CN102878136A - Threaded cartridge valve - Google Patents
Threaded cartridge valve Download PDFInfo
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- CN102878136A CN102878136A CN2012103521374A CN201210352137A CN102878136A CN 102878136 A CN102878136 A CN 102878136A CN 2012103521374 A CN2012103521374 A CN 2012103521374A CN 201210352137 A CN201210352137 A CN 201210352137A CN 102878136 A CN102878136 A CN 102878136A
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- valve seat
- overflow
- repairing
- valve core
- oil
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Abstract
The invention discloses a threaded cartridge valve. A seal ring groove is formed between an oil filling inlet and an oil filling outlet of the inserting part of an oil filling valve seat; a through hole communicated with the front end and the rear end of an oil filling valve core is formed in the oil filling valve core; the inserting part of an overflow valve seat is in sealed connection with a seal ring through threads; the inserting part of the overflow valve seat and the seal ring are arranged in a rear end hole of the oil filling valve seat after being connected with each other; the front end, provided with an overflow inlet, of the overflow valve seat is inserted into a rear end hole of the oil filling valve core; a seal ring separating an overflow outlet form an overflow inlet is mounted between the front end of the overflow valve seat and the rear end hole of the oil filling valve core; an oil filling pressure setting spring is mounted between the overflow valve seat and the oil filling valve core; and the cross section of the minimum part of the through hole of the oil filling valve core 6 is equal to or larger than the valve seat port of the overflow valve seat 3. Compared with the prior art, the threaded cartridge valve has the advantage that the problems of large area, large material consumption and insensitive overburden overflow protection operation are solved.
Description
Technical field
The present invention relates to hydraulic transmission technology field, especially a kind of cartridge valve that is used for rising for hydraulic element such as oil cylinders pressurized overflow and negative pressure repairing.
Background technique
At present domestic production and being used for of using were played pressurized overflow and negative pressure repairing as hydraulic element such as oil cylinders valve has two kinds of mode of structure mostly, and a kind of is the combination brake switch and proporting that overload relief valve and the split of negative pressure Fill valve arrange; Another kind is to have the overload relief valve of pilot valve and the cartridge valve that the set of negative pressure Fill valve is integrated setting.These two kinds of valves can both play the function of overload protection and negative pressure repairing.But the former is because valve body arranges respectively, and its volume is large, and material consumption is many, also can be subject to because of its application of volume ambassador the restriction of usage space; Although the latter will be transshipped overflow and repairing and is integrated in the valve body, solve the problem that volume is large, material consumption is many, because the overload overflow need to promote main overflow spool by pilot valve, this structure can bring overload overflow reaction slow, and action is sensitive not.
Summary of the invention
The purpose of this invention is to provide a kind of screw-in cartridge valve, it is large that this screw-in cartridge valve not only can solve volume, the problem that material consumption is many, and have the insensitive problem of overload overflow protection action.
In order to address the above problem, the technical solution used in the present invention is: this screw-in cartridge valve, include the oil recharging valve core that is contained in the repairing valve seat, and be contained in overflow spool, the screw press in the relief valve seat and be contained in oil pressure relief setting spring between described overflow spool and the described screw press, described repairing valve seat has the clamping part that is positioned at the rear end and the side that is positioned at front end and is provided with the cartridge part that benefit there is not outlet, this cartridge part is provided with seal groove in its repairing import between the repairing outlet, described oil recharging valve core has the through hole that is communicated with its front-end and back-end; Described relief valve seat has the cartridge part that the clamping part that is positioned at the rear end and the side that is positioned at front end are provided with the overflow outlet; The cartridge part of described relief valve seat is threaded connection in the rear stomidium of described repairing valve seat, the front end that described relief valve seat is provided with overflow inlet is inserted in the rear stomidium of described oil recharging valve core, between described relief valve seat and described repairing valve seat, Sealing is housed, the seal ring of the described overflow outlet of isolation and overflow inlet is housed between the rear stomidium of the front end of described relief valve seat and described oil recharging valve core, between described relief valve seat and described oil recharging valve core the oil compensation pressure setting spring is housed, the minimum place cross-section area of described oil recharging valve core through hole is equal to or greater than the cross-section area of the valve seat mouth of described relief valve seat.
In the technological scheme of above-mentioned screw-in cartridge valve, scheme can also be more specifically: described oil recharging valve core and the coaxial setting of described overflow spool; Described screw press has been threaded connection the pressure regulation locking nut.
The alleged clamping part of the present invention refers to
Owing to adopted technique scheme, the present invention compared with prior art has following beneficial effect:
1. owing to be provided with seal groove between the repairing outlet of repairing valve seat and the repairing import, the repairing valve seat is made the form of plug-in mounting valve body, and filler opening one end of relief valve seat is inserted in the rear stomidium that is in the oil recharging valve core in the described repairing valve seat, therefore be equivalent to relief valve is integrated in the Fill valve and consist of the screw-in cartridge valve with overflow and repairing function, the overflow of this structure and Fill valve not only can obtain very compact spatial volume, and the material materials are few, low cost of manufacture.
2. because oil recharging valve core has the through hole that is communicated with its front-end and back-end, filler opening one end of relief valve seat is inserted in the rear stomidium of oil recharging valve core, and between the rear stomidium of relief valve seat and oil recharging valve core, seal ring is housed, the spring be used to the repairing pressure reduction of adjusting is housed between relief valve seat and described oil recharging valve core.This structure is compared with the relief valve with pilot valve; too high pressure oil can directly be pushed the overflow spool open and pressure release from the repairing outlet; do not need to open pilot valve in advance and push again the pressure release of overflow spool open; therefore; the overflow action of this valve is more direct and sensitive than prior art; the pressure regulation reaction is fast, not only can protect preferably pressure system, and can obtain more steady reliably limiting pressure.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of the present invention under the overflow pressure relief state.
Fig. 3 is the structural representation of the present invention under the repairing state.
Embodiment
The invention will be further described below in conjunction with accompanying drawing embodiment:
Screw-in cartridge valve shown in Figure 1 is made of locking nut 1, screw press 2, relief valve seat 3, repairing valve seat 4, overflow spool 5, oil recharging valve core 6, oil compensation pressure setting spring 7, oil pressure relief setting spring 8, Sealing 10, seal ring 12 and seal ring 13.
The rear end of repairing valve seat 4, be that left end among Fig. 1 is clamping part, the middle part of repairing valve seat 4 and front end are the cartridge parts of approximate tube structure, be provided with one section connecting thread in the outside of cartridge part, between clamping part and connecting thread, be provided with for this valve in use by seal ring 11 and the seal groove that is tightly connected that parts are installed.Repairing valve seat 4 is provided with the repairing oil outlet in the side of front end, be provided with the repairing filler opening at front end, be provided with between repairing outlet and repairing import for being connected the seal groove that seals with the installation parts by seal ring 9, repairing chamber and oil suction chamber that parts will be installed by seal ring 9 are isolated.
Oil recharging valve core 6 is large tube structures of the little rear end of front end, front end has a bit of through hole, there is long one section large through hole the rear end, these two through holes are connected the front-end and back-end of oil recharging valve core 6, oil recharging valve core 6 is contained in the endoporus of repairing valve seat 4, and the minimum place cross-section area of described oil recharging valve core 6 through holes is equal to or greater than the cross-section area of the valve seat mouth of described relief valve seat 3.
The structure of the structure of relief valve seat 3 and oil recharging valve core 6 is basic identical, its front end, be that left part among Fig. 1 is clamping part, the middle part of relief valve seat 3 and front portion are the cartridge parts of approximate tube structure, be provided with one section connecting thread in the outside of cartridge part, between clamping part and connecting thread, be provided with seal groove, in the sealing ring recess, be equipped with for the Sealing 12 that is served as by seal ring that is tightly connected with repairing valve seat 4, relief valve seat 3 is provided with the overflow outlet in the side of front end, relief valve seat 3 is provided with overflow inlet at front end, between overflow outlet and overflow inlet, be provided with seal groove, seal ring 10 wherein is housed.The cartridge part of relief valve seat 3 is inserted in the rear port of repairing valve seat 4, and are connected with seal ring by screw thread and are connected with the back-end sealing of repairing valve seat 4, make oil recharging valve core 5 and the 6 coaxial settings of overflow spool, the front end of relief valve seat 3 is inserted in the rear port of oil recharging valve core 6, is provided with the seal ring 10 that is used for separation overflow inlet and overflow outlet that is contained in the seal groove between the rear port of relief valve seat 3 and oil recharging valve core 6.
By screw thread screw press 2 is housed in the rear stomidium of relief valve seat 3, overflow spool 5 is housed in the endoporus of relief valve seat 3, between screw press 2 and the overflow spool 5 oil pressure relief setting spring 8 is housed, overflow spool 5 is on the valve seat mouth that is crimped on relief valve seat 3 under this valve off position.The overflow cracking pressure that rotation screw press 2 can arrange between relief valve seat 3 overflow outlets and the overflow inlet is poor, in the rear end of screw press 2 locking nut 1 is housed, cause the poor change of overflow cracking pressure of adjusting in case screw press 2 becomes flexible, between locking nut 1 and relief valve seat 3, seal ring 13 is housed in case the seepage of draining.
The oil compensation pressure setting spring 7 of repairing cracking pressure between the repairing outlet that the repairing valve seat 4 of adjusting is housed between relief valve seat 3 and the oil recharging valve core 6 and repairing import.This valve is not when working, and oil recharging valve core 6 is crimped on the valve seat mouth of repairing valve seat 4.
Shown in Figure 2 is the overflow working state of this screw-in cartridge valve when overload.When the hydraulic parts pressure that this screw-in cartridge valve is connected when hydraulic system is higher than the overload setting pressure, the through hole of hydraulic oil by oil recharging valve core 6 acts on the conical surface that overflow spool 5 is positioned at valve seat mouth front side, and the active force that overcomes oil pressure relief setting spring 8 makes to the back-end mobile opening of overflow spool 5, hydraulic oil enters from the overflow inlet of relief valve seat 3, by overflow spool 5, flow out from the overflow outlet of relief valve seat 3, to realize the overload pressure release; Under the state that overflow spool 5 is opened, oil recharging valve core 6 is in closed condition always.
The hydraulic fluid pressure of the hydraulic parts that connects when this screw-in cartridge valve falls in to the overload valve setting pressure time, the active force that oil pressure acts on overflow spool 5 is during less than the active force of 8 pairs of overflow spools 5 of oil pressure relief setting spring, and oil pressure relief setting spring 8 will promote the motion of overflow spool 5 forward end and be crimped on the valve seat mouth closing outflow valve and get back to state shown in Figure 1.
Fig. 3 is this screw-in cartridge valve working state when repairing.When the pressure of hydraulic oil is lower than the return oil pressure of setting, the active force that the repairing outlet of repairing valve seat 4 and the pressure difference between the repairing import will overcome oil compensation pressure setting spring 7 makes promotion oil recharging valve core 6 mobile opening rearward, carry out reverse repairing to the hydraulic parts that is connected with this valve, in oil recharging valve core 6 work, overflow spool 5 is in closed condition always.
When the pressure of hydraulic oil is higher than the return oil pressure of setting, the repairing outlet of repairing valve seat 4 and the pressure difference between the repairing import are not enough to overcome the active force of 7 pairs of oil recharging valve cores 6 of oil compensation pressure setting spring, oil compensation pressure setting spring 7 promotion oil recharging valve cores 6 forwards move to and are crimped on the valve seat mouth, close the valve Fill valve and get back to state shown in Figure 1.
Claims (2)
1. screw-in cartridge valve, include the oil recharging valve core (6) that is contained in the repairing valve seat (4), and be contained in overflow spool (5) in the relief valve seat (3), screw press (2) and be contained in described overflow spool (5) and described screw press (2) between oil pressure relief setting spring (8), described repairing valve seat (4) has the clamping part that is positioned at the rear end and the side that is positioned at front end and is provided with the cartridge part that benefit there is not outlet, this cartridge part is provided with seal groove in its repairing import between the repairing outlet, described oil recharging valve core (6) has the through hole that is communicated with its front-end and back-end; Described relief valve seat (3) has the cartridge part that the clamping part that is positioned at the rear end and the side that is positioned at front end are provided with the overflow outlet; The cartridge part of described relief valve seat (3) is threaded connection in the rear stomidium of described repairing valve seat (4), the front end that described relief valve seat (3) is provided with overflow inlet is inserted in the rear stomidium of described oil recharging valve core (6), between described relief valve seat (3) and described repairing valve seat (4), Sealing (12) is housed, the seal ring (10) of the described overflow outlet of isolation and overflow inlet is housed between the rear stomidium of the front end of described relief valve seat (3) and described oil recharging valve core (6), between described relief valve seat (3) and described oil recharging valve core (6) oil compensation pressure setting spring (7) is housed, it is characterized in that: the minimum place cross-section area of described oil recharging valve core (6) through hole is equal to or greater than the cross-section area of the valve seat mouth of described relief valve seat (3).
2. screw-in cartridge valve according to claim 1 is characterized in that: described oil recharging valve core (6) and the coaxial setting of described overflow spool (5); Described screw press has been threaded connection pressure regulation locking nut (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210352137.4A CN102878136B (en) | 2012-09-21 | 2012-09-21 | Screw-in cartridge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210352137.4A CN102878136B (en) | 2012-09-21 | 2012-09-21 | Screw-in cartridge valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102878136A true CN102878136A (en) | 2013-01-16 |
| CN102878136B CN102878136B (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210352137.4A Active CN102878136B (en) | 2012-09-21 | 2012-09-21 | Screw-in cartridge valve |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353002A (en) * | 2013-06-28 | 2013-10-16 | 平原机器厂（新乡） | Overflow safety valve of aviation hydraulic system |
| CN103807244A (en) * | 2014-01-22 | 2014-05-21 | 马鞍山市裕华机械制造有限公司 | Plug-in mounting type oil supplementing valve controlled by ejector rod |
| CN104074820A (en) * | 2014-06-12 | 2014-10-01 | 苏州固基电子科技有限公司 | Threaded inserting valve |
| CN105065359A (en) * | 2015-08-13 | 2015-11-18 | 山东常林机械集团股份有限公司 | Safety oil supplementing valve for multi-path valve |
| CN105626617A (en) * | 2016-03-23 | 2016-06-01 | 合肥长源液压股份有限公司 | Pressure control device in static hydraulic system |
| CN106224607A (en) * | 2016-09-26 | 2016-12-14 | 东洋重工机（大连）有限公司 | A kind of screw thread high pressure inserted valve |
| CN108266414A (en) * | 2018-01-15 | 2018-07-10 | 邵立坤 | A kind of plug-in overload oil compensating valve |
| CN108953269A (en) * | 2018-08-24 | 2018-12-07 | 东莞海特帕沃液压科技有限公司 | A kind of inserted valve |
| CN111271486A (en) * | 2020-03-01 | 2020-06-12 | 东莞海特帕沃液压科技有限公司 | Pressure reducing valve |
| CN111963739A (en) * | 2020-08-14 | 2020-11-20 | 上海恒温控制器厂有限公司 | Electronic flow regulating valve and regulating method |
| CN113217497A (en) * | 2021-05-24 | 2021-08-06 | 西安航天远征流体控制股份有限公司 | Plug-in type energy storage overflow valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3735537A1 (en) * | 1987-10-21 | 1989-05-03 | Ecker Gmbh Maschbau | Hydraulic valve |
| CN101576100A (en) * | 2008-12-18 | 2009-11-11 | 上海电气液压气动有限公司 | Equilibrium valve capable of supplementing oil |
| DE102008044800A1 (en) * | 2008-08-28 | 2010-03-04 | Robert Bosch Gmbh | Pilot-controlled pressure control valve, particularly pressure shut-off valve, pressure relief valve or pressure reducing valve, comprises master valve with master piston and pilot valve, where master piston is pre-stressed by spring |
| CN201651648U (en) * | 2010-02-10 | 2010-11-24 | 武汉科技大学 | Corrugated expansion joint |
| CN102444637A (en) * | 2011-09-27 | 2012-05-09 | 广西柳工机械股份有限公司 | Plug-in overflow valve |
-
2012
- 2012-09-21 CN CN201210352137.4A patent/CN102878136B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3735537A1 (en) * | 1987-10-21 | 1989-05-03 | Ecker Gmbh Maschbau | Hydraulic valve |
| DE102008044800A1 (en) * | 2008-08-28 | 2010-03-04 | Robert Bosch Gmbh | Pilot-controlled pressure control valve, particularly pressure shut-off valve, pressure relief valve or pressure reducing valve, comprises master valve with master piston and pilot valve, where master piston is pre-stressed by spring |
| CN101576100A (en) * | 2008-12-18 | 2009-11-11 | 上海电气液压气动有限公司 | Equilibrium valve capable of supplementing oil |
| CN201651648U (en) * | 2010-02-10 | 2010-11-24 | 武汉科技大学 | Corrugated expansion joint |
| CN102444637A (en) * | 2011-09-27 | 2012-05-09 | 广西柳工机械股份有限公司 | Plug-in overflow valve |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353002A (en) * | 2013-06-28 | 2013-10-16 | 平原机器厂（新乡） | Overflow safety valve of aviation hydraulic system |
| CN103353002B (en) * | 2013-06-28 | 2015-07-01 | 平原机器厂（新乡） | Overflow safety valve of aviation hydraulic system |
| CN103807244A (en) * | 2014-01-22 | 2014-05-21 | 马鞍山市裕华机械制造有限公司 | Plug-in mounting type oil supplementing valve controlled by ejector rod |
| CN103807244B (en) * | 2014-01-22 | 2015-10-28 | 马鞍山市裕华机械制造有限公司 | Push rod controls plug-in type Fill valve |
| CN104074820A (en) * | 2014-06-12 | 2014-10-01 | 苏州固基电子科技有限公司 | Threaded inserting valve |
| CN105065359A (en) * | 2015-08-13 | 2015-11-18 | 山东常林机械集团股份有限公司 | Safety oil supplementing valve for multi-path valve |
| CN105626617B (en) * | 2016-03-23 | 2017-08-29 | 合肥长源液压股份有限公司 | Pressure control device in hydrostatic pressure system |
| CN105626617A (en) * | 2016-03-23 | 2016-06-01 | 合肥长源液压股份有限公司 | Pressure control device in static hydraulic system |
| CN106224607A (en) * | 2016-09-26 | 2016-12-14 | 东洋重工机（大连）有限公司 | A kind of screw thread high pressure inserted valve |
| CN108266414A (en) * | 2018-01-15 | 2018-07-10 | 邵立坤 | A kind of plug-in overload oil compensating valve |
| CN108953269A (en) * | 2018-08-24 | 2018-12-07 | 东莞海特帕沃液压科技有限公司 | A kind of inserted valve |
| CN111271486A (en) * | 2020-03-01 | 2020-06-12 | 东莞海特帕沃液压科技有限公司 | Pressure reducing valve |
| CN111271486B (en) * | 2020-03-01 | 2023-04-07 | 山东东阀制冷科技有限公司 | Pressure reducing valve |
| CN111963739A (en) * | 2020-08-14 | 2020-11-20 | 上海恒温控制器厂有限公司 | Electronic flow regulating valve and regulating method |
| CN113217497A (en) * | 2021-05-24 | 2021-08-06 | 西安航天远征流体控制股份有限公司 | Plug-in type energy storage overflow valve |
| CN113217497B (en) * | 2021-05-24 | 2023-11-21 | 西安航天远征流体控制股份有限公司 | Plug-in type energy storage overflow valve |
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| Publication number | Publication date |
|---|---|
| CN102878136B (en) | 2015-08-12 |
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