CN107863269A - A kind of microminiature gas density relay - Google Patents
A kind of microminiature gas density relay Download PDFInfo
- Publication number
- CN107863269A CN107863269A CN201711223510.5A CN201711223510A CN107863269A CN 107863269 A CN107863269 A CN 107863269A CN 201711223510 A CN201711223510 A CN 201711223510A CN 107863269 A CN107863269 A CN 107863269A
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- microswitch
- valve
- resetting
- movement arm
- self
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
- H01H35/28—Compensation for variation of ambient pressure or temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/32—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by bellows
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Measuring Fluid Pressure (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention discloses a kind of microminiature gas density relay, including：The signaling gear and indicating value indication mechanism to link together；The bellows of gas density and the microswitch as contact in detection sulfur hexafluoride electrical equipment are provided with signaling gear；Indicating value indication mechanism includes：Show Baden pipe, displays temperature compensating element, display end seat, movement, dial, pointer and display base；Show that one end of Baden pipe and one end of displays temperature compensating element, are both secured to display end seat, the other end of display Baden pipe is connected on display base, the other end of displays temperature compensating element, passes sequentially through display linking arm and display connecting rod is connected with movement or the other end of displays temperature compensating element, is directly connected with movement, and pointer is installed on movement and before dial.Microminiature sulfur hexafluoride gas density relay provided by the invention, it can show, resistance to shock is good with gamut scope, precision is high, is particularly very easy to realize, is very easy to popularization and application.
Description
Technical field
The present invention relates to technical field of electric power, and in particular to a kind of microminiature sulfur hexafluoride gas density relay.
Background technology
At present, for monitor the sulfur hexafluoride gas density of the sulfur hexafluoride gas density in sulfur hexafluoride electrical equipment after
The load cell that the signaling gear (signal control portion) of electrical equipment typically uses is bellows, the contact used for microswitch,
The indicating value indication mechanism of the sulfur hexafluoride gas density relay is typically also using the bellows in signaling gear as pressure measurement member
Part, signaling gear reflect the electric signal of sulfur hexafluoride gas density by bellows and the output of microswitch collective effect, simultaneously
It is lithium that indicating value indication mechanism by bellows because of pressure and the mechanical deformation that occurs and by movement controls pointer to indicate in itself
Sulphur gas density indicating value.But for this sulfur hexafluoride gas density relay, its indicating value indication mechanism based on bellows,
Range indication range is small, it is difficult to realizes that gamut scope is shown, can not particularly realize the display for being initiated with -0.1MPa, takes out true
Space-time cannot show vacuum, be not easy very much popularization and application, and volume is big, be not easy to use on middle pressure cabinet, so compeling to be essential
Innovate.It is necessary to have the maintaining body after signalizing activity and resetting-mechanism for other many middle voltage electrical equipment, it is possible to achieve electricity
Gas equipment arcing overpressure alarm keeps function., being capable of overpressure alarm during its hypertonia when electrical equipment arcing.And when electricity
After gas equipment arcing terminates, and its alarm signal is always maintained at, and is easy to conveniently allow operations staff to find, ensures that power ampere is for the national games
OK, it is also desirable to innovate.And a kind of microminiature sulfur hexafluoride gas density relay of absolute pressure type is needed, it is suitably applied in
Middle voltage electrical field, it is also desirable to innovate.
The content of the invention
The present invention provide a microminiature gas density relay, for solve the sulfur hexafluoride gas density of prior art after
The range indication range of electrical equipment is small, it is difficult to the problem of realizing gamut scope display.And there is maintaining body and resetting-mechanism,
It can realize that electrical equipment arcing overpressure alarm keeps function., being capable of superpressure report during its hypertonia after electrical equipment arcing
It is alert.And its pressure it is normal when, its alarm signal is always maintained at, and is easy to allow operations staff to find, ensure electric power safety operation.
A kind of microminiature gas density relay, including：Housing, joint and the signaling gear to link together and show
It is worth indication mechanism；
The bellows of gas density and the microswitch as contact in detection electrical equipment are provided with the signaling gear；
The indicating value indication mechanism includes：Show Baden pipe, display end seat, movement, dial, pointer, display base and
Show observation window；One end of the display Baden pipe is sealedly attached to the display end seat, the other end of the display Baden pipe
It is connected on the display base, the pointer is installed on the movement,
Described signaling gear includes chassis, bellows, support, push rod, fixed mount, some microswitches, some regulations
Part, regulating part fixed plate, housing, wire outlet seat, one end sealing welding of bellows is on chassis, the other end sealing weldering of bellows
It is connected on support, fixed mount is fixed in chassis or housing, and push rod is fixed on support, and microswitch is fixed on fixed mount or bottom
On disk, regulating part fixed plate is fixed on push rod, and some regulating parts are fixed in regulating part fixed plate, and wire outlet seat sealing is fixed on
On housing or chassis, one end sealing welding of housing forms sealed air chamber on chassis, and sealed air chamber's interior sealing has compensation gas
Body, the compensation gas play temperature compensation function to signaling gear, and display observation window is fixed on chassis, and indicating value indication mechanism is aobvious
Show in observation window, joint is fixed on housing, and display end seat is fixed on chassis, and chassis is provided with air admission hole, and air admission hole passes through
Connector is interconnected with joint in gas circuit, and in gas circuit, display Baden pipe, bellows are by air admission hole, connector with connecing
Head is interconnected.
Also include push rod guide, push rod is passed through from push rod guide, and push rod guide is fixed on fixed mount.
Microswitch is arranged on the front and rear of regulating part fixed plate；
Or microswitch is arranged on the rear portion of regulating part fixed plate.
Also include maintaining body or maintaining body and resetting-mechanism after signalizing activity；
Described maintaining body is correspondingly arranged with the signal contact for needing signal to keep, and after the signalizing activity, no matter is pressed
Power or density reduce or increase, maintaining body can keep signalizing activity state, just can only can answer signal by resetting-mechanism
Position；By operating resetting-mechanism, resetting-mechanism is set to promote movement arm of the maintaining body away from microswitch, the action of microswitch
Arm recovers normal condition, resets signal.
Described maintaining body is elastic component, and when reaching the pressure or density of setting, regulating part promotes microswitch
Movement arm moves, and the movement arm of microswitch is crossed elastic component；I.e. after the signalizing activity, no matter pressure or density reduce or
Increase, elastic component can keep the movement arm of microswitch to be in signalizing activity state；
After the signalizing activity, no matter pressure or density reduce or increase, elastic component can keep the action of microswitch
Arm is in signalizing activity state, can just reset signal by resetting-mechanism.
Described maintaining body includes spring and holding element, and when reaching the pressure or density of setting, regulating part promotes
The movement arm motion of microswitch, make movement arm stretching or the compression spring of microswitch, cross the movement arm of microswitch
Holding element, holding element block the movement arm of microswitch, i.e., after the signalizing activity, no matter pressure or density are reduced or increased
Add, holding element can keep the movement arm of microswitch to be in signalizing activity state.
The resetting-mechanism is a rod member composition with lever, by rotation process handle, the rod member of spinning reduction mechanism,
The rod member of resetting-mechanism is set to promote movement arm of the maintaining body away from microswitch, the movement arm of microswitch recovers normal shape
State, reset signal；
The resetting-mechanism is pressed or extracted resetting-mechanism horizontally or vertically to move, resetting-mechanism is promoted holding machine
Movement arm of the structure away from microswitch, the movement arm of microswitch recover normal condition, reset signal；
Or, the resetting-mechanism is rotary motion, spinning reduction mechanism, resetting-mechanism is promoted maintaining body away from fine motion
The movement arm of switch, the movement arm of microswitch recover normal condition, reset signal.
The resetting-mechanism is an element composition with lever, by pressing or extracting lever, promotes resetting-mechanism
Element, the element of resetting-mechanism is promoted movement arm of the maintaining body away from microswitch, the movement arm of microswitch recovers
Normal condition, reset signal；
The resetting-mechanism moves for vertical curve, presses or extract resetting-mechanism, resetting-mechanism is promoted maintaining body
Movement arm away from microswitch, the movement arm of microswitch recover normal condition, reset signal；
Or, the resetting-mechanism is an element composition with lever, by pressing or extracting lever, promotes reset machine
The element of structure, the element of resetting-mechanism is set to promote movement arm of the maintaining body away from microswitch, the movement arm of microswitch is extensive
Multiple normal condition, resets signal；
Or, the resetting-mechanism also includes reduction apparatus, after operating resetting-mechanism, reduction apparatus can make resetting-mechanism extensive
Shape is restored, the reduction apparatus is flexible member, and after operation resetting-mechanism terminates, the elastic force of the flexible member of reduction apparatus can
Resetting-mechanism is set to restore to the original state.
The reduction apparatus contains spring, after operation resetting-mechanism terminates, the elastic force or pulling force energy of the spring of reduction apparatus
Enough resetting-mechanism is set to restore to the original state.
Also include not dismantling calibration equipment, described calibration equipment of not dismantling is fixed on chassis or on housing or joint
On, the air admission hole, connector and joint for not dismantling calibration equipment and chassis is interconnected in gas circuit, and described does not dismantle
Calibration equipment by valve, verification mouth form, can not have to dismounting, by closing valve, make density monitor in gas circuit with electricity
The air chamber shut-off of gas device interior, the verification of density monitor is completed by verifying mouth,
Or, the described valve for not dismantling calibration equipment and verification mouth link together, and can not have to dismounting, when verification connects
Head with verification mouth be connected with each other when, just close valve automatically, make density monitor in gas circuit with inside electric appliance
Air chamber turns off, and completes the verification of density monitor；
It is automatic during by verifying transit joint connection verification mouth or, described calibration equipment of not dismantling can not have to dismounting
Valve is closed, air chamber of the density monitor with inside electric appliance in gas circuit is turned off, completes the verification of density monitor；
Or, the described valve for not dismantling calibration equipment can not have to dismounting to block class valve, by closing valve,
Air chamber of the density monitor with inside electric appliance in gas circuit is turned off, the verification of density monitor is completed by verifying mouth；
Or, the described valve for not dismantling calibration equipment is stop valve, the stop valve and verification mouth link together, can be with
Without dismounting, when checking joint with verification mouth be connected with each other when, just close stop valve, make density monitor in gas circuit with
The air chamber shut-off of inside electric appliance, completes the verification of density monitor, described verification mouth is Self-sealing valve, complete by verifying mouth
Into the verification of density monitor；
Or, described checking joint of not dismantling includes valve, verification mouth, valve seat, self-sealing valve device and closeouts；It is described
Valve seat is provided with relay airway and switch gear airway, and the self-sealing valve device is provided with Self-sealing valve airway, it is described after
Electrical equipment airway, the switch gear airway are connected with the Self-sealing valve airway；The valve seat be installed on it is described from
Seal valve gear self-sealing valve pocket side, the closeouts be removably installed in the opposite side of the self-sealing valve pocket and it is described from
The opposite side of envelope valve pocket is provided with the second interface being engaged with inflation transit joint or verification transit joint；The self-sealing valve pocket
Inner chamber, which is provided with, can be axially moveable to open or close the self-styled valve element of the Self-sealing valve airway, the self-sealing valve pocket with
The side of the valve seat connection is provided with valve element guide, and the first bullet is provided between the valve element guide and the self-styled valve element
Spring, the self-styled valve element be provided with the stop valve that is oppositely arranged with the switch gear airway or with the switch gear airway
The ball valve that is engaged of oral area；
Or, described calibration equipment of not dismantling also includes closeouts, the closeouts are removably installed in described self-styled
The opposite side of valve pocket and the opposite side of the self-sealing valve pocket are provided with the be engaged with inflation transit joint or verification transit joint
Two interfaces；
Or, described calibration equipment of not dismantling mainly is made up of valve seat and self-sealing valve device；The valve seat be provided with after
Electrical equipment airway and switch gear airway, the self-sealing valve device are provided with Self-sealing valve airway, the relay monitoring ventilation
Road, the switch gear airway are connected with the Self-sealing valve airway；The valve seat is installed on the self-sealing valve device
Self-sealing valve pocket side；The inner chamber of the self-sealing valve pocket is provided with and can be axially moveable to open or close the Self-sealing valve
The self-styled valve element of airway, the side that the self-sealing valve pocket is connected with the valve seat are provided with valve element guide, and the valve element is led
To the first spring is provided between part and the self-styled valve element, the self-styled valve element is provided with set relative with the switch gear airway
The stop valve put or the ball valve being engaged with the oral area of the switch gear airway.
Indication mechanism also includes displays temperature compensating element, and the displays temperature compensating element, is the benefit filled with compensation gas
Repay device；Preferably, the displays temperature compensating element, is bimetal leaf, the sealed air chamber of the bimetal leaf and indication mechanism
Interior compensation gas plays temperature compensation function to indicating value indication mechanism jointly.
The compensating device filled with compensation gas compensates Baden pipe for the display filled with compensation gas, or filled with compensation gas
The compensating device of body compensates bellows for the display filled with compensation gas, in addition to temperature-sensitive bag, the compensation gas pass through connection
Tracheae is connected with temperature-sensitive bag.
Also include：Spring, spring are nested on push rod, and one end of spring leans against support, and the other end of spring leans against push rod
On guide, the wire outlet seat is provided with anti-vibration part, and wire outlet seat is fixed on anti-vibration part, and anti-vibration part is fixed on chassis or housing；
Preferably, the anti-vibration part is bellows or is made up of the thin plate of anti-vibration function.
The connecting line of wire outlet seat is connected with microswitch, and the connecting line of wire outlet seat is connected to the junction block or electricity outside housing
On cable.
The indicating value indication mechanism is hermetically sealed in display observation window, indicating value is shown as absolute pressure, not by height above sea level
Degree influences, and the display observation window front is transparent glass, and the display observation window is fixed by sealing ring and chassis sealing
Link together.
Also include：Gas tube on chassis or housing, corresponding compensation gas can be filled with by gas tube.
Also include air inlet, air inlet is arranged on chassis or housing, and the joint is connected by tracheae with air inlet
Or directly it is connected with air inlet；Preferably, in addition to air inlet, air inlet are arranged on chassis, the joint and air inlet
It is connected, filled with compensation gas in the sealed air chamber, the display base is by connecting tube or is directly anchored on chassis, should
Display base is connected with joint in gas circuit.
Described microswitch also includes movement arm, and after the signalizing activity, maintaining body maintains movement arm, no matter presses
Power or density reduce or increase, maintaining body can keep signalizing activity state, just can only can answer signal by resetting-mechanism
Position, described movement arm is elastic component, and when reaching the pressure or density of setting, regulating part promotes the movement arm fortune of microswitch
It is dynamic, the movement arm of microswitch is crossed maintaining body, the movement arm of microswitch is in signalizing activity state.
Resetting-mechanism is sealing with housing, and when operating resetting-mechanism, the sealed air chamber in housing is all the time in sealing
State, the resetting-mechanism realize sealing by sealing ring and housing.
Described maintaining body is magnetic element.When reaching the pressure or density of setting, regulating part promotes microswitch
Movement arm motion, the movement arm of microswitch is close to magnetic element.I.e. after the signalizing activity, no matter pressure or density drop
Low or increase, magnetic element can keep the movement arm of microswitch to be in signalizing activity state；Or, described maintaining body contains
Be magnetic element.When reaching the pressure or density of setting, regulating part promotes the movement arm motion of microswitch, makes microswitch
Movement arm cross maintaining body, movement arm proximate magnetic element, i.e., after the signalizing activity, no matter pressure or density reduce or
Increase, the magnetic element of maintaining body can more keep the movement arm of microswitch to be in signalizing activity state.
Described calibration equipment of not dismantling mutually is merged with connector.
Microminiature sulfur hexafluoride gas density relay provided by the invention, the pressure measurement of indicating value indication mechanism (display portion)
Element uses Baden pipe, uses bellows different from the load cell of display portion in the prior art, overcomes bellows displacement
It is small, be difficult to gamut display problem, can easily realize that the gamut scope of gas density relay is shown, it is special
It is not to be very easy to realize the display for being initiated with -0.1MPa, can shows vacuum when vacuumizing, and being very easy to popularization should
With.And simultaneously, load cell is bellows used by its signaling gear (signal control portion), to ensure density monitor
High resistance to shock, and the contact used is microswitch, to ensure the reliable electric property of density monitor.Particularly, lead to
Very big innovation has been crossed, there is maintaining body and resetting-mechanism, it is possible to achieve electrical equipment arcing overpressure alarm keeps function.I.e.
, being capable of overpressure alarm during its hypertonia after electrical equipment arcing.And its pressure it is normal when, its alarm signal is always maintained at,
Operations staff can be allowed to find electrical equipment arcing phenomenon, the electrical equipment of timely processing arcing phenomenon, ensure that power ampere is for the national games
OK.Gas density relay with gas pressure (or gas density) maintaining body and resetting-mechanism, can be very good to ensure
Power grid security.Particularly, very big innovation has been passed through, there is maintaining body and resetting-mechanism, it is possible to achieve electrical equipment arcing
Overpressure alarm keeps function., being capable of overpressure alarm during its hypertonia i.e. when electrical equipment arcing.And when electrical equipment fires
After arc terminates, when its pressure is normal, its alarm signal is always maintained at, and operations staff can be allowed to find electrical equipment arcing phenomenon,
The electrical equipment of timely processing arcing phenomenon, ensure electric power safety operation.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the present invention, for this
For the those of ordinary skill of field, without having to pay creative labor, other can also be obtained according to these accompanying drawings
Accompanying drawing；
Fig. 1 is a kind of partial cutaway schematic of microminiature sulfur hexafluoride gas density relay of the embodiment of the present invention；
Fig. 2 is the not operating state description of signal of the microminiature sulfur hexafluoride gas density relay of the embodiment of the present invention
Figure；
Fig. 3 is that the signalizing activity hold mode principle of microminiature sulfur hexafluoride gas density relay of the embodiment of the present invention is said
Bright figure；
Fig. 4 is that the signalizing activity reseting procedure principle of microminiature sulfur hexafluoride gas density relay of the embodiment of the present invention is said
Bright figure；
Fig. 5 is that the signalizing activity of the microminiature sulfur hexafluoride gas density relay of another embodiment of the present invention resetted
Journey principle explanatory diagram.
Embodiment：
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 is the partial cutaway schematic of the microminiature sulfur hexafluoride gas density relay of the embodiment of the present invention one, such as
Shown in Fig. 1, the embodiment of the present invention one discloses a kind of microminiature gas density relay, including：Housing 18, joint 3, Yi Jilian
The signaling gear and indicating value indication mechanism being connected together；
The bellows 1 of gas density and the microswitch as contact in detection electrical equipment are provided with the signaling gear
16；
The indicating value indication mechanism includes：Show Baden pipe 4, display end seat 5, movement 32, dial 31, pointer 33, aobvious
Show pedestal 7 and display observation window 30；One end of the display Baden pipe 4 is sealedly attached to the display end seat 5, the display bar
The other end for stepping on pipe 4 is connected on the display base 7, and the pointer 33 is installed on the movement 32.
Described signaling gear includes chassis 11, bellows 1, support 37, push rod 13, fixed mount 17, some microswitches
16th, some regulating parts 38, regulating part fixed plate 9, housing 18, wire outlet seat 39, one end sealing welding of bellows 1 is on chassis 11
On, on support 37, fixed mount 17 is fixed in chassis 11 or housing 18 other end sealing welding of bellows 1, and push rod 13 is solid
It is scheduled on support 37.Microswitch 16 is fixed on fixed mount 17 or chassis 11, and regulating part fixed plate 9 is fixed on push rod 13,
Some regulating parts 38 are fixed in regulating part fixed plate 9, and the sealing of wire outlet seat 39 is fixed on housing 18 or chassis 11.Housing 18
One end sealing welding forms sealed air chamber G on chassis 11.Characterized in that, sealed air chamber's G interior sealings have compensation gas, should
Compensation gas plays temperature compensation function to signaling gear.Display observation window 30 is fixed on chassis 11, and indicating value indication mechanism is aobvious
Show in observation window 30.Joint 3 is fixed on housing 18.Display end seat 5 is fixed on chassis 11, and chassis 11 is provided with air admission hole A,
Air admission hole A is interconnected by connector B and joint 3 in gas circuit.In gas circuit, display Baden pipe 4, bellows 1 are by entering
Stomata A, connector B and joint 3 are interconnected.
The joint 3 is fixed on housing 18, and the indicating value indication mechanism is in display observation window 30.Spring 12 is sheathed on
On the push rod 13, and one end of the spring 12 abuts with the support 37, and the other end abuts with the push rod guide 39.
Push rod 13 is passed through from push rod guide 39, and push rod guide 39 is fixed on fixed mount 17
Microswitch 16 is arranged on the front and rear of regulating part fixed plate 9.
Referring to Fig. 2, Fig. 3 and Fig. 4, product of the embodiment of the present invention also includes the maintaining body 14 and reset machine after signalizing activity
Structure 40.Described maintaining body 14 with need signal keep signal contact be correspondingly arranged, after the signalizing activity, no matter pressure
Or density reduces or increase, maintaining body 14 can keep signalizing activity state, can only can just make signal by resetting-mechanism 40
Reset.Described maintaining body 14 is elastic component.When reaching the pressure or density of setting, regulating part 38 promotes microswitch 16
Movement arm 15 move, the movement arm 15 of microswitch 16 is crossed elastic component 14.I.e. after the signalizing activity, no matter pressure or
Density reduces or increase, elastic component 14 can keep the movement arm 15 of microswitch 16 to be in signalizing activity state.
Fig. 2 and Fig. 3 specifically is combined, described maintaining body is elastic component 14.When reaching the pressure or density of setting, adjust
Section part 38 promotes the movement arm 15 of microswitch 16 to move, and the movement arm 15 of microswitch is crossed elastic component 14, such as Fig. 3 institutes
Show.I.e. after the signalizing activity, no matter pressure or density reduce or increase, elastic component 14 can keep the movement arm of microswitch
15 are in signalizing activity state.Certainly described maintaining body mainly includes spring and holding element.When the pressure for reaching setting
Or during density, regulating part promotes the movement arm motion of microswitch, make movement arm stretching or the compression spring of microswitch, make micro-
The movement arm of dynamic switch crosses holding element, and holding element blocks the movement arm of microswitch.I.e. after the signalizing activity, no matter
Pressure or density reduce or increase, holding element can keep the movement arm of microswitch to be in signalizing activity state.When the letter
After number action, no matter pressure or density reduce or increase, elastic component can keep the movement arm of microswitch to be in signalizing activity
State, just it can only can reset signal by resetting-mechanism 40.Referring to Fig. 4, as shown in broken lines, by operating reset machine
Structure 40, makes resetting-mechanism 40 promote movement arm 15 of the maintaining body 14 away from microswitch, and the movement arm 15 of microswitch recovers
Normal condition, reset signal.The resetting-mechanism is rotary motion, spinning reduction mechanism, resetting-mechanism is promoted holding machine
Movement arm of the structure away from microswitch, the movement arm of microswitch recover normal condition, reset signal.The resetting-mechanism is
The one rod member composition with lever, by rotation process handle, the rod member 40 of spinning reduction mechanism, promotes the rod member of resetting-mechanism
Movement arm of the maintaining body away from microswitch, the movement arm of microswitch recover normal condition, reset signal.The reset
Mechanism presses or extracted resetting-mechanism horizontally or vertically to move, resetting-mechanism is promoted maintaining body away from microswitch
Movement arm, the movement arm of microswitch recover normal condition, reset signal.The resetting-mechanism is an element with lever
Composition, by pressing or extracting lever, promotes the element of resetting-mechanism, makes the element of resetting-mechanism promote maintaining body remote
The movement arm of microswitch, the movement arm of microswitch recover normal condition, reset signal.
Referring to shown in Fig. 3 and Fig. 4, the resetting-mechanism also includes reduction apparatus 42, after operating resetting-mechanism, reduction apparatus
42 can make resetting-mechanism restore to the original state.The reduction apparatus is flexible member 42, after operation resetting-mechanism terminates, reduction apparatus
The elastic force of flexible member resetting-mechanism 40 can be made to restore to the original state.Or the reduction apparatus contains spring, reset machine is operated
After structure terminates, the elastic force or pulling force of the spring of reduction apparatus can make resetting-mechanism restore to the original state.
In addition, specific described maintaining body can mainly include spring and holding element.When the pressure for reaching setting or
During density, regulating part 38 promotes the movement arm 15 of microswitch to move, and the movement arm 15 of microswitch is stretched or compression spring,
The movement arm of microswitch is set to cross holding element, holding element 14 blocks the movement arm of microswitch.I.e. when the signalizing activity
Afterwards, no matter pressure or density reduce or increase, holding element can keep the movement arm of microswitch to be in signalizing activity state.
After the signalizing activity, no matter pressure or density reduce or increase, elastic component can keep the movement arm of microswitch to be in letter
Number operating state, just can only can reset signal by resetting-mechanism 40.I.e. by operating resetting-mechanism 40, make resetting-mechanism 40
Movement arm 15 of the maintaining body 14 away from microswitch 16 is promoted, the movement arm 15 of microswitch 16 recovers normal condition, makes letter
Number reset.The resetting-mechanism 40 is rotary motion, spinning reduction mechanism 40, makes resetting-mechanism 40 promote maintaining body 14 remote
The movement arm 15 of microswitch, the movement arm 15 of microswitch recover normal condition, reset signal.Resetting-mechanism 40 and housing
It is sealing, when operating resetting-mechanism 40, sealed air chamber G is in sealing state all the time.Resetting-mechanism 40 by sealing ring with
Housing realizes sealing.The resetting-mechanism 40 is that a rod member 401 with lever forms, multiple by rotation process handle, rotation
The rod member of position mechanism, the rod member 401 of resetting-mechanism is set to promote movement arm 15 of the maintaining body 14 away from microswitch, microswitch
Movement arm 15 recover normal condition, reset signal.It is shown in Figure 5, in addition the resetting-mechanism can also be it is horizontal or
Vertical movement, as shown in broken lines, presses or extracts resetting-mechanism 40, resetting-mechanism is promoted maintaining body away from fine motion
The movement arm of switch, the movement arm of microswitch recover normal condition, reset signal.Or the resetting-mechanism is that a band operates
The element composition of handle, by pressing or extracting lever, promotes the element of resetting-mechanism, promotes the element of resetting-mechanism and keeps
Movement arm of the mechanism away from microswitch, the movement arm of microswitch recover normal condition, reset signal.Its method is various,
Such as can also the resetting-mechanism be vertical curve motion, press or extract resetting-mechanism, make resetting-mechanism promotion holding machine
Movement arm of the structure away from microswitch, the movement arm of microswitch recover normal condition, reset signal.The resetting-mechanism is
The one element composition with lever, by upper group or setting aside lever, promotes the element of resetting-mechanism, makes the element of resetting-mechanism
Movement arm of the maintaining body away from microswitch is promoted, the movement arm of microswitch recovers normal condition, resets signal.
The resetting-mechanism 40 also includes reduction apparatus 42, and after operating resetting-mechanism 40, reduction apparatus 42 can make reset
Mechanism 40 restores to the original state.The reduction apparatus 42 is flexible member, after operation resetting-mechanism terminates, the flexible member of reduction apparatus
42 elastic force can make resetting-mechanism 40 restore to the original state.The other reduction apparatus contains spring, after operation resetting-mechanism terminates,
The elastic force or pulling force of the spring of reduction apparatus can make resetting-mechanism restore to the original state.
Product of the embodiment of the present invention also includes also including not dismantling calibration equipment C.Calibration equipment C and connector B are not dismantled
Mutually it is merged.It is described do not dismantle calibration equipment C (being mutually merged B with connector B) be fixed on chassis or
On housing or on joint.The air admission hole A for not dismantling calibration equipment C and chassis, connector B connecting tube 8 are with joint 3 in gas
It is interconnected on road.
The described calibration equipment C that do not dismantle mainly is made up of valve 19, verification mouth 26, can not had to dismounting, be passed through closing
Valve 19, turns off air chamber of the density monitor with inside electric appliance in gas circuit, and density relay is completed by verifying mouth 26
The verification of device.The described valve 19 for not dismantling calibration equipment is blocks class valve, such as ball valve, butterfly valve, gate valve, stop valve, rotation
Plug valve, butterfly valve, needle valve, diaphragm valve etc., can not have to dismounting, by closing valve, make density monitor in gas circuit with electricity
The air chamber shut-off of gas device interior, the verification of density monitor is completed by verifying mouth.
The valve 19 for not dismantling calibration equipment and verification mouth 26 described in the present embodiment link together, and can not have to tear open
Unload, when checking joint with verification mouth 26 be connected with each other when, just automatically close valve 19, make density monitor in gas circuit with
The air chamber shut-off of inside electric appliance, completes the verification of density monitor.And described calibration equipment of not dismantling can be without tearing open
Unload, automatic-closing valve 19 when verifying mouth 26 by verifying transit joint connection, make density monitor in gas circuit with electrically setting
Standby internal air chamber shut-off, completes the verification of density monitor.Specifically, the described valve for not dismantling calibration equipment is cut-off
Valve 19, the stop valve 19 and verification mouth link together, and can not have to dismounting, when checking joint and verification mouth are connected with each other
When, just close stop valve 19, turn off air chamber of the density monitor with inside electric appliance in gas circuit, complete density relay
The verification of device.And described verification mouth 26 is Self-sealing valve, the verification of density monitor is completed by verifying mouth.
With reference to shown in figure 1, described checking joint of not dismantling includes valve 19, verification mouth 26, valve seat 23, Self-sealing valve dress
Put and closeouts 27；The valve seat is provided with relay airway and switch gear airway, and the self-sealing valve device is provided with certainly
Valve airway is sealed, the relay airway, the switch gear airway are connected with the Self-sealing valve airway；The valve
Gate seat is installed on the side of the self-sealing valve pocket of the self-sealing valve device, and the closeouts are removably installed in the self-sealing valve pocket
Opposite side and the opposite side of the self-sealing valve pocket be provided with and second connect with what inflation transit joint or verification transit joint were engaged
Mouthful；The inner chamber of the self-sealing valve pocket is provided with and can be axially moveable to open or close the Self-sealing valve of the Self-sealing valve airway
Core, the side that the self-sealing valve pocket is connected with the valve seat are provided with valve element guide, the valve element guide with it is described self-styled
Be provided with the first spring 20 between valve element, the self-styled valve element be provided with the stop valve that is oppositely arranged with the switch gear airway or
The ball valve being engaged with the oral area of the switch gear airway.Described calibration equipment of not dismantling also includes closeouts, described
Closeouts are removably installed in the opposite side of the self-sealing valve pocket and the opposite side of the self-sealing valve pocket is provided with inflating transition
The second interface that joint or verification transit joint are engaged.In addition, described does not dismantle calibration equipment mainly by valve seat and oneself
Seal valve gear composition；The valve seat is provided with relay airway and switch gear airway, and the self-sealing valve device is provided with certainly
Valve airway is sealed, the relay monitoring airway, the switch gear airway are connected with the Self-sealing valve airway；Institute
State the side that valve seat is installed on the self-sealing valve pocket of the self-sealing valve device；The inner chamber of the self-sealing valve pocket is provided with can be vertically
It is mobile to open or close the self-styled valve element of the Self-sealing valve airway, the self-sealing valve pocket be connected with the valve seat one
Side is provided with valve element guide, and the first spring is provided between the valve element guide and the self-styled valve element, and the self-styled valve element is set
There are the stop valve being oppositely arranged with the switch gear airway or the ball being engaged with the oral area of the switch gear airway
Valve.In order to facilitate tonifying Qi, in addition to tonifying Qi joint.
Product of embodiment of the present invention indication mechanism also includes displays temperature compensating element, and the displays temperature compensating element, is
Bimetal leaf 6.Compensation gas in the sealed air chamber of the bimetal leaf 6 and indication mechanism plays to indicating value indication mechanism jointly
Temperature compensation function.Certain indication mechanism also includes displays temperature compensating element, and the displays temperature compensating element, is filled with benefit
Repay the compensating device of gas.The compensating device filled with compensation gas compensates Baden pipe for the display filled with compensation gas, or
Compensating device filled with compensation gas compensates bellows for the display filled with compensation gas.Certain displays temperature compensating element,
It can also be sealing gas.Also include temperature-sensitive bag, the compensation gas is connected by connecting tracheae with temperature-sensitive bag.
Product of the embodiment of the present invention also includes：Spring 12, spring 12 are nested on push rod 13, and one end of spring 12 leans against branch
Frame 37, the other end of spring are leaned against on push rod guide 39.The wire outlet seat is provided with anti-vibration part, and wire outlet seat is fixed on anti-vibration part
On, anti-vibration part is fixed on chassis or housing.The anti-vibration part is bellows or is made up of the thin plate of anti-vibration function.Wire outlet seat
Connecting line is connected with microswitch, and the connecting line of wire outlet seat is connected on the junction block or cable outside housing.The indicating value shows
Show that mechanism is hermetically sealed makes indicating value be shown as absolute pressure, is not influenceed by height above sea level in display observation window 30, and the display is seen
It is transparent glass to examine window front.Together with the display observation window 30 is sealedly and fixedly connected by sealing ring 36 with chassis 11.
The outside of display observation window 30 is nested with table cover 34.Gas tube on chassis or housing.It can be filled with by gas tube
Corresponding compensation gas.Also include air inlet, air inlet is arranged on chassis or housing, and the joint passes through tracheae and air inlet
It is connected or is directly connected with air inlet.Also include air inlet, air inlet is arranged on chassis, the joint and air inlet phase
Connect, filled with compensation gas in the sealed air chamber.The display base is by connecting tube or is directly anchored on chassis, and this is aobvious
Show that pedestal is connected with joint in gas circuit.The outlet connecting seat is fixedly installed in described close by junction block installation transition piece
Seal on cavity, or, the outlet connecting seat is directly fixedly installed in the seal cavity.The seal cavity outer wrap
There is heat-insulation layer.Located at the pallet of rear face of watchcases, anti-vibration pad is provided between the pallet disk and the watchcase.
The other end of the maintaining body 14 to switch the internal bend of fixed mount 41；The movement arm 15 of the microswitch with
The regulating part 38 abuts against, and one end of the movement arm 15 of the microswitch can be in pressure increase, the band of regulating part 38
Maintaining body 14 described in dynamic lower edge slides into the maintaining body 14 and is connected on the maintaining body 14.
The microswitch may be provided at the outside of bellows 1, microswitch 16 be arranged on regulating part fixed plate front portion or
Rear portion.The present embodiment also includes maintaining body 14 and resetting-mechanism 40 after signalizing activity, and the maintaining body 14 is with needing letter
Number signal contact kept is correspondingly arranged, and after the signal contact act, no matter pressure or density are reduced or increased, maintaining body
14 can keep signalizing activity state, just can only can reset signal by resetting-mechanism 40.
Also include not dismantling checking joint in the present embodiment, do not dismantle checking joint and be fixed on chassis, on housing or connect
On head.Not dismantling checking joint includes valve, verification mouth, valve seat, self-sealing valve device and closeouts；The valve seat be provided with after
Electrical equipment airway and switch gear airway, the self-sealing valve device are provided with Self-sealing valve airway, the relay airway, institute
Switch gear airway is stated with the Self-sealing valve airway to be connected；The valve seat is installed on the self-styled of the self-sealing valve device
The side of valve pocket, the closeouts are removably installed in the opposite side of the self-sealing valve pocket and the opposite side of the self-sealing valve pocket
Provided with the second interface being engaged with inflation transit joint or verification transit joint；The inner chamber of the self-sealing valve pocket is provided with being capable of edge
To open or close the self-styled valve element of the Self-sealing valve airway, the self-sealing valve pocket is connected with the valve seat for axial movement
Side be provided with valve element guide, the first spring, the Self-sealing valve are provided between the valve element guide and the self-styled valve element
Core is provided with the stop valve being oppositely arranged with the switch gear airway or is engaged with the oral area of the switch gear airway
Ball valve.Filled with compensation gas in the sealed air chamber, or, filled with compensation gas in the bellows；The compensation gas
It is attached by connecting tracheae with a temperature-sensitive bag；And the compensation gas is supplemented by gas tube, and the gas tube
On chassis or housing.The compensating device filled with compensation gas compensates Baden pipe for the display filled with compensation gas, or
Compensating device filled with compensation gas compensates bellows for the display filled with compensation gas.The wire outlet seat is fixed on chassis or shell
On body；Or wire outlet seat is provided with anti-vibration part, wire outlet seat is fixed on anti-vibration part, and anti-vibration part is fixed on chassis or housing, described to keep away
The part that shakes is bellows or is made up of the thin plate of anti-vibration function that the connecting line of wire outlet seat is connected with microswitch, and the company of wire outlet seat
Wiring is connected on the junction block or cable outside housing.The indicating value indication mechanism is hermetically sealed in display observation window, and indicating value shows
Absolute pressure is shown as, the display observation window front is transparent glass, and the display observation window is close with chassis by sealing ring
Envelope is fixed together, and table cover is nested with outside the display observation window.The displays temperature compensating element, includes：Bimetallic
The compensating device that piece is formed or the compensating device filled with compensation gas.Also include air inlet, air inlet is arranged on chassis or shell
On body, the joint is connected with air inlet by tracheae or is directly connected with air inlet；Or air inlet is arranged on chassis,
The joint is connected with air inlet, passes through connecting tube or straight filled with compensation gas, the display base in the sealed air chamber
Connect and be fixed on chassis, the display base is connected with joint in gas circuit.Chassis is located at the lower section or lower section of the bellows,
Gas compensation is carried out by the bellows or gas compensation is carried out by the air chamber.The outlet connecting seat passes through junction block
Installation transition piece is fixedly installed in the seal cavity, or, the outlet connecting seat is directly fixedly installed in the sealing
On cavity.The seal cavity outer wrap has heat-insulation layer；Also include anti-vibration pad, and the anti-vibration pad is located at the chassis and institute
State between watchcase.
In addition, described microminiature sulfur hexafluoride gas density relay, can also be included dynamic with described microswitch
Make arm, after the signalizing activity, maintaining body maintains and (blocked) movement arm, no matter pressure or density reduces or increase, keep
Mechanism can keep signalizing activity state, just can only can reset signal by resetting-mechanism.For example, described movement arm is bullet
Property part, when reaching the pressure or density of setting, regulating part promote microswitch movement arm motion, due to movement arm for elasticity
Part, so that it may the which so that movement arm of microswitch crosses maintaining body well, and maintaining body maintains and (blocked) movement arm.This
Sample one, i.e., after the signalizing activity, no matter pressure or density reduce or increase, maintaining body can keep the dynamic of microswitch
Make arm and be in signalizing activity state.In addition can also, described maintaining body is magnetic element.When the pressure or close for reaching setting
When spending, regulating part promotes the movement arm motion of microswitch, the movement arm of microswitch is close to magnetic element.I.e. when the signal
After action, no matter pressure or density reduce or increase, magnetic element can keep the movement arm of microswitch to be in signalizing activity
State.
Described microminiature sulfur hexafluoride gas density relay, its (locking) signal of alarming keep implementation method may be used also
With：Described microswitch carries movement arm, and after the signalizing activity, maintaining body maintains movement arm, no matter pressure or close
Degree reduces or increase, maintaining body can keep signalizing activity state, just can only can reset signal by resetting-mechanism.Specifically
For, described movement arm is elastic component.When reaching the pressure or density of setting, regulating part promotes the movement arm of microswitch
Motion, because movement arm be elastic component, it is possible to the movement arm of microswitch is crossed maintaining body, and maintaining body
Movement arm can be blocked.I.e. after the signalizing activity, no matter pressure or density reduce or increase, maintaining body can keep fine motion
The movement arm of switch is in signalizing activity state.
The position of the microswitch can be arranged on the outside of bellows, i.e., microswitch can be disposed below, and be avaled
Go, make the thickness of density monitor thinning.
The technical scheme of the density monitor can be interior filled with compensation with up to more than 4 kinds of permutation and combination, such as bellows
Gas, its chassis is in up or down；Or filled with compensation gas in air chamber, its chassis is in up or down.And show compensation technique scheme
Can have：Bimetal leaf, or Baden pipe, or bellows；And the measuring principle of display portion can be：Absolute pressure or relative pressure
Power.
Displays temperature compensating element, can be the gas of sealing, and compensating plate can not be bimetal leaf.
Gas can be the various gases such as sulfur hexafluoride gas, sulfur hexafluoride gas mixture, nitrogen, compressed air.
Display base is fixed on chassis, or the display base is fixed on bottom plate.Fixed mount can also be fixed on shell
On body, or in housing.Push rod guide can also be fixed on housing, or in housing.Microswitch can also be fixed on housing
On, or in housing.
The position of the microswitch can be arranged on the outside of bellows, i.e., microswitch can be disposed below, and be avaled
Go, make the thickness of density monitor thinning.
In a word, the density monitor can be with up to 4 kinds of permutation and combination, and bellow-type expansion gas, chassis is in up or down；Air chamber
Compensation gas, chassis is in up or down.Display compensation：Bimetal leaf, or Baden pipe, or bellows；Display：Absolute pressure is relative
Pressure.Various needs can be met with comprehensive, ensure the safety of power network well.
The display base is fixed on chassis.Filled with compensation gas in the sealed air chamber, or, in the bellows
Filled with compensation gas.The wire outlet seat is fixed on chassis or housing；Or wire outlet seat is provided with anti-vibration part, wire outlet seat is fixed on anti-vibration
On part, anti-vibration part is fixed on chassis or housing.The position of the microswitch can be arranged on the outside of bellows.Below,
Sink；Regulating part fixed plate is U-shaped.Chassis is located at the lower section or lower section of the bellows, enters promoting the circulation of qi by the bellows
Body compensates or carries out gas compensation by the air chamber.
The present invention microminiature sulfur hexafluoride gas density relay, passed through very big innovation, have gas pressure (or
Gas density) maintaining body and resetting-mechanism, it is possible to achieve electrical equipment arcing overpressure alarm function.I.e. when electrical equipment arcing
Afterwards, being capable of overpressure alarm during its hypertonia.And its pressure it is normal when, its alarm signal is always maintained at, and can allow operations staff
It was found that electrical equipment arcing phenomenon, the electrical equipment of timely processing arcing phenomenon, ensure electric power safety operation.
The microminiature sulfur hexafluoride gas density relay of the present invention, signaling gear use bellows, ensure anti-seismic performance
It is good；Indicating value indication mechanism uses Baden pipe, due to being realized using Baden pipe, overcomes that bellows displacement is small, is difficult to gamut
Display problem, can easily realize the density monitor of gamut scope, particularly be very easy to realization be initiated with-
0.1MPa display, can shows vacuum when vacuumizing, and is very easy to popularization and application.Displays temperature benefit is additionally used in addition
Element is repaid to realize the temperature compensation function of indicating value display portion, improves and ensure that precision.In a word, microminiature six of the invention
Sulfur fluoride gas density relay have oil-free, resistance to shock again it is good, precision is high, good electric property, long working life, gamut
The advantages of indication range.Simultaneously because the microswitch can be located in the seal cavity, and there is hexafluoro in seal cavity
Change sulphur gas, because sulfur hexafluoride gas has very strong insulation and arc extinguishing ability, so the electricity of the technology of the present invention density monitor
Gas contact has extraordinary electric property, and using reliable, contacts are reliable, long lifespan, and this is also the very big wound of the present invention
New point and feature.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (21)
1. a kind of microminiature gas density relay, including：Housing, joint and the signaling gear to link together and indicating value
Indication mechanism；
The bellows of gas density and the microswitch as contact in detection electrical equipment are provided with the signaling gear；
The indicating value indication mechanism includes：Show Baden pipe, display end seat, movement, dial, pointer, display base and display
Observation window；One end of the display Baden pipe is sealedly attached to the display end seat, the other end connection of the display Baden pipe
On the display base, the pointer is installed on the movement,
Described signaling gear includes chassis, bellows, support, push rod, fixed mount, some microswitches, some regulating parts, tune
Part fixed plate, housing, wire outlet seat are saved, on chassis, the other end sealing welding of bellows exists one end sealing welding of bellows
On support, fixed mount is fixed in chassis or housing, and push rod is fixed on support, and microswitch is fixed on fixed mount or chassis
On, regulating part fixed plate is fixed on push rod, and some regulating parts are fixed in regulating part fixed plate, and wire outlet seat sealing is fixed on shell
On body or chassis, one end sealing welding of housing forms sealed air chamber, it is characterised in that sealed air chamber's interior sealing on chassis
There is compensation gas, the compensation gas plays temperature compensation function to signaling gear, and display observation window is fixed on chassis, and indicating value is shown
Mechanism is in display observation window, and joint is fixed on housing, and display base is fixed on chassis, and chassis is provided with air admission hole, enters
Stomata is interconnected by connector and joint in gas circuit, and in gas circuit, display Baden pipe, bellows pass through air admission hole, company
Fitting is interconnected with joint.
2. microminiature gas density relay according to claim 1, it is characterised in that also including push rod guide, top
Bar is passed through from push rod guide, and push rod guide is fixed on fixed mount.
3. microminiature gas density relay according to claim 1, it is characterised in that microswitch is arranged on regulating part
The front and rear of fixed plate；
Or microswitch is arranged on the rear portion of regulating part fixed plate.
4. microminiature gas density relay according to claim 1, it is characterised in that also including the guarantor after signalizing activity
Hold mechanism or maintaining body and resetting-mechanism；
Described maintaining body with need signal keep signal contact be correspondingly arranged, after the signalizing activity, no matter pressure or
Density reduces or increase, maintaining body can keep signalizing activity state, just can only can reset signal by resetting-mechanism；It is logical
Operation resetting-mechanism is crossed, resetting-mechanism is promoted movement arm of the maintaining body away from microswitch, the movement arm of microswitch is extensive
Multiple normal condition, resets signal.
5. microminiature gas density relay according to claim 4, it is characterised in that described maintaining body is elasticity
Part, when reaching the pressure or density of setting, regulating part promotes the movement arm motion of microswitch, makes the movement arm of microswitch
Cross elastic component；I.e. after the signalizing activity, no matter pressure or density reduce or increase, elastic component can keep microswitch
Movement arm is in signalizing activity state；
After the signalizing activity, no matter pressure or density reduce or increase, elastic component can be kept at the movement arm of microswitch
In signalizing activity state, it can just reset signal by resetting-mechanism.
6. microminiature gas density relay according to claim 5, it is characterised in that described maintaining body includes bullet
Spring and holding element, when reaching the pressure or density of setting, regulating part promotes the movement arm motion of microswitch, opens fine motion
The movement arm stretching of pass or compression spring, make the movement arm of microswitch cross holding element, holding element blocks microswitch
Movement arm, i.e., after the signalizing activity, no matter pressure or density reduce or increase, holding element can keep microswitch
Movement arm is in signalizing activity state.
7. microminiature gas density relay according to claim 6, it is characterised in that the resetting-mechanism is a ribbon gymnastics
Make the rod member composition of handle, by rotation process handle, the rod member of spinning reduction mechanism, the rod member of resetting-mechanism is promoted maintaining body
Movement arm away from microswitch, the movement arm of microswitch recover normal condition, reset signal；
The resetting-mechanism is pressed or extracted resetting-mechanism horizontally or vertically to move, make resetting-mechanism promote maintaining body remote
From the movement arm of microswitch, the movement arm of microswitch recovers normal condition, resets signal；
Or, the resetting-mechanism is rotary motion, spinning reduction mechanism, resetting-mechanism is promoted maintaining body away from microswitch
Movement arm, the movement arm of microswitch recovers normal condition, resets signal.
8. microminiature gas density relay according to claim 7, it is characterised in that the resetting-mechanism is a ribbon gymnastics
Make the element composition of handle, by pressing or extracting lever, promote the element of resetting-mechanism, promote the element of resetting-mechanism and protect
Movement arm of the mechanism away from microswitch is held, the movement arm of microswitch recovers normal condition, resets signal；
The resetting-mechanism moves for vertical curve, presses or extract resetting-mechanism, makes resetting-mechanism promote maintaining body remote
The movement arm of microswitch, the movement arm of microswitch recover normal condition, reset signal；
Or, the resetting-mechanism is an element composition with lever, by pressing or extracting lever, promotes resetting-mechanism
Element, the element of resetting-mechanism is set to promote movement arm of the maintaining body away from microswitch, the movement arm of microswitch recovers just
Normal state, resets signal；
Or, the resetting-mechanism also includes reduction apparatus, after operating resetting-mechanism, reduction apparatus can make resetting-mechanism recover former
Shape, the reduction apparatus are flexible member, and after operation resetting-mechanism terminates, the elastic force of the flexible member of reduction apparatus can make again
Position mechanism restores to the original state.
9. microminiature gas density relay according to claim 8, it is characterised in that the reduction apparatus contains bullet
Spring, after operation resetting-mechanism terminates, the elastic force or pulling force of the spring of reduction apparatus can make resetting-mechanism restore to the original state.
10. microminiature gas density relay according to claim 1, it is characterised in that also include not dismantling verification dress
Put, described calibration equipment of not dismantling is fixed on chassis or on housing or on joint, described not dismantle calibration equipment and chassis
Air admission hole, connector and joint be interconnected in gas circuit, described calibration equipment of not dismantling is made up of valve, verification mouth,
Dismounting can not had to, by closing valve, air chamber of the density monitor with inside electric appliance in gas circuit is turned off, pass through school
The verification that mouth completes density monitor is tested,
Or, the described valve for not dismantling calibration equipment and verification mouth link together, can not have to dismounting, when checking joint with
When verification mouth has been connected with each other, valve just is closed automatically, makes air chamber of the density monitor with inside electric appliance in gas circuit
Shut-off, completes the verification of density monitor；
Or, described calibration equipment of not dismantling can be closed automatically without dismounting when verifying mouth by verifying transit joint connection
Valve, air chamber of the density monitor with inside electric appliance in gas circuit is turned off, completes the verification of density monitor；
Or, the described valve for not dismantling calibration equipment can not have to dismounting, by closing valve, make close to block class valve
Spend air chamber of the relay with inside electric appliance in gas circuit to turn off, the verification of density monitor is completed by verifying mouth；
Or, the described valve for not dismantling calibration equipment is stop valve, the stop valve and verification mouth link together, can not had to
Dismounting, when checking joint has been connected with each other with verification mouth, stop valve just is closed, makes density monitor in gas circuit and electric
The air chamber shut-off of device interior, completes the verification of density monitor, and described verification mouth is Self-sealing valve, close by verifying mouth completion
Spend the verification of relay；
Or, described checking joint of not dismantling includes valve, verification mouth, valve seat, self-sealing valve device and closeouts；The valve
Seat is provided with relay airway and switch gear airway, and the self-sealing valve device is provided with Self-sealing valve airway, the relay
Airway, the switch gear airway are connected with the Self-sealing valve airway；The valve seat is installed on the Self-sealing valve
The side of the self-sealing valve pocket of device, the closeouts are removably installed in the opposite side of the self-sealing valve pocket and the Self-sealing valve
The opposite side of set is provided with the second interface being engaged with inflation transit joint or verification transit joint；The inner chamber of the self-sealing valve pocket
Provided with that can be axially moveable to open or close the self-styled valve element of the Self-sealing valve airway, the self-sealing valve pocket with it is described
The side of valve seat connection is provided with valve element guide, and the first spring is provided between the valve element guide and the self-styled valve element,
The self-styled valve element be provided with the stop valve that is oppositely arranged with the switch gear airway or with the switch gear airway
The ball valve that oral area is engaged；
Or, described calibration equipment of not dismantling also includes closeouts, the closeouts are removably installed in the self-sealing valve pocket
Opposite side and the opposite side of the self-sealing valve pocket be provided with and second connect with what inflation transit joint or verification transit joint were engaged
Mouthful；
Or, described calibration equipment of not dismantling mainly is made up of valve seat and self-sealing valve device；The valve seat is provided with relay
Airway and switch gear airway, the self-sealing valve device are provided with Self-sealing valve airway, the relay monitoring airway, institute
Switch gear airway is stated with the Self-sealing valve airway to be connected；The valve seat is installed on the self-styled of the self-sealing valve device
The side of valve pocket；The inner chamber of the self-sealing valve pocket is provided with and can be axially moveable to open or close the Self-sealing valve airway
Self-styled valve element, the side that the self-sealing valve pocket is connected with the valve seat is provided with valve element guide, the valve element guide with
The first spring is provided between the self-styled valve element, the self-styled valve element is provided with to be cut with what the switch gear airway was oppositely arranged
Only valve or the ball valve being engaged with the oral area of the switch gear airway.
11. microminiature gas density relay according to claim 1, it is characterised in that indication mechanism also includes display
Temperature compensating element, the displays temperature compensating element, are the compensating device filled with compensation gas；Preferably, the displays temperature
Compensating element, is bimetal leaf, and the compensation gas in the sealed air chamber of the bimetal leaf and indication mechanism is shown to indicating value jointly
Mechanism plays temperature compensation function.
12. microminiature gas density relay according to claim 11, it is characterised in that described filled with compensation gas
Compensating device compensates Baden pipe for the display filled with compensation gas, or the compensating device filled with compensation gas is filled with compensation gas
Display compensation bellows, in addition to temperature-sensitive bag, the compensation gas be connected by connecting tracheae with temperature-sensitive bag.
13. microminiature gas density relay according to claim 1, it is characterised in that also include：Spring, spring are embedding
It is enclosed on push rod, one end of spring leans against support, and the other end of spring is leaned against on push rod guide.The wire outlet seat is provided with anti-vibration
Part, wire outlet seat are fixed on anti-vibration part, and anti-vibration part is fixed on chassis or housing；Preferably, the anti-vibration part be bellows or
It is made up of the thin plate of anti-vibration function.
14. the microminiature gas density relay according to claim 1 or 13, it is characterised in that the connecting line of wire outlet seat
It is connected with microswitch, and the connecting line of wire outlet seat is connected on the junction block or cable outside housing.
15. microminiature gas density relay according to claim 1, it is characterised in that the indicating value indication mechanism is complete
It is sealed in display observation window, indicating value is shown as absolute pressure, do not influenceed by height above sea level, the display observation window front is
Transparent glass, it is described display observation window be sealedly and fixedly connected by sealing ring with chassis together with.
16. the microminiature gas density relay according to claim 1 or 3, it is characterised in that also include：Located at chassis
Or the gas tube on housing, corresponding compensation gas can be filled with by gas tube.
17. microminiature gas density relay according to claim 1 or 2, it is characterised in that also including air inlet, enter
Gas port is arranged on chassis or housing, the joint be connected by connector or tracheae with air inlet or directly with air inlet phase
Connection；Preferably, in addition to air inlet, air inlet are arranged on chassis, and the joint is connected with air inlet, the blanket gas
Interior is filled with compensation gas, and the display base is by connecting tube or is directly anchored on chassis, and the display base exists with joint
It is connected in gas circuit.
18. microminiature sulfur hexafluoride gas density relay according to claim 1, it is characterised in that described fine motion
Switch also includes movement arm, and after the signalizing activity, maintaining body maintains movement arm, no matter pressure or density reduces or increasing
Add, maintaining body can keep signalizing activity state, just can only can reset signal by resetting-mechanism, described movement arm is
Elastic component, when reaching the pressure or density of setting, regulating part promotes the movement arm motion of microswitch, makes the dynamic of microswitch
Maintaining body is crossed as arm, the movement arm of microswitch is in signalizing activity state.
19. microminiature gas density relay according to claim 1 or 5, it is characterised in that resetting-mechanism is with housing
Sealing, when operating resetting-mechanism, the sealed air chamber in housing is in sealing state all the time, and the resetting-mechanism passes through sealing
Circle realizes sealing with housing.
20. the microminiature gas density relay according to claim 1 or 6, it is characterised in that described maintaining body is
Magnetic element.When reaching the pressure or density of setting, regulating part promotes the movement arm motion of microswitch, makes microswitch
Movement arm is close to magnetic element.I.e. after the signalizing activity, no matter pressure or density reduce or increase, magnetic element can be kept
The movement arm of microswitch is in signalizing activity state；Or, described maintaining body contains magnetic element, when the pressure for reaching setting
When power or density, regulating part promotes the movement arm motion of microswitch, the movement arm of microswitch is crossed maintaining body, acts
Arm proximate magnetic element, i.e., after the signalizing activity, no matter pressure or density reduce or increase, and the magnetic element of maintaining body is more
The movement arm that microswitch can be kept by adding is in signalizing activity state.
21. the microminiature gas density relay according to claim 1 or 10, it is characterised in that do not dismantle calibration equipment
Mutually it is merged with connector.
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| CN108550499A (en) * | 2018-04-27 | 2018-09-18 | 朗松珂利(上海)仪器仪表有限公司 | Sulfur hexafluoride gas density relay and its assembly technology |
| CN109243914A (en) * | 2018-09-28 | 2019-01-18 | 上海乐研电气有限公司 | A kind of method and high-precision gas density monitor improving gas density relay precision |
| CN110429005A (en) * | 2019-09-04 | 2019-11-08 | 上海乐研电气有限公司 | A kind of gas density relay and monitoring system of on-line monitoring gas micro water content |
| CN111223712A (en) * | 2020-03-09 | 2020-06-02 | 上海乐研电气有限公司 | Remote gas density relay |
| CN113314380A (en) * | 2021-04-09 | 2021-08-27 | 江元(天长)科技股份有限公司 | Mechanical pressure switch structure convenient to debug and switching system |
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| CN113314380A (en) * | 2021-04-09 | 2021-08-27 | 江元(天长)科技股份有限公司 | Mechanical pressure switch structure convenient to debug and switching system |
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