CN201465903U - Piston type mini-flow detector switch for overflow detection - Google Patents
Piston type mini-flow detector switch for overflow detection Download PDFInfo
- Publication number
- CN201465903U CN201465903U CN2009200160645U CN200920016064U CN201465903U CN 201465903 U CN201465903 U CN 201465903U CN 2009200160645 U CN2009200160645 U CN 2009200160645U CN 200920016064 U CN200920016064 U CN 200920016064U CN 201465903 U CN201465903 U CN 201465903U
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- China
- Prior art keywords
- piston
- sleeve
- housing
- switch
- piston type
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- Expired - Fee Related
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Abstract
The utility model discloses a piston type mini-flow detector switch for overflow detection. A piston sleeve (9) is arranged in a switch shell (2) in the flow direction of the fluid, and a return spring (12) and a piston slider (6) are arranged in the piston sleeve (9). The piston type mini-flow detector switch can detect the mini flow passing through. The utility model is connected in a plug-in way, thereby being very convenient to install.
Description
Affiliated technical field
The utility model relates to dry-reed flow detection switch, relates in particular to a kind of can being installed in and is used for the piston type tiny flow quantity sense switch that overflow detects on the upper and lower water lines of solar water heater water tank.
Background technology
At present, existing dry-reed flow detection switch is made up of the valve plug that includes magnet, tamponade spring, valve seat, tongue tube and housing, and tongue tube is set in the housing.Tamponade spring handle valve plug is pressed on the valve seat, as water during from valve seat one side inflow, water backs down the opposite side that flows to valve seat to the valve plug that is pressed on the valve seat, the valve plug that is backed down produces displacement along the flow direction of water, when valve plug when being set in tongue tube in the housing, magnet in the valve plug makes the closing of contact of tongue tube, has illustrated that water flows through; When there not being the out-of-date valve plug of current to be pushed back on the valve seat by the tamponade spring, magnet is away from tongue tube, and the contact in the tongue tube disconnects.The shortcoming of the prior art is: little when the displacement of current hour valve plug, can not make its closing of contact near tongue tube, and sensitivity is low; In addition, the installation of the prior art in pipeline adopted and is threaded, and installs inconvenient.
Summary of the invention
Low and adopt to be threaded inconvenient shortcoming is installed in order to overcome prior art sensitivity, the utility model provides a kind of piston type tiny flow quantity sense switch.This switch can detect the tiny flow quantity that drips and adopt plug-in type to connect, and installs to reach to convenient.
Technical solution adopted in the utility model is: this switch is by housing, piston sleeve, return spring, piston slider be used for the seal rubber sleeve that pipeline is connected and form, the outside of housing is inlaid with tongue tube, for columnar structured, two ends at housing, the entrance and exit that is switch has the gap that distributes along branches such as circumference respectively, be used to clamp seal rubber sleeve and the overflow pipe that inserts in it, piston sleeve is along in the housing of axially packing into of housing, on the sidewall of piston sleeve, have delivery port, inlet at piston sleeve has circular outer plate washer, it is vertical with piston sleeve, the outer rim of circular outer baffle plate studs with the O RunddichtringO, is used for the sealing between circular outer baffle plate and inner walls.Spring and piston slider are housed in piston sleeve, and piston slider is a cylindrical structural, cylindrical outer surface have the projection sealing ring, be used for and piston sleeve between slipper seal, in piston slider, stud with permanent magnet.The advantage of this kind structure is, piston sleeve does not have current to reveal when piston slider moves to the delivery port of piston sleeve, the water flow pressure that promotes piston slider remains unchanged, move forward even if small flow also can promote piston slider, up to moving to delivery port, current flow out from delivery port, the thrust of current reduces, this moment, piston slider moved on to the below of tongue tube just, made the closing of contact of tongue tube, sent alarm signal.The mode that this switch adopt to insert is connected in the overflow passage, and the upstream and downstream pipeline section of overflow passage inserts respectively in the entrance and exit seal rubber sleeve of this switch, in the entrance and exit outside of switch respectively with pipe clamp with its banding.The course of work of this switch is; When overflow took place, water impact piston slider, piston slider moved inwards along water (flow) direction in piston sleeve, and when moving to the below of tongue tube, magnetic force makes the tongue tube closure; Piston slider is got back to original position under the effect of return spring when overflow stops, and tongue tube disconnects.
The beneficial effects of the utility model are that this kind structure has improved the sensitivity of switch, can detect arbitrarily small flow.In addition, this sense switch is easy for installation, adopts plug-in type to connect, and only needs that the upstream and downstream pipeline of overflow pipe is inserted switch and gets final product, and is not threaded.
Description of drawings
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
Wherein:
Accompanying drawing 1 is the sectional structure chart of the embodiment of the utility model piston type tiny flow quantity sense switch.
Accompanying drawing 2 is accompanying drawing 1 right views.
1. tongue tubes among the figure, 2. housing 3. waits branch gap, 4. seal rubber sleeve, 5. raised seals ring, 6. piston slider, 7. permanent magnet, the 8. delivery port of piston sleeve, 9. piston sleeve, the 10. circular outer baffle plate of piston sleeve inlet, 11.O RunddichtringO, 12. return springs.
Embodiment
Piston type tiny flow quantity sense switch shown in Figure 1 is made up of tongue tube (1), housing (2), seal rubber sleeve (4), piston slider (6), permanent magnet (7), piston sleeve (9), return spring (12).Tongue tube (1) is embedded on the housing (2), piston sleeve (9) inserts in the housing (2) vertically, be inlaid with O type sealing ring (11) on the circular outer baffle plate (10) of piston sleeve inlet, O type sealing ring (11) plays the sealing function between housing (2) and circular outer baffle plate (10), return spring (12) and piston slider (6) are housed in piston sleeve (9), in piston slider (6), are inlaid with permanent magnet (7).Entrance and exit at housing (2) has five equilibrium gap (3) respectively along circumference, and its effect is to compress seal rubber sleeve (4) and the overflow pipe that inserts in it under the effect of pipe clamp, and switch closely is connected with overflow pipe.Have raised seals ring (5) on the excircle of seal rubber sleeve (4), its effect is the sealing function between enhanced leaktightness gum cover (4) and housing (2).When overflow takes place when, overflow enters from the inlet of switch, the piston slider (6) that promotes in the piston sleeve (9) moves inwards, magnetic force makes the closing of contact of tongue tube (1) when moving to the lower end of tongue tube (1), switch sends alarm signal, and current flow out through the delivery port (8) of piston sleeve (9), the outlet of switch.When overflow stopped, piston slider (6) was got back to original position under the effect of return spring (12), and the contact of tongue tube (1) disconnects, and switch stops to report to the police.
Claims (4)
1. piston type tiny flow quantity sense switch, contain the switch case that is inlaid with tongue tube, it is characterized in that: in the housing that is inlaid with tongue tube (1) (2), on the direction that the longshore current body flows piston sleeve (9) is housed, on the sidewall of piston sleeve (9), have delivery port (8), inlet at piston sleeve (9) has circular outer baffle plate (10), it is vertical with piston sleeve (9), outer rim at circular outer baffle plate (10) is inlaid with O RunddichtringO (11), it plays the sealing function between circular outer baffle plate (10) and housing (2), return spring (12) and piston slider (6) are housed in piston sleeve (9), the sealing that seal rubber sleeve (4) is used for the pipeline insert promptly is equipped with at two ends in housing (2) in the entrance and exit of switch.
2. piston type tiny flow quantity sense switch according to claim 1 is characterized in that: the two ends in housing (2), promptly the entrance and exit of switch has the gap (3) that distributes along branches such as circumference respectively.
3. piston type tiny flow quantity sense switch according to claim 1 is characterized in that: have raised seals ring (5) on the excircle of seal rubber sleeve (4).
4. piston type tiny flow quantity sense switch according to claim 1 is characterized in that: piston slider (6) is a cylindrical structural, and its surface has the sealing ring of projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200160645U CN201465903U (en) | 2009-07-29 | 2009-07-29 | Piston type mini-flow detector switch for overflow detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200160645U CN201465903U (en) | 2009-07-29 | 2009-07-29 | Piston type mini-flow detector switch for overflow detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201465903U true CN201465903U (en) | 2010-05-12 |
Family
ID=42393251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200160645U Expired - Fee Related CN201465903U (en) | 2009-07-29 | 2009-07-29 | Piston type mini-flow detector switch for overflow detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201465903U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163515A (en) * | 2011-03-11 | 2011-08-24 | 中国船舶重工集团公司第七〇四研究所 | Pressure induction type flow switch |
| CN104422427A (en) * | 2013-08-19 | 2015-03-18 | 中国科学院沈阳自动化研究所 | Mechanical switch-type depth sensor |
| CN112460278A (en) * | 2020-11-23 | 2021-03-09 | 黑龙江农业工程职业学院 | Fluid switch, working method and application thereof |
-
2009
- 2009-07-29 CN CN2009200160645U patent/CN201465903U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163515A (en) * | 2011-03-11 | 2011-08-24 | 中国船舶重工集团公司第七〇四研究所 | Pressure induction type flow switch |
| CN102163515B (en) * | 2011-03-11 | 2013-08-28 | 中国船舶重工集团公司第七〇四研究所 | Pressure induction type flow switch |
| CN104422427A (en) * | 2013-08-19 | 2015-03-18 | 中国科学院沈阳自动化研究所 | Mechanical switch-type depth sensor |
| CN104422427B (en) * | 2013-08-19 | 2016-08-10 | 中国科学院沈阳自动化研究所 | A kind of mechanical switch type depth transducer |
| CN112460278A (en) * | 2020-11-23 | 2021-03-09 | 黑龙江农业工程职业学院 | Fluid switch, working method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20100729 |