CN204572615U - Nitrogen pressurization oil cylinder and pressurizing system thereof - Google Patents
Nitrogen pressurization oil cylinder and pressurizing system thereof Download PDFInfo
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- CN204572615U CN204572615U CN201520170583.2U CN201520170583U CN204572615U CN 204572615 U CN204572615 U CN 204572615U CN 201520170583 U CN201520170583 U CN 201520170583U CN 204572615 U CN204572615 U CN 204572615U
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Abstract
Nitrogen pressurization oil cylinder and pressurizing system thereof, belong to nitrogen pressurization equipment technical field.Comprise hydraulic jack and nitrogen compressor structure, piston rod (2) front end of hydraulic jack is connected with nitrogen compressor structure, nitrogen compressor structure has nitrogen chamber (11), and nitrogen compressor structure is provided with the nitrogen passing hole being communicated with nitrogen chamber (11), piston rod (2) drives nitrogen compressor structure to compress nitrogen chamber (11) interior nitrogen and by nitrogen passing hole output squeezing nitrogen.Nitrogen pressurization oil cylinder of the present utility model can by nitrogen Quick-pressing, and fabricating cost is cheap, and the pressurizing system structure of this nitrogen pressurization oil cylinder simply can by stable being delivered in nitrogen cylinder of nitrogen after pressurization.
Description
Technical field
Nitrogen pressurization oil cylinder and pressurizing system thereof, belong to nitrogen pressurization equipment technical field.
Background technique
As everyone knows, engineering machinery is except being made up of parts such as power system, mechanical structure, electrical system, Gas fluid pressure systems, the pressurize such as nitrogen pot, nitrogen cylinder, Equilibrator are also its critical function parts, as elevator braking nitrogen pot, suspension system nitrogen pot, the anti-hypsokinesis oil cylinder of tower arm etc.Effective work of these parts is the necessary conditions ensureing crane job safety; and in actual use; these parts often there will be the situation of the smooth base caused because of leather bag breakage, seal fails etc., and this can produce extremely adverse influence to crane job reliability undoubtedly.Avoiding this type of adverse effect, first will carry out periodic test to it, just should keep in repair timely and effectively once go wrong.
The maintenance of nitrogen pot, nitrogen cylinder is generally divided into that job site is keeped in repair, maintenance two kinds of situations in garage, and no matter in which kind of situation, repairing filling of rear nitrogen is the major tasks of its maintenance, is also the difficult task that it keeps in repair.The common method of this type of nitrogen inflating uses nitrogen pressure nitrogen directly to fill, this can cause nitrogen in a large amount of nitrogen bottle fully not use on the one hand, produce wasting phenomena, on the other hand the most high energy of the nitrogen pre-charging pressure of some nitrogen cylinder reaches 14MPa, and the full bottle pressure of nitrogen bottle only has 10MPa, this method cannot reach and fill requirement.Therefore some nitrogen cylinder is had to be transported to professional nitrogen separation filling plant and is filled after repairing.When filling, filling plant need reset nitrogen inflating pressure, and this need carry out a large amount of coordinations, adjustment work, even if often there is the situation that increase expense filling plant is also unwilling to fill when therefore single-piece fills.Meet an urgent need to fill or keep in repair if on-the-spot and just require that maintenance work can be carried out timely and effectively, and scene does not have nitrogen inflating condition, this just causes the delay of keeping in repair the duration, causes further affecting site operation.
Model utility content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, nitrogen pressurization oil cylinder is provided and the pressurizing system of this nitrogen pressurization oil cylinder is installed, this nitrogen pressurization oil cylinder can by nitrogen Quick-pressing, and fabricating cost is cheap, the pressurizing system structure of this nitrogen pressurization oil cylinder simply can by stable being delivered in nitrogen cylinder of nitrogen after pressurization.
The utility model solves the technological scheme that its technical problem adopts: this nitrogen pressurization oil cylinder, comprise hydraulic jack and nitrogen compressor structure, the piston rod front end of hydraulic jack is connected with nitrogen compressor structure, nitrogen compressor structure has nitrogen chamber, and nitrogen compressor structure is provided with and is communicated with the nitrogen passing hole in nitrogen chamber, piston rod drives nitrogen compressor structure to compress nitrogen in nitrogen chamber and by nitrogen passing hole output squeezing nitrogen.
Described nitrogen compressor structure comprises nitrogen chamber cylinder barrel, end closure open rearward end before the cylinder barrel of nitrogen chamber, piston rod front end is inserted from nitrogen chamber cylinder barrel open rearward end, and nitrogen chamber cylinder barrel and piston rod front end surround nitrogen chamber, and the wall of nitrogen chamber cylinder barrel is provided with nitrogen passing hole.
Described hydraulic jack comprises oil pocket cylinder barrel, end closure front opening after oil pocket cylinder barrel, and the front opening place of oil pocket cylinder barrel is fixedly connected with end socket, and piston rod is sleeved in the perforate at end socket center, and piston rod rear end is inserted in oil pocket cylinder barrel.
Described end socket, oil pocket cylinder barrel and piston rod rear end surround the first oil pocket, and piston rod rear end and oil pocket cylinder barrel surround the second oil pocket, oil pocket cylinder barrel have the first oil duct junction communicated with the first oil pocket, the second oil duct junction communicated with the second oil pocket.
Described piston rod front end is provided with nitrogen chamber piston, and piston rod rear end is provided with gallery piston.
Described hydraulic jack comprises oil pocket cylinder barrel, end closure front opening after oil pocket cylinder barrel, described nitrogen compressor structure comprises nitrogen chamber cylinder barrel, end closure open rearward end before the cylinder barrel of nitrogen chamber, nitrogen chamber cylinder barrel is not also fixedly connected on end socket both sides with oil pocket cylinder barrel in the mode that opening is relative, end socket, nitrogen chamber cylinder barrel and piston rod front end surround air cavity, nitrogen chamber cylinder barrel have the vent communicated with air cavity inside.
Described nitrogen passing hole is made up of nitrogen outlet and nitrogen inlet, and nitrogen outlet and nitrogen inlet communicate with inside, nitrogen chamber respectively.
A kind of pressurizing system, comprise oil-servicing facilities, selector valve, nitrogen bottle and nitrogen pressurization oil cylinder as above, nitrogen passing hole connects nitrogen bottle and outgassing nonreturn valve respectively by pipeline, the nitrogen outlet pipe at outgassing nonreturn valve place is provided with barometer, pipeline between nitrogen passing hole and nitrogen bottle is provided with breather check valve, hydraulic jack is connected with oil-servicing facilities pipeline, and the pipeline between hydraulic jack and oil-servicing facilities is provided with selector valve.
Described hydraulic jack comprises oil pocket cylinder barrel, end closure front opening after oil pocket cylinder barrel, and the front opening place of oil pocket cylinder barrel is fixedly connected with end socket, and piston rod is sleeved in the perforate at end socket center, and piston rod rear end is inserted in oil pocket cylinder barrel; Described end socket, oil pocket cylinder barrel and piston rod rear end surround the first oil pocket, and piston rod rear end and oil pocket cylinder barrel surround the second oil pocket, oil pocket cylinder barrel have the first oil duct junction communicated with the first oil pocket, the second oil duct junction communicated with the second oil pocket; First oil duct junction is connected with selector valve pipeline respectively with the second oil duct junction, and selector valve is connected with oil-servicing facilities pipeline.
Described oil-servicing facilities is oil hydraulic pump.
Compared with prior art, the beneficial effect that nitrogen pressurization oil cylinder of the present utility model and pressurizing system thereof have is:
1, this nitrogen pressurization oil cylinder is under the cooperation of piston movement, by changing the oil-filled amount in the first oil pocket and the second oil pocket, changing the volume size in nitrogen chamber, thus realizing compressed nitrogen flexibly, regulates the effect of nitrogen pressure.Nitrogen pressurization oil cylinder agent structure of the present utility model can utilize waste and old making, turns waste into wealth, and design maximum pressure 30MPa, namely this device can complete filling of maximum pressure 30MPa nitrogen.
2, the nitrogen inflating of the utility model nitrogen Pneumatic compression device nitrogen pot, cylinder can complete completely voluntarily, nitrogen in nitrogen bottle can be made full use of, and avoids waste, and greatly reduces labor intensity, saves a large amount of artificial, cost of transportation.This device light and flexible, scene has demand can be transported to scene at any time to use, and keeping in repair timely and effectively for scene provides great guarantee.Reduce hoist engineering time, ensure the normal operation of job site hoist, ensure the on-site hoisting construction period.
Accompanying drawing explanation
Fig. 1 is nitrogen pressurization cylinder structure schematic diagram.
Fig. 2 is the structural representation of the pressurizing system at nitrogen pressurization oil cylinder place.
Wherein: 101, nitrogen chamber cylinder barrel; 102, oil pocket cylinder barrel; 2, piston rod; 3, end socket; 4, nitrogen chamber piston; 5, gallery piston; 6, nitrogen outlet; 7, nitrogen inlet; 8, vent; 9, the first oil duct junction; 10, the second oil duct junction; 11, nitrogen chamber; 12, air cavity; 13, the first oil pocket; 14, the second oil pocket; 15, nitrogen bottle; 16, breather check valve; 17, outgassing nonreturn valve; 18, barometer; 19, selector valve; 20, oil-servicing facilities.
Embodiment
Fig. 1 is most preferred embodiment of the present utility model, is described further below in conjunction with accompanying drawing 1 ~ 2 pair of the utility model.
With reference to Fig. 1, nitrogen pressurization oil cylinder of the present utility model, comprise hydraulic jack and nitrogen compressor structure, piston rod 2 front end of hydraulic jack is connected with nitrogen compressor structure, nitrogen compressor structure has nitrogen chamber 11, and nitrogen compressor structure is provided with and is communicated with the nitrogen passing hole in nitrogen chamber 11, piston rod 2 drives nitrogen compressor structure to compress nitrogen in nitrogen chamber 11 and by nitrogen passing hole output squeezing nitrogen.Nitrogen passing hole is made up of nitrogen outlet 6 and nitrogen inlet 7, and nitrogen outlet 6 and nitrogen inlet 7 communicate with inside, nitrogen chamber 11 respectively.
Nitrogen compressor structure comprises nitrogen chamber cylinder barrel 101, end closure open rearward end before nitrogen chamber cylinder barrel 101, piston rod 2 front end is inserted from nitrogen chamber cylinder barrel 101 open rearward end, and nitrogen chamber cylinder barrel 101 and piston rod 2 front end surround nitrogen chamber 11, and the wall of nitrogen chamber cylinder barrel 101 is provided with nitrogen passing hole.
Hydraulic jack comprises oil pocket cylinder barrel 102, end closure front opening after oil pocket cylinder barrel 102, and the front opening place of oil pocket cylinder barrel 102 is fixedly connected with end socket 3, and piston rod 2 is sleeved in the perforate at end socket 3 center, and piston rod 2 rear end is inserted in oil pocket cylinder barrel 102.End socket 3, oil pocket cylinder barrel 102 surround the first oil pocket 13 with piston rod 2 rear end, piston rod 2 rear end and oil pocket cylinder barrel 102 surround the second oil pocket 14, oil pocket cylinder barrel 102 have the first oil duct junction 9 communicated with the first oil pocket 13, the second oil duct junction 10 communicated with the second oil pocket 14.
Nitrogen chamber cylinder barrel 101 is fixedly connected on end socket 3 both sides with oil pocket cylinder barrel 102 respectively in the mode that opening is relative, end socket 3, nitrogen chamber cylinder barrel 101 surround air cavity 12 with piston rod 2 front end, nitrogen chamber cylinder barrel 101 have the vent 8 communicated with air cavity 12 inside.Or nitrogen chamber cylinder barrel 101 and oil pocket cylinder barrel 102 can form the cylinder body of integrative-structure, and end socket 3 is fixedly connected on cylinder interior stage casing.
Piston rod 2 front end is provided with nitrogen chamber piston 4, and piston rod 2 rear end is provided with gallery piston 5.Nitrogen chamber piston 4 is by cross section sealing in nitrogen chamber cylinder barrel 101, and gallery piston 5 is by cross section sealing in oil pocket cylinder barrel 102.Nitrogen chamber 11, air cavity 12, first oil pocket 13 and the second oil pocket 14 are four independently chambeies, by nitrogen chamber piston 4 sealed spacer between nitrogen chamber 11 and air cavity 12, by end socket 3 and piston rod 2 sealed spacer between air cavity 12 and the first oil pocket 13, by gallery piston 5 sealed spacer between the first oil pocket 13 and the second oil pocket 14.
With reference to Fig. 2, a kind of pressurizing system, comprise oil-servicing facilities 20, selector valve 19, nitrogen bottle 15 and described nitrogen pressurization oil cylinder, nitrogen passing hole connects nitrogen bottle 15 and outgassing nonreturn valve 17 respectively by pipeline, the nitrogen outlet pipe at outgassing nonreturn valve 17 place is provided with barometer 18, pipeline between nitrogen passing hole and nitrogen bottle 15 is provided with breather check valve 16, and hydraulic jack is connected with oil-servicing facilities 20 pipeline, and the pipeline between hydraulic jack and oil-servicing facilities 20 is provided with selector valve 19.Described hydraulic jack comprises oil pocket cylinder barrel 102, end closure front opening after oil pocket cylinder barrel 102, and the front opening place of oil pocket cylinder barrel 102 is fixedly connected with end socket 3, and piston rod 2 is sleeved in the perforate at end socket 3 center, and piston rod 2 rear end is inserted in oil pocket cylinder barrel 102; Described end socket 3, oil pocket cylinder barrel 102 surround the first oil pocket 13 with piston rod 2 rear end, piston rod 2 rear end and oil pocket cylinder barrel 102 surround the second oil pocket 14, oil pocket cylinder barrel 102 have the first oil duct junction 9 communicated with the first oil pocket 13, the second oil duct junction 10 communicated with the second oil pocket 14; First oil duct junction 9 is connected with selector valve 19 pipeline respectively with the second oil duct junction 10, and selector valve 19 is connected with oil-servicing facilities 20 pipeline.With reference to Fig. 2, the A mouth of selector valve 19 is connected with the first oil duct junction 9 pipeline, and B mouth second oil duct junction 10 pipeline of selector valve 19 connects; Selector valve 19 is connected with oil-servicing facilities 20 pipeline, and the P mouth with reference to Fig. 2 selector valve 19 is connected with oil-servicing facilities 20 pipeline.With reference to Fig. 2, preferably, oil-servicing facilities 20 hydraulic-pressure pump, in Fig. 2, the first half encircled portion of oil-servicing facilities 20 represents oil hydraulic pump, and black triangle wherein represents hydraulic pressure, and also representing that turnover pipeline direction installed by oil hydraulic pump is bottom in and top out.In Fig. 2, the mountain font of oil-servicing facilities 20 Lower Half represents the mountain glyph part connecting tube with other position.
Pass into nitrogen in nitrogen chamber 11 in the present embodiment, air cavity 12 communicates with ambient air and is convenient to piston rod 2 and moves, oil-filled respectively in the first oil pocket 13 and the second oil pocket 14, and the oil filled in the first oil pocket 13 and the second oil pocket 14 exchanges by selector valve 19.Except above mode of execution, the utility model can also adopt multiple nitrogen pressurization mode: be filled with nitrogen in such as nitrogen chamber 11 and the second oil pocket 14, in nitrogen chamber 11 and the second oil pocket 14, institute's inflated with nitrogen can exchange mutually, oil-filled in air cavity 12 and the first oil pocket 13, in air cavity 12 and the first oil pocket 13, institute is oil-filled can exchange mutually, by the change of oil-filled amount in air cavity 12 and the first oil pocket 13, piston rod 2 is moved forward and backward, institute's inflated with nitrogen in compression or nitrogen chamber 11 or the second oil pocket 14, realizes nitrogen supercharging.Such as, be filled with the oil that can mutually exchange in nitrogen chamber 11 and the second oil pocket 14, inflated with nitrogen is distinguished in air cavity 12 and the first oil pocket 13, by the change of oil mass in nitrogen chamber 11 and the second oil pocket 14, piston rod 2 is moved forward and backward, the nitrogen in compressed air cell 12 or the first oil pocket 13, realizes nitrogen pressurization.
Working procedure, nitrogen inflating process is as follows, reversing valve operated 19 make P mouth communicate with A mouth, hydraulic oil enters the first oil pocket 13 from the first oil duct junction 9, piston rod moves right, chamber, nitrogen chamber 11 volume increases, and in nitrogen bottle 15, nitrogen enters nitrogen chamber 11 through breather check valve 16 from nitrogen inlet 7, until piston rod moves to right-hand member; Reversing valve operated 19 make P mouth communicate with B mouth, hydraulic oil enters the second oil pocket 14 from the second oil duct junction 10, piston rod 2 is moved to the left, in nitrogen chamber 11, nitrogen is compressed, now breather check valve 16 is closed, after certain pressure is got in nitrogen chamber 11, outgassing nonreturn valve 17 is opened, and nitrogen rushes nitrogen to nitrogen pot or nitrogen cylinder through outgassing nonreturn valve 17.And so forth, until nitrogen pressure in nitrogen pot or nitrogen cylinder is charged to specified pressure, rushes nitrogen and complete.Claimant is exemplified below: with nitrogen cylinder volume V=80L, Preliminary pressure-filled P
in advance=11MPa is that example illustrates that nitrogen cylinder fills workload;
Nitrogen chamber volume V
0=π r
2l=33.7L; In formula, r nitrogen chamber radius is 90mm, L stroke is 1325mm;
Nitrogen bottle volume V
1=45L;
Nitrogen bottle initial pressure P
0=10MPa, nitrogen bottle residual pressure P
eventually=1MPa;
Complete and fill nitrogen bottle residual nitrogen atmospheric pressure P for n time
n=[V
1/ (V
0+ V
1)]
n× P
0;
As calculated, P is worked as
nwhen=1, n ≈ 4, namely after 4 to-and-fro motion of pressurized cylinder piston, nitrogen bottle pressure drop is to 1MPa, and now in nitrogen bottle, 90% nitrogen is drawn out of and pours in nitrogen cylinder;
(P
0-P
eventually) V
1/ T=P
in advancevx/T, can obtain Vx=36L, and namely the nitrogen of 1 tank nitrogen bottle 90% can obtain volume after compressing is 36L, and pressure is the compressed nitrogen of 11MPa;
V/Vx=80/36=2.22, namely the nitrogen of 2.22 tank nitrogen bottles can meet the requirement of nitrogen cylinder nitrogen priming volume.
As can be seen here, change twice nitrogen bottle, piston adds up to-and-fro motion can complete filling of above-mentioned nitrogen cylinder nitrogen 9 ~ 10 times.
The above, it is only preferred embodiment of the present utility model, be not restriction the utility model being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solutions of the utility model content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present utility model, still belong to the protection domain of technical solutions of the utility model.
Claims (10)
1. nitrogen pressurization oil cylinder, it is characterized in that: comprise hydraulic jack and nitrogen compressor structure, piston rod (2) front end of hydraulic jack is connected with nitrogen compressor structure, nitrogen compressor structure has nitrogen chamber (11), and nitrogen compressor structure is provided with the nitrogen passing hole being communicated with nitrogen chamber (11), piston rod (2) drives nitrogen compressor structure to compress nitrogen chamber (11) interior nitrogen and by nitrogen passing hole output squeezing nitrogen.
2. nitrogen pressurization oil cylinder according to claim 1, it is characterized in that: described nitrogen compressor structure comprises nitrogen chamber cylinder barrel (101), the front end closure open rearward end in nitrogen chamber cylinder barrel (101), piston rod (2) front end is inserted from nitrogen chamber cylinder barrel (101) open rearward end, nitrogen chamber cylinder barrel (101) and piston rod (2) front end surround nitrogen chamber (11), and the wall in nitrogen chamber cylinder barrel (101) is provided with nitrogen passing hole.
3. nitrogen pressurization oil cylinder according to claim 1, it is characterized in that: described hydraulic jack comprises oil pocket cylinder barrel (102), oil pocket cylinder barrel (102) end closure front opening afterwards, the front opening place of oil pocket cylinder barrel (102) is fixedly connected with end socket (3), piston rod (2) is sleeved in the perforate at end socket (3) center, and piston rod (2) rear end is inserted in oil pocket cylinder barrel (102).
4. nitrogen pressurization oil cylinder according to claim 3, it is characterized in that: described end socket (3), oil pocket cylinder barrel (102) and piston rod (2) rear end surround the first oil pocket (13), piston rod (2) rear end and oil pocket cylinder barrel (102) surround the second oil pocket (14), oil pocket cylinder barrel (102) have the first oil duct junction (9) communicated with the first oil pocket (13), the second oil duct junction (10) communicated with the second oil pocket (14).
5. nitrogen pressurization oil cylinder according to claim 1, is characterized in that: described piston rod (2) front end is provided with nitrogen chamber piston (4), and piston rod (2) rear end is provided with gallery piston (5).
6. nitrogen pressurization oil cylinder according to claim 1, it is characterized in that: described hydraulic jack comprises oil pocket cylinder barrel (102), oil pocket cylinder barrel (102) end closure front opening afterwards, described nitrogen compressor structure comprises nitrogen chamber cylinder barrel (101), the front end closure open rearward end in nitrogen chamber cylinder barrel (101), nitrogen chamber cylinder barrel (101) is fixedly connected on end socket (3) both sides with oil pocket cylinder barrel (102) respectively in the mode that opening is relative, end socket (3), nitrogen chamber cylinder barrel (101) and piston rod (2) front end surround air cavity (12), nitrogen chamber cylinder barrel (101) has the vent (8) communicated with air cavity (12) inside.
7. nitrogen pressurization oil cylinder according to claim 1, is characterized in that: described nitrogen passing hole is made up of nitrogen outlet (6) and nitrogen inlet (7), and nitrogen outlet (6) and nitrogen inlet (7) communicate with nitrogen chamber (11) inside respectively.
8. a pressurizing system, it is characterized in that: comprise oil-servicing facilities (20), selector valve (19), nitrogen bottle (15) and the nitrogen pressurization oil cylinder described in any one of claim 1 ~ 7, nitrogen passing hole connects nitrogen bottle (15) and outgassing nonreturn valve (17) respectively by pipeline, the nitrogen outlet pipe at outgassing nonreturn valve (17) place is provided with barometer (18), pipeline between nitrogen passing hole and nitrogen bottle (15) is provided with breather check valve (16), hydraulic jack is connected with oil-servicing facilities (20) pipeline, pipeline between hydraulic jack and oil-servicing facilities (20) is provided with selector valve (19).
9. pressurizing system according to claim 8, it is characterized in that: described hydraulic jack comprises oil pocket cylinder barrel (102), oil pocket cylinder barrel (102) end closure front opening afterwards, the front opening place of oil pocket cylinder barrel (102) is fixedly connected with end socket (3), piston rod (2) is sleeved in the perforate at end socket (3) center, and piston rod (2) rear end is inserted in oil pocket cylinder barrel (102); Described end socket (3), oil pocket cylinder barrel (102) and piston rod (2) rear end surround the first oil pocket (13), piston rod (2) rear end and oil pocket cylinder barrel (102) surround the second oil pocket (14), oil pocket cylinder barrel (102) have the first oil duct junction (9) communicated with the first oil pocket (13), the second oil duct junction (10) communicated with the second oil pocket (14); First oil duct junction (9) is connected with selector valve (19) pipeline respectively with the second oil duct junction (10), and selector valve (19) is connected with oil-servicing facilities (20) pipeline.
10. pressurizing system according to claim 8, is characterized in that: described oil-servicing facilities (20) is oil hydraulic pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520170583.2U CN204572615U (en) | 2015-03-25 | 2015-03-25 | Nitrogen pressurization oil cylinder and pressurizing system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520170583.2U CN204572615U (en) | 2015-03-25 | 2015-03-25 | Nitrogen pressurization oil cylinder and pressurizing system thereof |
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| Publication Number | Publication Date |
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ID=53865259
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|---|---|---|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201949A (en) * | 2015-11-04 | 2015-12-30 | 长江大学 | Hydraulic piston reversing mechanism |
| CN110273868A (en) * | 2019-07-08 | 2019-09-24 | 江苏师范大学 | A kind of pressurization volume reduction hydraulic accumulator |
| CN113883123A (en) * | 2021-09-28 | 2022-01-04 | 安徽酉鸣八方科技有限公司 | Stable form of convenient adjustment of fluid pressure type low temperature liquid flow fills dress device |
-
2015
- 2015-03-25 CN CN201520170583.2U patent/CN204572615U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201949A (en) * | 2015-11-04 | 2015-12-30 | 长江大学 | Hydraulic piston reversing mechanism |
| CN110273868A (en) * | 2019-07-08 | 2019-09-24 | 江苏师范大学 | A kind of pressurization volume reduction hydraulic accumulator |
| CN110273868B (en) * | 2019-07-08 | 2020-12-25 | 江苏师范大学 | Pressure-increasing volume-reducing hydraulic accumulator |
| CN113883123A (en) * | 2021-09-28 | 2022-01-04 | 安徽酉鸣八方科技有限公司 | Stable form of convenient adjustment of fluid pressure type low temperature liquid flow fills dress device |
| CN113883123B (en) * | 2021-09-28 | 2023-06-23 | 安徽酉鸣八方科技有限公司 | Stable filling device with convenient adjustment of hydraulic low-temperature liquid flow |
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