CN210893255U - Water flow sensor - Google Patents
Water flow sensor Download PDFInfo
- Publication number
- CN210893255U CN210893255U CN201921762988.XU CN201921762988U CN210893255U CN 210893255 U CN210893255 U CN 210893255U CN 201921762988 U CN201921762988 U CN 201921762988U CN 210893255 U CN210893255 U CN 210893255U
- Authority
- CN
- China
- Prior art keywords
- steel ball
- impeller
- cover
- cavity
- mandrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
A water flow sensor comprises a base, an impeller, a mandrel, a magnetic ring assembly arranged on the impeller, an upper cover and a Hall sensor, wherein a bottom fixing hole and a bottom steel ball cavity positioned on the bottom plate of the bottom fixing hole are formed in the bottom plate of an impeller cavity; the upper cover is provided with a cover fixing hole and a cover steel ball cavity arranged on a top plate of the cover fixing hole; the steel ball bearing is characterized by also comprising a hollow shaft seat with an opening at one end and a steel ball, wherein a rotating shaft hole is formed in an end plate of the shaft seat; the mandrel is fixedly connected with the shaft sleeve, and the mandrel and two ends of the shaft sleeve extend out; the opening end of a shaft seat is inserted into the bottom fixing hole, and a steel ball is arranged in the bottom steel ball cavity; the open end of the other shaft seat is inserted into the cover fixing hole, and the other steel ball is arranged in the cover steel ball cavity; the two ends of the mandrel are respectively matched with the rotating shaft hole in a rotating way, and the end surface of the mandrel is matched with the steel ball. The two ends of the mandrel are in running fit with the rotating shaft hole, when the impeller moves in a string mode, the end face of the mandrel is in point-surface contact with the steel ball, the mandrel is effectively protected, and the phenomenon that the impeller is blocked in the prior art is overcome.
Description
Technical Field
The utility model relates to a water flow sensor for electric water heater.
Background
In the prior art, a water flow sensor comprises a base, an impeller, a mandrel, a magnetic ring assembly arranged on the impeller, an upper cover and a Hall sensor, wherein the base comprises an impeller cavity with an opening, and a water inlet interface and a water outlet interface which are communicated with the impeller; the impeller comprises an impeller disc, a shaft sleeve and blades, and the shaft sleeve penetrates through the impeller disc; the magnetic ring component comprises a semicircular N pole and a semicircular S pole; the magnetic ring assembly is fixed on the impeller disc and surrounds the shaft sleeve, the Hall sensor is arranged on the upper cover, and the magnetic ring assembly is matched with the Hall sensor; the upper cover is buckled with the opening of the impeller cavity and is sealed by liquid; the mandrel is in clearance fit with the shaft sleeve, and two ends of the mandrel are fixed with the bottom plate and the upper cover of the impeller cavity. There are problems: because water quality contains tiny impurities, the water easily flows into a gap between the impeller and the mandrel, so that the impeller is blocked and does not rotate.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: a water flow sensor is provided, which has the characteristic of preventing the impeller from being blocked.
The utility model discloses a realize like this: a water flow sensor comprises a base, an impeller, a mandrel, a magnetic ring component arranged on the impeller, an upper cover and a Hall sensor, wherein the base comprises an impeller cavity with an opening, and a water inlet interface and a water outlet interface which are communicated with the impeller; the impeller comprises an impeller disc, a shaft sleeve and blades, and the shaft sleeve penetrates through the impeller disc; the magnetic ring component comprises a semicircular N pole and a semicircular S pole; the magnetic ring assembly is fixed on the impeller disc and surrounds the shaft sleeve, the Hall sensor is arranged on the upper cover, and the magnetic ring assembly is matched with the Hall sensor; the upper cover is buckled with the opening of the impeller cavity and is sealed by liquid; it is characterized in that: a bottom fixing hole and a bottom steel ball cavity positioned on the bottom plate of the bottom fixing hole are formed in the bottom plate of the impeller cavity; the upper cover is provided with a cover fixing hole and a cover steel ball cavity arranged on a top plate of the cover fixing hole;
the steel ball bearing is characterized by also comprising a hollow shaft seat with an opening at one end and a steel ball, wherein a rotating shaft hole is formed in an end plate of the shaft seat;
the mandrel is fixedly connected with the shaft sleeve, and the mandrel and two ends of the shaft sleeve extend out; the opening end of a shaft seat is inserted into the bottom fixing hole, and a steel ball is arranged in the bottom steel ball cavity; the open end of the other shaft seat is inserted into the cover fixing hole, and the other steel ball is arranged in the cover steel ball cavity; the two ends of the mandrel are respectively matched with the rotating shaft hole in a rotating way, and the end surface of the mandrel is matched with the steel ball.
The water flow sensor is characterized in that: a bottom shaft seat is arranged on a bottom plate of the impeller cavity, and the bottom fixing hole and the bottom steel ball hole are arranged on the bottom shaft seat;
the upper cover is provided with a cover shaft seat, and the cover fixing hole and the cover steel ball hole are formed in the cover shaft seat.
The water flow sensor is characterized in that: a counter bore is arranged on an opening of the impeller cavity;
the upper cover comprises a cover plate part and a connecting part, and the connecting part is provided with a step;
the sealing ring is also included;
the sealing ring is arranged in the counter bore, the connecting port is inserted into the opening of the impeller cavity, and the sealing ring is pressed in a step mode.
The water flow sensor is characterized in that: the upper cover is provided with an accommodating cavity with an opening at the top and a signal wire slot communicated with the accommodating cavity;
the Hall sensor is arranged in the accommodating cavity, a signal wire of the Hall sensor extends out of the signal wire groove, and the Hall sensor is fixed in the accommodating cavity through resin.
The utility model relates to a water flow sensor, dabber both ends and pivot hole normal running fit, when the impeller cluster moved, and the terminal surface and the steel ball point face contact of dabber, effective protection dabber overcomes the dead phenomenon of impeller card among the prior art.
Drawings
Fig. 1 is a sectional view of the present invention.
Fig. 2 is a perspective view of the present invention.
Fig. 3 is one of the exploded perspective views of the present invention.
Fig. 4 is a second exploded perspective view of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, a water flow sensor comprises a base 1, an impeller 2, a mandrel 3, a magnetic ring assembly 4 arranged on the impeller, an upper cover 5 and a hall sensor 6, wherein the base 1 comprises an impeller cavity 11 with an opening, a water inlet interface 12 communicated with the impeller and a water outlet interface 13; the impeller 2 comprises an impeller disc 21, a shaft sleeve 22 and blades 23, wherein the shaft sleeve 22 penetrates through the impeller disc 21; the magnetic ring component 4 comprises a semicircular N pole and a semicircular S pole; the magnetic ring assembly 4 is fixed on the impeller disc 21 and surrounds the shaft sleeve 22, the Hall sensor 6 is arranged on the upper cover 5, and the magnetic ring assembly 4 is matched with the Hall sensor 6; the upper cover 5 is fastened and liquid-tight with the opening of the impeller cavity 11.
A bottom fixing hole 14 and a bottom steel ball cavity 15 positioned on the bottom plate of the bottom fixing hole are formed in the bottom plate of the impeller cavity 11; the upper cover 5 is provided with a cover fixing hole 51 and a cover steel ball cavity 52 arranged on the top plate of the cover fixing hole;
the steel ball bearing also comprises a hollow shaft seat 7 with an opening at one end and a steel ball 8, wherein a rotating shaft hole 71 is arranged on an end plate of the shaft seat 7;
the mandrel 3 is fixedly connected with the shaft sleeve 22, the mandrel 3 extends out of two ends of the shaft sleeve 22, and the mandrel 3 is fixedly connected with the shaft sleeve 22; the open end of a shaft seat 7 is inserted into the bottom fixing hole 14, and a steel ball 8 is arranged in the bottom steel ball cavity 25; the open end of the other shaft seat 7 is inserted into the cover fixing hole 51, and the other steel ball 8 is arranged in the cover steel ball cavity 52; the two ends of the mandrel 3 are respectively matched with the rotating shaft hole 71 in a rotating way, and the end surface of the mandrel is matched with the steel ball 8.
A bottom shaft seat 16 is arranged on a bottom plate of the impeller cavity 11, and the bottom fixing hole 14 and the bottom steel ball hole 15 are arranged on the bottom shaft seat 16;
the upper cover 5 is provided with a cover shaft seat 53, and the cover fixing hole 51 and the cover steel ball hole 52 are arranged on the cover shaft seat 53.
A counter bore 111 is arranged on an opening of the impeller cavity 11;
the upper cover 5 comprises a cover plate part 54 and a connecting part 55, and a step 551 is arranged on the connecting part 55;
also comprises a sealing ring 9;
seal ring 9 is disposed in counterbore 111, interface portion 55 is inserted into the opening of impeller cavity 11, and step 551 compresses seal ring 9.
The upper cover 5 is provided with an accommodating cavity 56 with an open top and a signal wire slot 57 communicated with the accommodating cavity, as shown in fig. 1, the accommodating cavity 56 extends into the interface part 55;
the Hall sensor 6 is arranged in the accommodating cavity 56, a signal wire 61 of the Hall sensor 6 extends out through a signal wire slot 57, and the Hall sensor 6 is fixed in the accommodating cavity 56 by resin; as shown in fig. 1, the hall sensor 6 is opposed to the magnetic ring assembly.
What has been described above is only a preferred embodiment of the present invention. It should be noted that, for a person skilled in the art, several modifications and variations can be made without departing from the principle of the invention, which is also considered as the protection scope of the invention.
Claims (4)
1. A water flow sensor comprises a base, an impeller, a mandrel, a magnetic ring component arranged on the impeller, an upper cover and a Hall sensor, wherein the base comprises an impeller cavity with an opening, and a water inlet interface and a water outlet interface which are communicated with the impeller; the impeller comprises an impeller disc, a shaft sleeve and blades, and the shaft sleeve penetrates through the impeller disc; the magnetic ring component comprises a semicircular N pole and a semicircular S pole; the magnetic ring assembly is fixed on the impeller disc and surrounds the shaft sleeve, the Hall sensor is arranged on the upper cover, and the magnetic ring assembly is matched with the Hall sensor; the upper cover is buckled with the opening of the impeller cavity and is sealed by liquid; the method is characterized in that: a bottom fixing hole and a bottom steel ball cavity positioned on the bottom plate of the bottom fixing hole are formed in the bottom plate of the impeller cavity; the upper cover is provided with a cover fixing hole and a cover steel ball cavity arranged on a top plate of the cover fixing hole;
the steel ball bearing is characterized by also comprising a hollow shaft seat with an opening at one end and a steel ball, wherein a rotating shaft hole is formed in an end plate of the shaft seat;
the mandrel is fixedly connected with the shaft sleeve, and the mandrel and two ends of the shaft sleeve extend out; the opening end of a shaft seat is inserted into the bottom fixing hole, and a steel ball is arranged in the bottom steel ball cavity; the open end of the other shaft seat is inserted into the cover fixing hole, and the other steel ball is arranged in the cover steel ball cavity; the two ends of the mandrel are respectively matched with the rotating shaft hole in a rotating way, and the end surface of the mandrel is matched with the steel ball.
2. A water flow sensor according to claim 1, wherein: a bottom shaft seat is arranged on a bottom plate of the impeller cavity, and the bottom fixing hole and the bottom steel ball hole are arranged on the bottom shaft seat;
the upper cover is provided with a cover shaft seat, and the cover fixing hole and the cover steel ball hole are formed in the cover shaft seat.
3. A water flow sensor according to claim 1, wherein: a counter bore is arranged on an opening of the impeller cavity;
the upper cover comprises a cover plate part and a connecting part, and the connecting part is provided with a step;
the sealing ring is also included;
the sealing ring is arranged in the counter bore, the connecting port is inserted into the opening of the impeller cavity, and the sealing ring is pressed in a step mode.
4. A water flow sensor according to claim 1, 2 or 3, wherein: the upper cover is provided with an accommodating cavity with an opening at the top and a signal wire slot communicated with the accommodating cavity;
the Hall sensor is arranged in the accommodating cavity, a signal wire of the Hall sensor extends out of the signal wire groove, and the Hall sensor is fixed in the accommodating cavity through resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921762988.XU CN210893255U (en) | 2019-10-18 | 2019-10-18 | Water flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921762988.XU CN210893255U (en) | 2019-10-18 | 2019-10-18 | Water flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210893255U true CN210893255U (en) | 2020-06-30 |
Family
ID=71340334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921762988.XU Active CN210893255U (en) | 2019-10-18 | 2019-10-18 | Water flow sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210893255U (en) |
-
2019
- 2019-10-18 CN CN201921762988.XU patent/CN210893255U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106286241B (en) | Piezoelectric pump and method of operating the same | |
| CN210893255U (en) | Water flow sensor | |
| DE102009049904A1 (en) | Separation wall i.e. separating calotte, for ball shaped electric motor, has rotor assembly pivoted to sliding body, and retaining element formed with enclosed surface for sliding body and made of stainless steel deep-drawable material | |
| CN106123972B (en) | Combined water tank joint | |
| CN211291580U (en) | Water flow sensor | |
| CN106609761B (en) | Pump installation | |
| JP2013076334A (en) | Pump motor, canned pump having the pump motor, and dishwasher having the canned pump | |
| EP0672832B1 (en) | Sealing device for pump impeller | |
| CN210738837U (en) | Motor rotor for noise-reducing water pump, noise-reducing water pump and water pool circulating system | |
| JPS60198396A (en) | Synthetic resin impeller in spiral pump | |
| CN216012345U (en) | Water flow sensor | |
| CN205260335U (en) | Novel massage water pump | |
| CN207813972U (en) | Oil pump integrated submerged pump | |
| CN217384347U (en) | Built-in water flow sensor main body | |
| CN205559305U (en) | Novel submersible pump | |
| CN209230693U (en) | Flowmeter water pump | |
| CN220602606U (en) | Improved water flow sensor | |
| CN101082516A (en) | IC card water meter cases of water inlet and outlet non-symmetrical single flow stream water meter and ball-valve conjoined | |
| CN214662253U (en) | Bridge type tap | |
| CN209875482U (en) | Magnetic rotor assembly for gas water heater | |
| CN209959941U (en) | Horizontal baffle check valve | |
| CN213298172U (en) | Miniature water flow generator | |
| KR101072902B1 (en) | Washing fluid pumpmotor with insert type terminal cap | |
| CN213776405U (en) | Cavitation-resistant noise-reducing butterfly valve | |
| CN214998277U (en) | Water pump integrated with water flow switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |