CN201944259U - Sealing structure and threaded connection pair with same - Google Patents
Sealing structure and threaded connection pair with same Download PDFInfo
- Publication number
- CN201944259U CN201944259U CN201120040074XU CN201120040074U CN201944259U CN 201944259 U CN201944259 U CN 201944259U CN 201120040074X U CN201120040074X U CN 201120040074XU CN 201120040074 U CN201120040074 U CN 201120040074U CN 201944259 U CN201944259 U CN 201944259U
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- sealing structure
- utility
- model
- annular recess
- threaded
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- Expired - Fee Related
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- Bolts, Nuts, And Washers (AREA)
- Gasket Seals (AREA)
Abstract
本实用新型提供了一种密封结构及具有该密封结构的螺纹连接副。根据本实用新型的密封结构包括垫圈(1)和弹性密封圈(3)，垫圈(1)的内孔的端口处设有环形凹部，弹性密封圈(3)安装在环形凹部内。采用本实用新型的密封结构，安装牢固而且密封性好。根据本实用新型的螺纹连接副包括上述的密封结构。
The utility model provides a sealing structure and a screw connection pair with the sealing structure. According to the utility model, the sealing structure includes a gasket (1) and an elastic sealing ring (3). An annular recess is provided at the port of the inner hole of the gasket (1), and the elastic sealing ring (3) is installed in the annular recess. Adopting the sealing structure of the utility model, the installation is firm and the sealing performance is good. The threaded connection pair according to the utility model includes the above-mentioned sealing structure.
Description
Technical field
The utility model relates to a kind of sealing configuration and has the pair that is threaded of sealing structure.
Background technique
Some equipment of installing on the electric locomotive roof are to be made by the material that is difficult for welding, and the general pair that is threaded that adopts is fixed on the electric locomotive roof the said equipment in the prior art.But adopt the secondary ways of connecting that is threaded to have poorly sealed, easy leakage problems, when sleety weather, rainwater or snow-broth leak in the car by the pair that is threaded easily.
Solving at present the electric locomotive roof secondary waterproof sealing mode that is threaded mainly is at bolt head and installs between the cover plate seal washer is installed, after the pair that is threaded is fastening, seal washer is compressed, gap sealing with between bolt head and the installation cover plate can not leak in the car water of roof by the pair that is threaded.But the shortcoming that this method exists is: the plasticity of seal washer is bigger, and bolt head is connected with seal washer elasticity with the installation cover plate, and equipment is installed insecure, and anti-loosing effect is poor, in case it is secondary loosening to be threaded, still is easy to generate the seepage phenomenon.
The model utility content
The utility model aims to provide a kind of sealing configuration and has the pair that is threaded of sealing structure, and is insecure to solve the installation that the secondary sealing configuration that is threaded of the prior art exists, the poorly sealed technical problem in loosening back.
For achieving the above object, according to an aspect of the present utility model, provide a kind of sealing configuration, this comprises packing ring and elastic seal ring, and the port of packing ring endoporus is provided with annular recess, and elastic seal ring is installed in the annular recess.
Further, the height of annular recess is h, and the height of elastic seal ring is h1, wherein, and h1＞h.
Further, elastic seal ring is the O RunddichtringO, and diameter is d1, diameter d 1＞h.
Further, the axial cross section of annular recess is trapezoidal, and elastic seal ring contacts with trapezoidal roof and sidewall.
Further, elastic seal ring is bonded in the annular recess by Bond.
According to another aspect of the present utility model, a kind of pair that is threaded is provided, this pair that is threaded comprises aforesaid sealing configuration.
According to the technical solution of the utility model, owing to adopt and be provided with annular recess in the port of packing ring endoporus, elastic seal ring is installed in structure in the annular recess, thereby the plasticity that has overcome the secondary seal washer that is threaded in the prior art is bigger, install insecure, the poorly sealed technical problem in loosening back has reached secondary the installation firmly and the effect of good airproof performance that be threaded.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.In the accompanying drawings:
Fig. 1 is the sectional structure schematic representation according to sealing configuration of the present utility model; And
Fig. 2 is the secondary assembly structure schematic representation that is threaded according to the sealing configuration of the Fig. 1 of having of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As shown in Figure 1, the sealing structure comprises packing ring 1 and elastic seal ring 3, and the port of the endoporus of packing ring 1 is provided with annular recess, and elastic seal ring 3 is installed in the annular recess.Like this, according to sealing configuration of the present utility model, when being applied to be threaded pair, packing ring 1 and elastic seal ring 3 can be mounted between bolt head and the cover plate to be installed, after the pair that is threaded is fastening, elastic seal ring 3 is by packing ring 1 extrusion-deformation, with the gap sealing between bolt head and the installation cover plate, make secondary the installation firmly and good airproof performance that be threaded, secondary by bolt to the installation cover plate of locomotive the time when being threaded, when sleety weather, rainwater or snow-broth just can not leak in the car by the pair that is threaded.
Preferably, the height of annular recess is h, and the height of elastic seal ring 3 is h1, wherein, and h1＞h.Because the height of elastic seal ring 3, makes that elastic seal ring 3 can be by packing ring 1 compressive strain greater than the height of annular recess, and then with bolt head with gap sealing between the cover plate is installed.
By 1 as can be seen, in the present embodiment, elastic seal ring 3 is the O RunddichtringO, and diameter is d1, and wherein the value of diameter d 1 is as the value of height h1, diameter d 1＞h.The cost of O-ring seals is lower, and after using seal action to lose efficacy for a long time, also replacing and maintenance cost are also low easily.
It can also be seen that in the present embodiment, the axial cross section of annular recess is trapezoidal by 1, elastic seal ring 3 contacts with trapezoidal roof and sidewall.Bolton is crossed in the sealing journey like this, elastic seal ring 3 stressed even increases, and then, realize good sealing effect gradually by the roof of packing ring 1 and sidewall extrusion-deformation.In addition, the annular bottom surface of packing ring 1 is pressed on by bolt and installs on the cover plate, has realized locking effect, keeps good bearing power, has ensured the long-term stability of sealing effect.
Certainly, elastic seal ring 3 also can be fixed in the annular recess by Bond.Such structure can make the effect of elastic seal ring and Bond common guarantee sealing, and elastic seal ring 3 and packing ring 1 be connected also more stable.
Fig. 2 shows according to the pair that is threaded of the present utility model, and this pair that is threaded comprises aforesaid sealing configuration.By among Fig. 2 as can be seen, sealing configuration is fixed on the installation cover plate 7 of locomotive by bolt 5, seal ring 3 is compressed by packing ring 1 simultaneously, realize good sealing effect, packing ring 1 contacts with the installation cover plate 7 of locomotive simultaneously, keep good bearing power, realized locking effect, ensured the long-term stability of sealing effect.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120040074XU CN201944259U (en) | 2011-02-16 | 2011-02-16 | Sealing structure and threaded connection pair with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120040074XU CN201944259U (en) | 2011-02-16 | 2011-02-16 | Sealing structure and threaded connection pair with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201944259U true CN201944259U (en) | 2011-08-24 |
Family
ID=44471602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120040074XU Expired - Fee Related CN201944259U (en) | 2011-02-16 | 2011-02-16 | Sealing structure and threaded connection pair with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201944259U (en) |
-
2011
- 2011-02-16 CN CN201120040074XU patent/CN201944259U/en not_active Expired - Fee Related
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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: 20110824 Termination date: 20170216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |