CN201167061Y - Pressure switch - Google Patents
Pressure switch Download PDFInfo
- Publication number
- CN201167061Y CN201167061Y CNU2007200606958U CN200720060695U CN201167061Y CN 201167061 Y CN201167061 Y CN 201167061Y CN U2007200606958 U CNU2007200606958 U CN U2007200606958U CN 200720060695 U CN200720060695 U CN 200720060695U CN 201167061 Y CN201167061 Y CN 201167061Y
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- China
- Prior art keywords
- pressure switch
- pressure
- switch according
- beating
- shell
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Abstract
The utility model relates to a pressure switch, and is characterized in that the pressure switch comprises a bottom shell provided with a pressure interface, an elastic diaphragm, a sealing gasket between the bottom shell and the elastic diaphragm, an automatic restorable ejector device, a kick-type contact jumping mechanism, an outer shell for mounting the jumping mechanism and a clipping ring for connecting the outer shell with the bottom shell. The pressure switch generates sudden jump when the pressure reaches a jump setting point; the on/off status of a contact generates sudden change; the sudden jump is generated when the pressure is reduced to a restoring point; no middle state exists between the jump point pressure and the restoring point pressure, so that the frequent change of the on/off status is not generated due to the slight pressure fluctuation.
Description
Technical field
The utility model relates to a kind of pressure switch, especially for the pressure switch of the dual-purpose gas fired boiler of heating bathroom.The pressure switch of this kind application requirements a kind of under low pressure (as 0.05Mpa) operating stably, and pressure action set point can be regulated.
Technical background
At present, used pressure switch in the dual-purpose gas fired boiler of heating bathroom (as the wall hanging stove), most of proximity pressure switch that adopts, promptly electric contact point is close gradually with the variation of pressure, is close together when pressure is big, and circuit is connected.The subject matter of this kind pressure switch is, electric contact point very near the time, the fluctuation of pressure can cause the on off state frequent transitions, and Equipment Control is gone wrong.
The utility model content
At the problems referred to above of the prior art, the purpose of this utility model is to provide a kind of Kick type pressure switch of steady operation under low pressure.Described pressure switch reaches when beating set point at pressure, produce unexpected beating, the contact on off operating mode produces suddenly and changes, suddenly rebound again when pressure is reduced to recurrent point, there is not intermediateness between point pressure and the recurrent point pressure beating, can not produce the frequent transitions of on off state because of the minor fluctuations of pressure.
Described pressure switch comprises the drain pan that has pressure interface, flexible sheet, the sealing gasket between the drain pan flexible sheet, can automatically reset pin-lift arrangement, the shell of the described mechanism of beating is installed by Kick type contact bounce mechanism, and the snap ring that shell and drain pan are linked together.
Described drain pan is that screw thread or bayonet socket are connected with the interface of pressure source, and its other end is for installing the groove of described diaphragm.
Described diaphragm adopts stainless steel, beryllium-bronze or other elastomeric materials, its surface is made into annular corrugated concaveconvex structure, this structure can make diaphragm produce bigger elastic deformation when pressurized, the deflection of diaphragm and pressure relation in direct ratio within the specific limits.
Between the edge of described diaphragm and described drain pan, place sealing gasket, can prevent that the pressure in the drain pan from leaking.
Described can automatically reset pin-lift arrangement, its outer rim is a standing part, its middle part has a movable part to link to each other with standing part by flexure strip, movable part has the push rod of a projection, the center of described movable part is provided with set screw A.The outer rim of described standing part is pressed on the described diaphragm, and described set screw A one end has regulating tank, and the other end of set screw A is towards described diaphragm.Rotation set screw A can adjust the distance of described screw and diaphragm.After described diaphragm pressurized projection, push set screw A, thereby drive described movable part motion, also drive described push rod simultaneously and move.
Described Kick type contact bounce mechanism is made of 4 parts.First is the shell fragment of beating, the stator of second portion for linking to each other with the described shell fragment of beating, and third part is for often opening the contact stator, and the 4th part is normally closed contact stator.Described shell fragment one end of beating is fixed on the second portion stator, and the other end has the contact contact.The both sides of the described shell fragment of beating are elastic fin, and this fin leans against on the projection of described second portion stator.Also have the contact contact on the third part stator, close with the one side that contacts the contact of the shell fragment of beating, and on the another side of the contact contact of the shell fragment of beating and the 4th partial fixing sheet to contact the contact close.Described shell fragment is to contact with described the 4th stator under stress-free state after the installation.When described push rod pressurized that can automatically reset pin-lift arrangement promotes the described shell fragment of beating when moving and beats, the 4th stator contact contact is left in the contact contact on the described shell fragment of beating, and contacts with the contact that contacts on the third part stator.When described push rod pressurized that can automatically reset pin-lift arrangement reduces, described push rod also reduces the thrust of the shell fragment of beating, and the shell fragment resilience of beating is restored.
Described Kick type contact bounce mechanism is fixed in the shell, and second, third of described mechanism, the 4th partial fixing sheet stretch out outside the shell, as electrical terminal.Second portion is a common port, and third part is Chang Kaiduan, and the 4th part is a normal-closed end.Be provided with location hole and locator protrusions that described three stators are installed in the described shell.
An adjustable screw B is set on the described shell, and the one end is near the contact contact on the third part stator, thereby and can promote this contact and regulate the spacing of getting an electric shock on this contact and the shell fragment of beating, thereby change the resilience state of the shell fragment of beating.
Described shell is tightened together by snap ring and drain pan, and shell is pressed on the outer rim of described standing part that can automatically reset pin-lift arrangement simultaneously.
Because the utility model has adopted technique scheme, the shell fragment of beating behind the pressure switch pressurized is beated, and by the be electrically connected disconnection of described common port to described normal-closed end, described common port is to the connection that is electrically connected of described Chang Kaiduan.When being reduced to a certain degree, pressure resets again.Pressure and reseat pressure when beating have difference.Pressure when beating is adjusted by set screw A, and the size of the difference that resets is adjusted by set screw B, thereby has realized adjustable kick switch.
Described pressure switch not only can be used for the dual-purpose gas fired boiler of heating bathroom, also can be used for the device that various detected pressures change.
Description of drawings
Fig. 1 is a pressure switch contour structures schematic diagram described in the utility model.
Fig. 2 is the structural representation of the utility model central authorities section.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
With reference to shown in Figure 1, pressure switch described in the utility model comprises drain pan 1, shell 2, snap ring 3, reaches the binding post of being drawn by inside: common port 52, Chang Kaiduan 53, normal-closed end 54, and set screw B (7).
With reference to shown in Figure 2, be the cut-away view of pressure switch described in the utility model.Inner assembly comprises diaphragm 4, sealing gasket 8, shell fragment 51, set screw A (6), pin-lift arrangement 9.
After pressure entered from drain pan, diaphragm 4 pressurized projectioies promoted set screw A (6), and the push rod 91 that promotes simultaneously on the pin-lift arrangement 9 moves up, and push rod 91 promotes to beat shell fragment 51 again.Beat contact on the shell fragment 51 is close together with normal-closed end 54 under normal conditions, connects on electric.After the shell fragment 51 of beating is promoted by push rod 91, from the contact of normal-closed end 54 under leave, jump to Chang Kaiduan 53 and contact.After the pressure of input reduces, beat shell fragment 51 not immediately from rebound Chang Kaiduan 53 contact, but pressure is little of just rebound the frequent break-make of having avoided the pressure minor swing to be caused after certain value.
Adjust set screw A (6), can change the distance of 4 on set screw A (6) and diaphragm, thereby change the pressure of spring point.Adjust set screw B (7), can change the contact position on the Chang Kaiduan 53, thereby change the position at the place, shell fragment 51 spring back of beating, can change the state of shell fragment 51 bounce-backs of beating, realize recovering adjustable in pressure.
The above-mentioned execution mode of the utility model only helps understanding inventive concept of the present utility model, rather than it is determinate, and the utility model is not limited to the given details of this specification, but enclosing claims and being equal within the scope of replacement, can improve.
Claims (9)
1, a kind of pressure switch, it is characterized in that: comprise the drain pan that has pressure interface, flexible sheet, sealing gasket between the drain pan flexible sheet, can automatically reset pin-lift arrangement, the shell of the described mechanism of beating is installed by Kick type contact bounce mechanism, and the snap ring that shell and drain pan are linked together.
2, pressure switch according to claim 1 is characterized in that: described flexible sheet adopts stainless steel, beryllium-bronze or other elastomeric materials, and its surface is made into annular corrugated concaveconvex structure.
3, pressure switch according to claim 1, it is characterized in that: described can automatically reset pin-lift arrangement, its outer rim is a standing part, its middle part has a movable part to link to each other with standing part by flexure strip, movable part has the push rod of a projection, and the center of described movable part is provided with set screw.
4, pressure switch according to claim 3 is characterized in that: the flexure strip between described standing part and the movable part can be metal or plastics.
5, pressure switch according to claim 4 is characterized in that: described standing part and movable part can be made as a whole in the mode of mold injection.
6, pressure switch according to claim 3 is characterized in that: the center of described movable part is provided with rotary set screw.
7, pressure switch according to claim 1, it is characterized in that: described Kick type contact bounce mechanism, constitute by 4 parts, be that first is the shell fragment of beating, the stator of second portion for linking to each other with the described shell fragment of beating, third part is for often opening the contact stator, and the 4th part is normally closed contact stator.
8, pressure switch according to claim 1 is characterized in that: an adjustable screw is set on the described shell, is used to regulate the described shell fragment resilient pressure point of beating.
9, pressure switch according to claim 1 is characterized in that: described shell and drain pan are connected and fixed by snap ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200606958U CN201167061Y (en) | 2007-12-03 | 2007-12-03 | Pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200606958U CN201167061Y (en) | 2007-12-03 | 2007-12-03 | Pressure switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201167061Y true CN201167061Y (en) | 2008-12-17 |
Family
ID=40192452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200606958U Expired - Fee Related CN201167061Y (en) | 2007-12-03 | 2007-12-03 | Pressure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201167061Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865765A (en) * | 2016-03-31 | 2016-08-17 | 北京康斯特仪表科技股份有限公司 | Apparatus and method for detecting switching value of pressure switch |
-
2007
- 2007-12-03 CN CNU2007200606958U patent/CN201167061Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865765A (en) * | 2016-03-31 | 2016-08-17 | 北京康斯特仪表科技股份有限公司 | Apparatus and method for detecting switching value of pressure switch |
| CN105865765B (en) * | 2016-03-31 | 2018-12-14 | 北京康斯特仪表科技股份有限公司 | A kind of variable Rate approaches the device and method of detection pressure switch switching value |
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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 | ||
| CP02 | Change in the address of a patent holder |
Address after: Jinding Science and Technology Industrial Park, Jinzhou Road 519085 Guangdong city of Zhuhai province No. 12 Patentee after: GTC Gas Techonology Components Co., Ltd. Address before: 519002, 2, Xinghua Road 113, Guangdong, Zhuhai, Xiangzhou Patentee before: GTC Gas Techonology Components Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20161203 |