CN107882817A - A kind of fluid pressure type reversible lock - Google Patents
A kind of fluid pressure type reversible lock Download PDFInfo
- Publication number
- CN107882817A CN107882817A CN201610864616.2A CN201610864616A CN107882817A CN 107882817 A CN107882817 A CN 107882817A CN 201610864616 A CN201610864616 A CN 201610864616A CN 107882817 A CN107882817 A CN 107882817A
- Authority
- CN
- China
- Prior art keywords
- valve
- cavity
- valve element
- spring
- joint
- 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 present invention is new to disclose 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, and each one of left and right, following two, remaining is all fluid path；The valve string is installed in two cavitys of valve body or so, and component includes screw head, joint, spring, off-load valve element, seal, guide sleeve；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 new setting of the present invention is accurate, 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 is new to be related 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, it is necessary to a kind of new fluid pressure type reversible lock, to ensure to provide the safety coefficient of normal reliable, and it is effective and feasible
Energy-conserving and environment-protective ability.
The content of the invention
The new 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
Hypertonia, during more than rated pressure, safety valve is depressured automatically, is ensured that liquid backflow re-uses, is played safeguard protection and section
The effect of energy environmental protection.
To achieve the above object, the new following technical scheme of offer of the present invention：
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 spiral shell
Head, joint, spring, off-load valve element, seal, guide sleeve；The cavity of left and right two is therefrom separated by piston；Screw head connects
Head left end；Joint is threadedly coupled with left side valve body cavity end mouth, and joint inner chamber insertion spring, spring right-hand member withstands an off-load valve element left side
Side cavity, joint inner chamber are corresponding with off-load valve element cavity；Long head position is stretched into seal and guide sleeve on the right side of off-load valve element；
Guide sleeve is connected by threaded with joint；Inner chamber is provided with inside the joint, inner chamber sets multistage T-shaped chuck, sidepiece of keeping right
Position sets annular through-hole；The off-load valve element 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；One two sides respectively with piston of the off-load valve element of the valve string of left and right two mutually touches；The valve body
Each one unloading cutout valve of placement in two cavitys of bottom；Unloading cutout valve includes cylinder body, gas plug, valve element, and its feature exists
In：The cylinder interior sets penetrating cavity, and annular through-hole is set in the middle part of cylinder body, and upper end sets external screw thread；The gas plug includes stifled
Head, 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 annular groove is set in upper end inwall；Air admission hole, connection are inserted in gaseous core one end by plug cavity side
Place sets hermetic seal；Little spring is inserted on gaseous core opposite side stock, little spring withstands catch, and snap ring is close to catch and is stuck in inner chamber groove
On；For valve element loaded in the middle part of cylinder body, cylinder body chuck inwall is close on right side；The valve element both ends 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, the valve element installation
End sets chamfering；The unloading cutout valve is connected with valve body screw thread.The valve element of all reversible locks is by spring, spring washer or gas
Close.All junctions of the reversible lock are all sealed by polyformaldehyde back-up ring or rubber or abrasive article.
Compared with prior art, the new beneficial effect of the present invention is：
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 new structure schematic diagram of the present invention.
Fig. 2 is Novel work principle sketch of the present invention.
In figure：1. the cylinder body of 8. valve body of screw head 2. joint, 3. spring, 4. off-load valve element, 5. seal, 6. guide sleeve, 7. piston 9.
10. 18. threadeds are blocked up in the air inlet of 16. hermetic seal of valve element 11. sealing ring, 12. snap ring, 13. catch, 14. little spring, 15. gaseous core 17..
Embodiment：
In order that new object, technical solution and advantage of the invention are more clearly understood, below in conjunction with accompanying drawing and specific implementation
Mode, it is new to the present invention to be further elaborated.
A kind of fluid pressure type reversible lock as shown in Fig. 1 new structure schematic diagrams of the present invention, including valve string, valve body 8, piston 7 and
Unload 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 is installed in 8 or so two cavitys of valve body, and component includes screw head 1, joint 2, spring 3, off-load valve element 4, seal 5, guiding
Set 6；The cavity of left and right two is therefrom separated by piston 7；The left end of 1 thread connecting joint of screw head 2；Joint 2 and the cavity end of left side valve body 8
Mouth threaded connection, the inner chamber of joint 2 insertion spring 3, the right-hand member of spring 3 withstand the left side cavity of off-load valve element 4, the inner chamber of joint 2 and off-load
The cavity of valve element 4 is corresponding；The long head position in the right side of off-load valve element 4 is stretched into seal 5 and guide sleeve 6；Guide sleeve 6 passes through threaded
18 are connected with joint 2；The inside of joint 2 is provided with inner chamber, and inner chamber sets multistage T-shaped chuck, and side of keeping right sets annular logical
Hole；The cavity of off-load valve element 4 is arranged on left side, and cavity root is provided with annular oil leak hole；The cavity of off-load valve element 4 sets bullet
Spring chuck；One two sides respectively with piston 7 of the off-load valve element 4 of the valve string of left and right two mutually touches；The two of the bottom of valve body 8
Each one unloading cutout valve of placement in individual cavity；Unloading cutout valve includes cylinder body 9, gas plug, valve element 10, it is characterised in that：Institute
State and penetrating cavity is set inside cylinder body 9, the middle part of cylinder body 9 sets annular through-hole, and upper end sets external screw thread；The gas plug includes plug
17th, hermetic seal 16, gaseous core 15, little spring 14, catch 13, snap ring 12；Plug 17 is threadedly coupled with the lower end of cylinder body 9；The plug
17 upsides set cavity, are connected by air admission hole with outer, and set annular groove in upper end inwall；The one end of gaseous core 15 is empty by plug 17
Air admission hole is inserted in chamber side, and junction sets hermetic seal 16；Little spring 14 is inserted on the opposite side stock of gaseous core 15, little spring 14 is withstood
The snap ring of catch 13,12 is close to catch 13 and is stuck on the groove of inner chamber；Valve element 10 loaded on the middle part of cylinder body 9, be close in the chuck of cylinder body 9 by right side
Wall；The both ends of valve element 10 are designed with cavity, and underside cavity wall is provided with two gas balance pipes, let out in the cavity of upside provided with annular
Oilhole；The gas balance lead to the hole site is relative, and the installation end of valve element 10 sets chamfering；The unloading cutout valve and the spiral shell of valve body 8
Line connects；The valve element of all reversible locks is closed by spring, spring washer or gas；All junctions of the reversible lock are all by gathering
Formaldehyde back-up ring or the sealing of rubber or abrasive article.
As shown in Fig. 2 Novel work principle sketch of the present invention：When normal pressure works, highly pressurised liquid enters by main control valve
Enter PA mouths and push piston open, open PB, liquid enters A mouths.Main control valve stops feed flow A mouth valve elements and 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 off-load valve element is again automatic after A cavity pressures decline to a certain extent closes
Close.
Fluid pressure type reversible lock described in this practical embodiment, simple in construction, reasonable in design, easy to operate, section
Can environmental protection, when pressure fluid is too high, during more than rated pressure, off-load valve element movement draining, play safeguard protection effect.
The present invention is new to be illustrated by specific implementation process, without departing from the present invention, may be used also
To carry out various conversion and equivalent substitute to patent of the present invention, therefore, new 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（8）, piston（7）And unloading cutout valve；The valve body（8）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（8）The cavity of left and right two
Interior, component includes screw head（1）, joint（2）, spring（3）, off-load valve element（4）, seal（5）, guide sleeve（6）；The sky of left and right two
Chamber is by piston（7）Therefrom separate；Screw head（1）Thread connecting joint（2）Left end, joint（2）With left side valve body（8）Cavity port spiral shell
Line connects, joint（2）Spring is inserted in inner chamber（3）, spring（3）Right-hand member withstands off-load valve element（4）Left side cavity, joint（2）Inner chamber
With off-load valve element（4）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；Lead
To set（6）Pass through threaded（18）And joint（2）It is connected；The joint（2）Inside is provided with inner chamber, and inner chamber sets multistage T-shaped card
Platform, side of keeping right set annular through-hole；The off-load valve element（4）Cavity is arranged on left side, and cavity root is provided with annular draining
Hole；The off-load valve element（4）Cavity sets spring chuck；The off-load valve element of the valve string of left and right two（4）One respectively with piston
（7）Two sides mutually touch；The valve body（8）Each one unloading cutout valve of placement in two cavitys of bottom；Unload cutout valve bag
Include：Cylinder body（9）, gas plug, valve element（10）, it is characterised in that：The cylinder body（9）Inside sets penetrating cavity, cylinder body（9）Middle part is set
Annular through-hole, upper end set external screw thread；The gas plug includes plug（17）, hermetic seal（16）, gaseous core（15）, little spring
（14）, catch（13）, snap ring（12）；Plug（17）With cylinder body（9）Lower end is threadedly coupled；The plug（17）Upside sets empty
Chamber, connected by air admission hole with outer, and annular groove is set in upper end inwall；Gaseous core（15）One end is by plug（17）Cavity side is inserted
Air admission hole, junction set hermetic seal（16）；Gaseous core（15）Little spring is inserted on opposite side stock（14）, little spring（14）Withstand
Catch（13）, snap ring（12）It is close to catch（13）It is stuck on the groove of inner chamber；Valve element（10）Loaded on cylinder body（9）Cylinder is close on middle part, right side
Body（9）Chuck inwall；The valve element（10）Both ends are designed with cavity, and underside cavity wall is provided with two gas balance pipes, and upside is empty
Intracavitary is provided with annular oil leak hole；The gas balance lead to the hole site is relative, the valve element（10）Installation end sets chamfering；The unloading
Cutout valve and valve body（8）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 |
|---|---|---|---|
| CN201610864616.2A CN107882817A (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 |
|---|---|---|---|
| CN201610864616.2A CN107882817A (en) | 2016-09-30 | 2016-09-30 | A kind of fluid pressure type reversible lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107882817A true CN107882817A (en) | 2018-04-06 |
Family
ID=61769492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610864616.2A Pending CN107882817A (en) | 2016-09-30 | 2016-09-30 | A kind of fluid pressure type reversible lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107882817A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590718A (en) * | 2018-05-04 | 2018-09-28 | 扎赉诺尔煤业有限责任公司 | Column stops contracting valve |
-
2016
- 2016-09-30 CN CN201610864616.2A patent/CN107882817A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590718A (en) * | 2018-05-04 | 2018-09-28 | 扎赉诺尔煤业有限责任公司 | Column stops contracting valve |
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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 |