CN204988512U - Thermometer control mechanism for transformer - Google Patents
Thermometer control mechanism for transformer Download PDFInfo
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- CN204988512U CN204988512U CN201520532035.XU CN201520532035U CN204988512U CN 204988512 U CN204988512 U CN 204988512U CN 201520532035 U CN201520532035 U CN 201520532035U CN 204988512 U CN204988512 U CN 204988512U
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- thermometer
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- pointer
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Abstract
The utility model provides a thermometer control mechanism for transformer, which comprises a housin, the cap, still set for the mechanism including the rear -mounted switch that sets up in the casing, rear -mounted switch is set for the mechanism and is included the bottom plate, the center pin, the subassembly is set for to at least one switch, the switch is set for the subassembly and is included the switching regulator knob, drive gear and switch seat, the one end of center pin is fixed on the bottom plate, the other end and the interior bottom surface fixed connection of casing of center pin, drive gear's one end is fixed on the bottom plate and can be rotated on the bottom plate, the switching regulator knob passes casing bottom and drive gear's the other end. The utility model discloses the precision is high, and installation error is little, can thoroughly solve because of after opening the cap and setting for control switch, closes the approximately improper seepage that causes, and the improper leakage problem who arouses of the highest pointer installation.
Description
Technical field
The utility model relates to a kind of transformer mechanism, refers in particular to a kind of thermometer for transformer control gear.
Background technology
Thermometer for transformer is mainly used in (comprising oil surface temperature meter and winding temperature gage) measurement of temperature of oil in transformer (winding temperature); the change of foundation temperature simultaneously provides and controls contact point signal accordingly; start and stop cooling system, warning and trip system, thus play the function protecting transformer normally to run.The control contact point signal of thermometer for transformer adopts microswitch to provide, and microswitch is all arranged on thermometer inside, and the adjustment of microswitch operating point need be opened thermometer cap and be carried out; Due to the difference of the performance of transformer own, control contact set point needed for it is not identical, therefore the control contact factory setting point that thermometer factory provides can not meet the demands, scene setting need be carried out, and the personnel that set are comparatively heterogeneous, carry out easily causing damage to thermometer in the process set opening cap, in closing lid process, cause cap that caused seepage not in place is installed.
Thermometer for transformer requires the deixis with historical high temperature, this function is realized by the highest pointer be arranged on cap, traditional structure installs the highest pointer and hand-reset mechanism thereof at cap form center drilling, this structure should ensure sealing, need again to ensure that the highest pointer can the reset of easy and flexible, therefore element precision require and matching requirements higher, easily cause breakthrough in reality.
Utility model content
The problem of seepage is easily there is in order to solve thermometer for transformer control gear, the utility model proposes a kind of thermometer for transformer control gear, adopt the structure from the setting of thermometer housing back adjustment switch, precision is high, alignment error is little, thoroughly can solve leakage problems.
The technical scheme that the utility model adopts is: a kind of thermometer for transformer control gear, comprise housing, there is the chart board of indicating value pointer, cap, also comprise the rear-mounted switch set mechanism be arranged in housing, described rear-mounted switch set mechanism comprises base plate, central shaft, at least one switch assignment component, described switch assignment component comprises switch-mode regulation knob, driven wheel and switch base, one end of described central shaft is fixed on base plate, one end of base plate is fixedly connected with inner walls, one end of described driven wheel is fixed on base plate also can rotate on base plate, described switch-mode regulation knob passes the other end of housing bottom and driven wheel, chart board two ends connect inner walls respectively, switch base.Base plate is used for fixed center axis, driven wheel, and is fixed on by sleeve mechanism on thermometer housing; Central shaft is fixed on base plate, for installing switch base; Switch-mode regulation knob is inserted in driven wheel regulating tank, with Convenient switch setting by manually carrying out.Switch set mechanism is rearmounted, and precision is high, and alignment error is little, can thoroughly solve because of after opening cap setup control switch, the seepage that closing lid is improper caused.
As preferably, described switch base comprises bearing support and is fixed on switch setting indicating head, microswitch installation cavity and the transmission gear on bearing support, switch setting indicating head is connected with the switch setting pointer be suspended from above chart board, microswitch is mounted with in microswitch installation cavity, the center of transmission gear has circular hole, outer ring is tooth, transmission gear connects on center shaft by circle hole sleeve, and the tooth of transmission gear outer ring coordinates with the tooth of driven wheel and abuts, and switch base can around central axis.Switch base flexible member is installed on center shaft, can produce rotation displacement with central shaft; It matches with driven wheel containing gear, to meet the demand of switch setting; Switch base is installed on center shaft, and alignment error is only the mismatch error of itself and central shaft, without other alignment error, greatly can improve the specification error of switch; Cavity is for installing microswitch, and pointer is used to indicate switch set point.
As preferably, described bearing support is horizontal U-shaped, and switch setting indicating head is connected to the extension of side, U-shaped bottom, and microswitch installation cavity, transmission gear lay respectively at U-shaped two ends.
As further preferred, described bearing support, switch setting indicating head, microswitch installation cavity are formed in one.The integrated Mould Machining part of switch base, its precision can be ensured.
As preferably, the quantity of described switch assignment component is 1 to 3.When having multiple switch assignment component, adopt same color, to show differentiation with the switch instruction pointer in group and switch-mode regulation knob.
As preferably, when described switch base is more than one, the transmission gear of each switch base is uniformly distributed in vertical space.
The demand that sleeve mechanism sets to realize Multi-Switch by the switch base and driven wheel being in different high low layer.
As preferably, one end of described driven wheel is connected by flexible member with base plate.
As preferably, the other end of described driven wheel has regulating tank, described switch-mode regulation knob with driven wheel coupling part and regulating tank suitable.
Ordering about moving gear one end with elastic element is arranged on base plate, can produce rotation displacement with base plate, with transmission gear on driven wheel, the other end has the regulating tank of switch adjustment, such as containing the interior hexagonal of flat recess, the rotation by gear drive adjustment switch base realizes switch setting.
As preferably, described cap comprises cap main body, the highest pointer, permanent-magnet steel and reset magnet, the highest described pointer is connected with the central screw of cap main body, described permanent-magnet steel is fixedly mounted on the tail end of the highest pointer, and described reset magnet to be positioned at outside cap main body and to be connected with permanent-magnet steel magnetic.The centre of cap main body is embedded with the fixed orifice of the highest pointer installation, and the highest pointer is arranged in fixed orifice by pointer nail and nut, and permanent-magnet steel is embedded in the highest pointer tail end to increase the highest pointer reset torsion, and the highest whole pointer is transient equilibrium.Whole cap is except being all-sealed structure with housing engaging portion, and available fluid sealant seals cap and housing cooperation place completely, and the seepage finally stopping thermometer cap portion may.In addition, reset magnet can use magnet steel, supports the use with permanent magnet, external for inhaling or pushing away the embedded permanent-magnet steel of the highest pointer.
As preferably, described cap main body has transparent form.Cap main body has transparent form, can observe total indicator reading from housing through transparent form.
The beneficial effects of the utility model are: precision is high, and alignment error is little, can thoroughly solve because of after opening cap setup control switch, the seepage that closing lid is improper caused; And the leakage problems caused by the highest pointer Rig up error.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the front elevation of figure plate portion in Fig. 1;
Fig. 3 is the structural representation of rear-mounted switch set mechanism in the utility model embodiment 2;
Fig. 4 is the upward view of Fig. 3.
In figure, 1-chart board, 2-base plate, 3-housing, 4-switch-mode regulation knob, 5-driven wheel, 6-central shaft, 7-switch base, 8-indicating value instruction pointer, 10-switch setting pointer, 11-cap main body, the highest pointer of 12-, 13-nut, 14-pointer is followed closely, 15-reset magnet, 16-permanent-magnet steel.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment 1
As shown in Figure 1, a kind of thermometer for transformer control gear, comprises housing 3, has the chart board 1 of indicating value pointer 8, cap and is arranged at the rear-mounted switch set mechanism in housing.Wherein, rear-mounted switch set mechanism comprises base plate 2, central shaft 6 and a switch assignment component, switch assignment component comprises switch-mode regulation knob 4, driven wheel 5 and switch base 7, one end of central shaft is fixed on base plate, the other end of central shaft is fixedly connected with housing inner bottom surface, one end of driven wheel is fixed on base plate also can rotate on base plate, and switch-mode regulation knob passes the other end of housing bottom and driven wheel.
Switch base comprises bearing support and is fixed on switch setting indicating head, microswitch installation cavity and the transmission gear on bearing support.Bearing support is horizontal U-shaped, and switch setting indicating head is connected to the extension of side, U-shaped bottom, and microswitch installation cavity, transmission gear lay respectively at U-shaped two ends.Switch setting indicating head is connected with the switch setting pointer 10 be suspended from above chart board, microswitch is mounted with in microswitch installation cavity, the center of transmission gear has circular hole, outer ring is tooth, transmission gear connects on center shaft by circle hole sleeve, the tooth of transmission gear outer ring coordinates with the tooth of driven wheel and abuts, and switch base can around central axis.
The integrated Mould Machining part of switch base, bearing support, switch setting indicating head, microswitch installation cavity are formed in one, thus precision can be ensured.
Base plate is used for fixed center axis, driven wheel, and is fixed on housing by sleeve mechanism; Central shaft is fixed on base plate, for installing switch base; Switch-mode regulation knob is inserted in driven wheel regulating tank, with Convenient switch setting by manually carrying out; Switch base flexible member is installed on center shaft, can produce rotation displacement with central shaft; The gear of switch base matches with driven wheel, to meet the demand of switch setting; Switch base is installed on center shaft, and alignment error is only the mismatch error of itself and central shaft, without other alignment error, greatly can improve the specification error of switch; Cavity is for installing microswitch, and pointer is used to indicate switch set point.As shown in Figure 2, the switch setting pointer of switch base and the scale of the indicating value instruction of chart board corresponding to pointer are on same chart board.
Driven wheel is with transmission gear, and one end of driven wheel is connected by flexible member with base plate, can produce rotation displacement with base plate; The other end of driven wheel has the regulating tank of switch adjustment, and such as containing the interior hexagonal of flat recess, the rotation by gear drive adjustment switch base realizes switch setting.
During use, rotate by hand to be inserted into and driven wheel sets the switch-mode regulation knob of pointer same color with switch, interior hex slot coordinates transmission, the driven wheel be arranged on base plate is produced rotate, coordinated by the gear on the gear on driven wheel and integral switch seat, make the switch base installed on center shaft be that the center of circle produces rotation with central shaft.Central shaft is coaxial with housing, and chart board is fixed on housing and coaxial, ensure that center of rotation and the chart board concentric of switch base, and namely switch setting pointer completes switch set along chart board axis rotation.The implementation process of above switch setting, also can extract switch-mode regulation knob from driven wheel, with interior hexagonal or straight screwdriver, inserts in the fluting of driven wheel tail end and carries out.Wherein, switch assignment component only has one group, and switch setting pointer, driven wheel and switch-mode regulation knob all adopt same color.Whole switch assignment procedure is without the need to opening cap, and switch setting indicators turn is steady.
Cap comprises cap main body 11, the highest pointer 12, permanent-magnet steel 16 and reset magnet 15.Wherein cap main body adopts transparent material die casting to form, and matches with housing, installs fixing complete component, is used for installing the highest pointer as main body simultaneously; Cap main body there is transparent form, can from housing through transparent form observe total indicator reading; The centre of cap main body is embedded with the fixed orifice of the highest pointer installation, and the highest pointer is fixedly connected with the fixed orifice at cap center with pointer nail 14 by the nut 13 be inlaid with in cap main body, and free to rotate; Permanent-magnet steel is embedded in the highest pointer tail end to increase the highest pointer reset torsion.Whole cap is except being all-sealed structure with housing engaging portion, and available fluid sealant seals cap and housing cooperation place completely, and the seepage finally stopping thermometer cap portion may.Reset magnet external for inhale or push away the highest pointer, for permanent-magnet steel match reset the highest pointer.Reset magnet can be reset magnet steel or common magnet.
The highest pointer that permanent-magnet steel is housed is dynamic equilibrium state, free to rotate and to follow thermometer pointer up, be parked in its reach high maximum temperature position, complete the function of the maximum temperature in instruction phases-time.When the highest pointer being resetted, aim at permanent-magnet steel position by reset magnet, utilize magnet steel heteropole attracting, the principle of homopolar-repulsion, draws the highest pointer or pushed home, completes the highest pointer reset work.Under running state of transformer, the highest pointer of reset in the remote safety of insulation rod front end fixed reset magnet can be adopted with the highest pointer resetting structure of this structure.
Embodiment 2
In embodiment 2, first switch base 7A, the first driven wheel 5A, the first switch-mode regulation knob 4A, second switch seat 7B, the second driven wheel 5B, second switch adjusting knob 4B, 3rd switch base 7C, the 3rd driven wheel 5C, the 3rd switch-mode regulation knob 4C, form 3 groups of switch assignment components respectively, as shown in Figure 3 and Figure 4, other are identical with in embodiment 1.Owing to there being 3 groups of switch assignment components, the transmission gear of 3 switch bases is uniformly distributed in vertical space; Switch setting pointer in each group and switch-mode regulation knob adopt same color, to show differentiation.
Sleeve mechanism, by different high and low layered switch base and the driven wheel and the switch-mode regulation knob that are arranged on base plate diverse location, can have multiple switch to carry out rearmounted setting by this structure.
Above embodiment is only and technological thought of the present utility model is described; protection domain of the present utility model can not be limited with this; every technological thought according to the utility model proposes, any change that technical scheme basis is done, all falls within protection domain of the present utility model.
Claims (9)
1. a thermometer for transformer control gear, comprise housing, there is the chart board of indicating value pointer, cap, it is characterized in that: also comprise the rear-mounted switch set mechanism be arranged in housing, described rear-mounted switch set mechanism comprises base plate, central shaft, at least one switch assignment component, described switch assignment component comprises switch-mode regulation knob, driven wheel and switch base, one end of described central shaft is fixed on base plate, one end of base plate is fixedly connected with inner walls, one end of described driven wheel is fixed on base plate also can rotate on base plate, described switch-mode regulation knob passes the other end of housing bottom and driven wheel, chart board two ends connect inner walls respectively, switch base.
2. thermometer for transformer control gear according to claim 1, it is characterized in that: described switch base comprises bearing support and is fixed on switch setting indicating head, microswitch installation cavity and the transmission gear on bearing support, switch setting indicating head is connected with the switch setting pointer be suspended from above chart board, microswitch is mounted with in microswitch installation cavity, the center of transmission gear has circular hole, outer ring is tooth, transmission gear connects on center shaft by circle hole sleeve, and the tooth of transmission gear outer ring coordinates with the tooth of driven wheel and abuts.
3. thermometer for transformer control gear according to claim 2, it is characterized in that: described bearing support is horizontal U-shaped, switch setting indicating head is connected to the extension of side, U-shaped bottom, and microswitch installation cavity, transmission gear lay respectively at U-shaped two ends.
4. the thermometer for transformer control gear according to Claims 2 or 3, is characterized in that: described bearing support, switch setting indicating head, microswitch installation cavity are formed in one.
5. thermometer for transformer control gear according to claim 2, it is characterized in that: when described switch base is more than one, the transmission gear of each switch base is uniformly distributed in vertical space.
6. thermometer for transformer control gear according to claim 1, is characterized in that: one end of described driven wheel is connected by flexible member with base plate.
7. thermometer for transformer control gear according to claim 1, is characterized in that: the other end of described driven wheel has regulating tank, described switch-mode regulation knob with driven wheel coupling part and regulating tank suitable.
8. thermometer for transformer control gear according to claim 1, it is characterized in that: described cap comprises cap main body, the highest pointer, permanent-magnet steel and reset magnet, the highest described pointer is connected with the central screw of cap main body, described permanent-magnet steel is fixedly mounted on the tail end of the highest pointer, and described reset magnet to be positioned at outside cap main body and to be connected with permanent-magnet steel magnetic.
9. thermometer for transformer control gear according to claim 8, is characterized in that: described cap main body has transparent form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520532035.XU CN204988512U (en) | 2015-07-22 | 2015-07-22 | Thermometer control mechanism for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520532035.XU CN204988512U (en) | 2015-07-22 | 2015-07-22 | Thermometer control mechanism for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204988512U true CN204988512U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520532035.XU Active CN204988512U (en) | 2015-07-22 | 2015-07-22 | Thermometer control mechanism for transformer |
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| Country | Link |
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| CN (1) | CN204988512U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949764A (en) * | 2015-07-22 | 2015-09-30 | 华军 | Control mechanism of thermometer for transformer |
| CN111855006A (en) * | 2020-08-08 | 2020-10-30 | 苏州半山智能科技有限公司 | Self-determination temperature type sensor based on Curie point sensitive material |
-
2015
- 2015-07-22 CN CN201520532035.XU patent/CN204988512U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949764A (en) * | 2015-07-22 | 2015-09-30 | 华军 | Control mechanism of thermometer for transformer |
| CN111855006A (en) * | 2020-08-08 | 2020-10-30 | 苏州半山智能科技有限公司 | Self-determination temperature type sensor based on Curie point sensitive material |
| CN111855006B (en) * | 2020-08-08 | 2022-02-11 | 苏州半山智能科技有限公司 | Self-determination temperature type sensor based on Curie point sensitive material |
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| C14 | Grant of patent or utility model | ||
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