CN203139433U - Bellows fixing connector - Google Patents
Bellows fixing connector Download PDFInfo
- Publication number
- CN203139433U CN203139433U CN 201320114798 CN201320114798U CN203139433U CN 203139433 U CN203139433 U CN 203139433U CN 201320114798 CN201320114798 CN 201320114798 CN 201320114798 U CN201320114798 U CN 201320114798U CN 203139433 U CN203139433 U CN 203139433U
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- CN
- China
- Prior art keywords
- bellows
- conical section
- interface
- section
- nut
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- 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
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Abstract
The utility model discloses a bellows fixing connector which is connected with a bellows. The bellows fixing connector comprises an inner connector part, a connector nut and an outer connector part, wherein a locking clamp sleeve is arranged between the bellows and the connector nut in a sleeved mode, the locking clamp sleeve is provided with a conical section in the axial direction, the conical section is a flexible section to achieve shrinkage and enlargement of the caliber of the conical section, and the inner surface of the connector nut is provided with a tapered section matched with the conical section. When the connector nut is screwed in the outer connector part, the tapered section of the connector nut applies radial tightening force to the conical section of the locking clamp sleeve, so that the caliber of the conical section of the locking clamp sleeve is contracted and the bellows is compressed, and therefore the bellows is prevented from falling off.
Description
Technical field
The utility model relates to a kind of interface arrangement, relates in particular to a kind of pipeline fixed interface.
Background technology
Electronic blast type long tube respirator is a kind of respirator that utilizes motor gas to be offered the operator for power source, it utilizes bellows constantly to be transported in the breathing mask fresh air that blower fan produces in a steady stream, even make the operator in bad working environment, also can breathe fresh air, thereby ensure operator's life security, also guarantee operator's normal operation.Therefore, the reliability as transport air bellows interface seems particularly important.
Fig. 1 is the syndeton cutaway view of existing bellows and fixed interface.As shown in Figure 1, the inwall of bellows 1 is connected by bonding realization of binding agent with the outer wall of inner joint spare 3, the external screw thread that is sheathed on the interface nut 2 of bellows 1 periphery is connected with the internal thread of external tapping spare 4, thereby realizes fixedlying connected of bellows 1 and fixed interface.
Obviously, in this connected mode, because the bellows inwall has helix, be that line contacts between the threaded line of bellows 1 inwall and inner joint spare 3 outer walls, its contact area is little, be very easy to slippage, this just is very easy to cause the interruption of supplying gas in the operation process, and then has brought Personal Risk and potential safety hazard.
The utility model content
The purpose of this utility model provides a kind of bellows fixed interface, and this interface should be realized fixedly securing of bellows, thereby prevents the bellows slippage, eliminates safe hidden trouble, and then realizes the purpose of labor protection and life rescue.
For achieving the above object, the utility model provides a kind of bellows fixed interface, and it is connected with bellows; Described fixed interface comprises an inner joint spare, an interface nut and an external tapping spare; Described inner joint spare is placed in the bellows; Described interface nut sleeve is located at outside bellows and the inner joint spare; Described external tapping spare is sheathed on outside inner joint spare and the interface nut, and is connected with the interface nut thread; In addition:
Also be arranged with a locking cutting ferrule between described bellows and the described interface nut, this locking cutting ferrule has a conical section in the axial direction, and this conical section is contraction and the amplification of compliant section can realize the conical section bore;
The inner surface of described interface nut also has the tapered section adaptive with described conical section;
Described interface nut is when precession external tapping spare, and the tapered section of interface nut applies a tightening force radially to the conical section of locking cutting ferrule, so that the bore of locking cutting ferrule conical section shrinks, thereby compresses described bellows, prevents the bellows slippage.
Bellows fixed interface described in the utility model is provided with tapered section and is provided with conical section at the locking cutting ferrule by the inner surface at the interface nut, conical section is set to compliant section simultaneously, thereby when interface nut and external tapping spare screw, conical section on the tapered section extruding locking cutting ferrule of interface nut shaft, flexible conical section stress deformation, and then coupling mechanism force is applied on the bellows.And along with interface nut and external tapping spare screw the increase of the degree of depth, the radially coupling mechanism force that bellows is subjected to is also increasing, thereby plays the fixedly purpose of bellows.
Further, in above-mentioned bellows fixed interface, described locking cutting ferrule has a pedestal section that is connected with described conical section, and described conical section comprises that several are along the arc-like sheet of the circumferential setting of locking cutting ferrule, the concyclic setting of each arc-like sheet, and have the gap between the two adjacent arc-like sheets.Because have the gap between the arc-like sheet, the arc-like sheet of these concyclic settings has contraction flexibility on the whole.
Bellows fixed interface described in the utility model has the following advantages than the existing fixed interface:
1. the utility model can effectively compress bellows by be provided with the locking cutting ferrule between bellows and interface nut, increases frictional force, prevents the bellows slippage.
2. the utility model is by being provided with the locking cutting ferrule between bellows and interface nut, make axial force partly be decomposed into radial load, thereby further strengthen the anti-slip ability of bellows, avoid the disconnection of bellows to cause Personal Risk and the potential safety hazard of supplying gas in the operation process and interrupting and causing.
Description of drawings
Fig. 1 is bellows and existing fixed interface syndeton cutaway view.
Fig. 2 is bellows fixed interface described in the utility model syndeton cutaway view in one embodiment.
Fig. 3 is interface nut of the present utility model structure cutaway view in one embodiment.
Fig. 4 is locking cutting ferrule of the present utility model three-dimensional view in one embodiment.
The specific embodiment
Come bellows fixed interface described in the utility model is further explained explanation below in conjunction with Figure of description and concrete embodiment.
As shown in Figure 2, the fixed interface in the present embodiment comprises: an inner joint spare 3 ', and it is sheathed in the bellows 1 '; A locking cutting ferrule 5, it is sheathed on outside the bellows 1 ', and locking cutting ferrule 5 has a conical section; An interface nut 2 ' is sheathed on outside the locking cutting ferrule 5, and the inner surface of interface nut 2 ' also is provided with one section tapered section, and this tapered section and the conical section coupling of locking cutting ferrule 5; An external tapping spare 4 ', it is sheathed on outside the interface nut 2 ', and is threaded with interface nut 2 '.
Fig. 3 has further shown the structure of interface nut 2 ' in the present embodiment, and as can be seen from Figure 3, the inner surface top of interface nut 2 ' is tapered section A.
Fig. 4 has further shown the structure of locking cutting ferrule 5 under a kind of embodiment.As can be seen from Figure 4, the locking cutting ferrule has pedestal section 51, and four arc-like sheets 52 that extend to axial direction from pedestal section 51, and these four arc-like sheets 52 have formed conical section jointly, and has the gap between the two adjacent arc-like sheets 52.Owing to have the gap between the arc-like sheet 52, when locking cutting ferrule 5 was subjected to radial compression power, the gap between the arc-like sheet 52 will dwindle, thereby dwindled the bore of locking cutting ferrule 5, and then the locking bellows.
Please continue to consult Fig. 1, when interface nut 2 ' and external tapping spare 4 ' screw, interface nut 2 ', the conical section of cutting ferrule 5 is locked in the tapered section extruding of inner surface, locks the conical section stress deformation of cutting ferrule 5, and then applies coupling mechanism force to bellows 1 '.Along with the increase that screws the degree of depth between interface nut 2 ' and the external tapping spare 4 ', the radially coupling mechanism force that bellows 1 ' is subjected to is also increasing.
The said fixing interface can effectively prevent the slippage of bellows, realizes fixedly securing of bellows.
It should be noted that; the above-mentioned explanation of disclosed embodiment makes this area professional and technical personnel to carry out multiple similar variation and modification for present embodiment apparently; this similar variation is all distortion that those skilled in the art can directly draw or be easy to just associate from content disclosed by the invention, all should belong to protection domain of the present utility model.Therefore the utility model can not be subjected to the restriction of this embodiment.
Claims (2)
1. bellows fixed interface, it is connected with bellows; Described fixed interface comprises an inner joint spare, an interface nut and an external tapping spare; Described inner joint spare is placed in the bellows; Described interface nut sleeve is located at outside bellows and the inner joint spare; Described external tapping spare is sheathed on outside inner joint spare and the interface nut, and is connected with the interface nut thread; It is characterized in that:
Also be arranged with a locking cutting ferrule between described bellows and the described interface nut, this locking cutting ferrule has a conical section in the axial direction, and this conical section is contraction and the amplification of compliant section can realize the conical section bore;
The inner surface of described interface nut also has the tapered section adaptive with described conical section;
Described interface nut is when precession external tapping spare, and the tapered section of interface nut applies a tightening force radially to the conical section of locking cutting ferrule, so that the bore of locking cutting ferrule conical section shrinks.
2. bellows fixed interface according to claim 1, it is characterized in that, described locking cutting ferrule has a pedestal section that is connected with described conical section, described conical section comprises that several are along the arc-like sheet of the circumferential setting of locking cutting ferrule, the concyclic setting of each arc-like sheet, and have the gap between the two adjacent arc-like sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320114798 CN203139433U (en) | 2013-03-13 | 2013-03-13 | Bellows fixing connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320114798 CN203139433U (en) | 2013-03-13 | 2013-03-13 | Bellows fixing connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203139433U true CN203139433U (en) | 2013-08-21 |
Family
ID=48966993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320114798 Expired - Fee Related CN203139433U (en) | 2013-03-13 | 2013-03-13 | Bellows fixing connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203139433U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108635648A (en) * | 2018-08-16 | 2018-10-12 | 浙江康泰管业科技有限公司 | A kind of bellows positioning joint |
-
2013
- 2013-03-13 CN CN 201320114798 patent/CN203139433U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108635648A (en) * | 2018-08-16 | 2018-10-12 | 浙江康泰管业科技有限公司 | A kind of bellows positioning joint |
| CN108635648B (en) * | 2018-08-16 | 2024-04-12 | 成都津钢金属制品有限公司 | Limiting joint for corrugated pipe |
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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: 20130821 Termination date: 20200313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |