CN203258127U - Direct-acting overflow valve - Google Patents
Direct-acting overflow valve Download PDFInfo
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- CN203258127U CN203258127U CN 201320238501 CN201320238501U CN203258127U CN 203258127 U CN203258127 U CN 203258127U CN 201320238501 CN201320238501 CN 201320238501 CN 201320238501 U CN201320238501 U CN 201320238501U CN 203258127 U CN203258127 U CN 203258127U
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Abstract
The utility model relates to a direct-acting overflow valve which comprises a valve sleeve, a valve base, a cone valve element, a pressure spring, a pressure regulating device and first sealing elements. A through hole penetrating the two opposite end faces of the valve sleeve is formed in the valve sleeve, and the through hole on the end face of one end of the valve sleeve serves as an oil inlet; the pressure regulating device is arranged at the other end of the valve sleeve; the valve base is arranged in the through hole and is close to the oil inlet; the cone valve element is arranged in the through hole, and the two ends of the cone valve element are matched with the valve base and the pressure regulating device respectively; the pressure spring is arranged in the through hole and arranged on the cone valve element in a sleeved mode, and the two ends of the pressure spring butt against a limiting surface of the cone valve element and the pressure regulating device respectively; the position, corresponding to the valve base, of the outer surface of the valve sleeve is provided with a first sealing groove in an annular mode, the outer surface of the valve sleeve is further provided with an external thread section, the outer surface, between the external thread section and the pressure regulating device, of the valve sleeve is further provided with a second sealing groove, and the position, between the valve base and the external thread section, of the valve sleeve is provided with an oil return port communicated with the through hole; and the first sealing elements are arranged in the first sealing groove and the second sealing groove respectively.
Description
Technical field
The utility model relates to the direct-acting overflow valve of a kind of pressure control usefulness, particularly relates to a kind of reliable performance of pressure regulation and the pressure limiting for the multi-way valve oil circuit control, connects the direct-acting overflow valve of compact new structure.
Background technique
Direct-acting overflow valve is the element for pressure regulation and the pressure limiting of HYDRAULIC CONTROL SYSTEM.For the multi-way valve oil circuit control, in pressure control, not only need the direct-acting overflow valve reliable performance, but also require to be used in the direct-acting overflow valve compact structure in the multi-way valve.The most boundary dimension of existing direct-acting overflow valve is huger in the market, be not suitable for being used in the multi-way valve, or formed by assembly, can not form independently functional unit, bring very large difficulty for the batch production of multi-way valve, even cause the multi-way valve unstable properties.Therefore, be necessary to develop the pressure controlled direct-acting overflow valve that a kind of compact structure, technique simply are applicable to the multi-way valve oil circuit control.
In view of this, the design people is based on being engaged in for many years abundant practical experience and professional knowledge of this type of product specification manufacturing, and cooperates the utilization of scientific principle, and actively research and innovation in addition in the hope of founding a kind of direct-acting overflow valve of new structure, makes it have more practicability.Through constantly research, design, and through after repeatedly studying sample and improvement, finally create the utility model that has practical value.
Summary of the invention
The purpose of this utility model is, overcome the defective that prior art exists, and provide a kind of direct-acting overflow valve of new structure, to be it be used to multi-way valve with integral plugged formula structure as functional unit independently to technical problem to be solved, and compact structure is functional, reduced difficulty of processing, improve reliability, met the whole requirement of multi-way valve, be very suitable for practicality.
The purpose of this utility model and solve its technical problem and realize by the following technical solutions.According to a kind of direct-acting overflow valve that the utility model proposes, be used for multi-way valve, comprising: valve pocket, valve seat, poppet valve core, pressure spring, regulator and the first Sealing; Wherein, be provided with the through hole that runs through two relative end faces of described valve pocket in the described valve pocket, described through hole forms filler opening at the end face of described valve pocket one end; Described regulator is arranged at the other end of described valve pocket; Described valve seat is arranged in the described through hole, and near described filler opening; Described poppet valve core is arranged in the described through hole, and its two ends cooperate with described valve seat and described regulator respectively; Described pressure spring is arranged in the described through hole, and is set on the described poppet valve core, and its two ends are resisted against respectively on the confined planes and described regulator of described poppet valve core; Corresponding described valve seat place is equipped with the first seal groove on the outer surface of described valve pocket, on the outer surface of described valve pocket, also be provided with external thread section, on the outer surface of the described valve pocket between described external thread section and the described regulator, also be equipped with the second seal groove, be provided with the return opening that is communicated with described through hole at described valve seat with described valve pocket between the described external thread section; In described the first seal groove and described the second seal groove, be respectively equipped with described the first Sealing.
The purpose of this utility model and solve its technical problem and also can be applied to the following technical measures to achieve further.
Aforesaid direct-acting overflow valve, wherein said through hole is provided with the hole circlip groove, is provided with circlip for hole in described hole in circlip groove, and described valve seat is that the mode with interference fit is arranged in the described through hole between described circlip for hole and the described return opening.
Aforesaid direct-acting overflow valve, wherein said regulator comprises: adjustable lever, sealing nut, locking nut and the second Sealing; One end of wherein said adjustable lever is arranged in the described through hole, and an end of described poppet valve core is to cooperate with this end of described adjustable lever, and an end of described pressure spring is to be resisted against on the end face of this end of described adjustable lever; The other end of described adjustable lever stretches out outside the described valve pocket; Outer surface at described adjustable lever is provided with outside thread, and described sealing nut and described locking nut are to cooperate with described outside thread respectively to be set in turn on the described adjustable lever; Wherein said sealing nut is resisted against on the end face of the described valve pocket the other end, described locking nut is resisted against on the described sealing nut, and the surface of the described sealing nut that leans at the end face with the described valve pocket the other end is provided with the 3rd seal groove, surface at the described locking nut that leans with described sealing nut is provided with the 4th seal groove, is respectively equipped with described the second Sealing in described the 3rd seal groove and described the 4th seal groove.
Aforesaid direct-acting overflow valve, wherein said through hole is provided with internal thread, and an end of described adjustable lever is to be arranged in the described through hole with described outside thread and described screw-internal thread fit; The end of described adjustable lever in described through hole also is provided with blind hole, and an end of described poppet valve core is to stretch in the described blind hole to cooperate with described blind hole.
Aforesaid direct-acting overflow valve, wherein said the second Sealing comprise the 2nd O RunddichtringO and the 3rd O RunddichtringO, and described the 2nd O RunddichtringO is to be arranged in described the 3rd seal groove, and described the 3rd O RunddichtringO is to be arranged in described the 4th seal groove.
Aforesaid direct-acting overflow valve, wherein said valve seat is provided with the valve seat orifice that is communicated with described filler opening and described through hole, the conical surface at the described poppet valve core the other end is provided with the oil sealing crest line, described poppet valve core stretches in the described valve seat orifice with an end that is provided with the described conical surface, and cooperates oil sealing with described oil sealing crest line with the wedge angle of described valve seat orifice.
Aforesaid direct-acting overflow valve, wherein said the first Sealing comprises an O RunddichtringO, a described O RunddichtringO is to be arranged in described the first seal groove.
The utility model compared with prior art has obvious advantage and beneficial effect.By technique scheme, a kind of direct-acting overflow valve of the utility model has following advantages and beneficial effect at least: direct-acting overflow valve of the present utility model is to adopt integral plugged formula structural design, is used to multi-way valve as functional unit independently.Its compact structure, functional, can reduce the difficulty of processing of multi-way valve, improve the work efficiency of the whole valve of multi-way valve, and can test to guarantee separately the overall performance of multi-way valve to its performance, avoid the whole valve fault that breaks down and cause because of the direct-acting overflow valve in the multi-way valve, reduce the fault point, improve the whole Operating stability of valve of multi-way valve and reliability, met the whole requirement of multi-way valve.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above and other purpose of the present utility model, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.
Description of drawings
Fig. 1 is the sectional view of the direct-acting overflow valve of the utility model preferred embodiment.
Fig. 2 is the schematic representation of valve pocket of the direct-acting overflow valve of the utility model preferred embodiment.
Fig. 3 is the schematic representation of valve seat of the direct-acting overflow valve of the utility model preferred embodiment.
Fig. 4 is the schematic representation of poppet valve core of the direct-acting overflow valve of the utility model preferred embodiment.
Fig. 5 is the schematic representation of adjustable lever of the direct-acting overflow valve of the utility model preferred embodiment.
Fig. 6 is the schematic representation of sealing nut of the direct-acting overflow valve of the utility model preferred embodiment.
Fig. 7 is the schematic representation of locking nut of the direct-acting overflow valve of the utility model preferred embodiment.
100: valve pocket 110: through hole
111: hole circlip groove 112: right lateral surface
113: cylndrical surface 114: internal thread
122: the second seal grooves of 121: the first seal grooves
130: external thread section 140: end face
200: valve seat 210: right side
220: cylndrical surface 230: valve seat orifice
231: wedge angle 300: poppet valve core
310: confined planes 320: cylndrical surface
330: conical surface envelope 331: oily crest line
400: pressure spring 500: regulator
510: adjustable lever 511: end face
512: outside thread 513: blind hole
520: 521: the three seal grooves of sealing nut
522: end face 523: end face
530: 531: the four seal grooves of locking nut
532: end face 541,542: the second Sealings
601,602: the first Sealings 700: circlip for hole
P: filler opening T: return opening
Embodiment
Be to reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the utility model, below in conjunction with accompanying drawing and preferred embodiment, to according to its embodiment of a kind of direct-acting overflow valve, structure, feature and the effect thereof that the utility model proposes, be described in detail as follows.
Relevant aforementioned and other technology contents of the present utility model, Characteristic can be known to present in the following detailed description that cooperates with reference to graphic preferred embodiment.Explanation by embodiment, should be to reach technological means and the effect that predetermined purpose takes to obtain one more deeply and concrete understanding to the utility model, yet appended graphic only provide with reference to the usefulness of explanation, the utility model is limited.
See also Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Figure 6 and Figure 7, Fig. 1 is the sectional view of the direct-acting overflow valve of the utility model preferred embodiment.Fig. 2 is the schematic representation of valve pocket of the direct-acting overflow valve of the utility model preferred embodiment.Fig. 3 is the schematic representation of valve seat of the direct-acting overflow valve of the utility model preferred embodiment.Fig. 4 is the schematic representation of poppet valve core of the direct-acting overflow valve of the utility model preferred embodiment.Fig. 5 is the schematic representation of adjustable lever of the direct-acting overflow valve of the utility model preferred embodiment.Fig. 6 is the schematic representation of sealing nut of the direct-acting overflow valve of the utility model preferred embodiment.Fig. 7 is the schematic representation of locking nut of the direct-acting overflow valve of the utility model preferred embodiment.
The direct-acting overflow valve of the utility model preferred embodiment can be used as independently that functional unit is used to multi-way valve, and it mainly is comprised of valve pocket 100, valve seat 200, poppet valve core 300, pressure spring 400, regulator 500 and the first Sealing 601,602.Wherein, be provided with the through hole 110 that runs through two relative end faces of valve pocket 100 in the inside of valve pocket 100, through hole 110 forms oil inlet P at the end face of valve pocket 100 1 ends.Regulator 500 is arranged at the other end of valve pocket 100.Valve seat 200 is arranged in the through hole 110, and near oil inlet P.Poppet valve core 300 is arranged in the through hole 110, and its two ends cooperate with valve seat 200 and regulator 500 respectively.Pressure spring 400 is arranged in the through hole 110, and is set on the poppet valve core 300, and its two ends are resisted against respectively on the confined planes 310 and regulator 500 of poppet valve core 300.Corresponding valve seat 200 places are equipped with the first seal groove 121 on the outer surface of valve pocket 100, on the outer surface of valve pocket 100, also be provided with external thread section 130, on the outer surface of the valve pocket 100 between external thread section 130 and the regulator 500, also be equipped with the second seal groove 122, be provided with the oil return inlet T that is communicated with through hole 110 at valve seat 200 with valve pocket 100 between the external thread section 130.In the first seal groove 121 and the second seal groove 122, be respectively equipped with the first Sealing 601 and 602.
Through hole 110 of the present utility model can be provided with the hole with circlip groove 111, is provided with circlip for hole 700 in the hole in circlip groove 111.Valve seat 200 can be that the mode with interference fit is arranged in the through hole 110 between circlip for hole 700 and the oil return inlet T.As shown in Figures 2 and 3, circlip for hole 700 is to be adjacent to the right lateral surface 112 that circlip groove 111 is used in the hole with its right lateral surface, so that the right side 210 of valve seat 200 is adjacent to the left-hand face of circlip for hole 700, locate the right side 210 of valve seat 200, come off in the through hole 110 of valve pocket 100 to prevent valve seat 200.Valve seat 200 is that the cylndrical surface 113 by its cylndrical surface 220 and valve pocket 100 is pressed in the through hole 110 of valve pocket 100 in the mode of interference fit.
Through hole 110 of the present utility model can be provided with internal thread 114, one end of adjustable lever 510 can be to be equipped with in through hole 110 with the internal thread 114 of outside thread 512 with through hole 110, the end of adjustable lever 510 in through hole 110 also can be provided with blind hole 513, and an end of poppet valve core 300 can stretch in the blind hole 513 and cooperate with blind hole 513.Such as Fig. 4 and shown in Figure 5, poppet valve core 300 is to cooperate with blind hole 513 with its cylndrical surface 320, and adjustable lever 510 is the end face formation spring pre-pressing force with end face 511 compaction pressure springs 400 1 ends.
The first Sealing of the present utility model comprises O RunddichtringO and a rectangular seal, and wherein an O RunddichtringO is arranged in the first seal groove 121, and rectangular seal is arranged in the second seal groove 122.The second Sealing of the present utility model comprises the 2nd O RunddichtringO and the 3rd O RunddichtringO, and wherein the 2nd O RunddichtringO is to be arranged in the 3rd seal groove 521, and the 3rd O RunddichtringO is to be arranged in the 4th seal groove 522.
The cracking pressure of Novel direct-acting relief valve of the present utility model is set with the decrement of end face 511 compression pressure springs 400 by the adjustable lever 510 of regulator 500.When the pressure at oil inlet P place does not reach setting value, pressure spring 400 compresses the confined planes 310 of poppet valve core 300, oil sealing crest line 331 on the conical surface 330 of poppet valve core 300 is cooperated with the wedge angle 231 of valve seat 200 realize oil sealing, thereby oil inlet P and oil return inlet T are separated with minimum leakage rate; When the pressure at oil inlet P place reached setting value, poppet valve core 300 overcame spring force and moves to the direction of regulator 500, the wedge angle 231 of oil sealing crest line 331 and valve seat 200 on the conical surface 330 of poppet valve core 300 is broken away from, thereby oil inlet P is communicated with oil return inlet T.Keep simultaneously the pressure at oil inlet P place to maintain setting value.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet be not to limit the utility model, any those skilled in the art, within not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solutions of the utility model content, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (7)
1. a direct-acting overflow valve is characterized in that, it is used for multi-way valve, comprising: valve pocket, valve seat, poppet valve core, pressure spring, regulator and the first Sealing; Wherein, be provided with the through hole that runs through two relative end faces of described valve pocket in the described valve pocket, described through hole forms filler opening at the end face of described valve pocket one end; Described regulator is arranged at the other end of described valve pocket; Described valve seat is arranged in the described through hole, and near described filler opening; Described poppet valve core is arranged in the described through hole, and its two ends cooperate with described valve seat and described regulator respectively; Described pressure spring is arranged in the described through hole, and is set on the described poppet valve core, and its two ends are resisted against respectively on the confined planes and described regulator of described poppet valve core; Corresponding described valve seat place is equipped with the first seal groove on the outer surface of described valve pocket, on the outer surface of described valve pocket, also be provided with external thread section, on the outer surface of the described valve pocket between described external thread section and the described regulator, also be equipped with the second seal groove, be provided with the return opening that is communicated with described through hole at described valve seat with described valve pocket between the described external thread section; In described the first seal groove and described the second seal groove, be respectively equipped with described the first Sealing.
2. direct-acting overflow valve according to claim 1, it is characterized in that wherein said through hole is provided with the hole circlip groove, be provided with circlip for hole in described hole in circlip groove, described valve seat is that the mode with interference fit is arranged in the described through hole between described circlip for hole and the described return opening.
3. direct-acting overflow valve according to claim 1 is characterized in that wherein said regulator comprises: adjustable lever, sealing nut, locking nut and the second Sealing; One end of wherein said adjustable lever is arranged in the described through hole, and an end of described poppet valve core is to cooperate with this end of described adjustable lever, and an end of described pressure spring is to be resisted against on the end face of this end of described adjustable lever; The other end of described adjustable lever stretches out outside the described valve pocket; Outer surface at described adjustable lever is provided with outside thread, and described sealing nut and described locking nut are to cooperate with described outside thread respectively to be set in turn on the described adjustable lever; Wherein said sealing nut is resisted against on the end face of the described valve pocket the other end, described locking nut is resisted against on the described sealing nut, and the surface of the described sealing nut that leans at the end face with the described valve pocket the other end is provided with the 3rd seal groove, surface at the described locking nut that leans with described sealing nut is provided with the 4th seal groove, is respectively equipped with described the second Sealing in described the 3rd seal groove and described the 4th seal groove.
4. direct-acting overflow valve according to claim 3 is characterized in that wherein said through hole is provided with internal thread, and an end of described adjustable lever is to be arranged in the described through hole with described outside thread and described screw-internal thread fit; The end of described adjustable lever in described through hole also is provided with blind hole, and an end of described poppet valve core is to stretch in the described blind hole to cooperate with described blind hole.
5. direct-acting overflow valve according to claim 3, it is characterized in that wherein said the second Sealing comprises the 2nd O RunddichtringO and the 3rd O RunddichtringO, described the 2nd O RunddichtringO is to be arranged in described the 3rd seal groove, and described the 3rd O RunddichtringO is to be arranged in described the 4th seal groove.
6. direct-acting overflow valve according to claim 1, it is characterized in that wherein said valve seat is provided with the valve seat orifice that is communicated with described filler opening and described through hole, the conical surface at the described poppet valve core the other end is provided with the oil sealing crest line, described poppet valve core stretches in the described valve seat orifice with the end that it is provided with the described conical surface, and cooperates oil sealing with described oil sealing crest line with the wedge angle of described valve seat orifice.
7. direct-acting overflow valve according to claim 1, it is characterized in that wherein said the first Sealing comprises O RunddichtringO and a rectangular seal, a described O RunddichtringO is to be arranged in described the first seal groove, and described rectangular seal is arranged in described the second seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320238501 CN203258127U (en) | 2013-05-06 | 2013-05-06 | Direct-acting overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320238501 CN203258127U (en) | 2013-05-06 | 2013-05-06 | Direct-acting overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203258127U true CN203258127U (en) | 2013-10-30 |
Family
ID=49470690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320238501 Expired - Lifetime CN203258127U (en) | 2013-05-06 | 2013-05-06 | Direct-acting overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203258127U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742662A (en) * | 2014-01-24 | 2014-04-23 | 中国船舶重工集团公司第七�三研究所 | Slide valve assembly of direct-acting overflow valve |
| CN103775438A (en) * | 2013-12-31 | 2014-05-07 | 江苏南铸科技股份有限公司 | Overload protective valve and overload valve comprising same |
| CN104141813A (en) * | 2013-05-06 | 2014-11-12 | 北京华德液压工业集团有限责任公司 | Direct-acting overflow valve |
| CN104196797A (en) * | 2014-08-19 | 2014-12-10 | 合肥长源液压股份有限公司 | Integral multiway valve with integral hydraulic locks and fouling resistant plug-in mounting overflow valve |
-
2013
- 2013-05-06 CN CN 201320238501 patent/CN203258127U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141813A (en) * | 2013-05-06 | 2014-11-12 | 北京华德液压工业集团有限责任公司 | Direct-acting overflow valve |
| CN104141813B (en) * | 2013-05-06 | 2017-02-15 | 北京华德液压工业集团有限责任公司 | Direct-acting overflow valve |
| CN103775438A (en) * | 2013-12-31 | 2014-05-07 | 江苏南铸科技股份有限公司 | Overload protective valve and overload valve comprising same |
| CN103742662A (en) * | 2014-01-24 | 2014-04-23 | 中国船舶重工集团公司第七�三研究所 | Slide valve assembly of direct-acting overflow valve |
| CN104196797A (en) * | 2014-08-19 | 2014-12-10 | 合肥长源液压股份有限公司 | Integral multiway valve with integral hydraulic locks and fouling resistant plug-in mounting overflow valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |