CN204269162U - Water flow sensor - Google Patents
Water flow sensor Download PDFInfo
- Publication number
- CN204269162U CN204269162U CN201420800555.XU CN201420800555U CN204269162U CN 204269162 U CN204269162 U CN 204269162U CN 201420800555 U CN201420800555 U CN 201420800555U CN 204269162 U CN204269162 U CN 204269162U
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- Prior art keywords
- water flow
- flow sensor
- magnet
- support
- permanent
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- 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.)
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- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
A kind of water flow sensor.Mainly solve existing water flow sensor and troublesome problem is installed.It is characterized in that: on described support, the position of corresponding permanent-magnet is provided with positive stop lug boss, described rotating shaft one end is fixed on valve body, and the other end is arranged between positive stop lug boss.Its advantage is directly to utilize the positive stop lug boss on support to carry out spacing to permanent-magnet, and without the need to using pressure ring circle, not only structure is more simple, and easier for installation.
Description
Technical field
The utility model relates to a kind of sensor, is specifically related to a kind of water flow sensor.
Background technology
Water flow sensor mainly contains valve body, water flow rotor assembly, current stabilization assembly and Hall element composition.It is contained in the water inlet end of water heater for measuring flow of inlet water.When water flows through rotor assembly, magnet rotor rotates, and rotating speed linearly changes along with flow.Hall element exports corresponding pulse signal and feeds back to controller, the size of discharge is judged by controller, the electric current of regulable control proportioning valve, thus passing ratio valve controls combustion gas gas quantity, the summer warms up the cool phenomenon in east to avoid gas heater in use to occur.Water flow sensor fundamentally solves the easy misoperation of differential water vapor linked valve pneumatic hydraulic pressure high one-level turnover plate type water valve and occurs the shortcomings such as dry combustion method.He has advantages such as being quick on the draw, the life-span is grown, be swift in motion, safe and reliable, the convenient pneumatic flowrate of connection side is ultralow.
As Chinese patent (CN202974348U) discloses a kind of novel many water flowings road sensor, on its shaft, cover has turbine, turbine top is provided with permanent-magnet, permanent-magnet is fixed on turbine by pressure ring circle, turbine top contacts with support, be fixed by a pressure ring circle between rotating shaft, turbine and permanent-magnet three, trouble is installed.
Utility model content
In order to overcome the deficiency of background technology, the utility model provides a kind of water flow sensor, solves existing water flow sensor and installs troublesome problem.
The technical scheme that the utility model adopts: a kind of water flow sensor, comprises valve body, support, cover plate, be provided with rotating shaft in valve body, in rotating shaft, cover has turbine, and turbine one end is arranged with permanent-magnet; On described support, the position of corresponding permanent-magnet is provided with positive stop lug boss, and described rotating shaft one end is fixed on valve body, and the other end is arranged between positive stop lug boss.
Described carriage center is provided with top, describedly toply to offset with spindle central.
Be provided with cavity volume in described support, be provided with Hall element and resistance in described cavity volume, described cavity volume is positioned at permanent-magnet both sides.
Described cover plate is fixedly connected with support by screw.
O RunddichtringO is provided with between described support and valve body.
Rubber ring is provided with between described support and cover plate.
The beneficial effects of the utility model are: adopt above scheme, directly utilize the positive stop lug boss on support to carry out spacing to permanent-magnet, and without the need to using pressure ring circle, not only structure is more simple, and easier for installation.
Accompanying drawing explanation
Fig. 1 is the utility model example structure schematic diagram.
Fig. 2 is the enlarged diagram at A place in Fig. 1
1-valve body in figure, 2-support, 21-is top, 22-positive stop lug boss, 23-cavity volume, 3-cover plate, 4-rotating shaft, 5-turbine, 6-permanent-magnet, 7-Hall element, 8-resistance, 9-screw, 10-O RunddichtringO, 11-rubber ring.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
As shown in the figure, a kind of water flow sensor, comprises valve body 1, support 2, cover plate 3, is provided with rotating shaft 4 in valve body 1, and in rotating shaft 4, cover has turbine 5, and turbine 5 one end is arranged with permanent-magnet 6; Described cover plate 3 is fixedly connected with support 2 by screw 9, is provided with cavity volume 23 in described support 2, is provided with Hall element 7 and resistance 8 in described cavity volume 23, and described cavity volume 23 is positioned at permanent-magnet 6 both sides; On described support 2, the position of corresponding permanent-magnet 6 is provided with positive stop lug boss 22, described rotating shaft 4 one end is fixed on valve body, the other end is arranged between positive stop lug boss 22, the positive stop lug boss 22 on support 2 is directly utilized to carry out spacing to permanent-magnet 6, without the need to using pressure ring circle, not only structure is more simple, and easier for installation.
Described support 2 center is provided with top 21, described top 2 offset with rotating shaft 4 center, the structure of top 21 can rapidly and rotating shaft 4 location fit, easier for installation, support 2 adopts plastic material simultaneously, has certain elasticity, can be out of shape, therefore lower to the accuracy requirement of component processing, can cut down finished cost, improve working (machining) efficiency.
In addition, between described support 2 and valve body 1, be provided with O RunddichtringO 10, between described support 2 and cover plate 3, be provided with rubber ring 11, good sealing effect.
Claims (6)
1. a water flow sensor, comprises valve body (1), support (2), cover plate (3), is provided with rotating shaft (4) in valve body (1), and the upper cover of rotating shaft (4) has turbine (5), and turbine (5) one end is arranged with permanent-magnet (6);
It is characterized in that: the position of the upper corresponding permanent-magnet (6) of described support (2) is provided with positive stop lug boss (22), and described rotating shaft (4) one end is fixed on valve body, and the other end is arranged between positive stop lug boss (22).
2. water flow sensor according to claim 1, is characterized in that: described support (2) center is provided with top (21), and described top (21) and rotating shaft (4) center offset.
3. water flow sensor according to claim 1, it is characterized in that: in described support (2), be provided with cavity volume (23), be provided with Hall element (7) and resistance (8) in described cavity volume (23), described cavity volume (23) is positioned at permanent-magnet (6) both sides.
4. water flow sensor according to claim 1, is characterized in that: described cover plate (3) is fixedly connected with support (2) by screw (9).
5. water flow sensor according to claim 1, is characterized in that: be provided with O RunddichtringO (10) between described support (2) and valve body (1).
6. water flow sensor according to claim 1, is characterized in that: be provided with rubber ring (11) between described support (2) and cover plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420800555.XU CN204269162U (en) | 2014-12-18 | 2014-12-18 | Water flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420800555.XU CN204269162U (en) | 2014-12-18 | 2014-12-18 | Water flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204269162U true CN204269162U (en) | 2015-04-15 |
Family
ID=52804024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420800555.XU Active CN204269162U (en) | 2014-12-18 | 2014-12-18 | Water flow sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204269162U (en) |
-
2014
- 2014-12-18 CN CN201420800555.XU patent/CN204269162U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |