CN202013844U - Pressure switch - Google Patents
Pressure switch Download PDFInfo
- Publication number
- CN202013844U CN202013844U CN2011201082299U CN201120108229U CN202013844U CN 202013844 U CN202013844 U CN 202013844U CN 2011201082299 U CN2011201082299 U CN 2011201082299U CN 201120108229 U CN201120108229 U CN 201120108229U CN 202013844 U CN202013844 U CN 202013844U
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- China
- Prior art keywords
- switch
- post
- pressure
- piston sheet
- spring
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Abstract
The utility model relates to the technical filed of switches, in particular to a pressure switch, which comprises a casing, a micro switch, an adjusting screw, a diaphragm, a piston piece and a main spring. The bottom of the piston piece abuts against the diaphragm. The main spring is arranged between the adjusting screw and the piston piece. A switch presser is arranged at the bottom of the micro switch. A trigger post penetrates through the middle portion of the adjusting screw in a sliding mode. The bottom of the trigger post is sleeved at the top of the piston piece in the sliding mode. The top of the trigger post abuts against and is connected with the switch presser. A differential pressure spring is arranged between the trigger post and the piston piece. The main spring inducts the force from the piston piece and is compressed. The piston piece does not trigger the switch presser directly, but transmits the force to the trigger post through the compression of the differential pressure spring. The switch presser is triggered by the trigger post. The differential pressure is changed according to the change of the elastic coefficient of the differential pressure spring, thereby realizing the set of the differential pressure in a wider range.
Description
Technical field:
The utility model relates to the switching technique field, refers in particular to pressure switch.
Background technology:
The mechanical compression switch is that pure mechanical deformation causes the sensitive switch action, and the same with current widely used pressure switch, service-strong spring and precise jiggle switch are as key element.When pressure increases, act on different sensed pressure components and parts (diaphragm, bellows, piston) and produce deformation, will move up, by mechanical structures such as railing springs, the final sensitive switch topmost that starts makes signal of telecommunication output.Be widely used in the automated system of measurement gas such as chemical industry, machinery, the hydrology, electric power, environmental protection, fluid pressure.Be applied to especially: the fluid pressure of surveying commercial water dispenser, coffee machine; Survey the hydraulic pressure of water heater or house gas boiler; The stopping state of explorer's usefulness or industrial air pump; The pressure sensitive of steam cleaner and control; Survey the working order of vacuum pump.Because easy to adjust installation is simple flexibly, can substitute most of occasion of using liquid-level switch.Along with the requirement that use in market is more and more higher, now a lot of equipment or household electrical appliances need be set bigger differential pressure, and the differential pressure scope of traditional pressure switch is very limited.The tradition pressure switch includes housing, be arranged on the sensitive switch of case top, be threaded in the set screw on the housing, be arranged on the barrier film in the housing inner chamber, be positioned at the piston sheet of set screw below, spring, the bottom roof pressure of piston sheet is on barrier film, spring is arranged between set screw and the piston sheet, the bottom of sensitive switch is provided with switch by sincere, the top of piston sheet is connected by sincere contacting with switch, this pressure switch has only a spring, spring induction is compressed from the power of piston sheet, move on the piston sheet, the switch that directly touches sensitive switch is by sincere, there is following shortcoming in it: differential pressure is by the differential force decision of sensitive switch, but sensitive switch can't be realized big differential force again, thereby makes differential pressure can't be set to the scope of broad.
The utility model content:
The purpose of this utility model is exactly to provide a kind of pressure switch that can realize the differential pressure setting of relative broad range at the deficiency of prior art existence.
To achieve these goals, the technical solution adopted in the utility model is: pressure switch, it includes housing, be arranged on the sensitive switch of case top, be threaded in the set screw on the housing, be arranged on the barrier film in the housing inner chamber, be positioned at the piston sheet of set screw below, main spring, the bottom roof pressure of piston sheet is on barrier film, main spring is arranged between set screw and the piston sheet, the bottom of sensitive switch is provided with switch by sincere, slide and be equipped with the shake-up post in the set screw middle part, the basal sliding that touches post is set on the top of piston sheet, the top of touching post is connected by sincere contacting with switch, touches between post and the piston sheet to be provided with pressure spring.
Described pressure spring is set on the piston sheet.
Described main spring is set in and touches the post outside.
Described shake-up post is the hollow-core construction of top seal, bottom opening.
Described housing includes glue shell, Jiao Gai, and Jiao Gai is fastened and connected in glue shell bottom.
The periphery cramping of described barrier film is between glue shell and glue lid.
The utility model beneficial effect is: the pressure switch that the utility model provides, it includes housing, be arranged on the sensitive switch of case top, be threaded in the set screw on the housing, be arranged on the barrier film in the housing inner chamber, be positioned at the piston sheet of set screw below, main spring, the bottom roof pressure of piston sheet is on barrier film, main spring is arranged between set screw and the piston sheet, the bottom of sensitive switch is provided with switch by sincere, slide and be equipped with the shake-up post in the set screw middle part, the basal sliding that touches post is set on the top of piston sheet, the top of touching post is connected by sincere contacting with switch, touch between post and the piston sheet and be provided with pressure spring, main spring induction is compressed from the power of piston sheet, the not direct touch switch of piston sheet is by sincere, but power is passed to the shake-up post by the compression of pressure spring, then by touching the post touch switch by sincere, differential pressure changes according to the coefficient of elasticity of pressure spring, thereby the differential pressure that can realize relative broad range is set.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a decomposing schematic representation of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described, see shown in Fig. 1～2, the utility model includes housing 1, be arranged on the sensitive switch 2 at housing 1 top, be threaded in the set screw 3 on the housing 1, be arranged on the barrier film 4 in housing 1 inner chamber, be positioned at the piston sheet 5 of set screw 3 belows, main spring 6, the bottom roof pressure of piston sheet 5 is on barrier film 4, main spring 6 is arranged between set screw 3 and the piston sheet 5, the bottom of sensitive switch 2 is provided with switch by sincere 21, slide to be equipped with and touch post 7 in set screw 3 middle parts, the basal sliding that touches post 7 is set on the top of piston sheet 5, the top of touching post 7 contacts by sincere 21 with switch and is connected, and touches between post 7 and the piston sheet 5 to be provided with pressure spring 8.
Pressure spring 8 is set on the piston sheet 5, and main spring 6 is set in and touches post 7 outsides.Touching post 7 be the hollow-core construction of top seal, bottom opening, makes piston sheet 5 smooth and easy and play guide effect in 7 basal slidings of shake-up post.
Operation principle of the present utility model is: main spring 6 inductions are compressed from the power of piston sheet 5, the not direct touch switch of piston sheet 5 is by sincere 21, but power is passed to shake-up post 7 by the compression of pressure spring 8, then by touching post 7 touch switchs by sincere 21, differential pressure changes according to the coefficient of elasticity of pressure spring 8, thereby the differential pressure that can realize relative broad range is set.
Certainly, the above only is a better embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (6)
1. pressure switch, it includes housing (1), be arranged on the sensitive switch (2) at housing (1) top, be threaded in the set screw (3) on the housing (1), be arranged on the barrier film (4) in housing (1) inner chamber, be positioned at the piston sheet (5) of set screw (3) below, main spring (6), the bottom roof pressure of piston sheet (5) is on barrier film (4), main spring (6) is arranged between set screw (3) and the piston sheet (5), the bottom of sensitive switch (2) is provided with switch by sincere (21), it is characterized in that: slide to be equipped with and touch post (7) in described set screw (3) middle part, the basal sliding that touches post (7) is set on the top of piston sheet (5), the top of touching post (7) contacts by sincere (21) with switch and is connected, and touches between post (7) and the piston sheet (5) to be provided with pressure spring (8).
2. pressure switch according to claim 1 is characterized in that: described pressure spring (8) is set on the piston sheet (5).
3. pressure switch according to claim 1 is characterized in that: described main spring (6) is set in and touches post (7) outside.
4. pressure switch according to claim 1 is characterized in that: described shake-up post (7) is the hollow-core construction of top seal, bottom opening.
5. according to any described pressure switch of claim 1-4, it is characterized in that: described housing (1) includes glue shell (11), Jiao Gai (12), and Jiao Gai (12) is fastened and connected in glue shell (11) bottom.
6. pressure switch according to claim 5 is characterized in that: the periphery cramping of described barrier film (4) is between glue shell (11) and Jiao Gai (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201082299U CN202013844U (en) | 2011-04-14 | 2011-04-14 | Pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201082299U CN202013844U (en) | 2011-04-14 | 2011-04-14 | Pressure switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202013844U true CN202013844U (en) | 2011-10-19 |
Family
ID=44784459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201082299U Expired - Fee Related CN202013844U (en) | 2011-04-14 | 2011-04-14 | Pressure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202013844U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996890A (en) * | 2012-12-04 | 2013-03-27 | 慈溪市鼎臣净水管接件厂 | Water purifier pipe connecting member |
| CN108269713A (en) * | 2017-01-03 | 2018-07-10 | 宁波来回转自动化工业有限公司 | A kind of copper pressure switch alarm |
-
2011
- 2011-04-14 CN CN2011201082299U patent/CN202013844U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996890A (en) * | 2012-12-04 | 2013-03-27 | 慈溪市鼎臣净水管接件厂 | Water purifier pipe connecting member |
| CN108269713A (en) * | 2017-01-03 | 2018-07-10 | 宁波来回转自动化工业有限公司 | A kind of copper pressure switch alarm |
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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: 20111019 Termination date: 20140414 |