CN114427896B - Multi-range flow metering mechanism and infant breast milk absorption amount monitoring device - Google Patents
Multi-range flow metering mechanism and infant breast milk absorption amount monitoring device Download PDFInfo
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- CN114427896B CN114427896B CN202210353115.3A CN202210353115A CN114427896B CN 114427896 B CN114427896 B CN 114427896B CN 202210353115 A CN202210353115 A CN 202210353115A CN 114427896 B CN114427896 B CN 114427896B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
- G01F11/28—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
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Abstract
The invention relates to the field of flow measurement, in particular to a multi-range flow metering mechanism and a baby breast absorption amount monitoring device. The liquid metering device comprises a surplus bottle, a metering cylinder, a bottle cap, a liquid outlet cylinder, a metering ring, a traction structure and a pressure regulating structure, wherein a first scale is arranged on the peripheral wall of the surplus bottle, the upper end of the metering cylinder is communicated with the surplus bottle, an air inlet hole is formed in the lower end of the metering cylinder, a piston is arranged in the metering cylinder, a second scale is arranged on the peripheral wall of the metering cylinder, the upper end of the liquid outlet cylinder penetrates through the bottle cap to be connected with a negative pressure suction device, when the negative pressure suction device sucks out liquid in the surplus bottle through the liquid outlet cylinder, the pressure regulating structure enables the metering ring, the floating ring and the liquid level to form negative pressure, the metering ring slides downwards along with the liquid level, under the action of atmospheric pressure, the piston moves upwards, the metering ring indicates the surplus of the liquid in the surplus bottle on the first scale at the moment, the piston indicates the usage of the liquid sucked out the surplus bottle on the second scale, and the surplus information of the liquid can be acquired by a user at the first time.
Description
Technical Field
The invention relates to the field of flow measurement, in particular to a multi-range flow metering mechanism and a baby breast absorption amount monitoring device.
Background
The flow meter is a commonly used metering mechanism, various flow meters are frequently used for monitoring liquid flow in industrial production and daily life, the conventional metering mechanism is basically reflected by scales on a liquid volumetric flask, sometimes the metering mechanism is used in a non-horizontal state when in use, at the moment, if the liquid flow use condition is to be obtained, the metering mechanism needs to be placed horizontally and then can read a relatively accurate reading, the operation is relatively complicated, the liquid flow use condition cannot be obtained at any time, and therefore the flow metering mechanism with multiple ranges is provided, and the liquid flow use information can be obtained at the first time.
Disclosure of Invention
The invention provides a multi-range flow metering mechanism and a baby milk absorption amount monitoring device, and aims to solve the problem that the existing flow metering mechanism cannot acquire liquid flow use information in time.
The invention relates to a multi-range flow metering mechanism and a baby breast absorption amount monitoring device, which adopt the following technical scheme: a multi-range flow metering mechanism comprises a residual bottle, a bottle cap, a liquid outlet cylinder, a metering ring, a floating ring, a measuring cylinder, a traction structure and a pressure regulating structure. The residual bottle axis is a first axis. The periphery wall of the allowance bottle is provided with a first scale. The bottle cap is arranged above the residual bottle. The lower end of the bottle cap can be rotatably and vertically slidably arranged in the bottle mouth of the residual bottle. The bottle cap has a corresponding matching position, a middle position and a disengaging position when the bottle mouth of the allowance bottle slides. When the bottle cap is in the middle position, the bottle cap rotates forwards and moves downwards to the matching position, rotates backwards and moves upwards to the disengaging position, the bottle cap is sealed with the residual bottle when in the matching position, and the bottle cap is separated from the residual bottle when in the disengaging position. The liquid outlet cylinder is arranged in the residue bottle, the upper end of the liquid outlet cylinder penetrates through the bottle cap to be communicated with the negative pressure suction device, and the lower end of the liquid outlet cylinder is positioned at the bottom of the residue bottle. A first one-way valve is arranged in the liquid outlet cylinder. The conducting direction of the first one-way valve is that liquid flows from the residual bottle to the liquid outlet cylinder in one way. The axis of the metering ring is arranged in the allowance bottle in a manner of being coincided with the first axis. The metering ring is sleeved outside the liquid outlet cylinder in a vertically sliding manner, and the metering ring divides the residual bottle into an upper cavity and a lower cavity which cannot be communicated. The floating ring is arranged at the lower side of the metering ring in a manner of moving up and down. The dosage cylinder sets up in surplus bottle both sides. A piston capable of sliding up and down is arranged in the dosage cylinder. The piston divides the measuring cylinder into an upper cylinder body and a lower cylinder body which can not be conducted. The upper cylinder body is communicated with the upper cavity body, and the lower cylinder body is provided with an air inlet. And a second scale is arranged on the peripheral wall of the dosage cylinder. The traction structure is configured to drive the metering ring and the floating ring to ascend for a predetermined stroke in the process of moving the bottle cap to the disengaging position above reverse rotation, and to drive the metering ring and the floating ring to descend for a predetermined stroke and float on the liquid in the process of moving the bottle cap to the matching position below normal rotation. The pressure regulating structure comprises a pressure regulating hole and a movable plate, and the pressure regulating hole is a through hole in the metering ring. The movable plate is arranged above the pressure regulating hole in a sliding manner along the radial direction of the metering ring. The pressure regulating structure is configured in such a way that in the process of moving the bottle cap upwards, the traction structure drives the movable plate to slide so as to enable air to enter the lower cavity through the pressure regulating hole, and in the process of discharging liquid outwards through the liquid outlet barrel by the negative pressure suction device, the traction structure drives the movable plate to block the pressure regulating hole so as to prevent air in the upper cavity from entering the lower cavity and enable the lower cavity to be in a negative pressure state.
Further, the traction structure also comprises a gear ring, a winding shaft, a first gear and a traction wire. The toothed ring is arranged on the outer side of the bottle cap and fixed at the upper end of the allowance bottle. The winding shaft is arranged between the gear ring and the bottle cap. The winding shaft is rotatably installed outside the side circumferential wall of the bottle cap. The first gear is coaxially and fixedly connected to the lower end of the spool. The first gear is engaged with the inner peripheral wall of the ring gear. One end of the traction wire is connected to the winding shaft, and the other end of the traction wire is connected to the movable plate. When the bottle cap rotates forwards, the gear ring drives the winding shaft to rotate so that the traction line drives the metering ring to move downwards, and when the bottle cap rotates backwards, the gear ring drives the winding shaft to rotate so that the traction line drives the metering ring to move upwards.
Further, the traction structure further comprises a locking structure. The locking structure is provided between the spool and the ring gear and is configured to place the spool in an unlocked state when the cap is in the engaged position and to place the spool in a locked state when the cap is in the disengaged position.
Further, the locking structure comprises a second gear, a first sliding rod, a locking rack and a push rod. The second gear is coaxially and fixedly connected to the upper end of the winding shaft. The first sliding rod is vertically arranged and can be arranged on the bottle cap in a vertically sliding mode. The locking rack is U-shaped and positioned outside the second gear, and two ends of the locking rack are connected with the upper end of the first sliding rod. The push rod is arranged at the lower end of the first sliding rod, one end of the push rod is connected with the lower end of the first sliding rod, the other end of the push rod is arranged above the toothed ring, and the toothed ring is used for driving the locking rack to move upwards through the first sliding rod to be meshed with the second gear when the bottle cap is at the matching position. And a first return spring is arranged between the first sliding rod and the bottle cap and used for enabling the locking rack to move downwards to be meshed with the second gear when the bottle cap is at a separation position.
Further, the pressure regulating structure also comprises a second return spring, a second one-way valve, a stop block and a steering piece. The movable plate and the metering ring are in sliding seal. The second return spring is arranged between the movable plate and the metering ring. The second one-way valve is arranged on the movable plate and used for enabling air between the metering ring and the floating ring to be discharged upwards into the cavity in a one-way mode through the pressure regulating hole. The stop block is arranged on the floating ring and is positioned at the lower side of the pressure regulating hole. The steering piece is arranged at one end of the movable plate close to the circle center of the metering ring and used for converting the traction direction of the traction line into the direction along the diameter of the metering ring and then connecting the traction direction to the movable plate.
Further, the steering member includes a cross bar and two vertical bars. The vertical rods are symmetrically arranged on two sides of the movable plate, and the lower ends of the vertical rods are connected to the metering ring. The horizontal setting of horizontal pole, one end is connected with the montant upper end, and the other end is connected with another montant upper end for the pull wire is connected with the fly leaf behind the winding horizontal pole.
Furthermore, both sides of the movable plate are provided with a matching ring and a second sliding rod. The second slide bar is arranged along the radial direction of the metering ring, one end of the second slide bar is fixed on the metering ring, and the other end of the second slide bar is slidably arranged in the matching ring. The second reset spring is arranged on the second sliding rod and used for resetting the movable plate to block the upper port of the pressure regulating hole after the pull wire is loosened in the process that the negative pressure suction device discharges liquid outwards through the liquid outlet barrel.
Furthermore, draw the structure and be equipped with a plurality ofly, a plurality ofly draw the structure along bottle lid circumference equipartition.
A baby breast-pumping amount monitoring device comprises a multi-range flow metering mechanism, wherein the multi-range flow metering mechanism is any one of the multi-range flow metering mechanisms.
Further, the baby breast-pumping amount monitoring device further comprises a nipple. The nipple is arranged at the upper end of the bottle cap and communicated with the upper end of the liquid outlet cylinder.
The invention has the beneficial effects that: in the flow measurement and measurement process, when liquid in the residual quantity bottle flows out through the liquid outlet cylinder, the pressure regulating structure enables the measurement ring, the floating ring and the liquid level to form negative pressure, the measurement ring slides downwards along the liquid level in a clinging mode, and under the action of atmospheric pressure, the piston moves upwards to enable air in the use quantity cylinder to enter the residual quantity bottle. At the moment, the metering ring indicates the residual amount of the liquid in the residual bottle on the first scale, and the piston displays the measured value of the usage amount of the liquid on the second scale, so that the liquid flow information is acquired at the first time. And when the surplus bottle inclines, because the measuring ring and the surplus bottle are sealed in a sliding mode, the liquid is more stable when the surplus bottle shakes due to the negative pressure between the measuring ring and the liquid, and the situation of the liquid flow using amount can be read out quickly through the position of the piston.
Further, set up the second check valve on the fly leaf, in the flow measurement process, measurement ring and floating ring and liquid level form the negative pressure when flowing out the liquid in with the excess flask through a liquid section of thick bamboo, make distance between measurement ring and the floating ring more and more littleer, through setting up the second check valve, make air arrange to measurement ring top from the second check valve between measurement ring and the floating ring, thereby make distance between measurement ring and the floating ring littleer, the liquid level is pressed close to more to the measurement ring, make the flow measurement reading of measurement ring on first scale more accurate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of a multi-range flow metering mechanism of the present invention;
FIG. 2 is a view illustrating a state where the cap is detached from the reserve bottle according to the embodiment of the present invention;
FIG. 3 is a cross-sectional view of an embodiment of the present invention;
FIG. 4 is a schematic diagram of the structure of the pulling structure, the pressure regulating structure and the metering ring of the embodiment of the invention;
FIG. 5 is a schematic structural view of a metering ring and a floating ring according to an embodiment of the present invention;
FIG. 6 is a front view of an embodiment of the present invention;
FIG. 7 is a state diagram illustrating the operation of the metering ring according to the embodiment of the present invention;
in the figure: 100. a residue bottle; 110. a first scale; 200. a dosing cylinder; 210. an air inlet; 220. a piston; 230. a second scale; 300. a bottle cap; 310. a liquid outlet cylinder; 320. a first check valve; 400. a metering ring; 410. a floating ring; 510. a toothed ring; 520. a spool; 530. a first gear; 540. a pull wire; 550. a second gear; 560. a first slide bar; 570. a locking rack; 580. a push rod; 590. a first return spring; 610. a pressure regulating hole; 620. a movable plate; 621. matching rings; 622. a second slide bar; 630. a second return spring; 640. a second one-way valve; 650. a stopper; 660. a steering member; 700. a nipple.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In a first aspect, the present invention provides an embodiment of a baby breast-pumping monitoring device, as shown in fig. 1 to 7: a multi-range flow metering mechanism comprises a multi-range flow metering mechanism and a nipple 700. The multi-range flow metering mechanism comprises a residual bottle 100, a bottle cap 300, a liquid outlet barrel 310, a metering ring 400, a floating ring 410, a dosage cylinder 200, a traction structure and a pressure regulating structure.
The axis of the residual bottle 100 is a first axis. The outer peripheral wall of the residual bottle 100 is provided with a first scale 110. The bottle cap 300 is provided above the residual bottle 100. The lower end of the cap 300 is rotatably and slidably disposed in the mouth of the reserve bottle 100. The cap 300 has corresponding engagement, intermediate and disengagement positions when the mouth of the remainder bottle 100 is slid. When the cap 300 is at the intermediate position, the cap 300 is rotated forward to move downward to the engagement position and rotated backward to move upward to the disengagement position, the cap 300 is sealed with the remaining amount bottle 100 at the engagement position, and the cap 300 is separated from the remaining amount bottle 100 at the disengagement position.
The liquid outlet cylinder 310 is arranged in the allowance bottle 100, the upper end of the liquid outlet cylinder penetrates through the bottle cap 300 to be communicated with the negative pressure suction device, and the lower end of the liquid outlet cylinder is positioned at the bottom of the allowance bottle 100. A first check valve 320 is provided in the liquid outlet cylinder 310. The first check valve 320 is configured to allow the liquid to flow from the remaining bottle 100 to the liquid outlet tube 310 in one direction. The nipple 700 is arranged at the upper end of the bottle cap 300 and is communicated with the upper end of the liquid outlet cylinder 310. The metering ring 400 is disposed within the residual bottle 100 with its axis coincident with the first axis. The metering ring 400 is slidably sleeved outside the liquid outlet cylinder 310, and the metering ring 400 divides the residual bottle 100 into an upper cavity and a lower cavity which are not communicated. A floating ring 410 is provided on the underside of the metering ring 400 to be movable up and down. The dose cylinders 200 are provided at both sides of the residue bottle 100. A piston 220 which can slide up and down is provided in the dosing cylinder 200. The piston 220 divides the dosing cylinder 200 into an upper cylinder and a lower cylinder which are non-conductive. The upper cylinder body is communicated with the upper cavity body, and the lower cylinder body is provided with an air inlet 210. The dosing cylinder 200 is provided with a second scale 230 on the outer circumferential wall.
The traction structure is configured to drive the metering ring 400 and the floating ring 410 to rise for a predetermined stroke during movement of the cap 300 to the disengaged position upon reverse rotation, and to drive the metering ring 400 and the floating ring 410 to float on the liquid after a predetermined stroke during movement of the cap 300 to the engaged position upon reverse rotation. The pressure regulating structure comprises a pressure regulating hole 610 and a movable plate 620, wherein the pressure regulating hole 610 is a through hole on the metering ring 400. The movable plate 620 is slidably mounted on the metering ring 400 radially along the metering ring 400 and above the pressure regulating hole 610. The pressure regulating structure is configured in such a way that in the process that the bottle cap 300 moves upwards, the traction structure drives the movable plate 620 to slide so as to enable air to enter the lower cavity through the pressure regulating hole 610, in the process that the negative pressure suction device discharges liquid outwards through the liquid outlet cylinder 310, the traction structure drives the movable plate 620 to block the pressure regulating hole 610 so as to prevent air in the upper cavity from entering the lower cavity and enable the lower cavity to be in a negative pressure state, so that the metering ring 400 slides downwards along the liquid level in a clinging manner, and under the action of atmospheric pressure, the piston 220 moves upwards to enable air in the usage amount cylinder 200 to enter the surplus amount bottle 100. At this time, the metering ring 400 indicates the remaining amount of the liquid in the residual bottle 100 on the first scale 110, and the piston 220 indicates the usage amount of the liquid sucked out of the residual bottle 100 on the second scale 230, so that the user can obtain the information of the liquid usage amount and the remaining amount at the first time. And when the residual bottle 100 is tilted, since the metering ring 400 and the residual bottle 100 are slidably sealed, the negative pressure between the metering ring 400 and the liquid makes the liquid more stable when the residual bottle 100 shakes, and the amount of the liquid can be quickly read by the position of the piston 220.
In this embodiment, the traction structure further includes a ring gear 510, a spool 520, a first gear 530, and a traction wire 540. The ring gear 510 is disposed outside the cap 300 and fixed to the upper end of the residual bottle 100. The bobbin 520 is disposed between the ring gear 510 and the bottle cap 300. The bobbin 520 is rotatably installed at the outside of the side circumferential wall of the bottle cap 300. The first gear 530 is coaxially fixedly coupled to a lower end of the spool 520. The first gear 530 is engaged with an inner peripheral wall of the ring gear 510. The traction wire 540 has one end connected to the spool 520 and the other end connected to the movable plate 620. When the bottle cap 300 rotates forward, the gear ring 510 drives the winding shaft 520 to rotate so that the pull wire 540 drives the metering ring 400 to move downward, and when the bottle cap 300 rotates backward, the gear ring 510 drives the winding shaft 520 to rotate so that the pull wire 540 drives the metering ring 400 to move upward. Through the meshing transmission of the gear ring 510 and the first gear 530, the metering ring 400 is lifted after the winding shaft 520 is driven to rotate.
In this embodiment, the pulling structure further comprises a locking structure. A locking structure is provided between the spool 520 and the ring gear 510, and is configured to place the spool 520 in an unlocked state when the bottle cap 300 is at the engagement position and to place the spool 520 in a locked state when the bottle cap 300 is at the disengagement position. The locking structure prevents the pulling wire 540 from being loosened and downward paid out due to the unlimited state of the winding shaft 520 after the bottle cap 300 is separated from the residue bottle 100, thereby disturbing the normal use.
In the present embodiment, the locking structure includes the second gear 550, the first slide bar 560, the locking rack 570, and the push rod 580. The second gear 550 is coaxially fixedly coupled to the upper end of the spool 520. The first slide bar 560 is vertically and slidably disposed on the bottle cap 300. The locking rack 570 is U-shaped and located outside the second gear 550, and both ends of the locking rack are connected to the upper end of the first slide bar 560. The push rod 580 is disposed at the lower end of the first slide bar 560, one end of the push rod is connected to the lower end of the first slide bar 560, and the other end of the push rod is disposed above the toothed ring 510, so that when the bottle cap 300 is at the fitting position, the toothed ring 510 drives the push rod 580 to move up through the first slide bar 560 to move up to engage with the second gear 550. A first return spring 590 is provided between the first slide bar 560 and the cap 300 to move the locking rack 570 downward to engage with the second gear 550 when the cap 300 is at the disengaged position, so that the spool 520 is locked.
In this embodiment, the pressure adjusting structure further includes a second return spring 630, a second check valve 640, a stopper 650, and a diverting member 660. Sliding seal is provided between the movable plate 620 and the metering ring 400. A second return spring 630 is provided between the movable plate 620 and the metering ring 400. A second check valve 640 is provided on the movable plate 620 for allowing air between the metering ring 400 and the floating ring 410 to be unidirectionally exhausted into the upper chamber through the pressure regulating hole 610. A stopper 650 is provided on the floating ring 410 at the lower side of the pressure adjusting hole 610. The steering component 660 is disposed at one end of the movable plate 620 near the center of the metrology ring 400, and is used for converting the pulling direction of the pull wire 540 to be connected to the movable plate 620 after being along the radial direction of the metrology ring 400. The second check valve 640 is arranged on the movable plate 620, so that negative pressure is formed between the metering ring 400 and the floating ring 410 and the liquid level when the negative pressure suction device sucks out liquid in the residual bottle 100 through the liquid outlet barrel 310, the distance between the metering ring 400 and the floating ring 410 is smaller and smaller, and through the arrangement of the second check valve 640, air between the metering ring 400 and the floating ring 410 is discharged to the upper side of the metering ring 400 from the second check valve 640, so that the distance between the metering ring 400 and the floating ring 410 is smaller, the metering ring 400 is closer to the liquid level, and the reading of the metering ring 400 on the first scale 110 is more accurate. Meanwhile, when the device is used in an inclined mode, one side of the floating plate which is firstly contacted with the emulsion firstly moves upwards and the stopper 650 blocks the pressure regulating hole 610, so that the emulsion is prevented from entering the upper cavity from the pressure regulating hole 610.
In this embodiment, the steering member 660 includes a cross bar and two vertical bars. The vertical rods are symmetrically arranged at both sides of the movable plate 620, and the lower ends of the vertical rods are connected to the metering ring 400. The horizontal pole level sets up, and one end is connected with the montant upper end, and the other end is connected with another montant upper end for pull wire 540 is connected with fly leaf 620 after the winding horizontal pole for pull wire 540 direction of pulling is changed into along the radial direction of measurement ring 400 from the slant to the top.
In the present embodiment, the movable plate 620 is provided with a mating ring 621 and a second sliding rod 622 on both sides. The second slide bar 622 is disposed radially along the metering ring 400, with one end fixed to the metering ring 400 and the other end slidably mounted within the mating ring 621. The second return spring 630 is disposed on the second sliding rod 622, and is used for returning the movable plate 620 to block the upper port of the pressure adjusting hole 610 after the pulling wire 540 is loosened during the process of discharging the negative pressure suction device through the liquid outlet barrel 310. The use of the mating ring 621 and the second slide bar 622 makes the movable plate 620 more stable during the radial sliding along the metering ring 400.
In this embodiment, the pulling structure is provided with a plurality of, and a plurality of pulling structures are along bottle lid 300 circumference equipartition for measurement ring 400 is more steady in rising and decline in-process.
With the above embodiments, the usage principle and the working process of the present invention are as follows: when the bottle cap 300 is rotated and is moved upwards to leave the opening of the residue bottle 100, the bottle cap 300 drives the first gear 530 to revolve around the axis of the bottle cap 300, and simultaneously, the gear ring 510 drives the first gear 530 to drive the winding shaft 520 to rotate, so that the pull wire 540 is wound around the winding shaft 520, and the metering ring 400 is driven to drive the floating ring 410 to move upwards. In the process, the pull wire 540 pulls the movable plate 620 to slide toward the center of the metering ring 400, thereby opening the pressure regulating hole 610 so that air can enter from above the metering ring 400 to below the metering ring 400, and making it easier for the metering ring 400 to slide upward. When the cap 300 is just separated from the opening of the measuring flask 100, the measuring ring 400 is raised to a predetermined height. At this time, the first slide bar 560 moves down with the lock rack 570 by the first return spring 590, and then the lock rack 570 and the second gear 550 are engaged with each other.
After the emulsion is injected into the residual bottle 100, the bottle cap 300 is twisted reversely to screw the lower end of the bottle cap 300 into the mouth of the residual bottle 100, the gear ring 510 stops the push rod 580 to continue downward, so that the first slide rod 560 drives the locking rack 570 to move upward relative to the second gear 550 to disengage, the bottle cap 300 drives the first gear 530 to revolve around the axis of the bottle cap 300 reversely, and simultaneously, the gear ring 510 drives the first gear 530 to drive the winding shaft 520 to rotate reversely, so that the pull wire 540 is separated from the winding shaft 520, and the metering ring 400 slides downward. In the process, under the gravity of the metering ring 400, the pull wire 540 is in a tensioned state, and the movable plate 620 is still at a position not blocking the pressure regulating hole 610, so that the metering ring 400 with the floating ring 410 slides down to the surface of the emulsion smoothly. When the floating ring 410 stops moving downwards under the action of buoyancy, the metering ring 400 continues to press the floating plate downwards under the action of gravity, so that the distance between the metering ring 400 and the floating plate is gradually reduced until the stop 650 blocks the lower end of the pressure regulating hole 610, and meanwhile, under the driving of the second return spring 630, the movable plate 620 blocks the upper end of the pressure regulating hole 610 along the second sliding rod 622. At this time, the cap 300 is continuously rotated in the reverse direction to the sealing state, and the pull wire 540 is in a released state. The metering ring 400 now reads at the first scale 110 as the volume of emulsion added to the balance bottle 100.
When the baby sucks on the nipple 700 and sucks out the emulsion in the residual bottle 100 through the liquid outlet cylinder 310, negative pressure is formed between the metering ring 400 and the floating ring 410 and the liquid surface, so that the metering ring 400 slides downwards along the liquid surface, and the piston 220 moves upwards to allow the air in the usage cylinder 200 to enter the residual bottle 100 under the action of atmospheric pressure. At this time, the metering ring 400 indicates the remaining amount of the lotion in the balance bottle 100 on the first scale 110, and the piston 220 indicates the usage amount of the lotion sucked out of the balance bottle 100 on the second scale 230, so that the user can obtain the usage information of the lotion at the first time. And when the residual amount bottle 100 is tilted, since the metering ring 400 and the residual amount bottle 100 are slidably sealed, the negative pressure between the metering ring 400 and the emulsion makes the emulsion more stable when the residual amount bottle 100 shakes, and the amount of the emulsion can be quickly read out by the position of the piston 220.
Further, the second check valve 640 is arranged on the movable plate 620, so that when a baby sucks the nipple 700 and sucks out the emulsion in the residual bottle 100 through the liquid outlet cylinder 310, negative pressure is formed between the metering ring 400 and the floating ring 410 and the liquid level, the distance between the metering ring 400 and the floating ring 410 is smaller and smaller, and by arranging the second check valve 640, air between the metering ring 400 and the floating ring 410 is discharged to the upper side of the metering ring 400 from the second check valve 640, so that the distance between the metering ring 400 and the floating ring 410 is smaller, the metering ring 400 is closer to the liquid level, and the reading of the metering ring 400 on the first scale 110 is more accurate.
The second aspect of the present invention provides an embodiment of a multi-range flow measuring mechanism, which has the same structure as the multi-range flow measuring mechanism of the above-mentioned embodiment of the infant breast-pumping amount monitoring device, and is not repeated herein.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A multi-range flow metering mechanism is characterized in that: the method comprises the following steps:
the residual bottle has a first axis; the peripheral wall of the allowance bottle is provided with a first scale;
the bottle cap is arranged above the residual bottle; the lower end of the bottle cap can be arranged in the residual bottle mouth in a rotating and up-and-down sliding manner; the bottle cap has a corresponding matching position, a middle position and a disengaging position when the bottle mouth of the allowance bottle slides; when the bottle cap is in the middle position, the bottle cap moves downwards to the matching position in a forward rotation mode and moves upwards to the disengaging position in a reverse rotation mode, the bottle cap is sealed with the residual bottle when in the matching position, and the bottle cap is separated from the residual bottle when in the disengaging position;
the liquid outlet cylinder is arranged in the residual bottle, the upper end of the liquid outlet cylinder penetrates through the bottle cap to be communicated with the negative pressure suction device, and the lower end of the liquid outlet cylinder is positioned at the bottom of the residual bottle; a first one-way valve is arranged in the liquid outlet cylinder; the conduction direction of the first one-way valve is that liquid flows from the residual amount bottle to the liquid outlet cylinder in one way;
the axis of the metering ring is superposed with the first axis and is arranged in the residue bottle; the metering ring is sleeved on the outer side of the liquid outlet cylinder in a vertically sliding manner, and divides the residual bottle into an upper cavity and a lower cavity which can not be communicated;
a floating ring which is arranged at the lower side of the metering ring in a manner of moving up and down;
the dosage cylinders are arranged on two sides of the allowance bottle; a piston capable of sliding up and down is arranged in the dosage cylinder; the piston divides the measuring cylinder into an upper cylinder body and a lower cylinder body which can not be conducted; the upper cylinder body is communicated with the upper cavity, and the lower cylinder body is provided with an air inlet; the outer peripheral wall of the measuring cylinder is provided with a second scale;
the traction structure is configured to drive the metering ring and the floating ring to ascend by a preset stroke in the process of moving the bottle cap to the disengaging position above the reverse rotation, and drive the metering ring and the floating ring to float on the liquid after descending by the preset stroke in the process of moving the bottle cap to the matching position below the forward rotation;
the pressure regulating structure comprises a pressure regulating hole and a movable plate, and the pressure regulating hole is a through hole in the metering ring; the movable plate is arranged on the metering ring in a sliding manner along the radial direction of the metering ring and is positioned above the pressure regulating hole; the pressure regulating structure is configured in such a way that in the process of moving the bottle cap upwards, the traction structure drives the movable plate to slide so as to enable air to enter the lower cavity through the pressure regulating hole, and in the process of discharging liquid outwards through the liquid outlet barrel by the negative pressure suction device, the traction structure drives the movable plate to block the pressure regulating hole so as to prevent air in the upper cavity from entering the lower cavity and enable the lower cavity to be in a negative pressure state.
2. A multi-range flow metering mechanism according to claim 1, wherein: the traction structure also comprises a gear ring, a winding shaft, a first gear and a traction wire; the gear ring is arranged outside the bottle cap and fixed at the upper end of the residual bottle; the winding shaft is arranged between the gear ring and the bottle cap; the winding shaft is rotatably arranged on the outer side of the side peripheral wall of the bottle cap; the first gear is coaxially and fixedly connected to the lower end of the winding shaft; the first gear is meshed with the inner peripheral wall of the gear ring; one end of the traction wire is connected to the winding shaft, and the other end of the traction wire is connected to the movable plate; when the bottle cap rotates forwards, the gear ring drives the winding shaft to rotate so that the traction line drives the metering ring to move downwards, and when the bottle cap rotates backwards, the gear ring drives the winding shaft to rotate so that the traction line drives the metering ring to move upwards.
3. A multi-range flow metering mechanism according to claim 2, wherein: the traction structure further comprises a locking structure; the locking structure is provided between the spool and the ring gear and is configured to place the spool in an unlocked state when the cap is in the engaged position and to place the spool in a locked state when the cap is in the disengaged position.
4. A multi-range flow metering mechanism according to claim 3, wherein: the locking structure comprises a second gear, a first sliding rod, a locking rack and a push rod;
the second gear is coaxially and fixedly connected to the upper end of the winding shaft;
the first sliding rod is vertically arranged and can be arranged on the bottle cap in a vertically sliding manner; the locking rack is U-shaped and positioned outside the second gear, and two ends of the locking rack are connected with the upper end of the first sliding rod;
the push rod is arranged at the lower end of the first slide rod, one end of the push rod is connected with the lower end of the first slide rod, and the other end of the push rod is arranged above the toothed ring, so that when the bottle cap is at a matching position, the toothed ring drives the locking rack to move upwards through the first slide rod to be meshed with the second gear;
and a first return spring is arranged between the first sliding rod and the bottle cap and used for enabling the locking rack to move downwards to be meshed with the second gear when the bottle cap is at a separation position.
5. A multi-range flow metering mechanism according to any one of claims 1 to 4, wherein: the pressure regulating structure also comprises a second reset spring, a second one-way valve, a stop block and a steering piece;
the movable plate and the metering ring are in sliding seal;
the second return spring is arranged between the movable plate and the metering ring;
the second one-way valve is arranged on the movable plate and used for enabling air between the metering ring and the floating ring to be discharged upwards into the cavity in a one-way mode through the pressure regulating hole;
the stop block is arranged on the floating ring and is positioned at the lower side of the pressure regulating hole;
the steering piece is arranged at one end of the movable plate close to the circle center of the metering ring and used for converting the traction direction of the traction line into the direction along the diameter of the metering ring and then connecting the traction direction to the movable plate.
6. A multi-range flow metering mechanism according to claim 5, wherein: the steering part comprises a cross rod and two vertical rods; the vertical rods are symmetrically arranged on two sides of the movable plate, and the lower ends of the vertical rods are connected to the metering ring; the horizontal setting of horizontal pole, one end is connected with the montant upper end, and the other end is connected with another montant upper end for the pull wire is connected with the fly leaf behind the winding horizontal pole.
7. A multi-range flow metering mechanism according to claim 6, wherein: both sides of the movable plate are provided with a matching ring and a second sliding rod; the second sliding rod is arranged along the radial direction of the metering ring, one end of the second sliding rod is fixed on the metering ring, and the other end of the second sliding rod is slidably arranged in the matching ring; the second reset spring is arranged on the second sliding rod and used for resetting the movable plate to block the upper port of the pressure regulating hole after the pull wire is loosened in the process that the negative pressure suction device discharges liquid outwards through the liquid outlet barrel.
8. A multi-range flow metering mechanism according to claim 1, wherein: the traction structure is provided with a plurality of traction structures which are uniformly distributed along the circumferential direction of the bottle cap.
9. An infant breast pumping monitoring device comprising a multi-range flow metering mechanism, characterized in that: the multi-range flow metering mechanism of any one of claims 1 to 8.
10. An infant breast pumping monitoring device according to claim 9, wherein: the utility model also comprises a nipple; the nipple is arranged at the upper end of the bottle cap and communicated with the upper end of the liquid outlet cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210353115.3A CN114427896B (en) | 2022-04-06 | 2022-04-06 | Multi-range flow metering mechanism and infant breast milk absorption amount monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210353115.3A CN114427896B (en) | 2022-04-06 | 2022-04-06 | Multi-range flow metering mechanism and infant breast milk absorption amount monitoring device |
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| CN114427896A CN114427896A (en) | 2022-05-03 |
| CN114427896B true CN114427896B (en) | 2022-06-21 |
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| CN202210353115.3A Active CN114427896B (en) | 2022-04-06 | 2022-04-06 | Multi-range flow metering mechanism and infant breast milk absorption amount monitoring device |
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| CN114427896A (en) | 2022-05-03 |
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