CN203497995U - Transition plate used for pneumatic hydraulic jack and pneumatic hydraulic jack - Google Patents
Transition plate used for pneumatic hydraulic jack and pneumatic hydraulic jack Download PDFInfo
- Publication number
- CN203497995U CN203497995U CN201320610518.8U CN201320610518U CN203497995U CN 203497995 U CN203497995 U CN 203497995U CN 201320610518 U CN201320610518 U CN 201320610518U CN 203497995 U CN203497995 U CN 203497995U
- Authority
- CN
- China
- Prior art keywords
- rebound
- release
- oil
- check valve
- pressure relief
- 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.)
- Withdrawn - After Issue
Links
Images
Abstract
The utility model discloses a transition plate used for a pneumatic hydraulic jack and the pneumatic hydraulic jack. The transition plate comprises a transition plate body. The transition plate body is provided with an oil supply way, wherein the oil supply way is communicated with a jack oil tank and an ejection oil cylinder and is connected with a pressure relieving oil way for oil to flow back into the oil tank. The pressure relieving oil way is provided with a pressure relieving one-way valve capable of being opened only in the single direction from the oil tank to the ejection oil cylinder. The pressure relieving one-way valve comprises a pressure relieving valve body channel vertically arranged on the pressure relieving oil way. The pneumatic hydraulic jack comprises the ejection oil cylinder, the oil tank, a pneumatic booster and the transition plate. The oil tank is connected with the ejection oil cylinder through the oil supply way on the transition plate, and hydraulic oil is pumped into the ejection oil cylinder through the pneumatic booster connected to the oil supply way. The transition plate has the advantages of being simple in structure, low in cost, safe, reliable and the like.
Description
Technical field
The utility model relates generally to hydraulic jack field, refers in particular to a kind of rebound for Pneumahydraulic jack and Pneumahydraulic jack.
Background technology
Pneumahydraulic jack generally comprises jacking cylinder, fuel tank, rebound and Pneumatic booster, and fuel tank is connected with jacking cylinder by the oil feeding line on rebound and by the Pneumatic booster being connected on oil feeding line, hydraulic oil is pumped into jacking cylinder.Its rebound operated by rotary motion has three check valves, comprises the first check valve and the second check valve be located at successively on oil feeding line, is located at the decompressin check valve on release oil circuit.The first check valve and the second check valve, with Pneumatic booster work, are controlled running of hydraulic power oil direction, and the second check valve and decompressin check valve play sealing pressure maintaining effect to jacking cylinder, and decompressin check valve plays pressure-relief valve effect simultaneously.In Pneumatic booster when work,, hydraulic oil enters jacking cylinder through the first check valve and the second check valve rises jack; During quiescence, the second check valve and decompressin check valve sealing pressurize; During release, by release control assembly, decompressin check valve is opened, the hydraulic oil in jacking cylinder flows back to fuel tank through decompressin check valve, and jack declines.
Decompressin check valve on existing rebound is horizontal arrangement (the release valve body channel water plain cloth that is decompressin check valve is put) mostly, because hydraulic oil can be taken away metallic particles and the micronic dust wearing away in oil line pipe and jacking cylinder after recycling, when hydraulic oil is flowed through the decompressin check valve of horizontal arrangement, under Action of Gravity Field, metallic particles and micronic dust can be deposited in the release valve channel of level, affect the sealing property of decompressin check valve, produce and leak.Because decompressin check valve plays sealing pressure maintaining effect, so will there is great potential safety hazard while produce leaking in decompressin check valve.
Release control assembly is mainly comprised of release push rod and release piston, and during release, release piston drives release push rod that decompressin check valve is backed down under compressed-air actuated promotion.After decompressin check valve is backed down, hydraulic oil is back to fuel tank from the gap between release push rod and the pressure relief vent of release valve channel.At present, the diameter that release push rod penetrates the pushing end of pressure relief vent is generally 2.5mm, and the diameter of pressure relief vent is 5mm, and the difference of both cross-sectional areas is 17.2mm
2, jack release under load condition, descending speed is too fast, and load has the danger of toppling, particularly heavy-load automobile to decline to have the danger of blowing out when too fast; And the pushing end diameter release push rod insufficient strength that is 2.5mm, after Reusability, easily flexural deformation, need to often change.
Utility model content
The technical problems to be solved in the utility model is: the deficiency existing for prior art, provides a kind of simple in structure, with low cost, safe and reliable rebound for Pneumahydraulic jack and Pneumahydraulic jack.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of rebound for Pneumahydraulic jack, comprise rebound body, described rebound body is provided with the oil feeding line that is communicated with jack fuel tank and jacking cylinder, described oil feeding line connection one is back to the release oil circuit of fuel tank, described release oil circuit is provided with can only be along fuel tank to the unidirectional decompressin check valve of opening of jacking cylinder direction, and described decompressin check valve comprises the release valve channel of the vertical layout of being located on release oil circuit.
Further improvement as the utility model rebound:
Described release valve channel comprises mounting hole and the pressure relief vent that is positioned at mounting hole top, and the diameter of described pressure relief vent is less than the diameter of mounting hole.
Described decompressin check valve also comprises Compress Spring and the steel ball that is arranged in mounting hole, and described steel ball is between Compress Spring and pressure relief vent, and described steel ball is sealed and matched by the thrust of Compress Spring and the bottom opening of pressure relief vent.
On described rebound body, be also provided with the release control assembly opening and closing for controlling decompressin check valve, described release control assembly comprises for the release push rod through pressure relief vent pushing tow steel ball.
Described release push rod is 5mm～5.5mm through the diameter d of the pushing end of pressure relief vent.
The difference of the cross-sectional area of described release push rod pushing end and the cross-sectional area of pressure relief vent is 4mm
2～4.5mm
2.
Described release control assembly also comprises the release piston being connected with release push rod, described release piston is slidedly arranged in the piston hole of offering on rebound body, described release piston hole seals by piston cap, and described piston cap is provided with for pass into compressed-air actuated air extractor vent in release piston hole.
Described oil feeding line is provided with for connecting the air pump interface of Pneumatic booster.
On described oil feeding line, along fuel feeding direction, be provided with successively the first check valve and the second check valve, described the second check valve comprises the second valve channel of the vertical layout of being located on oil feeding line.
A kind of Pneumahydraulic jack, comprise jacking cylinder, fuel tank, Pneumatic booster and above-mentioned rebound, described fuel tank is connected with jacking cylinder by the oil feeding line on rebound, and by the Pneumatic booster being connected on described oil feeding line, hydraulic oil is pumped into jacking cylinder.
Compared with prior art, the utility model has the advantage of:
Rebound for Pneumahydraulic jack of the present utility model, it is simple in structure, with low cost, because the release valve channel of decompressin check valve is arranged vertically, when hydraulic oil is flowed through decompressin check valve, metallic particles in hydraulic oil and micronic dust will move downward along release valve channel under Action of Gravity Field, and can not be deposited in release valve channel, therefore can not impact the sealing property of decompressin check valve, thus the safety and reliability of raising product; The diameter d of release push rod pushing end is 5mm～5.5mm, has enough intensity, can, because of Reusability flexural deformation, can not improve the service life of release push rod; The difference of the cross-sectional area of release push rod pushing end and the cross-sectional area of pressure relief vent is 4mm
2～4.5mm
2, the release flow of hydraulic oil significantly reduces, and can guarantee that the slow average rate of load declines, and further improves safety.Correspondingly, Pneumahydraulic jack of the present utility model has above-mentioned advantage equally.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the utility model rebound.
Fig. 2 is the sectional structure schematic diagram of the utility model Pneumahydraulic jack.
Marginal data:
1, jacking cylinder; 2, vehicle frame; 3, wheel; 4, control lever; 5, rebound; 6, Pneumatic booster;
51, rebound body; 52, oil feeding line; 521, oil inlet interface; 522, air pump interface; 53, release oil circuit; 54, decompressin check valve; 541, release valve channel; 542, mounting hole; 543, pressure relief vent; 544, Compress Spring; 545, steel ball; 551, release push rod; 552, release piston; 553, piston hole; 554, piston cap; 555, blowhole; 556, back lash spring; 58, the first check valve; 59, the second check valve; 591, the second valve channel.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, the rebound for Pneumahydraulic jack of the present embodiment, comprise rebound body 51, rebound body 51 is provided with the oil feeding line 52 that is communicated with jack fuel tank (not shown) and jacking cylinder 1, and oil feeding line 52 is provided with the first check valve 58, the second check valve 59, for connecting the oil inlet interface 521 of fuel tank and for connecting the air pump interface 522 of Pneumatic booster 6.During Pneumatic booster 6 work, the hydraulic oil in fuel tank enters jacking cylinder 1 through the first check valve 58 and the second check valve 59 successively rises jack.Oil feeding line 52 connections one are back to the release oil circuit 53 of fuel tank, and release oil circuit 53 is provided with can only be along fuel tank to the unidirectional decompressin check valve of opening 54 of jacking cylinder 1 direction.Jack rises a segment distance when static, and decompressin check valve 54 and the second check valve 59 are jointly to 1 sealing pressure maintaining effect of jacking cylinder; During release, decompressin check valve 54 is opened, and the hydraulic oil in jacking cylinder 1 flows back to fuel tank through decompressin check valve 54, and jack declines.Decompressin check valve 54 comprises the release valve channel 541 of the vertical layout of being located on release oil circuit 53, because release valve channel 541 is arranged vertically, when hydraulic oil is flowed through decompressin check valve 54, metallic particles in hydraulic oil and micronic dust will move downward along release valve channel 541 under Action of Gravity Field, and can not be deposited in release valve channel 541, therefore can not impact the sealing property of decompressin check valve 54, thereby the safety and reliability of raising product.
In the present embodiment, the second check valve 59 comprises the second valve channel 591 of the vertical layout of being located on oil feeding line 52, the vertical layout of the second valve channel 591 can prevent that metallic particles and the micronic dust in hydraulic oil is deposited in the second valve channel 591 equally, thereby improve the sealing property of the second check valve 59, further improve the safety and reliability of product.
In the present embodiment, release valve channel 541 comprises mounting hole 542 and the pressure relief vent 543 that is positioned at mounting hole 542 tops, and the diameter of pressure relief vent 543 is less than the diameter of mounting hole 542.Decompressin check valve 54 also comprises Compress Spring 544 and the steel ball 545 that is arranged in mounting hole 542, and steel ball 545 is between Compress Spring 544 and pressure relief vent 543, and steel ball 545 is sealed and matched by the thrust of Compress Spring 544 and the bottom opening of pressure relief vent 543.
In the present embodiment, on rebound body 51, be also provided with the release control assembly opening and closing for controlling decompressin check valve 54, release control assembly comprises for the release push rod 551 through pressure relief vent 543 pushing tow steel balls 545, the release piston 552 being connected with release push rod 551.On release push rod 551, be arranged with for driving the back lash spring 556 of release push rod 551 returns, release piston 552 is slidedly arranged in the piston hole 553 of offering on rebound body 51, piston hole 553 seals by piston cap 554, and piston cap 554 is provided with for pass into compressed-air actuated blowhole 555 in piston hole 553.During release, by passing into pressurized air from blowhole 555, release piston 552 just promotes release push rod 551 under pressurized air effect from pressure relief vent 543, opens decompressin check valve 54 in top downwards steel ball 545; Stop after the logical pressurized air of blowhole 555, release push rod 551 is got back to initial position under the restoring force effect of back lash spring 556, and decompressin check valve 54 is closed again.
Release push rod 551 is 5mm～5.5mm through the diameter d of the pushing end of pressure relief vent 543, has enough intensity, can because of Reusability flexural deformation, can not improve the service life of release push rod 551, d=5.2mm in the present embodiment.
The difference of the cross-sectional area of release push rod 551 pushing end and the cross-sectional area of pressure relief vent 543 is 4mm
2～4.5mm
2, hydraulic oil release flow significantly reduces, and can guarantee that the slow average rate of load declines, and further improves safety, and in the present embodiment, the difference of the cross-sectional area of release push rod 551 pushing end and the cross-sectional area of pressure relief vent 543 is 4.28mm
2.
As shown in Figure 2, the Pneumahydraulic jack of the present embodiment, comprise vehicle frame 2 and be installed on fuel tank, jacking cylinder 1, Pneumatic booster 6, wheel 3, control lever 4 and the above-mentioned rebound 5 on vehicle frame 2, fuel tank is connected with jacking cylinder 1 by the oil feeding line 52 on rebound 5, and by the Pneumatic booster 6 being connected on oil feeding line 52, hydraulic oil is pumped into jacking cylinder 1.Control lever 4 is mainly used in promoting jack walking for people, is also provided with for controlling switch and the handle of jack start and stop, lifting on control lever 4.
Although the utility model discloses as above with preferred embodiment, yet not in order to limit the utility model.Any those of ordinary skill in the art, in the situation that not departing from technical solutions of the utility model scope, all can utilize the technology contents of above-mentioned announcement to make many possible changes and modification to technical solutions of the utility model, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not depart from technical solutions of the utility model,, all should drop in the scope of technical solutions of the utility model protection any simple modification made for any of the above embodiments, equivalent variations and modification according to the utility model technical spirit.
Claims (10)
1. the rebound for Pneumahydraulic jack, comprise rebound body (51), described rebound body (51) is provided with the oil feeding line (52) that is communicated with jack fuel tank and jacking cylinder (1), described oil feeding line (52) connection one is back to the release oil circuit (53) of fuel tank, described release oil circuit (53) be provided with can only be along fuel tank to jacking cylinder the unidirectional decompressin check valve of opening of (1) direction (54), it is characterized in that: described decompressin check valve (54) comprises the release valve channel (541) of being located at the vertical layout on release oil circuit (53).
2. the rebound for Pneumahydraulic jack according to claim 1, it is characterized in that: described release valve channel (541) comprises mounting hole (542) and be positioned at the pressure relief vent (543) of mounting hole (542) top, the diameter of described pressure relief vent (543) is less than the diameter of mounting hole (542).
3. the rebound for Pneumahydraulic jack according to claim 2, it is characterized in that: described decompressin check valve (54) also comprises Compress Spring (544) and the steel ball (545) that is arranged in mounting hole (542), described steel ball (545) is positioned between Compress Spring (544) and pressure relief vent (543), and described steel ball (545) is sealed and matched by the thrust of Compress Spring (544) and the bottom opening of pressure relief vent (543).
4. the rebound for Pneumahydraulic jack according to claim 3, it is characterized in that: on described rebound body (51), be also provided with the release control assembly opening and closing for controlling decompressin check valve (54), described release control assembly comprises for the release push rod (551) through pressure relief vent (543) pushing tow steel ball (545).
5. the rebound for Pneumahydraulic jack according to claim 4, is characterized in that: described release push rod (551) is 5mm～5.5mm through the diameter d of the pushing end of pressure relief vent (543).
6. according to the rebound for Pneumahydraulic jack described in claim 4 or 5, it is characterized in that: the difference of the cross-sectional area of described release push rod (551) pushing end and the cross-sectional area of pressure relief vent (543) is 4mm
2～4.5mm
2.
7. according to the rebound for Pneumahydraulic jack described in claim 4 or 5, it is characterized in that: described release control assembly also comprises the release piston (552) being connected with release push rod (551), described release piston (552) is slidedly arranged in the piston hole (553) of offering on rebound body (51), described piston hole (553) is by piston cap (554) sealing, and described piston cap (554) is provided with for pass into compressed-air actuated blowhole (555) in piston hole (553).
8. according to the rebound for Pneumahydraulic jack described in any one in claim 1 to 5, it is characterized in that: described oil feeding line (52) is provided with for connecting the air pump interface (522) of Pneumatic booster (6).
9. according to the rebound for Pneumahydraulic jack described in any one in claim 1 to 5, it is characterized in that: described oil feeding line (52) is upper is provided with the first check valve (58) and the second check valve (59) successively along fuel feeding direction, and described the second check valve (59) comprises the second valve channel (591) of being located at the vertical layout on oil feeding line (52).
10. a Pneumahydraulic jack, comprise jacking cylinder (1), fuel tank and Pneumatic booster (6), it is characterized in that: also comprise rebound (5) as in one of claimed in any of claims 1 to 9, described fuel tank is connected with jacking cylinder (1) by the oil feeding line (52) on rebound (5), and by the Pneumatic booster (6) being connected on described oil feeding line (52), hydraulic oil is pumped into jacking cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320610518.8U CN203497995U (en) | 2013-09-30 | 2013-09-30 | Transition plate used for pneumatic hydraulic jack and pneumatic hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320610518.8U CN203497995U (en) | 2013-09-30 | 2013-09-30 | Transition plate used for pneumatic hydraulic jack and pneumatic hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203497995U true CN203497995U (en) | 2014-03-26 |
Family
ID=50328993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320610518.8U Withdrawn - After Issue CN203497995U (en) | 2013-09-30 | 2013-09-30 | Transition plate used for pneumatic hydraulic jack and pneumatic hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203497995U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103466499A (en) * | 2013-09-30 | 2013-12-25 | 衡阳市锦泰工具有限公司 | Transition plate for air-driven hydraulic jack and air-driven hydraulic jack |
| CN110540145A (en) * | 2019-09-06 | 2019-12-06 | 易琨云 | Pneumatic and manual dual-purpose oil pump and jack |
-
2013
- 2013-09-30 CN CN201320610518.8U patent/CN203497995U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103466499A (en) * | 2013-09-30 | 2013-12-25 | 衡阳市锦泰工具有限公司 | Transition plate for air-driven hydraulic jack and air-driven hydraulic jack |
| CN103466499B (en) * | 2013-09-30 | 2015-10-21 | 衡阳市锦泰工具有限公司 | For rebound and the Pneumahydraulic jack of Pneumahydraulic jack |
| CN110540145A (en) * | 2019-09-06 | 2019-12-06 | 易琨云 | Pneumatic and manual dual-purpose oil pump and jack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203497995U (en) | Transition plate used for pneumatic hydraulic jack and pneumatic hydraulic jack | |
| CN201309784Y (en) | Elevator buffer device | |
| CN203497997U (en) | Pneumatic hydraulic jack with no-load fast jacking function | |
| CN103466499B (en) | For rebound and the Pneumahydraulic jack of Pneumahydraulic jack | |
| CN201951447U (en) | Multi-axle automatic adjusting type emergency relay valve | |
| CN203223438U (en) | Piston type single-action hydraulic cylinder | |
| CN209957176U (en) | Embedded multi-stage elevator buffer | |
| CN201553217U (en) | Automobile cab hydraulic reversing device | |
| CN200981804Y (en) | Electric hydraulic jack for vehicle | |
| CN203498001U (en) | Transition plate for pneumatic hydraulic jack and pneumatic hydraulic jack | |
| CN201148177Y (en) | Improved single oil path hydraulic type automobile driver's cabin tumbler | |
| CN203497998U (en) | Hydraulic jack with internal-circulation type pneumatic booster | |
| CN2450036Y (en) | Quick hydraulic jack | |
| CN101216117A (en) | Inner pressure type self locking hoisting jack release valve | |
| CN216549107U (en) | Leakage-proof hydraulic oil energy-consuming type buffer convenient to install | |
| CN201884355U (en) | Hydraulic controlled high flow lifting distribution valve for large-sized mining electric wheel dumper | |
| CN205527141U (en) | Elevator manual device of saving oneself that falls | |
| CN103466502B (en) | Pneumahydraulic jack rebound and Pneumahydraulic jack | |
| CN2578294Y (en) | Hydraulic buffer of elevator | |
| CN204611015U (en) | A kind of novel invertor lifting oil pump breather plug structure | |
| CN202808136U (en) | Pneumatic type safety curtain for cage | |
| CN2521198Y (en) | Plunger damping hydraulic oil cylinder | |
| CN204161346U (en) | Anti-malfunctioning four control main brake valves | |
| CN202500733U (en) | Supercharging water injection pump | |
| CN103466498A (en) | Pneumatic hydraulic jack with no-load fast jacking function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140326 Effective date of abandoning: 20151021 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140326 Effective date of abandoning: 20151021 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |