CN107882819A - A kind of fluid pressure type reversible lock - Google Patents
A kind of fluid pressure type reversible lock Download PDFInfo
- Publication number
- CN107882819A CN107882819A CN201610865617.9A CN201610865617A CN107882819A CN 107882819 A CN107882819 A CN 107882819A CN 201610865617 A CN201610865617 A CN 201610865617A CN 107882819 A CN107882819 A CN 107882819A
- Authority
- CN
- China
- Prior art keywords
- valve
- cavity
- valve element
- spring
- sets
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
- E21D15/512—Arrangement of valves
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
Abstract
The invention discloses a kind of fluid pressure type reversible lock, including：Valve string, valve body, piston and unloading cutout valve;Valve string is made up of screw head, interface, spring, off-load valve element, seal, guide sleeve, plays a part of controlling liquid；Valve body surface is cast with porous and path, and its structure is used for standing valve string and unloading cutout valve, and facilitates liquid communication；Unloading cutout valve is made up of housing, valve element, gas plug, fills suitable pressure nitrogen to prevent liquid super-pressure, plays a part of protecting circuit and elements.The present invention sets precision, wide using pressure limit, can bear super-pressure, reasonable in design, energy-conserving and environment-protective are easy to operate.
Description
Technical field
The present invention relates to technical field of hydraulic pressure, and in particular to a kind of fluid pressure type reversible lock.
Background technology
Hydraulic system is the key equipment of comprehensive mechanization, and it is related to the security of whole motion process, in real
Not only security performance is still weak hydraulic system, and the pollution problem of super-pressure draining cannot be solved effectively always, therefore, is needed
A kind of new fluid pressure type reversible lock is wanted, to ensure to provide the safety coefficient of normal reliable, and effective and feasible energy-conserving and environment-protective energy
Power.
The content of the invention
The purpose of the present invention is to be directed to existing deficiency, there is provided a kind of fluid pressure type reversible lock, the reversible lock work as industrial and mineral pressure
Too high, during more than rated pressure, safety valve is depressured automatically, is ensured that liquid backflow re-uses, is played safeguard protection and energy-saving ring
The effect of guarantor.
To achieve the above object, the present invention provides following technical scheme：
A kind of fluid pressure type reversible lock, including valve string, valve body, piston and unloading cutout valve；The valve body is provided with four cavitys, left and right
Each one, following two, remaining is all fluid path；The valve string is installed in two cavitys of valve body or so, and component includes connecing
Head, spring, off-load valve element, seal, guide sleeve；The cavity of left and right two is therefrom separated by piston；Joint and left side valve cavity
Port threads connect, and joint inner chamber insertion spring, spring right-hand member withstands cavity on the left of off-load valve element, joint inner chamber and off-load valve element
Cavity is corresponding；Long head position is stretched into seal and guide sleeve on the right side of off-load valve element；Guide sleeve passes through threaded and joint phase
Connection；Inner chamber is provided with inside the joint, inner chamber sets multistage T-shaped chuck, and side of keeping right sets annular through-hole；The unloading valve
Core cavity is arranged on left side, and cavity root is provided with annular oil leak hole；The off-load valve element cavity sets spring chuck；Left and right two
One of the off-load valve element of valve string mutually touches with the two sides of piston respectively；Each placement one in two cavitys of the valve body lower portion
Unload cutout valve；Unloading cutout valve includes cylinder body, gas plug, valve element, it is characterised in that：The cylinder interior sets penetrating cavity,
Annular through-hole is set in the middle part of cylinder body, upper end sets external screw thread；The gas plug include plug, hermetic seal, gaseous core, little spring, catch,
Snap ring；Plug is threadedly coupled with cylinder body lower end；Cavity is set on the upside of the plug, connected by air admission hole with outer, and in upper end
Inwall sets annular groove；Air admission hole is inserted in gaseous core one end by plug cavity side, and junction sets hermetic seal；Gaseous core opposite side stock
On be inserted in little spring, little spring withstands catch, and snap ring is close to catch and is stuck on the groove of inner chamber；For valve element loaded in the middle part of cylinder body, right side is tight
Paste cylinder body chuck inwall；The valve element both ends are designed with cavity, and underside cavity wall is provided with two gas balance pipes, in the cavity of upside
Provided with annular oil leak hole；The gas balance lead to the hole site is relative, and the valve element installation end sets chamfering；It is described unloading cutout valve with
Valve body screw thread connects.The valve element of all reversible locks is closed by spring, spring washer or gas.All junctions of the reversible lock
All sealed by polyformaldehyde back-up ring or rubber or abrasive article.
Compared with prior art, the beneficial effects of the invention are as follows：
The unloading cutout valve set in reversible lock, the high voltage protective function of reversible lock is improved, and the pipeline of valve body is set
The secondary recycling of liquid that more can be under general warranty working environment, plays a part of energy-conserving and environment-protective.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is operation principle sketch of the present invention.
In figure：1. the valve element of 8. cylinder body of joint 2. spring, 3. off-load valve element, 4. seal, 5. guide sleeve, 6. piston, 7. valve body 9.
10. 17. threadeds are blocked up in the air inlet of 15. hermetic seal of sealing ring 11. snap ring, 12. catch, 13. little spring, 14. gaseous core 16..
Embodiment：
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with the drawings and the specific embodiments,
The present invention will be described in further detail.
A kind of fluid pressure type reversible lock as shown in Fig. 1 schematic structural views of the invention, including valve string, valve body 8, piston 7 and unloading
Cutout valve；The valve body 8 is provided with four cavitys, and each one of left and right, following two, remaining is all fluid path；The valve string peace
Loaded in 8 or so two cavitys of valve body, component includes joint 1, spring 2, off-load valve element 3, seal 4, guide sleeve 5；Left and right two
Individual cavity is therefrom separated by piston 6；Joint 1 is threadedly coupled with the cavity port of left side valve body 7, the inner chamber of joint 1 insertion spring 2, bullet
The right-hand member of spring 2 withstands the left side cavity of off-load valve element 3, and the inner chamber of joint 1 is corresponding with the cavity of off-load valve element 3；The long head in the right side of off-load valve element 3
Position is stretched into seal 4 and guide sleeve 5；Guide sleeve 5 is connected by threaded 17 with joint 1；The inside of joint 1 is provided with
Inner chamber, inner chamber set multistage T-shaped chuck, and side of keeping right sets annular through-hole；The cavity of off-load valve element 3 is arranged on left side, empty
Chamber root is provided with annular oil leak hole；The cavity of off-load valve element 3 sets spring chuck；The off-load valve element 3 of the valve string of left and right two
One two sides respectively with piston 6 mutually touches；Each one unloading cutout valve of placement in two cavitys of the bottom of valve body 7；Unload
Carrying cutout valve includes cylinder body 8, gas plug, valve element 9, it is characterised in that：Penetrating cavity is set inside the cylinder body 8, the middle part of cylinder body 8 is set
Annular through-hole, upper end set external screw thread；The gas plug include plug 16, hermetic seal 15, gaseous core 14, little spring 13, catch 12,
Snap ring 11；Plug 16 is threadedly coupled with the lower end of cylinder body 8；The upside of plug 16 sets cavity, is connected by air admission hole with outer, and
In upper end inwall, annular groove is set；Air admission hole is inserted in the one end of gaseous core 14 by the cavity side of plug 16, and junction sets hermetic seal 15；Gas
Little spring 13 is inserted on the opposite side stock of core 14, little spring 13, which withstands the snap ring of catch 12,11, to be close to catch 12 and be stuck on the groove of inner chamber；
For valve element 9 loaded on the middle part of cylinder body 8, the chuck inwall of cylinder body 8 is close on right side；The both ends of valve element 9 are designed with cavity, on underside cavity wall
Provided with two gas balance pipes, annular oil leak hole is provided with the cavity of upside；The gas balance lead to the hole site is relative, and the valve element 9 is pacified
Fill end and chamfering is set；The unloading cutout valve is threadedly coupled with valve body 7；The valve element of all reversible locks by spring, spring washer or
Gas is closed；All junctions of the reversible lock are all sealed by polyformaldehyde back-up ring or rubber or abrasive article.
As shown in Fig. 2 operation principle sketches of the present invention：When normal pressure works, highly pressurised liquid enters by main control valve
PA mouths push piston open, open PB, and liquid enters A mouths.Main control valve stops feed flow, and A mouth valve elements are closed automatically, and A intracavity liquids are automatic
Closing.When A intracavitary sealing liquids are acted on forming high pressure by external pressure, high pressure automatically opens up off-load after increasing to certain pressure
Valve element, liquid return to PA mouths, A cavity pressures is declined automatically, and after A cavity pressures decline to a certain extent, off-load valve element is again automatic
Close.（All valve elements are closed by spring, spring washer, the effect of gas；All junctions are by polyformaldehyde back-up ring or rubber or abrasive article
Sealing.）
Fluid pressure type reversible lock described in the specific embodiment of the invention, simple in construction, reasonable in design, easy to operate, energy-conserving and environment-protective,
When pressure fluid is too high, during more than rated pressure, off-load valve element movement draining, safeguard protection effect is played.
What the present invention was illustrated by specific implementation process, without departing from the present invention, can also be right
Patent of the present invention carries out various conversion and equivalent substitute, and therefore, patent of the present invention is not limited to disclosed specific implementation process,
And the whole embodiments fallen into scope of the patent claims of the present invention should be included.
Claims (3)
1. a kind of fluid pressure type reversible lock, including valve string, valve body（7）, piston（6）And unloading cutout valve；The valve body（7）It is provided with four
Individual cavity, each one of left and right, following two, remaining is all fluid path；The valve string is installed on valve body（7）The cavity of left and right two
Interior, component includes joint（1）, spring（2）, off-load valve element（3）, seal（4）, guide sleeve（5）；The cavity of left and right two is by piston
（6）Therefrom separate；Joint（1）With left side valve body（7）Cavity port is threadedly coupled, joint（1）Spring is inserted in inner chamber（2）, spring
（2）Right-hand member withstands off-load valve element（3）Left side cavity, joint（1）Inner chamber and off-load valve element（3）Cavity is corresponding；Off-load valve element（4）
Seal is stretched into the long head position in right side（5）And guide sleeve（6）It is interior；Guide sleeve（6）Pass through threaded（17）And joint（1）It is connected
Connect；The joint（1）Inside is provided with inner chamber, and inner chamber sets multistage T-shaped chuck, and side of keeping right sets annular through-hole；The off-load
Valve element（3）Cavity is arranged on left side, and cavity root is provided with annular oil leak hole；The off-load valve element（3）Cavity sets spring chuck；
The off-load valve element of the valve string of left and right two（3）One respectively with piston（6）Two sides mutually touch；The valve body（7）The two of bottom
Each one unloading cutout valve of placement in individual cavity；Unloading cutout valve includes：Cylinder body（8）, gas plug, valve element（9）, its feature exists
In：The cylinder body（8）Inside sets penetrating cavity, cylinder body（8）Middle part sets annular through-hole, and upper end sets external screw thread；The gas plug
Including plug（16）, hermetic seal（15）, gaseous core（14）, little spring（13）, catch（12）, snap ring（11）；Plug（16）With cylinder body
（8）Lower end is threadedly coupled；The plug（16）Upside sets cavity, is connected by air admission hole with outer, and is set in upper end inwall
Annular groove；Gaseous core（14）One end is by plug（16）Cavity side inserts air admission hole, and junction sets hermetic seal（15）；Gaseous core（14）Separately
Little spring is inserted on the stock of side（13）, little spring（13）Withstand catch（12）, snap ring（11）It is close to catch（12）It is stuck in inner chamber
On groove；Valve element（9）Loaded on cylinder body（8）Cylinder body is close on middle part, right side（8）Chuck inwall；The valve element（9）Both ends are designed with sky
Chamber, underside cavity wall are provided with two gas balance pipes, annular oil leak hole are provided with the cavity of upside；The gas balances lead to the hole site phase
It is right, the valve element（9）Installation end sets chamfering；The unloading cutout valve and valve body（7）Threaded connection.
2. fluid pressure type reversible lock according to claim 1, it is characterised in that：The valve element of all reversible locks by spring,
Spring washer or gas are closed.
3. fluid pressure type reversible lock according to claim 1, it is characterised in that：All junctions of the reversible lock are all by gathering
Formaldehyde back-up ring or the sealing of rubber or abrasive article.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610865617.9A CN107882819A (en) | 2016-09-30 | 2016-09-30 | A kind of fluid pressure type reversible lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610865617.9A CN107882819A (en) | 2016-09-30 | 2016-09-30 | A kind of fluid pressure type reversible lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107882819A true CN107882819A (en) | 2018-04-06 |
Family
ID=61769779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610865617.9A Pending CN107882819A (en) | 2016-09-30 | 2016-09-30 | A kind of fluid pressure type reversible lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107882819A (en) |
-
2016
- 2016-09-30 CN CN201610865617.9A patent/CN107882819A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180406 |