CN114233793B - Nitrogen spring valve core and nitrogen spring - Google Patents
Nitrogen spring valve core and nitrogen spring Download PDFInfo
- Publication number
- CN114233793B CN114233793B CN202111647112.2A CN202111647112A CN114233793B CN 114233793 B CN114233793 B CN 114233793B CN 202111647112 A CN202111647112 A CN 202111647112A CN 114233793 B CN114233793 B CN 114233793B
- Authority
- CN
- China
- Prior art keywords
- hole
- nitrogen spring
- core
- boss
- valve core
- Prior art date
- 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.)
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Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 144
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 72
- 238000007789 sealing Methods 0.000 claims abstract description 38
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 230000002650 habitual effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
- F16F9/325—Constructional features of cylinders for attachment of valve units
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Check Valves (AREA)
Abstract
The application discloses a nitrogen spring valve core and a nitrogen spring, which belong to the field of valve cores and comprise a core cap, wherein a through hole is formed in the center of the core cap, a movable core rod is arranged in the through hole, an air inlet groove is formed in the center of an air charging end of the core rod, and a through hole is formed in the side wall of the core rod and communicated with the air inlet groove; the through hole inflating end is provided with a first step hole, a sealing ring is arranged on a step of the first step hole, a first boss is arranged on the core rod, the step of the first boss can be flush with the step of the first step hole, and the sealing ring is sleeved on the core rod to seal the through hole and is abutted to the step of the first boss to seal a gap between the through hole and the first boss; the core rod can move along the inflation direction to enable the air inlet groove to be communicated with the through hole through the through hole. The outer wall of the core cap is provided with mounting threads; the mounting hole matched with the core cap is provided with a second step hole at the inflation end, the step of the second step hole can limit the movement of the core cap to the inflation end, and the valve core can be prevented from falling off from the nitrogen spring by the structure, and meanwhile, the sealing effect is improved.
Description
Technical Field
The application relates to the field of valve cores, in particular to a nitrogen spring valve core and a nitrogen spring.
Background
The nitrogen valve core is an important part of the nitrogen spring, and mainly plays roles of inflating, sealing and opening exhaust in the inflating and deflating process of the nitrogen spring, and the nitrogen valve core is inflated by adopting high-pressure nitrogen, so that certain potential safety hazards exist. The existing nitrogen valve core is small in core body and is twisted into the nitrogen spring from outside, so that the phenomenon of thread dislocation or thread slipping exists when the installation is wrong or the force is large, and if the phenomenon that the nitrogen valve core falls off under the condition of high pressure can not be found in time.
Aiming at the problems in the prior art, the application combines the design and the use experience of the related field for many years, and is aided with the too strong professional knowledge, so as to design and manufacture the nitrogen spring valve core and the nitrogen spring, thereby overcoming the defects.
Disclosure of Invention
The nitrogen spring valve core and the nitrogen spring provided by the application can prevent the valve core from falling off from the nitrogen spring and improve the sealing effect.
In order to achieve the above purpose, the technical scheme adopted by the application is as follows: the nitrogen spring valve core comprises a core cap, wherein a through hole is formed in the center of the core cap, a movable core rod is arranged in the through hole, an air inlet groove is formed in the center of an air charging end of the core rod, and a through hole communicated with the air inlet groove is formed in the side wall of the core rod;
the through hole inflating end is provided with a first step hole, a sealing ring is arranged on the step of the first step hole, the core bar is provided with a first boss, the step of the first boss can be flush with the step of the first step hole, and the sealing ring is sleeved on the core bar to seal the through hole and abut against the step of the first boss to seal the gap between the through hole and the first boss;
the core rod can move along the inflation direction to enable the air inlet groove to be communicated with the through hole through the through hole.
Preferably, the outer wall of the core cap is provided with mounting threads;
the mounting hole matched with the core cap is provided with a second step hole at the air charging end, and the step of the second step hole can limit the movement of the core cap to the air charging end.
Preferably, the sealing ring is fixed between the step of the first step hole and the step of the second step hole.
Preferably, the diameter of the sealing ring is smaller than the diameter of the first step hole and larger than the diameter of the first boss.
Preferably, the thickness of the sealing ring is greater than the dimension of the through hole in the axial direction of the core rod.
Preferably, the through hole further comprises a large-aperture section, the large-aperture section is communicated with the first step hole, and the other end of the large-aperture section is provided with a small-aperture section;
the large-aperture section diameter is larger than the first boss diameter, and the small-aperture section diameter is smaller than the first boss diameter.
Preferably, the end of the core rod far away from the air charging end is provided with a second boss, and the maximum size of the second boss is larger than the diameter of the small-aperture section.
Preferably, the end of the core cap far away from the inflation end is provided with a waist-shaped boss, and the small-aperture section is arranged on the waist-shaped boss.
The nitrogen spring comprises a mounting hole and the nitrogen spring valve core, wherein the nitrogen spring valve core is connected with the mounting hole through the inside of the nitrogen spring;
the mounting hole comprises a second step hole, a small hole section of the second step hole is communicated with the inflation inlet, and a large hole section of the second step hole is communicated with the inside of the nitrogen spring;
the core cap and the sealing ring of the nitrogen spring valve core are abutted on the step of the second step hole.
The application has the advantages that:
1. the action of the inflation and deflation valve core is similar to that of the traditional structure, so that the habitual operation of a user is ensured, but the sealing, inflation and deflation principles of the inflation and deflation valve core are completely different from those of the traditional structure. According to the application, the through hole structure is formed on the side wall of the core bar, and when in sealing, compared with the linear contact of the sealing ring and the through hole, the linear contact of the sealing ring and the traditional surface can realize the switching of the gas path more quickly, so that the sealing effect is more excellent.
2. The valve core and the nitrogen spring are connected in a mode of being installed from inside to outside, and the valve core is prevented from falling off from the nitrogen spring by adopting the step of the second step hole of the installation hole.
Drawings
FIG. 1 is a cross-sectional view of a nitrogen spring valve core;
FIG. 2 is a cross-sectional view of a nitrogen spring valve core when inflated;
FIG. 3 is a front cross-sectional view of a nitrogen spring valve core cap;
FIG. 4 is a side cross-sectional view of a nitrogen spring valve core cap;
FIG. 5 is a schematic illustration of a nitrogen spring valve core mounted on a nitrogen spring;
fig. 6 is an enlarged view of a portion of the nitrogen spring valve core of the present application in the mounting hole.
In the figure: 1-core cap, 2-core bar, 3-sealing ring, 4-air inlet groove, 5-through hole, 6-first step hole, 7-first boss, 8-second boss, 9-through hole, 10-mounting hole, 11-second step hole, 12-waist-shaped boss, 91-large aperture section, 92-small aperture section.
Detailed Description
The present application is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
As shown in fig. 1 to 6, a nitrogen spring valve core is installed on a nitrogen spring, and unlike a conventional installation structure, the nitrogen spring valve core of the present application is installed on an installation hole 10 of a nitrogen spring through an inside, and the falling off of the nitrogen spring valve core from the nitrogen spring installation hole 10 is prevented by using a related limit structure.
Specifically, the nitrogen spring valve core comprises a core cap 1, the outer wall of the core cap 1 is provided with mounting threads, a mounting hole 10 matched with the core cap 1 is provided with a second step hole 11 at the inflation end, and the movement of the core cap 1 to the inflation end can be limited by using the step of the second step hole 11.
The core cap 1 is provided with a through hole 9 in the center, a movable core rod 2 is arranged in the through hole 9, an air inlet groove 4 is arranged in the center of the air charging end of the core rod 2, through holes 5 which are communicated with the air inlet groove 4 are arranged on the side wall of the core rod 2, a plurality of through holes 5 can be arranged, and the circumferences of the through holes 5 are uniformly distributed on the side wall of the core rod 2.
The inflatable end of the through hole 9 is provided with a first step hole 6, the step of the first step hole 6 is provided with a sealing ring 3, the sealing ring 3 can be fixed between the step of the first step hole 6 and the step of the second step hole 11 after the core cap 1 is matched with the mounting hole 10, the sealing ring 3 is sleeved on the core rod 2 at the same time, the thickness of the sealing ring 3 is larger than the axial dimension of the through hole 5 on the core rod 2, and thus the through hole 5 can be sealed by the sealing ring 3, and the core rod 2 can move along the inflation direction to enable the air inlet groove 4 to be communicated with the through hole 9 through the through hole 5, so that inflation and deflation of the valve core are realized.
Be equipped with first boss 7 on the core bar 2, because core bar 2 has the trend that moves to the end of aerifing under nitrogen spring internal pressure effect, consequently can make first boss 7 and sealing washer 3 butt, the step of first boss 7 can be with the step parallel and level of first step hole 6, and sealing washer 3 diameter is less than the aperture of first step hole 6, and is greater than the diameter of first boss 7, and sealing washer 3 can seal the clearance of through-hole 9 and first boss 7 like this to guarantee the leakproofness of valve core.
The action of the inflation and deflation valve core is similar to that of the traditional structure, so that the habitual operation of a user is ensured, but the sealing, inflation and deflation principles of the inflation and deflation valve core are completely different from those of the traditional structure. According to the application, the through hole 5 enables the side wall of the core bar 2 to form a through hole structure, and when in sealing, compared with the traditional surface contact, the linear contact between the sealing ring 3 and the through hole 5 can realize the opening and closing of the gas path more rapidly, so that the sealing effect is more excellent.
The through hole 9 of the application also comprises a large-aperture section 91, the diameter of the large-aperture section 91 is larger than that of the first boss 7, the large-aperture section 91 is communicated with the first step hole 6, the first boss 7 of the core rod 2 can conveniently move in the through hole 9, the other end of the large-aperture section 91 is provided with a small-aperture section 92, the diameter of the small-aperture section 92 is smaller than that of the first boss 7, and the application can limit the moving distance of the core rod 2 in the through hole 9 by matching the step between the small-aperture section 92 and the large-aperture section 91 with the first boss 7.
In order to avoid the core rod 2 from being separated from the through hole 9 due to the pressure in the nitrogen spring, the end part of the core rod 2 far away from the air charging end is provided with a second boss 8, and the maximum size of the second boss 8 is larger than the diameter of the small-bore section 92. In addition, in order to facilitate the installation of the valve core, the end part of the core cap 1 far away from the air charging end is provided with the waist-shaped boss 12, the core cap 1 is conveniently rotated by utilizing the waist-shaped boss 12, and the small-aperture section 92 is arranged on the waist-shaped boss 12.
Further, the application also provides a nitrogen spring, which comprises the mounting hole 10 and the nitrogen spring valve core, wherein the nitrogen spring valve core is connected with the mounting hole 10 through the inside of the nitrogen spring.
The mounting hole 10 comprises a second step hole 11, a small hole section of the second step hole 11 is communicated with the inflation inlet, a large hole section of the second step hole 11 is communicated with the inside of the nitrogen spring, and the core cap 1 and the sealing ring 3 of the valve core of the nitrogen spring are abutted on the step of the second step hole 11.
The specific inflation and deflation process of the application comprises the following steps:
when the nitrogen spring valve core is used for inflating, gas enters the gas inlet groove 4 to push the core rod 2 to move towards the inside of the nitrogen spring, at the moment, the through hole 5 on the core rod 2 moves along with the core rod 2, and after the edge of the through hole 5 moves out of the sealing area of the sealing gasket, the gas enters the nitrogen spring through a gap between the through hole 5 and the core cap 1, so that the nitrogen spring is inflated safely.
When the air pressure in the nitrogen spring is too high, the core rod 2 is pressed to enable the core rod 2 to move upwards, after the edge of the through hole 5 moves out of the sealing area of the sealing gasket, the internal pressure is discharged, and when the pressure is discharged to the required pressure, the air discharge can be stopped, and the air discharge work is completed.
It should be understood that these examples are for the purpose of illustrating the application only and are not intended to limit the scope of the application. Furthermore, it is to be understood that various changes, modifications and/or variations may be made by those skilled in the art after reading the technical content of the present application, and that all such equivalents are intended to fall within the scope of the present application as defined in the appended claims.
Claims (9)
1. The nitrogen spring valve core is characterized by comprising a core cap, wherein a through hole is formed in the center of the core cap, a movable core rod is arranged in the through hole, an air inlet groove is formed in the center of an air charging end of the core rod, and a through hole is formed in the side wall of the core rod and communicated with the air inlet groove;
the through hole inflating end is provided with a first step hole, a sealing ring is arranged on the step of the first step hole, the core bar is provided with a first boss, the step of the first boss can be flush with the step of the first step hole, and the sealing ring is sleeved on the core bar to seal the through hole and abut against the step of the first boss to seal the gap between the through hole and the first boss;
the core rod can move along the inflation direction to enable the air inlet groove to be communicated with the through hole through the through hole.
2. A nitrogen spring valve core according to claim 1, wherein the outer wall of said core cap is provided with mounting threads;
the mounting hole matched with the core cap is provided with a second step hole at the air charging end, and the step of the second step hole can limit the movement of the core cap to the air charging end.
3. A nitrogen spring valve core according to claim 2, wherein said sealing ring is secured between a step of said first stepped bore and a step of said second stepped bore.
4. A nitrogen spring valve core according to claim 3, wherein said seal ring diameter is smaller than the diameter of said first stepped bore and larger than the diameter of said first boss.
5. A nitrogen spring valve core according to claim 1, wherein the thickness of said seal ring is greater than the dimension of said through hole in the axial direction of the core rod.
6. A nitrogen spring valve core according to claim 1, wherein said through hole further comprises a large aperture section, said large aperture section communicating with said first stepped bore, said large aperture section having a small aperture section at the other end;
the large-aperture section diameter is larger than the first boss diameter, and the small-aperture section diameter is smaller than the first boss diameter.
7. A nitrogen spring valve core according to claim 6, wherein said core rod end remote from the inflation end is provided with a second boss, said second boss having a largest dimension that is larger than the diameter of the small bore section.
8. A nitrogen spring valve core according to claim 6, wherein said end of said core cap remote from the inflation end is provided with a waist-shaped boss, said small bore section being provided on said waist-shaped boss.
9. A nitrogen spring, characterized by comprising a mounting hole and a nitrogen spring valve core according to any one of claims 1 to 8, wherein the nitrogen spring valve core is connected with the mounting hole through the inside of the nitrogen spring;
the mounting hole comprises a second step hole, a small hole section of the second step hole is communicated with the inflation inlet, and a large hole section of the second step hole is communicated with the inside of the nitrogen spring;
the core cap and the sealing ring of the nitrogen spring valve core are abutted on the step of the second step hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111647112.2A CN114233793B (en) | 2021-12-31 | 2021-12-31 | Nitrogen spring valve core and nitrogen spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111647112.2A CN114233793B (en) | 2021-12-31 | 2021-12-31 | Nitrogen spring valve core and nitrogen spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114233793A CN114233793A (en) | 2022-03-25 |
| CN114233793B true CN114233793B (en) | 2023-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111647112.2A Active CN114233793B (en) | 2021-12-31 | 2021-12-31 | Nitrogen spring valve core and nitrogen spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114233793B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2984901A (en) * | 2000-12-28 | 2002-07-04 | Col-Ven S.A. | Pressure-controlled three-way valve device, transport vehicle having tire inflation pressure control and method for remote pressure-controlling the valve device |
| CN201304242Y (en) * | 2008-11-20 | 2009-09-09 | 庄德诚 | Air-filled toy with spring structure uni-directional gas charging valve |
| CN206669039U (en) * | 2017-04-19 | 2017-11-24 | 高密同创气门芯有限公司 | A kind of nitrogen spring valve inside |
| CN110081213A (en) * | 2018-08-01 | 2019-08-02 | 高密同创气门芯有限公司 | A kind of valve inside and nitrogen gas spring |
| CN110546418A (en) * | 2018-03-29 | 2019-12-06 | 太平洋工业株式会社 | valve element and tire valve |
| CN210739239U (en) * | 2019-10-25 | 2020-06-12 | 高密同创气门芯有限公司 | Valve inside and nitrogen spring |
| JP2020148207A (en) * | 2019-03-11 | 2020-09-17 | 太平洋工業株式会社 | Valve core |
| US20200408314A1 (en) * | 2018-03-29 | 2020-12-31 | Pacific Industrial Co., Ltd. | Valve core |
| CN212690947U (en) * | 2020-09-30 | 2021-03-12 | 高密同创气门芯有限公司 | Valve inside of explosion-proof tyre |
| CN213235900U (en) * | 2020-08-25 | 2021-05-18 | 高密同创气门芯有限公司 | Valve inside and nitrogen spring |
| CN213451895U (en) * | 2020-07-09 | 2021-06-15 | 上海峰信仪器仪表有限公司 | One-way non-return inflation valve |
-
2021
- 2021-12-31 CN CN202111647112.2A patent/CN114233793B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2984901A (en) * | 2000-12-28 | 2002-07-04 | Col-Ven S.A. | Pressure-controlled three-way valve device, transport vehicle having tire inflation pressure control and method for remote pressure-controlling the valve device |
| CN201304242Y (en) * | 2008-11-20 | 2009-09-09 | 庄德诚 | Air-filled toy with spring structure uni-directional gas charging valve |
| CN206669039U (en) * | 2017-04-19 | 2017-11-24 | 高密同创气门芯有限公司 | A kind of nitrogen spring valve inside |
| CN110546418A (en) * | 2018-03-29 | 2019-12-06 | 太平洋工业株式会社 | valve element and tire valve |
| US20200408314A1 (en) * | 2018-03-29 | 2020-12-31 | Pacific Industrial Co., Ltd. | Valve core |
| CN110081213A (en) * | 2018-08-01 | 2019-08-02 | 高密同创气门芯有限公司 | A kind of valve inside and nitrogen gas spring |
| JP2020148207A (en) * | 2019-03-11 | 2020-09-17 | 太平洋工業株式会社 | Valve core |
| CN210739239U (en) * | 2019-10-25 | 2020-06-12 | 高密同创气门芯有限公司 | Valve inside and nitrogen spring |
| CN213451895U (en) * | 2020-07-09 | 2021-06-15 | 上海峰信仪器仪表有限公司 | One-way non-return inflation valve |
| CN213235900U (en) * | 2020-08-25 | 2021-05-18 | 高密同创气门芯有限公司 | Valve inside and nitrogen spring |
| CN212690947U (en) * | 2020-09-30 | 2021-03-12 | 高密同创气门芯有限公司 | Valve inside of explosion-proof tyre |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114233793A (en) | 2022-03-25 |
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| SE01 | Entry into force of request for substantive examination | ||
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Address after: 261500 no.1908, Fenghuang Street (West), Liquan street, Gaomi City, Weifang City, Shandong Province Patentee after: Shandong Tongchuang Precision Technology Co.,Ltd. Country or region after: China Patentee after: SHANDONG HIMILE VALVE Co.,Ltd. Address before: 261500 no.1908, Fenghuang Street (West), Liquan street, Gaomi City, Weifang City, Shandong Province Patentee before: GAOMI TONGCHUANG VALVE CORE Co.,Ltd. Country or region before: China Patentee before: SHANDONG HIMILE VALVE Co.,Ltd. |