CN203374884U - Hot oil shuttle valve - Google Patents
Hot oil shuttle valve Download PDFInfo
- Publication number
- CN203374884U CN203374884U CN201320391738.6U CN201320391738U CN203374884U CN 203374884 U CN203374884 U CN 203374884U CN 201320391738 U CN201320391738 U CN 201320391738U CN 203374884 U CN203374884 U CN 203374884U
- Authority
- CN
- China
- Prior art keywords
- valve core
- sliding valve
- guide groove
- hole
- spring seat
- 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
Landscapes
- Safety Valves (AREA)
Abstract
The utility model provides a hot oil shuttle valve and relates to a shuttle valve. The hot oil shuttle valve comprises a swivel nut and a valve sleeve. The valve sleeve is provided with an oil outlet, a first oil inlet and a second oil inlet, a sliding valve core is arranged in the valve sleeve, a spring seat is arranged in the swivel nut, a spring is arranged on the spring seat, the spring is connected with the sliding valve core, a gap is formed between the sliding valve core and the spring seat, a gap is formed between the sliding valve core and the valve sleeve, the sliding valve core is provided with a first guide groove and a second guide groove, both the length of the first guide groove and the length of the second guide groove are longer than the distance between each oil inlet and the oil outlet, a first through hole is formed in the tail portion of the sliding valve core, the first through hole is further communicated with the first guide groove, a second through hole is formed in the top of the sliding valve core, and the second through hole is communicated with the second guide groove. Compared with the prior art, the hot oil shuttle valve has the advantages that the closing and the reset of the sliding valve core in the shuttle valve are made to be more accurate, the opening of the shuttle valve is more stable, borne pressure is higher, the structure is more compact, sealing performance is better, and heat dissipation of hot oil of a hydrostatic system is achieved. The hot oil shuttle valve solves the problems that an existing shutting valve is not sensitive enough in response and leakage occurs easily when used for a long time.
Description
Technical field
The utility model relates to a kind of shuttle valve, relates in particular to a kind of deep fat shuttle valve.
Background technique
Shuttle valve is a kind of straight stroke valve, and shuttle valve is equivalent to the valve of two one-way valve combinations, and its effect is equivalent to disjunction gate.Usually shuttle valve has two filler openings, an oil outlet, and wherein two filler openings can communicate with oil outlet, but not connected between two filler openings.Any one in two filler openings has the fluid input, and oil outlet can be exported.If two filler openings have the fluid input, the fluid of the side that first input side or oil liquid pressure are high is exported by oil outlet, and opposite side is blocked, and only, when two filler openings are all inputted without fluid, fuel-displaced eloquence no signal is exported.The 26S Proteasome Structure and Function of most shuttle valve is all fairly simple, in oil circuit with a steel ball as spool, the advantage of this design is simple in structure, is swift in response, volume is compact.But relative shortcoming is also clearly, because steel ball position in valve body is unfixing, when the fluid flow that input is arranged too small, when perhaps having static pressure, the reaction of steel ball shuttle valve is responsive not, and, because the oil sealing of steel ball shuttle valve is to contact by the other sharp limit of filler opening in steel ball and shuttle valve, in use be easy to produce collision, thereby cause sharp limit to be damaged the function that can't realize oil sealing.
Summary of the invention
The utility model is for deficiency of the prior art, a kind of deep fat shuttle valve is provided, change existing shuttle valve internal structure and become sliding valve core control discrepancy oil by steel ball, make closing and resetting more accurate of the interior sliding valve core of shuttle valve, open more stablely, bear pressure higher, more compact structure, sealability is better, realizes the deep fat heat radiation of hydrostatic system.Solved existing shuttle valve reaction responsive not, the problem of long easy leakage service time.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals: a kind of deep fat shuttle valve, comprise swivel nut, be arranged on the valve pocket on swivel nut, be provided with oil outlet on described valve pocket, described oil outlet both sides are respectively arranged with that first enters oilhole and second enters oilhole, be provided with the sliding valve core that is glued with described valve sleeving inner wall in described valve pocket, be provided with spring seat in described swivel nut, be provided with spring on described spring seat, described spring is connected with the sliding valve core afterbody, leave gap between described sliding valve core afterbody and described spring seat, leave gap between described sliding valve core top and valve pocket, be provided with first guide groove and second guide groove on described sliding valve core, described first guide groove length is greater than described oil outlet and described first enters the distance between oilhole, described second guide groove length is greater than described oil outlet and described second enters the distance between oilhole, described sliding valve core afterbody is provided with the first through hole, the described first through hole the other end is communicated with described first guide groove, described sliding valve core top is provided with the second through hole, the described second through hole the other end is communicated with described second guide groove.Arrange like this, be provided with valve pocket on swivel nut, swivel nut bottom is provided with spring seat, is provided with in valve pocket and is close to the sliding valve core that valve sleeving inner wall can leakage of oil, spring is set on spring seat and connects sliding valve core, leave space between sliding valve core and spring seat and also leave space with the valve pocket top.The sliding valve core surface has first guide groove and second guide groove, and it is identical and not identical with oil outlet that first guide groove initial position and first on valve pocket enter oilhole; It is identical and not identical with oil outlet that second guide groove initial position and second on valve pocket enter oilhole.Sliding valve core inside also is provided with first through hole and second through hole, and these two through holes connect respectively gap between first guide groove and sliding valve core and spring seat and the gap between second guide groove and sliding valve core and valve pocket.
In use, if it is fuel-displaced that first enters oilhole, just formed high pressure side, the pressure of generation will be transmitted to the gap between sliding valve core and spring seat by first guide groove and first through hole, then will promote sliding valve core and slide, make first enter oilhole and be communicated with oil outlet formation loop by the first guide groove.After the fluid circulation, pressure drop, the effect lower slider valve core reset at spring, make first enter oilhole and lose and be connected with oil outlet.In like manner, if it is fuel-displaced that second enters oilhole, also formed high pressure side, the pressure of generation will be transmitted to the gap between sliding valve core and valve pocket by second guide groove and second through hole, then will promote sliding valve core and slide, make second enter oilhole and be communicated with oil outlet formation loop by the second guide groove.After the fluid circulation, pressure drop, the effect lower slider valve core reset at spring, make second enter oilhole and lose and be connected with oil outlet.If first enters oilhole and second, to enter oilhole simultaneously fuel-displaced, is that the side that pressure is high is communicated with oil outlet all the time.Replace steel ball with sliding valve core, make the shuttle valve reaction sensitiveer, longer service life, better tightness, stroke is more accurate, and the pressure can bear is higher.
In technique scheme, preferred, be provided with several balancing slits on described sliding valve core sidewall.Arrange like this, energy anti-skidding spool is stuck in movement.
In technique scheme, preferably, described spring seat is slidably arranged in described swivel nut, be provided with screw in described spring seat, described screw is connected with described sliding valve core afterbody through described spring seat, be provided with screw thread in described first through hole, described screw is fixed in described first through hole.Arrange like this, be provided with screw in spring seat, screw is connected with sliding valve core afterbody first through hole by spring seat, can adjust the elastic force of the degree of tightness control spring of screw and sliding valve core, even shuttle valve uses in different machines, the pressure that enters oilhole varies, and can use screw to adjust elastic force, makes the shuttle valve reaction sensitiveer.After screw is fixedly linked by sliding valve core and spring seat, spring seat can in swivel nut, be slided, spring seat and sliding valve core just can integrated movings like this.
In technique scheme, preferably, be fixedly installed back-up ring in described swivel nut, described back-up ring inwall abuts on described sliding valve core, be provided with the third through hole on described sliding valve core, described the third through hole is communicated with the gap between described first through hole and described sliding valve core and described back-up ring.Arrange like this, between back-up ring and sliding valve core, have gap, pressure can be transmitted to this gap promotion sliding valve core and move.
In technique scheme, preferred, described spring seat bottom is provided with block plate, is connected with the spring bottom on described block plate, and described spring top props up described back-up ring.Arrange like this, even spring seat and sliding valve core integrated moving, diminish rear spring seat and sliding valve core of pressure also can be returned to original position under the effect of spring.
Compared with prior art, the beneficial effects of the utility model are: make closing and resetting more accurately of sliding valve core in shuttle valve, opens more stablely, bear pressure higher, and more compact structure, sealability is better, realizes that the deep fat of hydrostatic system dispels the heat.Solved existing shuttle valve reaction responsive not, the problem of long easy leakage service time.
The accompanying drawing explanation
Fig. 1 is the utility model cross-sectional schematic.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Shown in Figure 1, a kind of deep fat shuttle valve, comprise swivel nut 1, be arranged on the valve pocket 2 on swivel nut 1, is provided with oil outlet 3 on valve pocket 2, first enters oilhole 4 and second enters oilhole 5, be provided with the sliding valve core 6 of being close to valve pocket 2 inwalls in valve pocket 2, can leakage of oil between sliding valve core 6 and valve pocket 2.Sliding valve core 6 surfaces are provided with several balancing slits 19, and energy anti-skidding spool 6 is stuck in movement.Be provided with back-up ring 10 in swivel nut 1, back-up ring 10 closely abuts in sliding valve core 6 surfaces.Mobile spring seat 7 also is set in swivel nut 1, and spring seat 7 bottoms are provided with block plate 18, and spring 9 is arranged on block plate 18, and the other end props up back-up ring 10.Spring seat 7 the insides are provided with screw 7, and screw 7 passes spring seat 7.Be provided with first guide groove 14 and second guide groove 15 on sliding valve core 6, sliding valve core 6 afterbodys are provided with first through hole 11, and first through hole 11 connects hole 16 by first and is communicated with first guide grooves 14, and are provided with screw thread in first through hole 11 and are connected with screw 7.Sliding valve core 6 tops are provided with second through hole 12, and second through hole 12 connects hole 17 by second and connects second guide groove 15.Also be provided with the third through hole 13, the third through holes 13 in sliding valve core 6 and be communicated with first through hole 11 and the gap of back-up ring 10 with sliding valve core 6 formation.The length of first guide groove 14 is greater than oil outlet 3 and first enters the distance between oilhole 4, and first guide groove 14 connection first enter oilhole 4 and are not communicated with oil outlet 3 when initial position.The length of second guide groove 15 is greater than oil outlet 3 and second enters the distance between oilhole 5, and second guide groove 15 connection second enter oilhole 5 and are not communicated with oil outlet 3 when initial position.
Working principle of the present utility model is, when first enters oilhole 4 when fuel-displaced, produce high pressure and form high pressure side, this pressure can be transmitted to by first guide groove 14, first through hole 11, the third through hole 13 gap of back-up ring 10 and sliding valve core 6 formation, this pressure forces sliding valve core 6 to move right together with spring seat 7, first guide groove 14 can allow first enter oilhole 4 to be communicated with oil outlet 3, and at this moment spring 9 is just compressed.When fluid has circulated, the elastic force hour of pressure ratio spring 9, sliding valve core 6 will reset with spring seat 7, is moved to the left, and makes first guide groove 14 detach oilhole 3, and first enters oilhole 4 and disconnects with oil outlet 3.In like manner, when second enters oilhole 5 when fuel-displaced, produce high pressure and form high pressure side, this pressure can be by second guide groove 15, second through hole 12, be transmitted to the gap that valve pocket 2 and sliding valve core 6 form, this pressure forces sliding valve core 6 to be moved to the left together with spring seat 7, second guide groove 15 can allow second enter oilhole 5 to be communicated with oil outlet 3, and at this moment spring 9 is just compressed.When fluid has circulated, the elastic force hour of pressure ratio spring 9, sliding valve core 6 will reset with spring seat 7, moves left to the right, makes second guide groove 15 detach oilhole 3, and second enters oilhole 5 and disconnects with oil outlet 3.If first enters oilhole 4 and second, to enter oilhole 5 simultaneously fuel-displaced, is that the oilhole that enters that pressure is larger is communicated with oil outlet 3 all the time.Can adjust the elastic force of the degree of tightness control spring 9 of screw 8 and sliding valve core 6, even shuttle valve uses in different machines, the pressure that enters oilhole varies, and can use screw 8 to adjust elastic force, makes the shuttle valve reaction sensitiveer.This set, closing and resetting more accurately of sliding valve core 6, open more stablely, bears pressure higher, more compact structure, sealability is better.
Claims (5)
1. a deep fat shuttle valve, comprise swivel nut (1), be arranged on the valve pocket (2) on swivel nut (1), it is characterized by, be provided with oil outlet (3) on described valve pocket (2), described oil outlet (3) both sides are respectively arranged with that first enters oilhole (4) and second enters oilhole (5), be provided with the sliding valve core (6) that is glued with described valve pocket (2) inwall in described valve pocket (2), be provided with spring seat (7) in described swivel nut (1), be provided with spring (9) on described spring seat (7), described spring (9) is connected with sliding valve core (6) afterbody, leave gap between described sliding valve core (6) afterbody and described spring seat (7), leave gap between described sliding valve core (6) top and valve pocket (2), be provided with first guide groove (14) and second guide groove (15) on described sliding valve core (6), described first guide groove (14) length is greater than described oil outlet (3) and described first enters the distance between oilhole (4), described second guide groove (15) length is greater than described oil outlet (3) and described second enters the distance between oilhole (5), described sliding valve core (6) afterbody is provided with first through hole (11), described first through hole (11) the other end is communicated with described first guide groove (14), described sliding valve core (6) top is provided with second through hole (12), described second through hole (12) the other end is communicated with described second guide groove (15).
2. a kind of deep fat shuttle valve according to claim 1, be provided with several balancing slits (19) on described sliding valve core (6) sidewall.
3. a kind of deep fat shuttle valve according to claim 1, it is characterized by, described spring seat (7) is slidably arranged in described swivel nut (1), be provided with screw (8) in described spring seat (7), described screw (8) is connected with described sliding valve core (6) afterbody through described spring seat (7), be provided with screw thread in described first through hole (11), described screw (8) is fixed in described first through hole (11).
4. a kind of deep fat shuttle valve according to claim 3, it is characterized by, be fixedly installed back-up ring (10) in described swivel nut (1), described back-up ring (10) inwall abuts on described sliding valve core (6), be provided with the third through hole (13) on described sliding valve core (6), described the third through hole (13) is communicated with the gap between described first through hole (11) and described sliding valve core (6) and described back-up ring (10).
5. a kind of deep fat shuttle valve according to claim 4, it is characterized by, described spring seat (7) bottom is provided with block plate (18), is connected with spring (9) bottom on described block plate (18), and described spring (9) top props up described back-up ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320391738.6U CN203374884U (en) | 2013-07-03 | 2013-07-03 | Hot oil shuttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320391738.6U CN203374884U (en) | 2013-07-03 | 2013-07-03 | Hot oil shuttle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374884U true CN203374884U (en) | 2014-01-01 |
Family
ID=49837413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320391738.6U Expired - Fee Related CN203374884U (en) | 2013-07-03 | 2013-07-03 | Hot oil shuttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203374884U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108626433A (en) * | 2018-06-22 | 2018-10-09 | 陶爱珍 | A kind of pressure-gradient control valve |
-
2013
- 2013-07-03 CN CN201320391738.6U patent/CN203374884U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108626433A (en) * | 2018-06-22 | 2018-10-09 | 陶爱珍 | A kind of pressure-gradient control valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107091255A (en) | A kind of side valve type asymmetric cylinder bidirectional hydraulic balance system | |
| CN203374884U (en) | Hot oil shuttle valve | |
| CN103542647B (en) | A kind of Bidirectional throttling electronic expansion valve | |
| CN203560542U (en) | Novel spring one-way valve | |
| CN104534114A (en) | Pilot bidirectional double-disc high-pressure gate valve | |
| CN104421466B (en) | A kind of constant pressure turn on device | |
| CN203718031U (en) | Button valve | |
| CN203394921U (en) | Plunger hydraulic cylinder | |
| CN208764332U (en) | A kind of Anti-leakage hydraulic valve | |
| CN202914801U (en) | Bi-directional fluid extra high voltage reversing valve of totally enclosed electromagnetic | |
| CN203274378U (en) | Bidirectional circulation expansion valve | |
| CN202202840U (en) | Double-tube safety control valve | |
| CN204553666U (en) | A kind of shock-resistant hydraulic damper | |
| CN104930105A (en) | Hydraulic damper | |
| CN203442247U (en) | Constant-pressure opening device | |
| CN104565423A (en) | Anti-ejection fixed ball valve | |
| CN204436923U (en) | A kind of mechanical throttle | |
| CN203703316U (en) | Normally-opened type pilot solenoid valve high in sensitivity | |
| CN108087531A (en) | Heat exchanger assembly | |
| CN208774751U (en) | A kind of electric cylinders structure of integrated electrical control braking force aid system | |
| CN104235097B (en) | Pressure-compensated valve | |
| CN210343902U (en) | Hydraulic valve with steel ball positioning structure | |
| CN203880145U (en) | Pressure maintaining and relief hydraulic valve with multiple oil outlet passages | |
| CN204553897U (en) | The self-powering type seal arrangement of ultrahigh pressure balance stop valve | |
| CN114458648B (en) | Hydraulic system parallel connection device based on Tesla 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: 20140101 Termination date: 20170703 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |