CN114455530B - Hand-held type liquid ration adds device - Google Patents
Hand-held type liquid ration adds device Download PDFInfo
- Publication number
- CN114455530B CN114455530B CN202210037110.XA CN202210037110A CN114455530B CN 114455530 B CN114455530 B CN 114455530B CN 202210037110 A CN202210037110 A CN 202210037110A CN 114455530 B CN114455530 B CN 114455530B
- Authority
- CN
- China
- Prior art keywords
- piston
- oil
- pipe
- air
- outlet pipe
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 32
- 238000001914 filtration Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 4
- 238000005381 potential energy Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 74
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010723 turbine oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
- B67D7/0205—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants by manually operable pumping apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/08—Arrangements of devices for controlling, indicating, metering or registering quantity or price of liquid transferred
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/38—Arrangements of hoses, e.g. operative connection with pump motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/42—Filling nozzles
- B67D7/44—Filling nozzles automatically closing
- B67D7/46—Filling nozzles automatically closing when liquid in container to be filled reaches a predetermined level
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention discloses a handheld liquid quantitative adding device which comprises a shell and a vent pipe, wherein the shell is provided with an oil passing cavity and an air cavity, two sides of the oil passing cavity are respectively communicated with an oil inlet pipe and an oil outlet pipe, the air cavity and the oil inlet pipe are both communicated with the vent pipe, the vent pipe is provided with an air inlet, the shell is provided with a movable piston, one end of the movable piston is arranged in the oil passing cavity, the other end of the movable piston is arranged in the air cavity, and the movable piston is movably connected with the shell to control the opening and closing of the oil outlet pipe. The invention can quantitatively add according to the adding requirement, has accurate adding and convenient adding, and can be operated by a single person.
Description
Technical Field
The invention belongs to the field of oiling equipment, and particularly relates to a handheld liquid quantitative adding device.
Background
The main functions of the hydraulic power station, the thermal power plant and the large and medium-sized pump stations are to add (or pour) lubricating and cooling turbine oil to the bearing oil grooves of the hydraulic generator set or the pump set; the expansion water tank of the open type circulating cooling water supply system of the hydroelectric generating set or the pump group also needs to be added or supplemented with cooling water regularly. At present, most of turbine oil adding modes of bearing oil tanks of hydropower stations, thermal power plants and large and medium-sized pump stations and cooling water adding modes of open type circulating cooling water supply systems still adopt manual and semi-manual operation modes formed several decades ago. For example, the oil tank is added with oil, a temporary oil tank, an oil pump and a temporary pipeline are generally required to be arranged, more than 2 people work cooperatively through interphones, and the defects that the degree of automation is low, the equipment is inconvenient to carry, the workload of operators is large, the addition amount is not accurate enough, excessive liquid is easy to add, the safety is influenced, the production is civilized, and the like are caused.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and provides a handheld liquid quantitative adding device which can quantitatively add according to the adding requirement, is accurate in adding, is convenient to add and can be operated by a single person.
In order to solve the technical problems, the invention adopts the following technical scheme:
A hand-held type liquid ration adds device, its characterized in that: the oil inlet pipe is provided with an air inlet, the shell is provided with a movable piston, one end of the movable piston is arranged in the oil passing cavity, the other end of the movable piston is arranged in the air cavity, and the movable piston is movably connected with the shell to control the opening and closing of the oil outlet pipe. When oil is added, the piston is pressed down to open the oil inlet pipe, the oil supply device is connected with the oil inlet pipe, oil flows out of the oil outlet pipe after passing through the oil cavity, low pressure is generated when the oil flows through the joint of the vent pipe and the oil inlet pipe at a high speed due to the fact that the oil is provided by the oil supply device, air in the vent pipe is sucked, meanwhile, air in the vent pipe can be supplemented through the air inlet, air pressure in the air cavity is consistent with external air pressure, buoyancy received by the piston, pressure in the air cavity, self gravity and the like reach balance, the piston is enabled to be in the shell, oil outlet pipe oil is enabled to be smooth, and when the oil in the oil filling groove is higher than the air inlet, the air pressure in the vent pipe and the air pressure in the air cavity are reduced, so that the piston moves upwards to seal the oil outlet pipe. Through the position of control air inlet, realize the fixed point ration of fluid and add, can accurate interpolation, add conveniently, add effectually, reduce operating personnel work load, improve the operation operational environment, improve the degree of automation of relevant operation maintenance operation and the accuracy of adding the volume control, avoid causing a plurality of drawbacks such as liquid "running off drip" because of adding excessive, provide technical guarantee for safe, civilized production.
Further, be equipped with adjustable spring between casing and the removal piston, adjustable spring drive removes the piston and closes the oil outlet pipe, and the casing is equipped with flexible stopper, and the removal of the spacing removal piston of flexible stopper. Through the cooperation of adjustable spring and flexible spacing stopper, can make quantitative interpolation device be suitable for the fluid of different grade type, improve interpolation device's universality. When the piston is pressed down, the adjustable spring is compressed to store elastic potential energy, at the moment, the piston is unbalanced in stress and moves upwards, and the piston is clamped by the flexible limiting block in a limiting mode, so that the piston is balanced in stress and does not seal the oil outlet pipe, when the oil liquid seals the air inlet, the air pressure of the air cavity is reduced, and the piston moves upwards under the action of the spring and the air pressure to force the flexible limiting block to deform to release limiting. Because the adjustable spring can adjust elasticity, can guarantee that flexible stopper can both limit the piston and make the oil outlet pipe open when adopting different liquid, and the piston moves up and makes the oil outlet pipe close when the air inlet seals air cavity atmospheric pressure and reduces. Meanwhile, the arrangement of the adjustable spring is convenient for the oil outlet pipe to be in a normally closed state.
Further, the movable piston comprises a first piston and a second piston, the first piston is arranged in the oil passing cavity, the second piston is arranged in the air cavity, a connecting rod is arranged between the first piston and the second piston, the second piston is provided with a limiting protruding portion, and the flexible limiting block is clamped on the limiting protruding portion.
Further, the shell is provided with a pressing rod which is connected with the second piston. The second piston and the first piston can be conveniently pressed down by the arrangement of the pressing rod, so that the use is convenient.
Further, the flexible limiting block is provided with a guide surface. Through the guiding surface of slope type, can make things convenient for pushing down of piston, the piston after being convenient for spacing pushing down of flexible stopper.
Further, the vent pipe is provided with scale marks. Through the setting of scale mark, can be convenient for refuel operating personnel grasp the fuel charge, the use of the quantitative interpolation device of being convenient for.
Further, the vent pipe is movably connected with the air inlet. Through the height of adjusting the air inlet to can correspond the height of adjusting the back liquid level of interpolation, make to add more accurate, it is more convenient.
Further, the connection part of the oil inlet pipe and the vent pipe is provided with an oil filtering sealing device for isolating liquid from entering the vent pipe. The oil filtering sealing device is used for isolating liquid but not air, so that the liquid is prevented from rushing into the vent pipe.
Further, the housing is provided with a handle. The handle is convenient to hold.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
According to the invention, the oil outlet pipe is closed by the air pressure difference, so that accurate quantitative oiling is realized, the whole oiling process is simple, the workload of operators is reduced, the operation working environment is improved, the degree of automation of related operation maintenance operation and the accuracy of additive amount control are improved, various defects of liquid leakage caused by excessive addition are avoided, and technical support is provided for safe and civilized production.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of a hand-held liquid dosing device according to the present invention;
FIG. 2 is a schematic view showing the structure of the quantitative adding device in the invention;
fig. 3 is an enlarged view of the structure at a in fig. 2.
In the figure, 1-a housing; 2-a vent pipe; 3-passing through the oil cavity; 4-air chambers; 5-an oil inlet pipe; 6, an oil outlet pipe; 7-an air inlet; 9-an adjustable spring; 10-a flexible limiting block; 11-a first piston; 12-a second piston; 13-connecting rods; 14-limiting protruding parts; 15-a compression bar; 16-a guide surface; 17-scale marks; 18-an oil filtering sealing device; 19-handle.
Detailed Description
As shown in fig. 1 to 3, the hand-held liquid quantitative adding device of the invention comprises a housing 1 and a vent pipe 2, wherein the housing 1 is provided with an oil passing cavity 3 and an air cavity 4, two sides of the oil passing cavity 3 are respectively communicated with an oil inlet pipe 5 and an oil outlet pipe 6, the air cavity 4 and the oil inlet pipe 5 are both communicated with the vent pipe 2, the vent pipe 2 is provided with an air inlet 7, the housing 1 is provided with a movable piston, one end of the movable piston is arranged in the oil passing cavity 3, the other end of the movable piston is arranged in the air cavity 4, and the movable piston is movably connected with the housing 1 to control the opening and closing of the oil outlet pipe 6. When oil is added, the piston is pressed down to open the oil inlet pipe 5, the oil supply device is connected to realize oil inlet of the adding device, then the oil flows out of the oil outlet pipe 6 after passing through the oil cavity 3, low pressure is generated when the oil flows through the joint of the breather pipe 2 and the oil inlet pipe 5 at a high speed due to the fact that the oil is provided by the oil supply device, air in the breather pipe 2 is sucked in, meanwhile, air in the breather pipe 2 can be supplemented through the air inlet 7, air pressure in the air cavity 4 is consistent with air pressure of the outside air, buoyancy received by the piston, pressure in the air cavity 4, self gravity and the like reach balance at the moment, the piston is in the shell 1, smooth oil outlet of the oil outlet pipe 6 is ensured to be still, and when the oil in the oil filling groove is higher than the air inlet 7, the air pressure in the breather pipe 2 and the air cavity 4 are reduced, and the piston moves upwards to seal the oil outlet pipe 6. Through the position of control air inlet 7, realize the fixed point ration of fluid and add, can accurate interpolation, add conveniently, add effectually, reduce operating personnel work load, improve the operation operational environment, improve the degree of automation of relevant operation maintenance operation and the accuracy of adding the volume control, avoid causing a plurality of drawbacks such as liquid "running off drip" because of adding excessive, provide technical support for safe, civilized production.
An adjustable spring 9 is arranged between the shell 1 and the movable piston, the adjustable spring 9 drives the movable piston to close the oil outlet pipe 6, the shell 1 is provided with a flexible limiting block 10, and the flexible limiting block 10 limits movement of the movable piston. Through the cooperation of adjustable spring 9 and flexible spacing stopper, can make quantitative interpolation device be suitable for different grade type fluid, improve interpolation device's universality. When the piston is pressed down, the adjustable spring 9 is compressed to store elastic potential energy, at the moment, the piston is unbalanced in stress and moves upwards, the piston is clamped by the flexible limiting block 10 in a limiting mode, the piston is balanced in stress and does not seal the oil outlet pipe 6, when the oil seals the air inlet 7, the air pressure of the air cavity 4 is reduced, and the piston moves upwards under the action of the spring and the air pressure to force the flexible limiting block 10 to deform to release limiting. Because the adjustable spring 9 can adjust elasticity, can guarantee that flexible stopper 10 can both limit the piston and make oil outlet pipe 6 open when adopting different liquid, and the piston moves up and makes oil outlet pipe 6 closed when air inlet 7 seals air cavity 4 atmospheric pressure and reduces. Meanwhile, the arrangement of the adjustable spring 9 is also convenient for the oil outlet pipe 6 to be in a normally closed state.
The movable piston comprises a first piston 11 and a second piston 12, the first piston 11 is arranged in the oil passing cavity 3, the second piston 12 is arranged in the air cavity 4, a connecting rod 13 is arranged between the first piston 11 and the second piston 12, the second piston 12 is provided with a limiting protruding portion 14, and the flexible limiting block 10 is clamped on the limiting protruding portion 14.
The housing 1 is provided with a pressure lever 15, the pressure lever 15 being connected to the second piston 12. The arrangement of the pressing rod 15 can conveniently press down the second piston 12 and the first piston 11, so that the use is convenient.
The flexible stopper 10 is provided with a guide surface 16. Through the guiding surface 16 of slope type, can make things convenient for the pushing down of piston, the piston after the spacing pushing down of flexible stopper 10 of being convenient for.
The vent pipe 2 is provided with graduation marks 17. Through the setting of scale mark 17, can be convenient for refuel operating personnel grasp the fuel charge, the use of the quantitative interpolation device of being convenient for.
The breather pipe 2 is movably connected with the air inlet 7. Through the height of adjusting the air inlet to can correspond the height of adjusting the back liquid level of interpolation, make to add more accurate, it is more convenient.
The connection part of the oil inlet pipe 5 and the vent pipe 2 is provided with an oil filtering sealing device 18 for isolating liquid from entering the vent pipe 2. Liquid is isolated from air by the oil filter seal 18 and liquid up-rushing into the breather pipe 2 is avoided.
The housing 1 is provided with a handle 19. Is convenient to hold by the arrangement of the handle 19.
According to the invention, the oil outlet pipe 6 is closed by the air pressure difference, so that accurate quantitative oiling is realized, the whole oiling process is simple, the workload of operators is reduced, the operation working environment is improved, the automation degree of related operation maintenance operation and the accuracy of additive amount control are improved, various defects of liquid leakage caused by excessive addition are avoided, and technical support is provided for safe and civilized production.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications and the like made on the basis of the present invention to solve the substantially same technical problems and achieve the substantially same technical effects are included in the scope of the present invention.
Claims (5)
1. A hand-held type liquid ration adds device, its characterized in that: the oil inlet pipe and the oil outlet pipe are respectively communicated with the two sides of the oil passing cavity, the air cavity and the oil outlet pipe are both communicated with the air pipe, the air pipe is provided with an air inlet, the shell is provided with a movable piston, one end of the movable piston is arranged in the oil passing cavity, the other end of the movable piston is arranged in the air cavity, and the movable piston is movably connected with the shell to control the switch of the oil outlet pipe;
an adjustable spring is arranged between the shell and the movable piston, the adjustable spring drives the movable piston to close the oil outlet pipe, the shell is provided with a flexible limiting block, and the flexible limiting block limits the movement of the movable piston;
The movable piston comprises a first piston and a second piston, the first piston is arranged in the oil passing cavity, the second piston is arranged in the air cavity, a connecting rod is arranged between the first piston and the second piston, the second piston is provided with a limiting protruding part, and the flexible limiting block is clamped on the limiting protruding part;
the shell is provided with a pressing rod which is connected with the second piston;
an oil filtering sealing device is arranged at the joint of the oil outlet pipe and the vent pipe and used for isolating liquid from entering the vent pipe;
When oil is added, the piston is pressed down to open the oil inlet pipe, the oil supply device is connected with the oil inlet pipe to realize oil inlet of the adding device, and then the oil flows out of the oil outlet pipe after passing through the oil cavity;
When the piston is pressed down, the adjustable spring is compressed to store elastic potential energy, at the moment, the piston is unbalanced in stress and moves upwards, the piston is clamped by the flexible limiting block in a limiting mode, so that the piston is balanced in stress and does not seal the oil outlet pipe, when the oil liquid seals the air inlet, the air pressure of the air cavity is reduced, and the piston moves upwards under the action of the adjustable spring and the air pressure to force the flexible limiting block to deform to release limiting; the adjustable spring can adjust the elasticity, so that the flexible limiting blocks can limit the piston when different liquids are adopted, the oil outlet pipe is opened, and when the air pressure of the air cavity of the air inlet is reduced, the piston moves upwards, so that the oil outlet pipe is closed; meanwhile, the arrangement of the adjustable spring is convenient for the oil outlet pipe to be in a normally closed state.
2. A hand-held liquid dosing device according to claim 1, wherein: the flexible limiting block is provided with a guide surface.
3. A hand-held liquid dosing device according to claim 1, wherein: the vent pipe is provided with scale marks.
4. A hand-held liquid dosing device according to claim 1, wherein: the breather pipe is movably connected with the air inlet.
5. A hand-held liquid dosing device according to claim 1, wherein: the shell is provided with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210037110.XA CN114455530B (en) | 2022-01-13 | 2022-01-13 | Hand-held type liquid ration adds device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210037110.XA CN114455530B (en) | 2022-01-13 | 2022-01-13 | Hand-held type liquid ration adds device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114455530A CN114455530A (en) | 2022-05-10 |
| CN114455530B true CN114455530B (en) | 2024-07-09 |
Family
ID=81410264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210037110.XA Active CN114455530B (en) | 2022-01-13 | 2022-01-13 | Hand-held type liquid ration adds device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114455530B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN217103058U (en) * | 2022-01-13 | 2022-08-02 | 中国电建集团华东勘测设计研究院有限公司 | Hand-held type liquid ration adds device |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR663248A (en) * | 1928-10-31 | 1929-08-19 | Improvements to installations used to deliver liquids in determined quantities | |
| DE936102C (en) * | 1941-11-05 | 1955-12-07 | Aeg | Device for maintaining the oil level in the load switch vessels of step transformers |
| FR2264967A1 (en) * | 1974-03-19 | 1975-10-17 | Moiroux Auguste | Lubrication device for a free piston engine - has pneumatic cylinder controlling oil pumping piston |
| CA2341659C (en) * | 2001-03-20 | 2007-08-07 | Hygiene-Technik Inc. | Liquid dispenser for dispensing foam |
| CN102381512B (en) * | 2010-09-03 | 2015-01-21 | 北京红海科技开发有限公司 | Container for filling paste |
| CN201954235U (en) * | 2011-04-21 | 2011-08-31 | 钱玉芳 | Glycerol lubricating device |
| CN202670221U (en) * | 2012-08-08 | 2013-01-16 | 黑龙江八一农垦大学 | Storage bucket for household edible vegetable oil |
| US9642397B2 (en) * | 2014-03-31 | 2017-05-09 | Westfield Limited (Ltd.) | Personal vaporizer with liquid supply by suction |
| CN207985748U (en) * | 2018-03-02 | 2018-10-19 | 云南浩彩新材料有限公司 | A kind of water-based ink drainage device |
| CN109668040A (en) * | 2019-01-08 | 2019-04-23 | 深圳大学 | Air pressure electronics installs lube plant additional to one kind automatically at regular time and quantity |
| CN214063902U (en) * | 2021-01-05 | 2021-08-27 | 四川中泽油田技术服务有限责任公司 | Integrated high-low pressure limiting valve |
-
2022
- 2022-01-13 CN CN202210037110.XA patent/CN114455530B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN217103058U (en) * | 2022-01-13 | 2022-08-02 | 中国电建集团华东勘测设计研究院有限公司 | Hand-held type liquid ration adds device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114455530A (en) | 2022-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206315749U (en) | Oil storage tank is stirred device automatically | |
| CN114455530B (en) | Hand-held type liquid ration adds device | |
| CN103557990B (en) | The all-round calibrating installation of a kind of manometer equipment | |
| CN217103058U (en) | Hand-held type liquid ration adds device | |
| CN204985956U (en) | Cylinder type air valve | |
| CN202108653U (en) | Paddle regulator for axial-flow water pump turbine | |
| CN114517884B (en) | Handcart-type liquid automatic adding integrated device | |
| CN212005121U (en) | Oil injection device | |
| CN114352464A (en) | Caisson/cylinder linkage multi-physical-quantity drainage energy storage system and control method | |
| CN206206980U (en) | Pneumatic lubrication gasoline pump | |
| CN201650591U (en) | Integrated pressure oil source device for hydraulic control equipment of vertical axis wind-driven generator | |
| CN205315203U (en) | Hydraulic turbine speed adjusting device | |
| CN217109072U (en) | Handcart type liquid automatic adding integrated device | |
| CN202756171U (en) | Impulse water turbine control system | |
| CN214570708U (en) | Portable oil filling device | |
| CN214888086U (en) | Hydraulic equipment with oil leakage early warning device for production of mining machine parts | |
| CN102410281B (en) | Hydraulic relay wheel | |
| CN109707586A (en) | Auxiliary agent filling apparatus and method are realized using natural gas well oil jacket pressure difference | |
| CN205001264U (en) | High pressure air spring | |
| CN114790959A (en) | Still water power generation technology | |
| CN210370828U (en) | Automatic pre-lubricating device of electric control hydraulic engine | |
| CN203475521U (en) | Vacuum suppressor of non-negative-pressure pressure-superposed water supply device | |
| CN209370181U (en) | Hydraulic control system in wind power equipment | |
| CN209892414U (en) | Piezoelectric stack driven high-viscosity automatic oil injector | |
| CN222760697U (en) | A fat supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |