CN205559401U - Pilot -operated check valve - Google Patents
Pilot -operated check valve Download PDFInfo
- Publication number
- CN205559401U CN205559401U CN201620371155.0U CN201620371155U CN205559401U CN 205559401 U CN205559401 U CN 205559401U CN 201620371155 U CN201620371155 U CN 201620371155U CN 205559401 U CN205559401 U CN 205559401U
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- case
- sealing ring
- oilhole
- 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
Abstract
The utility model discloses a pilot -operated check valve, including front valve lid, case no. 1, fluting countersunk screw, sealing ring, valve barrel, valve body, push rod, case no. 2, back valve gap, case no. 1 is installed in the inside left side position of valve body to case no. 1 links to each other with the front valve lid through the spring, the sealing ring fix at case no. 1 insidely through fluting countersunk screw, oilhole B is connected on a case upper portion, valve barrel installation valve body is inside and contact with a case right side, the valve barrel right side be oilhole A, case no. 2 is installed in valve body inside right side position to case no. 2 links to each other with the back valve gap through the spring, and push rod one end is fixed on case no. 2, another pot head in the valve barrel, two right sides of case intercommunication control oilhole X. The sealing ring adopts the polytetrafluoroethylene material, and a terminal surface and case excircle is perpendicular. Pressurize and zero leakage can be accomplished simultaneously, and the processing degree of difficulty has been reduced.
Description
Technical field
This utility model relates to a kind of hydraulic control one-way valve, is specifically related to one and is used in hydraulic pressure on launched by warship platform
Hydraulic control one-way valve in system, requires the operating mode of zero leakage for pressurize.
Background technology
Hydraulic control one-way valve acts primarily as pressure maintaining effect in hydraulic system, and the hydraulic control one-way valve produced in the market is pressed
Installation form is divided into board-like and two kinds of forms of tubular type.Party A makes a hydraulic pressure system on launched by warship platform now
System, because launched by warship platform pressurize is required height, specific requirement: pressurize 5 years is without any leakage；Work
Pressure 20MPa；Installation dimension meets the board-like hydraulic control hydraulic control one-way valve requirement of ISO6 latus rectum.
The hydraulic control one-way valve that market produces now, regardless of installation form and pressure rating, it seals shape
Formula is to use spool and valve opening to adopt to make conical surface seal, the problem that conical surface seal is primarily present: spool is bored with valve opening
Face machining accuracy is high, and precision is difficult to ensure；Pressurize requires high or has pressurize requirement and zero operating mode revealed,
Especially high pressure, is difficult to meet requirement.
Utility model content
The purpose of this utility model is for the problems referred to above, it is provided that a kind of hydraulic control one-way valve, to solve processing
Difficulty is high and pressurize and the problem of zero leakage.
In order to reach the purpose of this utility model, technical scheme is as follows:
A kind of hydraulic control one-way valve, it is characterised in that include front valve gap, spool one, slotted countersunk flat head screw, close
Seal ring, valve pocket, valve body, push rod, spool two, rear valve gap, it is left that described spool one is arranged on valve inner
Side position, and spool one is connected with front valve gap by spring, and described sealing ring passes through slotted countersunk flat head screw
Being fixed on spool one internal, spool one top connects oilhole B, valve pocket install valve inner and with spool one on the right side of
Contacting, lead to oilhole A on the right side of valve pocket, described spool two is arranged on valve inner right positions, and
Spool two is connected with rear valve gap by spring, and described push rod one end is fixed on spool two, and the other end is enclosed within
In valve pocket, lead to control oilhole X on the right side of spool two.
Preferably, described sealing ring uses polytetrafluoroethylmaterial material, and described sealing ring end face and spool
One cylindrical is vertical.
This utility model has the advantages that
Described sealing ring seals in valve body, reaches pressurize and zero leakage simultaneously, and solves spool and valve
The problem that when hole uses conical surface seal, machining accuracy is high, reduces difficulty of processing.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of hydraulic control unit valve arrangement；
Fig. 2 is the top view of Fig. 1；
In figure: front valve gap (1), spool one (4), slotted countersunk flat head screw (5), sealing ring (6), valve pocket (7),
Valve body (10), push rod (12), spool two (13), rear valve gap (14).
Detailed description of the invention
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by detailed description of the invention.
As it is shown in figure 1, hydraulic control one-way valve, including front valve gap (1), O (2), spring (3) spool
One (4), slotted countersunk flat head screw (5), sealing ring (6), valve pocket (7), O (8), spring (9),
Valve body (10), O (11), push rod (12), spool two (13), rear valve gap (14), O (15)
Described spool 1 is arranged on valve body 10 inside left position, and spool 1 is by spring and front valve gap
1 is connected, and it is internal, on spool 1 that described sealing ring 6 is fixed on spool 1 by slotted countersunk flat head screw 5
Portion connects oilhole B, and valve pocket 7 is installed valve body 10 inside and contacts on the right side of spool 1, on the right side of valve pocket 7
Leading to oilhole A, described spool 2 13 is arranged on valve body 10 inner right side position, and spool 2 13 leads to
Crossing spring to be connected with rear valve gap 14, described push rod 12 one end is fixed on spool 2 13, and the other end is enclosed within
In valve pocket 7, lead to control oilhole X on the right side of spool 2 13.
Shown in Fig. 2, Fig. 2 is the top view of the present embodiment.When oil is after entering in A hole, and pressure is pushed open
Spool 4 so that oil just can flow out from oilhole B.When oil is entered from oilhole B, pressure oil promotes spool
4, at this moment sealing ring 6 is adjacent to valve pocket 7 end face, and pressure oil can not flow to oilhole A from oilhole B, just plays pressurize
Effect.Under packing state, from controlling oilhole X oil-feed, valve gap after entrance, pressure promotes spool 13, passes through
Push rod 12, backs down spool 4, and at this moment oil can flow to oilhole A from oilhole B, and system is with regard to release.
Sealing ring uses polytetrafluoroethylmaterial material, and sealing ring end face is vertical with spool one cylindrical.
Sealing ring seals in valve body, reaches pressurize and zero leakage simultaneously, and solves spool and valve opening employing
The problem that during conical surface seal, machining accuracy is high, reduces difficulty of processing.
Above example simply elaborates ultimate principle of the present utility model and characteristic, and this utility model is not by upper
Stating embodiment to limit, on the premise of without departing from this utility model spirit and scope, this utility model also has each
Plant change and change, in the range of these changes and change both fall within claimed this utility model.This practicality
Novel claimed scope is defined by appending claims and equivalent thereof.
Claims (2)
1. a hydraulic control one-way valve, it is characterised in that include front valve gap (1), O (2), spring (3)
Spool one (4), slotted countersunk flat head screw (5), sealing ring (6), valve pocket (7), O (8), spring
(9), valve body (10), O (11), push rod (12), spool two (13), rear valve gap (14), O
Shape circle (15), described spool one (4) is arranged on valve body (10) inside left position, and spool one
(4) being connected with front valve gap (1) by spring, described sealing ring (6) passes through slotted countersunk flat head screw (5)
Being fixed on spool one (4) internal, spool one (4) top connects oilhole B, and valve pocket (7) installs valve body (10)
Inside also contacts with spool one (4) right side, and valve pocket (7) right side leads to oilhole A, described spool two
(13) it is arranged on valve body (10) inner right side position, and spool two (13) is by spring and rear valve gap
(14) being connected, described push rod (12) one end is fixed on spool two (13), and the other end is enclosed within valve pocket
(7), in, spool two (13) right side leads to controlling oilhole X.
Hydraulic control one-way valve the most according to claim 1, it is characterised in that: described sealing ring (6)
Use polytetrafluoroethylmaterial material, and described sealing ring (6) end face is vertical with spool one (4) cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620371155.0U CN205559401U (en) | 2016-04-28 | 2016-04-28 | Pilot -operated check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620371155.0U CN205559401U (en) | 2016-04-28 | 2016-04-28 | Pilot -operated check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205559401U true CN205559401U (en) | 2016-09-07 |
Family
ID=56805058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620371155.0U Expired - Fee Related CN205559401U (en) | 2016-04-28 | 2016-04-28 | Pilot -operated check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205559401U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178531A (en) * | 2017-07-28 | 2017-09-19 | 北京航天发射技术研究所 | A kind of Zero-leakage hydraulic lock |
-
2016
- 2016-04-28 CN CN201620371155.0U patent/CN205559401U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178531A (en) * | 2017-07-28 | 2017-09-19 | 北京航天发射技术研究所 | A kind of Zero-leakage hydraulic lock |
| CN107178531B (en) * | 2017-07-28 | 2018-08-21 | 北京航天发射技术研究所 | A kind of Zero-leakage hydraulic lock |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20210428 |