CN203604734U - High-airtightness valve core - Google Patents
High-airtightness valve core Download PDFInfo
- Publication number
- CN203604734U CN203604734U CN201320777210.2U CN201320777210U CN203604734U CN 203604734 U CN203604734 U CN 203604734U CN 201320777210 U CN201320777210 U CN 201320777210U CN 203604734 U CN203604734 U CN 203604734U
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- China
- Prior art keywords
- core body
- core
- sealing
- sealing pad
- sealing gasket
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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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 57
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract 3
- KNXVOGGZOFOROK-UHFFFAOYSA-N trimagnesium;dioxido(oxo)silane;hydroxy-oxido-oxosilane Chemical compound [Mg+2].[Mg+2].[Mg+2].O[Si]([O-])=O.O[Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O KNXVOGGZOFOROK-UHFFFAOYSA-N 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 241001633942 Dais Species 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model discloses a high-airtightness valve core which comprises a core rod. The core rod is sleeved with a core body, a sealing pad is arranged between the tail end of the core body and the core rod, a core seat is arranged at the tail end of the core rod in a sleeved mode, an inner conical face is arranged on the inner peripheral wall of the tail end of the core body, one end of the sealing pad extends into the tail end of the core body and makes contact with the inner conical face, and the other end of the sealing pad abuts against thee core seat. Moreover, the core seat extends towards the sealing pad and wraps the peripheral side of the sealing pad, a guide portion convenient to assemble is arranged on the peripheral wall of the core body, the original end face contact between the core body and the sealing pad is changed to be linear contact, the contact area of the core body and the sealing pad is reduced, and airtightness is improved. In addition, compared with plane sealing, the linear sealing of the inner conical face has a large advantage of the compensation effect on permanent deformation of the sealing pad, tight contact of the core body and the sealing position of the sealing pad can be maintained all the time, and permanent airtightness of the valve core is improved. The guide portion is arranged on the periphery of the tail of the core body, a sealing ring of the valve core can be conveniently and automatically arranged in a sleeved mode, and production efficiency is improved.
Description
Technical field
The utility model relates to a kind of high leak tightness valve inside.
Background technique
Valve inside comprises core bar, be set with core cap in core bar periphery, core spring, core body, seal ring, the component such as sealing gasket and core print seat, and in prior art, the sealing means between core seal and core body is end face seal, rely on the end face of core body and the end face close contact of sealing gasket to play seal action, but this mode has an insoluble problem in the production process of the inner tube of a tyre: for the ease of packing, the inner tube of a tyre will vacuumize, owing to will use French chalk in sulfidization molding process, so it is residual that inner tube of a tyre inside has French chalk, in the time vacuumizing, French chalk can adhere on sealing gasket, thereby have influence on the sealability of valve inside, cause the inner tube of a tyre air inlet after vacuumizing, in inner tube of a tyre vacuum, approximately there is 30～50% air inlet rate by verification experimental verification valve inside of the prior art, cause normally FOLD AND PACK of the inner tube of a tyre, need in the time of packing, again vacuumize, cause man power and material's the wasting of resources.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of good sealing effect, is particularly suitable for the high leak tightness valve inside of the inner tube of a tyre that need to vacuumize packing.
For solving the problems of the technologies described above, the technical solution of the utility model is: high leak tightness valve inside, comprise core bar, described core bar periphery is set with core body, between described core body tail end and described core bar, be provided with sealing gasket, described core bar tail end is set with core print seat, described core body tail end inner circle wall is provided with inner conical surface, described sealing gasket one end is stretched in described core body tail end and is contacted with described inner conical surface, the described sealing gasket the other end is resisted against on described core print seat, and described core print seat extends and be coated on the outer circumferential side of described sealing gasket to described sealing gasket side; The periphery wall of described core body is provided with the guide portion of being convenient to assembling.
As the preferred technological scheme of one, described guide portion is the male cone (strobilus masculinus) that described core body afterbody outer wall is provided with.
As the preferred technological scheme of one, described guide portion is that described core body afterbody outer surface is stepped, and junction surface between two ladders is the conical surface.
Owing to having adopted technique scheme, the beneficial effects of the utility model are: in core body lower end, inwall is provided with inner conical surface, and sealing gasket end contacts with described inner conical surface, make line contact into by original end contact between the two, thereby reduce the area of contact of sealing gasket and core body, under similarity condition, reduce French chalk and entered the probability at sealing position, thereby improved the reliability of sealing; Moreover the sealing of the linear sealing opposite planar of inner conical surface, the compensating action in the time of sealing gasket generation permanent deformation also has greater advantage, can remain the close contact at core body and sealing gasket sealing position, has improved the long term seal performance of valve inside.Meanwhile, because core body afterbody periphery is provided with guide portion, be conducive to seal ring of valve inside and realize suit automatically, improved manufacturing efficiency, reduced cost of production, solved the high difficult problem of conical surface seal mode valve inside cost.
accompanying drawing explanation
The following drawings is only intended to the utility model to schematically illustrate and explain, does not limit scope of the present utility model.Wherein:
Fig. 1 is the utility model embodiment's structural representation;
In figure: 1-core bar; 2-core spring; 3-core body; The anti-decylization platform of 31-; 32-guide portion; 33-inner conical surface; 34-clamping ring platform; 4-core cap; 41-limited ring dais; 42-ring cavity; 5-seal ring; 6-sealing gasket; 7-core print seat.
Embodiment
Below in conjunction with drawings and Examples, further set forth the utility model.In the following detailed description, only by the mode of explanation, some one exemplary embodiment of the present utility model has been described.Undoubtedly, those of ordinary skill in the art can recognize, in the situation that not departing from spirit and scope of the present utility model, can revise described embodiment by various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than for limiting the protection domain of claim.
As shown in Figure 1, high leak tightness valve inside, comprise core bar 1, described core bar 1 periphery is set with core cap 4, core spring 2 and core body 3 successively, described core bar 1 tail end is set with core print seat 7, on described core bar 1 between described core print seat 7 and described core body 3, be set with sealing gasket 6, described core body 3 peripheries are set with seal ring 5, described core body 3 tail end inner circle walls are provided with inner conical surface 33, described sealing gasket 6 one end are stretched in described core body 3 tail ends and are contacted with described inner conical surface 33, and described sealing gasket 6 the other ends are resisted against on described core print seat 7.
Be provided with inner conical surface 33 at core body 3 lower end inwalls, and sealing gasket 6 ends contact with described inner conical surface 33, make line contact into by end contact of the prior art between the two, thereby reduce the area of contact of sealing gasket 6 with core body 3, under similarity condition, reduce French chalk and entered the probability at sealing position, thereby improved the reliability of sealing; On the other hand, the linear sealing opposite planar sealing of inner conical surface 33, the compensating action in the time that permanent deformation occurs sealing gasket 6 also has greater advantage, can remain that core body 3 and sealing gasket 6 seal the close contact at position, have improved the long term seal performance of valve inside.
Described core print seat 7 extends and is coated on the outer circumferential side of described sealing gasket 6 to described sealing gasket 6 sides, in the time that sealing gasket 6 is squeezed, make the inwall of sealing gasket 6 produce the arc deformation away from core bar 1, make to produce certain gap between the two, thereby reduce sealing effect, and by after coated core print seat 7 sealing gasket 6, while making core print seat 7 produce deformation to sealing gasket 6, there is reaction force, can stop to a certain extent sealing gasket 6 to be out of shape, thus enhanced leaktightness effect, the sealability of raising valve inside.
The cap of core described in the present embodiment 4 lower ends are provided with the ring cavity 42 that holds described core body 3, described core body 3 upper ends are provided with outwards gives prominence to and seals with described ring cavity 42 chamber walls the anti-decylization platform 31 contacting, described core cap 4 lower ends are provided with and curve inwardly for limiting the limited ring dais 41 of described core body 3 sliding distances, can prevent that core body 3 from coming off out from core cap 4, guarantee the Security that valve inside uses.
The periphery wall of described core body 3 is provided with the guide portion 32 of being convenient to assembling, can realize easily assembly automation.The described guide portion 32 of the present embodiment is that described core body 1 afterbody outer surface is stepped, and the junction surface between two ladders is the conical surface, certainly guide portion 32 is not limited to above-mentioned a kind of mode, also the inverted male cone (strobilus masculinus) that described core body 3 afterbody outer walls are provided with can be set to, the object of above-mentioned installation guiding can be reached equally.
Described core body 3 peripheries are provided with the annular groove for fixing described seal ring 5, are provided with protruding clamping ring platform 34 in described annular groove, and described seal ring 5 inwalls are provided with and the corresponding clamping annular groove of described clamping ring platform 34, make stationarity and the better tightness of seal ring 5.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. high leak tightness valve inside, comprise core bar, described core bar periphery is set with core body, between described core body tail end and described core bar, be provided with sealing gasket, described core bar tail end is set with core print seat, it is characterized in that: described core body tail end inner circle wall is provided with inner conical surface, and described sealing gasket one end is stretched in described core body tail end and contacted with described inner conical surface, the described sealing gasket the other end is resisted against on described core print seat, and described core print seat extends and be coated on the outer circumferential side of described sealing gasket to described sealing gasket side; The periphery wall of described core body is provided with the guide portion of being convenient to assembling.
2. high leak tightness valve inside as claimed in claim 1, is characterized in that: described guide portion is the male cone (strobilus masculinus) that described core body afterbody outer wall is provided with.
3. high leak tightness valve inside as claimed in claim 1, is characterized in that: described guide portion is that described core body afterbody outer surface is stepped, and junction surface between two ladders is the conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320777210.2U CN203604734U (en) | 2013-12-02 | 2013-12-02 | High-airtightness valve core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320777210.2U CN203604734U (en) | 2013-12-02 | 2013-12-02 | High-airtightness valve core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203604734U true CN203604734U (en) | 2014-05-21 |
Family
ID=50717409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320777210.2U Expired - Lifetime CN203604734U (en) | 2013-12-02 | 2013-12-02 | High-airtightness valve core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203604734U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534132A (en) * | 2014-11-25 | 2015-04-22 | 苏州速腾电子科技有限公司 | Metal core body of valve core |
| CN107809724A (en) * | 2017-12-22 | 2018-03-16 | 奥音新材料（镇江）有限公司 | A kind of split type Glue dripping head of loudspeaker production |
-
2013
- 2013-12-02 CN CN201320777210.2U patent/CN203604734U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534132A (en) * | 2014-11-25 | 2015-04-22 | 苏州速腾电子科技有限公司 | Metal core body of valve core |
| CN107809724A (en) * | 2017-12-22 | 2018-03-16 | 奥音新材料（镇江）有限公司 | A kind of split type Glue dripping head of loudspeaker production |
| CN107809724B (en) * | 2017-12-22 | 2023-11-21 | 镇江贝斯特新材料股份有限公司 | Split type dispensing head for loudspeaker production |
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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 |
Owner name: GAOMI TONGCHUANG VALVE CO., LTD. Free format text: FORMER NAME: GAOMI TONGCHUANG AUTOMOBILE FITTING CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 261500 No. 1908 Fenghuang Avenue (West), Weifang, Shandong, Gaomi City Patentee after: GAOMI TONGCHUANG VALVE CORE Co.,Ltd. Address before: 261500, Weifang, Shandong, Gaomi City Fenghuang Avenue (West) No. 1908 Gaomi City create auto parts Co., Ltd. Patentee before: GAOMI TONGCHUANG AUTOMOBILE FITTING Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High-airtightness valve core Effective date of registration: 20170307 Granted publication date: 20140521 Pledgee: Bank of China Limited by Share Ltd. Weifang Gaomi branch Pledgor: GAOMI TONGCHUANG VALVE CORE Co.,Ltd. Registration number: 2017980000056 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20180907 Granted publication date: 20140521 Pledgee: Bank of China Limited by Share Ltd. Weifang Gaomi branch Pledgor: GAOMI TONGCHUANG VALVE CORE Co.,Ltd. Registration number: 2017980000056 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |