CN204204743U - Direct-acting type pressure switch - Google Patents
Direct-acting type pressure switch Download PDFInfo
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- CN204204743U CN204204743U CN201420647499.0U CN201420647499U CN204204743U CN 204204743 U CN204204743 U CN 204204743U CN 201420647499 U CN201420647499 U CN 201420647499U CN 204204743 U CN204204743 U CN 204204743U
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Abstract
A kind of direct-acting type pressure switch, comprise base, the main channel of detected fluid is provided with in described base, the detection mouth communicated with described main channel, the pressure-sensitive diaphragm be tightly connected with described detection mouth, be arranged at the underdrive bar of the side away from described main channel of described pressure-sensitive diaphragm, described underdrive bar by described pressure-sensitive diaphragm, thus changes the on off operating mode of switch element; Described switch element comprises determines splicing ear and the terminal that is dynamically connected, moving contact is provided with in described lower end of determining splicing ear, moving contact is provided with at the free end of the elastic arm of the described terminal that is dynamically connected, control arm is provided with in the close described underdrive bar side of described elastic arm, the free end of described control arm is connected with conductive spring, and the other end of described conductive spring is connected with described moving contact; Describedly determine splicing ear and the terminal that is dynamically connected is fixed on upper casing, described upper casing is connected with described base.The utility model has the advantage that structure is simpler, cost is cheaper and sensitivity is good.
Description
Technical field
The utility model relates to a kind of direct-acting type pressure switch, especially a kind of direct-acting type pressure switch detected for fluid pressure with joint, seal membrane, push rod, spring, housing and switch base.
Background technology
Pressure switch is a kind of simple pressure control device.When being reached rated value by measuring pressure, pressure switch can give the alarm or control signal.The operation principle of pressure switch is: when by measuring pressure overrate, and the free end of flexible member produces displacement, changes the on off operating mode of switch element, reaches and controls or detect by the object of measuring pressure.Switch form has open in usual and normally closed type.What switch element the most frequently used at present adopted is travel switch.
Chinese patent literature CN1909138 discloses a kind of novel pressure switch, use travel switch as switch element, this pressure switch is primarily of joint, seal membrane, push rod, spring, housing, the parts such as switch base and sensitive switch form, joint is the connector of pressure switch and steam raising plant, also be the assembling matrix of seal membrane simultaneously, with housing, seal membrane and push rod are assemblied in joint, assembled switch seat is again assembled after spring and pad in housing, just define the assembly experiencing pressure, pressure size converts the displacement of push rod to, for promoting the contact of the sensitive switch be installed on switch base.By by-pass cock seat screw-in depth setting pressure switch motion point in the housing, then in the local location fluid sealant bonding location of the faying face of switch base and housing.
This by travel switch, as the pressure switch of switch element, there are the following problems, and one is the complex structure of travel switch own, and cost is high, and make the structure of pressure switch more complicated, cost is also higher; Two is the restrictions due to travel switch structure, and make travel switch sometimes there is loose contact problem, the homogeneity of product of build-up of pressure switch is poor; Three is the environment because pressure switch uses, and as high temperature, high humidity etc., affects the sensitivity of travel switch, thus makes pressure switch sensitivity decrease.
Utility model content
The purpose of this utility model is for the problems referred to above, provides to society the direct-acting type pressure switch that a kind of structure is simpler, cost is cheaper and sensitivity is good.
The technical solution of the utility model is: design a kind of direct-acting type pressure switch, comprise base, the main channel of detected fluid is provided with in described base, the detection mouth communicated with described main channel, the pressure-sensitive diaphragm be tightly connected with described detection mouth, be arranged at the underdrive bar of the side away from described main channel of described pressure-sensitive diaphragm, described underdrive bar by described pressure-sensitive diaphragm, thus changes the on off operating mode of switch element; Described switch element comprises determines splicing ear and the terminal that is dynamically connected, moving contact is provided with in described lower end of determining splicing ear, moving contact is provided with at the free end of the elastic arm of the described terminal that is dynamically connected, control arm is provided with in the close described underdrive bar side of described elastic arm, the free end of described control arm is connected with conductive spring, and the other end of described conductive spring is connected with described moving contact; Describedly determine splicing ear and the terminal that is dynamically connected is fixed on upper casing, described upper casing is connected with described base.
As to improvement of the present utility model, between described upper casing and described pressure-sensitive diaphragm, be also provided with the seal washer for sealing detection mouth.
As to improvement of the present utility model, described upper casing is provided with hole clipping, and described base is provided with card ear, and described upper casing is connected by described hole clipping and described card ear with described base.
As to improvement of the present utility model, also have the holding part for holding total pressure adjusting part on the housing, described total pressure adjusting part is located in described holding part.
As to improvement of the present utility model, described total pressure adjusting part comprises uploads lever, total pressure regulating spring, spring compressor and Spring lock catch, described lever, total pressure regulating spring, spring compressor and the Spring lock catch uploaded is located in described holding part successively from bottom to up, and described Spring lock catch is by the second card ear and the hook groove clamping be located on described holding part inwall.
As to improvement of the present utility model, described Spring lock catch also has the adjusting rod for regulating total pressure regulating spring pressure size.
As to improvement of the present utility model, described adjusting rod is screw rod.
As to improvement of the present utility model, be connected to pipe line fast joint respectively at the two ends of described main channel.
As to improvement of the present utility model, described pipe line fast joint comprises and connects buckle soon, connects claw and O RunddichtringO soon, and the described claw that connects soon is connected with the port of described main channel by connecing buckle soon with O RunddichtringO.
The utility model eliminates traditional travel switch owing to have employed, and use described switch element instead and comprise and determine splicing ear and to be dynamically connected terminal, moving contact is provided with in described lower end of determining splicing ear, moving contact is provided with at the free end of the elastic arm of the described terminal that is dynamically connected, control arm is provided with in the close described underdrive bar side of described elastic arm, the free end of described control arm is connected with conductive spring, and the other end of described conductive spring is connected with described moving contact; Describedly determine splicing ear and the terminal that is dynamically connected is fixed on upper casing, the structure that described upper casing is connected with described base, so, the utility model have structure more simply, cost is cheaper and sensitivity is good advantage.
The utility model is extensively suitable for the pressure detecting of water, oil or gas medium.
Accompanying drawing explanation
Fig. 1 is the stereo decomposing structural representation of a kind of embodiment of the present utility model.
Fig. 2 is the perspective view after Fig. 1 combines.
Fig. 3 is the horizontal sectional structure schematic diagram of Fig. 2.
Embodiment
In description of the present utility model, it will be appreciated that, orientation or the position relationship of the instruction such as " " center ", " on ", D score, "front", "rear", "left", "right" in term be based on orientation shown in the drawings or position relationship; be only the utility model and simplified characterization for convenience of description; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " connection ", " being connected " should be interpreted broadly, and such as, can be fixedly connected with, and also can be that dismounting connects, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also can be indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term can be understood at concrete meaning of the present utility model.In addition, in description of the present utility model, except as otherwise noted, the implication of " multiple ", " some " is two or more.
Refer to Fig. 1 to Fig. 3, what Fig. 1 to Fig. 3 disclosed is a kind of direct-acting type pressure switch, comprise base 1, the main channel 11 of detected fluid is provided with in described base 1, the detection mouth 12 communicated with described main channel 11, the pressure-sensitive diaphragm 2 be tightly connected with described detection mouth 12, is arranged at the underdrive bar 3 of the side away from described main channel 11 of described pressure-sensitive diaphragm 2, described underdrive bar 3 by described pressure-sensitive diaphragm 2, thus changes the on off operating mode of switch element 4; Described switch element 4 comprises determines splicing ear 41 and the terminal 42 that is dynamically connected, moving contact 411 is provided with in described lower end of determining splicing ear 41, moving contact 422 is provided with at the free end of the elastic arm 421 of the described terminal 42 that is dynamically connected, control arm 423 is provided with in close described underdrive bar 3 side of described elastic arm 421, the free end of described control arm 423 is connected with conductive spring 424, and the other end of described conductive spring 424 is connected with described moving contact 422; Describedly determine splicing ear 41 and the terminal 42 that is dynamically connected is fixed on upper casing 5, described upper casing 5 is connected with described base 1.Design like this, makes the utility model have the advantage that structure is simpler, cost is cheaper and sensitivity is good.And can by the pressure switch selecting the conductive spring 424 of different elastic force can produce the different pressures of series.
In the utility model, between described upper casing 5 and described pressure-sensitive diaphragm 2, be also provided with the seal washer 21 for sealing detection mouth 12; Described upper casing 5 is provided with hole clipping 51, and described base 1 is provided with card ear 13, and described upper casing 5 is connected by described hole clipping 51 and described card ear 13 with described base 1, and this structure is conducive to upper casing 5 and the dismounting of base 1, is convenient to maintenance.
In the utility model, described shell 5 also has the holding part 52 for holding total pressure adjusting part 6, and described total pressure adjusting part 6 is located in described holding part 52, for arranging total adjustment pressure of the present utility model; Described total pressure adjusting part 6 comprises uploads lever 61, total pressure regulating spring 62, spring compressor 63 and Spring lock catch 64, described lever 61, total pressure regulating spring 62, spring compressor 63 and the Spring lock catch 64 uploaded is located in described holding part 52 successively from bottom to up, and described Spring lock catch 64 is by the second card ear 641 and the hook groove clamping be located on described holding part 52 inwall; Described Spring lock catch 64 also has the adjusting rod 65 for regulating total pressure regulating spring 62 pressure size; Described adjusting rod 65 can be screw rod.
Conveniently with the connection of external pipe, be connected to pipe line fast joint 7 respectively at the two ends of described main channel 11; Described pipe line fast joint 7 comprises and connects buckle 71 soon, connects claw 72 and O RunddichtringO 73 soon, and the described claw 72 that connects soon is connected with the port of described main channel 11 by connecing buckle 71 soon with O RunddichtringO 73.
Claims (9)
1. a direct-acting type pressure switch, comprise base (1), the main channel (11) of detected fluid is provided with in described base (1), the detection mouth (12) communicated with described main channel (11), the pressure-sensitive diaphragm (2) be tightly connected with described detection mouth (12), be arranged at the underdrive bar (3) of the side away from described main channel (11) of described pressure-sensitive diaphragm (2), described underdrive bar (3) by described pressure-sensitive diaphragm (2), thus changes the on off operating mode of switch element (4); It is characterized in that, described switch element (4) comprises determines splicing ear (41) and the terminal that is dynamically connected (42), moving contact (411) is provided with in described lower end of determining splicing ear (41), moving contact (422) is provided with at the free end of the elastic arm (421) of the described terminal that is dynamically connected (42), control arm (423) is provided with in close described underdrive bar (3) side of described elastic arm (421), the free end of described control arm (423) is connected with conductive spring (424), and the other end of described conductive spring (424) is connected with described moving contact (422); Describedly determine splicing ear (41) and the terminal that is dynamically connected (42) is fixed on upper casing (5), described upper casing (5) is connected with described base (1).
2. direct-acting type pressure switch according to claim 1, is characterized in that, is also provided with the seal washer (21) for sealing detection mouth (12) between described upper casing (5) and described pressure-sensitive diaphragm (2).
3. direct-acting type pressure switch according to claim 1 and 2, it is characterized in that, described upper casing (5) is provided with hole clipping (51), and described base (1) is provided with card ear (13), and described upper casing (5) is connected by described hole clipping (51) and described card ear (13) with described base (1).
4. direct-acting type pressure switch according to claim 1 and 2, it is characterized in that, at the upper holding part (52) also had for holding total pressure adjusting part (6) of described shell (5), described total pressure adjusting part (6) is located in described holding part (52).
5. direct-acting type pressure switch according to claim 4, it is characterized in that, described total pressure adjusting part (6) comprises uploads lever (61), total pressure regulating spring (62), spring compressor (63) and Spring lock catch (64), described lever (61), total pressure regulating spring (62), spring compressor (63) and the Spring lock catch (64) uploaded is located in described holding part (52) successively from bottom to up, and described Spring lock catch (64) is by the second card ear (641) and the hook groove clamping be located on described holding part (52) inwall.
6. direct-acting type pressure switch according to claim 5, is characterized in that, at the upper adjusting rod (65) also had for regulating total pressure regulating spring (62) pressure size of described Spring lock catch (64).
7. direct-acting type pressure switch according to claim 5, is characterized in that, described adjusting rod (65) is screw rod.
8. the direct-acting type pressure switch according to claim 1,2,5,6 or 7, is characterized in that, is connected to pipe line fast joint (7) respectively at the two ends of described main channel (11).
9. direct-acting type pressure switch according to claim 8, it is characterized in that, described pipe line fast joint (7) comprises and connects buckle (71) soon, connects claw (72) and O RunddichtringO (73) soon, and the described claw (72) that connects soon is connected with the port of described main channel (11) by connecing buckle (71) soon with O RunddichtringO (73).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420647499.0U CN204204743U (en) | 2014-11-03 | 2014-11-03 | Direct-acting type pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420647499.0U CN204204743U (en) | 2014-11-03 | 2014-11-03 | Direct-acting type pressure switch |
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| Publication Number | Publication Date |
|---|---|
| CN204204743U true CN204204743U (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420647499.0U Active CN204204743U (en) | 2014-11-03 | 2014-11-03 | Direct-acting type pressure switch |
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| CN (1) | CN204204743U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105712136A (en) * | 2016-03-16 | 2016-06-29 | 李培培 | Adjustable type gravity sensing switch of lifter |
| CN105938779A (en) * | 2016-06-27 | 2016-09-14 | 金华市宏昌电器有限公司 | High-voltage switch |
| CN106531548A (en) * | 2016-12-19 | 2017-03-22 | 杨嘉奇 | Pressure switch |
| CN107240528A (en) * | 2017-07-18 | 2017-10-10 | 上海侨亨实业有限公司 | Sensitivity is high, performance is stable and service life length pressure switch |
| CN109163109A (en) * | 2018-10-08 | 2019-01-08 | 李学谦 | Runoff investigation automatically cleaning valve |
-
2014
- 2014-11-03 CN CN201420647499.0U patent/CN204204743U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105712136A (en) * | 2016-03-16 | 2016-06-29 | 李培培 | Adjustable type gravity sensing switch of lifter |
| CN105938779A (en) * | 2016-06-27 | 2016-09-14 | 金华市宏昌电器有限公司 | High-voltage switch |
| CN105938779B (en) * | 2016-06-27 | 2019-05-28 | 金华市宏昌电器有限公司 | A kind of high-voltage switch gear |
| CN106531548A (en) * | 2016-12-19 | 2017-03-22 | 杨嘉奇 | Pressure switch |
| CN106531548B (en) * | 2016-12-19 | 2019-09-20 | 杨嘉奇 | Pressure switch |
| CN107240528A (en) * | 2017-07-18 | 2017-10-10 | 上海侨亨实业有限公司 | Sensitivity is high, performance is stable and service life length pressure switch |
| CN109163109A (en) * | 2018-10-08 | 2019-01-08 | 李学谦 | Runoff investigation automatically cleaning valve |
| CN109163109B (en) * | 2018-10-08 | 2023-11-03 | 李学谦 | Water quantity regulating self-cleaning valve |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |