CN112345019B - Automatic metering device for wine making - Google Patents
Automatic metering device for wine making Download PDFInfo
- Publication number
- CN112345019B CN112345019B CN202011141475.4A CN202011141475A CN112345019B CN 112345019 B CN112345019 B CN 112345019B CN 202011141475 A CN202011141475 A CN 202011141475A CN 112345019 B CN112345019 B CN 112345019B
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- hydraulic
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- stop
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- 238000011514 vinification Methods 0.000 title claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 8
- 235000014101 wine Nutrition 0.000 claims description 8
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical group CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 240000006394 Sorghum bicolor Species 0.000 description 1
- 235000011684 Sorghum saccharatum Nutrition 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 244000098338 Triticum aestivum Species 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013124 brewing process Methods 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010563 solid-state fermentation Methods 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
- 235000020097 white wine Nutrition 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F19/00—Calibrated capacity measures for fluids or fluent solid material, e.g. measuring cups
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses an automatic metering device for wine making, which belongs to the technical field of wine making equipment and comprises the following components: the device comprises a pipe body, a valve device, a flow transmission device, a hydraulic transmission device, a graduated scale strip, a trigger device and a reset device. The invention effectively utilizes the rotation of the flow metering turbine blade, drives the rotation to the hydraulic device through the gear pair, and pushes the graduated scale strip by utilizing the hydraulic principle, so that the stop dog clamped on the graduated scale strip pushes the trigger connecting rod to close the valve. Compared with the direct use of the flowmeter, the electromagnetic valve and the controller, the invention adopts the ingenious mechanical linkage structure to achieve the same metering and control effects, reduces the use degree of electronic devices, ensures that the metering device is more suitable for long-term humid and corrosive environments such as wineries, and also reduces the maintenance cost.
Description
Technical Field
The invention belongs to the technical field of wine making equipment, and particularly relates to an automatic metering device for wine making.
Background
White spirit brewing is mostly solid state fermentation, and the main product is ethanol. Through detection analysis, the white spirit contains about 2% of other flavor materials except ethanol and water. Because the types and mutual proportions of the flavor materials in nine are different, the white spirit is different from alcohol, and different style characteristics are formed. The proportioning step of raw materials is particularly important in the white wine brewing process, and the quality and the taste of the wine are directly affected. The brewing materials are sorghum (36%), rice (22%), glutinous rice (18%), wheat (16%), corn (8%), and the mass ratio of them is very strict. The materials are transported to a material handling site in sequence according to the principle of more materials before less materials are mixed, and various grain proportions cannot be mixed. At present, the batching mode in most of the wine making factories still adopts a manual weighing and shoveling mode, so that the manpower labor capacity is huge, errors are easy to occur, and the quality of wine products cannot be guaranteed. Automatic batching and wine making and filling are the necessary trend of modern industry. The existing automatic wine making factories mostly adopt a mode of combining a flowmeter, an electromagnetic valve and a controller to achieve the effect of automatic measurement, but in the environment that the wine making factories are wet for a long time and have corrosiveness, electronic equipment is extremely easy to fail, so that the wine making efficiency and the wine making quality are affected, and the maintenance cost is greatly increased.
Disclosure of Invention
The invention aims at: an automatic metering device for wine making is provided, which uses mechanical metering to trigger a mechanical switch, so as to solve the existing problems.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
an automatic metering device for making wine, comprising: the automatic sealing device comprises a tube body, a valve device, a flow transmission device, a hydraulic transmission device, a graduated scale strip, a trigger device and a reset device, wherein the valve device and the flow transmission device are arranged in the tube body, turbine blades are arranged on the flow transmission device, the turbine blades can be driven to rotate when materials in the tube body flow, the flow transmission device and the hydraulic transmission device are connected through a gear pair, the hydraulic transmission device comprises a hydraulic lifting device, a stop valve is arranged on the hydraulic lifting device, the hydraulic lifting device can push the graduated scale strip to move upwards, the trigger device is arranged above the graduated scale strip, the trigger device comprises a driven pull rod and a stop valve connecting rod, one end of the driven pull rod is buckled with the valve device, one end of the stop valve connecting rod is connected to a stop valve of the hydraulic lifting device, the trigger device can release the buckling state of the driven pull rod and the valve device, the reset device comprises a moving pair, and the moving pair can enable the valve device to move downwards to enable the valve device to be buckled with the driven pull rod.
The hydraulic transmission device further comprises a stirring gear, a first lever and a first spring, wherein one end of the first lever leans against the profile tooth surface of the stirring gear, the other end of the first lever is connected with the input end piston of the hydraulic jacking device, the stirring gear can drive the first lever to periodically swing when rotating so that the input end piston of the hydraulic jacking device periodically moves up and down, and the first spring is arranged above the rod at one end of the stirring gear of the first lever.
The scale strip is arranged on the output end piston of the hydraulic jacking device, a stop block is clamped on the scale strip, and the upper top surface of the stop block is an inclined surface.
The trigger device further comprises a second lever, a trigger plate, a second spring and a floating ball lever, wherein the second lever is arranged above a stop block of the graduated scale strip, an inclined surface on the stop block can push the second lever to rotate when the stop block moves upwards, the other end of the second lever leans against the trigger plate, one end of the driven pull rod is connected with the trigger plate, the second spring is connected to the opposite surface of the connection surface of the trigger plate and the driven pull rod, one end of the stop valve connecting rod is connected with a stop valve of the hydraulic jacking device at one side of the trigger plate, the stop valve connecting rod moves leftwards to open the stop valve of the hydraulic jacking device, the floating ball lever is arranged on an oil tank of the hydraulic jacking device, one end of the floating ball lever is arranged on one side of the stop valve, and the floating ball lever can rotate to push the stop valve of the hydraulic jacking device to close after hydraulic oil rises.
The valve device comprises: the valve comprises a valve body and a third spring, wherein the valve body is provided with a trigger button, one end of a driven pull rod is buckled with the trigger button to enable the valve device to be kept in an open state, the driven pull rod can be moved rightwards to release the buckling with the trigger button, and the third spring under the valve body enables the valve body to move upwards to enable the valve device to be closed when the buckling state is released.
The movable pair comprises a valve connecting rod and a third lever, one end of the valve connecting rod is connected with the valve body, and the other end of the valve connecting rod is connected with the third lever.
The reset device further comprises: the sensor is beside the station, the sensor transmits signals to the motor, the motor drives the cam to rotate, one end of the third lever is arranged on the cam, and the third lever can swing when the cam rotates.
Due to the adoption of the technical scheme, the invention has the beneficial effects that: this automatic metering device for wine making has effectively utilized the rotation of flow measurement turbine blade, will rotate the transmission to hydraulic means through the gear pair, and the hydraulic principle of reuse promotes the scale strip, and then makes the dog of centre gripping on the scale strip promote the trigger connecting rod and close the valve, because the dog is adjustable in the position on the scale strip, and then has played the effect that reaches adjustable measurement self-closing valve, is equipped with resetting means so that the next measurement simultaneously. Compared with the direct use of the flowmeter, the electromagnetic valve and the controller, the invention adopts the ingenious mechanical linkage structure to achieve the same metering control effect, reduces the use degree of electronic devices, ensures that the metering device is more suitable for long-term moist and corrosive environments such as wineries, and also reduces the maintenance cost.
Drawings
Fig. 1 is a schematic diagram of the present invention in full section.
Fig. 2 is a schematic diagram of a hydraulic transmission.
Reference numerals: 1-tube, 2-valve device, 3-flow transmission device, 4-hydraulic transmission device, 5-scale bar, 6-trigger device, 7-reset device, 301-turbine blade, 302-gear pair, 401-toggle gear, 402-first lever, 403-first spring, 404-hydraulic jack device, 4041-input end piston, 4042-output end piston, 4043-stop valve, 4044-tank, 501-stop, 601-second lever, 602-trigger plate, 603-follower lever, 604-stop valve connecting rod, 605-second spring, 606-float lever, 201-valve body, 202-third spring, 203-trigger button, 701-valve connecting rod, 702-third lever, 703-cam, 704-motor, 705-sensor
Detailed Description
Referring to fig. 1, an automatic weighing apparatus for producing wine, comprising: the pipe body 1, the valve device 2, the flow transmission device 3, the hydraulic transmission device 4, the graduated scale strip 5, the triggering device 6 and the resetting device 7.
The valve device 2 and the flow transmission device 3 are arranged in the pipe body 1, the flow transmission device 3 is provided with turbine blades 301, the turbine blades 301 can be driven to rotate when materials in the pipe body 1 flow downwards from top to bottom, the materials are ingredients used for making wine or wine making liquid, the valve device 2 is arranged above the flow transmission device 3, and a flow guide block which is connected with the flow guide function together is arranged in the middle of the valve device 2. The flow transmission device 3 is connected with the hydraulic transmission device 4 through a gear pair 302, and the transmission shaft of the turbine blade 301 transmits the rotation of the turbine blade 301 to the hydraulic transmission device 4 outside the pipe body 1 through bevel gear transmission.
As shown in fig. 2, the hydraulic transmission device 4 includes: a toggle gear 401, a first lever 402, a first spring 403 and a hydraulic jacking device 404. The rotation of the turbine blade 301 is transmitted to the toggle gear 401 through the change direction of the bevel gears, the outgoing direction of the transmission shaft of the flow transmission device 3 in the figure is inconsistent with the input direction of the hydraulic transmission device 4, but the steering can still be completed by increasing the number of bevel gear groups in the gear pair 302. One end of the first lever 402 is leaned against the profile tooth surface of the gear, the other end of the first lever is connected with an input end piston 4041 of the hydraulic lifting device 404, the first lever 402 can be driven to periodically swing when the gear rotates to enable the input end piston 4041 of the connected hydraulic lifting device 404 to periodically move up and down, the principle of the hydraulic lifting device 404 is similar to a jack, when the input end piston 4041 moves up, a one-way valve in a cylinder pipeline of the output end piston 4042 is closed, when the input end piston 4044 is connected, oil is pumped from the oil tank 4044 into the cylinder of the input end piston 4041, when the input end piston 4041 moves down for compression, the one-way valve in the cylinder pipeline of the oil tank 4044 is closed, the one-way valve in the cylinder pipeline of the output end piston 4042 is opened, and oil in the cylinder of the input end piston 4041 is pressed into the cylinder of the output end piston 4042, so that the jack moves up a distance. The input piston 4041 is periodically moved up and down so that the output piston 4042 can always be moved up and up.
The first spring 403 is above the bar of one end of the toggle gear 401 of the first lever 402, so that the first lever 402 can move in line with the contour of the toggle gear 401.
The graduated scale strip 5 is arranged on the output end piston 4042 of the hydraulic jacking device 404, and the graduated scale strip 5 is clamped with the stop block 501 along with the upward movement of the output end piston 4042, and the stop block 501 is clamped on the graduated scale strip 5, so that the position of the stop block 501 on the graduated scale strip 5 can be adjusted, the graduated scale strip 5 is provided with graduations, the stop block 501 is a contact object touching the upper triggering device 6, and the position of the adjustment stop block 501 is equivalent to the single required metering quantity.
The trigger device 6 comprises a second lever 601, a trigger plate 602, a driven pull rod 603, a stop valve connecting rod 604, a second spring 605 and a floating ball lever 606, wherein the second lever 601 is arranged above the stop block 501 of the graduated scale strip 5, the upper top surface of the stop block 501 is an inclined surface, when an object acts on the upper surface, the object can move obliquely, so that the inclined surface on the stop block 501 can push the second lever 601 to rotate when the stop block 501 moves upwards, the other end of the second lever 601 is abutted against the trigger plate 602, the trigger plate 602 can be moved leftwards by rotating the second lever 601, one end of the driven pull rod 603 is connected with the trigger plate 602, and the other end of the driven pull rod 603 is buckled with the valve device 2, and the trigger plate 602 can move leftwards to enable the driven pull rod 603 to move rightwards so as to release the buckling state of the driven pull rod 603 and the valve device 2.
One end of the stop valve connecting rod 604 is connected with the stop valve 4043 of the hydraulic jacking device 404 at the other end of the left side of the trigger plate 602, and the position of the stop valve connecting rod 604 at the left side of the trigger plate 602 is just the position at which the buckling state of the driven pull rod 603 and the valve device 2 is to be released when the trigger plate 602 moves rightwards, that is, the position can trigger two mechanisms simultaneously. The movement of the shut-off valve connecting rod 604 to the left opens the shut-off valve 4043 of the hydraulic jack 404 because the hydraulic jack 404 must open the shut-off valve 4043 to discharge oil from the cylinder of the output piston 4042 back into the tank 4044 after the jack is completed, thereby returning. The stop valve connecting rod 604 is moved to the left as a whole, and a guide rail is provided around the connecting rod in order to maintain the stability of the movement. The stop valve 4043 of the hydraulic jacking device 404 needs to be automatically closed after the oil discharge is completed to perform the next hydraulic jacking operation, the function of automatically closing the stop valve 4043 after the completion of the full-back is achieved by arranging a floating ball and a lever on the rising oil surface of the oil tank 4044, the floating ball lever 606 is arranged on the oil tank 4044 of the hydraulic jacking device 404, one end of the floating ball lever 606 is arranged on one side of the stop valve 4043, and the floating ball lever 606 can rotate after the hydraulic oil rises to push the stop valve 4043 of the hydraulic jacking device 404 to be closed.
A second spring 605 is attached to the opposite surface of the trigger plate 602 from the surface to which the follower link 603 is attached, and the second spring 605 is a function of returning the trigger plate 602.
The valve device 2 includes: the valve body 201 and the third spring 202, there is a trigger button 203 below the valve body 201, one end of the driven pull rod 603 buckles the trigger button 203 to keep the valve device 2 in an open state, the driven pull rod 603 moves rightwards to release the buckling with the trigger button 203, and the third spring 202 in a compressed state under the valve body 201 can move upwards to block the closed channel when the buckling is released, so that the valve device 2 is closed. It is to be noted here that the mounting plate on which the third spring 202 is mounted is hollow, and the trigger button 203 can pass through the third spring 202 and the mounting plate of the third spring 202.
The reset device 7 comprises a moving pair which moves the valve device 2 downwards to enable the trigger button 203 below the valve body 201 to be buckled with the driven pull rod 603. The moving pair comprises a valve connecting rod 701 and a third lever 702, wherein one end of the valve connecting rod 701 is connected with the valve, and the other end is connected with the third lever 702. Driving the third lever 702 downward will return the valve body 201 to the engaged position.
A preferred embodiment is provided for driving the third lever 702 in rotation: the resetting means 7 further comprises: the cam 703, the motor 704 and the sensor 705, the sensor 705 is at the side of the station for detecting whether the loading device arrives at the station, if the loading device arrives under the pipe body 1, the sensor 705 transmits a signal to the motor 704, the motor 704 drives the cam 703 to rotate to start one round of metering loading, one end of the third lever 702 is arranged on the cam 703, and the third lever 702 can swing when the cam 703 rotates.
The invention is designed in principle, wherein the hinging positions of the supporting table of the spring and the lever are not specifically described, and the hinging positions are obvious in the figure. For ease of understanding, none of the parts depicted in the figures depict the corresponding mounting bracket and mounting housing, and are not absent.
Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (7)
1. An automatic metering device for making wine, comprising: the device is characterized in that the valve device (2) and the flow transmission device (3) are arranged in the pipe body (1), the turbine blade (301) is arranged on the flow transmission device (3), the turbine blade (301) can be driven to rotate when materials in the pipe body (1) flow, the flow transmission device (3) is connected with the hydraulic transmission device (4) through a gear pair (302), the hydraulic transmission device (4) comprises a hydraulic jacking device (404), a stop valve (4043) is arranged on the hydraulic jacking device (404), the hydraulic jacking device (404) can push the graduated scale (5) to move upwards, the trigger device (6) is arranged above the graduated scale (5), the trigger device (6) comprises a driven pull rod (603) and a stop valve connecting rod (604), one end of the driven pull rod (603) is buckled with the valve device (2), one end of the stop valve (604) is connected with the stop valve (4043) of the stop valve (404), and the trigger device (6) is moved to release the buckling state of the driven pull rod (603) and the valve device (2) and open the stop valve (4043), the reset device (7) comprises a moving pair, and the moving pair can enable the valve device (2) to move downwards to enable the valve device (2) to be buckled with the driven pull rod (603).
2. The automatic metering device for wine making according to claim 1, wherein the hydraulic transmission device (4) further comprises a stirring gear (401), a first lever (402) and a first spring (403), one end of the first lever (402) is leaned against a profile tooth surface of the stirring gear (401), the other end of the first lever is connected with an input end piston (4041) of the hydraulic lifting device (404), the stirring gear (401) can drive the first lever (402) to periodically swing when rotating so that the input end piston (4041) of the hydraulic lifting device (404) periodically moves up and down, and the first spring (403) is above a rod at one end of the stirring gear (401) where the first lever (402) is located.
3. The automatic metering device for wine making according to claim 2, wherein the scale bar (5) is arranged on an output end piston (4042) of the hydraulic jacking device (404), a stop block (501) is clamped on the scale bar (5), and the upper top surface of the stop block (501) is an inclined surface.
4. An automatic metering device for wine making according to claim 3, wherein the trigger device (6) further comprises a second lever (601), a trigger plate (602), a second spring (605) and a float lever (606), wherein the second lever (601) is above a stop block (501) of the scale bar (5), when the stop block (501) moves upwards, an inclined surface on the stop block (501) can push the second lever (601) to rotate, the other end of the second lever (601) leans against the trigger plate (602), the left end of the driven pull rod (603) is connected with the trigger plate (602), the second spring (605) is connected with the opposite surface of the connecting surface of the trigger plate (602) and the driven pull rod (603), one end of the stop valve connecting rod (604) is connected with a stop valve (4043) of the hydraulic jack device (404) at the other end of the side of the trigger plate (602), the stop valve connecting rod (604) moves leftwards to open the stop valve (4043) of the hydraulic jack device (404), the stop valve connecting rod (606) is arranged at one end of the float ball (4043) of the float ball (40) of the float lever (44) on the hydraulic jack device (404), the float lever (606) can rotate after the hydraulic oil rises so as to push the stop valve (4043) of the hydraulic jacking device (404) to be closed.
5. Automatic metering device for the production of wine according to claim 1, characterized in that said valve means (2) comprise: the valve comprises a valve body (201) and a third spring, wherein a trigger button is arranged on the valve body (201), the right end of a driven pull rod (603) is buckled with the trigger button to enable the valve device (2) to be kept in an open state, the driven pull rod (603) moves rightwards to release the buckling with the trigger button, and the third spring under the valve body (201) enables the valve body (201) to move upwards to enable the valve device (2) to be closed when the buckling state is released.
6. The automatic metering device for wine making according to claim 1, wherein the moving pair comprises a valve connecting rod (701) and a third lever (702), one end of the valve connecting rod (701) is connected with the valve body (201), and the other end is connected with the third lever (702).
7. Automatic metering device for the production of wine according to claim 6, characterized in that said resetting device (7) further comprises: the device comprises a cam (703), a motor (704) and a sensor (705), wherein the sensor (705) is beside a station, the sensor (705) transmits a signal to the motor (704), the motor (704) drives the cam (703) to rotate, one end of a third lever (702) is arranged on the cam (703), and the cam (703) can enable the third lever (702) to swing when rotating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011141475.4A CN112345019B (en) | 2020-10-22 | 2020-10-22 | Automatic metering device for wine making |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011141475.4A CN112345019B (en) | 2020-10-22 | 2020-10-22 | Automatic metering device for wine making |
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| Publication Number | Publication Date |
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| CN112345019A CN112345019A (en) | 2021-02-09 |
| CN112345019B true CN112345019B (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011141475.4A Active CN112345019B (en) | 2020-10-22 | 2020-10-22 | Automatic metering device for wine making |
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| CN1598496A (en) * | 2003-09-17 | 2005-03-23 | 胡嘉林 | Precision metering system for transporting liquid and gas by pipeline |
| EP1588777A2 (en) * | 2004-04-23 | 2005-10-26 | Nordson Corporation | A dispenser having a pivoting actuator assembly |
| CN102288116A (en) * | 2011-05-18 | 2011-12-21 | 周泉清 | Liquid-level variable and gear variable combined high-precision measuring and metering method and device |
| CN104142166A (en) * | 2014-07-28 | 2014-11-12 | 北京机械设备研究所 | Hydraulic closed oil tank oil scale corresponding to temperatures |
| CN106763803A (en) * | 2015-11-20 | 2017-05-31 | 中国石油化工股份有限公司 | A kind of control valve for small flows |
| CN110124120A (en) * | 2019-05-15 | 2019-08-16 | 王维 | A kind of pleural effusion automatic gauge discharger |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226161A (en) * | 2009-05-22 | 2016-12-14 | 国际计测器株式会社 | Oil hydraulic system and general-purpose test device |
-
2020
- 2020-10-22 CN CN202011141475.4A patent/CN112345019B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1598496A (en) * | 2003-09-17 | 2005-03-23 | 胡嘉林 | Precision metering system for transporting liquid and gas by pipeline |
| EP1588777A2 (en) * | 2004-04-23 | 2005-10-26 | Nordson Corporation | A dispenser having a pivoting actuator assembly |
| CN102288116A (en) * | 2011-05-18 | 2011-12-21 | 周泉清 | Liquid-level variable and gear variable combined high-precision measuring and metering method and device |
| CN104142166A (en) * | 2014-07-28 | 2014-11-12 | 北京机械设备研究所 | Hydraulic closed oil tank oil scale corresponding to temperatures |
| CN106763803A (en) * | 2015-11-20 | 2017-05-31 | 中国石油化工股份有限公司 | A kind of control valve for small flows |
| CN110124120A (en) * | 2019-05-15 | 2019-08-16 | 王维 | A kind of pleural effusion automatic gauge discharger |
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| CN112345019A (en) | 2021-02-09 |
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