CN104653538A - Stress-free valve structure - Google Patents
Stress-free valve structure Download PDFInfo
- Publication number
- CN104653538A CN104653538A CN201510067149.6A CN201510067149A CN104653538A CN 104653538 A CN104653538 A CN 104653538A CN 201510067149 A CN201510067149 A CN 201510067149A CN 104653538 A CN104653538 A CN 104653538A
- Authority
- CN
- China
- Prior art keywords
- valve
- core
- valve core
- valve port
- spring
- 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.)
- Granted
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Classifications
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Multiple-Way Valves (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a stress-free valve structure, which comprises a valve seat, a valve core element and a spring, wherein a valve opening penetrating through the upper plane and the lower plane is formed in the valve seat, the valve opening is in a cylindrical shape, in addition, the caliber of the valve opening is constant, the valve core element is clamped in the valve opening, in addition, the upper end of the valve corer element penetrates out of the valve opening, the spring is connected with the bottom end of the valve core element, the upper end of the valve core element is provided with a water inlet, the water inlet penetrates through the lower bottom surface of the valve core element, the valve core element comprises an upper valve core and a lower valve core, the upper valve core adapts to the valve opening structure, and seals the upper end of the valve opening, the lower valve core is clamped at an opening part formed in the lower end of the valve opening, and seals the opening formed in the lower end of the valve opening, the upper valve core and the lower valve core are connected through a connecting core, and the middle part of the valve seat is provided with a water outlet. The valve opening is of a cylindrical structure, and in addition, the whole caliber is consistent, so that the contact area between the upper valve core and liquid as well as the contact area between the lower valve core and liquid in the valve opening are consistent, and the upward pushing force and the downward pressure are mutually counteracted. The stress-free valve structure has the advantages that the stress-free effect in the work process is achieved, and the stability of the valve core position is ensured.
Description
Technical field
The present invention relates to a kind of hydraulic fittings, especially relate to a kind of unstressed valve body structure.
Background technique
Valve be utilize a movable part come open and close or part block opening or passage, fluid can be flowed out, blocks or adjusted a kind of device.Hydrovalve of the prior art, adopts steel ball or metal cone guiding valve to contact with the aperture of metal seat valve under spring and fluid pressure action as spool and compresses.Operationally, the fluid come from valve body front fluid passage backs down spool under the effect of the pressure and flows out valve body.When decompression or after applying directional pressure, valve core reset, valve body is closed.In order to ensure circulation area, the runner at valve body rear is comparatively large, and the front current applied pressure that spool is subject to when fluid circulates also receives rear current applied pressure simultaneously.Because the area of runner before and after spool is different, the liquid applied pressure that spool is subject to is also different, and the pressure now depending merely on spring is difficult to the stability controlling valve element position, can have influence on the Flow-rate adjustment of fluid.When the front and back runner gap of valve body is larger, the folding of valve body even can be had influence on.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of unstressed valve body structure, can adapt to multiple environment.When fluid circulates, ensure the stability of valve element position.
The present invention solves the problems of the technologies described above adopted technological scheme: a kind of unstressed valve body structure, comprise valve seat, core member and spring, described valve seat is provided with the valve port running through lower planes, described valve port is cylindric and the bore of valve port is constant, described core member is stuck in valve port and the upper end of core member passes valve port, described spring is connected with the bottom of core member, the upper end of described core member is provided with water inlet, described water inlet has run through the bottom surface of core member, described core member comprises upper valve core and lower valve core, described upper valve core and described valve mouth structure adapt and are sealed valve port upper end, described lower valve core is stuck in valve port lower ending opening place and is sealed by valve port lower ending opening, described upper valve core is connected by connecting core with between lower valve core, the middle part of described valve seat is provided with water outlet,
Fluid arrives spring position after entering spool by water inlet, and spring controlled valve core moves the lower ending opening opening valve port, and fluid is flowed out by the water outlet on valve seat after entering valve port.
Described connecting core is cylindrical structure, the diameter length of described connecting core is less than the diameter length of valve port, the diameter length of described upper valve core equals the diameter length of valve port, described lower valve core is truncated cone shape structure, the diameter length of described lower valve core upper-end surface equals the diameter length of connecting core, and the diameter length of described lower valve core lower end surface is greater than the diameter length of valve port.The size of valve design chipware like this and valve port can ensure structure of the present invention.
The below of described core member is provided with groove, and described spring fitting is in groove, and described lower valve core is movable in groove under the promotion of spring.When fluid enters in spring position place and groove, fluid cannot flow out by other means, can only be moved valve open by direction of flow water outlet by core member.
The upper end of described upper valve core passes the upper-end surface of valve port, and the bottom surface of below and lower valve core that described spring is positioned at lower valve core is connected, and the opening of described water inlet is positioned at the upper side of upper valve core.Water inlet opening is arranged on side and ensure that fluency into water.
The top of described core member is provided with push rod, and described push rod is connected with the upper-end contact of upper valve core.Push rod is used for the decrement of control spring, controls the fluid flow by valve port thus.
Described water outlet is positioned at the side of described connecting core.After the setting of water outlet position ensure that fluid enters valve port, the power that core member is subject to can be cancelled out each other.
Compared with prior art, the invention has the advantages that fluid passes through the water inlet be arranged in core member and enters spool, and water inlet has run through whole core member, the bottom surface from core member is flowed into spring position by fluid.Spring controlled valve chipware moves down, then fluid enters valve port by the lower ending opening place of valve port, and is flowed out by the water outlet of valve seat side.Upper valve core one thrust upwards can be applied to after fluid enters valve port, be applied to the pressure that lower valve core one is downward simultaneously.And valve port is cylindrical-shaped structure and overall bore is consistent, therefore consistent with the area of contact of the upper valve core of fluid contact, lower valve core in valve port, thrust upwards and downward pressure are cancelled out each other.The present invention thus achieves in work unstressed, ensure that the stability of valve element position, can be applicable to the environment that runner size exists gap.
Accompanying drawing explanation
Fig. 1 is assembling schematic diagram of the present invention;
Fig. 2 is structural representation of the present invention;
Fig. 3 is sectional view of the present invention;
Fig. 4 is the sectional view after the present invention assembles.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
As shown in Figures 1 to 4: a kind of unstressed valve body structure, comprise valve seat 1, core member 2 and spring 3, valve seat 1 is provided with the valve port 4 running through lower planes, valve port 4 is that bore that is cylindric and valve port 4 is constant, core member 2 is stuck in valve port 4 and the upper end of core member 2 passes valve port 4, spring 3 is connected with the bottom of core member 2, the upper end of core member 2 is provided with water inlet 5, water inlet 5 has run through the bottom surface of core member 2, core member 2 comprises upper valve core 21 and lower valve core 22, upper valve core 21 and valve port 4 structure adapt and are sealed valve port 4 upper end, lower valve core 22 is stuck in valve port 4 lower ending opening place and is sealed by valve port 4 lower ending opening, be connected by connecting core 23 between upper valve core 21 with lower valve core 22, the middle part of valve seat 1 is provided with water outlet 7, fluid arrives spring 3 position after entering spool by water inlet 5, and spring 3 controls spool and moves the lower ending opening opening valve port 4, is flowed out after fluid enters valve port 4 by the water outlet 7 on valve seat 1.
Connecting core 23 is cylindrical structure, the diameter length of connecting core 23 is less than the diameter length of valve port 4, the diameter length of upper valve core 21 equals the diameter length of valve port 4, lower valve core 22 is truncated cone shape structure, the diameter length of lower valve core 22 upper-end surface equals the diameter length of connecting core 23, and the diameter length of lower valve core 22 lower end surface is greater than the diameter length of valve port 4.
The below of core member 2 is provided with groove 6, and spring 3 is arranged in groove 6, and lower valve core 22 is movable in groove 6 under the promotion of spring 3.The upper end of upper valve core 21 passes the upper-end surface of valve port 4, and the below that spring 3 is positioned at lower valve core 22 is connected with the bottom surface of lower valve core 22, and the opening of water inlet 5 is positioned at the upper side of upper valve core 21.The top of core member 2 is provided with push rod 8, and push rod 8 is connected with the upper-end contact of upper valve core 21.Water outlet 7 is positioned at the side of connecting core 23.
Claims (6)
1. a unstressed valve body structure, comprise valve seat, core member and spring, it is characterized in that described valve seat being provided with the valve port running through lower planes, described valve port is cylindric and the bore of valve port is constant, described core member is stuck in valve port and the upper end of core member passes valve port, described spring is connected with the bottom of core member, the upper end of described core member is provided with water inlet, described water inlet has run through the bottom surface of core member, described core member comprises upper valve core and lower valve core, described upper valve core and described valve mouth structure adapt and are sealed valve port upper end, described lower valve core is stuck in valve port lower ending opening place and is sealed by valve port lower ending opening, described upper valve core is connected by connecting core with between lower valve core, the middle part of described valve seat is provided with water outlet,
Fluid arrives spring position after entering spool by water inlet, and spring controlled valve core moves the lower ending opening opening valve port, and fluid is flowed out by the water outlet on valve seat after entering valve port.
2. the unstressed valve body structure of one according to claim 1, it is characterized in that described connecting core is cylindrical structure, the diameter length of described connecting core is less than the diameter length of valve port, the diameter length of described upper valve core equals the diameter length of valve port, described lower valve core is truncated cone shape structure, the diameter length of described lower valve core upper-end surface equals the diameter length of connecting core, and the diameter length of described lower valve core lower end surface is greater than the diameter length of valve port.
3. the unstressed valve body structure of one according to claim 2, is characterized in that the below of described core member is provided with groove, and described spring fitting is in groove, and described lower valve core is movable in groove under the promotion of spring.
4. the unstressed valve body structure of one according to claim 3, it is characterized in that the upper end of described upper valve core passes the upper-end surface of valve port, the bottom surface of below and lower valve core that described spring is positioned at lower valve core is connected, and the opening of described water inlet is positioned at the upper side of upper valve core.
5. the unstressed valve body structure of one according to claim 1, it is characterized in that the top of described core member is provided with push rod, described push rod is connected with the upper-end contact of upper valve core.
6. the unstressed valve body structure of one according to claim 1, is characterized in that described water outlet is positioned at the side of described connecting core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510067149.6A CN104653538B (en) | 2015-02-06 | 2015-02-06 | A kind of unstressed valve body structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510067149.6A CN104653538B (en) | 2015-02-06 | 2015-02-06 | A kind of unstressed valve body structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104653538A true CN104653538A (en) | 2015-05-27 |
| CN104653538B CN104653538B (en) | 2018-03-13 |
Family
ID=53245048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510067149.6A Expired - Fee Related CN104653538B (en) | 2015-02-06 | 2015-02-06 | A kind of unstressed valve body structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104653538B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6644025B1 (en) * | 1999-02-05 | 2003-11-11 | Bosch Rexroth Ag | Control arrangement for at least two hydraulic consumers and pressure differential valve for said control arrangement |
| CN2665428Y (en) * | 2003-11-14 | 2004-12-22 | 吕文 | Dump truck hydraulic control valve |
| CN201284857Y (en) * | 2008-10-31 | 2009-08-05 | 徐州重型机械有限公司 | Balance valve |
| CN201615246U (en) * | 2010-03-29 | 2010-10-27 | 上海恒温控制器厂有限公司 | Double-valve port mechanism for flow control valve |
| CN201908883U (en) * | 2010-12-29 | 2011-07-27 | 上海美钻设备成套有限公司 | Two-position three-way pilot reversing valve |
| CN102454652A (en) * | 2011-11-18 | 2012-05-16 | 广西柳工机械股份有限公司 | Adjustable hydraulic pilot opening mechanism |
| CN102454650A (en) * | 2011-09-07 | 2012-05-16 | 广西柳工机械股份有限公司 | Hydraulic differential pilot opening mechanism |
| CN104074822A (en) * | 2014-06-26 | 2014-10-01 | 无锡市威海达机械制造有限公司 | Manual return check valve |
| CN204476909U (en) * | 2015-02-06 | 2015-07-15 | 东西方(宁海)航空科技发展有限公司 | A kind of unstressed valve body structure |
-
2015
- 2015-02-06 CN CN201510067149.6A patent/CN104653538B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6644025B1 (en) * | 1999-02-05 | 2003-11-11 | Bosch Rexroth Ag | Control arrangement for at least two hydraulic consumers and pressure differential valve for said control arrangement |
| CN2665428Y (en) * | 2003-11-14 | 2004-12-22 | 吕文 | Dump truck hydraulic control valve |
| CN201284857Y (en) * | 2008-10-31 | 2009-08-05 | 徐州重型机械有限公司 | Balance valve |
| CN201615246U (en) * | 2010-03-29 | 2010-10-27 | 上海恒温控制器厂有限公司 | Double-valve port mechanism for flow control valve |
| CN201908883U (en) * | 2010-12-29 | 2011-07-27 | 上海美钻设备成套有限公司 | Two-position three-way pilot reversing valve |
| CN102454650A (en) * | 2011-09-07 | 2012-05-16 | 广西柳工机械股份有限公司 | Hydraulic differential pilot opening mechanism |
| CN102454652A (en) * | 2011-11-18 | 2012-05-16 | 广西柳工机械股份有限公司 | Adjustable hydraulic pilot opening mechanism |
| CN104074822A (en) * | 2014-06-26 | 2014-10-01 | 无锡市威海达机械制造有限公司 | Manual return check valve |
| CN204476909U (en) * | 2015-02-06 | 2015-07-15 | 东西方(宁海)航空科技发展有限公司 | A kind of unstressed valve body structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104653538B (en) | 2018-03-13 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20180313 Termination date: 20210206 |