CN200990339Y - Antivibrating pointer type SF6 gas density relay - Google Patents
Antivibrating pointer type SF6 gas density relay Download PDFInfo
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- CN200990339Y CN200990339Y CN 200620048369 CN200620048369U CN200990339Y CN 200990339 Y CN200990339 Y CN 200990339Y CN 200620048369 CN200620048369 CN 200620048369 CN 200620048369 U CN200620048369 U CN 200620048369U CN 200990339 Y CN200990339 Y CN 200990339Y
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- adjusting rod
- gas density
- density relay
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Abstract
A vibration resistant pointer SF6 gas density breaker is provided. The utility model comprises a base, a cross beam, and at least an adjusting rod and a sensitive switch arranged opposite to the adjusting rod, as well as an operating arm arranged on the sensitive switch. The utility model is characterized in that the utility model further comprises a reinforcing mechanism used for reinforcing the sensitive switch, namely a reinforcement mechanism used for reinforcing the body case of the sensitive switch, and limiting the position of the operating arm of the sensitive switch at the same time, or a reinforcement mechanism used for reinforcing the body case of the sensitive switch, and limiting the operating arm of the sensitive switch and the adjusting rod at the same time; wherein the reinforcing mechanism is fixed in the body case, comprising at least one reinforcing piece fixed on the side face of the body case of the selected sensitive switch, while each sensitive switch and the base are respectively positioned at both sides of the cross beam, and each sensitive switch is positioned at the upper part of the corresponding adjusting rod. The utility model can be not filled with the silicone oil to fully overcome the oil leakage problem, which has the advantages of vibration resistant and is applied to the SF6 electric device.
Description
Technical field
The utility model relates to a kind of relay, relates in particular to a kind of SF of being applied in
6Vibration pointer type SF on (sulphur hexafluoride) electric equipment
6Gas density relay.
Background technology
SF
6Electric product has been widely used in power department, industrial and mining enterprises, has promoted the fast development of power industry.
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.
Generally adopt at present a kind of pointer SF of machinery
6Gas density relay is monitored SF
6Density is promptly worked as SF
6This relay can be reported to the police and locking when gas leakage took place electric product, can also show on-the-spot density value simultaneously.
This density monitor generally adopts single temperature-compensating sheet and hairspring type electric contact, help formula suction though increased magnetic, the reliable closure of docking point is helpful, but the difference of density value when also causing actual act and pointer show value, in addition when density is higher than set point, its movable contact is to move along with pointer, because the power of hairspring is very little, make magnetic help formula suction can not transfer too greatly, in case when density value had arrived setting operating value (report to the police or locking), signalling contact (reporting to the police or locking) had moved, if pointer in its vicinity at this moment, can produce vibration, signal is disconnected again, send misoperation.In addition, when contact (reporting to the police or locking) was closed, its closing force only depends on the small power of the hairspring of contact, helps formula power even add magnetic, and was also still very little, therefore extremely was afraid of to shake.In order to improve its vibration resistance, generally all be filled with silicone oil, but because on making, ubiquity leakage of oil problem.In case leakage of oil, the user has only replacing again, causes economic loss.
So, develop a kind of do not need oil-filled, but the good pointer SF of its performance
6Gas density relay is very important.
A kind of contact of developing now adopts the no oil type SF of sensitive switch
6Gas density relay, this SF
6The structure of gas density relay as shown in Figure 1 and Figure 2, it comprises SF6 gas connection 1, movement 2, housing 3, dial 4, pointer 5, Bourdon tube 6, temperature-compensating sheet 7, junction block 8, sensitive switch 91,92,93, printed circuit board 10, location-plate 11, fixed head 12, electric wire 13, adjusting rod 141,142,143, connecting rod 15, crossbeam 16, watch crystal 17, cover circle 18, pedestal 19 and SF
6Air shooter 20.Wherein, SF
6 Gas connection 1, junction block 8, watch crystal 17, cover circle 18 and pedestal 19 are separately fixed on the housing 3.Movement 2 and fixed head 12 are installed in respectively on the pedestal 19, and pointer 5 and dial 4 are separately fixed on the movement 2.One end of Bourdon tube 6 is welded on the pedestal 19 and is communicated with it, the other end is connected with an end of temperature-compensating sheet 7 by the end seat, the other end of temperature-compensating sheet 7 is connected with crossbeam 16, and an end of crossbeam 16 is connected with an end of connecting rod 15, and the other end of 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; its front end extends to the below of the end seat of the end that Bourdon tube 6 links to each other with temperature-compensating sheet 7; its function is: when the SF6 gas density drops to certain value; spacing Bourdon tube 6 moves 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.
Above-mentioned SF
6Though the sensitive switch that gas density relay adopted has certain advantage,, in use still there is following problem because its structure is unreasonable:
1, because this SF
6The width that gas density relay is arranged on the motion arm on each sensitive switch has only 4.1mm, when the judder of switch breaking-closing operating, be easy to cause switching manipulation arm dislocation, and adjusting rod is blocked or break away from the phenomenon of sensitive switch motion arm, can not guarantee system's reliably working.
2, because the width of the temperature-compensating sheet that this SF6 gas density relay is adopted has only 5.1mm, insufficient strength, when the judder of switch breaking-closing operating, be easy to cause the adjusting rod dislocation, and adjusting rod is blocked or break away from the phenomenon of sensitive switch motion arm, can not guarantee system's reliably working, be difficult to also accomplish that the actual act value is consistent with the pointer show value.
3, because this SF
6Gas density relay can cause the swing of sensitive switch motion arm when the judder of switch breaking-closing operating, be easy to cause the output of malfunction signal, can not guarantee system's reliably working.
4, because this SF
6Each sensitive switch in the gas density relay is installed in the below of each adjusting rod respectively, even is datum line with the crossbeam, and sensitive switch is in a side of crossbeam, and pedestal is also in the same side of this crossbeam.At SF
6Density just often, to the sensitive switch motion arm application of force, the sensitive switch motion arm is not in free state to adjusting rod, at this moment, when the judder of switch breaking-closing operating, because the swing of sensitive switch motion arm, also be easy to cause the output of malfunction signal, can not guarantee system's reliably working.
5, because less than 19mm, there is following problem in the length that this SF6 gas density relay is arranged on the motion arm on each sensitive switch:
First, the impulse stroke of the motion arm of sensitive switch is little, sensitive switch is fixed on the below of adjusting rod again, when non operating state, in temperature high season, the temperature-compensating sector-meeting opens, adjusting rod makes the sensitive switch motion arm be in the compacting state, at this moment to the sensitive switch motion arm application of force like this, when vibration, be easy to cause the sensitive switch motion arm to damage, can not guarantee system's reliably working, compensating plate also can be subjected to the bounce effect for a long time and be out of shape simultaneously, make the precision of relay adversely effected, and can not guarantee system's reliably working.
Second; the impulse stroke of the motion arm of sensitive switch is little; add because sensitive switch designs again below adjusting rod, for when not using, simultaneously again in the high place of temperature; in order to protect sensitive switch, protection crossbeam not to be damaged by pressure and to be out of shape; in order to keep the reliably working of whole system, just must be limited in Bourdon tube in certain scope simultaneously, and existing indication range can not be accomplished-0.1MPa; this can not show vacuum values to the inconvenience that the user brings use when vacuumizing as tonifying Qi.
The 3rd, the impulse stroke of the motion arm of sensitive switch is little, the working range of this relay (being the scope between initial value～maximum) little (only less than 0.5Mpa).
The 4th, the impulse stroke of the motion arm of sensitive switch is little, elements such as adjusting rod or compensating plate change slightly, will have a strong impact on the precision of density monitor.Simultaneously when debugging, also be difficult to precision transfer very accurate, promptly be difficult to make high-precision density monitor.
6, because this SF
6The sensitive switch motion arm that is adopted in the gas density relay is connected on the sensitive switch shell, because its shell is a working of plastics, its insufficient strength, when the judder of switch breaking-closing operating, be easy to cause the fracture of sensitive switch shell, cause the sensitive switch motion arm to come off, make the density monitor disabler.Also have adjusting rod and sensitive switch motion arm occurrence positions to misplace, and adjusting rod is blocked or break away from the phenomenon of sensitive switch motion arm, thereby can not guarantee system's reliably working.
In sum, be necessary to develop and a kind ofly do not want oil-filled and the good pointer SF of resistance to shock
6Gas density relay is to guarantee system's reliably working.
Summary of the invention
In order to solve the problems referred to above that prior art exists, the purpose of this utility model is to provide a kind of oil-filled, good vibration pointer type SF of resistance to shock that do not need
6Gas density relay is used for control and monitors airtight container SF
6The density of gas, and at SF
6The gas leakage situation that occurs in the electric equipment is in time sent alarm signal and block signal, for ensureing that electric power safety plays effect.
A kind of vibration pointer type SF provided by the utility model
6Gas density relay comprises SF
6The gas density relay housing, be arranged on the pedestal in this housing, movement, crossbeam, the temperature-compensating sheet, printed circuit board, at least one is fixed on the adjusting rod on the crossbeam, sensitive switch with each adjusting rod corresponding pairs setting, and the motion arm that on each sensitive switch, is respectively equipped with, it is characterized in that: it comprises that also one is used for reinforcing mechanisms that sensitive switch is strengthened, the i.e. reinforcing mechanisms that the sensitive switch shell is strengthened, or carry out spacing reinforcing mechanisms when the sensitive switch shell strengthened and to the sensitive switch motion arm, or carry out spacing reinforcing mechanisms when the sensitive switch shell strengthened and to the sensitive switch motion arm with to adjusting rod, this reinforcing mechanisms is fixed in the housing, comprise at least one reinforcement that is fixed on selected sensitive switch shell side, again: described each sensitive switch and pedestal lay respectively at the both sides of crossbeam, and each sensitive switch lays respectively at the top of adjusting rod corresponding with it, and the motion arm on each sensitive switch can contact with corresponding adjusting rod.
At above-mentioned vibration pointer type SF
6In the gas density relay, the motion arm front end on each sensitive switch and the effective width of adjusting rod contact site are 4.4-18mm.
At above-mentioned vibration pointer type SF
6In the gas density relay, the width of temperature-compensating sheet is 5.5-18mm.
At above-mentioned vibration pointer type SF
6In the gas density relay, the motion arm length on each sensitive switch is 21-50mm.
At above-mentioned vibration pointer type SF
6In the gas density relay, also comprise two baffle plates that are arranged on the crossbeam two ends, an end of every baffle plate is fixed on pedestal or movement or the housing, and the other end extends upward the end of retaining at crossbeam, and and crossbeam between leave the gap.
At above-mentioned vibration pointer type SF
6In the gas density relay, reinforcing mechanisms includes only a reinforcement, and this reinforcement is arranged on any side of arbitrary sensitive switch shell.
At above-mentioned vibration pointer type SF
6In the gas density relay, the length of reinforcement less than, be equal to or greater than the sensitive switch outer cover length and have and sensitive switch shell shape adapting.
At above-mentioned vibration pointer type SF
6In the gas density relay, reinforcing mechanisms is separately fixed at the side of the sensitive switch of preliminary election by several reinforcements, forms the adaptive reinforcing mechanisms of width with the sensitive switch shell.
At above-mentioned vibration pointer type SF
6In the gas density relay, reinforcing mechanisms is to be joined together by several reinforcements, forms incorporate reinforcing mechanisms.
At above-mentioned vibration pointer type SF
6In the gas density relay, sensitive switch and adjusting rod corresponding with it are 1 pair, 2 pairs, 3 pairs or 4 pairs.
The utility model vibration pointer type SF
6Gas density relay makes it compared with prior art owing to adopted above technical scheme, has following tangible advantage and characteristics:
1, owing to adopted wide temperature-compensating sheet (width is 5.5-18mm), when the switch divide-shut brake produces vibration, can prevent that crossbeam from axially producing undue displacement along it, and then prevent that adjusting rod from blocking or breaking away from the phenomenon of sensitive switch, guarantee system's reliably working; After the temperature-compensating sheet is widened, just not yielding, can accomplish that also contact actual act value is the same substantially with the pointer show value.
2, owing to adopted the sensitive switch motion arm widened (front end contact the effective width at position be 4.4-18mm) with adjusting rod, when the switch divide-shut brake produces vibration, even crossbeam has axially produced certain displacement along it, because sensitive switch motion arm broad, can prevent that equally adjusting rod from blocking or breaking away from the phenomenon of sensitive switch, guarantee system's reliably working.
3, owing to respectively increased a baffle plate at the two ends of crossbeam, when the switch divide-shut brake produces vibration, can prevent that crossbeam from axially producing undue displacement along it, even crossbeam axially is subjected to displacement along it, because this displacement is fixed in the controllable scope at one by the baffle plate retaining, can prevent that adjusting rod from blocking or breaking away from the phenomenon of sensitive switch, guarantee system's reliably working.
4, because sensitive switch is designed above adjusting rod.In SF6 density just often, the sensitive switch motion arm is in stress, at this moment, when the judder of switch breaking-closing operating, can not cause the output of malfunction signal, can guarantee system's reliably working.Work as SF
6When gas pressure (density) descends, or when not inflating (when not using), adjusting rod just can not run into sensitive switch, and then just can not cause deterioration in accuracy.
5, because this SF
6The length that gas density relay is arranged on the motion arm on each sensitive switch is 21～50mm, the impulse stroke of the motion arm of sensitive switch is big, add because sensitive switch designs again above adjusting rod, the below of adjusting rod also stops without any thing like this, indication range is accomplished-0.1MPa, this brings the convenience of use to the user, just can show its vacuum values when vacuumizing as tonifying Qi.
6, because this SF
6The length that gas density relay is arranged on the motion arm on each sensitive switch is 21～50mm, and the impulse stroke of the motion arm of sensitive switch is big, so the working range of this relay is big, can accomplish 1.0MPa.
7, because this SF
6The length that gas density relay is arranged on the motion arm on each sensitive switch is 21～50mm, and the impulse stroke of the motion arm of sensitive switch is big, and elements such as adjusting rod or compensating plate change slightly, just can muchly not influence the precision of density monitor.Simultaneously when debugging, also be easy to precision transfer very accurate, be easy to make high-precision density monitor.
8, special owing to increased sensitive switch shell reinforcement, when the judder of switch breaking-closing operating, can avoid the fracture of sensitive switch shell, avoid the sensitive switch motion arm to come off, also can also avoid the sensitive switch motion arm to produce and wave, and then avoid causing sensitive switch motion arm and adjusting rod dislocation, and make adjusting rod can not block or break away from the phenomenon of sensitive switch motion arm, thereby can improve the resistance to shock of relay greatly, guarantee system's reliably working.
Description of drawings
Below, the utility model is described in further detail in conjunction with the accompanying drawings:
Fig. 1 is prior art pointer-type SF
6The structural representation of gas density relay;
Fig. 2 is the partial side view of structure shown in Figure 1;
Fig. 3 is the utility model vibration pointer type SF
6The structural representation of gas density relay;
Fig. 4 is the partial side view of structure shown in Figure 3.
Fig. 5 (a)～(c) is front view, end view and the upward view of an example structure of the sensitive switch reinforcing mechanisms in the utility model;
Fig. 6 (a)～(c) is front view, end view and the upward view of an example structure of the sensitive switch reinforcing mechanisms in the utility model;
Fig. 7 (a)～(c) is front view, end view and the upward view of an example structure of the sensitive switch reinforcing mechanisms in the utility model.
Embodiment
Sensitive switch and adjusting rod corresponding with it can have 1 pair, 2 pairs, 3 pairs or 4 pairs, and present embodiment is 3 pairs.
Referring to Fig. 3～4, the utility model vibration pointer type SF
6Gas density relay is mainly by joint 1, movement 2, watchcase 3, dial 4, pointer 5, Bourdon tube 6, wide temperature-compensating sheet 7 ' (width 5.5-18mm), junction block 8, three sensitive switches 91,92,93, printed circuit board 10, location-plate 11, fixed head 12, electric wire 13, three adjusting rods 141,142,143, connecting rod 15, crossbeam 16, watch crystal 17, cover circle 18, two baffle plates 21,22, pedestal 19, deferent 20, sensitive switch reinforcing mechanisms 23, end seat 24 compositions such as grade.Wherein, joint 1 is fixed on the watchcase 3, and movement 2 is fixed on the pedestal 19.One end of Bourdon tube 6 is welded on the pedestal 19 and is communicated with it, and the other end is connected with an end of wide temperature-compensating sheet 7 ' by end 24, and the other end of wide temperature-compensating sheet 7 ' is connected with crossbeam 16.Be fixed with three adjusting rods 141,142,143 on the crossbeam 16.Crossbeam 16 is connected with connecting rod 15 again, and connecting rod 15 is connected with movement 2 again.Three sensitive switches 91,92,93 are separately fixed on the printed circuit board 10, printed circuit board 10 is fixed on the fixed head 12, fixed head 12 is installed in again on the pedestal 19, and three sensitive switches 91,92,93 correspondences are arranged on each adjusting rod 141,142,143 top, wherein, sensitive switch 91 is fixed on the top of adjusting rod 141, sensitive switch 92 is fixed on the top of adjusting rod 142, sensitive switch 93 is fixed on the top of adjusting rod 143, each sensitive switch lower end is connected with motion arm 911 ' respectively, 921 ', 931 ' (effective width of the front end of each motion arm and adjusting rod contact site is 4.4-18mm, and motion arm length (being its length beyond the sensitive switch housing) is 21-50mm).Location-plate 11 is fixed on the movement 2, and pointer 5 and dial 4 are separately fixed on the movement 2.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.One end of deferent 20 is connected with pedestal 19, and positiver sealing; The other end of deferent 20 is connected with joint 1, and positiver sealing.One end of baffle plate 21 is fixed on the pedestal 19 (or movement or support or housing), and the other end extends upward the end of retaining at crossbeam 16, but and leave the gap between the crossbeam 16; One end of baffle plate 22 also is fixed on the pedestal 19, and the other end also extends upward the other end of retaining at crossbeam 16, but and also leaves the gap between the crossbeam 16.The effect of baffle plate 21 and baffle plate 22 is, when the switch divide-shut brake produces vibration, prevent that crossbeam 16 from axially producing undue displacement along it, even crossbeam 16 axially is subjected to displacement along it, also can be fixed in the controllable scope at one by baffle plate 21 and 22 retainings, prevent that adjusting rod 141,142,143 from blocking or breaking away from the phenomenon of sensitive switch 91,92,93, guarantee system's reliably working.
Sensitive switch reinforcing mechanisms 23 is fixed on enclosure interior, and present embodiment just is fixed on the sensitive switch.Wherein the form of sensitive switch reinforcing mechanisms 23 is unrestricted, can variation.
Shown in Fig. 5 (a)～(c), reinforcing mechanisms 23 joins the side that (or split) is fixed on each sensitive switch together by 4 reinforcements 231,232,233,234, form adaptive with the width of switch housing respectively reinforcing mechanisms, only the shell to each sensitive switch plays good booster action.When the judder of switch breaking-closing operating, can avoid the fracture of sensitive switch shell, avoid the sensitive switch motion arm to come off, thereby can improve the resistance to shock of relay greatly, guarantee system's reliably working.
Shown in Fig. 6 (a)～(c), reinforcing mechanisms joins the side that (or split) is fixed on each sensitive switch together by 4 reinforcements 231,232,233,234, form adaptive with the width of switch housing respectively reinforcing mechanisms, not only the shell to each sensitive switch plays good booster action, and can also play position-limiting action to the motion arm of sensitive switch.When the judder of switch breaking-closing operating, can avoid the fracture of sensitive switch shell, avoid the sensitive switch motion arm to come off, also can also avoid the sensitive switch motion arm to produce waves, and then avoid causing switching manipulation arm and adjusting rod to misplace, and make adjusting rod can not block or break away from the phenomenon of sensitive switch motion arm, thereby can improve the resistance to shock of relay greatly, guarantee system's reliably working.
Shown in Fig. 7 (a)～(c), reinforcing mechanisms joins the side that (or split) is fixed on each sensitive switch together by 4 reinforcements 231,232,233,234, form adaptive with the width of this sensitive switch shell respectively reinforcing mechanisms, not only the shell to this sensitive switch plays good booster action, and can also play position-limiting action, and can also play position-limiting action to this corresponding adjusting rod to the motion arm of this sensitive switch.When the judder of switch breaking-closing operating, can avoid the fracture of sensitive switch shell, avoid the sensitive switch motion arm to come off, also can also avoid the sensitive switch motion arm to produce waves, and then avoid causing switching manipulation arm and adjusting rod to misplace, and make adjusting rod can not block or break away from the phenomenon of sensitive switch motion arm, thereby can improve the resistance to shock of relay greatly, guarantee system's reliably working.
The utility model vibration pointer type SF
6The action principle of gas density relay is based on flexible member Bourdon tube 6, utilizes wide temperature-compensating sheet 7 ' that the pressure and temperature that changes is revised, reaction SF
6The variation of gas density.Promptly at measured medium SF
6Under the pressure effect of gas, because the effect of wide temperature-compensating sheet 7 ' has been arranged, the variation of its density value, force value also changes accordingly, force the end of Bourdon tube 6 to produce corresponding strain-displacement,, pass to movement 2 by means of wide 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 4.If leaked gas, its density value drops to a certain degree (reach and report to the police or the locking value), Bourdon tube 6 produces accordingly to bottom offset, by wide temperature-compensating sheet 7 ', make crossbeam 16 to bottom offset, the adjusting rod 141,142,143 on the crossbeam 16 is just gradually from corresponding sensitive switch 91,92,93, when arriving to a certain degree, corresponding sensitive switch 91,92,93 contacts are just connected, and send corresponding signal (reporting to the police or locking), reach 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, Bourdon tube 6 also produces accordingly to top offset, by wide temperature-compensating sheet 7 ', makes crossbeam 16 to top offset, adjusting rod 141,142,143 on the crossbeam 16 is just to top offset, just promote corresponding sensitive switch 91,92,93, its contact just disconnects, and signal (reporting to the police or locking) is just removed.
Described sensitive switch and adjusting rod are not limited to three, can also be one, two or four.
In sum, vibration pointer type SF of the present utility model
6Gas density relay is owing to increased area with the contacted sensitive switch motion arm of adjusting rod, the length of sensitive switch motion arm has extended, the top of sensitive switch (91,92,93) design in adjusting rod (141,142,143), add baffle plate 21,22 at the crossbeam two ends, at the sensitive switch shell sensitive switch reinforcing mechanisms is set, temperature-compensating sheet 7 ' is widened, through handling like this, just have extraordinary performance, reach: A, can accomplish that contact actual act value is very consistent with the pointer show value; B, improve the resistance to shock of density monitor greatly, adjusting rod just can not block or break away from the sensitive switch phenomenon, can not block pointer yet or cause control system to lose efficacy; The vibration of C, pointer is also little to the sensitive switch influence of control section; D, can not cause the output of error signal; E, work as SF
6When gas pressure (density) descends, or when not inflating (when not using), adjusting rod also can not be run into the bottom of sensitive switch, and the below of adjusting rod also stops without any thing, so just can not cause the distortion of temperature-compensating sheet and crossbeam, and then just can not cause deterioration in accuracy; F, can avoid sensitive switch shell fracture, avoid the sensitive switch motion arm to come off, guarantee system's reliably working; G, just indication range is accomplished-0.1MPa, this brings the convenience of use to the user, just can show its vacuum values when vacuumizing as tonifying Qi; The working range of H, this relay is big, can accomplish 1.0MPa; I, simultaneously when debugging, also be easy to precision transfer very accurate, be easy to make high-precision density monitor; J, simultaneously its stability is also better.So just improved this pointer SF greatly
6The resistance to shock of gas density relay and precision property are a kind of genuine vibration resistance pointer-type SF
6Gas density relay.Have the advantage of not being afraid of vibration, can not fill silicone oil, overcome the leakage of oil problem fully, can be applied in SF well
6On the electric equipment.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.Form as the sensitive switch reinforcing mechanisms can be versatile and flexible.
Claims (10)
1, a kind of vibration pointer type SF
6Gas density relay comprises SF
6The gas density relay housing, be arranged on pedestal in this housing, movement, crossbeam, temperature-compensating sheet, printed circuit board, sensitive switch that at least one is fixed on adjusting rod on the crossbeam, is provided with each adjusting rod corresponding pairs, and the motion arm that on each sensitive switch, is respectively equipped with, it is characterized in that:
It comprises that also one is used for reinforcing mechanisms that sensitive switch is strengthened, the i.e. reinforcing mechanisms that the sensitive switch shell is strengthened, or carry out spacing reinforcing mechanisms when the sensitive switch shell strengthened and to the sensitive switch motion arm, or carry out spacing reinforcing mechanisms when the sensitive switch shell strengthened and to the sensitive switch motion arm with to adjusting rod, this reinforcing mechanisms is fixed in the housing, comprise at least one reinforcement that is fixed on selected sensitive switch shell side, again:
Described each sensitive switch and pedestal lay respectively at the both sides of crossbeam, and each sensitive switch lays respectively at the top of adjusting rod corresponding with it, and the motion arm on each sensitive switch can contact with corresponding adjusting rod.
2, vibration pointer type SF as claimed in claim 1
6Gas density relay is characterized in that: the motion arm front end on described each sensitive switch and the effective width of adjusting rod contact site are 4.4-18mm.
3, vibration pointer type SF as claimed in claim 1 or 2
6Gas density relay is characterized in that: the width of described temperature-compensating sheet is 5.5-18mm.
4, vibration pointer type SF as claimed in claim 1
6Gas density relay is characterized in that: the motion arm length on described each sensitive switch is 21-50mm.
5, vibration pointer type SF as claimed in claim 1
6Gas density relay is characterized in that: also comprise two baffle plates that are arranged on the crossbeam two ends, an end of every baffle plate is fixed on pedestal or movement or the housing, and the other end extends upward the end of retaining at crossbeam, and and crossbeam between leave the gap.
6, vibration pointer type SF as claimed in claim 1
6Gas density relay is characterized in that: described reinforcing mechanisms includes only a reinforcement, and this reinforcement is arranged on any side of arbitrary sensitive switch shell.
7, vibration pointer type SF as claimed in claim 1
6Gas density relay is characterized in that: the length of described reinforcement less than, be equal to or greater than the sensitive switch outer cover length and have and sensitive switch shell shape adapting.
8, vibration pointer type SF6 gas density relay according to claim 1, it is characterized in that: described reinforcing mechanisms is separately fixed at the side of the sensitive switch of preliminary election by several reinforcements, forms the adaptive reinforcing mechanisms of width with the sensitive switch shell.
9, vibration pointer type SF6 gas density relay according to claim 8, it is characterized in that: described reinforcing mechanisms is to be joined together by several reinforcements, forms incorporate reinforcing mechanisms.
10, vibration pointer type SF as claimed in claim 1
6Gas density relay is characterized in that, described sensitive switch and adjusting rod corresponding with it are 1 pair, 2 pairs, 3 pairs or 4 pairs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620048369 CN200990339Y (en) | 2006-11-30 | 2006-11-30 | Antivibrating pointer type SF6 gas density relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620048369 CN200990339Y (en) | 2006-11-30 | 2006-11-30 | Antivibrating pointer type SF6 gas density relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200990339Y true CN200990339Y (en) | 2007-12-12 |
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ID=38941372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620048369 Expired - Lifetime CN200990339Y (en) | 2006-11-30 | 2006-11-30 | Antivibrating pointer type SF6 gas density relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200990339Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937045A (en) * | 2010-09-28 | 2011-01-05 | 达州电业局 | Junction performance tester of novel SF6 gas density relay |
| CN101192484B (en) * | 2006-11-30 | 2012-01-25 | 苏丽芳 | Vibration-resisting type pointer type SF6 gas density relay |
-
2006
- 2006-11-30 CN CN 200620048369 patent/CN200990339Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101192484B (en) * | 2006-11-30 | 2012-01-25 | 苏丽芳 | Vibration-resisting type pointer type SF6 gas density relay |
| CN101937045A (en) * | 2010-09-28 | 2011-01-05 | 达州电业局 | Junction performance tester of novel SF6 gas density relay |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20071212 Effective date of abandoning: 20061130 |