CN113490838A - Flowmeter, flowmeter assembly and movable platform - Google Patents
Flowmeter, flowmeter assembly and movable platform Download PDFInfo
- Publication number
- CN113490838A CN113490838A CN202080016219.4A CN202080016219A CN113490838A CN 113490838 A CN113490838 A CN 113490838A CN 202080016219 A CN202080016219 A CN 202080016219A CN 113490838 A CN113490838 A CN 113490838A
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- flowmeter
- circuit board
- flow meter
- assembly
- sidewall
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000012530 fluid Substances 0.000 claims abstract description 37
- 238000005259 measurement Methods 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims description 33
- 230000013011 mating Effects 0.000 claims description 14
- 238000005507 spraying Methods 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 11
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 230000000717 retained effect Effects 0.000 claims 2
- 238000000034 method Methods 0.000 description 7
- 230000004308 accommodation Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000005672 electromagnetic field Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D47/00—Equipment not otherwise provided for
-
- 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
- G01F15/18—Supports or connecting means for meters
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Measuring Volume Flow (AREA)
Abstract
A flowmeter comprises a shell (1), and a measuring tube assembly (2) and a circuit board assembly (3) which are assembled in a space enclosed by the shell (1). The measuring tube assembly (2) comprises a measuring tube (20). The measurement pipe (20) comprises an inlet (2021) and an outlet (2022) and a channel (2023) communicating the inlet (2021) and the outlet (2022). A passage (2023) for fluid to pass through. The circuit board assembly (3) comprises a circuit board (30) and a first plug end (31) and a second plug end (32) fixed to the circuit board (30). The housing (1) comprises a first perforation (110) and a second perforation (120). The first through hole (110) is exposed out of the first plug end (31). The second through hole (120) is exposed out of the second plug end (32). The first inserting end (31) is used for being inserted with the second inserting end (32) of the second flowmeter to achieve electrical connection among the plurality of flowmeters, the flowmeters with proper number can be assembled according to the number of the water outlet channels of the water pump, the flowmeters do not need to be additionally designed and manufactured, and cost is saved.
Description
Technical Field
The invention relates to the technical field of movable platforms, in particular to a flowmeter, a flowmeter assembly and a movable platform.
Background
In industrial and agricultural applications, it is often necessary to detect fluids (gases or fluids) that have been sprayed. The spraying flow is low, so that the spraying is leaked or the protection is not in place, and the high flow causes adverse effects such as seedling burning. The associated movable platform utilizes a flow meter to detect the flow rate of the fluid that has been sprayed. However, the current flow meter is a single-channel flow meter, the water pump has a plurality of water outlet channels, and one flow meter can only detect the total amount of fluid flowing out of the water pump and cannot detect the amount of fluid flowing out of each water outlet channel. In order to ensure the uniformity of spraying, the fluid quantity flowing out of each water outlet channel of the water pump needs to be detected.
Disclosure of Invention
The invention provides a flowmeter, a flowmeter assembly and a movable platform.
The invention provides a flow meter which can be used for being assembled to another flow meter, the flow meter comprises a shell, and a measuring tube component and a circuit board component which are assembled in a space enclosed by the shell, wherein the measuring tube component comprises a measuring tube, the measuring tube comprises an inlet, an outlet and a channel communicated with the inlet and the outlet, the channel is used for fluid to pass through, the circuit board component comprises a circuit board and a first inserting end and a second inserting end which are fixed to the circuit board, the shell comprises a first through hole and a second through hole, the first through hole is used for exposing the first inserting end, the second through hole is used for exposing the second inserting end, and the first inserting end is used for being inserted with the second inserting end of another flow meter.
Another aspect of the invention provides a flow meter assembly comprising: and the first plugging end of one flowmeter is plugged with the second plugging end of the other flowmeter adjacent to the first plugging end of the other flowmeter.
Yet another aspect of the present invention provides a moveable platform for spraying a fluid, the moveable platform comprising a spraying system comprising a water pump, a spray head and the above-described flow meter; wherein fluid flows from the water pump through the flow meter and out of the spray head.
According to the flowmeter provided by the embodiment of the invention, the flowmeter can be combined with other flowmeters according to the number of the water outlet channels of the water pump, so that the cost is saved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a perspective view of a movable platform according to an embodiment of the present invention;
FIG. 2 is an exploded view of a flow meter according to an embodiment of the invention;
FIG. 3 is a perspective view of the housing of the flow meter shown in FIG. 2;
FIG. 4 is a perspective view of the measurement tube, first sensing electrode, second sensing electrode, and ground electrode of the flow meter shown in FIG. 2 prior to assembly;
FIG. 5 is an assembled view of the flow meter shown in FIG. 2;
FIG. 6 is a side view of the flow meter shown in FIG. 5;
FIG. 7 is a perspective view of a flow meter assembly according to an embodiment of the invention;
FIG. 8 is a cross-sectional schematic view of the flow meter assembly shown in FIG. 7;
FIG. 9 is an enlarged view of the circled portion A of the cross-sectional view of FIG. 8;
fig. 10 is an enlarged view of a circled portion B of the cross-sectional view shown in fig. 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent 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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
The flowmeter comprises a first inserting end and a second inserting end, wherein the first inserting end can be used for being inserted with the second inserting end of another flowmeter so as to realize the electrical connection among the flowmeters. In one embodiment, the first mating end is a plug and the second mating end is a receptacle. However, the invention is not limited thereto, and in another embodiment, the first plug end is a socket and the second plug end is a plug. The flow meters with proper quantity can be assembled according to the quantity of the water outlet channels of the water pump so as to detect the quantity of fluid flowing out of each water outlet channel of the water pump; simultaneously, can be according to the nimble quantity that sets up the flowmeter of the quantity of the delivery channel of water pump to the demand of the different movable platform of adaptation, when the quantity of the delivery channel of the water pump of movable platform changes, according to the quantity increase of the delivery channel of water pump or reduce the quantity of flowmeter can, need not to design in addition and make the flowmeter, saved the cost. The flow meter, flow meter assembly and movable platform of the present invention are described in detail below with reference to the accompanying drawings. In the following embodiments, features of the embodiments may be combined with each other without conflict.
The invention provides a flow meter which can be used for being assembled to another flow meter, the flow meter comprises a shell, and a measuring tube component and a circuit board component which are assembled in a space enclosed by the shell, wherein the measuring tube component comprises a measuring tube, the measuring tube comprises an inlet, an outlet and a channel communicated with the inlet and the outlet, the channel is used for fluid to pass through, the circuit board component comprises a circuit board and a first inserting end and a second inserting end which are fixed to the circuit board, the shell comprises a first through hole and a second through hole, the first through hole is used for exposing the first inserting end, the second through hole is used for exposing the second inserting end, and the first inserting end is used for being inserted with the second inserting end of another flow meter.
Another aspect of the invention provides a flow meter assembly comprising: and the first plugging end of one flowmeter is plugged with the second plugging end of the other flowmeter.
Yet another aspect of the present invention provides a moveable platform for spraying a fluid, the moveable platform comprising a spraying system comprising a water pump, a spray head and the above-described flow meter; wherein fluid flows from the water pump through the flow meter and out of the spray head.
The movable platform includes an aircraft, a robot, an autonomous vehicle, and the like, and the movable platform is mounted with a detection device including a radar, a distance measurement sensor, and the like.
Referring to fig. 1, the movable platform (e.g., drone) of the present invention can be applied in industrial and agricultural fields to detect sprayed fluid (gas or liquid). For example, spraying of a pesticide or the like may be performed. The movable platform comprises a fuselage 6, wings 7 connected to the fuselage 6 and a spraying system. The sprinkler system comprises a tank 8, a water pump (not shown) connected to the tank 8, a flow meter and a spray head 9 connected to the flow meter. The movable platform includes an aircraft or the like. The fluid in the tank 8 flows from the water pump through the flow meter and is ejected from the head 9. The water pump is provided with one or more water outlet channels, and the flow meter is used for detecting the amount of fluid flowing through the water outlet channels of the water pump. The spray head 9 atomizes the fluid and then sprays the fluid out, so that uniform spraying is facilitated.
Referring to fig. 2 to 3, the flow meter of the embodiment of the present invention includes a casing 1, a measurement pipe assembly 2 and a circuit board assembly 3 assembled to the casing 1, and a seal 4 between the casing 1 and the measurement pipe assembly 2. The housing 1 may be made of plastic or other lighter materials to reduce the weight of the flowmeter. The housing 1 includes a top wall 10, and a first sidewall 11, a second sidewall 12, a third sidewall 13, and a fourth sidewall 14 connected to the top wall 10. The first side wall 11 faces the second side wall 12. The third side wall 13 faces the fourth side wall 14. The top wall 10, the first side wall 11, the second side wall 12, the third side wall 13 and the fourth side wall 14 enclose a space 102. The circuit board assembly 3 and the measuring tube assembly 2 are partly located within the space 102.
The housing 1 comprises a first perforation 110 through the first side wall 11, a second perforation 120 through the second side wall 12 and a third perforation 101 through the top wall 10. The first through hole 110 has a rectangular shape and is located approximately at the middle of the upper end of the first sidewall 11. The first through-hole 110 and the second through-hole 120 have the same shape and size. The projection of the first perforation 110 on the second sidewall 12 overlaps the second perforation 120. The shape, size and position of the first through hole 110 and the second through hole 120 are not limited in the present invention, and may be set according to actual requirements.
The housing 1 further includes a first fixing portion 112 and a third fixing portion 113 disposed on the first sidewall 11, and a second fixing portion 122 and a fourth fixing portion 123 disposed on the second sidewall 12. The first fixing portion 112 and the third fixing portion 113 are respectively located at the middle positions of the upper end and the lower end of the first sidewall 11. The second fixing portion 122 and the fourth fixing portion 123 are respectively located at the middle positions of the upper end and the lower end of the second sidewall 12. The first through hole 110 is located between the first fixing portion 112 and the third fixing portion 113. The distance between the first through hole 110 and the first fixing portion 112 is smaller than the distance between the first through hole 110 and the third fixing portion 113.
The first fixing portion 112 and the third fixing portion 113 are through holes, and the second fixing portion 122 and the fourth fixing portion 123 are buckles. In other embodiments, one of the first fixing portion 112 and the second fixing portion 122 is a through hole, and the other is a buckle, which can be configured according to actual requirements. In other embodiments, one of the second fixing portion 122 and the fourth fixing portion 123 is a through hole, and the other is a buckle, which can be configured according to actual requirements.
Referring to fig. 2 and 4, the measuring tube assembly 2 includes a measuring tube 20, a first detecting electrode 21, a second detecting electrode 22, a pair of ground electrodes 23 and a pair of electromagnetic assemblies 24 that are limited to the measuring tube 20, a first fixing member 25 fixed to the first detecting electrode 21, a second fixing member 26 fixed to the second detecting electrode 22, a pair of third fixing members 27 respectively fixed to the pair of ground electrodes 23, and two pairs of fourth fixing members 28 respectively fixed to the measuring tube 20. The first detection electrode 21 and the second detection electrode 22 are detachable from the pair of grounding electrodes 23, so that the replacement is convenient. The first detection electrode 21 is provided with a first contact portion 210. The second detection electrode 22 is provided with a second contact portion 220. The ground electrode 23 is provided with a third contact portion 230.
The measurement tube 20 may be plastic or other material that is relatively light and easily penetrated by a magnetic field to reduce the weight of the flowmeter. The measurement pipe 20 comprises a base plate 201 and a tubular portion 202 extending from the base plate 201. The base plate 201 is fixed to the housing 1. The base plate 201 is substantially square and includes a plurality of first through holes 2010. The tubular portion 202 is assembled into the space 102 of the housing 1. The tubular portion 202 includes an inlet 2021 and an outlet 2022, and a passage 2023 communicating the inlet 2021 and the outlet 2022, the passage 2023 being for fluid to pass through. The channel 2023 extends through the tubular portion 202.
Referring to fig. 3, the housing 1 includes a second through hole 103 disposed corresponding to the first through hole 2010. The flowmeter comprises a plurality of fifth fixtures 5. The fifth fixing member 5 is partially inserted through the first through hole 2010 and assembled into the second through hole 103 to be fixed to the casing 1, and further fixes the measurement pipe 20 to the casing 1. The sealing member 4 is located between the housing 1 and the bottom plate 201. Alternatively, the bottom plate 201 may be provided separately from the tubular portion 202. The base plate 201 is provided with a hole through which the tubular portion 202 passes. Referring to fig. 5 to 6, when the bottom plate 201 is assembled with the housing 1, the top end of the tubular portion 202 passes through the third through hole 101 of the top wall 10 of the housing 1, and the bottom end of the tubular portion 202 extends beyond the bottom plate 201.
Referring to fig. 2, 4 and 7, the tubular portion 202 includes a first side wall 2024 and a second side wall 2025 facing each other, a pair of third side walls 2026 connecting the first side wall 2024 and the second side wall 2025, a pair of first fixing posts 2027 extending from the first side wall 2024, and a pair of second fixing posts 2028 extending from the second side wall 2025. The first side wall 2024 is provided with a plurality of first accommodation holes 20241 communicating with the passages 2023. The first accommodating holes 20241 are spaced apart from the pair of first fixing posts 2027.
Referring to fig. 4 and 10, the second side wall 2025 is provided with a second receiving hole (not labeled) communicating with the channel 2023. The first detection electrode 21 and the pair of ground electrodes 23 are respectively assembled to the corresponding first accommodation holes 20241. The second detection electrode 22 is assembled to the second accommodation hole. The first receiving hole 20241 and the second receiving hole are sealed to prevent the fluid in the channel 2023 from flowing out through the first receiving hole 20241 and the second receiving hole, thereby preventing the fluid from damaging the circuit board assembly 3. The first detection electrode 21 is located between a pair of ground electrodes 23. In order to better generate the induced electromotive force between the first detection electrode 21 and the second detection electrode 22, in some embodiments, the first detection electrode 21 and the second detection electrode 22 are coaxially disposed, that is, the first contact portion 210 of the first detection electrode 21 is opposite to the second contact portion 220 of the second detection electrode 22. Referring to fig. 9 to 10, the first contact portion 210 of the first detection electrode 21, the second contact portion 220 of the second detection electrode 22, and the third contact portion 230 of the ground electrode 23 are located within the channel 2023 to be in contact with the fluid flowing through the channel 2023.
Referring to fig. 2 and 4, a pair of electromagnetic assemblies 24 are respectively connected to the pair of third side walls 2026 for generating electromagnetic fields. A pair of solenoid assemblies 24 are coaxially disposed. Optionally, the axes of the first detection electrode 21 and the second detection electrode 22 are perpendicular to the axis of the electromagnetic assembly 24. The electromagnetic assembly 24 includes a stopper 241 connected to the third side wall 2026, a coil 242 wound around the stopper 241, and a core 243 to be stopped to the stopper 241. The stopper 241 is integrally formed with the tubular portion 202. The limiting part 241 is provided with a limiting hole 2410. The core 243 is assembled to the retaining hole 2410.
Referring to fig. 2, the circuit board assembly 3 includes a circuit board 30 and a first plugging end 31 and a second plugging end 32 fixed to the circuit board 30. The circuit board 30 includes a first circuit board 301, a second circuit board 302, and a flexible circuit board 303 connecting the first circuit board 301 and the second circuit board 302. The first circuit board 301 faces the second circuit board 302. The first mating end 31 is connected to the first circuit board 301. One of the first plug end 21 and the second plug end 32 is a plug, and the other is a socket.
The first plugging end 31 can be assembled and fixed to the first circuit board 301; the first mating end 31 may also be indirectly connected or directly connected to the first circuit board 301, and may be movable with respect to the first circuit board 301. The second mating end 32 is connected to the second circuit board 302. The second plug end 32 can be assembled and fixed to the second circuit board 302; the second plug end 32 can also be indirectly connected or directly connected to the second circuit board 302, and can move relative to the second circuit board 302. The first circuit board 301 is provided with a plurality of first assembling holes 3010. The second circuit board 302 is provided with a plurality of second assembly holes 3020. In one embodiment, the first mating end 31 includes a power line, a ground line, and a data line; wherein the data line in the first plug end 31 is connected to a first data line in the second plug end of another flow meter to enable the data line to transmit data obtained about the flow meter to the other flow meter. Wherein the data comprises a flow rate of the liquid in the flow meter.
The flexible circuit board 303, the first circuit board 301 and the second circuit board 302 form a similar "door" structure. The arrangement direction of the flexible circuit board 303 refers to an extending direction of the flexible circuit board 303 along the first circuit board 301 to the second circuit board 302. The arrangement direction of the flexible circuit board 303 intersects with the axis of the electromagnetic assembly 24, and optionally, the central axis of the flexible circuit board 303 is perpendicular to the axis of the electromagnetic assembly 24. The projections of the conductor loop formed by the flexible circuit board 303 in the electromagnetic field direction are a line, so that the projection area of the conductor loop formed by the flexible circuit board 303 in the electromagnetic field direction can be minimized by the structural design mode, thereby eliminating the influence of differential interference on signals to the maximum extent and providing the measurement accuracy of the flowmeter.
Referring to fig. 2 and 8, after the circuit board assembly 3 is assembled to the measuring pipe assembly 2, the first circuit board 301 is located outside the first side wall 2024 and abuts against the first detecting electrode 21 and the ground electrode 23; the second circuit board 302 is located outside the second sidewall 2025 and abuts against the second detection electrode 22. The flexible circuit board 303 is located on the opposite side of the third side wall 2026. The first circuit board 301 is used for collecting signals of the first detection electrode 21, and the second circuit board 302 is used for detecting signals of the second detection electrode 22, and meanwhile, signal interference can be reduced. Alternatively, the first circuit board 301 and the first detection electrode 21 and the second circuit board 302 and the second detection electrode 22 may be electrically coupled by direct contact or conductive member connection. For example, the first circuit board 301 is provided with a first electrical connection portion, the first detection electrode 21 is provided with a first electrical mating portion, and the first electrical connection portion and the first electrical mating portion are connected in an inserting or butting manner to realize direct electrical coupling connection between the first circuit board 301 and the first detection electrode 21.
Referring to fig. 2 and fig. 8 to 10, the first fixing member 25 is fixed to the first detecting electrode 21 after passing through the corresponding first assembling hole 3010, so as to limit the circuit board assembly 3 and the first detecting electrode 21 to the measuring pipe assembly 2; the second fixing member 26 passes through the corresponding second assembling hole 3020 to fix the second detecting electrode 22 together, so as to limit the circuit board assembly 3 and the second detecting electrode 22 to the measuring pipe assembly 2; the third fixing member 27 is fixed to the ground electrode 23 through the first assembling hole 3010 corresponding thereto to limit the circuit board assembly 3 and the ground electrode 23 to the measurement pipe assembly 2; wherein, a plurality of fourth fixing members 28 are respectively fixed with the first fixing posts 2027 of the measuring pipe assembly 2 after passing through the corresponding first assembling holes 3010, and a plurality of fixing members 28 are respectively fixed with the second fixing posts of the measuring pipe assembly 2 after passing through the corresponding second assembling holes 3020, so as to fix the circuit board assembly 3 to the measuring pipe assembly 2.
Referring to fig. 5 to 6, the first insertion end 31 is assembled into the first through hole 110 of the housing 1, and the second insertion end 32 is assembled into the second through hole 120 of the housing 1. The first mating end 31 may or may not extend through the first through hole 110. The second mating end 32 may or may not extend through the second aperture 120. The first plug end 31 or the second plug end 32 is connected to an external power source to supply power to the flow meter.
The flowmeter of the present invention acquires signals of the first detection electrode 21 and the second detection electrode 22 by using the circuit board 30, and acquires the flow rate of the fluid flowing through the channel 2023. The calculation formula of the flow rate Q of the fluid flowing through the channel 2023 is as follows:
Q＝1/k.UA/Bd (1)
in the formula (1), B is the magnetic field intensity; u is induced electromotive force generated by the first detection electrode 21 and the second detection electrode 22; a is the cross-sectional area of channel 2023; d is the diameter of channel 2023; k is a correction coefficient, and the magnitude of k may be set in consideration of factors such as the fact that the velocity of the fluid in the passage 2023 is not uniform, thereby reducing the error between the flow rate Q of the fluid flowing through the passage 2023 obtained by the calculation of the formula (1) and the flow rate of the fluid actually flowing through the passage 2023.
Alternatively, k is approximately 0.8, e.g., k may be 0.8 ± 0.05. For a particular size of meter for a particular operating condition, the magnitude of k can be calibrated by volumetric (volume of fluid flowing through the channel 2023 over time).
Referring to fig. 7-10, the flow meter assembly of the present invention includes at least two such flow meters. The flow meters with proper quantity can be arranged according to the quantity of the water outlet channels of the water pump which need to be measured. When a plurality of flow meters are assembled, the first plug end 31 of one flow meter is plugged with the second plug end 32 of another flow meter adjacent to the first plug end to transmit power signals and data signals to supply power to the plurality of flow meters, and meanwhile, data signals detected by the plurality of flow meters can be transmitted out; one flowmeter in the flowmeter assembly is connected with one water outlet channel of the water pump so as to detect the flow of fluid flowing through the water outlet channel and also detect the total flow of a plurality of water outlet channels of the water pump; the first fixing part 112 of one flowmeter is fixedly buckled with the second fixing part 122 of the other flowmeter adjacent to the first fixing part, and the third fixing part 113 of one flowmeter is fixedly buckled with the fourth fixing part 123 of the other flowmeter adjacent to the third fixing part, so that the two adjacent flowmeters are fixed together. When the water outlet channel of the water pump is changed, only the flow meters with proper quantity are assembled according to the quantity of the water outlet channels, and the flow meter components do not need to be redesigned and manufactured, so that the cost is saved.
One of the first fixing portion 112 and the second fixing portion 122 is a through hole, and the other is a buckle; one of the second fixing portion 122 and the fourth fixing portion 123 is a through hole, and the other is a buckle; when the flowmeter assembly is assembled, the buckle is assembled into the penetrating hole and is buckled and fixed with the shell 1, and the flowmeter assembly is simple and convenient to assemble and easy to disassemble. The first fixing portion 112 and the third fixing portion 113 are respectively located at the middle positions of the upper end and the lower end of the first sidewall 11; the second fixing portion 122 and the fourth fixing portion 123 are respectively located at the middle positions of the upper end and the lower end of the second sidewall 12, so that the holding force between the plurality of flowmeters is balanced, and the holding stability between the plurality of flowmeters is improved. When the first plugging end 31 is assembled and fixed to the first circuit board 301 and the second plugging end 32 is assembled and fixed to the second circuit board 302, the plugging force between the first plugging end 31 and the second plugging end 32 can also limit two adjacent flowmeters together. The shells 1 of the plurality of flowmeters are respectively attached to reduce the space occupied by the flowmeter assembly; meanwhile, the phenomenon of shaking generated between the flow meters in the moving process of the movable platform is avoided, and the first inserting end 31 and the second inserting end 32 can be effectively and stably connected.
In the embodiment of the invention, the flow meter comprises a first plugging end and a second plugging end, the first plugging end can be used for being plugged with the second plugging end of another flow meter, and a proper number of flow meters can be assembled with other flow meters according to the number of the water outlet channels of the water pump so as to detect the amount of fluid flowing out of each water outlet channel; simultaneously, can be according to the nimble quantity that sets up the flowmeter of the quantity of the delivery channel of water pump to the demand of the different movable platform of adaptation, when the quantity of the delivery channel of the water pump of movable platform changes, according to the quantity increase of the delivery channel of water pump or reduce the quantity of flowmeter can, need not to design in addition and make the flowmeter, saved the cost. When the plurality of flow meters are used for the movable platform, the structure of the movable platform can be made more compact because the plurality of flow meters are assembled together.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be 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. 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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing detailed description of the apparatus provided in the embodiments of the present invention has been presented for the purpose of illustrating the principles and implementations of the present invention by way of specific examples and is provided for the purpose of facilitating understanding of the principles and concepts of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
The disclosure of this patent document contains material which is subject to copyright protection. The copyright is owned by the copyright owner. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the patent and trademark office official records and records.
Claims (21)
1. The utility model provides a flowmeter, can be used for assembling to another flowmeter, its characterized in that, the flowmeter includes the shell and assemble extremely measuring tube subassembly and circuit board subassembly in the space that the shell encloses, measuring tube subassembly is including surveying the pipe, survey the pipe including entry and export and intercommunication the passageway of entry and export, the passageway supplies the fluid to pass through, circuit board subassembly include the circuit board and be fixed to the first end of pegging graft and the second end of pegging graft of circuit board, the shell includes that first perforation and second are perforated, first perforation supplies first end of pegging graft exposes, the second perforates the supply the second end of pegging graft exposes, first end of pegging graft is used for pegging graft with the second end of another flowmeter.
2. The flowmeter of claim 1 wherein said housing comprises a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall connected together, said first sidewall facing said second sidewall, said third sidewall facing said fourth sidewall, said first aperture disposed in said first sidewall, said second aperture disposed in said second sidewall.
3. The flowmeter of claim 2, wherein said housing further comprises a top wall connected to said first, second, third and fourth sidewalls, said top wall being provided with a third aperture through which a top end of said measurement tube passes.
4. The flowmeter of claim 2, wherein said housing further comprises a first fixture disposed on said first sidewall and a second fixture disposed on said second sidewall, said first fixture for holding with a second fixture of another flowmeter.
5. The flowmeter of claim 4, wherein said first and second securing portions are through holes or snap-fits.
6. The flowmeter of claim 5, wherein the housing further comprises a third fixing portion disposed on the first sidewall and a fourth fixing portion disposed on the second sidewall, the third fixing portion is configured to be fixed to a fourth fixing portion of another flowmeter, the third fixing portion and the fourth fixing portion are through holes or buckles, the first fixing portion and the third fixing portion are respectively disposed at upper and lower ends of the first sidewall, and the second fixing portion and the fourth fixing portion are respectively disposed at upper and lower ends of the second sidewall.
7. The flowmeter of any one of claims 1-6, wherein said measurement tube comprises a base plate and a tubular portion extending from said base plate, said base plate being secured to said housing, said passage extending through said tubular portion, a top end of said tubular portion passing out of said housing, and a bottom end of said tubular portion extending beyond said base plate.
8. The flowmeter of claim 7 wherein said bottom plate is sealed from said housing.
9. The flowmeter of claim 7 wherein said measurement tube assembly includes a first sensing electrode, a second sensing electrode and a pair of electromagnet assemblies secured to said tubular portion, said first sensing electrode including a first contact portion positioned within said passage, said second sensing electrode including a second contact portion positioned within said passage, said first and second contact portions for contacting fluid flowing through said passage.
10. The flowmeter of claim 9, wherein the electromagnetic assembly comprises a stop, a coil, and a core, the stop being integrally formed with the tubular portion, the coil being wound around the stop, the stop being provided with a stop hole, the core being assembled to the stop hole.
11. The flowmeter of claim 9, wherein the circuit board assembly is secured to the tubular portion, the circuit boards include a first circuit board and a second circuit board connected together, the first circuit board faces the second circuit board, the first plug end is connected to the first circuit board, the first plug end is plugged with a second plug end of another flowmeter to transmit a power signal or a power signal and a data signal, the second plug end is connected to the second circuit board, the first circuit board abuts against the first detection electrode, and the second circuit board abuts against the second detection electrode.
12. The flow meter of claim 11, wherein the circuit board assembly comprises a flexible circuit board connecting the first circuit board and the second circuit board.
13. The flowmeter of claim 11, wherein said first circuit board is provided with a first assembly hole, said second circuit board is provided with a second assembly hole, and said flowmeter comprises a first fixing member and a second fixing member, said first fixing member passing through said first assembly hole and being fixed to said first detection electrode, said second fixing member passing through said second assembly hole and being fixed to said second detection electrode.
14. The flowmeter of claim 1,
the first plug end comprises a power line, a ground line and a data line;
wherein the data line in the first mating end is connected to a first data line in the second mating end of another flow meter to enable the data line to transmit data obtained about the flow meter to the other flow meter.
15. A flow meter assembly, comprising: at least two flow meters according to any of claims 1 to 3 and 7 to 14, wherein the first plugging end of one flow meter is plugged with the second plugging end of another flow meter adjacent thereto.
16. The flowmeter assembly of claim 15 wherein said housing comprises a first fixture and a second fixture, wherein the first fixture of one flowmeter is retained with the second fixture of another flowmeter adjacent thereto to secure the two flowmeters together.
17. The flowmeter assembly of claim 16 wherein said first and second fastening portions are one of a through hole and the other of a snap.
18. The flowmeter assembly of claim 16, wherein the housing further comprises a third securing portion and a fourth securing portion, one of the third securing portion and the fourth securing portion being a through hole and the other being a snap, the first securing portion and the third securing portion being located on a same side of the housing, the second securing portion and the fourth securing portion being located on another side of the housing, wherein the third securing portion of one flowmeter is retained with the fourth securing portion of another flowmeter adjacent thereto.
19. The flowmeter assembly of claim 15,
the first plug end comprises a power line, a ground line and a data line;
wherein the data line in the first mating end is connected to a first data line in the second mating end of another flow meter to enable the data line to transmit data obtained about the flow meter to the other flow meter.
20. A movable platform for spraying a fluid, the movable platform comprising a spraying system comprising a water pump, a spray head, and a flow meter according to any one of claims 1 to 14; wherein fluid flows from the water pump through the flow meter and out of the spray head.
21. A movable platform for spraying a fluid, the movable platform comprising a spraying system comprising a water pump, a spray head, and a flow meter assembly according to any one of claims 15 to 19; wherein fluid flows from the water pump through the flow meter and out of the spray head.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2020/083307 WO2021196206A1 (en) | 2020-04-03 | 2020-04-03 | Flow meter, flow meter assembly and mobile platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113490838A true CN113490838A (en) | 2021-10-08 |
Family
ID=77927579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080016219.4A Pending CN113490838A (en) | 2020-04-03 | 2020-04-03 | Flowmeter, flowmeter assembly and movable platform |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113490838A (en) |
| WO (1) | WO2021196206A1 (en) |
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| US20190285444A1 (en) * | 2018-03-13 | 2019-09-19 | Azbil Corporation | Electromagnetic flowmeter |
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| WO2021196206A1 (en) | 2021-10-07 |
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