CN205383306U - Hydraulic one -way valve - Google Patents
Hydraulic one -way valve Download PDFInfo
- Publication number
- CN205383306U CN205383306U CN201521092312.6U CN201521092312U CN205383306U CN 205383306 U CN205383306 U CN 205383306U CN 201521092312 U CN201521092312 U CN 201521092312U CN 205383306 U CN205383306 U CN 205383306U
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- CN
- China
- Prior art keywords
- chamber
- piston
- radial hole
- way valve
- spool
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a hydraulic one -way valve, include: the piston has pole chamber, load to hold the chamber to control the chamber on, control chamber and valve body down, be provided with the valve barrel in the valve body, be provided with the case in the valve barrel, the upper end of valve barrel is connected with spacing subassembly, the lower extreme of valve barrel is connected with the piston, the piston still is connected with the case, it sets up in the lower extreme of piston to control the chamber down, the valve barrel upward movement makes the piston have pole chamber and load to hold the chamber intercommunication, returns the intercommunication that normal position disconnection piston has pole chamber and load appearance chamber, the case upward movement makes the piston have pole chamber and last control chamber to be linked together, returns the intercommunication that normal position disconnection piston has pole chamber and last control chamber. In this way, the utility model discloses hydraulic one -way valve can simplify the structure, and the action is sensitive, and job stabilization is reliable, low in manufacturing cost.
Description
Technical field
This utility model relates to controlling valve field, particularly relates to a kind of hydraulic control one-way valve.
Background technology
Check valve is that a kind of fluid can only flow into along import, and cannot from the directional control valve of outlet return.It is applied to not allow the occasion of reverse fluid flow.Hydraulic control one-way valve is dependent on controlling fluid pressure, it is possible to make the valve of check valve reverse circulated.This valve occupies more important status in the hydraulic prop equipment of coal mine machinery.How hydraulic control one-way valve has been a difference in that an oil circuit control K with common check valve, and when oil circuit control access failure pressure oil liquid, hydraulic control one-way valve works just as common check valve, and pressure oil only flows to outlet from import, it is impossible to reverse flow.When oil circuit control has control pressure input, piston mandril backs down check valve under pressure oil effect, makes oil inlet and outlet connect, if oil-out pressure is more than inlet pressure, fluid will reverse flow.
Summary of the invention
This utility model is mainly solving the technical problems that provide a kind of hydraulic control one-way valve, it is possible to simplifies structure, is active in one's movements, stable and reliable in work, low cost of manufacture.
For solving above-mentioned technical problem, the technical scheme that this utility model adopts is: provide a kind of hydraulic control one-way valve, including: piston rod chamber, load chamber, upper control chamber, lower control chamber and valve body, it is provided with valve pocket in described valve body, it is provided with spool in described valve pocket, the upper end of described valve pocket is connected to limit assembly, the lower end of described valve pocket is connected to piston, described piston is also connected with spool, described lower control chamber is arranged at the lower end of piston, described valve pocket moves upward and makes piston rod chamber connect with load chamber, return original position and disconnect connecting of piston rod chamber and load chamber, described spool moves upward and makes piston rod chamber be connected with upper control chamber, return original position and disconnect connecting of piston rod chamber and upper control chamber.
In one preferred embodiment of this utility model, described spool being provided with the first radial hole, described limit assembly is provided with the second radial hole, and described limit assembly controls the first radial hole and the connection of the second radial hole or disconnects.
In one preferred embodiment of this utility model, described limit assembly includes adjusting screw rod and adjustment seat, described adjusting screw rod one end is connected with spool, the other end is connected in adjustment seat, described second radial hole is opened on adjusting screw rod, and described adjusting screw rod controls the first radial hole and the connection of the second radial hole or disconnects.
In one preferred embodiment of this utility model, described adjusting screw rod upper end is provided with locking nut, and described locking nut is positioned in adjustment seat.
In one preferred embodiment of this utility model, described piston is connected below limited location screw plug.
In one preferred embodiment of this utility model, described valve pocket is connected to the first back-moving spring, described spool is connected to the second back-moving spring.
In one preferred embodiment of this utility model, described valve body upper end is additionally provided with protection lid, and described protection lid is connected to limit assembly upper end.
The beneficial effects of the utility model are: this utility model hydraulic control one-way valve, it is possible to simplify structure, be active in one's movements, stable and reliable in work, low cost of manufacture.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, below the accompanying drawing used required during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of this utility model hydraulic control one-way valve one preferred embodiment；
In accompanying drawing, the labelling of each parts is as follows: 1, protection lid, and 2, locking nut, 3, adjustment seat; 4, adjusting screw rod, the 5, first back-moving spring, 6, valve body; 7, the second back-moving spring; 8, spool, 9, valve pocket, 10, piston; 11, spacing screw plug; K1, the second radial hole, K2, the first radial hole, R1, upper control chamber; R2, load chamber; R3, piston rod chamber, R4, lower control chamber, A1, upper control chamber active area; A2, poppet valve core active area; A3, valve pocket active area, A4, lower control chamber active area.
Detailed description of the invention
Technical scheme in this utility model embodiment will be clearly and completely described below, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Based on the embodiment in this utility model, all other embodiments that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
nullRefer to Fig. 1，A kind of hydraulic control one-way valve，Including: piston rod chamber R3、Load chamber R2、Upper control chamber R1、Lower control chamber R4 and valve body 6，It is provided with valve pocket 9 in described valve body 6，It is provided with spool 8 in described valve pocket 9，The upper end of described valve pocket 9 is connected to limit assembly，The lower end of described valve pocket 9 is connected to piston 10，Described piston 10 is also connected with spool 8，Described lower control chamber R4 is arranged at the lower end of piston 10，Described valve pocket 9 moves upward and makes piston rod chamber connect with R3 load chamber R2，Return original position and disconnect connecting of piston rod chamber R3 and load chamber R2，Described spool 8 moves upward and makes piston rod chamber R3 be connected with upper control chamber R1，Return original position and disconnect connecting of piston rod chamber R3 and upper control chamber R1，The active area A4 of lower control cavity volume R4 respectively with the active area A2 of poppet valve core、Area ratio two kinds different is determined in the active area A3 combination of valve pocket
It addition, be provided with the first radial hole K2 on described spool 8, described limit assembly is provided with the second radial hole K1, and described limit assembly controls the first radial hole K1 and the second radial hole K2 connection or disconnects.
Additionally, described limit assembly includes adjusting screw rod 4 and adjustment seat 3, described adjusting screw rod 4 one end is connected with spool 8, the other end is connected in adjustment seat 3, described second radial hole K1 is opened on adjusting screw rod 4, and described adjusting screw rod 4 controls the first radial hole K2 and the second radial hole K1 connection or disconnects.
It addition, described adjusting screw rod 4 upper end is provided with locking nut 2, described locking nut 2 is positioned in adjustment seat 3.
It addition, described piston 10 is connected below limited location screw plug 11.
It addition, described valve pocket 9 is connected to the first back-moving spring 5, described spool 8 is connected to the second back-moving spring 7.
It addition, described valve body 6 upper end is additionally provided with protection lid 1, described protection lid 1 is connected to limit assembly upper end.
This utility model hydraulic control one-way valve specific works principle is as follows: when pressure oil enters from piston rod chamber R3, act on hydraulic coupling on valve pocket 9 more than the spring force of the first back-moving spring 5 and carrying sum, valve pocket 9 moves up, piston rod chamber R3 connects with load chamber R2, and pressure oil enters load chamber R2 from piston rod chamber R3；
When pressure oil enters from load chamber R2, the downward power on valve pocket 9 that acts on is more than the power making valve pocket 9 move upward, and check valve is closed, and load chamber R2 does not connect with piston rod chamber R3.When the first radial hole K2 and the second radial hole K1 is in connected state, when the hydraulic coupling controlling pressure generation of lower control chamber R4 acts on, more than the load pressure in upper control chamber R1, the hydraulic coupling produced on spool 8, spool 8 moves upward, upper control chamber R1 is connected with piston rod chamber R3 by the second radial hole K1 on spool 8, upper control chamber R1 pressure reduces, act on power downward on valve pocket 9 less than the power making valve pocket 9 move upward, valve pocket 9 moves upward, load chamber R2 connects with piston rod chamber R3, and pressure oil enters piston rod chamber R3 from load chamber R2.
When the first radial hole K2 and the second radial hole K1 is in blocking state, piston 10 moves upward under the effect controlling pressure of lower control chamber R1 and backs down spool 8, but owing to the first radial hole K2 and the second radial hole K1 does not connect, upper control chamber R1 cannot connect with piston rod chamber R3, act on the downward power on valve pocket 9 still more than making its power to motion, check valve is still in closed mode, piston 10 continues up under the effect of lower control chamber R4 pressure, piston 10 is made to withstand on valve pocket, when the power upwards acted on valve pocket 9 is more than downward power, valve pocket 9 moves upward, one-way valve opens, pressure oil enters piston rod chamber R3 from load chamber R2.
It is different from prior art, this utility model hydraulic control one-way valve, it is possible to simplify structure, be active in one's movements, stable and reliable in work, low cost of manufacture.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing this utility model description to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, all in like manner include in scope of patent protection of the present utility model.
Claims (7)
1. a hydraulic control one-way valve, it is characterized in that, including: piston rod chamber, load chamber, upper control chamber, lower control chamber and valve body, it is provided with valve pocket in described valve body, it is provided with spool in described valve pocket, the upper end of described valve pocket is connected to limit assembly, the lower end of described valve pocket is connected to piston, described piston is also connected with spool, described lower control chamber is arranged at the lower end of piston, described valve pocket moves upward and makes piston rod chamber connect with load chamber, return original position and disconnect connecting of piston rod chamber and load chamber, described spool moves upward and makes piston rod chamber be connected with upper control chamber, return original position and disconnect connecting of piston rod chamber and upper control chamber.
2. hydraulic control one-way valve according to claim 1, it is characterised in that be provided with the first radial hole on described spool, described limit assembly is provided with the second radial hole, and described limit assembly controls the first radial hole and the connection of the second radial hole or disconnects.
3. hydraulic control one-way valve according to claim 2, it is characterized in that, described limit assembly includes adjusting screw rod and adjustment seat, described adjusting screw rod one end is connected with spool, the other end is connected in adjustment seat, described second radial hole is opened on adjusting screw rod, and described adjusting screw rod controls the first radial hole and the connection of the second radial hole or disconnects.
4. hydraulic control one-way valve according to claim 3, it is characterised in that described adjusting screw rod upper end is provided with locking nut, and described locking nut is positioned in adjustment seat.
5. according to the arbitrary described hydraulic control one-way valve of claim 1-4, it is characterised in that described piston is connected below limited location screw plug.
6. hydraulic control one-way valve according to claim 5, it is characterised in that be connected to the first back-moving spring on described valve pocket, described spool is connected to the second back-moving spring.
7. hydraulic control one-way valve according to claim 6, it is characterised in that described valve body upper end is additionally provided with protection lid, and described protection lid is connected to limit assembly upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521092312.6U CN205383306U (en) | 2015-12-25 | 2015-12-25 | Hydraulic one -way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521092312.6U CN205383306U (en) | 2015-12-25 | 2015-12-25 | Hydraulic one -way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205383306U true CN205383306U (en) | 2016-07-13 |
Family
ID=56338826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521092312.6U Withdrawn - After Issue CN205383306U (en) | 2015-12-25 | 2015-12-25 | Hydraulic one -way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205383306U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402449A (en) * | 2015-12-25 | 2016-03-16 | 江苏恒立液压有限公司 | Hydraulically-controlled check valve |
-
2015
- 2015-12-25 CN CN201521092312.6U patent/CN205383306U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402449A (en) * | 2015-12-25 | 2016-03-16 | 江苏恒立液压有限公司 | Hydraulically-controlled check valve |
| CN105402449B (en) * | 2015-12-25 | 2018-01-23 | 江苏恒立液压科技有限公司 | Hydraulic control one-way valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160713 Effective date of abandoning: 20180123 |