CN202816791U - Adjustable pressure switch - Google Patents
Adjustable pressure switch Download PDFInfo
- Publication number
- CN202816791U CN202816791U CN 201220526617 CN201220526617U CN202816791U CN 202816791 U CN202816791 U CN 202816791U CN 201220526617 CN201220526617 CN 201220526617 CN 201220526617 U CN201220526617 U CN 201220526617U CN 202816791 U CN202816791 U CN 202816791U
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- CN
- China
- Prior art keywords
- housing
- supporting rod
- pole
- pressure switch
- hole
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an adjustable pressure switch. The switch comprises a housing and an elastic membrane. The bottom part of the housing is provided with a through hole. The elastic membrane is arranged inside the housing and located above the through hole. A push rod is arranged on the elastic membrane. The top part of the housing is provided with two binding posts. A connecting piece is arranged between the two binding posts. The switch further comprises a supporting rod and a supporting point. The supporting point is arranged on the housing in a downward manner. The supporting rod is arranged transversely on the supporting point. The supporting point is arranged at a position one third from the right side of the supporting rod. The right side of the supporting rod is connected with the push rod while the left side of the supporting rod is connected with the connecting piece. The left side of the supporting rod is also provided with a return spring. One end of the return spring is connected with the housing while the other end of the return spring is connected with the left side of the supporting rod. According to the utility model, when the pressure inside the through hole increases, the push rod moves upwards to press upwards against the right side of the supporting rod; and when the pressure reaches a set value, the left side of the supporting rod is prized up to enable the connecting piece to break the connection between the two binding posts. The adjustable pressure switch is simple in structure, high in usage reliability, and good in safety performance.
Description
Technical field
The utility model relates to a kind of adjustable pressure switch.
Background technology
Be generally used for the switch of controlled pressure, to be consisted of by two interconnective housings and the diaphragm and the sensitive switch that are arranged in the two housings, be provided with support in the housing, push rod is housed on the support, when the pressure that passes into medium reaches set point, by the action of flexible sheet, make the push rod displacement and control the break-make work of sensitive switch.Although the pressure switch of this structure is arranged on sensitive switch in the two housings, to avoid the impact of outer bound pair sensitive switch, improve the useful life of pressure switch and the reliability of work.But the pressure switch of this kind structure, the lower chamber that communicates with fluid media (medium) and the upper cavity that push rod and sensitive switch are housed, only realize isolation by diaphragm, because flexible sheet can not play good sealing function, so when external agency enters lower chamber, steam in the medium will enter in the cavity on top, steam impacts push rod and sensitive switch, especially ought be used in household electrical appliance such as steam cleaner that control has certain pressure, during electric iron etc., because sensitive switch directly communicates with the high-temperature steam with certain pressure, can descend so that have in the security reliability of pressure switch work and useful life.Secondly, disclosed pressure switch all is the elastic force by the regulating pushing rod lower springs, come the distance between regulating pushing rod and the sensitive switch, but can't regulate the distance between the sensitive switch contact, be difficult to reach the purpose of accurate control, therefore present disclosed pressure switch can't satisfy highly sensitive main frame.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, safe and reliable adjustable pressure switch.
The technical scheme that realizes the utility model purpose provides a kind of adjustable pressure switch, comprise that the bottom is provided with the housing of through hole, be arranged on the flexible sheet in the housing, described flexible sheet is arranged on the top of through hole, be provided with push rod at flexible sheet, the top of described housing is provided with two binding posts, be provided with brace between described two binding posts, also comprise pole, fulcrum, described fulcrum is arranged on the housing and downwards and arranges, described pole is horizontally installed on the fulcrum, described fulcrum is arranged on 1/3 place, right side of pole, the right side of described pole is connected with described push rod, and the left side of described pole is connected with brace, and the left side of described pole also is provided with back-moving spring, one end of described back-moving spring is connected with housing, and the other end links to each other with the left side of pole.
Described flexible sheet is fixed on the through hole top in the housing.
The utlity model has positive effect: of the present utility model simple in structure, form adjustable switch by flexible sheet and pole, when the pressure in the through hole, push rod moves up, upwards press the right side of pole, when pressure reached set point, the left side of pole was levered up, and brace is disconnected and being connected of two binding posts, dependability is high, and security performance is good.
Description of drawings
For content of the present utility model is more likely to be clearly understood, the below is described in further detail the utility model according to specific embodiment also by reference to the accompanying drawings, wherein:
Fig. 1 is structural representation of the present utility model.
Embodiment
(embodiment 1)
Fig. 1 has shown a kind of embodiment of the present utility model, and wherein Fig. 1 is structural representation of the present utility model.
See Fig. 1, a kind of adjustable pressure switch, comprise that the bottom is provided with the housing 2 of through hole 1, be arranged on the flexible sheet 3 in the housing 2, flexible sheet 3 is arranged on the top of through hole 1, be provided with push rod 4 at flexible sheet 3, the top of housing 2 is provided with two binding posts 5,6, be provided with brace 7 between two binding posts, also comprise pole 8, fulcrum 9, fulcrum 9 is arranged on the housing 2 and downwards and arranges, pole 8 is horizontally installed on the fulcrum 9, and fulcrum 9 is arranged on 1/3 place, right side of pole 8, and the right side of pole 8 is connected with push rod 4, the left side of pole 8 is connected with brace 7, the left side of pole 8 also is provided with back-moving spring 10, and an end of back-moving spring 10 is connected with housing 2, and the other end links to each other with the left side of pole 8.
Obviously, above-described embodiment of the present utility model only is for the utility model example clearly is described, and is not to be restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all execution modes exhaustive.And these belong to apparent variation or the change that connotation of the present utility model extends out and still belong to protection range of the present utility model.
Claims (2)
1. adjustable pressure switch, comprise that the bottom is provided with the housing of through hole, be arranged on the flexible sheet in the housing, described flexible sheet is arranged on the top of through hole, be provided with push rod at flexible sheet, the top of described housing is provided with two binding posts, be provided with brace between described two binding posts, it is characterized in that: also comprise pole, fulcrum, described fulcrum is arranged on the housing and downwards and arranges, described pole is horizontally installed on the fulcrum, described fulcrum is arranged on 1/3 place, right side of pole, the right side of described pole is connected with described push rod, and the left side of described pole is connected with brace, and the left side of described pole also is provided with back-moving spring, one end of described back-moving spring is connected with housing, and the other end links to each other with the left side of pole.
2. adjustable pressure switch according to claim 1 is characterized in that: described flexible sheet is fixed on the through hole top in the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220526617 CN202816791U (en) | 2012-09-28 | 2012-09-28 | Adjustable pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220526617 CN202816791U (en) | 2012-09-28 | 2012-09-28 | Adjustable pressure switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202816791U true CN202816791U (en) | 2013-03-20 |
Family
ID=47875635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220526617 Expired - Fee Related CN202816791U (en) | 2012-09-28 | 2012-09-28 | Adjustable pressure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202816791U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107611926A (en) * | 2017-09-15 | 2018-01-19 | 珠海格力电器股份有限公司 | Overload protection device and method, storage medium, compressor and electric appliance |
| CN108711535A (en) * | 2013-04-30 | 2018-10-26 | 基德科技公司 | Baroswitch |
-
2012
- 2012-09-28 CN CN 201220526617 patent/CN202816791U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711535A (en) * | 2013-04-30 | 2018-10-26 | 基德科技公司 | Baroswitch |
| CN107611926A (en) * | 2017-09-15 | 2018-01-19 | 珠海格力电器股份有限公司 | Overload protection device and method, storage medium, compressor and electric appliance |
| US11063420B2 (en) | 2017-09-15 | 2021-07-13 | Gree Electric Appliance (Wuhan) Co., Ltd. | Overload protection device and method, storage medium, compressor and electric appliance |
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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: 20130320 Termination date: 20130928 |