CN202549716U - Pressure switch with double-elastic element - Google Patents
Pressure switch with double-elastic element Download PDFInfo
- Publication number
- CN202549716U CN202549716U CN2012201470265U CN201220147026U CN202549716U CN 202549716 U CN202549716 U CN 202549716U CN 2012201470265 U CN2012201470265 U CN 2012201470265U CN 201220147026 U CN201220147026 U CN 201220147026U CN 202549716 U CN202549716 U CN 202549716U
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- China
- Prior art keywords
- drive link
- shell
- switch
- pressure switch
- housing
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- Expired - Fee Related
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Abstract
The utility model discloses a pressure switch with a double-elastic element. The pressure switch consists of a housing, a seal cover, a switch, an electrical incoming line interface, a spiral spring and a drive link, wherein the switch is arranged in the housing and is connected with the left side of the housing, the drive link is arranged at the bottom of the housing, the spiral spring is wound on the drive link by taking the drive link as a center, a connecting member and an interface metal piece are arranged at the lower end of the housing, a diaphragm and a bearing plate are arranged between the connecting member and the interface metal piece, a thread hole is formed in the middle of the connecting member and is internally and transversely provided with a disk spring leaf, the disk spring leaf is connected at the bottom end of the spiral spring, an eight-claw spiral wheel is arranged at the lower part of the housing, the drive link is arranged in the middle of the eight-claw spiral wheel, and the lower part of the drive link penetrates into the connecting member. The utility model aims at providing the pressure switch with the double-elastic element, which has the technical effects of being small in volume, large in measurement range, convenient to set, anti-shock, good in stability, long in service life and the like.
Description
Technical field
The utility model relates to a kind of pressure switch, relates in particular to a kind of pair of flexible member pressure switch.
Background technology
Pressure switch is a kind of simple pressure control device, and when being reached rated value by measuring pressure, pressure switch can give the alarm or control signal.Traditional pressure switch all adopts the single-coil spring pipe as the elasticity measurement element; When being reached rated value by measuring pressure; The free end of single-coil spring pipe produces displacement; Realize changing the on off operating mode of switch element, reach control, but this switch pressure measurement range is narrower, pressure set-point is set and bothered, action is unstable, useful life is shorter by the purpose of measuring pressure; Therefore, how to address the above problem, become problem demanding prompt solution.
The utility model content
The technical problem that the utility model will solve is to overcome the deficiency of prior art, provides that a kind of volume is little, two flexible member pressure switches of characteristics such as measuring range is big, conveniently set, shockproof, good stability and long service life.
The utility model solves the technical scheme that its technical problem adopted: a kind of pair of flexible member pressure switch, comprise shell, capping, switch, electric inlet wire interface, coil spring and drive link, and wherein: said switch is located in the shell and is connected with the shell left side; Drive link is located at outer casing bottom; Coil spring with the drive link be the center winding on drive link, said shell lower end is provided with connecting elements and interface metalwork, is provided with barrier film and bearing plate between said connecting elements and interface metalwork; The connecting elements middle part is a screwed hole; Laterally be provided with dish-shaped shell fragment in the screwed hole, dish-shaped shell fragment connects the coil spring bottom, and said outer casing underpart is provided with eight pawl helical wheels; Drive link is located at eight pawl helical wheels middle part, and wear to connecting elements the bottom.
A kind of pair of above-mentioned flexible member pressure switch, switch is a sensitive switch.
A kind of pair of above-mentioned flexible member pressure switch, shell one side is provided with the protection chain, and protection chain one end is fixed on the shell left side, and the other end links to each other with screw in the capping.
A kind of pair of above-mentioned flexible member pressure switch, the bearing plate bottom is provided with the O RunddichtringO.
After the utility model adopts said structure, use through the combination of using the two flexible members of dish-like shell fragment and helical spring, guaranteed that volume of switch is little, its pressure adjustable range is 0 MPa-40 MPa, has guaranteed the effect that measuring range is big; Switch can be selected for use multiple, has improved the establishing method of pressure set-point, the convenient setting, and the elasticity measurement element can guarantee that measuring range is big with single-coil spring pipe or diaphragm or bellows or bellows.
Two flexible member pressure switches of the utility model have following characteristics:
1, can improve the stability and the useful life of pressure switch action;
But 2, the scope of expansion measuring pressure supporting body (medium), except that the solid internal stress, all gas, liquid, liquid, corrosion, the pressure measxurement of explosive medium all can be measured.
3, the shell fragment of particular design stability makes switch vibrate the place with what, and stronger vibrationproof performance is arranged.
4, the use of the elastomeric material of high-quality makes this switch motion value stabilization, and repeatability is high, and return difference is little, does not have the shake drift.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the plan structure sketch map of the utility model capping;
Fig. 3 is the main TV structure sketch map of the utility model eight pawl helical wheels;
Fig. 4 is the perspective view of the utility model connecting elements;
Fig. 5 is the perspective view of the utility model interface metalwork.
Fig. 6 is the utility model butterfly shell fragment plan structure sketch map.
Embodiment
To combine accompanying drawing that the utility model is described further below, shown in Fig. 1-5, a kind of pair of flexible member pressure switch of the utility model; Comprise shell 1, capping 2, switch 3, electric inlet wire interface 4, coil spring 5 and drive link 6, wherein: switch 3 is located in the shell 1 and is connected with shell 1 left side, and drive link 5 is located at shell 1 bottom; Coil spring 5 with drive link 6 be the center winding on drive link 6, shell 1 lower end is provided with connecting elements 7 and interface metalwork 8,8 of connecting elements 7 and interface metalworks are provided with barrier film and bearing plate 9; Connecting elements 7 middle parts are screwed hole 71; Laterally be provided with dish-shaped shell fragment 10 in the screwed hole 71, dish-shaped shell fragment 10 connects coil spring 5 bottoms, and said shell 1 bottom is provided with eight pawl helical wheels 11; Drive link 6 is located at eight pawl helical wheels, 11 middle parts, and wear to connecting elements 7 bottom.
Switch 3 is a sensitive switch.
Shell 1 one sides are provided with protection chain 12, and protection chain 12 1 ends are fixed on shell 1 left side, and the other end links to each other with screw in the capping 2.
The utility model by two flexible member effects that coil spring 5 and dish-shaped shell fragment 10 are formed, transmits pressure through barrier film and bearing plate 9 when concrete the use; When pressure reaches the deformation pressure of two flexible member combinations, dish-shaped shell fragment 10 upsets, switch 3 starts; The deformation pressure of wherein two flexible member combinations can be finely tuned through eight pawl helical wheels 11; Along with the increase of operating pressure, surpass precompression and make drive link 6 produce displacement, coil spring 5 produces compression; Contact action up to drive link 6 pull switchs 3 bottoms reaches the effect that switch 3 moves under certain pressure; When operating pressure reduced, coil spring 5 promoted drive link 6 and resets, thereby switch 3 is also resetted, and does not need specific purpose tool in this process, and only with hand is stirred the adjustment that can realize pressure set-point, and is time saving and energy saving.But the switch of two flexible member combinations also safety action is stable, and repeatability is high, and return difference is little, does not have characteristics such as drift as value.
In sum, the utility model is processed actual sample and through repeatedly use test, is seen that from the effect of use test provable the utility model can reach the purpose that it is expected like specification and diagramatic content, and practical value is unquestionable.The above embodiment that lifts only is used for conveniently illustrating the utility model; Be not that the utility model is done any pro forma restriction; Have common knowledge the knowledgeable in the technical field under any,, utilize technology contents that the utility model discloses to do the local equivalent embodiment that changes or modify if in the scope that does not break away from technical characterictic that the utility model is carried; And do not break away from the technical characterictic content of the utility model, all still belong in the scope of the utility model technical characterictic.
Claims (4)
1. two flexible member pressure switch; Comprise shell (1), capping (2), switch (3), electric inlet wire interface (4), coil spring (5), drive link (6) and; It is characterized in that: said switch (3) is located in the shell (1) and is connected with shell (1) left side, and drive link (5) is located at shell (1) bottom, and coil spring (5) is that the center winding is on drive link (6) with drive link (6); Said shell (1) lower end is provided with connecting elements (7) and interface metalwork (8); Be provided with barrier film and bearing plate (9) between connecting elements (7) and interface metalwork (8), connecting elements (7) middle part is screwed hole (71), laterally is provided with dish-shaped shell fragment (10) in the screwed hole (71); Dish shell fragment (10) connects coil spring (5) bottom; Said shell (1) bottom is provided with eight pawl helical wheels (11), and drive link (6) is located at eight pawl helical wheels (11) middle part, and wear to connecting elements (7) bottom.
2. a kind of pair of flexible member pressure switch according to claim 1 is characterized in that said switch (3) is a sensitive switch.
3. a kind of pair of flexible member pressure switch according to claim 1 is characterized in that, said shell (1) one side is provided with protection chain (12), and protection chain (12) one ends are fixed on shell (1) left side, and the other end links to each other with screw in the capping (2).
4. a kind of pair of flexible member pressure switch according to claim 1 is characterized in that, said bearing plate (9) bottom is provided with O RunddichtringO (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201470265U CN202549716U (en) | 2012-08-28 | 2012-08-28 | Pressure switch with double-elastic element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201470265U CN202549716U (en) | 2012-08-28 | 2012-08-28 | Pressure switch with double-elastic element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202549716U true CN202549716U (en) | 2012-11-21 |
Family
ID=47170306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201470265U Expired - Fee Related CN202549716U (en) | 2012-08-28 | 2012-08-28 | Pressure switch with double-elastic element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202549716U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719901A (en) * | 2014-11-28 | 2016-06-29 | 王刚 | Dish-shaped spring sheet automatic pressure switch |
-
2012
- 2012-08-28 CN CN2012201470265U patent/CN202549716U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719901A (en) * | 2014-11-28 | 2016-06-29 | 王刚 | Dish-shaped spring sheet automatic pressure switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20121121 Termination date: 20170828 |