CN207765371U - It is a kind of that there is the novel pressure signalling means for bearing superelevation overload for a long time - Google Patents
It is a kind of that there is the novel pressure signalling means for bearing superelevation overload for a long time Download PDFInfo
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- CN207765371U CN207765371U CN201820277088.5U CN201820277088U CN207765371U CN 207765371 U CN207765371 U CN 207765371U CN 201820277088 U CN201820277088 U CN 201820277088U CN 207765371 U CN207765371 U CN 207765371U
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Abstract
The utility model discloses a kind of novel pressure signalling means for having and bearing superelevation overload for a long time, including shell, diaphragm is provided in the shell, the movable contact component that is connect with diaphragm and the stationary contact component with movable contact component matching, it is provided with the alarm circuit being connect with external alert device on the movable contact component, further include the top plate being provided in shell with diaphragm face, the top plate and film chip processing go out the full ripple struction to match.Pressure value when being worked normally due to pressure signal device sets rated pressure value far above pressure signal device.To ensure pressure signal device normal work, the limit top plate with film contact in pressure signal device is designed to it is complete corrugated, when product diaphragm displacement amount reaches specified value, diaphragm and top plate contact, to play the role of position limitation protection to diaphragm.Solve the problems, such as that accuracy decline can not even use after bearing the novel pressure signalling means long-time service of superelevation overload for a long time.
Description
Technical field
The utility model is related to a kind of pressure signal devices, and in particular to a kind of to have the novel pressure for bearing superelevation overload for a long time
Force signal device.
Background technology
The main two types of pressure signal device are mechanical type and electron type respectively.
Mechanical type pressure signal device operation principle：When system pressure increases or decreases, elastic element is according to pressure value
Change and displacement generation respective change.When pressure is higher or lower than specified safe pressure in system pressure, elastic element
Deflection is switched on or switched off by guide rod pull switch connector, when specified recovery value is down to or is risen to system pressure, elasticity
Element instant reset, switch automatically reset, or are briefly the freedom of elastic element when by measuring pressure overrate
End generates displacement, and switch element is pushed directly or through after, changes the on off operating mode of switch element, reaches control by pressure measurement
The purpose of power.
The pressure signal device of the type is simple in structure, and precision is higher, but anti high overload ability is weak, switching elements ON with it is disconnected
It opens there are progressive error, when overload pressure is 15 times of rated pressure value or more, elastic element is easily plastically deformed, and product is specified
Alarm signal is drifted about, and cannot be met with the requirement under long-term high overload pressure condition.
Electron type pressure signal device operation principle：Pressure chip is equipped with inside pressure signal device, when pressure value changes
When, the resistance value or capacitance of pressure chip change, and amplify pressure signal by highly sophisticated device amplifier, through high speed
After MCU is acquired and is handled data, the output of control relay signal or disconnection.
The pressure signal device bound control point of the type can freely be set, and sluggishness is small, response is fast, precision is high, but phase
It to higher price, needs to power, anti high overload ability is weaker.When overload pressure is 20 times of rated pressure value or more, pressure core
Piece is easily plastically deformed, and the specified alarm signal of product is drifted about, and cannot be met under long-term high overload pressure condition
Requirement.
In recent years, with aircraft industry, gas turbine high speed development, for monitoring lubricating oil, fuel oil and aerodynamic system
Pressure changing and can bear for a long time 20 times or more overload pressures pressure signal device demand it is more and more stronger, therefore open
It is simple in structure to send out a kind of, dependable performance, it is cheap, with bear for a long time superelevation overload novel pressure signalling means could meet
The requirement of aircraft industry, gas turbine high speed development.
Utility model content
Technical problem to be solved in the utility model is to bear the novel pressure signalling means that superelevation is overloaded for a long time for a long time to make
It can not even be used with rear accuracy decline, and it is an object of the present invention to provide a kind of having the novel pressure signal for bearing superelevation overload for a long time
Device solves the problems, such as the novel pressure signalling means for bearing superelevation overload for a long time.
The utility model is achieved through the following technical solutions：
It is a kind of that there is the novel pressure signalling means for bearing superelevation overload for a long time, including shell and the sensing that is arranged in shell
Component, which is characterized in that be provided with the diaphragm being connect with balancing gate pit in the shell, further include being provided in shell and film
The annular roof plate of piece face, the top plate are arranged on the direction moved when diaphragm is pressurized, the center of top plate and the geometry of diaphragm
Center overlaps, and top plate and film chip processing go out the full ripple struction to match.Pressure when being worked normally due to pressure signal device
Value sets rated pressure value far above pressure signal device.For ensure pressure signal device normal work, by pressure signal device with film
The limit top plate of piece contact be designed to it is complete corrugated, when product diaphragm displacement amount reaches specified value, diaphragm and top plate contact, from
And play the role of position limitation protection to diaphragm.
The sensory package includes the movable contact component being connect with diaphragm and the stationary contact component with movable contact component matching,
The line of the movable contact of the movable contact component and the stationary contact of stationary contact component is parallel to the direction moved when diaphragm is pressurized.Institute
Connection is stated on the movable contact of movable contact component there are one the one end in the straight portion of U-shaped mandril, the other end in the U-shaped straight portion of mandril with
The geometric center spot welding of diaphragm connects, and the patchboard being connect with movable contact is additionally provided on the U-shaped mandril.The stationary contact group
Part includes stationary contact seat board and is connected to the stationary contact on stationary contact seat board by spring leaf.Pressure signal device uses stationary contact group
Part structure, stationary contact component are mainly made of parts such as stationary contact, spring leaf, stationary contact seat boards.Wherein spring sheet material is height
Elastic alloy, elastic property is good, is not susceptible to be plastically deformed.When reaching rated pressure value, stationary contact contacts defeated with movable contact
Go out alarm signal, while flexible deformation occurs for spring leaf.When pressure decreases, spring leaf restores deformation, to which production be effectively ensured
Product stability.
Pressure signal device movable contact component is mainly made of parts such as lug plate, U-shaped mandril, movable contacts.Pressure signal device
Movable contact component is connect with diaphragm spot welding, forms an entirety, when diaphragm, which experiences pressure value, to be increased, center axial displacement
Amount increase, movable contact component also constantly responds diaphragm displacement, when displacement reaches specified value, in movable contact component movable contact with
Stationary contact point contact in stationary contact component, circuit conducting, output alarm signal；When diaphragm, which experiences pressure value, to be reduced, in diaphragm
Heart axial displacement reduces, and movable contact disengages immediately with the stationary contact in stationary contact component in movable contact component, releases alarm signal.
The top plate is connected to by the matching of screw and insulating bushing on shell.Between the screw and insulating bushing also
It is provided with compress gasket and insulation spacer.Using the above structure, spacing of the adjusting screw between top plate and diaphragm can be passed through
It is adjusted, to adapt to different working environments.
The contact of the movable contact component and stationary contact component is all made of yellow gold.Due to movable contact and stationary contact material
It is yellow gold, ensures that electrical output signal is stablized, avoid false alarm.
Spacing between the top plate and diaphragm is not more than 0.4mm.To ensure that pressure signal device bears high overload energy for a long time
Power, protection diaphragm move in elastic range, avoid damaging diaphragm because moving displacement is big, need to accurately control diaphragm displacement amount.
As diaphragm displacement amount≤0.4mm, diaphragm is in contact with corrugated top plate, and energy effective protection diaphragm avoids being plastically deformed.
The utility model compared with prior art, has the following advantages and advantages：
1, the utility model is a kind of having the novel pressure signalling means for bearing superelevation overload for a long time, controls diaphragm displacement amount,
Top plate is used, for complete corrugated structure, to ensure pressure signal device for a long time in the normal work of superelevation overload pressure with film contact
Make, avoids diaphragm from being plastically deformed, alarm pressure value drift improves the safety and reliability of pressure signal device；
2, the utility model is a kind of having the novel pressure signalling means for bearing superelevation overload for a long time, using stationary contact component knot
Structure, when reaching rated pressure value, stationary contact contacts output alarm signal with movable contact, and flexible deformation occurs for spring leaf.Work as pressure
When power reduces, spring leaf restores deformation, to which product stability be effectively ensured；
3, the utility model is a kind of having the novel pressure signalling means for bearing superelevation overload for a long time, using movable contact component knot
Structure, when movable contact in movable contact component and the stationary contact point contact in stationary contact component, circuit conducting, output alarm signal, when dynamic
Movable contact disengages immediately with the stationary contact in stationary contact component in contact assembly, releases alarm signal, ensures that electricity output is stablized, energy
Effectively avoid false alarm.
Description of the drawings
Attached drawing described herein is used for providing further understanding the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings：
Fig. 1 is the utility model pressure signal device principle schematic diagram；
Fig. 2 is diaphragm and complete corrugated top board structure schematic diagram.
Label and corresponding parts title in attached drawing：
1- sockets, 2- cover boards, 3- shells, 4- screws, 5- compress gaskets, 6- insulation spacers, 7- insulating bushings, 8- nuts,
9- saddle shaped washers, 10- diaphragms, 11- sealing rings, 12- top plates, 13- movable contact components, 14- stationary contact components, 15- clamp nuts.
Specific implementation mode
To make the purpose of this utility model, technical solution and advantage be more clearly understood, with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment 1
As shown in Figure 1, 2, the utility model is a kind of having the novel pressure signalling means for bearing superelevation overload for a long time, including shell
Body 3 is provided with diaphragm 10 in the shell 3, the movable contact component 13 that is connect with diaphragm 10 and is matched with movable contact component 13
Stationary contact component 14, the line of the movable contact of the movable contact component 13 and the stationary contact of stationary contact component 14 is parallel to diaphragm
10 axis is provided with the alarm circuit being connect with external alert device on the movable contact component 13, further includes in shell
It is provided with the top plate 12 with 10 face of diaphragm, the top plate 12 is arranged on the direction moved when diaphragm 10 is pressurized, 12 He of top plate
The full ripple struction to match is handled out on diaphragm 10.Pressure value when being worked normally due to pressure signal device is believed far above pressure
Number device sets rated pressure value.To ensure pressure signal device normal work, the limit that will be contacted with diaphragm 10 in pressure signal device
Top plate 12 is designed to complete corrugated, and when 10 displacement of product diaphragm reaches specified value, diaphragm 10 is contacted with top plate 12, thus right
Diaphragm 12 plays the role of position limitation protection.
Spacing between the top plate 12 and diaphragm 10 is 0.35mm.To ensure that pressure signal device bears high overload energy for a long time
Power, protection diaphragm 10 move in elastic range, avoid damaging diaphragm 10 because moving displacement is big, need to accurately control 10, diaphragm
Shifting amount.As 10 displacements of diaphragm≤0.4mm, diaphragm 10 is in contact with corrugated top plate 12, and energy effective protection diaphragm 10 avoids
It is plastically deformed.
The stationary contact component 14 includes stationary contact seat board and is connected to the stationary contact on stationary contact seat board by spring leaf.
Pressure signal device uses 14 structure of stationary contact component, and stationary contact component 14 is mainly by stationary contact, spring leaf, stationary contact seat board etc. zero
Part forms.Wherein spring sheet material is high elastic modulus alloy, and elastic property is good, is not susceptible to be plastically deformed.When reaching rated pressure
When value, stationary contact contacts output alarm signal with movable contact, while flexible deformation occurs for spring leaf.When pressure decreases, spring
Piece restores deformation, to which product stability be effectively ensured.
The movable contact component 13 includes a U-shaped mandril, and one end of the U-shaped mandril is connect with 10 spot welding of diaphragm, separately
One end is provided with movable contact, and the patchboard being connect with movable contact is additionally provided on the U-shaped mandril.Pressure signal device movable contact group
Part 13 is mainly made of parts such as lug plate, U-shaped mandril, movable contacts.Pressure signal device movable contact component 13 and 10 spot welding of diaphragm
Connection forms an entirety, and when diaphragm 10, which experiences pressure value, to be increased, 10 central axial displacement of diaphragm increases, movable contact group
Part 13 also constantly responds 10 displacement of diaphragm, when displacement reaches specified value, movable contact and stationary contact group in movable contact component 13
Stationary contact point contact in part 14, circuit conducting, output alarm signal；When diaphragm 10, which experiences pressure value, to be reduced, 10 center of diaphragm
Axial displacement reduces, and movable contact disengages immediately with the stationary contact in stationary contact component 14 in movable contact component 13, releases alarm signal
Number.
The top plate 12 is connected to by the matching of screw 4 and insulating bushing 7 on shell 3.The screw 4 and insulating bushing
Compress gasket 5 and insulation spacer 6 are additionally provided between 7.It using the above structure, can be by adjusting screw 4 to top plate 12 and film
Spacing between piece 10 is adjusted, to adapt to different working environments.
The contact of the movable contact component 13 and stationary contact component 14 is all made of yellow gold.Due to movable contact and stationary contact
Material is yellow gold, ensures that electrical output signal is stablized, avoids false alarm.
Embodiment 2
The present embodiment is the course of work of the present apparatus, and the present apparatus first passes through nut 8 and saddle shaped washer 9 is connected to pressure source
On, it is connect with warning device by socket 1 and cover board 2, pressure source enters pressure by 3 front end oil inlet of pressure signal device shell
Signalling means seal-off pressure experiences intracavitary, and diaphragm 10 is experienced after the variation of pressure value therewith in 10 central axial generation displacement shape of diaphragm
Become, to push movable contact component 13 to move.When pressure value reaches specified value, the movable contact in movable contact component 13 and stationary contact
Stationary contact is in contact in point component 14, and circuit is made to be connected, to external output alarm signal, when pressure value continues to rise, film
When 10 central axial displacement of piece reaches restriction displacement, diaphragm 10 is completely attached to complete corrugated top plate 12, again unlifting pressure, film
Piece 10 is protected by ripple top plate 12, and diaphragm 10 is avoided to be plastically deformed, and flexible deformation occurs for spring leaf in stationary contact component 14；Work as pressure
When force value reduces, 10 central axial displacement of diaphragm is reduced, and spring leaf gradually restores deformation in stationary contact component 14, when pressure is less than
When rated pressure value, the movable contact in movable contact component 13 disengages immediately with stationary contact in stationary contact component 14, releases alarm signal
Number.
Above-described specific implementation mode, to the purpose of this utility model, technical solution and advantageous effect carried out into
One step is described in detail, it should be understood that the foregoing is merely specific embodiment of the present utility model, is not used to limit
Determine the scope of protection of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (8)
1. a kind of having the novel pressure signalling means for bearing superelevation overload for a long time, including shell (3) and setting are in shell (3)
Sensory package, which is characterized in that be provided with the diaphragm (10) being connect with balancing gate pit in the shell (3), further include in shell
It is inside provided with and the side moved when diaphragm (10) are pressurized is set with the annular roof plate (12) of diaphragm (10) face, the top plate (12)
Upwards, the center of top plate (12) is overlapped with the geometric center of diaphragm (10), is handled out and is matched on top plate (12) and diaphragm (10)
Full ripple struction.
2. according to claim 1 a kind of with the novel pressure signalling means for bearing superelevation overload for a long time, which is characterized in that
The sensory package include the movable contact component (13) being connect with diaphragm (10) and with movable contact component (13) matched stationary contact
The line of component (14), the movable contact of the movable contact component (13) and the stationary contact of stationary contact component (14) is parallel to diaphragm
(10) direction moved when being pressurized.
3. according to claim 2 a kind of with the novel pressure signalling means for bearing superelevation overload for a long time, which is characterized in that
On the movable contact of the movable contact component (13) connection there are one U-shaped mandril straight portion one end, the U-shaped straight portion of mandril it is another
One end is connect with the geometric center spot welding of diaphragm (10), and the patchboard being connect with movable contact is additionally provided on the U-shaped mandril.
4. according to claim 3 a kind of with the novel pressure signalling means for bearing superelevation overload for a long time, which is characterized in that
The stationary contact component (14) further includes the stationary contact seat board being connected to by spring leaf on stationary contact.
5. according to claim 2 a kind of with the novel pressure signalling means for bearing superelevation overload for a long time, which is characterized in that
The contact of the movable contact component (13) and stationary contact component (14) is all made of yellow gold.
6. according to claim 1 a kind of with the novel pressure signalling means for bearing superelevation overload for a long time, which is characterized in that
The top plate (12) is connected to by the matching of screw (4) and insulating bushing (7) on shell (3).
7. according to claim 6 a kind of with the novel pressure signalling means for bearing superelevation overload for a long time, which is characterized in that
It is additionally provided with compress gasket (5) and insulation spacer (6) between the screw (4) and insulating bushing (7).
8. according to claim 1 a kind of with the novel pressure signalling means for bearing superelevation overload for a long time, which is characterized in that
Spacing between the top plate (12) and diaphragm (10) is not more than 0.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820277088.5U CN207765371U (en) | 2018-02-27 | 2018-02-27 | It is a kind of that there is the novel pressure signalling means for bearing superelevation overload for a long time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820277088.5U CN207765371U (en) | 2018-02-27 | 2018-02-27 | It is a kind of that there is the novel pressure signalling means for bearing superelevation overload for a long time |
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| Publication Number | Publication Date |
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| CN207765371U true CN207765371U (en) | 2018-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820277088.5U Active CN207765371U (en) | 2018-02-27 | 2018-02-27 | It is a kind of that there is the novel pressure signalling means for bearing superelevation overload for a long time |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108305814A (en) * | 2018-02-27 | 2018-07-20 | 四川新川航空仪器有限责任公司 | It is a kind of that there is the novel pressure signalling means for bearing superelevation overload for a long time |
-
2018
- 2018-02-27 CN CN201820277088.5U patent/CN207765371U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108305814A (en) * | 2018-02-27 | 2018-07-20 | 四川新川航空仪器有限责任公司 | It is a kind of that there is the novel pressure signalling means for bearing superelevation overload for a long time |
| CN108305814B (en) * | 2018-02-27 | 2024-04-16 | 四川新川航空仪器有限责任公司 | Pressure signal device capable of bearing ultrahigh overload for long time |
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