CN204242943U - A kind of pressure switch - Google Patents
A kind of pressure switch Download PDFInfo
- Publication number
- CN204242943U CN204242943U CN201420751764.XU CN201420751764U CN204242943U CN 204242943 U CN204242943 U CN 204242943U CN 201420751764 U CN201420751764 U CN 201420751764U CN 204242943 U CN204242943 U CN 204242943U
- Authority
- CN
- China
- Prior art keywords
- fixed
- housing
- contact
- pressure switch
- push rod
- 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
Landscapes
- Thermally Actuated Switches (AREA)
Abstract
The utility model provides the utility model to provide a kind of pressure switch, and it comprises valve body and housing, and the two ends up and down of valve body are run through shoulder hole, is provided with diaphragm, is provided with elastic contact blade in epicoele in shoulder hole, the bottom surface of elastic contact blade and film contact; The bottom of housing offers guide hole, push rod is equipped with in guide hole, the lower end of push rod contacts with described elastic contact blade, fixed contact and moving contact is provided with in housing, moving contact is fixed on spring leaf, and push rod is positioned at immediately below spring leaf, and the distance between push rod and described spring leaf is less than the maximum deformation quantity of elastic contact blade, fixed contact and described spring leaf are fixing on the housing respectively by rivet, and rivet to extend out to described housing outer and be fixed with metal insert in described rivet end.The utility model pressure switch, simple and compact for structure, volume is little, easy to assembly; Production cost is low, and job stability is high, can use in high temperature environments, applied widely.
Description
Technical field
The utility model relates to a kind of switch, particularly a kind of pressure switch.
Background technology
Pressure switch is a kind of switch triggered by air pressure or hydraulic pressure.When system internal pressure is higher or lower than specified safe pressure, in inductor, video disc is instantaneous is moved, and is switched on or switched off by connecting guide rod pull switch joint, when Pressure Drop to or when rising specified recovery value, video disc wink resets, and switch automatically resets.Traditional pressure switch construction is complicated, and volume is large, and manufacturing cost is high; And owing to being subject to structure influence, poor work stability, can not use at relatively high temperatures, and applicable working condition condition is limited.
Utility model content
(1) technical problem that will solve
The technical problems to be solved in the utility model is to provide that a kind of structure is simple, volume is little, low cost of manufacture and the high pressure switch of job stability.
(2) technical scheme
For solving the problems of the technologies described above, the utility model provides a kind of pressure switch, it comprises valve body 1 and is fixed on the housing 2 of described valve body 1 upper end, the two ends up and down of described valve body 1 are run through shoulder hole, diaphragm 3 is provided with and described shoulder hole is divided into epicoele and cavity of resorption by described diaphragm 3 in described shoulder hole, be provided with elastic contact blade 4 in described epicoele, the bottom surface of described elastic contact blade 4 contacts with described diaphragm 3, the bottom of described housing 2 offers the guide hole being communicated with described housing 2 inside, push rod 6 is equipped with in described guide hole, the lower end of described push rod 6 contacts with described elastic contact blade 4, be provided with fixed contact 7a in described housing 2 and be fitted in the moving contact 7b of described fixed contact 7a upper end, described moving contact 7b is fixed on spring leaf 8, described push rod 6 is positioned at immediately below described spring leaf 8, and the distance between described push rod 6 and described spring leaf is less than the maximum deformation quantity of described elastic contact blade, described fixed contact and described spring leaf are fixed on described housing 2 respectively by rivet, and described rivet to extend out to described housing 2 outer and be fixed with metal insert 9 in described rivet end.
Further, the lower edge of described housing 2 is provided with annular protrusion, and described annular protrusion is fitted in the upper surface limit of described diaphragm 4.
Further, described housing 2 comprises lid 21 and is fixed on the end cap 22 of described lid 21 lower end, the lower ending opening of described lid 21, and described end cap 22 covers over said opening, and described guide hole is opened on described end cap 22.
Further, described elastic contact blade 4 is circular contact, and the edge upwards bending formation elastic portion of described circular contact, the top of described elastic portion contacts with the bottom surface of described housing 2.
Further, also comprise fixed touching plate 7c, described fixed touching plate is fixed in described housing 2 by rivet, and described fixed contact 7a is positioned at the end of described fixed touching plate 7c.
Further, described diaphragm 3 is made up of high-temperature resistant rubber.
Further, the bottom surface of described spring leaf 8 is provided with contact projection, and described contact projection is positioned at directly over described push rod 6.
(3) beneficial effect
The utility model pressure switch, simple and compact for structure, volume is little, easy to assembly; Production cost is low, and job stability is high, can use in high temperature environments, applied widely.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model pressure switch;
Fig. 2 is the cutaway view of the utility model pressure switch;
Fig. 3 is the explosive view of the utility model pressure switch;
Fig. 4 is the cut-away view of the utility model pressure switch.
Embodiment
Consult Fig. 1 ~ Fig. 4, the utility model provides a kind of pressure switch, it comprises valve body 1 and is fixed on the housing 2 of this valve body 1 upper end, run through at the two ends up and down of valve body 1 and have shoulder hole, diaphragm 3 is provided with in shoulder hole, in order to improve the scope of application, this diaphragm 3 adopts high-temperature resistant rubber to make, and shoulder hole is divided into epicoele and cavity of resorption by this this diaphragm 3, cavity of resorption is for being communicated with pressure piping, elastic contact blade 4 is provided with in epicoele, this elastic contact blade 4 is circular contact, and the edge of circular contact upwards bending (bending angle is 10-40 degree) forms elastic portion, the top of elastic portion contacts with the bottom surface of housing 2, the bottom surface of elastic contact blade 4 contacts with diaphragm 3, housing 2 comprises lid 21 and is fixed on the end cap 22 of lid 21 lower end, the lower ending opening of lid 21, end cap 22 covers on this opening, this end cap offers guide hole, in this guide hole, be equipped with push rod 6, the lower end of this push rod 6 contacts with elastic contact blade 4, in housing 2, be fixed with fixed touching plate 7c and spring leaf 8 by rivet, and rivet extends out to outside housing, and there is metal insert 9 at the end winding support of rivet, fixed contact 7a is provided with in the end of fixed touching plate 7c, moving contact 7b is provided with in the end of spring leaf 8, and the upper-end contact of this moving contact 7b and fixed contact 7a, gap is had between spring leaf and push rod, this gap is less than the maximum deformation quantity of elastic contact blade, in order to can make spring leaf with there is during ejector pin contact good distortion, be provided with contact projection at the bottom surface of spring leaf 8, this contact projection is positioned at directly over push rod 6, in order to reach better stability, be provided with annular protrusion in the lower edge of housing 2, annular protrusion is fitted in the upper surface limit of diaphragm 4, improves its laminating tightness.
Below brief description is done to the operation principle of this pressure switch;
During use, valve body is arranged on pressure piping, as on pneumatic circuit or fluid pressure line, when overpressure is excessive, under the effect of the pressure, diaphragm is upwards heaved, elastic contact blade deformed and moves upward, promoting push rod moves, push rod promotes Spring deformation makes fixed contact and moving contact depart from, thus the electrical connection disconnected on fixed contact and moving contact, play the effect of switch; When overpressure is normal, diaphragm and elastic contact blade are all without distortion, and without active force between push rod and spring leaf, under the effect of spring leaf, fixed contact and moving contact resume contacts and be energized.
The utility model pressure switch, simple and compact for structure, volume is little, easy to assembly; Production cost is low, and job stability is high, can use in high temperature environments, applied widely.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (7)
1. a pressure switch, it is characterized in that: comprise valve body (1) and be fixed on the housing (2) of described valve body (1) upper end, the two ends up and down of described valve body (1) are run through shoulder hole, diaphragm (3) is provided with and described shoulder hole is divided into epicoele and cavity of resorption by described diaphragm (3) in described shoulder hole, be provided with elastic contact blade (4) in described epicoele, the bottom surface of described elastic contact blade (4) contacts with described diaphragm (3), the bottom of described housing (2) offers and is communicated with the inner guide hole of described housing (2), push rod (6) is equipped with in described guide hole, the lower end of described push rod (6) contacts with described elastic contact blade (4), be provided with fixed contact (7a) in described housing (2) and be fitted in the moving contact (7b) of described fixed contact (7a) upper end, described moving contact (7b) is fixed on spring leaf (8), described push rod (6) is positioned at immediately below described spring leaf (8), and the distance between described push rod (6) and described spring leaf is less than the maximum deformation quantity of described elastic contact blade, described fixed contact and described spring leaf are fixed on described housing (2) respectively by rivet, and described rivet extends out to described housing (2) and be fixed with metal insert (9) in described rivet end outward.
2. pressure switch as claimed in claim 1, it is characterized in that: the lower edge of described housing (2) is provided with annular protrusion, described annular protrusion is fitted in the upper surface limit of described diaphragm (4).
3. pressure switch as claimed in claim 1, it is characterized in that: described housing (2) comprises lid (21) and is fixed on the end cap (22) of described lid (21) lower end, the lower ending opening of described lid (21), described end cap (22) covers over said opening, and described guide hole is opened on described end cap (22).
4. pressure switch as claimed in claim 1, it is characterized in that: described elastic contact blade (4) is circular contact, the edge upwards bending formation elastic portion of described circular contact, the top of described elastic portion contacts with the bottom surface of described housing (2).
5. pressure switch as claimed in claim 1, it is characterized in that: also comprise fixed touching plate (7c), described fixed touching plate is fixed in described housing (2) by rivet, and described fixed contact (7a) is positioned at the end of described fixed touching plate (7c).
6. pressure switch as claimed in claim 1, is characterized in that: described diaphragm (3) is made up of high-temperature resistant rubber.
7. the pressure switch as described in any one of claim 1 to 6, is characterized in that: the bottom surface of described spring leaf (8) is provided with contact projection, and described contact projection is positioned at directly over described push rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420751764.XU CN204242943U (en) | 2014-12-03 | 2014-12-03 | A kind of pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420751764.XU CN204242943U (en) | 2014-12-03 | 2014-12-03 | A kind of pressure switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204242943U true CN204242943U (en) | 2015-04-01 |
Family
ID=52772403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420751764.XU Active CN204242943U (en) | 2014-12-03 | 2014-12-03 | A kind of pressure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204242943U (en) |
-
2014
- 2014-12-03 CN CN201420751764.XU patent/CN204242943U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102599819A (en) | Pressure-relief return valve for coffee maker | |
| CN206464408U (en) | A kind of battery pole ear positional punch device | |
| CN204242943U (en) | A kind of pressure switch | |
| CN203374872U (en) | Valve base sealing structure of ball valve | |
| CN202812416U (en) | Streamline eccentric cutoff sphere valve with cam sealing parts | |
| CN205041904U (en) | Flow stopping presss from both sides | |
| CN205004494U (en) | Pull out plug of inserting fast | |
| CN202549711U (en) | Manual micro switch | |
| CN202946110U (en) | Subsurface safety valve | |
| CN203736026U (en) | Electric cooker temperature limiter | |
| CN106763770B (en) | A kind of high temperature resistant boiler shell through hole sealing device | |
| CN208706550U (en) | One kind is flexible coupling can repelling structure device | |
| CN204420299U (en) | A kind of cup push water tap of multioperation mode | |
| CN204541997U (en) | Plane mop easy to assemble | |
| CN201743475U (en) | Exhaust device of pressure cooker | |
| CN103971989A (en) | Pneumatic relay | |
| CN203506264U (en) | Beverage glass | |
| CN202525968U (en) | Novel insulating bottle stopper | |
| CN203948643U (en) | Pilot-operated type adjusting valve | |
| CN203836424U (en) | Adapter assembly of oil pressure sensor | |
| CN204410537U (en) | A kind of understructure on electric kettle | |
| CN204271137U (en) | Piezoelectric transducer | |
| CN202772042U (en) | Pneumatic switch capable of controlling turn-on time | |
| CN208090047U (en) | high temperature pneumatic actuator | |
| CN209341308U (en) | A kind of controlling valve for gas range body structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Xiao Dong Industrial Park in Yuyao city of Zhejiang province in 315400 River Street in Ningbo City Patentee after: NINGBO JIAYIN ELECTRO MECHANICAL TECHNOLOGY CO., LTD. Address before: Xiao Dong Industrial Park in Yuyao city of Zhejiang province in 315400 River Street in Ningbo City Patentee before: Ningbo Jiayin Electro Mechanical Technology Co., Ltd. |