CN203614486U - Hydraulic control one-way valve - Google Patents
Hydraulic control one-way valve Download PDFInfo
- Publication number
- CN203614486U CN203614486U CN201320661340.XU CN201320661340U CN203614486U CN 203614486 U CN203614486 U CN 203614486U CN 201320661340 U CN201320661340 U CN 201320661340U CN 203614486 U CN203614486 U CN 203614486U
- Authority
- CN
- China
- Prior art keywords
- passage
- valve
- valve seat
- pilot operated
- operated check
- 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
Links
Images
Abstract
The utility model relates to a hydraulic control one-way valve, which comprises a valve body, an axial passage, a first valve seat and a second valve seat, wherein the axial passage is arranged in the valve body, the first valve seat and the second valve seat are arranged at two sides of the axial passage and are connected with two ends of the valve body in a sealed way, the axial passage comprises a first installing passage, a second installing passage and a liquid passage, the liquid passage is arranged between the first installing passage and the second installing passage, a control piston is arranged in the first installing passage, a base of the control piston is in contact with the first valve seat, a valve core control structure is arranged in the second installing passage, one side of the liquid passage is provided with a liquid inlet passage, one side of the second installing passage is provided with a liquid outlet passage, and one side, positioned at the base of the control piston, of the first installing passage is provided with an oil supply passage. The hydraulic control one-way valve has the advantages that the structure is simple, the sensitivity of the control piston is high, the hydraulic control one-way valve is suitable for various kinds of opening pressure at different intensities, the precision of the valve core control structure is high, and the liquid leakage phenomenon cannot occur.
Description
Technical field
The utility model relates to a kind of one-way valve, especially a kind of Pilot operated check valve.
Background technique
Pilot operated check valve is to rely on to control hydrodynamic pressure, can make the valve of one-way valve reverse circulated.This valve occupies compared with consequence in the hydraulic prop equipment of coal mine machinery, Pilot operated check valve and the common one-way valve difference oil circuit control K that has been many, in the time of oil circuit control access failure pressure oil liquid, Pilot operated check valve is worked as common one-way valve, and pressure oil only flows to oil outlet from filler opening, can not reverse flow, in the time of the input of oil circuit control oil pilot pressure, piston mandril moves right under pressure oil effect, backs down one-way valve with push rod, and oil inlet and outlet is connected.
In fluid technique equipment, usually comprise the one-way valve as apparatus control system constituent element, due to the different structure of equipment, for example, pressure rating, volume flowrate, the difference of mounting point, adopt the one-way valve of the cracking pressure of active side fixed adjustment can not carry out trouble-free control, in this case, one-way valve in the time that equipment investment moves just must change into this equipment in the one-way valve that matches of cracking pressure, and, if while supplying the pressure of oil supply excessive, can cause the interior liquid communication control of valve body not accurate, the phenomenon of leakage, and all more complicated of existing fluid-control one-way valve arrangement on the market.
Model utility content
The purpose of this utility model is in order to solve the existing defect of Pilot operated check valve in prior art, provides a kind of simple in structure, the Pilot operated check valve that liquid control accuracy is high.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of Pilot operated check valve, comprise valve body, be arranged on the axial passage in this valve body and be arranged on the both sides of axial passage and with sealed at both ends the first valve seat being connected of described valve body and the second valve seat, described axial passage comprises the first installation passage, and second installs passage and be arranged on the described first fluid passage of installing between passage and the second installation passage;
In described the first installation passage, be provided with control piston, the base of this control piston contacts with the first valve seat, in described the second installation passage, is provided with spool control structure;
One side of described fluid passage is provided with feed pathway, and the second side that passage is installed is provided with liquid outlet channel, and the side that described the first installation passage is positioned at described control piston base is provided with oil supply gallery.
Above-mentioned a kind of Pilot operated check valve, described spool control structure comprises the stage clip being fixed on described the second valve seat, the guide valve core being connected away from one end of the second valve seat with this stage clip and be sleeved on the main valve plug on described guide valve core.
Above-mentioned a kind of Pilot operated check valve, is provided with radial flange between described the second installation passage and fluid passage, and the omoplate of described main valve plug contacts with this radial flange.
Above-mentioned a kind of Pilot operated check valve, described control piston comprises base and push rod, it is interior and corresponding with described guide valve core that this push rod extend into described fluid passage.
Above-mentioned a kind of Pilot operated check valve, the joint of described the first valve seat and the second valve seat and described valve body is equipped with seal ring.
Above-mentioned a kind of Pilot operated check valve, described first installs passage, the second installation passage and fluid passage is positioned on same axis.
The beneficial effects of the utility model are: this Pilot operated check valve is simple in structure, drive control piston to move axially by the pressure oil in oil supply gallery, control piston backs down spool control structure, thereby control fluid passage and second and passage is installed in connected state, this Pilot operated check valve control piston highly sensitive, the cracking pressure that is applicable to various different sizes, the precision of spool control structure is high, there will not be the phenomenon of leakage.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
Embodiment
For making that structure characteristic of the present utility model and effect of reaching are had and further understand and be familiar with, coordinate detailed explanation in order to preferred embodiment and accompanying drawing, be described as follows:
As shown in Figure 1, a kind of Pilot operated check valve, comprise valve body 1, be arranged on the axial passage in this valve body 1 and be arranged on the both sides of axial passage and with sealed at both ends the first valve seat 2 being connected of valve body 1 and the second valve seat 3, the first valve seat 2 and the second valve seat 3 are equipped with seal ring with the joint of valve body 1, axial passage comprises the first installation passage 4, second passage 5 is installed and be arranged on the first installation passage 4 and second install fluid passage 6, the first between passage 5 install logical 4, second passage 5 is installed and fluid passage 6 is positioned on same axis;
In the first installation passage 4, be provided with control piston 7, the base 15 of this control piston 7 contacts with the first valve seat 2, in the second installation passage 5, is provided with spool control structure; As improvement of the present utility model, spool control structure comprises the stage clip 11 being fixed on the second valve seat 3, the guide valve core 12 being connected away from one end of the second valve seat 3 with this stage clip 11 and be sleeved on the main valve plug 13 on guide valve core 12.
Between the second installation passage 5 and fluid passage 6, be provided with radial flange 14, the omoplate of main valve plug 13 contacts with this radial flange 14, and control piston 7 comprises base 15 and push rod 16, and it is interior and corresponding with guide valve core 12 that this push rod 16 extend into fluid passage 6.
One side of fluid passage 6 is provided with feed pathway 8, the second and a side of passages 5 is installed is provided with liquid outlet channel 9, the first and the side that passages 4 are positioned at control piston 7 bases is installed is provided with oil supply gallery 10.
When supplying with to oil supply gallery 10 after the pressure oil of certain pressure, pressure oil drives control piston 7 to promote to the right, now the push rod 16 of control piston 7 contacts with guide valve core 12 and drives guide valve core 12 to retreat, after the end face of the end face of guide valve core 12 and main valve plug 13, push rod 16 promotes main valve plug 13 and retreats, now stage clip 11 is in compressive state, the radial flange 14 being provided with between the omoplate of main valve plug 13 and the second installation passage 5 and fluid passage 6 separates, fluid passage 6 and second is installed passage 5 in connected state, now the liquid runs down fluid passage 6 in feed pathway 8 enters into the second installation passage 5 and flows out from liquid outlet channel 9, after oil supply gallery 10 internal pressure oil pressures reduce, control piston 7 is moved to the left, stage clip 11 resets, main valve plug 13 resets, its omoplate contacts with radial flange 14, now fluid passage 6 and second is installed passage 5 in closed condition, this Pilot operated check valve control piston highly sensitive, be applicable to the cracking pressure of various different sizes, the precision of spool control structure is high, there will not be the phenomenon of leakage.
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; what in above-described embodiment and specification, describe is principle of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (6)
1. a Pilot operated check valve, comprises valve body, be arranged on the axial passage in this valve body and be arranged on the both sides of axial passage and with sealed at both ends the first valve seat being connected of described valve body and the second valve seat, it is characterized in that:
Described axial passage comprises the first installation passage, and second installs passage and be arranged on the described first fluid passage of installing between passage and the second installation passage;
In described the first installation passage, be provided with control piston, the base of this control piston contacts with the first valve seat, in described the second installation passage, is provided with spool control structure;
One side of described fluid passage is provided with feed pathway, and the second side that passage is installed is provided with liquid outlet channel, and the side that described the first installation passage is positioned at described control piston base is provided with oil supply gallery.
2. a kind of Pilot operated check valve according to claim 1, it is characterized in that, described spool control structure comprises the stage clip being fixed on described the second valve seat, the guide valve core being connected away from one end of the second valve seat with this stage clip and be sleeved on the main valve plug on described guide valve core.
3. a kind of Pilot operated check valve according to claim 2, is characterized in that, between described the second installation passage and fluid passage, is provided with radial flange, and the omoplate of described main valve plug contacts with this radial flange.
4. a kind of Pilot operated check valve according to claim 2, is characterized in that, described control piston comprises base and push rod, and it is interior and corresponding with described guide valve core that this push rod extend into described fluid passage.
5. a kind of Pilot operated check valve according to claim 1, is characterized in that, the joint of described the first valve seat and the second valve seat and described valve body is equipped with seal ring.
6. according to a kind of Pilot operated check valve described in any one in claim 1 to 5, it is characterized in that, described first installs passage, the second installation passage and fluid passage is positioned on same axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320661340.XU CN203614486U (en) | 2013-10-23 | 2013-10-23 | Hydraulic control one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320661340.XU CN203614486U (en) | 2013-10-23 | 2013-10-23 | Hydraulic control one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614486U true CN203614486U (en) | 2014-05-28 |
Family
ID=50767135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320661340.XU Expired - Fee Related CN203614486U (en) | 2013-10-23 | 2013-10-23 | Hydraulic control one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614486U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757032A (en) * | 2015-12-15 | 2016-07-13 | 重庆川仪自动化股份有限公司 | Flow rate pairing valve and electrohydraulic actuating mechanism adopting same |
| CN111839195A (en) * | 2020-07-13 | 2020-10-30 | 广东美的厨房电器制造有限公司 | Steam household electrical appliance |
| CN113739994A (en) * | 2021-08-25 | 2021-12-03 | 成都飞机工业（集团）有限责任公司 | Low-loss temperature and pressure composite sensor air connecting nozzle |
-
2013
- 2013-10-23 CN CN201320661340.XU patent/CN203614486U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757032A (en) * | 2015-12-15 | 2016-07-13 | 重庆川仪自动化股份有限公司 | Flow rate pairing valve and electrohydraulic actuating mechanism adopting same |
| CN105757032B (en) * | 2015-12-15 | 2017-12-26 | 重庆川仪自动化股份有限公司 | Flow matches valve and the electrohydraulic actuator using flow pairing valve |
| CN111839195A (en) * | 2020-07-13 | 2020-10-30 | 广东美的厨房电器制造有限公司 | Steam household electrical appliance |
| CN113739994A (en) * | 2021-08-25 | 2021-12-03 | 成都飞机工业（集团）有限责任公司 | Low-loss temperature and pressure composite sensor air connecting nozzle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203441509U (en) | Novel large-flow hydraulic control one-way valve | |
| CN203614486U (en) | Hydraulic control one-way valve | |
| CN201031829Y (en) | Compound oil cylinder cylinder rod operation gear changes | |
| CN104454780A (en) | Oil cylinder with mechanical locking function and hydraulic system | |
| CN203614487U (en) | Hydraulic control one-way valve | |
| CN104455581A (en) | Ultrahigh pressure check valve | |
| CN101869788B (en) | Emulsion backwash filter station and hydraulic control change valve thereof | |
| CN106461114A (en) | Valve device for controlling media flows of any type | |
| CN104047918B (en) | Double linked one-way valve | |
| CN204113788U (en) | The Embedded shunting relief valve of a kind of shuttle valve | |
| CN204225808U (en) | Controlled pressure drilling mechanical pump is auxiliary stops pump installation and controlled pressure drilling device | |
| CN203321921U (en) | Pilot-operated type overflow valve | |
| CN203655760U (en) | Tube type hydraulic control one-way valve | |
| CN202811595U (en) | Novel thread plug-in mounting type split shuttle valve | |
| CN201288863Y (en) | Superpose installation pilot-controlled check valve | |
| CN202768836U (en) | Sealing structure between two junction surfaces in hydraulic device | |
| CN204164448U (en) | A kind of pressurized container uses emergency seat | |
| CN205173521U (en) | Prevent leakage control valve | |
| CN207599062U (en) | Safety valve with emulsion recycling function | |
| CN202947839U (en) | Gas tightness testing device of oil pump casing | |
| CN203948365U (en) | Double linked one-way valve | |
| CN204828109U (en) | Be applied to mechanical open -type check valve on second grade telescope in sequence hydro -cylinder | |
| CN204300027U (en) | Formula of retrodicting multistage hydraulic cylinder | |
| CN203430886U (en) | Shuttle valve and forklift | |
| CN104595267B (en) | Implanted direct relief valve |
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: 20140528 Termination date: 20151023 |
|
| EXPY | Termination of patent right or utility model |