CN103438043B - Pressure unit that can be parked arbitrarily - Google Patents
Pressure unit that can be parked arbitrarily Download PDFInfo
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- CN103438043B CN103438043B CN201310389939.7A CN201310389939A CN103438043B CN 103438043 B CN103438043 B CN 103438043B CN 201310389939 A CN201310389939 A CN 201310389939A CN 103438043 B CN103438043 B CN 103438043B
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- parked
- valve
- pressure
- pressure chamber
- piston
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- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Fluid-Driven Valves (AREA)
Abstract
The present invention relates to elastic compression devices field, especially a kind of can be parked arbitrarily pressure unit.Technical problem to be solved is to provide a kind of pressure unit that can be parked at an arbitrary position.The technological scheme adopted is: pressure unit that can be parked, comprise pressure tube and be socketed on the piston in pressure tube, pressure tube inner chamber is divided into media cavity and pressure chamber by the piston head of described piston, also comprise one-way valve, the parked control valve be connected in series with flow control valve by the self closing stop valve that transfinites, the self closing stop valve that transfinites of parked control valve communicates with media cavity and the circulating direction of the self closing stop valve that transfinites is media cavity flows to pressure chamber, the flow control valve of parked control valve communicates with pressure chamber, the two ends of one-way valve communicate with media cavity and pressure chamber respectively and the circulating direction of one-way valve is pressure chamber flows to media cavity, piston arbitrary position repeatedly parked can be realized.The present invention can be applied in the equipment such as machinery, electronics needs pressure unit to realize arbitrarily parked occasion.
Description
Technical field
The present invention relates to elastic compression devices field, especially a kind of can be parked arbitrarily pressure unit.
Background technique
In the products such as compressive resilience strut members, damper, in order to make compressive resilience element energy in movement travel parked, and keep parked in fixed position, the technology of current employing arranges special control switch to control working medium, described control switch has manual handle, the equipment such as electronic switch.
Control parked method for adopted special control switch, once fault has appearred in control switch, namely the piston in compressive resilience element can block, and both cannot continue to stretch, and also cannot compress.In concrete making, owing to needing the manual handle adopted outside compressive resilience element for controlling, the equipment such as electronic switch, therefore, the cost producing such product is also higher, thus limits the marketing of Related product.
Summary of the invention
Technical problem to be solved by this invention is to provide the pressure unit that a kind of piston can be parked at an arbitrary position.
The technical solution adopted for the present invention to solve the technical problems is: pressure unit that can be parked arbitrarily, comprise pressure tube and be socketed on the piston in pressure tube, the inner chamber of pressure tube is divided into media cavity and pressure chamber by the piston head of described piston, also comprise one-way valve and the self closing stop valve that transfinites, the transfinite two ends of self closing stop valve communicate with media cavity and pressure chamber and the circulating direction of the self closing stop valve that transfinites is media cavity flows to pressure chamber respectively, and the two ends of one-way valve communicate with media cavity and pressure chamber respectively and the circulating direction of one-way valve is pressure chamber flows to media cavity.
Further: comprise flow control valve, described flow control valve is connected in series with the self closing stop valve that transfinites and forms parked control valve, and the two ends of parked control valve communicate with media cavity and pressure chamber respectively.
Further: comprise and transfinite from valve opening, described in transfinite and be parallel to flow control valve two ends from valve opening, open that to transfinite from the circulating direction of valve opening be that media cavity flows to pressure chamber.
Further: described one-way valve and the self closing stop valve that transfinites all are arranged in piston head.
Further: comprise the Flexible Connector be arranged in media cavity, described Flexible Connector is socketed on the piston rod of piston.
Further: Flexible Connector is spring.
Further: comprise locking one-way valve and the parked control valve of locking, described locking one-way valve is connected in series with parked control valve and the circulating direction of locking one-way valve is media cavity flows to pressure chamber, and the parked control valve of described locking is connected in series with one-way valve and the circulating direction of the parked control valve of locking is that pressure chamber flows to media cavity.
The invention has the beneficial effects as follows: when applying to push the external force in pressure chamber direction to by media cavity to the piston in pressure tube, the medium in pressure chamber flows to media cavity by one-way valve and the self closing stop valve that transfinites.After the external world no longer applies external force to piston, the pressure of medium to piston due to pressure chamber side is greater than the pressure of medium to piston of media cavity side, therefore piston can move to media cavity side, and the medium now in media cavity only has and flows to pressure chamber by the self closing stop valve that transfinites.Medium by transfinite self closing stop valve time, can due to the metering function of the self closing stop valve that transfinites, medium can flow through the self closing stop valve that transfinites comparatively slowly, therefore the travelling speed of piston is comparatively slow, plays speed limit effect.In piston slowly moving process, once again give piston the external force towards piston movement direction suddenly, uprush due to the medium amount flowing through the self closing stop valve that transfinites and reach the closedown limit of the self closing stop valve that transfinites, namely the self closing stop valve that transfinites can cut out at once.So far, medium both cannot flow to pressure chamber by one-way valve, also cannot flow to pressure chamber by the self closing stop valve that transfinites.Therefore the parked of pressure unit can be realized.If desired pressure unit is allowed again to recover stroke motion, the external force that before only need giving one, piston and piston, the direction of movement is reverse.Under this External Force Acting, due to medium reverse flow, the buttoned-up self closing stop valve that transfinites oppositely backs down from the outflow opening of the self closing stop valve that transfinites by the pressure that medium produces, the unlatching again of self closing stop valve thus realization is transfinited.After described reverse external force disappears, medium can be flow in pressure chamber by the self closing stop valve that transfinites again, and realizes the stretching, extension again of pressure unit.Above parked can be repeated multiple times, and can realize parked at an arbitrary position.The present invention can be applied in the equipment such as machinery, electronics needs pressure unit to realize arbitrarily parked occasion.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is that increase of the present invention is transfinited the schematic diagram after valve opening.
Fig. 3 is the schematic diagram after the present invention increases Flexible Connector.
Fig. 4 is the schematic diagram after the present invention increases locking one-way valve and the parked control valve of locking.
Be labeled as in figure: pressure tube 1, media cavity 11, pressure chamber 12, piston 2, piston head 21, piston head bottom surface 211, piston head end face 212, piston rod 22, one-way valve 3, parked control valve 4, the self closing stop valve 41 that transfinites, flow control valve 42, Flexible Connector 5, to transfinite from valve opening 6, locking one-way valve 7, the parked control valve 8 of locking.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4 can be parked arbitrarily pressure unit, the piston 2 comprising pressure tube 1 and be socketed in pressure tube 1, the inner chamber of pressure tube 1 is divided into media cavity 11 and pressure chamber 12 by the piston head 21 of described piston 2, it is characterized in that: comprise one-way valve 3 and the self closing stop valve 41 that transfinites, the transfinite two ends of self closing stop valve 41 communicate with media cavity 11 and pressure chamber 12 and the circulating direction of the self closing stop valve 41 that transfinites is that media cavity 11 flows to pressure chamber 12 respectively, the two ends of one-way valve 3 communicate with media cavity 11 and pressure chamber 12 respectively and the circulating direction of one-way valve 3 is pressure chamber 12 flows to media cavity 11.
Present invention utilizes one-way valve 3 and transfinite coordinating between self closing stop valve 41, finally realizing piston head 21 can be arbitrarily parked at an arbitrary position.Concrete process is: when applying to push the external force in pressure chamber 12 direction to by media cavity 11 to the piston 2 in pressure tube 1, and the medium in pressure chamber 12 flows to media cavity 11 by one-way valve 3 and the self closing stop valve 41 that transfinites.After the external world no longer applies external force to piston 2, the pressure of medium to piston 2 due to pressure chamber 12 side is greater than the medium of media cavity 11 side to the pressure of piston 2, therefore piston 2 can move to media cavity 11 side, and the medium now in media cavity 11 only has and flows to pressure chamber 12 by the self closing stop valve 41 that transfinites.Medium by transfinite self closing stop valve 41 time, can due to the metering function of the self closing stop valve 41 that transfinites, medium can flow through the self closing stop valve 41 that transfinites comparatively slowly, therefore the travelling speed of piston 2 is slower.In piston 2 slowly moving process, once again give piston 2 one external force towards piston 2 movement direction suddenly, uprush due to the medium amount flowing through the self closing stop valve 41 that transfinites and reach the closedown limit of the self closing stop valve 41 that transfinites, namely the self closing stop valve 41 that transfinites can cut out at once.So far, medium both cannot flow to pressure chamber 12 by one-way valve 3, also cannot flow to pressure chamber 12 by the self closing stop valve 41 that transfinites.Therefore the parked of piston 2 can be realized.If desired allow the present invention again recover stroke motion state, only need give the external force that 2 one, piston is reverse with the direction of piston 2 movement before.Under this External Force Acting, due to medium reverse flow, the buttoned-up self closing stop valve 41 that transfinites oppositely backs down from the outflow opening of the self closing stop valve 41 that transfinites by the pressure that medium produces, the unlatching again of self closing stop valve 41 thus realization is transfinited.After described reverse external force disappears, medium can be flow in pressure chamber 12 by the self closing stop valve 41 that transfinites again, and realizes of the present inventionly again stretching.Above parked can be repeated multiple times, and can realize parked at an arbitrary position.
When specifically making, medium generally selects hydraulic pressure wet goods material, and hydraulic oil can ensure that the present invention is in more stable working state.Transfinite self closing stop valve 41 when medium flows to pressure chamber 12 from media cavity 11 slowly, be in opening state, once medium flow to pressure chamber 12 flow be greater than transfinite self closing stop valve 41 close setting value, the self closing stop valve 41 that transfinites namely realize close.After the reverse external force of applying, the buttoned-up self closing stop valve 41 that transfinites can be opened again by the backpressure of medium, thus medium can again by the self closing stop valve 41 that transfinites.Therefore choose applicable transfinite self closing stop valve 41 time, the selected self closing stop valve 41 that transfinites should meet closes in time when velocity of medium is excessive, and meets and open this two characteristics in time when medium reverse flow.
Described one-way valve 3 with transfinite self closing stop valve 41 when being connected with pressure chamber 12 with media cavity 11, can by selecting the pipeline communication of some strength, under ensureing high pressure, medium can not leak.
In order to allow MEDIA FLOW through transfinite self closing stop valve 41 time flow limited, the speed of piston 2 movement is allowed to slow down, thus guarantee is transfinited, self closing stop valve 41 is not impacted by excessive rate-of flow and causes destroying, can select to set up flow control valve 42, described flow control valve 42 is connected in series with the self closing stop valve 41 that transfinites and forms parked control valve 4, and the two ends of parked control valve 4 communicate with media cavity 11 and pressure chamber 12 respectively.As shown in Figure 1; flow control valve 42 is connected in series with the self closing stop valve 41 that transfinites and forms parked control valve 4; not only can close by the self closing stop valve 41 that transfinites the cutout realizing medium when needing to close cutout; also can limit the medium of overrunning by flow control valve 42, flow control valve 42 plays the effect of protection to the self closing stop valve 41 that transfinites.
In order to reduce the sensitivity of the self closing stop valve 41 that transfinites, namely allow transfinite self closing stop valve 41 larger External Force Acting in piston 2 time just close, thus avoid the present invention affect by extraneous slight interference factor, can set up and transfinite from valve opening 6, described transfiniting is parallel to flow control valve 42 two ends from valve opening 6, opens that to transfinite from the circulating direction of valve opening 6 be that media cavity 11 flows to pressure chamber 12.As shown in Figure 2 transfinite from valve opening 6 are normally closed structures, only just be opened when larger by the rate-of flow of flow control valve 42, so namely, a part of medium can be shunted, the time that the self closing stop valve 41 that delays to transfinite is self-closing, thus avoid extraneous slight external force to interference of the present invention.Same, choosing of the self closing stop valve 41 that transfinites also needs the flow parameter according to reality, sensitivity requirement etc. to choose flexibly.
In order to make structure of the present invention more exquisite, described one-way valve 3 and parked control valve 4 all can be arranged in piston head 21.As shown in Figure 1, one-way valve 3 and parked control valve 4 are arranged at piston head 21, both can reduce the space shared by the present invention, and one-way valve 3 and parked control valve 4 also can be allowed directly to communicate with media cavity 11 and pressure chamber 12.
Make cost of the present invention to reduce, reduce the correlative charges when filling high pressure liquid force feed, can select such scheme: set up the Flexible Connector 5 in media cavity 11, described Flexible Connector 5 is socketed on the piston rod 22 of piston 2.Owing to having newly increased Flexible Connector 5 as energy storing structure, then the medium of filling in pressure tube 1 has just no longer needed to use special high pressure filling equipment to fill, and only need fill by normal pressure.Because due to the existence of Flexible Connector 5, the power that piston 2 automatically resets to initial position mainly completes by Flexible Connector 5, and the medium of atmospheric pressure state just exists as damping function.Such mechanism eliminates the production process of some high costs, allows the present invention be more conducive to marketing.
Based on such scheme, make to simplify further and reduce costs, described Flexible Connector 5 can be chosen as spring.As shown in Figure 3, spring cost is low and performance is more stable, is the preferred material of Flexible Connector 5.Concretely: when external force compression pressure device, when spring is in extended state, after external force is cancelled, piston 2 can be pulled to media cavity 11 by spring.Now, occur once the external world direction identical with piston 2 movement direction now external force, the self closing stop valve 41 that transfinites cuts out at once, realizes parked; Only need give piston 2 certain compression external force.Under this External Force Acting, due to medium reverse flow, the buttoned-up self closing stop valve 41 that transfinites oppositely backs down from the outflow opening of the self closing stop valve 41 that transfinites by the pressure that medium produces, and the unlatching again of self closing stop valve 41 thus realization is transfinited, piston 2 will recover stroke motion to initial position.
The reset drives power of piston 2 movement of the program is spring, and concrete usage selects Compress Spring because of different scenes, still select extension spring, Flexible Connector 5 can be selected to be arranged on media cavity 11, also Flexible Connector 5 can be arranged on pressure chamber 12.
Random parked in order to piston 2 all can be realized on the movement direction of two, left and right, such scheme can be selected: comprise locking one-way valve 7 and the parked control valve 8 of locking, described locking one-way valve 7 is connected in series with parked control valve 4 and the circulating direction of locking one-way valve 7 is media cavity 11 flows to pressure chamber 12, and the parked control valve of described locking 8 is connected in series with one-way valve 3 and the circulating direction of the parked control valve 8 of locking is that pressure chamber 12 flows to media cavity 11.As shown in Figure 4, when medium flows to pressure chamber 12 from media cavity 11, the parked of piston is realized by the pipeline of locking one-way valve 7 with parked control valve 4 side; When medium flows to media cavity 11 from pressure chamber 12, the parked of piston is realized with the pipeline of one-way valve 3 side by the parked control valve 8 of locking.When specifically making, the parked control valve of locking 8 can select the mechanism the same with parked control valve 4, locking one-way valve 7 can select the mechanism the same with one-way valve 3, and when specifically installing, should be noted that the installation direction of the parked control valve 8 of locking and locking one-way valve 7, while guarantee medium smooth outflow, also can realize parked timely.For above-mentioned scheme, can be applied in the equipment such as elevator, lift, prevent abnormal hypervelocity, realize safety protection.
Claims (7)
1. pressure unit that can be parked arbitrarily, comprise pressure tube (1) and be socketed on the piston (2) in pressure tube (1), the inner chamber of pressure tube (1) is divided into media cavity (11) and pressure chamber (12) by the piston head (21) of described piston (2), it is characterized in that: comprise one-way valve (3) and the self closing stop valve that transfinites (41), the transfinite two ends of self closing stop valve (41) communicate with media cavity (11) and pressure chamber (12) and the circulating direction of the self closing stop valve that transfinites (41) is media cavity (11) flows to pressure chamber (12) respectively, the two ends of one-way valve (3) communicate with media cavity (11) and pressure chamber (12) respectively and the circulating direction of one-way valve (3) is pressure chamber (12) flows to media cavity (11).
2. pressure unit that as claimed in claim 1 can be parked arbitrarily, it is characterized in that: comprise flow control valve (42), described flow control valve (42) is connected in series with the self closing stop valve that transfinites (41) and forms parked control valve (4), and the two ends of parked control valve (4) communicate with media cavity (11) and pressure chamber (12) respectively.
3. pressure unit that as claimed in claim 2 can be parked arbitrarily, it is characterized in that: comprise and transfinite from valve opening (6), described transfiniting is parallel to flow control valve (42) two ends from valve opening (6), opens that to transfinite from the circulating direction of valve opening (6) be that media cavity (11) flows to pressure chamber (12).
4. as described in claim 1,2 or 3 can be parked arbitrarily pressure unit, it is characterized in that: described one-way valve (3) and the self closing stop valve that transfinites (41) are all arranged in piston head (21).
5. as described in claim 1,2 or 3 can be parked arbitrarily pressure unit, it is characterized in that: comprise the Flexible Connector (5) be arranged in media cavity (11), described Flexible Connector (5) is socketed on the piston rod (22) of piston (2).
6. pressure unit that as claimed in claim 5 can be parked arbitrarily, is characterized in that: Flexible Connector (5) is spring.
7. as described in claim 1,2,3 or 6 can be parked arbitrarily pressure unit, it is characterized in that: comprise locking one-way valve (7) and the parked control valve of locking (8), described locking one-way valve (7) is connected in series with parked control valve (4) and the circulating direction of locking one-way valve (7) is media cavity (11) flows to pressure chamber (12), and the parked control valve of described locking (8) is connected in series with one-way valve (3) and the circulating direction of the parked control valve of locking (8) is pressure chamber (12) flows to media cavity (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310389939.7A CN103438043B (en) | 2013-09-02 | 2013-09-02 | Pressure unit that can be parked arbitrarily |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310389939.7A CN103438043B (en) | 2013-09-02 | 2013-09-02 | Pressure unit that can be parked arbitrarily |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103438043A CN103438043A (en) | 2013-12-11 |
| CN103438043B true CN103438043B (en) | 2015-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310389939.7A Expired - Fee Related CN103438043B (en) | 2013-09-02 | 2013-09-02 | Pressure unit that can be parked arbitrarily |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103438043B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6089931A (en) * | 1998-03-31 | 2000-07-18 | Showa Corporation | Trim-tilt device for marine propulsion device |
| CN2750095Y (en) * | 2005-06-24 | 2006-01-04 | 北京吉信气弹簧制品有限公司 | Power assisted support rod gas spring with balancing structure |
| CN201944178U (en) * | 2011-03-03 | 2011-08-24 | 北京吉信气弹簧制品有限公司 | Assistance supporting bar gas spring of memory-alloy low-temperature balanced structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02162193A (en) * | 1989-04-20 | 1990-06-21 | Sanshin Ind Co Ltd | Tilt locking device for ship propeller |
| JP2000006889A (en) * | 1998-06-17 | 2000-01-11 | Showa Corp | Tilting device for marine vessel propulsion machine |
-
2013
- 2013-09-02 CN CN201310389939.7A patent/CN103438043B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6089931A (en) * | 1998-03-31 | 2000-07-18 | Showa Corporation | Trim-tilt device for marine propulsion device |
| CN2750095Y (en) * | 2005-06-24 | 2006-01-04 | 北京吉信气弹簧制品有限公司 | Power assisted support rod gas spring with balancing structure |
| CN201944178U (en) * | 2011-03-03 | 2011-08-24 | 北京吉信气弹簧制品有限公司 | Assistance supporting bar gas spring of memory-alloy low-temperature balanced structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103438043A (en) | 2013-12-11 |
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Granted publication date: 20151223 |
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