CN112129384B - Metering calibrating device for liquid volume detection - Google Patents
Metering calibrating device for liquid volume detection Download PDFInfo
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- CN112129384B CN112129384B CN202011122407.3A CN202011122407A CN112129384B CN 112129384 B CN112129384 B CN 112129384B CN 202011122407 A CN202011122407 A CN 202011122407A CN 112129384 B CN112129384 B CN 112129384B
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- 239000007788 liquid Substances 0.000 title claims abstract description 14
- 238000001514 detection method Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 93
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 238000005259 measurement Methods 0.000 claims description 17
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 238000012795 verification Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 2
- 238000007667 floating Methods 0.000 abstract description 21
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241001233242 Lontra Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/0084—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume for measuring volume
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention relates to the technical field of detection devices, in particular to a metering calibrating device for liquid volume detection, which comprises a base, wherein a metering cavity is arranged on the base and is in a cylinder shape, a piston is arranged in the metering cavity, a floating ball is arranged in the metering cavity, an end cover is fixedly connected above the metering cavity, a driving device is arranged between the end cover and the piston and is used for driving the piston to move up and down, a first circular channel is arranged on the piston, a sealing block is slidably connected in the first circular channel, a water inlet is arranged on the sealing block, the water inlet is connected with a water inlet pipe, a water outlet pipe is arranged at the bottom of the metering cavity, a switching valve is arranged on the water outlet pipe, a controller is fixedly connected on the metering cavity, and the driving device and the switching valve are electrically connected with the controller. The volume in the metering chamber can be varied by driving the piston up and down by the driving means.
Description
Technical Field
The invention relates to the technical field of detection devices, in particular to a metering verification device for liquid volume detection.
Background
The development speed of the China industry is rapid in recent century, industrial products are visible everywhere, but a lot of defective products flow into the market, the defective products not only affect the use experience of people, but also even threaten the physical health of users, therefore, whether factories or quality and technology authorities can take strict care of the products flowing into the market, and in the inspection of certain products, certain liquid substances need to be extracted quantitatively.
Chinese patent CN209446141U discloses a metering verification device, but the device has the following drawbacks that the water in the metering cavity of the device is a constant value, and the adaptability is poor.
Disclosure of Invention
The invention aims at: a metering and calibrating device for liquid volume detection is provided.
The technical scheme adopted by the invention is as follows:
the utility model provides a liquid volume detects and uses metering verification device, includes the base, be equipped with the measurement chamber on the base, the measurement chamber is the cylinder, the measurement intracavity is equipped with the piston, the measurement intracavity is equipped with the floater, measurement chamber top fixedly connected with end cover, the end cover with be equipped with drive arrangement between the piston, drive arrangement is used for the drive the piston reciprocates, be equipped with first circular passageway on the piston, sliding connection has the sealing block on the first circular passageway, be equipped with the water inlet on the sealing block, the water inlet is connected with the inlet tube, measurement chamber bottom is equipped with the outlet pipe, be equipped with the ooff valve on the outlet pipe, fixedly connected with controller on the measurement chamber, drive arrangement and the ooff valve all with the controller electricity is connected.
By adopting the technical scheme, the volume in the metering cavity can be changed by driving the piston to move up and down through the driving device. After the required water quantity is determined, the piston can be driven to move up and down through the driving device, and when the piston is driven to move upwards, the volume in the metering cavity is increased; as the drive piston moves downwardly, the volume within the metering chamber decreases. After the position of the piston is moved, water is injected into the metering cavity through the water inlet pipe, the floating ball continuously rises along with the water level line during water injection, the first circular channel is blocked after the floating ball rises to a certain height, at the moment, water injection is stopped, redundant water in the first circular channel is pumped out, at the moment, the water in the metering cavity is a preset value, then the switch valve is opened, and the water in the metering cavity is discharged to a corresponding place.
Preferably, the driving device comprises a motor arranged on the end cover, a driving gear is fixedly connected to the motor, a driving rod is fixedly connected to the piston, a rack is arranged on the driving rod and meshed with the driving gear, and a through hole for the driving rod to move is formed in the end cover.
By adopting the technical scheme, the principle of the driving device is that after the motor is started, the motor drives the driving gear to rotate, so that the gear is driven to move up and down, the whole driving rod is driven to move up and down, and the piston is driven to move up and down.
Preferably, the motor is electrically connected to the controller.
Preferably, the driving rod is internally provided with a screw rod, the screw rod extends out of the driving rod, the end part of the screw rod is fixedly connected with a rotating handle, a sliding block is arranged in the driving rod, the sliding block is matched with the screw rod, the sliding block is fixedly connected with a first connecting rod, the first connecting rod is L-shaped, the other end of the first connecting rod is fixedly connected with a sealing block, and a round rod is fixedly connected below the sealing block.
Through adopting above-mentioned technical scheme, after the measuring intracavity pours into water into, when required water is less than the measuring intracavity according to the scene requirement, through driving the twist grip rotation, drive the lead screw and rotate, thereby drive the slider and move down, thereby drive the sealing block through the head rod and move down, thereby drive the round bar and move down, then the round bar is with the floater jack-off, then drive piston down moves, when the piston down moves, the measuring intracavity water will follow first circular channel department discharge, after the piston descends to corresponding position, drive twist grip reverse rotation, at this moment, the lead screw will drive the slider and upwards move, thereby drive the sealing block upwards move through the head rod, thereby drive the round bar upwards move, at this moment, the floater will plug up first circular channel again.
Preferably, the sealing block is provided with a return port, and the return port is connected with a return pipe.
Through adopting above-mentioned technical scheme, through setting up return port and back flow, unnecessary moisture in the first circular passageway can be discharged in the back flow pipe with the return port.
Preferably, the screw rod is provided with a locking device, the locking device comprises a locking gear arranged on the screw rod, one side of the locking gear is provided with a sector inner gear, the sector inner gear is matched with the locking gear, the driving rod is fixedly connected with a mounting block, a sliding groove is arranged in the mounting block, the sector inner gear is slidably connected in the sliding groove, the sector inner gear is fixedly connected with a second connecting rod, the second connecting rod penetrates through the mounting block and stretches out of the mounting block, and the end of the second connecting rod is fixedly connected with the driving block.
Through adopting above-mentioned technical scheme, this locking device's theory of operation does, and when the fan-shaped internal gear of drive was engaged with the locking gear, the locking gear will be locked by fan-shaped internal gear, and the locking gear will not rotate this moment to the unable rotation of restriction lead screw, this locking device can prevent that the twist grip from receiving vibrations or other factors etc. and influencing oneself and rotating. When the screw rod needs to be rotated, the driving sector inner gear is separated from the locking gear, and at the moment, the screw rod can be driven to rotate.
Preferably, a limiting plate is arranged on the sector inner gear, and a first spring is arranged between the limiting plate and the inner end face of the sliding groove.
Through adopting above-mentioned technical scheme, can restrict the travel distance of fan-shaped internal gear through setting up the limiting plate, through setting up first spring, first spring exerts a force towards the locking gear direction for fan-shaped internal gear, makes fan-shaped internal gear and locking gear be in the meshing state all the time under the effect of not receiving external force.
Preferably, a fixed block is fixedly connected below the sealing block, a second circular channel is arranged in the fixed block, the second circular channel coincides with the axis of the second circular channel, the radius of the second circular channel is larger than that of the first circular channel, an inclined plane is arranged below the sealing block, and the inclined plane inclines towards the second circular channel.
Through adopting above-mentioned technical scheme, through setting up the circular passageway of second to, the inclined plane of sealing block below towards the circular passageway slope of second, make things convenient for the floater to get into the circular passageway of second, thereby accurate shutoff first circular passageway.
Preferably, the fixed block is internally provided with a water flow rate control device, the water flow rate control device comprises a mounting groove, the mounting groove is perpendicular to the second circular channel, an opening of the mounting groove faces the second circular channel, a sliding block is slidably connected in the mounting groove, a pressure sensor is arranged in the mounting groove, a second spring is arranged between the sliding block and the bottom of the mounting groove, a flow regulating valve is arranged on the water inlet pipe, and the pressure sensor and the flow regulating valve are electrically connected with the controller.
Through adopting above-mentioned technical scheme, before the floater gets into in the circular passageway of second, flow control valve is quick water inlet mode, when the floater gets into in the circular passageway of second, the floater will drive the slider and inwards move, will extrude pressure sensor when the slider inwards moves, pressure sensor sends the signal to the controller on, controller control flow control valve adjusts to slow water inlet mode. The device is characterized in that the device is in a rapid water inlet mode when water injection is started, can rapidly fill water, saves time, is adjusted to a slow water injection mode when water blocks are full, and can eliminate bubbles generated when water is rapidly filled, so that accuracy in a metering cavity is improved.
Preferably, the bottom of the metering cavity is funnel-shaped, the water outlet pipe is connected with the bottom of the metering cavity, a receiving screen plate is arranged in the metering cavity, and the receiving screen plate is horizontally arranged.
Through adopting above-mentioned technical scheme, through designing into the funnel form with the measurement chamber bottom, when can preventing to drain, have water to remain in the measurement intracavity, through setting up to accept the otter board, can prevent that the floater from plugging up the drain pipe, lead to having a small amount of water to remain in the measurement intracavity.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
in the invention, after the required water quantity is determined, the piston can be driven to move up and down by the driving device, and when the piston is driven to move upwards, the volume in the metering cavity is increased; when the piston is driven to move downwards, the volume in the metering cavity is reduced, so that the volume in the metering cavity is changed, and the whole device can adapt to the requirements of different metering water.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1 in accordance with the present invention;
FIG. 3 is an enlarged view of portion B of FIG. 1 in accordance with the present invention;
fig. 4 is an enlarged view of the portion C in fig. 1 according to the present invention.
The marks in the figure: the device comprises a base, a 2-measuring cavity, a 3-piston, a 4-floating ball, a 5-end cover, a 6-first circular channel, a 7-sealing block, an 8-water inlet, a 9-water inlet pipe, a 10-water outlet pipe, a 11-switching valve, a 12-controller, a 13-motor, a 14-driving gear, a 15-driving rod, a 16-rack, a 17-lead screw, a 18-rotating handle, a 19-slider, a 20-first connecting rod, a 21-circular rod, a 22-backflow port, a 23-backflow pipe, a 24-locking gear, a 25-sector internal gear, a 26-mounting block, a 27-sliding groove, a 28-second connecting rod, a 29-driving block, a 30-limiting plate, a 31-first spring, a 32-fixing block, a 33-second circular channel, a 34-mounting groove, a 35-sliding block, a 36-pressure sensor, a 37-second spring, a 38-flow regulating valve and a 39-receiving screen plate.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the invention, i.e., the embodiments described are merely some, but not all, of the embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
It is noted that relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
As shown in fig. 1-4, a metering calibrating device for liquid volume detection comprises a base 1, a metering cavity 2 is arranged on the base 1, the metering cavity 2 is a cylinder, a piston 3 is arranged in the metering cavity 2, a floating ball 4 is arranged in the metering cavity 2, an end cover 5 is fixedly connected above the metering cavity 2, a driving device is arranged between the end cover 5 and the piston 3 and is used for driving the piston 3 to move up and down, a first circular channel 6 is arranged on the piston 3, a sealing block 7 is slidably connected in the first circular channel 6, a water inlet 8 is arranged on the sealing block 7, the water inlet 8 is connected with a water inlet pipe 9, a water outlet pipe 10 is arranged at the bottom of the metering cavity 2, a switch valve 11 is arranged on the water outlet pipe 10, a controller 12 is fixedly connected on the metering cavity 2, and both the driving device and the switch valve 11 are electrically connected with the controller 12. The volume within the metering chamber 2 may be varied by driving the piston 3 up and down by a driving means. After the required water quantity is determined, the piston 3 can be driven by the driving device to move up and down, and when the piston 3 is driven to move upwards, the volume in the metering cavity 2 is increased; as the drive piston 3 moves downwards, the volume within the metering chamber 2 decreases. After the position of the piston 3 is moved, water is injected into the metering cavity 2 through the water inlet pipe 9, the floating ball 4 continuously rises along with the water level line during water injection, the first circular channel 6 is blocked after the floating ball 4 rises to a certain height, at the moment, water injection is stopped, redundant water in the first circular channel 6 is pumped out, at the moment, the water in the metering cavity 2 is at a preset value, the switch valve 11 is opened, and the water in the metering cavity 2 is discharged to a corresponding place.
In this embodiment, the driving device includes a motor 13 disposed on the end cover 5, a driving gear 14 is fixedly connected to the motor 13, a driving rod 15 is fixedly connected to the piston 3, a rack 16 is disposed on the driving rod 15, the rack 16 is meshed with the driving gear 14, and a through hole for the driving rod 15 to move is formed in the end cover 5. The principle of the driving device is that when the motor 13 is started, the motor 13 drives the driving gear 14 to rotate, so that the gear is driven to move up and down, and the whole driving rod 15 is driven to move up and down, so that the piston 3 is driven to move up and down.
In this embodiment, the motor 13 is electrically connected to the controller 12.
In this embodiment, a screw rod 17 is disposed in the driving rod 15, the screw rod 17 extends to the outside of the driving rod 15, a rotating handle 18 is fixedly connected to an end portion of the screw rod 17, a sliding block 19 is disposed in the driving rod 15, the sliding block 19 is matched with the screw rod 17, a first connecting rod 20 is fixedly connected to the sliding block 19, the first connecting rod 20 is in an L shape, the other end of the first connecting rod 20 is fixedly connected with the sealing block 7, and a round rod 21 is fixedly connected to the lower portion of the sealing block 7.
By adopting the technical scheme, after water is injected into the metering cavity 2, according to the field requirement, when the required water is smaller than the water in the metering cavity 2, the rotary handle 18 is driven to rotate, the screw rod 17 is driven to rotate, the sliding block 19 is driven to move downwards, the sealing block 7 is driven to move downwards through the first connecting rod 20, the round rod 21 is driven to move downwards, then the round rod 21 pushes the floating ball 4 open, then the piston 3 is driven to move downwards, when the piston 3 moves downwards, the water in the metering cavity 2 is discharged from the first circular channel 6, the rotary handle 18 is driven to rotate reversely after the piston 3 descends to the corresponding position, at the moment, the screw rod 17 drives the sliding block 19 to move upwards, the sealing block 7 is driven to move upwards through the first connecting rod 20, the round rod 21 is driven to move upwards, and at the moment, the floating ball 4 plugs the first circular channel 6 again.
In this embodiment, the sealing block 7 is provided with a return port 22, and the return port 22 is connected with a return pipe 23. By providing the return opening 22 and the return pipe 23, excess moisture in the first circular channel 6 can be discharged from the return pipe 23 together with the return opening 22.
In this embodiment, the screw rod 17 is provided with a locking device, the locking device comprises a locking gear 24 arranged on the screw rod 17, one side of the locking gear 24 is provided with a sector inner gear 25, the sector inner gear 25 is matched with the locking gear 24, the driving rod 15 is fixedly connected with a mounting block 26, a sliding groove 27 is arranged in the mounting block 26, the sector inner gear 25 is slidably connected in the sliding groove 27, a second connecting rod 28 is fixedly connected on the sector inner gear 25, the second connecting rod 28 penetrates through the mounting block 26 and extends to the outer side of the mounting block 26, and a driving block 29 is fixedly connected to the end of the second connecting rod 28. The locking device works on the principle that when the driving sector internal gear 25 is meshed with the locking gear 24, the locking gear 24 is locked by the sector internal gear 25, and the locking gear 24 cannot rotate at this time, so that the screw rod 17 cannot rotate, and the locking device can prevent the rotating handle 18 from being influenced by vibration or other factors to rotate. When the screw 17 needs to be rotated, the driving sector internal gear 25 is separated from the locking gear 24, and at this time, the screw 17 can be driven to rotate.
In this embodiment, the ring gear segment 25 is provided with a limiting plate 30, and a first spring 31 is disposed between the limiting plate 30 and the inner end surface of the sliding groove 27. The limiting plate 30 can limit the moving distance of the sector gear 25, and the first spring 31 applies a force to the sector gear 25 towards the locking gear 24 by the first spring 31, so that the sector gear 25 and the locking gear 24 are always in a meshed state without being influenced by external force.
In this embodiment, a fixed block 32 is fixedly connected below the sealing block 7, a second circular channel 33 is disposed in the fixed block 32, the second circular channel 33 coincides with the axis of the second circular channel 33, the radius of the second circular channel 33 is larger than that of the first circular channel 6, and an inclined plane is disposed below the sealing block 7 and inclined towards the second circular channel 33. By arranging the second circular channel 33, and the inclined surface below the sealing block 7 is inclined towards the second circular channel 33, the floating ball 4 can conveniently enter the second circular channel 33, and the first circular channel 6 is accurately blocked.
In this embodiment, a water flow rate control device is disposed in the fixed block 32, the water flow rate control device includes a mounting groove 34, the mounting groove 34 is perpendicular to the second circular channel 33, an opening of the mounting groove 34 faces the second circular channel 33, a sliding block 35 is slidably connected in the mounting groove 34, a pressure sensor 36 is disposed in the mounting groove 34, a second spring 37 is disposed between the sliding block 35 and the bottom of the mounting groove 34, a flow regulating valve 38 is disposed on the water inlet pipe 9, and the pressure sensor 36 and the flow regulating valve 38 are electrically connected with the controller 12. Before the floating ball 4 enters the second circular channel 33, the flow regulating valve 38 is in a fast water inlet mode, when the floating ball 4 enters the second circular channel 33, the floating ball 4 drives the sliding block 35 to move inwards, the sliding block 35 presses the pressure sensor 36 when moving inwards, the pressure sensor 36 sends a signal to the controller 12, and the controller 12 controls the flow regulating valve 38 to be regulated into a slow water inlet mode. The device is characterized in that the device is in a rapid water inlet mode when water injection is started, can rapidly fill water, saves time, is adjusted to be in a slow water injection mode when water blocks are full, and can eliminate bubbles generated when water is rapidly filled, so that accuracy in the metering cavity 2 is improved.
In this embodiment, the bottom of the metering chamber 2 is funnel-shaped, the water outlet pipe 10 is connected with the bottom of the metering chamber 2, a receiving screen 39 is disposed in the metering chamber 2, and the receiving screen 39 is horizontally disposed. By designing the bottom of the measuring chamber 2 to be funnel-shaped, water can be prevented from remaining in the measuring chamber 2 during draining, and by providing the receiving screen 39, the floating ball 4 can be prevented from blocking the drain pipe, resulting in a small amount of water remaining in the measuring chamber 2.
Working principle: since the metering chamber 2 is cylindrical, the relative distance of the piston 3 is a certain ratio to the volume of water in the metering chamber 2. Firstly, the water-filling amount required by the metering cavity 2 is determined according to actual needs, and then the motor 13 is controlled to rotate by the controller 12, in the embodiment, the motor 13 is a servo motor, the servo motor can control the speed, the position accuracy is very accurate, and the voltage signal can be converted into the torque and the rotating speed to drive a control object. The motor 13 will drive the drive gear 14 to rotate, thereby driving the gear to move up and down, thereby driving the entire drive rod 15 to move up and down, thereby driving the piston 3 to move up and down. Here, let us assume that the number of teeth of the driving gear 14 is n and the pitch of the rack 16 is m, so that when the driving gear 14 rotates one turn, the rack 16 rises or falls by a distance n×m. When the piston 3 moves to the corresponding position, water is injected into the metering cavity 2 through the water inlet pipe 9, at the moment, the flow regulating valve 38 is in a rapid water inlet mode, the floating ball 4 continuously rises along with the water level line during water injection, after the floating ball 4 rises to a certain height, the floating ball 4 enters the second circular channel 33, the floating ball 4 drives the sliding block 35 to move inwards, the sliding block 35 presses the pressure sensor 36 when moving inwards, the pressure sensor 36 sends a signal to the controller 12, the controller 12 controls the flow regulating valve 38 to be in a slow water inlet mode, then the water level slowly rises until the floating ball 4 blocks the first circular channel 6, at the moment, water injection is stopped, the excessive water in the first circular channel 6 is discharged from the return pipe 23, at the moment, the water in the metering cavity 2 is at a preset value, then the switch valve 11 is opened, and the water in the metering cavity 2 is discharged to the corresponding place.
When water is injected into the metering cavity 2, according to the field requirement, when the required water is smaller than the water in the metering cavity 2, the rotary handle 18 is driven to rotate, the screw rod 17 is driven to rotate, the sliding block 19 is driven to move downwards, the sealing block 7 is driven to move downwards through the first connecting rod 20, the round rod 21 is driven to move downwards, then the round rod 21 pushes the floating ball 4 open, the piston 3 is driven to move downwards, when the piston 3 moves downwards, the water in the metering cavity 2 is discharged from the return pipe 23 through the first circular channel 6, the rotary handle 18 is driven to rotate reversely after the piston 3 descends to the corresponding position, at the moment, the screw rod 17 drives the sliding block 19 to move upwards, the sealing block 7 is driven to move upwards through the first connecting rod 20, the round rod 21 is driven to move upwards, and at the moment, the floating ball 4 plugs the first circular channel 6 again.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (6)
1. The utility model provides a liquid volume detects and uses metering verification device, its characterized in that includes the base, be equipped with the measurement chamber on the base, the measurement chamber is the cylinder, be equipped with the piston in the measurement chamber, be equipped with the floater in the measurement chamber, measurement chamber top fixedly connected with end cover, be equipped with drive arrangement between end cover and the piston, drive arrangement is used for driving the piston reciprocates, be equipped with first circular passageway on the piston, sliding connection has the sealing block in the first circular passageway, be equipped with the water inlet on the sealing block, the water inlet is connected with the inlet tube, measurement chamber bottom is equipped with the outlet pipe, be equipped with the ooff valve on the outlet pipe, fixedly connected with controller on the measurement chamber, drive arrangement and ooff valve all with the controller electricity is connected;
the driving device comprises a motor arranged on the end cover, a driving gear is fixedly connected to the motor, a driving rod is fixedly connected to the piston, a rack is arranged on the driving rod and meshed with the driving gear, and a through hole for the driving rod to move is formed in the end cover;
a screw rod is arranged in the driving rod, the screw rod extends out of the driving rod, the end part of the screw rod is fixedly connected with a rotating handle, a sliding block is arranged in the driving rod, the sliding block is matched with the screw rod, a first connecting rod is fixedly connected onto the sliding block, the first connecting rod is L-shaped, the other end of the first connecting rod is fixedly connected with the sealing block, and a round rod is fixedly connected below the sealing block; a return port is arranged on the sealing block, and a return pipe is connected to the return port;
the piston is characterized in that a fixed block is fixedly connected below the piston, a second circular channel is arranged in the fixed block, the second circular channel coincides with the axis of the first circular channel, the radius of the second circular channel is larger than that of the first circular channel, an inclined plane is arranged below the fixed block, and the inclined plane inclines towards the second circular channel.
2. The metering device for liquid volume sensing as set forth in claim 1 wherein said motor is electrically connected to said controller.
3. The metering verification device for liquid volume detection according to claim 1, wherein a locking device is arranged on the screw rod, the locking device comprises a locking gear arranged on the screw rod, a sector inner gear is arranged on one side of the locking gear and matched with the locking gear, a mounting block is fixedly connected to the driving rod, a sliding groove is arranged in the mounting block, the sector inner gear is slidably connected to the sliding groove, a second connecting rod is fixedly connected to the sector inner gear, penetrates through the mounting block and stretches out of the mounting block, and a driving block is fixedly connected to the end of the second connecting rod.
4. The metering verification device for liquid volume detection according to claim 3, wherein a limiting plate is arranged on the sector-shaped internal gear, and a first spring is arranged between the limiting plate and the inner end surface of the sliding groove.
5. The metering verification device for liquid volume detection according to claim 1, wherein a water flow rate control device is arranged in the fixed block, the water flow rate control device comprises a mounting groove, the mounting groove is perpendicular to the second circular channel, an opening of the mounting groove faces the second circular channel, a sliding block is slidably connected in the mounting groove, a pressure sensor is arranged in the mounting groove, a second spring is arranged between the sliding block and the bottom of the mounting groove, a flow regulating valve is arranged on the water inlet pipe, and the pressure sensor and the flow regulating valve are electrically connected with the controller.
6. The metering device for liquid volume sensing according to any one of claims 1 to 5, wherein the bottom of the metering chamber is funnel-shaped, the water outlet pipe is connected to the bottom of the metering chamber, a receiving screen is disposed in the metering chamber, and the receiving screen is disposed horizontally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011122407.3A CN112129384B (en) | 2020-10-20 | 2020-10-20 | Metering calibrating device for liquid volume detection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011122407.3A CN112129384B (en) | 2020-10-20 | 2020-10-20 | Metering calibrating device for liquid volume detection |
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| Publication Number | Publication Date |
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| CN112129384A CN112129384A (en) | 2020-12-25 |
| CN112129384B true CN112129384B (en) | 2023-07-25 |
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Application publication date: 20201225 Assignee: Guangxi Wanyou Network Technology Co.,Ltd. Assignor: NANNING University Contract record no.: X2023980045545 Denomination of invention: A metrological verification device for liquid volume detection Granted publication date: 20230725 License type: Common License Record date: 20231103 |
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