CN221037526U

CN221037526U - Flow sensor and water inlet valve

Info

Publication number: CN221037526U
Application number: CN202322590728.1U
Authority: CN
Inventors: 赵江; 张见堂
Original assignee: Zhejiang Huayi Precision Machinery Co ltd
Current assignee: Zhejiang Huayi Precision Machinery Co ltd
Priority date: 2023-09-22
Filing date: 2023-09-22
Publication date: 2024-05-28
Anticipated expiration: 2033-09-22

Abstract

The utility model belongs to the field of water inlet valves, and particularly relates to a flow sensor and a water inlet valve, which are used for solving the problem of inconvenient maintenance of the existing flow sensor. The utility model has the advantages that the impeller and the Hall sensing components are respectively arranged on the two sides of the installation cover, and then the installation cover is arranged on the water inlet valve, when the flow sensor is in fault and needs to be overhauled, the installation cover can be disassembled, the water inlet valve is not required to be disassembled, and the operation is convenient.

Description

Flow sensor and water inlet valve

Technical Field

The utility model belongs to the field of water inlet valves, and particularly relates to a flow sensor and a water inlet valve.

Background

The water inlet valve is a common device in the waterway pipeline, water is connected into the waterway pipeline after the water inlet valve is connected with a water supply network, water flow can be controlled through the water inlet valve, and a flow sensor is arranged on the water inlet valve to detect the water flow.

The existing flow sensor generally comprises an impeller, a magnet, a Hall sensing element and a transmission line, wherein the impeller is rotationally connected to the inside of a valve body, the magnet is distributed around a rotating shaft of the impeller, the rotating shaft of the impeller is perpendicular to the flowing direction of water in the valve body, when the water flows from the inside of the valve body, the impeller rotates, the Hall sensing element is fixedly arranged on the valve body, and when the impeller rotates, sensing occurs between the Hall sensing element and a magnetic field of the magnet, so that signals can be generated and transmitted through the transmission line.

The following problems exist in the related art: the flow sensor and the water inlet valve are of an integrated structure, the impeller is arranged in the valve body, and when the flow sensor fails and needs to be overhauled, the water inlet valve needs to be disassembled, the operation is complex, and the labor intensity of overhauling staff is improved.

Disclosure of utility model

In order to facilitate overhaul of the flow sensor, the utility model provides the flow sensor and the water inlet valve.

The flow sensor provided by the utility model adopts the following technical scheme:

The utility model provides a flow sensor, includes the impeller and sets up the magnet on the impeller, magnet is along the rotatory axle of impeller to setting up, still includes installation lid and hall response subassembly, the impeller can dismantle connect in set up in one side of installation lid, the impeller with rotate between the installation lid and be connected, hall response subassembly can dismantle connect in the opposite side of installation lid.

Through adopting above-mentioned technical scheme, when this flow sensor uses the installation, install impeller and hall sensing subassembly in the both sides of installation lid respectively, the installation lid is installed on the water intaking valve, makes the impeller be arranged in the water intaking valve, and the water flow drives impeller drive magnet rotation in the water intaking valve, and hall sensing subassembly takes place the response and can detect the discharge in the water intaking valve, when this flow sensor breaks down and need overhaul, can dismantle the installation lid, need not to dismantle the water intaking valve, convenient operation.

As a further preferable mode, a first mounting groove for accommodating the impeller is formed in one side of the mounting cover, and a second mounting groove for accommodating the hall sensing assembly is formed in the other side of the mounting cover.

Through adopting above-mentioned technical scheme, impeller installs in first mounting groove, and hall sensing assembly installs in the second mounting groove, improves the installation stability.

As further preferable, the device further comprises a central shaft and a shaft sleeve, wherein the first mounting groove is provided with a plug-in groove for plugging the central shaft, the impeller is rotationally connected with the central shaft, the rotating shaft of the impeller and the central shaft are coaxially arranged, and the shaft sleeve is fixedly connected to the impeller and is positioned between the impeller and the central shaft (5).

Through adopting above-mentioned technical scheme, the center pin is pegged graft in the jack groove, and the impeller sets up on the center pin, further improves impeller's stability, and reduces the frictional force between impeller and the center pin through the axle sleeve.

As a further preferable mode, a placing groove for accommodating the magnet is formed in one side, close to the mounting cover, of the impeller.

Through adopting above-mentioned technical scheme, magnet setting shortens the distance between magnet and the impeller in the standing groove, makes the impeller more stable when rotating, the production of noise abatement.

As a further preferred, the hall sensing assembly comprises a PCB circuit board provided with a hall sensing element, a plug-in male head, a plug-in female head and a conductive wire, wherein the PCB circuit board is arranged on the mounting cover, the plug-in male head is arranged on the mounting cover and electrically connected with the PCB circuit board, the plug-in female head is arranged at the end part of the conductive wire and electrically connected with the conductive wire, and the plug-in male head is in plug-in fit with the plug-in female head.

Through adopting above-mentioned technical scheme, peg graft public head and peg graft female head grafting after, realize the electric connection of conducting wire and PCB circuit board, produce the signal after taking place the response between PCB circuit board and the magnet, conduct through the conducting wire, when needs change the conducting wire, make peg graft public head and peg graft female head separation can, easy operation is convenient.

As a further preferable mode, a first sealing ring is arranged on the periphery of the mounting cover, and a positioning groove for accommodating the first sealing ring is formed in the mounting cover.

By adopting the technical scheme, when the installation cover is installed, the first sealing ring is positioned between the installation cover and the water inlet valve, so that the tightness between the installation cover and the water inlet valve is improved.

As a further preferable aspect, a positioning member is provided on a side wall of the mounting cover.

Through adopting above-mentioned technical scheme, can carry out accurate installation through the setting element when the installation lid is installed, improve the precision and the installation effectiveness of installation.

The utility model provides a water inlet valve which adopts the following technical scheme:

The utility model provides a water intaking valve, includes valve body and above-mentioned flow sensor, the inside passageway that is provided with of valve body, the passageway extends to the both ends of valve body and forms water inlet and delivery port, the mounting hole with the passageway intercommunication has been seted up to the one end that is close to the delivery port on the valve body, installation lid and mounting hole embedding adaptation, the impeller is located the passageway.

Through adopting above-mentioned technical scheme, when flow sensor installs, install the mounting hole department of mounting cover on the valve body, the water in the passageway drives impeller rotation when discharging from the delivery port, and water is stable gradually after entering the passageway from the water inlet to make impeller rotation stable, realization that can be better detects discharge.

As a further preferred aspect, the inlet valve further comprises a fixing washer, the fixing washer is connected to the inner wall of the channel, and a groove which is in plug-in fit with the central shaft is formed in the fixing washer.

Through adopting above-mentioned technical scheme, in the center pin inserted the recess, more stable when making impeller rotate has further improved the detection accuracy to the discharge.

As a further preferable mode, the water inlet valve further comprises a flow limiting ring, the flow limiting ring is detachably connected to the water inlet, a second sealing ring is arranged on the periphery of the flow limiting ring, and a limiting groove for accommodating the second sealing ring is formed in the flow limiting ring.

Through adopting above-mentioned technical scheme, set up the restriction ring, insert the valve body in the pipeline again, make the water in the pipeline get into in the valve body more stable, and improve the leakproofness between restriction ring and the valve body through the second sealing washer.

In summary, the utility model at least comprises the following beneficial technical effects:

1. When the flow sensor is used and installed, the impeller and the Hall sensing assembly are respectively installed on two sides of the installation cover, the installation cover is installed on the water inlet valve, the impeller is positioned in the water inlet valve, the water in the water inlet valve drives the impeller to drive the magnet to rotate, the Hall sensing assembly senses water flow in the water inlet valve, and when the flow sensor fails and needs to be overhauled, the installation cover can be detached without disassembling the water inlet valve, so that the flow sensor is convenient to operate;

2. After the male plug and the female plug are plugged, the electrical connection between the conductive wire and the PCB is realized, signals are generated after induction occurs between the PCB and the magnet, the signals are conducted through the conductive wire, and when the conductive wire needs to be replaced, the male plug and the female plug are separated;

3. When the flow sensor is installed, the installation cover is installed at the installation hole on the valve body, the impeller is driven to rotate when water in the channel is discharged from the water outlet, and the water is gradually stabilized after entering the channel from the water inlet, so that the impeller is stabilized in rotation, and water flow can be better detected.

Drawings

FIG. 1 is a schematic elevational view of an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of FIG. 1 taken along line A-A;

Fig. 3 is a schematic view showing the overall structure of an impeller according to an embodiment of the present utility model.

The same reference numbers are used throughout the drawings to reference like elements or structures, wherein:

1. An impeller; 11. a placement groove; 2. a magnet; 3. a mounting cover; 31. a first mounting groove; 32. a second mounting groove; 33. a plug-in groove; 34. a first seal ring; 35. a positioning groove; 36. a positioning piece; 4. a hall sensing assembly; 41. a PCB circuit board; 42. inserting a male connector; 43. inserting a female connector; 44. a conductive wire; 5. a central shaft; 6. a shaft sleeve; 7. a valve body; 71. a channel; 72. a water inlet; 73. a water outlet; 74. a mounting hole; 75. a stationary washer; 751. a groove; 8. a flow-limiting ring; 81. a second seal ring; 82. a limit groove; 9. and a water supplementing valve.

Detailed Description

The present utility model 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 utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like indicate orientations or positional relationships that are shown based on the drawings, merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

The utility model is described in further detail below with reference to fig. 1-3.

The embodiment of the utility model discloses a flow sensor.

Referring to fig. 1-3, a flow sensor comprises an impeller 1, a magnet 2, a mounting cover 3, a hall sensing assembly 4, a central shaft 5 and a shaft sleeve 6, wherein the impeller 1 is detachably connected to one side of the mounting cover 3, and the impeller 1 is rotatably connected with the mounting cover 3; the magnet 2 is arranged on the impeller 1 and is arranged along the rotating shaft collar direction of the impeller 1, and the Hall sensing component 4 is detachably connected to the other side of the mounting cover 3; when the flow sensor is used, the installation cover 3 is installed on the water inlet valve, the impeller 1 is positioned in the water inlet valve, the water in the water inlet valve drives the impeller 1 to drive the magnet 2 to rotate, the Hall sensing assembly 4 senses water flow in the water inlet valve, and when the flow sensor fails and needs to be overhauled, the installation cover 3 can be detached.

In order to improve the rotation stability of the impeller 1, a placing groove 11 for containing the magnets 2 is formed in one side, close to the mounting cover 3, of the impeller 1, a plurality of placing grooves 11 are formed in the radial direction of the rotating shaft of the impeller 1, the magnets 2 are embedded and matched with the placing grooves 11, the magnets 2 are fan-shaped in the axial direction of the rotating shaft of the impeller 1, the magnets 2 are arranged in the placing grooves 11, the distance between the magnets 2 and the impeller 1 is shortened, the impeller 1 is more stable in rotation, and noise is reduced; and one side of the installation cover 3 is provided with a first installation groove 31 for accommodating the impeller 1, the first installation groove 31 is provided with a splicing groove 33 for splicing the central shaft 5, the impeller 1 is rotationally connected with the central shaft 5, the rotating shaft of the impeller 1 and the central shaft 5 are coaxially arranged, the shaft sleeve 6 is fixedly connected on the impeller 1 and is positioned between the impeller 1 and the central shaft 5, the stability of the impeller 1 is further improved, and the friction force between the impeller 1 and the central shaft 5 is reduced through the shaft sleeve 6.

The second mounting groove 32 for accommodating the Hall sensing assembly 4 is formed in the other side of the mounting cover 3, so that the Hall sensing assembly 4 is mounted more stably, and the detection effect is improved; the mounting cover 3, the impeller 1 and the Hall sensing assembly 4 are more compact in structure and better in integrity; the Hall sensing assembly 4 comprises a PCB circuit board 41, a male plug 42, a female plug 43 and a conducting wire 44, wherein a plurality of Hall sensing pieces which are sensed by the magnet 2 are arranged on the PCB circuit board 41, the PCB circuit board 41 is arranged on the mounting cover 3, the male plug 42 is fixedly connected to the mounting cover 3 and is electrically connected with the PCB circuit board 41, the female plug 43 is fixedly connected to the end part of the conducting wire 44 and is electrically connected with the conducting wire 44, the male plug 42 is in plug fit with the female plug 43, after the male plug 42 is plugged with the female plug 43, the electrical connection of the conducting wire 44 and the PCB circuit board 41 is realized, signals are generated after sensing the PCB circuit board 41 and the magnet 2, the signals are conducted through the conducting wire 44, and when the conducting wire 44 needs to be replaced, the male plug 42 is separated from the female plug 43.

The locating piece 36 is integrally formed on the side wall of the mounting cover 3, so that the mounting cover 3 can be accurately mounted through the locating piece 36 during mounting, and the mounting accuracy and the mounting efficiency are improved.

In order to improve the installation tightness of the installation cover 3, the first sealing ring 34 which is annular is sleeved on the periphery of the installation cover 3, the positioning groove 35 for accommodating the first sealing ring 34 is formed in the installation cover 3, when the installation cover 3 is installed, the first sealing ring 34 is positioned between the installation cover 3 and the water inlet valve, the tightness between the installation cover 3 and the water inlet valve is improved, the first sealing ring 34 is positioned in the positioning groove 35, and the installation cover is more stable and has better sealing effect.

The embodiment of the utility model discloses a water inlet valve.

The water inlet valve comprises a valve body 7, the flow sensor and the flow limiting ring 8, wherein a channel 71 is formed in the valve body 7, the channel 71 extends to two ends of the valve body 7 to form a water inlet 72 and a water outlet 73, a mounting hole 74 communicated with the channel 71 is formed in one end, close to the water outlet 73, of the valve body 7, a mounting cover 3 is embedded and matched with the mounting hole 74, the mounting cover 3 is mounted at the mounting hole 74 when the flow sensor is mounted, water in the channel 71 drives an impeller 1 to rotate when being discharged from the water outlet 73, and the water gradually stabilizes after entering the channel 71 from the water inlet 72, so that the impeller 1 rotates stably, and water flow can be better detected; and a fixed washer 75 is fixedly connected in the channel 71, a groove 751 is formed in the middle of the fixed washer 75, and the central shaft 5 is in plug-in fit with the groove 751.

In order to further improve the flow stability of water in the water inlet valve, the flow limiting ring 8 is detachably connected to the water inlet 72, a second sealing ring 81 is sleeved on the periphery of the flow limiting ring 8, a limiting groove 82 for accommodating the second sealing ring 81 is formed in the flow limiting ring 8, the flow limiting ring 8 is arranged, the valve body 7 is connected into a pipeline, water in the pipeline enters the valve body 7 more stably, the tightness between the flow limiting ring 8 and the valve body 7 is improved through the second sealing ring 81, and meanwhile, the second sealing ring 81 is more stably arranged through the limiting groove 82.

In order to ensure the pressure balance in the pipeline, the valve body 7 is provided with a water supplementing valve 9 communicated with the channel 71 through bolts, the other end of the water supplementing valve 9 is connected with a water supply system, and when the pressure in the pipeline is low, the water supplementing valve 9 can be automatically opened to fill water into the channel 71 to balance the pressure.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. A flow sensor, characterized by comprising an impeller (1) and a magnet (2) arranged on the impeller (1), wherein the magnet (2) is arranged along the rotating shaft of the impeller (1) in a radial direction; still include installation lid (3) and hall sensing assembly (4), impeller (1) can dismantle connect in one side of installation lid (3), impeller (1) with rotate between installation lid (3) and be connected, hall sensing assembly (4) can dismantle connect in the opposite side of installation lid (3).

2. A flow sensor according to claim 1, characterized in that one side of the mounting cover (3) is provided with a first mounting groove (31) for accommodating the impeller (1), and the other side of the mounting cover (3) is provided with a second mounting groove (32) for accommodating the hall sensing assembly (4).

3. A flow sensor according to claim 2, further comprising a central shaft (5) and a shaft sleeve (6), wherein the first mounting groove (31) is provided with a plugging groove (33) for plugging the central shaft (5), the impeller (1) is rotationally connected with the central shaft (5), the rotation shaft of the impeller (1) is coaxially arranged with the central shaft (5), and the shaft sleeve (6) is fixedly connected to the impeller (1) and is located between the impeller (1) and the central shaft (5).

4. A flow sensor according to any of claims 1-3, characterized in that the impeller (1) is provided with a placement groove (11) for receiving the magnet (2) on the side close to the mounting cover (3).

5. The flow sensor according to claim 1, wherein the hall sensing assembly (4) comprises a PCB circuit board (41) provided with hall sensing elements, a plug-in male connector (42), a plug-in female connector (43) and a conductive wire (44), the PCB circuit board (41) is arranged on the mounting cover (3), the plug-in male connector (42) is arranged on the mounting cover (3) and is electrically connected with the PCB circuit board (41), the plug-in female connector (43) is arranged at the end part of the conductive wire (44) and is electrically connected with the conductive wire (44), and the plug-in male connector (42) is in plug-in fit with the plug-in female connector (43).

6. A flow sensor according to claim 1, characterized in that the mounting cover (3) is provided with a first sealing ring (34) on its peripheral side, and that the mounting cover (3) is provided with a positioning groove (35) for accommodating the first sealing ring (34).

7. A flow sensor according to claim 1, characterized in that the mounting cover (3) is provided with a positioning element (36) on its side wall.

8. The water inlet valve is characterized by comprising a valve body (7) and the flow sensor according to any one of claims 1-7, wherein a channel (71) is arranged inside the valve body (7), the channel (71) extends to two ends of the valve body (7) to form a water inlet (72) and a water outlet (73), one end, close to the water outlet (73), of the valve body (7) is provided with a mounting hole (74) communicated with the channel (71), the mounting cover (3) is in embedded fit with the mounting hole (74), and the impeller (1) is positioned in the channel (71).

9. A valve according to claim 8, further comprising a stationary washer (75), said stationary washer (75) being attached to the inner wall of said passage (71), said stationary washer (75) being provided with a recess (751) adapted to fit in a plug-in manner with the central shaft (5).

10. The water inlet valve according to claim 8, further comprising a flow limiting ring (8), wherein the flow limiting ring (8) is detachably connected to the water inlet (72), a second sealing ring (81) is arranged on the periphery of the flow limiting ring (8), and a limiting groove (82) for accommodating the second sealing ring (81) is formed in the flow limiting ring (8).