CN205207795U - Big flux does not have spring valve inside inflating valve - Google Patents
Big flux does not have spring valve inside inflating valve Download PDFInfo
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- CN205207795U CN205207795U CN201520851437.6U CN201520851437U CN205207795U CN 205207795 U CN205207795 U CN 205207795U CN 201520851437 U CN201520851437 U CN 201520851437U CN 205207795 U CN205207795 U CN 205207795U
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- valve
- mouth body
- air current
- air
- gas discharge
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Abstract
The utility model provides a big flux does not have spring valve inside inflating valve, be used for the tubeless inflating valve, including the inflating valve mouth body, the mouth body is provided with the external screw thread, the mouth is internal to be equipped with central air current hole, mouth body end is provided with the expansion air current hole coaxial with central air current hole, the terminal screw of the mouth body has connect the bottom end cover soon, seted up in the end cover of bottom and enlarged the air current equant airflow channel in hole, airflow channel and expansion air current hole coaxial pair should communicate with each other, constitute the air current cavity, the bottom end cover is opened in addition has the exhaust passage, exhaust passage intercommunication air current cavity, be provided with in the air current cavity and follow the air current cavity inner wall one -way valve core of displacement from top to bottom, the central air current hole of blockking up or opening the mouth body through one -way valve core. Enlarge the air inlet sectional area, only at inlet channel rear end installation one way check valve, when this one way check valve opened, all passageway sectional areas of front and back all were not less than the default.
Description
Technical field
The utility model designing tyre valve cock makes field, particularly relates to large flux without valve inside valve cock.
Background technique
Investigate from tyre valve general at present, all there is the not well problem of an inflation in them, the not well meaning: one is inflate too slowly, and two is more require great effort because there is larger dynamic pressure official post inflation.This should be improved very soon.
First, we list relevant aerodynamics equation---Euler's equation: Δ P=1/2 ρ V
2i.e. Δ P
2/ Δ P
1=V
2 2/ V
1 2it can be understood as: when being extruded from slot by gas, the dynamic pressure of increase difference to spray square being directly proportional of gas velocity from slot.Suppose that the gas flow that the unit time extrudes from slot is equal, m
2/ t=m
1/ t is ρ S then
2l
2/ t=ρ S
1l
1/ t obtains S
2v
2=S
1v
1i.e. V
2 2/ V
1 2=S
1 2/ S
2 2then Euler's equation can be transformed into Δ P
2/ Δ P
1=S
1 2/ S
2 2we can say square being inversely proportional to of slot dynamic pressure difference and slot sectional area S.This absolutely proves that the ventilation sectional area of valve cock is very important parameter, and gives quantitative relation.Under the prerequisite that boundary dimension is determined, we must expand valve cock internal ventilation sectional area as far as possible.
Below, we discuss for current bicycle (electric motor car and car) tyre valve the most accustomed to using---and (English mouth and) U.S. mouth external diameter is 8mm screw thread, and the inner maximum caliber in front end is φ 5.6, stage casing 5mm screw thread, screw in valve inside, rear end is φ 3 hole mostly; And method mouth external diameter is 6mm screw thread, the about φ 3.6 of internal diameter, front end one-way valve is special, but also the same with U.S. mouth with Ying Zui, and their valve inside has become and adds stifled part in gas-entered passageway.Because when these valve insides are pressed off air inlet, air circulation cross-section is long-pending is less than 2mm mostly
2.Conclusion to eliminate these valve insides, makes air-flow more unobstructed.
Summary of the invention
The utility model is for the deficiencies in the prior art, and provide a kind of air inlet section that expands and amass, only install one-way cock in gas-entered passageway rear end, when this one-way cock is opened, all channel cross-sectional areas in front and back are all not less than the large flux of predefined value without valve inside valve cock.
For realizing the utility model object, provide following technological scheme: a kind of large flux is without spring valve inside valve cock, for tubeless valve cock, it is characterized in that comprising inflating valve body, mouth body is provided with outside thread, central gas discharge orifice is provided with in mouth body, mouth body end is provided with the expansion airflow hole coaxial with central gas discharge orifice, mouth body end thread is connected with bottom head covers, the air-flow path isometrical with expanding airflow hole is offered in bottom head covers, air-flow path correspondingly to communicate with expansion airflow hole is coaxial, form air-flow chamber, bottom head covers separately has exhaust passage, exhaust passage is communicated with air-flow chamber, being provided with in described air-flow chamber can along the nonreturn valve core of air-flow chamber inwall upper and lower displacement, blocked or open the central gas discharge orifice of mouth body by nonreturn valve core.
Described nonreturn valve core comprises the valve block that external diameter and air-flow chamber connect and the guides stem being arranged at valve block one end, and valve block outer wall offers a circle groove, is provided with seal ring in groove.
Bottom head covers bottom center offers the pilot hole coordinated with guides stem, and guides stem stretches in pilot hole.
Central gas discharge orifice is provided with one section of enlarged section, and guides stem stretches in enlarged section, and guides stem is cross section is man type tooth post.
For realizing another object of the utility model, provide another technological scheme: a kind of large flux is without spring valve inside valve cock, for there being inner tube valve, comprise inflating valve body, mouth body is provided with outside thread, central gas discharge orifice is provided with in mouth body, central gas discharge orifice comprises air inlet section, stage casing and end, the smooth conical surface is had in stage casing, it is characterized in that being provided with nonreturn valve core in the airflow hole of stage casing, nonreturn valve core is set to spherical crown three tooth float, nonreturn valve core top spherical crown and smooth conical surface-conical surface tangent, end be provided with method mouth, the internal thread that U.S. mouth connects, end and Fa Zui, U.S. mouth is threaded, complete connection.
As preferably, inflating valve body top is provided with top end cover, is provided with O shape rubber band in top end cover.
The utility model beneficial effect: according to the transformation for mula Δ P of Euler's equation
2/ Δ P
1=S
1 2/ S
2 2, we determine that expand air inlet section amasss as far as possible, and do not take it, and only install nonreturn valve core in gas-entered passageway rear end, and when this nonreturn valve core is opened, all channel cross-sectional areas in front and back are all not less than predefined value.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1.
Fig. 2 is the structural representation of embodiment 2.
Fig. 3 is the structural representation of embodiment 3.
Fig. 4 is the another kind of structural representation of embodiment 3.
Embodiment
Embodiment 1: a kind of large flux is without spring valve inside valve cock, and for tubeless valve cock, ventilation sectional area is 20mm
2, comprise inflating valve body 1, mouth body 1 is provided with 8mm outside thread, φ 5.1mm central gas discharge orifice 1.1 is provided with in mouth body 1, mouth body 1 end is provided with the expansion airflow hole 1.2 coaxial with central gas discharge orifice 1.1, mouth body 1 end thread is connected with bottom head covers 2, the air-flow path 2.1 isometrical with expanding airflow hole 1.2 is offered in bottom head covers 2, air-flow path 2.1 correspondingly to communicate with expansion airflow hole 1.2 is coaxial, form air-flow chamber, bottom head covers 2 separately has exhaust passage 2.2, exhaust passage 2.2 is communicated with air-flow chamber, being provided with in described air-flow chamber can along the nonreturn valve core 3 of air-flow chamber inwall upper and lower displacement, the central gas discharge orifice 1.1 of mouth body is blocked or opens by nonreturn valve core 3.Described nonreturn valve core 3 comprises the valve block 3.1 that external diameter and air-flow chamber connect and the guides stem 3.2 being arranged at valve block 3.1 one end, and valve block 3.1 outer wall offers a circle groove, is provided with seal ring 3.3 in groove.Bottom head covers 2 bottom center offers the pilot hole 2.3 coordinated with guides stem 3.2, and guides stem 3.2 stretches in pilot hole 2.3.
During inflation, valve block 4.1 is depressed, and deviates to expand airflow hole 1.2, deviates from position and locates by the bottom of end cap, and air is discharged from air-flow path and (is vented cross section and is not less than 20mm
2); After charging gas, tire internal air pressure can push to closedown spool.Valve block is backed down venting and pressure measuring and regulating by such structure also convenient push rod.
Embodiment 2: with reference to embodiment 1, and a kind of large flux is without spring valve inside valve cock, and for tubeless valve cock, ventilation sectional area is 20mm
2, comprise inflating valve body 1, mouth body 1 is provided with 8mm outside thread, φ 5.1mm central gas discharge orifice 1.1 is provided with in mouth body 1, mouth body 1 end is provided with the expansion airflow hole 1.2 coaxial with central gas discharge orifice 1.1, mouth body 1 end thread is connected with bottom head covers 2, the air-flow path 2.1 isometrical with expanding airflow hole 1.2 is offered in bottom head covers 2, air-flow path 2.1 correspondingly to communicate with expansion airflow hole 1.2 is coaxial, form air-flow chamber, bottom head covers 2 separately has exhaust passage 2.2, exhaust passage 2.2 is communicated with air-flow chamber, being provided with in described air-flow chamber can along the nonreturn valve core 3 of air-flow chamber inwall upper and lower displacement, the central gas discharge orifice 1.1 of mouth body is blocked or opens by nonreturn valve core 3.Described nonreturn valve core 3 comprises the valve block 3.1 that external diameter and air-flow chamber connect and the guides stem 3.2 being arranged at valve block 3.1 one end, and valve block 3.1 outer wall offers a circle groove, is provided with seal ring 3.3 in groove.Central gas discharge orifice 1.1 is provided with one section of enlarged section 1.1.1, and guides stem 3.2 stretches in enlarged section 1.1.1, guides stem 3.2 for cross section be man type tooth post.When nonreturn valve core 3 is pushed downwards out, air-flow passes through from the teeth groove of guides stem 3.2, does not affect 20mm
2ventilation sectional area, but for valve cock lower end structure saves space.Lengthen push rod with flat dentation when venting and pressure regulation to press from three tooth guide pillar upper ends, with operating in the past.
Embodiment 3: a kind of large flux is without spring valve inside valve cock, and for there being inner tube valve, based on 8mm outside thread, ventilation sectional area is 7mm
2comprise inflating valve body 1, mouth body 1 is provided with 8mm outside thread, be provided with central gas discharge orifice 1.1a in mouth body 1, central gas discharge orifice 1.1a comprises φ 3mm air inlet section 1.1.1a, stage casing 1.1.2a and end 1.1.3a, has the smooth conical surface that φ 5mm-φ 5.6mm is formed in the 1.1.2a of stage casing, nonreturn valve core 3a is provided with in the airflow hole 1.1a of stage casing, nonreturn valve core 3a is set to spherical crown three tooth float, nonreturn valve core 3a top spherical crown and smooth conical surface-conical surface tangent, teeth groove also has 7mm
2ventilation cross section, such valve cock dynamic pressure difference P
2/ P
1=2
2/ 7
2=4/49=1/12.25, becomes original less than 1/10th, have dropped an order of magnitude, is physically called negligible.Inflating valve body 1 end is provided with the internal thread connected with method mouth 6, U.S. mouth 7, and end is threaded with Fa Zui, Mei Zui, complete connection.Inflating valve body 1 top is provided with top end cover 4, is provided with O shape rubber band 5 in top end cover 4.The benefit continued has unified inflatable interface.In order to more securely seal, top end cover 4, as second time cut-off, will do precision around its " O " shape rubber band 5, and the venting of this valve cock is with pressure regulation operation with original the same, and just the flat dentation push rod of pressure gauge lengthens slightly, presses spherical crown top.
Claims (6)
1. a large flux is without spring valve inside valve cock, for tubeless valve cock, it is characterized in that comprising inflating valve body, mouth body is provided with outside thread, central gas discharge orifice is provided with in mouth body, mouth body end is provided with the expansion airflow hole coaxial with central gas discharge orifice, mouth body end thread is connected with bottom head covers, the air-flow path isometrical with expanding airflow hole is offered in bottom head covers, air-flow path correspondingly to communicate with expansion airflow hole is coaxial, form air-flow chamber, bottom head covers separately has exhaust passage, exhaust passage is communicated with air-flow chamber, being provided with in described air-flow chamber can along the nonreturn valve core of air-flow chamber inwall upper and lower displacement, blocked or open the central gas discharge orifice of mouth body by nonreturn valve core.
2. the large flux of one according to claim 1 is without spring valve inside valve cock, it is characterized in that described nonreturn valve core comprises the valve block that external diameter and air-flow chamber connect and the guides stem being arranged at valve block one end, valve block outer wall offers a circle groove, is provided with seal ring in groove.
3. the large flux of one according to claim 2 is without spring valve inside valve cock, and it is characterized in that bottom head covers bottom center offers the pilot hole coordinated with guides stem, guides stem stretches in pilot hole.
4. the large flux of one according to claim 2 is without spring valve inside valve cock, and it is characterized in that central gas discharge orifice is provided with one section of enlarged section, guides stem stretches in enlarged section, and guides stem is cross section is man type tooth post.
5. a large flux is without spring valve inside valve cock, for there being inner tube valve, comprise inflating valve body, mouth body is provided with outside thread, central gas discharge orifice is provided with in mouth body, central gas discharge orifice comprises air inlet section, stage casing and end, the smooth conical surface is had in stage casing, it is characterized in that being provided with nonreturn valve core in the airflow hole of stage casing, nonreturn valve core is set to spherical crown three tooth float, nonreturn valve core top spherical crown and smooth conical surface-conical surface tangent, end is provided with and the internal thread connected with Fa Zui, Mei Zui, end is threaded with Fa Zui, Mei Zui, complete connection.
6. the large flux of one according to claim 1 is without spring valve inside valve cock, it is characterized in that inflating valve body top is provided with top end cover, is provided with O shape rubber band in top end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520851437.6U CN205207795U (en) | 2015-10-30 | 2015-10-30 | Big flux does not have spring valve inside inflating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520851437.6U CN205207795U (en) | 2015-10-30 | 2015-10-30 | Big flux does not have spring valve inside inflating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205207795U true CN205207795U (en) | 2016-05-04 |
Family
ID=55845513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520851437.6U Expired - Fee Related CN205207795U (en) | 2015-10-30 | 2015-10-30 | Big flux does not have spring valve inside inflating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205207795U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351579A (en) * | 2015-10-30 | 2016-02-24 | 汤崇渝 | Large-flux non-spring valve core cycle valve |
| WO2020248312A1 (en) * | 2019-06-11 | 2020-12-17 | 万通智控科技股份有限公司 | Multifunctional external inflating valve and mounting method for loading device of inflating valve |
-
2015
- 2015-10-30 CN CN201520851437.6U patent/CN205207795U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351579A (en) * | 2015-10-30 | 2016-02-24 | 汤崇渝 | Large-flux non-spring valve core cycle valve |
| WO2020248312A1 (en) * | 2019-06-11 | 2020-12-17 | 万通智控科技股份有限公司 | Multifunctional external inflating valve and mounting method for loading device of inflating valve |
| US11518203B2 (en) | 2019-06-11 | 2022-12-06 | Hamaton Automotive Technology Co., Ltd. | Multifunctional external inflating valve and mounting method for loading device of inflating valve |
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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: 20160504 Termination date: 20181030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |