CN202203463U - Pressure adjusting valve - Google Patents
Pressure adjusting valve Download PDFInfo
- Publication number
- CN202203463U CN202203463U CN2011203037442U CN201120303744U CN202203463U CN 202203463 U CN202203463 U CN 202203463U CN 2011203037442 U CN2011203037442 U CN 2011203037442U CN 201120303744 U CN201120303744 U CN 201120303744U CN 202203463 U CN202203463 U CN 202203463U
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- CN
- China
- Prior art keywords
- valve
- valve seat
- spring
- screw
- pressure adjusting
- 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
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Abstract
The utility model discloses a pressure adjusting valve, which comprises a valve body, a pressure adjusting hand knob, a pressure adjusting screw, a spring, a valve core and a valve seat; the valve body is provided with an oil inlet passage, an overflow passage and a valve seat installation passage which are communicated with one another; the valve core is arranged in the valve seat; the valve seat is arranged in the valve seat installation passage; a screw sleeve for sealing the valve seat installation passage is arranged above the valve seat installation passage; the screw sleeve is in threaded connection with the valve seat installation passage; one end of the spring is arranged on the valve core, and a spring seat is arranged at the other end of the spring; and one end of the pressure adjusting screw is connected with the pressure adjusting hand knob, and the other end of the pressure adjusting screw is connected with a screw hole of the screw sleeve. The pressure adjusting valve is characterized in that: the valve core comprises a conical head and a cylindrical body, the conical head of the valve core is matched with a valve hole of the valve seat, the cylindrical body of the valve core is put into a blind hole of the valve seat, and a plurality of oblique holes are uniformly distributed in the circumferential direction of the valve seat. The pressure adjusting valve has the advantages of reasonable structure, wide effective pressure adjusting range, pressure adjusting sensitivity and stable pressure increasing and reducing change.
Description
Technical field
The utility model relates to a kind of control valve unit, relates in particular to a kind of pressure regulator valve.
Background technique
At present; The pressure regulator valve that in lubricated and small-sized hydraulic system, uses is the structure of needle valve or plunger type mostly; When its actual use, have following shortcoming: the pressure regulator valve of this class formation is because the end thrust of bearing at Intermediate High Pressure state lower valve core is big, and the spring structure of then being joined is also bigger, causes the pressure regulator valve overall structure bigger than normal; Pressure regulation is insensitive; Effectively range of regulation is narrow, and the stationarity and the retentivity of pressure regulation are poor, thereby pressure regulator valve has become one of major failure source that whole lubricated and small-sized hydraulic system can not reliable operation.Therefore, should provide a kind of new technological scheme to address the above problem.
Summary of the invention
The purpose of the utility model is: to above-mentioned deficiency, provide a kind of rational in infrastructure, effectively range of regulation is wide, and pressure regulation is sensitive, and pressure lifting changes steadily, pulsating movement free and the good pressure regulator valve of retentivity.
For realizing above-mentioned purpose, the technological scheme that the utility model adopts is:
Pressure regulator valve comprises that valve body, pressure regulation hand are turned round, pressure regulating screw, spring, spool and valve seat, and said valve body is provided with oil inlet passage, overflow ducts and the valve seat installation channel that is interconnected; Said oil inlet passage, oil spilling passage and valve seat installation channel are positioned on the same plane, and said spool is installed in the valve seat, and said valve seat is located in the valve seat installation channel; The top of said valve seat installation channel is provided with the swivel nut of closed valve seat installation channel; Said swivel nut is threaded with the valve seat installation channel, and an end of said spring is installed on the spool, and the other end of spring is equipped with spring seat; Said spring and spring seat all place in the screw of swivel nut; One end of said pressure regulating screw is turned round with the pressure regulation hand and is connected, and the other end of pressure regulating screw is connected with the screw of swivel nut, and said pressure regulation hand is turned round and is provided with the fixedly fastening piece of pressure regulating screw in the screw on the periphery; Said spool comprises conical head and columniform body; The valve opening of conical spool head and valve seat matches, and columniform valve core is deployed in the blind hole of valve seat, and the circumferencial direction of said valve seat is evenly equipped with a plurality of slope holes.
Further, on the cylindrical of said spring seat the seal ring I is installed.
Further, on the cylindrical of said swivel nut the seal ring II is installed.
Further, said fastening piece is a fastening screw trip bolt.
The pressure regulator valve of the utility model, spool are to be made up of conical head and columniform body, when pressure regulation is used; The conical head of spool and the good airproof performance of valve seat orifice; Columniform spool body cooperates guiding in the valve seat blind hole, resiliency is good, and the end thrust that spool bears is little; The corresponding physical dimension that reduces parts such as spring, thereby the use that the structure that makes pressure regulator valve has more rationally also been saved material.
The utility model has the advantages that: rational in infrastructure, effectively range of regulation is wide, and pressure regulation is sensitive, and pressure lifting changes steadily, pulsating movement free and retentivity are good.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.
Sectional view when Fig. 1 is the utility model pressure regulator valve spool state in the closed position.
Fig. 2 is the sectional view of the utility model pressure regulator valve spool when being shown in an open position state.
Wherein: 1, fastening screw trip bolt, 2, pressure regulating screw, 3, the pressure regulation hand turns round, 4, spring seat, 5, the seal ring I; 6, spring, 7, swivel nut, 8, the seal ring II, 9, spool, 10, valve seat; 11, blind hole, 12, the valve seat installation channel, 13, valve body, 14, oil inlet passage; 15, oil spilling passage, 16, the spool head, 17, the spool body, 18, the hole.
Embodiment 1
As shown in Figure 1, the utility model pressure regulator valve comprises that valve body 13, pressure regulation hand turn round 3, pressure regulating screw 2, spring 6, spool 9 and valve seat 10, and valve body 13 is provided with oil inlet passage 14, oil spilling passage 15 and the valve seat installation channel 12 that is interconnected.Oil inlet passage 14, oil spilling passage 15 are positioned on the same plane with valve seat installation channel 12.Spool 9 is installed in the valve seat 10, and valve seat 10 is arranged in valve seat installation channel 12, and swivel nut 7 is screwed in the interior threaded hole of valve seat installation channel 12 through the outside thread on it, fixes valve seat 10 after tightening, and on swivel nut 7 cylindricals seal ring II 8 is housed.One end of spring 6 is installed on the spool 9, and the other end of spring 6 is equipped with spring seat 4, and seal ring I 5 is housed on the cylindrical of spring seat 4, and spring 6 all places in the screw of swivel nut 7 with spring seat 4.Pressure regulating screw 2 one ends are screwed in swivel nut 7 screws, and the other end is screwed into the pressure regulation hand and turns round in 3 the screw.Fastening screw trip bolt 1 is screwed into the pressure regulation hand and turns round on 3 peripheries screw internal fixation and live pressure regulating screw 2; Spool 9 comprises conical head 16 and columniform body 17; The valve opening of conical spool head 16 and valve seat 10 matches; Columniform spool body 17 places in the blind hole 11 of valve seat, and valve seat 10 circumferencial directions are evenly equipped with a plurality of slope holes 18.
The utility model pressure regulator valve, valve seat 10 circumferencial directions are evenly equipped with a plurality of slope holes 18.The bottom of valve seat 10 is set to blind hole simultaneously; Oil sources medium in the oil inlet passage will act on the surface of spool through slope hole 18, and the end thrust that spool bore will reduce greatly, in addition when pressure regulation is used; The conical head 16 of spool and the good airproof performance of valve seat orifice; Columniform spool body 17 cooperates guiding in valve seat blind hole 11, resiliency is good, and the end thrust that spool bears is little; The corresponding physical dimension that reduces parts such as spring, thereby the use that the structure that makes pressure regulator valve has more rationally also been saved material.
Shown in Figure 1 is pressure regulator valve spool 9 states in the closed position.The hydraulic coupling of the oil sources medium in the oil inlet passage 14 acts on spool 9 surfaces and causes spool 9 to produce one end thrust to spring 6 directions, the elastic force after this end thrust is compressed less than spring 6, and then spool 9 does not have the state in the closed position that moves axially.
Shown in Figure 2 is that the pressure regulator valve spool is shown in an open position state.The structure of pressure regulator valve is identical with the structure of embodiment's 1 pressure regulator valve.
The hydraulic coupling of oil sources medium in the oil inlet passage 14; Acting on spool 9 surfaces causes spool 9 to produce one end thrust to spring 6 directions; Elastic force after this end thrust is compressed greater than spring 6; Then spool 9 overcomes spring force and moves axially to spring 6 directions, and the conical surface of spool 9 conical heads 16 and valve seat 10 aperture potted lines are thrown off, and oil overflow flows out from oil spilling passage 15.
The pressure regulation hand is turned round 3 and is twisted to clockwise direction, and the decrement of spring 6 increases, and its oil pressure relief value also increases thereupon; The pressure regulation hand is turned round 3 and is twisted to counter clockwise direction, and the decrement of spring 6 reduces, and its oil pressure relief value also reduces thereupon.
Claims (4)
1. pressure regulator valve comprises that valve body, pressure regulation hand are turned round, pressure regulating screw, spring, spool and valve seat, and said valve body is provided with oil inlet passage, overflow ducts and the valve seat installation channel that is interconnected; Said oil inlet passage, oil spilling passage and valve seat installation channel are positioned on the same plane, and said spool is installed in the valve seat, and said valve seat is located in the valve seat installation channel; The top of said valve seat installation channel is provided with the swivel nut of closed valve seat installation channel; Said swivel nut is threaded with the valve seat installation channel, and an end of said spring is installed on the spool, and the other end of spring is equipped with spring seat; Said spring and spring seat all place in the screw of swivel nut; One end of said pressure regulating screw is turned round with the pressure regulation hand and is connected, and the other end of pressure regulating screw is connected with the screw of swivel nut, and said pressure regulation hand is turned round and is provided with the fixedly fastening piece of pressure regulating screw in the screw on the periphery; It is characterized in that: said spool comprises conical head and columniform body; The valve opening of conical spool head and valve seat matches, and columniform valve core is deployed in the blind hole of valve seat, and the circumferencial direction of said valve seat is evenly equipped with a plurality of slope holes.
2. a kind of pressure regulator valve according to claim 1 is characterized in that: the seal ring I is installed on the cylindrical of said spring seat.
3. a kind of pressure regulator valve according to claim 1 is characterized in that: the seal ring II is installed on the cylindrical of said swivel nut.
4. a kind of pressure regulator valve according to claim 1 is characterized in that: said fastening piece is a fastening screw trip bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203037442U CN202203463U (en) | 2011-08-19 | 2011-08-19 | Pressure adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203037442U CN202203463U (en) | 2011-08-19 | 2011-08-19 | Pressure adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202203463U true CN202203463U (en) | 2012-04-25 |
Family
ID=45967584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203037442U Expired - Fee Related CN202203463U (en) | 2011-08-19 | 2011-08-19 | Pressure adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202203463U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678988A (en) * | 2012-05-18 | 2012-09-19 | 中山市亚泰机械实业有限公司 | Engine pressure regulation mechanism |
| TWI629425B (en) * | 2017-06-15 | 2018-07-11 | 邦查工業股份有限公司 | Adjustable pressure valve |
-
2011
- 2011-08-19 CN CN2011203037442U patent/CN202203463U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678988A (en) * | 2012-05-18 | 2012-09-19 | 中山市亚泰机械实业有限公司 | Engine pressure regulation mechanism |
| TWI629425B (en) * | 2017-06-15 | 2018-07-11 | 邦查工業股份有限公司 | Adjustable pressure valve |
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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 |
Granted publication date: 20120425 Termination date: 20170819 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |