CN101038829B - Heightening operation arm anti-vibration pointer type SF6 gas density relay - Google Patents
Heightening operation arm anti-vibration pointer type SF6 gas density relay Download PDFInfo
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- CN101038829B CN101038829B CN2006101597250A CN200610159725A CN101038829B CN 101038829 B CN101038829 B CN 101038829B CN 2006101597250 A CN2006101597250 A CN 2006101597250A CN 200610159725 A CN200610159725 A CN 200610159725A CN 101038829 B CN101038829 B CN 101038829B
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- operation arm
- gas density
- sensitive switch
- density relay
- adjusting rod
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Abstract
The invention provides a pointer type SF6 gas density relay with heightening aseismatic type operation arm including a housing and a pedestal disposed in the housing, a core mechanism, a C-shape tube, a temperature compensation sheet, beams, a link rod, one or more regulation rod respectively correspondingly configured and microswitches, a printed circuit board and a fixed plate. Each microswitch is respectively connected with an operation arm, which is characterized in that: the height of each baffle disposed on both sides of the front end of each operation arm is 2.6 to 18 mm, an end plate can be arranged at the front end of each operation arm, and the end plate combining with the baffles of both sides together forms a semi-closed area capable of restricting the deviation of the regulation rod from the operation arm. The a pointer type SF6 gas density relay with heightening aseismatic type operation arm can prevent the shift of the switch operation arm and the regulation rod when the switch vibrates in opening and closing, so that the regulation rod will not be locked or deviate from the microswitch, thereby guaranteeing the system to work reliably, and improving the aseismatic performance of the product.
Description
Technical field
The present invention relates to a kind of relay, relate in particular to a kind of SF of being applied in
6Heightening operation arm anti-vibration pointer type SF on the electric equipment
6Gas density relay.
Background technology
SF
6Electric product has been widely used in power department, and industrial and mining enterprises have promoted the fast development of power industry.Guarantee SF
6The reliable and secure operation of electric product has become one of vital task of power department.SF
6The arc-extinguishing medium of electric product and dielectric are SF
6Gas can not leak gas, if leak gas, just can not guarantee SF
6The reliable and secure operation of electric product.So monitoring SF
6The SF of electric product
6Density value is very necessary.Be used for monitoring SF now
6Density generally adopts a kind of pointer density monitor of machinery, has the SF of working as
6Can report to the police and blocking function when gas leakage takes place electric product, also have the performance of on-the-spot display density value.The density monitor contact that uses mainly adopts electric contact type and sensitive switch type at present, and electric contact type density monitor generally will fill the silicone oil that antivibration is used, so regular meeting's generation oil leakage phenomenon, brings loss to the user.One of problem that the no oil type density monitor of sensitive switch type exists is, the width of the motion arm of the sensitive switch that is adopted has only 4.1mm, the front end both sides of motion arm respectively are provided with a baffle plate, it highly has only 2.2mm, this structure is when the judder of switch breaking-closing operating, be easy to cause the displacement of switching manipulation arm and adjusting rod, and adjusting rod is blocked or break away from the phenomenon of sensitive switch motion arm, can not guarantee system's reliably working.In case this thing happens, have only and change relay again, cause direct economic loss to the user.So it is good to develop a kind of performance, the good pointer SF of its resistance to shock especially
6Gas density relay is very important.
Summary of the invention
Purpose of the present invention is to solve the problems referred to above that prior art exists, and a kind of heightening operation arm anti-vibration pointer type SF is provided
6Gas density relay is used for control and monitors airtight container SF
6The density of gas is at SF
6The gas leakage situation that occurs in the electric equipment is in time sent alarm signal, and block signal is for ensureing that electric power safety plays effect.
The object of the present invention is achieved like this: a kind of heightening operation arm anti-vibration pointer type SF6 gas density relay, comprise housing and be arranged on adjusting rod and sensitive switch, printed circuit board and the fixed head that pedestal, movement, C shape pipe, temperature-compensating sheet, crossbeam, connecting rod, one or more correspondence separately in the housing are provided with, on each sensitive switch, be connected with a motion arm respectively, be characterized in that the height of described each motion arm front end two side shield is 2.6-18mm.
The front end of described each motion arm also can be provided with an end plate respectively, and this end plate can limit the semi enclosed area that adjusting rod breaks away from motion arm with two side shields one of the common formation of the front end of motion arm.
Described sensitive switch has one to four, and the corresponding adjusting rod that is provided with also has one to four.
Heightening operation arm anti-vibration pointer type SF of the present invention
6Gas density relay is owing to increased the height of motion arm, and can set up an end plate at the front end of motion arm, jointly constitute the semi enclosed area that can limit adjusting rod disengaging motion arm with two side shields at the front end of motion arm by this end plate, can be when the switch divide-shut brake produces vibration, avoid causing the displacement of switching manipulation arm and adjusting rod, and make adjusting rod can not block or break away from the phenomenon of sensitive switch, guarantee system's reliably working.
Description of drawings
Fig. 1 is heightening operation arm anti-vibration pointer type SF of the present invention
6The structural representation of gas density relay;
Fig. 2 is the partial side view of structure shown in Figure 1;
Fig. 3 is the partial enlarged drawing of Fig. 1.
Embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3.Heightening operation arm anti-vibration pointer type SF of the present invention
6Gas density relay comprises SF
6 Gas connection 1, movement 2, housing 3, dial 4, pointer 5, C shape pipe 6, temperature-compensating sheet 7, junction block 8, printed circuit board 10, location-plate 11, fixed head 12, electric wire 13, connecting rod 15, crossbeam 16, watch crystal 17, cover circle 18, pedestal 19, SF
6 Air shooter 20 and one to four corresponding separately sensitive switch and the adjusting rod that is provided with, present embodiment is three, i.e. sensitive switch among the figure 91,92,93 and adjusting rod 141,142,143.Wherein, SF6 gas connection 1, junction block 8, watch crystal 17, cover circle 18 and pedestal 19 are separately fixed on the housing 3.Movement 2 is fixed on the pedestal 19, and pointer 5 and dial 4 are separately fixed on the movement 2.One end of C shape pipe 6 is welded on the pedestal 19 and is communicated with it, and the other end is connected with an end of temperature-compensating sheet 7, and the other end of temperature-compensating sheet 7 is connected with crossbeam 16, and crossbeam 16 is connected with connecting rod 15 again, and connecting rod 15 is connected with movement 2.Be fixed with adjusting rod 141,142,143 on the crossbeam 16.Sensitive switch 91,92,93 is welded on respectively on the printed circuit board 10, and printed circuit board 10 is installed on the fixed head 12, and fixed head 12 is installed in again on the pedestal 19.Sensitive switch 91 is fixed on the below of adjusting rod 141, and sensitive switch 92 is fixed on the below of adjusting rod 142, and sensitive switch 93 is fixed on the below of adjusting rod 143.Be respectively equipped with motion arm 911,921,931 on each sensitive switch.Location-plate 11 is fixed on the movement 2, and its front end extends to the below of C shape pipe 6 ends that link to each other with temperature-compensating sheet 7, and its function is: work as SF
6When gas density dropped to certain value, spacing C shape pipe 6 moved down, the protection sensitive switch, and then protection crossbeam 16 do not damaged by pressure and is out of shape, and makes whole system keep reliably working.The contact of sensitive switch by electric wire 13, is connected on the junction block 8 from printed circuit board 10, and junction block 8 is fixed on the watchcase 3.Watch crystal 17, cover circle 18 are separately fixed on the watchcase 3, can protect its internal mechanism to avoid mechanical damage and dirt, rainwater are invaded.SF
6One end of air shooter 20 is connected with pedestal 19, and positiver sealing, SF
6The other end of air shooter 20 is connected with joint 1, and positiver sealing.
Characteristics of the present invention are the height that increased motion arm, the height of motion arm front end two side shields is increased to 2.6-18mm by original 2.2mm, in addition also can be further an end plate A be set respectively, jointly constitutes one with two side shields at the front end of motion arm by this end plate and can limit the semi enclosed area that adjusting rod breaks away from motion arm at the front end of each motion arm.So, when the switch divide-shut brake produces vibration,, also can avoid causing the displacement of switching manipulation arm and adjusting rod, and make adjusting rod can not block or break away from the phenomenon of sensitive switch, guarantee system's reliably working even crossbeam axially or radially is being shifted.Improved the resistance to shock of product greatly.
Heightening operation arm anti-vibration pointer type SF of the present invention
6The action principle of gas density relay is based on flexible member C shape pipe 6, utilizes the pressure and temperature of 7 pairs of variations of temperature-compensating sheet to revise, reaction SF
6The variation of gas density.Promptly at measured medium SF
6Under the pressure effect of gas, because the effect of temperature-compensating sheet 7 has been arranged, the variation of its density value, force value also changes accordingly, force the end of C shape pipe 6 to produce corresponding strain-displacement,, pass to movement 2 by means of temperature-compensating sheet 7 and connecting rod 15, movement 2 passes to pointer 5 again, satisfies tested SF
6The gas density value indicates on dial.Density monitor just can be SF like this
6Density value has shown.If leaked gas, its density value drops to a certain degree (reach and report to the police or the locking value), C shape pipe 6 produces accordingly to bottom offset, by temperature-compensating sheet 7, make crossbeam 16 to bottom offset, adjusting rod 141,142,143 on the crossbeam 16 just promotes corresponding sensitive switch 91,92,93 contacts and connects, and sends corresponding signal (reporting to the police or locking), reaches the SF in the equipment such as supervision and control electric switch
6Gas density makes the electric equipment trouble free service.If its density value has raise, force value also raises accordingly, be elevated to a certain degree, C shape pipe 6 also produces accordingly to top offset, by temperature-compensating sheet 7, makes crossbeam 16 to top offset, adjusting rod 141,142,143 on the crossbeam 16 is just to top offset, adjusting rod 141,142,143 is just away from sensitive switch 91,92,93, and its contact just disconnects, and signal (reporting to the police or locking) is just removed.So just finish the function of density monitor.
Because heightening operation arm anti-vibration pointer type SF of the present invention
6The signal contact of gas density relay adopts the sensitive switch form, moreover the control of sensitive switch contact is all controlled by adjusting rod, and the control of adjusting rod is carried out by compensating plate 7 and C shape pipe 6, compensating plate 7 generally is not afraid of vibration, it only changes with variation of temperature, and the power of C shape pipe is bigger, and resistance to shock is better, is difficult for being out of shape or producing displacement because of vibration.The most important thing is, in order to increase resistance to shock, the present invention has increased the height of motion arm, and can set up a baffle plate at the front end of motion arm, jointly constitutes the enclosed area that can limit adjusting rod disengaging motion arm with biside plate at the front end of motion arm by this baffle plate.So, when the switch divide-shut brake produces vibration,, can prevent that also adjusting rod from blocking or breaking away from the phenomenon of sensitive switch, guarantee system's reliably working, improve the resistance to shock of this product greatly even crossbeam axially or radially is being shifted.In addition, SF
6After the density value of gas descended, C shape pipe 6 just moved down, and until the action of signal (reporting to the police or locking) contact, promptly the sensitive switch contact is connected.Density value descends more, and it is firm more that sensitive switch is just connected, and descends again, C shape pipe 6 plate 11 that just is positioned is positioned on its scale value, and at this moment, C shape pipe 6 is used on the sensitive switch with bigger masterpiece, sensitive switch is under the good pressure and in the good connection, is not afraid of vibration.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in claims scope of the present invention variation, the modification of the above embodiment.Also can be fixed on the top (being other direction) of adjusting rod as sensitive switch.
Claims (2)
1. heightening operation arm anti-vibration pointer type SF
6Gas density relay, comprise housing and be arranged on adjusting rod and sensitive switch, printed circuit board and the fixed head that pedestal, movement, C shape pipe, temperature-compensating sheet, crossbeam, connecting rod, one or more correspondence separately in the housing are provided with, be connected with a motion arm respectively on each sensitive switch, it is characterized in that: the height of described each motion arm front end two side shield is 2.6-18mm; The front end of described each motion arm also is respectively equipped with an end plate, and this end plate can limit the semi enclosed area that adjusting rod breaks away from motion arm with two side shields one of the common formation of the front end of motion arm.
2. heightening operation arm anti-vibration pointer type SF as claimed in claim 1
6Gas density relay is characterized in that: described sensitive switch has one to four, and the corresponding adjusting rod that is provided with also has one to four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101597250A CN101038829B (en) | 2006-03-17 | 2006-09-29 | Heightening operation arm anti-vibration pointer type SF6 gas density relay |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610024836.0 | 2006-03-17 | ||
| CN200610024836 | 2006-03-17 | ||
| CN2006101597250A CN101038829B (en) | 2006-03-17 | 2006-09-29 | Heightening operation arm anti-vibration pointer type SF6 gas density relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101038829A CN101038829A (en) | 2007-09-19 |
| CN101038829B true CN101038829B (en) | 2011-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2006101597250A Active CN101038829B (en) | 2006-03-17 | 2006-09-29 | Heightening operation arm anti-vibration pointer type SF6 gas density relay |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217357A (en) * | 2013-04-18 | 2013-07-24 | 国家电网公司 | Intelligent SF6 density multi-gas-circuit detecting method of sealed combined electric appliance |
| CN110491724A (en) * | 2019-09-04 | 2019-11-22 | 上海乐研电气有限公司 | A kind of teletransmission gas density relay system and its method of calibration |
| CN110441195B (en) * | 2019-09-04 | 2024-05-14 | 上海乐研电气有限公司 | Gas density relay with online self-checking function and checking method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3505809A1 (en) * | 1985-02-20 | 1986-08-21 | Haenni & Cie Mbh, 7000 Stuttgart | Device for monitoring the density of a gas in a pressure vessel |
| DE4009741A1 (en) * | 1990-03-27 | 1991-10-02 | Kurt Puetz | Gas bottle manometer for gas leak detection - has pressure detector and pressure threshold detector operating warning signal device |
| DE4440906C2 (en) * | 1994-11-17 | 1998-07-09 | Helag Electronic Gmbh | Pressure monitoring device |
| CN2519397Y (en) * | 2001-12-30 | 2002-10-30 | 高新榜 | Pointer type SF6 gas density relay |
| CN2679825Y (en) * | 2004-02-23 | 2005-02-16 | 上海珂利电气有限公司 | Anti-shocking anolog type sulfur hexafluoride gas density relay |
-
2006
- 2006-09-29 CN CN2006101597250A patent/CN101038829B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3505809A1 (en) * | 1985-02-20 | 1986-08-21 | Haenni & Cie Mbh, 7000 Stuttgart | Device for monitoring the density of a gas in a pressure vessel |
| DE4009741A1 (en) * | 1990-03-27 | 1991-10-02 | Kurt Puetz | Gas bottle manometer for gas leak detection - has pressure detector and pressure threshold detector operating warning signal device |
| DE4440906C2 (en) * | 1994-11-17 | 1998-07-09 | Helag Electronic Gmbh | Pressure monitoring device |
| CN2519397Y (en) * | 2001-12-30 | 2002-10-30 | 高新榜 | Pointer type SF6 gas density relay |
| CN2679825Y (en) * | 2004-02-23 | 2005-02-16 | 上海珂利电气有限公司 | Anti-shocking anolog type sulfur hexafluoride gas density relay |
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| Publication number | Publication date |
|---|---|
| CN101038829A (en) | 2007-09-19 |
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