CN205315894U - Coupling and coupling coupling assembling - Google Patents
Coupling and coupling coupling assembling Download PDFInfo
- Publication number
- CN205315894U CN205315894U CN201620107308.0U CN201620107308U CN205315894U CN 205315894 U CN205315894 U CN 205315894U CN 201620107308 U CN201620107308 U CN 201620107308U CN 205315894 U CN205315894 U CN 205315894U
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- tube
- tube stub
- coupling
- stub
- butt
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Abstract
The utility model discloses a coupling and coupling coupling assembling, including the coupling body, hold for the butt joint union coupling at the one end or the both ends of coupling body, butt joint union coupling end is equipped with can follow inner wall to taking over stretches into to the extension section of taking over, further include with the coupling body cooperatees in order to connect to the connecting piece of taking over, the connecting piece is equipped with the confession the through hole segment who passes the takeover, the length less than or equal to of extension section through hole segment's length. This coupling and coupling coupling assembling can avoid the pipeline to take place too big skew, deformation, fatigue failure, slip and take place to leak in the junction to the obvious reliability that improves the butt joint.
Description
Technical field
The utility model relates to technical field of refrigeration equipment, the tube stub particularly used in air-conditioning or other refrigeration cycle system. The utility model also relates to the connection mechanism adopting described tube stub.
Background technology
At present, in air-conditioning or other refrigeration cycle system, having the pipeline of some amount to need to be undertaken docking by tube stub just can be interconnected, thus form whole system, therefore tube stub is parts very important during pipeline connects.
Please refer to Fig. 1, Fig. 2, Fig. 1 is the structural representation of a kind of typical tube stub body; Fig. 2 adopts tube stub body shown in Fig. 1 to carry out the schematic diagram docked.
As shown in the figure, in split-type air conditioner, the connection of its internal-external machine adopts butt tube 3' bell mouth expanding structure mostly, then is fixed by shrink-fit between tube stub body 1' and adapter nut 2' end face, forms sealing docking, because there is gap between butt tube 3' and adapter nut 2', butt tube 3' and adapter nut 2' is inserted in tube stub body 1', more urgent adapter nut 2' fixing after, the central shaft of tube stub and butt tube 3' can produce skew, it is difficult to overlap, it is easy to cause system refrigerant to leak.
In addition, after installing the urgent adapter nut 2' of personnel, often needing to pull butt tube 3', to adjust pipeline position, after repeatedly pulling, it is easy to cause butt tube 3' to be out of shape, butt tube 3' loudspeaker oral area is because by bigger stress, very easily fatigure failure or slip, cause leakage.
Therefore, how to improve the reliability of tube stub junction further, it is those skilled in the art's technical issues that need to address.
Practical novel content
First object of the present utility model is to provide a kind of tube stub. This tube stub can avoid pipeline occur in junction excessive skew, distortion, tired damaged, slide and leak, thus significantly improve the reliability of docking, it is ensured that the system at its place can normally, stablely run.
2nd object of the present utility model is to provide a kind of tube stub tie-in module that have employed described tube stub.
For realizing above-mentioned first object, the utility model provides a kind of tube stub, comprising tube stub body, the one or both ends of described tube stub body are butt tube coupling end, and described butt tube coupling end is provided with the lengthening section that can stretch into described butt tube along the inwall of described butt tube.
Preferably, comprising with described this mates of tube stub to be connected the web member of described butt tube further, described web member is provided with for the through hole section that described butt tube passes, and the length of described lengthening section is less than or equal to the length of described through hole section.
Preferably, described tube stub body and web member fix described butt tube in the way of compressing.
Preferably, the butt tube coupling end of described tube stub body is provided with pressure-bearing portion, and described web member is provided with the pressure portion corresponding with described pressure-bearing portion.
Preferably, described pressure-bearing portion is the outer conical surface being located at described butt tube coupling end, and described pressure portion is be located at the inner conical surface of described web member.
Preferably, described web member is adapter nut, and it is threaded with described tube stub body.
Preferably, the excircle of described tube stub body is provided with it in the operation nut of integral structure.
For realizing above-mentioned 2nd object, the utility model provides a kind of tube stub tie-in module, and the butt tube comprising tube stub and connecing corresponding thereto, described tube stub is the tube stub described in above-mentioned arbitrary item.
Preferably, the lengthening section of described tube stub and the tolerance clearance scope of described butt tube are at 0.1mm～0.4mm.
The utility model has done further improvement on the basis of existing tube stub, it has set up lengthening section at the butt tube coupling end of tube stub body, when tube stub and butt tube sealing docking, this lengthening section can extend in butt tube along inwall, under the guiding and positioning action of lengthening section, when web member is connected with tube stub body, the skew of butt tube central shaft and tube stub central shaft can be effectively controlled, greatly reduce the possibility of leakage, and, lengthening section makes butt tube inwall be fixed, install at butt tube and pull in process, butt tube can be reduced and swing scope, avoid the butt tube near junction that depression distortion occurs, thus butt tube Root Stress is controlled within the specific limits, avoid butt tube leakage failure.
In a kind of preferred version, by the cut to lengthen of lengthening section within the length being less than or equal to web member through hole section. Like this, can ensure that lengthening section is under the prerequisite playing guiding, positioning action, web member can not be exceeded in the axial direction, thus avoid the formation of territory, area of stress concentration, ensure that connection can not be had a negative impact by lengthening section.
Tube stub tie-in module provided by the utility model is provided with described tube stub, and owing to this tube stub has above-mentioned technique effect, then the tube stub tie-in module being provided with this tube stub also should have corresponding technique effect.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of typical tube stub body;
Fig. 2 adopts tube stub body shown in Fig. 1 to carry out the schematic diagram docked;
Fig. 3 is provided the structural representation of the tube stub body of tube stub for the utility model;
Fig. 4 is provided the structural representation of tube stub tie-in module for the utility model.
In Fig. 1, Fig. 2:
1'. tube stub body 2'. adapter nut 3'. butt tube
In Fig. 3, Fig. 4:
1. tube stub body 11. lengthening section 2. adapter nut 3. butt tube
Embodiment
Core of the present utility model is by setting up the connection reliability that the extension that can stretch into butt tube improves junction at the coupling end of tube stub body, ensures that leakage phenomenon in use can not occur in junction.
In order to make those skilled in the art understand the utility model scheme better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 3, Fig. 4, Fig. 3 is provided the structural representation of the tube stub body of tube stub for the utility model; Fig. 4 is provided the structural representation of tube stub tie-in module for the utility model.
In a kind of specific embodiment, the tube stub that the utility model provides is formed primarily of tube stub body 1 and adapter nut 2 two portions, and wherein substantially in a tubular form, its inside is through hole to tube stub body 1, and it is with it the operation nut of integral structure that excircle is provided with.
As shown in the figure, the left end of tube stub body 1 is generally connected with certain pipeline in advance, and right-hand member is butt tube coupling end, needs when assembling to be connected with the butt tube 3 to be connected through operation. Here the mode that employing adapter nut 2 and tube stub body 1 match is to connect butt tube 3, and concrete mode of connection is as follows:
Adapter nut 2 is threaded with tube stub body 1, itself and tube stub body 1 be fixing butt tube 3 in the way of compressing, the coupling end enlarging of butt tube 3 is horn-like, and the butt tube coupling end of tube stub body 1 is provided with the outer conical surface, and adapter nut 2 is provided with the inner conical surface corresponded. After adapter nut 2 and tube stub body 1 screw, the horn-like coupling end of butt tube 3 is just pressed abd fixed between two conical surfaces, thus butt tube 3 and tube stub are linked together.
On this basis, the butt tube coupling end of tube stub body 1 is also provided with the lengthening section 11 in thin wall shape, this lengthening section 11 can extend in butt tube 3 along the inwall of butt tube 3 when docking, under the guiding and positioning action of lengthening section 11, butt tube 3 and adapter nut 2 be inserted in tube stub body 1 and during urgent adapter nut 2, the skew of butt tube 3 central shaft and tube stub central shaft can be effectively controlled, and greatly reduces the possibility that refrigeration agent leaks. And, lengthening section 11 makes butt tube 3 inwall be fixed, and installs and pulls at butt tube 3 in process, butt tube 3 can be reduced and swing scope, avoid the butt tube 3 near junction that depression distortion occurs, thus hydraucone Root Stress is controlled within the specific limits, avoid butt tube 3 leakage failure.
Adapter nut 2 is provided with for the through hole section that butt tube 3 passes, and the length L of lengthening section 11 should be less than or equal to the length K of through hole section, in order to avoid lengthening section 11 exceeds adapter nut 2 in the axial direction, and forms territory, area of stress concentration, connection is had a negative impact.
Except above-mentioned tube stub, the utility model also provides a kind of tube stub tie-in module, the butt tube 3 comprising tube stub and connect corresponding thereto, wherein tube stub is tube stub above, it should be noted that, after assembling, the lengthening section 11 of tube stub and the tolerance clearance of butt tube 3 can be controlled between 0.1mm～0.4mm, concrete mode of connection, see above, no longer repeats here.
Above-described embodiment is only preferred version of the present utility model, is specifically not limited thereto, and can make pointed adjustment on this basis according to actual needs, thus obtain different enforcement modes. Such as, the two ends of tube stub body 1 are all butt tube coupling end, or, web member adopts other parts except adapter nut 2, or, web member is connected with tube stub body by modes such as card connect, etc. Mode owing to realizing is more, just illustrates no longer one by one here.
Above tube stub provided by the utility model and tube stub tie-in module are described in detail. Applying specific case herein principle of the present utility model and enforcement mode to have been set forth, the explanation of above embodiment just understands core concept of the present utility model for helping. Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, it is also possible to the utility model carries out some improvement and modification, these improve and modify in the protection domain also falling into the utility model claim.
Claims (9)
1. a tube stub, comprise tube stub body (1), the one or both ends of described tube stub body (1) are butt tube coupling end, it is characterized in that, described butt tube coupling end is provided with the lengthening section (11) that can stretch into described butt tube (3) along the inwall of described butt tube (3).
2. tube stub according to claim 1, it is characterized in that, comprise further and match, with described tube stub body (1), the web member being connected described butt tube (3), described web member is provided with for the through hole section that described butt tube passes, and the length of described lengthening section (11) is less than or equal to the length of described through hole section.
3. tube stub according to claim 2, it is characterised in that, described tube stub body (1) and web member fix described butt tube (3) in the way of compressing.
4. tube stub according to claim 3, it is characterised in that, the butt tube coupling end of described tube stub body (1) is provided with pressure-bearing portion, and described web member is provided with the pressure portion corresponding with described pressure-bearing portion.
5. tube stub according to claim 4, it is characterised in that, described pressure-bearing portion is the outer conical surface being located at described butt tube coupling end, and described pressure portion is be located at the inner conical surface of described web member.
6. tube stub according to the arbitrary item of claim 2 to 5, it is characterised in that, described web member is adapter nut (2), and it is threaded with described tube stub body (1).
7. tube stub according to claim 6, it is characterised in that, the excircle of described tube stub body (1) is provided with it in the operation nut of integral structure.
8. a tube stub tie-in module, the butt tube (3) comprising tube stub and connecing corresponding thereto, it is characterised in that, described tube stub is the tube stub described in the arbitrary item of the claims 1 to 7.
9. tube stub tie-in module according to claim 8, it is characterised in that, the lengthening section (11) of described tube stub and the tolerance clearance of described butt tube (3) are at 0.1mm～0.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620107308.0U CN205315894U (en) | 2016-02-02 | 2016-02-02 | Coupling and coupling coupling assembling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620107308.0U CN205315894U (en) | 2016-02-02 | 2016-02-02 | Coupling and coupling coupling assembling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205315894U true CN205315894U (en) | 2016-06-15 |
Family
ID=56187896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620107308.0U Active CN205315894U (en) | 2016-02-02 | 2016-02-02 | Coupling and coupling coupling assembling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205315894U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108856315A (en) * | 2018-08-08 | 2018-11-23 | 浙江辛子精工机械股份有限公司 | A kind of improved cold tube rolling outer surface oil-scraping device |
-
2016
- 2016-02-02 CN CN201620107308.0U patent/CN205315894U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108856315A (en) * | 2018-08-08 | 2018-11-23 | 浙江辛子精工机械股份有限公司 | A kind of improved cold tube rolling outer surface oil-scraping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 312500 Xinchang, Zhejiang Qixing street under the Liquan Patentee after: Zhejiang three flower intelligent control Limited by Share Ltd Address before: 312500 Zhejiang city of Shaoxing province Xinchang County Mei Zhu Industrial Park Zhejiang three flower Limited by Share Ltd Patentee before: Zhejiang Sanhua Co., Ltd. |