CN101509565B - Hand valve with one-way function - Google Patents
Hand valve with one-way function Download PDFInfo
- Publication number
- CN101509565B CN101509565B CN2009101315883A CN200910131588A CN101509565B CN 101509565 B CN101509565 B CN 101509565B CN 2009101315883 A CN2009101315883 A CN 2009101315883A CN 200910131588 A CN200910131588 A CN 200910131588A CN 101509565 B CN101509565 B CN 101509565B
- Authority
- CN
- China
- Prior art keywords
- valve
- passage
- piston
- sealing lip
- pressure
- 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.)
- Active
Links
Images
Landscapes
- Lift Valve (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
A one-way functional hand valve comprises a valve body, a valve core component arranged inside the valve body and a handle with a cam. The valve core component comprises a valve rod, a spring arranged on the periphery of a valve rod, a spring seat (1) used for placing the spring and a piston (2) with a hole (3). The external surface of the cam of the handle is pressed against the upper end of the valve rod, a fluid passage is formed between the spring seat (1) and the piston (2), and the fluid passage is communicated with the hole (3). The valve is equipped with a vale inlet (13) and a valve outlet (14), wherein the valve inlet (13) is communicated with the hole (3). The characteristic of the hand valve lies in that: a one-way functional part is arranged in the fluid passage.
Description
Technical field
The present invention relates to a kind of hand valve and especially relate to a kind of braking hand valve with integrated non-return valve function.
Background technique
In the braking system of large vehicle, especially in the braking system of lorry, adopt air brake valve to implement braking usually.The working principle of this valve is to promote the motion of the piston in the brake valve by the pressure difference that the pressurized air that the brake valve entry end is imported forms in atmospheric pressure cavity, thereby reaches braking.Therefore, in braking process, problems such as the leakage of gas and backflow will directly have influence on the validity and the Security of braking.For this reason, in actual applications, usually can adopt the mode of pipe joint connect an one-way valve at the inlet front end of braking hand valve, gas backstreaming when preventing that air pressure descends in the gas circuit, the entry end air pressure of hand valve descends thereupon, causes braking failure.And this just need install an one-way valve in addition when the hand valve is installed, thereby makes installation process become complicated, the efficiency of assembling step-down.
Summary of the invention
Therefore, the objective of the invention is to overcome above-mentioned defective of the prior art, a kind of novel hand valve that is integrated with one-way valve is provided.This hand valve comprises: a kind of hand valve with one-way function, it comprises: valve body is arranged on the mangetic core assembly of valve inner and has the handle of cam.The piston that described mangetic core assembly comprises valve rod, is arranged on the spring of valve rod periphery, is used to place the spring seat of spring and has the hole.The outer surface of the cam of handle is pressed against the upper end of valve rod, forms the fluid passage between spring seat and the piston, and this fluid passage is communicated with the hole.Described valve is provided with valve inlet and valve outlet port, and wherein said valve inlet communicates with hole on the piston.In addition, the parts with one-way function are set in described fluid passage.By this structure, hand valve and one-way valve are organically combined, thereby improved the efficiency of assembling of complete machine, the occupied space of whole system is reduced, help the miniaturization of equipment.
Preferably, described parts with one-way function are one-way valve.For comparatively large-scale valve assembly, this structure is feasible.
Preferably, described parts with one-way function are seal ring, and further preferably, described seal ring comprises first sealing lip of fitting with piston seat and second sealing lip of fitting with piston.By this structure, even in the less valve assembly of structure, function that too can integrated one-way valve.Though often use seal ring in the valve assembly, also do not occur with the design of seal ring as one-way valve.The present invention is novel, and compact structure can be widely used in various application.
The accompanying drawing summary
Fig. 1 is the sectional view of the preferred embodiment of the hand valve with one-way function of the present invention;
Fig. 2 is the partial enlarged drawing of the one-way function part of the hand valve that circle 4 is irised out among Fig. 1.
Embodiment
Referring now to Fig. 1 explanation detailed in addition to the preferred embodiments of the present invention.Hand valve of the present invention comprises valve body, is arranged on the mangetic core assembly of valve inner, and handle is with the cam of the upper end butt that is connected root part of handle and outer surface and mangetic core assembly.Wherein spool comprises valve rod, is arranged on valve rod spring on every side, spring seat 1 and piston 2, and the outer surface of wherein said cam is connected to the upper end of valve rod.Spring seat 1 is assembled in the piston 2, and spring mounts elastically, thus when handle when the left side of Fig. 1 turns to the right side of Fig. 1, under the pressure of cam outer face, valve rod moves down, pressure spring drives spring seat 1 simultaneously and piston 2 moves down.
Piston 2 is provided with hole 3, and after spring seat 1 and piston 2 fitted together, between formed the fluid passage, and the fluid that comes from the outside (gas or liquid) 13 enters valve inner by this hole 3 from entering the mouth, and promptly enters above-mentioned fluid passage.Setting has the parts of one-way function in the fluid passage, thereby described fluid passage is divided into first passage 11 and 12 two parts of second channel.
Described parts with one-way function can adopt related domain one-way valve commonly used, still for the consideration of compact structure aspect, the present invention proposes further improvement project.
Preferably, as shown in Figure 2, in this embodiment, it is the form of the seal ring 6 of U-shaped that described parts with one-way function can adopt tangent plane.Wherein sealing circle 6 has two sealing lips that stretch out 5 and 7, and these two sealing lips at one end connect, and form U-shaped.The U-shaped of described seal ring bottom is near the inwall of piston 2, and by the formed opening of two sealing lips towards the center of described valve, thereby go up the lower surface of sealing lip 5 applying spring seats 1, the upper surface of lower seal lip 7 applying pistons 2 bottoms.
When the fluid from inlet 13 arrives first passage 11 by the vent on the piston 23, move downward under the effect of last sealing lip 5 pressure in first passage 11 of seal ring 6, separate with spring seat 1, form passage, thereby first passage and second channel are communicated with, compressed fluid in the first passage 11 arrives second channel 12 by this passage, discharges from fluid output 14 then.
When the hydrodynamic pressure from inlet 13 descends, the pressure of first passage 11 will be less than the pressure of second channel 12, both direction motion up and down respectively under the pressure effect in second channel 12 of the last sealing lip 5 of seal ring 6 and lower seal lip 7, sealing lip 5 is fitted with the lower surface of spring seat 1 form sealing, lower seal lip 7 forms sealing with the internal surface of piston 2, thereby the compressed fluid pressure of second channel 12 just can reverse flow, pressure with first passage 11 reduces, thereby plays the effect of one-way flow.
In order to be applicable to various fluid, for example some fluid may have corrosivity, and seal ring of the present invention can adopt erosion-resisting material to make, if may have solid particle in the fluid, seal ring then of the present invention can adopt high-abrasive material to make.Those skilled in the art can be selected the material of seal ring according to actual needs, and this paper will no longer be given unnecessary details.
Below in conjunction with the preferred embodiments of the present invention accompanying drawing technological scheme of the present invention has been made detailed description, yet these are described and accompanying drawing only is in order to allow those skilled in the art be more readily understood the present invention, but not the present invention is limited.Those skilled in the art can make various conspicuous modifications to technological scheme under instruction of the present invention, and these modifications are included within the scope of the present invention.Therefore, scope of the present invention should be defined by the content of claims.
Claims (6)
1. hand valve with one-way function, it comprises: valve body, be arranged on the mangetic core assembly of valve inner and have the handle of cam,
Wherein, described mangetic core assembly comprises: valve rod, be arranged on the spring of valve rod periphery, and be used to place the spring seat (1) of spring and have the piston (2) of hole (3),
The outer surface of the cam of handle is pressed against the upper end of valve rod, forms the fluid passage between spring seat (1) and the piston (2), and this fluid passage is communicated with hole (3),
Described valve is provided with valve inlet (13) and valve outlet port (14), and wherein said valve inlet (13) communicates with hole (3),
Parts (6) with one-way function are set in described fluid passage,
It is characterized in that described parts (6) with one-way function are that tangent plane is the seal ring (6) of U-shaped, it comprises first sealing lip (5) of fitting with described spring seat (1) and second sealing lip (7) of fitting with described piston (2).
2. hand valve according to claim 1 is characterized in that: described seal ring (6) is divided into first passage (11) and second channel (12) with described fluid passage.
3. hand valve according to claim 2, it is characterized in that: when the time from described inlet (13) input compressed fluid, described first sealing lip (5) moves downward under the pressure of first passage (11), thereby described first passage (11) is connected with second channel (12).
4. hand valve according to claim 2, it is characterized in that: when the hydrodynamic pressure from described inlet (13) input descends, the pressure of first passage (11) is less than the pressure of second channel (12), described first sealing lip (5) and second sealing lip (7) make progress respectively, move downward under the pressure of second channel (12), thereby make first sealing lip (5) and spring seat (1) form sealing, second sealing lip (7) and piston (2) sealing.
5. according to each described hand valve among the claim 1-4, it is characterized in that: described fluid is a gas.
6. according to each described hand valve among the claim 1-4, it is characterized in that: described fluid is an air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101315883A CN101509565B (en) | 2009-04-08 | 2009-04-08 | Hand valve with one-way function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101315883A CN101509565B (en) | 2009-04-08 | 2009-04-08 | Hand valve with one-way function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101509565A CN101509565A (en) | 2009-08-19 |
| CN101509565B true CN101509565B (en) | 2010-08-25 |
Family
ID=41002054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101315883A Active CN101509565B (en) | 2009-04-08 | 2009-04-08 | Hand valve with one-way function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101509565B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214366B (en) * | 2014-09-28 | 2016-11-30 | 凯迈（洛阳）气源有限公司 | A kind of pile-up valve |
| CN114321063A (en) * | 2021-12-24 | 2022-04-12 | 华为数字能源技术有限公司 | Piston valve and vehicle |
-
2009
- 2009-04-08 CN CN2009101315883A patent/CN101509565B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101509565A (en) | 2009-08-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101096208B (en) | Vacuum intensifier for vehicle brake | |
| US7347509B2 (en) | Diaphragm-type accumulator | |
| CN102666226B (en) | Electromagnetic valve device | |
| CN102458938B (en) | For spool and the corresponding electromagnetic valve of electromagnetic valve | |
| CN105545858B (en) | A kind of special Pneumatic valve of pneumohydraulic pressure-cylinder and pneumohydraulic pressure-cylinder | |
| CN101509565B (en) | Hand valve with one-way function | |
| CN102022309B (en) | Booster pump for engineering mechanical brake system | |
| CN105972249B (en) | A kind of normally open solenoid valve | |
| CN101737506B (en) | Single-seat adjusting valve | |
| CN203614162U (en) | Oil filter | |
| CN101463748A (en) | Carbamide injection valve | |
| JPWO2003089794A1 (en) | Hydraulic accumulator | |
| CN205239479U (en) | Automatically controlled emergency brake valve | |
| CN201212471Y (en) | Clutch master cylinder assembly | |
| CN201559649U (en) | Hand valve with one-way function | |
| CN103148122A (en) | Clutch master pump and clutch assembly equipped with clutch master pump | |
| CN103180610B (en) | Piston pump and corresponding automobile braking device for conveyance fluid | |
| CN207554929U (en) | Anti-blocking brake system normally open solenoid valve | |
| CN2837159Y (en) | Oil-gas brake master cylinder | |
| JP2008230283A (en) | Master cylinder | |
| CN106163976A (en) | Filling head (breather pipe) | |
| CN208503592U (en) | A kind of check valve | |
| CN206017102U (en) | The check valve assembly of electric vacuum pump of automobile | |
| CN206503980U (en) | A kind of vehicle fuel pressure regulator valve | |
| CN201196172Y (en) | Oil compensating cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 invention: Hand valve with one-way function Effective date of registration: 20200624 Granted publication date: 20100825 Pledgee: Ruian sub branch of Wenzhou Bank Co., Ltd Pledgor: Ruili Group Ruian Auto Parts Co.,Ltd. Registration number: Y2020330000393 |