CN101235832B - Hand-driven change valve - Google Patents
Hand-driven change valve Download PDFInfo
- Publication number
- CN101235832B CN101235832B CN2007100371069A CN200710037106A CN101235832B CN 101235832 B CN101235832 B CN 101235832B CN 2007100371069 A CN2007100371069 A CN 2007100371069A CN 200710037106 A CN200710037106 A CN 200710037106A CN 101235832 B CN101235832 B CN 101235832B
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- handle
- push rod
- hand
- protecgulum
- pin
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Abstract
The invention relates to a manual directional valve, which comprises a valve body, a front and a back covers, a valve plug assembly and a handle, wherein the front cover and the back cover are arranged on the front side and the back side of the valve body, the valve plug assembly is arranged in the inner portion of the valve body, the handle drives a valve plug in the valve plug assembly, and the handle is arranged on the outer portion of the front cover and is connected with the valve plug in the valve plug assembly through a link gear which is arranged in the front cover. The link gear comprises a push rod which is connected with a pin in the valve plug assembly, the push rod is vertically crossly connected with a handle shaft, and the handle is connected with one end of one side of the handle shaft, which is extended from the front cover. Because the handle is arranged outside the front cover by the manual directional valve, dust does not enter into the front cover, a prior rubber cup is capable of being cancelled, and the production and installment cost are reduced. When the rubber cup is cancelled, the reversing resistance of the handle is capable of being reduced, and the reduction effect is excellent. The manual directional valve of the invention has high flexibility and strong generality, and is capable of being suitable for wicked working environment. The pins which are arranged on the two ends of the valve plug have a same diameter, and pressure oil is not escaped through a seal ring which is arranged between the pin and a blind nut.
Description
Technical field
The present invention relates to technical field of hydraulic, concrete relate to a kind of hydraulic manual selector valve.
Background technique
Often use hand-operated direction valve in the hydraulic control system, be used for manually controlling the flow direction of hydraulic oil.Hand-operated direction valve of the prior art generally comprises valve body 1 ' as shown in Figure 1, the control spool 3 ' of valve body 1 ' inside, the Returnning spring at control spool 3 ' two ends, and control spool 3 ' movable handle 2 '.Handle 2 ' is arranged on protecgulum center upper portion position, and handle 2 ' bottom is equipped with rubber cup 21 ' and is blocked dust.But in use, leather cup 21 ' is thrown off, and exposes to the sun and rain aging easily easily in the open, and then the dustproof effect of influence; In addition.Leather cup 21 ' is installed has increased the commutation resistance of handle simultaneously, and when back pressure increases when causing the seal ring resistance also to increase, for the hand-operated direction valve of spring reset, the not well phenomenon that can reset influences the proper functioning of hydraulic system.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of hand-operated direction valve, to overcome the many defectives of existing in prior technology.
Technical problem to be solved by this invention can be achieved through the following technical solutions:
A kind of hand-operated direction valve, comprise valve body, be installed in the protecgulum and the bonnet on both sides, valve body front and back, and the Spool assembly that valve inner is set, the handle of the valve core movement in the actuating valve core assembly, it is characterized in that described handle is arranged on outside the protecgulum, it is connected with spool in the Spool assembly by the linking mechanism that is arranged in the protecgulum; Described linking mechanism comprises a push rod that is connected with an end bearing pin in the Spool assembly, and with the handle shaft that described push rod intersects vertically and is connected, described handle connects with the end that described handle shaft is stretched out protecgulum one side.
In the present invention, be connected by a pin between described push rod and the described handle shaft.
Described pin one end is a billiard table, and the other end is a cylindrical body, has a shaft shoulder between the two; The end that described push rod is connected with described pin offers a radial hole that holds described billiard table, and the end that described handle shaft is connected with described pin offers a radially shoulder hole that holds the described cylindrical body and the shaft shoulder.
The other end at described push rod offers axial bore that holds the bearing pin in the described Spool assembly and the radial screw bore that connects with described axial bore, is rotary with the screw that described bearing pin is connected with push rod in described radial screw bore.
In general, two in the hand control valve therefore correspondingly be provided with two to three locating slots on described push rod, and described protecgulum is provided with positioning means to three movement positions; Described positioning means comprises a plug screw, a spring, a spring seat, a location steel ball.For described positioning means is installed, on described protecgulum, offer seat hole in order to the inner bolt hole and the mounting spring seat of installation plug screw, described inner bolt hole and described seat hole are concentric; Described spring is arranged between described plug screw and the described spring seat; Described locking ball upper half part is inlaid in the groove of described spring seat bottom, and lower half portion drops in the locating slot of described push rod.
Offer the seal groove that holds seal ring on the described handle shaft, offer on the large cylinder of described handle shaft in order to the radial screw bore of handle to be installed, the bottom of described handle is rotatably connected in this radial screw bore.
The present invention is arranged on a side of protecgulum with handle, and is connected with push rod by one, by handle axle is rotated, and the rotation of axle promotes push rod left and right sides reciprocating action in the main aperture of protecgulum by pin, drive spool left and right sides reciprocating action realization commutation function.Because the present invention is arranged on handle outside the protecgulum, therefore not having dust enters into protecgulum, so can cancel existing rubber cup, has reduced production and installation cost.And cancellation can reduce handle commutation resistance, better reduction during rubber cup.Hand-operated direction valve flexibility height of the present invention, highly versatile can adapt to bad working environment.
Description of drawings
Describe the present invention in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is a hand-operated direction valve structural representation in the prior art;
Fig. 2 is a kind of hand-operated direction valve sectional drawing of the present invention;
Fig. 3 is a kind of hand-operated direction valve plan view of the present invention;
Fig. 4 is that the B-B of Fig. 2 is to sectional view;
Fig. 5 is a push rod sectional view of the present invention;
Fig. 6 is a pin sectional view of the present invention;
Fig. 7 is the sectional view of handle shaft of the present invention;
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Referring to Fig. 2, cartridge spool 17 in the main aperture in the valve body 16; Valve body main aperture two ends dress blind nut 13; The valve body left end is equipped with protecgulum 11 and seal ring 24, and is fixing by 4 screws 25; Valve body right-hand member dress bonnet 19 and seal ring 22, fixing by 4 screws 20.
The blind nut 13 of the left and right end of main aperture of valve body 16 is connected with valve body 16 by outside thread, has shoulder spacing on the blind nut 13, and shoulder and screw thread intersection have groove, places seal ring 23, is pressed between blind nut 13 and the valve body 16, prevents that hydraulic oil from leaking.
The left and right end of spool 17 is porose, adorns bearing pin 10,18 in the hole respectively, near the end arc groove is arranged in the hole, and dress back-up ring 14 blocks bearing pin 18 in the groove.What shoulder hole is arranged in the blind nut 13, minimum level hole dress bearing pin 18, hole, second level dress seal ring 21, this seal ring is used for preventing that hydraulic oil from leaking, third level hole dress packing ring 12, two step hole shock mounts 15 that the left side is bigger.
There is groove on protecgulum 11 right sides, place seal ring 24 in the groove, and this seal ring is used for preventing that dust from entering the inner chamber of protecgulum 11.In the protecgulum 11 main aperture is arranged, right-hand member has cylindrical, matches with the hole of valve body 16 left ends, plays positioning action, and the main aperture that makes protecgulum 11 keeps coaxial with the main aperture of valve body 16.
Referring to Fig. 3 one Fig. 7, push rod 6 is contained in the protecgulum 11.Push rod 6 has axial bore 65, interior dress bearing pin 10.Have on the push rod 6 and the described axial bore 65 vertical radial screw bore that connect 64, interior cartridge screw 9, screw 9 heads are cone, are stuck in the radial hole on the bearing pin 10, and bearing pin 10 and push rod 6 are fixed together.Push rod 6 radial hole 61 arranged, the billiard table 72 of interior dress pin 7, there is the conical surface 62 in the aperture, there is plane 63 at vertical place, aperture, and pin 7 is swung radial hole 61 in flexibly.There are 2 to 3 locating slots 66 on the opposite of radial hole 61 on push rod 6, cooperates with locking ball 5, plays the role of positioning.Protecgulum 11 centers are the position on the lower side, and a penetration hole vertical with main aperture is arranged, interior dress handle shaft 8.
In the middle of the handle shaft 8 radial hole 84 is arranged, match with the cylindrical body 75 of pin 7.Radial hole one end has counterbore 83, cooperates the axial position of banking pin 7 with the shaft shoulder 74 of pin 7.
Between the billiard table 72 and the shaft shoulder 74 groove 73 is arranged on the pin 7, selling 7 ends has plane 71, can avoid pin 7 and push rod 6 to interfere when moving.
The penetration hole of small cylinder and protecgulum 11 matches on the handle shaft 8.In radial hole 84 both sides seal groove 82 is arranged, seal groove 82 built-in rings 26.
On the large cylinder 87 on the handle shaft 8 radial screw bore 86 is arranged, be used to install handle 1,85 pairs of handles of counterbore 1 carry out axial limiting.
Referring to Fig. 2, positioning means comprises a plug screw 2, a spring 3, a spring seat 4, a location steel ball 5 once more.Offer the seat hole in order to the inner bolt hole and the mounting spring seat 4 of installation plug screw 2 on protecgulum 11, inner bolt hole and described seat hole are concentric; Dress plug screw 2 in the inner bolt hole, seat hole built-in spring seat 4, plug screw 2 pressing springs 3, spring 3 pressing spring seats 4, locking ball 5 upper half part are inlaid in the groove of spring seat 4 bottoms, and lower half portion drops in the locating slot 66 of push rod 6.
During work:
Figure 2 shows that a kind of spool 17 of path pattern, spool 17 is subjected to the effect of two ends spring force and T oil circuit pressure to be in the centre of valve body 16, and the oil circuit path is: P cuts off, and A leads to T, and B leads to T.For steel ball location pattern, this moment, steel ball was stuck in that locating slot 66 of centre of push rod 6.
Push away left as handle 1, then handle 1 drive handle shaft 8 and pin 7 are rotated counterclockwise, and promote push rod 6, bearing pin 10, spool 17 etc. and move to left, and the oil circuit path is, and: P leads to A, and B leads to T.For steel ball location pattern, this moment, steel ball was stuck in that locating slot 66 of the right side of push rod 6.
Push away to the right as handle 1, then handle 1 drive handle shaft 8 and pin 7 turn clockwise, and promote push rod 6, bearing pin 10, spool 17 etc. and move to right, and the oil circuit path is, and: P leads to B, and A leads to T.For steel ball location pattern, this moment, steel ball was stuck in that locating slot 66 of a left side of push rod 6.
More than show and described basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (7)
1. hand-operated direction valve, comprise valve body, be installed in the protecgulum and the bonnet on both sides, valve body front and back, and the Spool assembly that valve inner is set, the handle of the valve core movement in the actuating valve core assembly, it is characterized in that described handle is arranged on outside the protecgulum, it is connected with spool in the Spool assembly by the linking mechanism that is arranged in the protecgulum; Described linking mechanism comprises a push rod that is connected with an end bearing pin in the Spool assembly, and with the handle shaft that described push rod intersects vertically and is connected, described handle is connected with the end that described handle shaft is stretched out protecgulum one side.
2. hand-operated direction valve according to claim 1 is characterized in that, is connected by a pin between described push rod and the described handle shaft.
3. hand-operated direction valve according to claim 2 is characterized in that, described pin one end is a billiard table, and the other end is a cylindrical body, has a shaft shoulder between the two; The end that described push rod is connected with described pin offers a radial hole that holds described billiard table, and the end that described handle shaft is connected with described pin offers a radially shoulder hole that holds the described cylindrical body and the shaft shoulder.
4. hand-operated direction valve according to claim 3, it is characterized in that, the other end at described push rod offers axial bore that holds the bearing pin in the described Spool assembly and the radial screw bore that connects with described axial bore, is rotary with the screw that described bearing pin is connected with push rod in described radial screw bore.
5. hand-operated direction valve according to claim 1 is characterized in that, correspondingly be provided with two to three locating slots on described push rod, and described protecgulum is provided with positioning means; Described positioning means comprises a plug screw, a spring, a spring seat, a location steel ball; Offer the seat hole in order to the inner bolt hole and the mounting spring seat of installation plug screw on described protecgulum, described inner bolt hole and described seat hole are concentric; Described spring is arranged between described plug screw and the described spring seat; Described locking ball upper half part is inlaid in the groove of described spring seat bottom, and lower half portion drops in the locating slot of described push rod.
6. hand-operated direction valve according to claim 1, it is characterized in that, offer the seal groove that holds seal ring on the described handle shaft, offer on the large cylinder of described handle shaft in order to the radial screw bore of handle to be installed, the bottom of described handle is rotatably connected in this radial screw bore.
7. hand-operated direction valve according to claim 1 is characterized in that the diameter of the bearing pin at the two ends in the described Spool assembly is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100371069A CN101235832B (en) | 2007-02-02 | 2007-02-02 | Hand-driven change valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100371069A CN101235832B (en) | 2007-02-02 | 2007-02-02 | Hand-driven change valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101235832A CN101235832A (en) | 2008-08-06 |
| CN101235832B true CN101235832B (en) | 2010-04-21 |
Family
ID=39919672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100371069A Expired - Fee Related CN101235832B (en) | 2007-02-02 | 2007-02-02 | Hand-driven change valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101235832B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666340B (en) * | 2008-09-03 | 2013-02-06 | 上海立新液压有限公司 | Reversing valve operated by handwheel |
| CN101876331B (en) * | 2010-07-27 | 2012-11-21 | 浙江苏强格液压股份有限公司 | Multiple directional control valve |
| CN102251999A (en) * | 2011-07-01 | 2011-11-23 | 上海强田流体技术有限公司 | Multiday valve rotated by handle |
| CN104047929A (en) * | 2014-05-31 | 2014-09-17 | 魏连营 | Reversing oil pump station device |
| CN104728204B (en) * | 2015-03-28 | 2017-02-01 | 合肥长源液压股份有限公司 | Distributor for tractor |
| CN104747521B (en) * | 2015-03-28 | 2018-05-22 | 合肥长源液压股份有限公司 | Used with tractor distributor equipped with high stability check valve |
| CN104747522B (en) * | 2015-03-28 | 2017-09-05 | 合肥长源液压股份有限公司 | Used with tractor distributor provided with balance guide rod |
| CN107345532B (en) * | 2017-08-31 | 2019-02-05 | 西京学院 | A kind of stroke control automatic reverse hydraulic circuit |
| CN108644172A (en) * | 2018-07-23 | 2018-10-12 | 山西精艺液压制造有限公司 | A kind of two-way reversal valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2054106U (en) * | 1989-05-05 | 1990-03-07 | 建设部长沙建筑机械研究所 | Multiple-way change valve with single valve stem |
| CN2148849Y (en) * | 1992-08-19 | 1993-12-08 | 新疆生产建设兵团农一师十三团修造厂 | Hand hydraulic change valve |
| CN2476673Y (en) * | 1999-12-07 | 2002-02-13 | 佳木斯液压件厂 | Pressure balance type hydraulic multichannel change valve operated by single bar |
| CN2697367Y (en) * | 2004-04-29 | 2005-05-04 | 闫学富 | Manual lock-opening type multi-channel change-valve |
| CN2823624Y (en) * | 2005-10-12 | 2006-10-04 | 江苏国瑞液压机械有限公司 | Dirt-proof self-locking multi-way valve |
-
2007
- 2007-02-02 CN CN2007100371069A patent/CN101235832B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2054106U (en) * | 1989-05-05 | 1990-03-07 | 建设部长沙建筑机械研究所 | Multiple-way change valve with single valve stem |
| CN2148849Y (en) * | 1992-08-19 | 1993-12-08 | 新疆生产建设兵团农一师十三团修造厂 | Hand hydraulic change valve |
| CN2476673Y (en) * | 1999-12-07 | 2002-02-13 | 佳木斯液压件厂 | Pressure balance type hydraulic multichannel change valve operated by single bar |
| CN2697367Y (en) * | 2004-04-29 | 2005-05-04 | 闫学富 | Manual lock-opening type multi-channel change-valve |
| CN2823624Y (en) * | 2005-10-12 | 2006-10-04 | 江苏国瑞液压机械有限公司 | Dirt-proof self-locking multi-way valve |
Non-Patent Citations (2)
| Title |
|---|
| 宋恩厚、缪吉美.组合式手动方向阀的新结构.机械工程师 第3期.1989,(第3期),40、41. |
| 宋恩厚、缪吉美.组合式手动方向阀的新结构.机械工程师 第3期.1989,(第3期),40、41. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101235832A (en) | 2008-08-06 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20100421 Termination date: 20160202 |