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CN-116181638-B - Modular water flow sensing device and method of forming the same

CN116181638BCN 116181638 BCN116181638 BCN 116181638BCN-116181638-B

Abstract

The invention discloses a modularized water flow induction device and a forming method thereof, wherein the method comprises the steps of forming a first flap valve bracket with a first magnet; the method comprises the steps of installing a flap valve with a second magnet and a rotating shaft on a first flap valve support to form a flap valve support assembly, butting the flap valve support assembly with the second flap valve support to form a flap valve assembly, arranging the upper part of the flap valve assembly in a control box with a reed pipe control circuit, fixing the bottoms of the two flap valve supports in the flap valve assembly through a support base to form a modularized water flow sensing device in an electric pump pipeline for radial water flow or axial water flow, and returning the flap valve under the repulsive force of the first magnet to the second magnet to enable the reed pipe control circuit to be non-conductive when the modularized water flow sensing device is arranged in the electric pump pipeline. The device has the advantages of high precision, large flow, low failure rate, long service life, versatility in two different axial and radial water flow directions and low cost.

Inventors

  • SHI QIULING
  • CHEN QUANMIN

Assignees

  • 易驱(福州)电子科技有限公司

Dates

Publication Date
20260512
Application Date
20211129

Claims (8)

  1. 1. A method of forming a modular water flow sensing apparatus, comprising: forming a first flap valve bracket and a second flap valve bracket which respectively comprise an upright part, an arc-shaped baffle table part and an inserting part provided with a bracket magnet arranging cavity and a rotating shaft inserting part; Positioning a first magnet within a bracket magnet positioning cavity of a first flap valve bracket to form a first flap valve bracket having the first magnet; The flap valve with the second magnet and the rotating shaft is arranged on a first flap valve bracket with the first magnet, one end of the rotating shaft is inserted into a rotating shaft inserting part of the first flap valve bracket, and the opposite magnetic poles of the first magnet and the second magnet are the same, so that a flap valve bracket component with the flap valve and the first magnet is formed; Butt-jointing the flap valve support assembly and the second flap valve support, enabling the insertion part and the arc-shaped baffle table part of the first flap valve support to be respectively aligned with the insertion part and the arc-shaped baffle table part of the second flap valve support, enabling the second magnet and the rotating shaft to be respectively aligned with the magnet placement cavity and the rotating shaft insertion part on the second flap valve support, and forming a flap valve assembly with the flap valve capable of rotating relative to the two flap valve supports; The upper part of the flap valve assembly, which comprises a first magnet, is arranged in a control box which is provided with a reed pipe control circuit and is detachably connected with a water supply pipeline, and the bottoms of a first flap valve bracket and a second flap valve bracket in the flap valve assembly are fixed through a bracket base, so that a modularized water flow sensing device in an electric pump pipeline for radial water flow or axial water flow to pass through is formed; The bracket base comprises a cylinder body with a central hole as a water passing hole, a first baffle table and a second baffle table which are annularly arranged on the outer wall of the cylinder body and are parallel up and down, wherein the first baffle table is used for placing the bottoms of arc baffle table parts of two flap valve brackets, and the second baffle table is used for connecting a radial pipeline for radial water flow to pass through or an axial pipeline for axial water flow to pass through; when the modularized water flow sensing device is arranged in a pipeline of the electric pump, if no water flow passes through the pipeline, the flap valve returns under the action of repulsive force of the first magnet to the second magnet to enable the reed switch control circuit to be non-conductive, and the electric pump power supply is automatically disconnected.
  2. 2. The method of claim 1, wherein forming a flap valve having a second magnet and a shaft comprises: Forming a flap valve with a flap valve magnet installation cavity, a magnet anti-falling piece and a rotating shaft; the second magnet is arranged in a flap valve magnet arranging cavity of the flap valve, and the second magnet is fixed in the flap valve magnet arranging cavity by utilizing the magnet anti-falling piece.
  3. 3. The method of claim 2, wherein the magnet release guard is one or more protrusions disposed on the periphery of the flap magnet receiving cavity.
  4. 4. A method according to claim 2 or claim 3, wherein the flap magnet mounting cavity is located above the spindle.
  5. 5. The method of claim 4, wherein the arcuate stop portions are located on opposite sides of the lower portion of the upright portion, the insert portion is located on the upper portion of the upright portion, and the bracket magnet receiving cavity is located on the insert portion.
  6. 6. The method of claim 1, wherein the second flap holder is connected to the first flap holder by an alignment structure.
  7. 7. The method of claim 6, wherein the bracket base is connected to the bottoms of two flap brackets by a docking structure.
  8. 8. A modular water flow sensing apparatus formed by the method of any one of claims 1-7.

Description

Modular water flow sensing device and method of forming the same Technical Field The invention relates to the technical field of household electric pumps, in particular to a modularized water flow sensing device which is matched with a household electric pump and can realize an automatic start-stop function and a forming method thereof. Background The current water flow sensing devices (also called water flow switches) in the market are widely applied, and can be roughly divided into water flow sensing devices applied in an axial overcurrent mode and a radial overcurrent mode, and the two water flow sensing devices can respectively adopt the following structures: Type A, as shown in FIGS. 1-7, is a shutter type structure adopted in a traditional axial overcurrent mode, and comprises a reed switch I101, a control box 102, a limiting tightening block 103, a magnet 104, a shutter 105, a shutter limiting plate 106, a return spring 107 and a base 108. When water is used, the baffle can be pushed open when water flow in the pipeline flows along the axial direction of the pipeline, the baffle drives the magnet under the action of the rotating shaft, the reed switch is conducted under the action of the magnetic field, when water is used, no water flow in the pipeline flows, the baffle can be closed under the action of the reset spring, and at the moment, the reed switch can be disconnected when the magnetic field effect of the reed switch is lost. Type B, as shown in fig. 7-13, is a plunger reciprocating structure used in a conventional radial overcurrent mode, and includes a reed switch II110, a locking control block 111, a spring 112, a magnetic ring 113, a sliding plunger 114, and a plunger seal 115. When water is used, water flow in the pipeline flows upwards along the radial direction of the pipeline to jack the plunger (shown in figure 12), the plunger is jacked together with the magnetic ring on the plunger, the reed switch is conducted under the action of a magnetic field, when water is used, no water flow in the pipeline flows, the plunger falls under the action of the restoring force of the spring, and at the moment, the reed switch is disconnected when the magnetic field effect of the reed switch is lost. According to the water flow sensing device with the two types of structures, under the condition that a pipeline is determined, the type A can push the baffle plate away under the condition of low flow velocity of water flow by utilizing the lever principle, so that the purpose of conducting the reed switch under the condition of low flow is realized, namely, the detection precision is high. However, due to the presence of the return spring in type a, the opening of the flap valve is limited and cannot be fully opened, thereby limiting the maximum flow rate of the conduit. And the type B adopts a plunger structure, so that the single-phase non-return effect can be easily designed, and the pressure maintaining effect in the pump is realized. However, since all the forces of the type B are concentrated on the plunger, which causes a hindrance to the opening of the water flow, a larger flow is required to turn on the reed switch, i.e. the opening precision is low. In addition, since the two types are provided with springs for resetting, the springs in water can have problems of rust, impurity winding and the like, so that the failure rate is high, and the service life of the water flow sensing device is influenced. Moreover, the type A can only detect axial water flow, the type B can only detect radial water flow, the two types can not be used commonly, the use process has great limitation, and the use cost is increased. Disclosure of Invention The invention aims to solve the problems, and provides a modularized water flow sensing device and a forming method thereof, wherein the formed modularized water flow sensing device has the advantages of high precision, large flow, low failure rate, long service life, wide application range and low manufacturing and using cost, and can be used in two different axial and radial water flow directions. To achieve the above object, one aspect of the present invention provides a method of forming a modular water flow sensing apparatus, comprising: forming a first flap valve holder having a first magnet; Mounting a flap valve with a second magnet and a rotating shaft on a first flap valve bracket with a first magnet, and enabling opposite magnetic poles of the first magnet and the second magnet to be the same to form a flap valve bracket assembly with the flap valve and the first magnet; butt-jointing the flap valve support assembly and the second flap valve support to form a flap valve assembly with a flap valve capable of rotating relative to the two flap valve supports; The upper part of the flap valve assembly comprising a first magnet is arranged in a control box with a reed pipe control circuit, and the bottoms of a first flap valve bracket and a second flap valve b