CN210623001U - Oil cylinder type bidirectional oil-water conversion high-pressure water generating device - Google Patents
Oil cylinder type bidirectional oil-water conversion high-pressure water generating device Download PDFInfo
- Publication number
- CN210623001U CN210623001U CN201920935151.4U CN201920935151U CN210623001U CN 210623001 U CN210623001 U CN 210623001U CN 201920935151 U CN201920935151 U CN 201920935151U CN 210623001 U CN210623001 U CN 210623001U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- oil
- pressure
- pressure water
- water
- 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.)
- Active
Links
Images
Abstract
The utility model relates to a two-way oil water conversion water under high pressure generating device of oil cylinder formula, including oil hydraulic cylinder and high-pressure water jar, adopt logical axle piston rod, installed oil hydraulic cylinder piston and two high-pressure water jar pistons on the same piston rod to furthest's assurance under the restraint of hydro-cylinder uide bushing is multistage concentric, and each friction pair realizes that the friction is minimum, and each is sealed can realize only having small leakage rate, and the volume efficiency is close 100%, consequently the utility model discloses a total efficiency is far higher than the level of current high pressure water pump. Because the structure, the diameter and the stroke of the oil cylinder are not limited, the reciprocating working frequency is properly increased and still far less than the movement speed of the crank connecting rod plunger pump plunger, thereby greatly increasing the reliability and the service life of the oil cylinder. The oil hydraulic cylinder control part can use the principle of a high-pressure system in the conventional engineering hydraulic pressure, and elements are safe, reliable and mature; the control valve of the high-pressure water part can make the system simple and reliable only by designing and selecting the high-pressure and ultrahigh-pressure water valve, and the production and manufacturing process of the high-pressure water cylinder barrel is easy to solve by the prior art.
Description
Technical Field
The utility model relates to a two-way oil water conversion water under high pressure generating device of hydro-cylinder formula is applicable to the various big or small flow of high pressure, superhigh pressure, through the device of oil pressure transmission control conversion rivers output.
Background
The coal mine emulsion pump station and the emulsion pump execute the national coal industry standard MT/T88.2-2000, a three-plunger or five-plunger horizontal structure driven by a crankshaft connecting rod sliding block is adopted, and the emulsion pump is a high-pressure large-flow water pump; in addition, high pressure and ultrahigh pressure are also required in the industries of high pressure water jet cutting machines, liquid shot blasting machines, oil field water injection machines and the like, and water pumps with various discharge capacities are used for providing a high pressure water flow power source taking water as a medium. The utility model discloses a patent ZL201212460908 provides a system principle and method of oil water conversion variable emulsion pump station, the utility model provides an oil cylinder formula two-way oil water conversion water under high pressure generating device's structural design in its system, the device have volumetric efficiency, mechanical efficiency height, sealed reliable longe-lived, and the manufacturability is good, characteristics such as with low costs can realize high-pressure large-traffic rivers output.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a two-way oil water conversion water under high pressure generating device of hydro-cylinder formula, its reliability is high, and long service life is suitable for the big discharge capacity oil water conversion of high pressure.
The utility model adopts the technical proposal that: an oil cylinder type bidirectional oil-water conversion high-pressure water generating device comprises an oil pressure cylinder, a high-pressure water cylinder piston, a through shaft piston rod, a high-pressure water cylinder, an oil pressure cylinder piston, a clamping key cap, an oil pressure cylinder guide sleeve and a support; the hydraulic cylinder is a double-rod oil cylinder, two ends of a cylinder body of the hydraulic cylinder are welded with a first connecting flange, the cylinder body of the hydraulic cylinder is connected with a guide sleeve of the hydraulic cylinder through internal threads, and a connecting shaft piston rod is connected in the cylinder body through the guide sleeve of the hydraulic cylinder; the oil hydraulic cylinder piston is fixed by a left clamping key structure and a right clamping key structure and a through shaft piston rod, and the left clamping key structure and the right clamping key structure respectively consist of a clamping key, a clamping keycap and a clamping spring; two ends of the oil hydraulic cylinder are symmetrically connected with the high-pressure water cylinders through the first connecting flange, two ends of the through shaft piston rod are positioned in the high-pressure water cylinders, and the high-pressure water cylinder pistons are arranged at two end parts of the through shaft piston rod; two ends of the high-pressure water cylinder body are sealed by cylinder bottom plugs; the cylinder bottom plug is provided with a water inlet and a water outlet; high-pressure, low-friction and water-quality-resistant sealing devices are arranged among the through-shaft piston rod, the high-pressure water cylinder piston, the oil pressure cylinder guide sleeve and the oil pressure cylinder body, the oil pressure cylinder piston and the oil pressure cylinder body and the high-pressure water cylinder piston and the high-pressure water cylinder body.
The oil hydraulic cylinder and the high-pressure water cylinder use a through shaft piston rod, an oil hydraulic cylinder piston is fixedly arranged in the middle of the through shaft piston rod, high-pressure water cylinder pistons are fixedly arranged at two ends of the through shaft piston rod, and two end faces of the oil hydraulic cylinder piston in the middle of the through shaft piston rod are fixed by adopting a double-clamping-key structure, so that three pistons which synchronously move are fixed on the same shaft, and the coaxiality of three-stage fixed connection is ensured to the maximum extent; meanwhile, a left oil hydraulic cylinder guide sleeve and a right oil hydraulic cylinder guide sleeve are arranged in the oil hydraulic cylinder barrel body, the oil hydraulic cylinder barrel body is connected with the high-pressure water hydraulic cylinder barrel body in a butt joint mode through flanges, and two movement friction pairs are formed by the outer diameter of a through shaft piston rod and the inner hole of the oil hydraulic cylinder guide sleeve; the outer circles of the oil hydraulic cylinder piston and the high-pressure water cylinder piston, the inner diameter of the oil hydraulic cylinder body and the inner diameter of the high-pressure water cylinder body form three kinematic friction pairs, and five kinematic friction pairs are formed together; under the design structure of the two-way oil-water conversion high-pressure water generating device and the guarantee of the processing and installation precision of associated parts, the coaxiality of three-stage static fit and five-stage motion fit is realized to the maximum extent, so that the minimum friction resistance and the highest mechanical efficiency are realized during working.
And the high-pressure water cylinder body is connected with the bracket through a second connecting flange and a bolt.
The water inlet and outlet are respectively provided with a high-pressure or ultrahigh-pressure one-way water valve to form a rectification loop so as to control and realize automatic water inlet and bidirectional continuous high-pressure water output.
The high-pressure water cylinder body is sealed by adopting high pressure or ultrahigh pressure, and the inner wall of the cylinder body is plated with hard chromium, so that the high-pressure water cylinder is rust-proof, corrosion-resistant and wear-resistant.
The ratio of the actual hydraulic action area of the hydraulic cylinder 1 to the hydraulic action area of the high-pressure water cylinder is as follows: 1.5: 1-6: 1.
The high-pressure water cylinder rod cavity is a cavity, and the connecting flange II is provided with a groove communicated with the outside for observing the leakage of high-pressure water and playing a role in exhausting.
The utility model discloses all porose usefulness and axle are with sealed conventional variety of selecting for use that industry engineering hydro-cylinder reliability, life-span are all good.
The inner diameter of the oil hydraulic cylinder 1 is DuThe inner diameter of the high-pressure water cylinder body 4-1 is DsThe diameter of the through shaft piston rod is d, the ratio of the effective sectional area of the hydraulic cylinder 1 to the effective sectional area of the high-pressure cylinder body 4 is calculated by the formula:
The effective cross-sectional area ratio is also the ratio of oil pressure to water pressure, i.e. the increase ratio can be selected according to the maximum specific pressure required to be output, and the cylinder diameter Du、DsAnd d can be selected according to the flow to be output, the increase ratio can be generally selected from 1.5: 1-6: 1, the leakage part of the high-pressure water cylinder body which reciprocates for a long time can be discharged from the leakage groove of the second 4-2 part of the welding connecting flange of the 4-1 part of the high-pressure water cylinder body, and if the leakage amount exceeds a specified value, the sealing needs to be maintained and replaced.
The utility model has the advantages that: because its special project organization adopts logical axle piston rod, has installed hydraulic cylinder piston and two high-pressure water jar pistons on the same piston rod to furthest's assurance under the restraint of hydro-cylinder uide bushing is multistage concentric, and each friction pair realizes that the friction is minimum, and each is sealed can realize only having small leakage quantity, and the volumetric efficiency is close 100%, consequently the utility model discloses a total efficiency is far higher than the level of current high-pressure water pump. Because the structure, the diameter and the stroke of the oil cylinder are not limited, the reciprocating working frequency is properly increased and still far less than the movement speed of the crank connecting rod plunger pump plunger, thereby greatly increasing the reliability and the service life of the oil cylinder. The oil hydraulic cylinder control part in the middle of the device can use the principle of a high-pressure system in the conventional engineering hydraulic pressure, and elements are safe, reliable and mature; the control valve of the high-pressure water part can make the system simple and reliable only by designing and selecting a high-pressure and ultrahigh-pressure water valve. The high-pressure hydraulic cylinder barrel is produced by selecting proper wall thickness and material according to pressure requirements, and the production and manufacturing process is easy to solve by the prior art.
Drawings
Fig. 1 is a longitudinal section schematic diagram of an oil cylinder type bidirectional oil-water conversion high-pressure water generating device.
Fig. 2 is a schematic structural diagram of an embodiment of the oil cylinder type bidirectional oil-water conversion high-pressure water generating device.
In the figure, 1, an oil pressure cylinder, 1-1, an oil pressure cylinder barrel, 1-2, a first connecting flange, 2, a high-pressure water cylinder piston, 3, a through shaft piston rod, 4, a high-pressure water cylinder, 4-1, a high-pressure water cylinder body, 4-2, a second connecting flange, 5, an oil pressure cylinder piston, 6, a clamping key, 7, a clamping keycap, 8, an oil pressure cylinder guide sleeve, 9, a support, 10, a cylinder bottom plug, 11, a clamping spring, A, B, an oil inlet and outlet, C, D, an water inlet and outlet, and d1、d2、d3、d4A high pressure one way water valve.
Detailed Description
As shown in fig. 1 and 2, the hydraulic cylinder comprises an oil hydraulic cylinder 1, a high-pressure water cylinder piston 2, a through shaft piston rod 3, a high-pressure water cylinder 4, an oil hydraulic cylinder piston 5, a clamp key 6, a clamp key cap 7, an oil hydraulic cylinder guide sleeve 8 and a support 9; the hydraulic cylinder 1 is a double-rod oil cylinder, two ends of a cylinder body 1-1 of the hydraulic cylinder are welded with flanges I1-2, the cylinder body 1-1 of the hydraulic cylinder is connected with a guide sleeve 8 of the hydraulic cylinder through internal threads, and the cylinder body is connected with a through shaft piston rod 3 through the guide sleeve 8 of the hydraulic cylinder; the oil hydraulic cylinder piston 5 is fixed with the through shaft piston rod 3 by a left clamping key structure and a right clamping key structure, and the left clamping key structure and the right clamping key structure respectively consist of a clamping key 6, a clamping key cap 7 and a clamping spring 11; two ends of the oil hydraulic cylinder 1 are symmetrically connected with high-pressure water cylinders 4 through connecting flanges 1-2, two ends of a through shaft piston rod 3 are positioned in the high-pressure water cylinders 4, and high-pressure water cylinder pistons 2 are arranged at two end parts of the through shaft piston rod 3; two ends of the high-pressure water cylinder body 4-1 are sealed by cylinder bottom plugs 10; the cylinder bottom plug 10 is provided with a water inlet and outlet C, D; high-pressure, low-friction and water-quality-resistant sealing devices are arranged among the through-shaft piston rod 3, the high-pressure water cylinder piston 2, the oil pressure cylinder guide sleeve 8, the oil pressure cylinder barrel 1-1, the oil pressure cylinder piston 5, the oil pressure cylinder barrel 1-1 and the high-pressure water cylinder piston 2 and the high-pressure water cylinder barrel 4-1.
The oil hydraulic cylinder 1 and the high-pressure water cylinder 4 use a through shaft piston rod 3, an oil hydraulic cylinder piston 5 is fixedly arranged in the middle of the through shaft piston rod 3, high-pressure water cylinder pistons 2 are fixedly arranged at two ends of the through shaft piston rod 3, and two end faces of the oil hydraulic cylinder piston 5 in the middle of the through shaft piston rod 3 are fixed by adopting a double-clamping-key structure, so that three pistons which move synchronously are fixed on the same shaft, and the coaxiality of three-stage fixed connection is ensured to the maximum extent; meanwhile, a left oil hydraulic cylinder guide sleeve 8 and a right oil hydraulic cylinder guide sleeve 8 are arranged in the oil hydraulic cylinder barrel 1-1 and are connected with a high-pressure water cylinder body 4-1 in a butt joint mode through flanges, and two moving friction pairs are formed by the outer diameter of the through shaft piston rod 3 and the inner hole of the oil hydraulic cylinder guide sleeve 8; the excircle of the oil hydraulic cylinder piston 5 and the excircle of the high-pressure water cylinder piston 2, the inner diameter of the oil hydraulic cylinder body 1-1 and the inner diameter of the high-pressure water cylinder body 4-1 form three kinematic friction pairs, and five kinematic friction pairs are formed together; under the design structure of the two-way oil-water conversion high-pressure water generating device and the guarantee of the processing and installation precision of associated parts, the coaxiality of three-stage static fit and five-stage motion fit is realized to the maximum extent, so that the minimum friction resistance and the highest mechanical efficiency are realized during working.
The high-pressure water cylinder body 4-1 is connected with the support 9 through a second connecting flange 4-2 and a bolt.
As shown in FIG. 2, the water inlet/outlet C, D is respectively provided with a high pressureOr ultrahigh pressure one-way water valve d1、d2、d3、d4Form a rectification loop to control and realize automatic water inlet and bidirectional continuous high-pressure water output.
The high-pressure water cylinder body 4-1 is sealed by adopting high-pressure or ultrahigh-pressure waterproof sealing, and the inner wall of the cylinder body is plated with hard chromium, so that the cylinder body is rust-proof, corrosion-resistant and wear-resistant.
The ratio of the actual hydraulic action area of the hydraulic cylinder 1 to the hydraulic action area of the high-pressure water cylinder 4 is: 1.5: 1-6: 1.
The rod cavity of the high-pressure water cylinder 4 is a cavity, and the connecting flange II 4-2 is provided with a groove communicated with the outside for observing the leakage of high-pressure water and playing a role in exhausting.
The utility model discloses all porose usefulness and axle are with sealed conventional variety of selecting for use that industry engineering hydro-cylinder reliability, life-span are all good.
The inner diameter of the oil hydraulic cylinder 1 is DuThe inner diameter of the high-pressure water cylinder body 4-1 is DsThe diameter of the through shaft piston rod is d, the ratio of the effective sectional area of the hydraulic cylinder 1 to the effective sectional area of the high-pressure cylinder body 4 is calculated by the formula:
The effective cross-sectional area ratio is also the ratio of oil pressure to water pressure, i.e. the increase ratio can be selected according to the maximum specific pressure required to be output, and the cylinder diameter Du、DsAnd d can be selected according to the flow to be output, the increase ratio can be generally selected from 1.5: 1-6: 1, the leakage part of the high-pressure water cylinder body which reciprocates for a long time can be discharged from the leakage groove of the second 4-2 part of the welding connecting flange of the 4-1 part of the high-pressure water cylinder body, and if the leakage amount exceeds a specified value, the sealing needs to be maintained and replaced.
Claims (7)
1. An oil cylinder type two-way oil-water conversion high-pressure water generating device is characterized by comprising an oil cylinder (1), a high-pressure water cylinder piston (2), a through shaft piston rod (3), a high-pressure water cylinder (4), an oil cylinder piston (5), a clamping key (6), a clamping key cap (7), an oil cylinder guide sleeve (8) and a support (9); the oil hydraulic cylinder (1) is a double-rod oil cylinder, two ends of a cylinder body (1-1) of the oil hydraulic cylinder are welded with flanges I (1-2), the cylinder body (1-1) of the oil hydraulic cylinder is connected with an oil hydraulic cylinder guide sleeve (8) through internal threads, and the cylinder body is connected with a through shaft piston rod (3) through the oil hydraulic cylinder guide sleeve (8); the oil hydraulic cylinder piston (5) is fixed with the through shaft piston rod (3) by a left clamping key structure and a right clamping key structure, and the left clamping key structure and the right clamping key structure respectively consist of a clamping key (6), a clamping keycap (7) and a clamping spring (11); the two ends of the oil hydraulic cylinder (1) are symmetrically connected with high-pressure water cylinders (4) through connecting flanges I (1-2), the two ends of the through shaft piston rod (3) are located in the high-pressure water cylinders (4), and the high-pressure water cylinder pistons (2) are installed at the two ends of the through shaft piston rod (3); two ends of the high-pressure water cylinder body (4-1) are sealed by a cylinder bottom plug (10); the cylinder bottom plugs (10) are respectively provided with water inlets and water outlets C, D; high-pressure-resistant, low-friction and water-quality-resistant sealing devices are arranged between the through-shaft piston rod (3) and the high-pressure water cylinder piston (2) and the oil pressure cylinder guide sleeve (8), between the oil pressure cylinder guide sleeve (8) and the oil pressure cylinder body (1-1), between the oil pressure cylinder piston (5) and the oil pressure cylinder body (1-1) and between the high-pressure water cylinder piston (2) and the high-pressure water cylinder body (4-1).
2. The oil cylinder type two-way oil-water conversion high-pressure water generating device is characterized in that the oil cylinder (1) and the high-pressure water cylinder (4) use a through shaft piston rod (3), an oil cylinder piston (5) is fixedly arranged in the middle of the through shaft piston rod (3), high-pressure water cylinder pistons (2) are fixedly arranged at two ends of the through shaft piston rod, and two end faces of the oil cylinder piston (5) in the middle of the through shaft piston rod (3) are fixed by adopting a double-clamping-key structure, so that three pistons which move synchronously are fixed on the same shaft, and the three-level fixed connection is ensured to be coaxial to the maximum extent; meanwhile, a left oil hydraulic cylinder guide sleeve and a right oil hydraulic cylinder guide sleeve (8) are arranged in an oil hydraulic cylinder barrel body (1-1) and connected with a high-pressure water cylinder body (4-1) in a butt joint mode through flanges, and two movement friction pairs are formed by the outer diameter of a through shaft piston rod (3) and the inner hole of the oil hydraulic cylinder guide sleeve (8); the outer circles of the oil hydraulic cylinder piston (5) and the high-pressure water cylinder piston (2) and the inner diameters of the oil hydraulic cylinder body (1-1) and the high-pressure water cylinder body (4-1) form three kinematic friction pairs, and five kinematic friction pairs are formed together; under the design structure of the two-way oil-water conversion high-pressure water generating device and the guarantee of the processing and installation precision of associated parts, the coaxiality of three-stage static fit and five-stage motion fit is realized to the maximum extent, so that the minimum friction resistance and the highest mechanical efficiency are realized during working.
3. The oil cylinder type bidirectional oil-water conversion high-pressure water generating device as claimed in claim 1, wherein the high-pressure water cylinder body (4-1) is connected with the bracket (9) through a second connecting flange (4-2) and a bolt.
4. The oil cylinder type two-way oil-water conversion high-pressure water generating device as claimed in claim 1, wherein the water inlet and outlet C, D are respectively provided with a high-pressure or ultrahigh-pressure one-way water valve (d)1）、（d2）、（d3）、（d4) Form a rectification loop to control and realize automatic water inlet and bidirectional continuous high-pressure water output.
5. The oil cylinder type bidirectional oil-water conversion high-pressure water generating device as claimed in claim 1, wherein the high-pressure water cylinder body (4-1) is sealed by high pressure or ultrahigh pressure, and the inner wall of the cylinder body is plated with hard chrome to prevent corrosion and resist wear.
6. The cylinder type bi-directional oil-water conversion high-pressure water generator according to claim 1, wherein the ratio of the actual oil pressure acting area of the oil cylinder (1) to the water pressure acting area of the high-pressure water cylinder (4) is: 1.5: 1-6: 1.
7. The oil cylinder type bidirectional oil-water conversion high-pressure water generating device as claimed in claim 1, wherein the rod cavity of the high-pressure water cylinder (4) is a cavity, and the connecting flange II (4-2) is provided with a groove communicated with the outside for observing the leakage of high-pressure water and exhausting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920935151.4U CN210623001U (en) | 2019-06-20 | 2019-06-20 | Oil cylinder type bidirectional oil-water conversion high-pressure water generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920935151.4U CN210623001U (en) | 2019-06-20 | 2019-06-20 | Oil cylinder type bidirectional oil-water conversion high-pressure water generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210623001U true CN210623001U (en) | 2020-05-26 |
Family
ID=70765949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920935151.4U Active CN210623001U (en) | 2019-06-20 | 2019-06-20 | Oil cylinder type bidirectional oil-water conversion high-pressure water generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210623001U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219790A (en) * | 2019-06-20 | 2019-09-10 | 徐州市全球通精密钢管有限公司 | A kind of two-way grease conversion high pressure water generating device of cylinder type |
| CN117189545A (en) * | 2023-11-08 | 2023-12-08 | 河南豫氢装备有限公司 | Reducing piston rod suitable for liquid-driven compressor and mounting method thereof |
-
2019
- 2019-06-20 CN CN201920935151.4U patent/CN210623001U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219790A (en) * | 2019-06-20 | 2019-09-10 | 徐州市全球通精密钢管有限公司 | A kind of two-way grease conversion high pressure water generating device of cylinder type |
| CN117189545A (en) * | 2023-11-08 | 2023-12-08 | 河南豫氢装备有限公司 | Reducing piston rod suitable for liquid-driven compressor and mounting method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20230138582A1 (en) | Cover, fluid end and plunger pump | |
| US20220316461A1 (en) | Plunger, hydraulic end and plunger pump | |
| RU52125U1 (en) | ELECTRIC HYDRAULIC DRIVE PUMP UNIT | |
| CN210623001U (en) | Oil cylinder type bidirectional oil-water conversion high-pressure water generating device | |
| CN102094780A (en) | Hydraulic slurry pump | |
| US10612531B2 (en) | Hydraulically-driven double-acting mud pump | |
| CN105221494A (en) | A kind of oil drives pressurized cylinder | |
| CN105874156A (en) | Oil-submersible linear motor oil extraction system | |
| CN102032170B (en) | Isolating device for plunger slurry pump | |
| CN115405514A (en) | Fluid end and plunger pump | |
| CN104019019A (en) | Energy storage type linear motor capsule pump | |
| CN110219790A (en) | A kind of two-way grease conversion high pressure water generating device of cylinder type | |
| CN201723394U (en) | Hydraulic motive power high-pressure pump | |
| CN103104433B (en) | Large-discharge built-in automatic reversing hydraulic plunger pump | |
| CN201671897U (en) | Piston-type deep-sea water pressure compensation energy accumulator | |
| CN211231094U (en) | Double-piston rod type hydraulic oil cylinder | |
| CN109236773A (en) | A kind of high-flow hydraulic control one-way valve | |
| CN205078519U (en) | Oil drives pressurized cylinder | |
| CN214887648U (en) | Plunger, hydraulic end and plunger pump | |
| CN113513465B (en) | Oil cylinder side buffering structure of liquid-driven piston compressor and liquid-driven piston compressor | |
| CN201851321U (en) | Electric submersible bidirectional tubular oil-well pump | |
| CN204942996U (en) | A kind of lubricant grease pumping system | |
| CN208900338U (en) | A kind of piston type reciprocating booster pump | |
| CN203051015U (en) | Large-displacement built-in automatic reverse hydraulic plunger pump | |
| CN213711466U (en) | Oil cylinder type bidirectional oil-water conversion water flow increasing generation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200909 Address after: No.9, KangQian Road, Xuzhou high tech Industrial Development Zone, Xuzhou City, Jiangsu Province Patentee after: XUZHOU JINDING HENGLI HYDRAULIC PARTS Co.,Ltd. Address before: 221000 the third industrial park, economic development zone, Tongshan District, Xuzhou City, Jiangsu Province Co-patentee before: XUZHOU MINGSHUO MACHINERY TECHNOLOGY Co.,Ltd. Patentee before: XUZHOU GLOBAL PRECISION STEEL TUBE Co.,Ltd. |
|
| TR01 | Transfer of patent right |