CN202501056U - Ventilation valve of pump oil tank - Google Patents
Ventilation valve of pump oil tank Download PDFInfo
- Publication number
- CN202501056U CN202501056U CN2011205579845U CN201120557984U CN202501056U CN 202501056 U CN202501056 U CN 202501056U CN 2011205579845 U CN2011205579845 U CN 2011205579845U CN 201120557984 U CN201120557984 U CN 201120557984U CN 202501056 U CN202501056 U CN 202501056U
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- CN
- China
- Prior art keywords
- fuel tank
- oil tank
- valve body
- valve
- air inlet
- 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.)
- Expired - Fee Related
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Safety Valves (AREA)
Abstract
The utility model discloses a ventilation valve of a pump oil tank. The technical scheme is as follows: the ventilation valve of the pump oil tank comprises a valve body; an air inlet valve core and an air outlet valve core are arranged along an axial direction of the valve body; the air inlet valve core and the air outlet valve core are respectively set as a one-way valve which controls in or out of air; the air outlet valve core is opened as a stepped hole, a small hole end is communicated with an internal part of the oil tank, and a big hole end part is provided with a hollow elastic pin used for pressing a spring and a steel ball; and the air inlet valve core is also opened as a stepped hole, a small hole end is communicated with an external part of the oil tank, and a big hole end part is provided with a hollow elastic pin used for pressing a spring and a steel ball. The utility model is simple in structure, the two valve cores are set as opposite one-way valves, the in or out of the air are respectively controlled by utilizing pressure difference in and out of the oil tank, a purpose that the oil tank is needed to be communicated with an atmosphere environment when a manual pump is working is achieved, and a purpose that the oil tank is isolated from the atmosphere environment to protect hydraulic oil when the manual pump is not working also is achieved.
Description
Technical field
The utility model relates to the vent valve device of a kind of pump with fuel tank, the vent valve device on particularly a kind of hydraulic hand-pump fuel tank.
Background technique
Hydraulic hand-pump is used for power source to the upender of cab of heavy truck being provided; In proper working order for guaranteeing hand pump; Needs guarantee that the fluid liquid level pressure (P liquid) of the fuel tank that stores hydraulic pressure is oily is approaching or equal atmosphere environment pressure (P), that is to say that fuel tank must communicate with atmosphere environment.In the existing technology, a kind of is that oil dropping apparatus is installed a common vent valve, but this common vent valve makes dust storm muddy water be easy to invade, and the high-pressure injection current when cleaning vehicle get into, and automobile jolts in the process of moving and makes fluid excessive easily; Be that installing a kind of is the vent valve of CN201916560U like publication number in addition; This vent valve is installed the bonnet of inverted U-shaped shape at an end that communicates with atmosphere environment; Air vent extends up to spool along bonnet side wall, has so just prevented the entering of dust storm muddy water and high Pressure-washing apparatus water-spraying stream.But the defective of above-mentioned existing technology is that at any time vent valve all keeps being interlinked to the outside in the fuel tank, because the temperature inversion in the middle of the atmosphere environment is uneven, so that aqueous vapor is easy to get into fuel tank internal, causes the emulsion deterioration of hydraulic oil, influences the work of hand pump.
Summary of the invention
To the defective of existing technology, the technical problem that the utility model solves is: provide a kind of fuel tank that when hand pump work, keeps to communicate with atmosphere environment, the vent valve that maintenance fuel tank and atmosphere environment completely cut off when manual air pump inoperative.
The technological scheme that the utility model solves the problems of the technologies described above is: pump comprises valve body with the vent valve of fuel tank; Axially offer air inlet spool and exhaust plug along valve body; Air inlet spool and exhaust plug are arranged to the one-way valve that control air advances or goes out respectively.
Further preferred version: exhaust plug is offered into step hole, and an end of aperture section is communicated with fuel tank internal, and the hollow elastic pin is installed in the end of macropore section, is used for holddown spring and steel ball; The air inlet spool is also offered into step hole, an end of aperture section and fuel tank external communications, and the hollow elastic pin is installed in the end of macropore section, is used for holddown spring and steel ball.
Further preferred version: valve body lower end is provided with screw thread and is used for being connected with fuel tank; Valve body circumferentially is equiped with 0 RunddichtringO outward.
Further preferred version: valve body also is equiped with inverted U-shaped bonnet, itself and valve body interference fit.
The technique effect of the utility model:
1, vent valve adopts double spool, and is arranged to one-way valve, and a control air advances, and another is controlled out; When hand pump was bought oil, the fuel tank external and internal pressure was poor like this, forced one-way valve opens or closed; Reached the purpose that fuel tank communicates with atmosphere environment, in hand pump working room not, the air inlet spool is closed with the spool of giving vent to anger; Stop the atmosphere environment air to communicate, reached the minimizing aqueous vapor and got into fuel tank internal, protected hydraulic oil not contaminated with fuel tank internal;
2, the inverted U-shaped bonnet of valve body installing is even if also can prevent the entering of rainwater or carwash high pressure splash water like this when hand pump is bought oil;
3, the screw thread of valve body lower end and 0 RunddichtringO make things convenient for being connected and sealing of vent valve and fuel tank.
Description of drawings
Fig. 1 is that the utility model is axially analysed and observe the structural representation under the state.
Fig. 2 is that the utility model is axially analysed and observe under the state assembling schematic representation with fuel tank.
10. valve body.
20. bonnet, 21. grooves.
30. air inlet spool.
40. exhaust plug, 31=41. resilient key, 32=42. spring, 33=43. steel ball.
50.O shape seal ring.
100. fuel tank.
Embodiment
Elaborate below in conjunction with the embodiment of accompanying drawing to the utility model, the advantage of further illustrating the utility model reaches the contribution with respect to existing technology.
As shown in Figure 1, valve body 10 is offered two parallel spools vertically, and the spool of the side that wherein keeps left is an exhaust plug 40, offers into the step hole shape, an end of spool aperture section and fuel tank 100 internal communication; Macropore section installing steel ball 43 and spring 42; Thereby hollow elastic pin 41 is fixed on big bore ends is used for holddown spring 42 and steel ball 43 formation exhaust check valves.Be air inlet spool 30 on the right side, also offer into the step hole shape, an end of spool macropore section is communicated with fuel tank internal; Macropore section installing steel ball 33 and spring 32; Thereby hollow elastic pin 31 is fixed on macropore section the other end is used for holddown spring 32 and steel ball 33 formation breather check valves.The rigidity of spring 32,42 is very little, inside and outside satisfying fuel tank, has under certain differential pressure conditions, and one-way valve can be opened, can sealed valve core under the no differential pressure conditions.The bonnet 20 of U-shaped adopts interference fit to tip upside down on the end that valve body 10 communicates with atmosphere environment; The sidewall of bonnet 20 has groove 21 and extends to bonnet 20 tops always and be communicated with spool; This groove 21 forms the air vent that the fuel tank inside and outside is communicated with the cooperation of valve body 10 outer walls, and the arrow among Fig. 1 is depicted as the circulation between air and the fuel tank internal.
As shown in Figure 2, valve body 10 circumferentially has groove and is used to install O-ring seals, and the groove lower end has screw thread and is used for being threaded with fuel tank 100 and sealing.The utility model is work like this, and when hand pump was bought oil, plunger raise, and fuel tank liquid level forms instantaneous vacuum, and the pressure that the fuel tank inside and outside differential pressure impels the steel ball 33 of air inlet spool 30 to overcome spring 32 is the air inlet state of opening, and after pressure reduction disappeared, air inlet spool 30 was closed; And when oil hydraulic cylinder in the hydraulic system or other force application parts during to tank drainback; Fluid increases liquid level and raises; Tank internal pressure impels steel ball 43 to overcome the pressure of spring 42 than the big formation pressure reduction of external pressure; Thereby exhaust plug 30 is in opens exhaust condition, after pressure reduction disappeared, exhaust plug 40 was closed.
The utility model is simple in structure; Article two, spool is arranged to opposite one-way valve; Utilize fuel tank inside and outside differential pressure the advancing or go out of control air respectively; The purpose that fuel tank need communicate with atmosphere environment when promptly having reached hand pump work, fuel tank and the isolated purpose of protecting hydraulic oil of atmosphere environment when having reached manual air pump inoperative again.
Claims (5)
1. pump comprises valve body (10) with the vent valve of fuel tank; It is characterized in that axially offering air inlet spool (30) and exhaust plug (40) along said valve body (10); Said air inlet spool (30) and exhaust plug (40) are arranged to the one-way valve that control air advances or goes out respectively.
2. pump according to claim 1 is with the vent valve of fuel tank; It is characterized in that said exhaust plug (30) offers into step hole; One end of aperture section is communicated with fuel tank internal, and hollow elastic pin (31) is installed in the end of macropore section, is used for holddown spring (32) and steel ball (33); Said air inlet spool (40) is also offered into step hole, an end of aperture section and fuel tank external communications, and hollow elastic pin (41) is installed in the end of macropore section, is used for holddown spring (42) and steel ball (43).
3. pump according to claim 1 is characterized in that with the vent valve of fuel tank said valve body (10) lower end is provided with screw thread and is used for being connected with fuel tank.
4. pump according to claim 3 is characterized in that the outer 0 shape seal ring (50) that circumferentially is equiped with of said valve body (10) with the vent valve of fuel tank.
5. pump according to claim 1 is characterized in that with the vent valve of fuel tank said valve body (10) also is equiped with inverted U-shaped bonnet (20), itself and valve body (10) interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205579845U CN202501056U (en) | 2011-12-27 | 2011-12-27 | Ventilation valve of pump oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205579845U CN202501056U (en) | 2011-12-27 | 2011-12-27 | Ventilation valve of pump oil tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202501056U true CN202501056U (en) | 2012-10-24 |
Family
ID=47037670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205579845U Expired - Fee Related CN202501056U (en) | 2011-12-27 | 2011-12-27 | Ventilation valve of pump oil tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202501056U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062463A (en) * | 2013-01-16 | 2013-04-24 | 成都杰森输配设备实业有限公司 | Breather valve on basis of thiophane liquid storage tank and method for mounting breather valve |
| CN103542147A (en) * | 2013-09-25 | 2014-01-29 | 浙江吉利控股集团有限公司 | Vent valve structure |
| CN105822562A (en) * | 2016-05-10 | 2016-08-03 | 上海沃耐泵阀制造有限公司 | Vacuum water diversion tank capable of working for long time |
| CN107269599A (en) * | 2017-06-30 | 2017-10-20 | 安徽江淮汽车集团股份有限公司 | It is dynamic to turn oil can cap assembly |
| CN109668040A (en) * | 2019-01-08 | 2019-04-23 | 深圳大学 | Air pressure electronics installs lube plant additional to one kind automatically at regular time and quantity |
| CN114109933A (en) * | 2021-11-19 | 2022-03-01 | 中国直升机设计研究所 | Non-pressurized hydraulic oil tank component with pressure maintaining function |
| WO2022041836A1 (en) * | 2020-08-31 | 2022-03-03 | 宁德时代新能源科技股份有限公司 | Valve, battery, and powered device |
| CN115217936A (en) * | 2021-11-29 | 2022-10-21 | 广州汽车集团股份有限公司 | Bidirectional ventilation structure and gearbox |
-
2011
- 2011-12-27 CN CN2011205579845U patent/CN202501056U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062463A (en) * | 2013-01-16 | 2013-04-24 | 成都杰森输配设备实业有限公司 | Breather valve on basis of thiophane liquid storage tank and method for mounting breather valve |
| CN103542147A (en) * | 2013-09-25 | 2014-01-29 | 浙江吉利控股集团有限公司 | Vent valve structure |
| CN103542147B (en) * | 2013-09-25 | 2016-09-21 | 浙江吉利控股集团有限公司 | A kind of vent valve structure |
| CN105822562B (en) * | 2016-05-10 | 2018-01-19 | 上海沃耐泵阀制造有限公司 | It is a kind of can long-term work vacuum diversion volume |
| CN105822562A (en) * | 2016-05-10 | 2016-08-03 | 上海沃耐泵阀制造有限公司 | Vacuum water diversion tank capable of working for long time |
| CN107269599B (en) * | 2017-06-30 | 2018-09-11 | 安徽江淮汽车集团股份有限公司 | Turn oil can cap assembly |
| CN107269599A (en) * | 2017-06-30 | 2017-10-20 | 安徽江淮汽车集团股份有限公司 | It is dynamic to turn oil can cap assembly |
| CN109668040A (en) * | 2019-01-08 | 2019-04-23 | 深圳大学 | Air pressure electronics installs lube plant additional to one kind automatically at regular time and quantity |
| WO2022041836A1 (en) * | 2020-08-31 | 2022-03-03 | 宁德时代新能源科技股份有限公司 | Valve, battery, and powered device |
| US12018764B2 (en) | 2020-08-31 | 2024-06-25 | Contemporary Amperex Technology Co., Limited | Valve, battery and power consumption device |
| CN114109933A (en) * | 2021-11-19 | 2022-03-01 | 中国直升机设计研究所 | Non-pressurized hydraulic oil tank component with pressure maintaining function |
| CN114109933B (en) * | 2021-11-19 | 2023-04-28 | 中国直升机设计研究所 | Non-pressurized hydraulic oil tank assembly with pressure maintaining function |
| CN115217936A (en) * | 2021-11-29 | 2022-10-21 | 广州汽车集团股份有限公司 | Bidirectional ventilation structure and gearbox |
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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: 20121024 Termination date: 20171227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |