CN204879100U - Bellows pipe fitting - Google Patents
Bellows pipe fitting Download PDFInfo
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- CN204879100U CN204879100U CN201520453876.1U CN201520453876U CN204879100U CN 204879100 U CN204879100 U CN 204879100U CN 201520453876 U CN201520453876 U CN 201520453876U CN 204879100 U CN204879100 U CN 204879100U
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- bellows
- crest
- trough
- barrier layer
- layer
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Abstract
The utility model discloses a bellows pipe fitting, include that the bellows that is provided with crest and trough is outer and set up at the inside bellows inlayer of bellows skin the outer and bellows inlayer of bellows between be provided with the prevention of seepage and pass through the barrier layer, the crest inboard be provided with the strengthening rib, strengthening rib laminating be in the crest inner wall on the trough outside be provided with the steel band, steel band laminating be in the trough outer wall on, the prevention of seepage is passed through the barrier layer and is made for the polyamide, and the prevention of seepage is passed through the barrier layer and is passed through ceramic fibre binder bonding and be in the bellows inlayer on, bellows inlayer inner wall is the wave, is provided with to be spiral helicine enhancement steel wire on bellows inlayer inner wall, strengthens the steel wire laminating on bellows inlayer wave inner wall. Through crest to the bellows and trough increase bearing structure, make the bellows structure more stable, make it have better toughness, simultaneously, pass through the barrier layer through adopting the prevention of seepage, avoid the inside material of bellows to leak.
Description
Technical field
The utility model relates to a kind of bellows pipe fitting.
Background technique
Bellows refers to the tubular elastomeric sensing element connected into along folding retractable direction with collapsible wrinkle sheet.Bellows is widely used in instrument and apparatus, and predominant use is the measuring cell as pressure measuring instruments, pressure is converted to displacement or power.In order to strengthen the toughness of bellows, existing bellows usually can when crest place is arranged stiffening rib, but when bellows is stressed, trough place equally easily damages.When bellows being used for the industry such as oil, water treatment, existing bellows structure is too simple, easily occurs leakage phenomenon after Long-Time Service.Further, when bellows is used for fluid transport, liquid and bellows surface produce collides mutually, can there is larger noise.
Model utility content
The purpose of this utility model is to provide a kind of bellows pipe fitting, prior art Problems existing can be improved, by increasing supporting structure to the crest of bellows and trough, make bellows structure more stable, make it have better toughness, meanwhile, by adopting impermeable barrier layer, bellows interior content leaks is avoided.
The utility model is achieved through the following technical solutions:
A kind of bellows pipe fitting, comprises the bellows skin being provided with crest and trough and the bellows internal layer being arranged on the outer inside of bellows, between described bellows skin and bellows internal layer, is provided with impermeable barrier layer;
Be provided with stiffening rib inside described crest, described stiffening rib is fitted on described crest inwall, has steel band in described trough arranged outside, and described steel band is fitted on described trough outer wall;
Described impermeable barrier layer is that polyamide is made, and described impermeable barrier layer passes through ceramic fiber adhesive bond on described bellows internal layer;
Described bellows internal layer inwall undulate, described bellows internal layer inwall is provided with spiral reinforcement steel wire, and described reinforcement steel wire is fitted on described bellows internal layer waveform inwall.
Further, for realizing the utility model better, have sound absorption spongy layer in described impermeable barrier layer outer installment, described sound absorption spongy layer is outside at described impermeable barrier layer by ceramic fiber adhesive bond.
Further, for realizing the utility model better, in the middle part of described sound absorption spongy layer, be provided with elastic force cavity, described elastic force cavity uniform intervals is arranged in the middle part of described sound absorption spongy layer.
Further, for realizing the utility model better, described bellows skin and bellows internal layer are polyethylene and make.
Further, for realizing the utility model better, it is inner that described stiffening rib is fitted in described crest ringwise, and described steel band is fitted on described trough outer wall ringwise.
The utility model compared with prior art, has following beneficial effect:
(1) the utility model is by adopting the mode arranging stiffening rib and steel band in the crest and trough of bellows respectively, crest and trough can be made all effectively to be strengthened, avoid crest or trough stressed time be out of shape impaired, effectively extend overall working life;
(2) the utility model is by adopting impermeable barrier layer, can effectively avoid the harmful matter infiltration in bellows to reveal;
(3) the impermeable barrier layer made by adopting ceramic fiber Bond bonding polyamide of the utility model, can while realization bonding, boning loosely or the much phenomenons causing bellows overweight of weight of binder appears in the bellows avoiding existing Bond to bond;
(4) the utility model arranges reinforcement steel wire by adopting at bellows internal layer, bellows internal layer can be made to be not easy to damage when stressed, improve its intensity, effectively extend the working life of bellows.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme of the utility model embodiment, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present utility model, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the utility model overall structure schematic diagram.
Wherein: 101. crests, 102. troughs, 103. impermeable barrier layers, 104. stiffening ribs, 105. steel bands, 106. strengthen steel wire, 107. sound absorption spongy layers, 108. elastic force cavitys, 109. bellows internal layers.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail, but mode of execution of the present utility model is not limited thereto.
As shown in Figure 1, a kind of bellows pipe fitting, comprise the bellows skin being provided with crest 101 and trough 102 and the bellows internal layer 109 being arranged on the outer inside of bellows, between described bellows skin and bellows internal layer 109, be provided with impermeable barrier layer 103;
Be provided with stiffening rib 104 inside described crest 101, described stiffening rib 104 is fitted on described crest 101 inwall, has steel band 105 in described trough 102 arranged outside, and described steel band 105 is fitted on described trough 102 outer wall;
Described impermeable barrier layer 103 is made for polyamide, described impermeable barrier layer 103 by ceramic fiber adhesive bond on described bellows internal layer 109;
Described bellows internal layer 109 inwall undulate, described bellows internal layer 109 inwall is provided with spiral reinforcement steel wire 106, and described reinforcement steel wire 106 is fitted on described bellows internal layer 109 waveform inwall.
The noise produced in use to enable bellows is effectively reduced, in the present embodiment, preferably, have sound absorption spongy layer 107 in described impermeable barrier layer 103 outer installment, described sound absorption spongy layer 107 is outside at described impermeable barrier layer 103 by ceramic fiber adhesive bond.
Be not easy to make bellows to damage, in the present embodiment, preferably, in the middle part of described sound absorption spongy layer 107, be provided with elastic force cavity 108, described elastic force cavity 108 uniform intervals is arranged in the middle part of described sound absorption spongy layer 107.By adopting elastic force cavity 108, can make bellows when stressed, first elastic force cavity 108 is out of shape, and avoids bellows internal layer 109 to be out of shape under external force impaired, effectively extends the working life of bellows entirety.
In order to make total more simple, in the present embodiment, preferably, described bellows skin and bellows internal layer 109 are polyethylene and make.By adopting polyethylene to make bellows skin and bellows internal layer, while can conveniently processing, making total more light and handy, reducing overall weight.
In the present embodiment, conveniently install, preferably, it is inner that described stiffening rib 104 is fitted in described crest 101 ringwise, and described steel band 105 is fitted on described trough 102 outer wall ringwise.Namely adopt stiffening rib 104 and the steel band 105 of annular, stiffening rib 104 and steel band 105 are fitted in crest 101 and trough 102 respectively ringwise, can conveniently install, meanwhile, make total more firm.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a bellows pipe fitting, it is characterized in that: comprise the bellows skin being provided with crest (101) and trough (102) and the bellows internal layer (109) being arranged on the outer inside of bellows, between described bellows skin and bellows internal layer (109), be provided with impermeable barrier layer (103);
Described crest (101) inner side is provided with stiffening rib (104), described stiffening rib (104) is fitted on described crest (101) inwall, have steel band (105) in described trough (102) arranged outside, described steel band (105) is fitted on described trough (102) outer wall;
Described impermeable barrier layer (103) is made for polyamide, described impermeable barrier layer (103) by ceramic fiber adhesive bond on described bellows internal layer (109);
Described bellows internal layer (109) inwall undulate, described bellows internal layer (109) inwall is provided with spiral reinforcement steel wire (106), and described reinforcement steel wire (106) is fitted on described bellows internal layer (109) waveform inwall.
2. a kind of bellows pipe fitting according to claim 1, it is characterized in that: have sound absorption spongy layer (107) in described impermeable barrier layer (103) outer installment, described sound absorption spongy layer (107) is outside at described impermeable barrier layer (103) by ceramic fiber adhesive bond.
3. a kind of bellows pipe fitting according to claim 2, it is characterized in that: described sound absorption spongy layer (107) middle part is provided with elastic force cavity (108), described elastic force cavity (108) uniform intervals is arranged in described sound absorption spongy layer (107) middle part.
4. a kind of bellows pipe fitting according to claim 1 or 2 or 3, is characterized in that: described bellows skin and bellows internal layer (109) are polyethylene and make.
5. a kind of bellows pipe fitting according to claim 1 or 2 or 3, it is characterized in that: it is inner that described stiffening rib (104) is fitted in described crest (101) ringwise, and described steel band (105) is fitted on described trough (102) outer wall ringwise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520453876.1U CN204879100U (en) | 2015-06-28 | 2015-06-28 | Bellows pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520453876.1U CN204879100U (en) | 2015-06-28 | 2015-06-28 | Bellows pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204879100U true CN204879100U (en) | 2015-12-16 |
Family
ID=54823472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520453876.1U Expired - Fee Related CN204879100U (en) | 2015-06-28 | 2015-06-28 | Bellows pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204879100U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469723A (en) * | 2019-08-15 | 2019-11-19 | 河北华整实业有限公司 | A kind of new type mining helical bellows |
-
2015
- 2015-06-28 CN CN201520453876.1U patent/CN204879100U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469723A (en) * | 2019-08-15 | 2019-11-19 | 河北华整实业有限公司 | A kind of new type mining helical bellows |
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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: 20180628 |
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| CF01 | Termination of patent right due to non-payment of annual fee |