement can not play good sealing effect, and when bellows is subject to pullling, the link position of itself and adaptor tube easily occurs that gap causes the combustion gas in pipeline to be leaked.
Model utility content
For the problem in practice, the utility model proposes a kind of fuel tube of belt lacing, concrete scheme is as follows:
A kind of fuel tube of belt lacing, comprise bellows and an adaptor tube coaxially arranged with bellows, the outside cover of described adaptor tube has an attaching nut for being threaded with pipeline, described attaching nut can the axle center of solderless wrapped connection head tube freely rotate, one end that described adaptor tube is positioned at attaching nut is provided with and turns edge towards first inside adaptor tube, described adaptor tube to extend in bellows away from one end of attaching nut and inside bellows, is provided with second and turns edge, the mouth of pipe that described bellows connects with adaptor tube is dug formation the 3rd towards adaptor tube and is turned edge, annular shoulder block is also provided with close to the 3rd position turned edge inside described bellows, described 3rd turns edge and is provided with O-ring seal between annular shoulder block, the madial wall of described O-ring seal is circumferentially with seal groove along it, described second turns edge extend in described seal groove, the outer side wall of described O-ring seal is circumferentially with groove along it, the soft plastic after compression is filled with in described groove.
Pass through technique scheme, in use, when bellows is pullled or extrude, described second turns edge can along its axial motion between annular shoulder block and the 3rd turn edge, compression O-ring seal, the power pullled or extrude be subject to by bellows is converted into the deformation of O-ring seal, in addition, in prior art, the outer wall of O-ring seal is level and smooth often and fit tightly with to be sealed, when it is squeezed, the deformation of its outer wall is continuous print, often gap is there is between outer wall and to be sealed, by arranging groove along its circumference on the sidewall of described O-ring seal, can avoid the outer side wall of lip ring produces continuous deformation, by filling soft plastic in described groove, can groove described in tensioner, play better sealing effect.
Further, described seal ring is made up of rubber.
Further, the described second direction of digging turned edge turns edge in 65 ° of settings by the second flange turned edge towards the 3rd, and what the fluting direction and second of described seal groove turned edge dig, and direction is corresponding.
By above-mentioned setting, when second to turn edge between annular shoulder block and the 3rd turn edge along its axial motion, O-ring seal and second turns edge and is more close to, and not easily produces gap.
Further, rubber ring is provided with between described adaptor tube and attaching nut.
By above-mentioned setting, can better seal when fuel tube can be made to connect with outside fuel tube.
Further, the outer wall of described bellows is coated with fire retardant jacket, one end of described fire retardant jacket abuts with attaching nut.
By arranging flame-retardant sheath, bellows can be protected not to be corroded or corrosion, extending the working life of bellows, secondly, when the combustion gas in bellows occurs to leak, also can play fire-retardant effect.
Compared with prior art, the utility model arranges adaptor tube by activity between bellows and attaching nut, the end of adaptor tube be provided with turn edge and by turn edge respectively with attaching nut and bellows clamping, seal arrangement that is anti-pull and extruding is provided with in access section, structure is simple, good airproof performance.
Accompanying drawing explanation
Fig. 1 is partial sectional view of the present utility model;
Fig. 2 is the enlarged view in A portion in Fig. 1.
Accompanying drawing mark: 1, bellows, 2, adaptor tube, 3, attaching nut, 4, first turns edge, and 5, second turns edge, 6, the 3rd turn edge, 7, annular shoulder block, 8, O-ring seal, 9, seal groove, 10, groove, 11, soft plastic, 12, rubber ring, 13, fire retardant jacket.
Embodiment
With reference to Fig. 1-2, the utility model embodiment is described further.
A kind of fuel tube of belt lacing, comprise bellows 1 and the adaptor tube 2 that arranges coaxial with bellows 1, the outside cover of adaptor tube 2 has an attaching nut 3 for being threaded with pipeline, attaching nut 3 can the axle center of solderless wrapped connection head tube 2 freely rotate, one end that adaptor tube 2 is positioned at attaching nut 3 is provided with and turns edge 4 towards first inside adaptor tube 2, adaptor tube 2 to extend in bellows 1 away from one end of attaching nut 3 and be provided with second inside bellows 1 and turns edge 5, the mouth of pipe that bellows 1 connects with adaptor tube 2 is dug formation the 3rd towards adaptor tube 2 and is turned edge 6, inside bellows 1 close to the 3rd turn edge 6 position be also provided with annular shoulder block 7, 3rd turns edge between 6 and annular shoulder block 7 is provided with O-ring seal 8, the madial wall of O-ring seal 8 is circumferentially with seal groove 9 along it, second turns edge 5 extend in seal groove 9, the outer side wall of O-ring seal 8 is circumferentially with groove 10 along it, the soft plastic 11 after compression is filled with in groove 10.
In use, seal ring can be made up of rubber, when bellows 1 is pullled or is extruded, second turns edge 5, and turn edge at annular shoulder block 7 and the 3rd can along its axial motion between 6, compression O-ring seal 8, the power pullled or extrude be subject to by bellows 1 is converted into the deformation of O-ring seal 8, in addition, in prior art, the outer wall of O-ring seal 8 is level and smooth often and fit tightly with to be sealed, when it is squeezed, the deformation of its outer wall is continuous print, often gap is there is between outer wall and to be sealed, by arranging groove 10 along its circumference on the sidewall of O-ring seal 8, can avoid the outer side wall of lip ring produces continuous deformation, by filling soft plastic 11 in groove 10, can tensioner groove 10, preferably, soft plastic 11 loading groove 10 in before first can be frozen compression, be housed to after in groove 10 because temperature raises, volumetric expansion, soft plastic 11 tensioner groove 10, play better sealing effect.
5 are turned edge when annular shoulder block 7 and the 3rd to turn edge between 6 along its axial motion in order to make second, O-ring seal 8 and second turns edge and 5 to be more close to, not easily produce gap, second turn edge 5 dig direction by second turn edge 5 flange to turn edge 6 at 45 ° or 65 ° of settings towards the 3rd, be preferably 65 °, the fluting direction and second of seal groove 9 turn edge 5 to dig direction corresponding.
Better can seal when connecting with outside fuel tube to make fuel tube, between adaptor tube 2 and attaching nut 3, being provided with rubber ring 12.
Further optimization, the outer wall of bellows 1 is coated with fire retardant jacket 13, one end of fire retardant jacket 13 abuts with attaching nut 3.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and 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 (5)
1. the fuel tube of a belt lacing, comprise bellows and an adaptor tube coaxially arranged with bellows, the outside cover of described adaptor tube has an attaching nut for being threaded with pipeline, described attaching nut can the axle center of solderless wrapped connection head tube freely rotate, one end that described adaptor tube is positioned at attaching nut is provided with and turns edge towards first inside attaching nut, it is characterized in that: described adaptor tube to extend in bellows away from one end of attaching nut and inside bellows, is provided with second and turns edge, the mouth of pipe that described bellows connects with adaptor tube is dug formation the 3rd towards adaptor tube and is turned edge, annular shoulder block is also provided with close to the 3rd position turned edge inside described bellows,
Described 3rd turns edge and is provided with O-ring seal between annular shoulder block, and the madial wall of described O-ring seal is circumferentially with seal groove along it, and described second turns edge extend in described seal groove;
The outer side wall of described O-ring seal is circumferentially with groove along it, in described groove, is filled with soft plastic.
2. the fuel tube of belt lacing according to claim 1, is characterized in that: described O-ring seal is made by by rubber.
3. the fuel tube of belt lacing according to claim 2, is characterized in that: the described second direction of digging turned edge turns edge in 65 ° of settings by the second flange turned edge towards the 3rd, and what the fluting direction and second of described seal groove turned edge dig, and direction is corresponding.
4. the fuel tube of belt lacing according to claim 3, is characterized in that: be provided with rubber ring between described adaptor tube and attaching nut.
5. the fuel tube of belt lacing according to claim 1, is characterized in that: the outer wall of described bellows is coated with fire retardant jacket, and one end of described fire retardant jacket abuts with attaching nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520652634.5U CN204879152U (en) | 2015-08-27 | 2015-08-27 | Gas pipe of belt lacing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520652634.5U CN204879152U (en) | 2015-08-27 | 2015-08-27 | Gas pipe of belt lacing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204879152U true CN204879152U (en) | 2015-12-16 |
Family
ID=54823524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520652634.5U Expired - Fee Related CN204879152U (en) | 2015-08-27 | 2015-08-27 | Gas pipe of belt lacing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204879152U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654760A (en) * | 2017-10-04 | 2018-02-02 | 英立（江苏）机电有限公司 | A kind of PE gas pipelines with anti-flaming function |
| CN109091898A (en) * | 2018-09-30 | 2018-12-28 | 温州家旺轻工机械有限公司 | A kind of spherical concentrator |
| CN111828757A (en) * | 2019-10-24 | 2020-10-27 | 安徽巢湖路桥建设集团有限公司 | Corrugated pipe device |
-
2015
- 2015-08-27 CN CN201520652634.5U patent/CN204879152U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654760A (en) * | 2017-10-04 | 2018-02-02 | 英立（江苏）机电有限公司 | A kind of PE gas pipelines with anti-flaming function |
| CN109091898A (en) * | 2018-09-30 | 2018-12-28 | 温州家旺轻工机械有限公司 | A kind of spherical concentrator |
| CN111828757A (en) * | 2019-10-24 | 2020-10-27 | 安徽巢湖路桥建设集团有限公司 | Corrugated pipe device |
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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: 20151216 Termination date: 20190827 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |