CN101487741B - Temperature over-range indicator - Google Patents
Temperature over-range indicator Download PDFInfo
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- CN101487741B CN101487741B CN2008101401668A CN200810140166A CN101487741B CN 101487741 B CN101487741 B CN 101487741B CN 2008101401668 A CN2008101401668 A CN 2008101401668A CN 200810140166 A CN200810140166 A CN 200810140166A CN 101487741 B CN101487741 B CN 101487741B
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- temperature
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- indication
- spring
- loam cake
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Abstract
The invention discloses an over-temperature indicator, belonging to the technical field of temperature measurement. The invention is characterized in that the indicator comprises an indicating upper cover and a base, wherein the indicating upper cover is hollow and nested on the base in sliding fit; the indicating upper cover and the upper part of the base form a chamber in which a spring and a temperature sensing device are arranged, the indicating upper cover is also provided with a stop screw which is matched with a locating notch, an arresting indicating color is coated on the middle upper part of the outer surface of the base; the spring is compressed once the temperature is lower than an alarm temperature; the temperature sensing device changes and the spring bounces for alarming once the temperature reaches the alarm temperature. The invention is simple in structure, convenient in use and low in cost as well as can operate stably and reliably for a long time.
Description
Technical field
The invention belongs to the temperature measurement technology field, be specifically related to a kind of temperature over-range indicator.
Background technology
The temperature of many equipment equipment in operational process itself all will change, and these situations of change have often reflected the ruuning situation of equipment.The bearing of equipment for example, motor, if the temperature that the joint of transmission line of electricity etc. are located than the unexpected rising of normal operating temperature, then often devices illustrated breaks down at this moment or has potential faults, has influence on the security of operation and the serviceable life of equipment.If can monitor the temperature at above-mentioned position in real time, make the indication of reporting to the police when rising is overheated suddenly in temperature, just can allow the plant maintenance personnel in time find, and make corresponding processing, just can avoid the generation of some serious equipment breakdowns to prevent the equipment failure expanded range.
The device temperature monitoring mode of prior art mainly contains with infrared measurement of temperature equipment or other temperature measuring equipment and carries out regularly or irregularly patrolling and examining, and special temperature online detection system is installed.First method often can not in time pinpoint the problems, and infrared measurement of temperature equipment is subjected to environmental influence to cause measuring error easily owing to be discontinuous measurement.Though second method can detect by real-time high-precision, cost is higher.
Publication number is that the Chinese patent of CN201060059 discloses the out-of-limit indication bolt of a kind of temperature, constitute by shell and the inner core that is positioned at enclosure, wherein inner tank theca is provided with groove, be fixed with the butterfly shaped dual metal sheet of a thick middle, thin edge in this groove, contact the formation screens by extruding between the edge of this butterfly shaped dual metal sheet and the outer casing inner wall.The present invention is installed in the transmission line wire joint, can monitor the temperature of transmission line wire in real time, has the accuracy of detection height, and monitoring location is accurately concrete, advantages such as convenient maintenance and replacing.Its weak point is: said apparatus can only be made the indication action at fixing preset temperature, and the user in use can not adjust and move and postpone greatlyyer, and precision is lower.In addition, this device can only be reported to the police once, is needing under the situation of early warning, is not suitable for adopting.
Summary of the invention
The objective of the invention is very provides a kind of temperature over-range indicator to deficiency of the prior art.
The following technical scheme of the concrete employing of the present invention:
A kind of temperature over-range indicator is characterized in that, comprises indication loam cake, base, indication loam cake hollow, and the location structure that covers on base outer surface has position limiting structure and indicates cooperates, and the indication loam cake is nested on the base, and both are slidingly matched; Indication loam cake and base top formation chamber is provided with spring and temperature sensing device in the chamber, cover in the indication also to be provided with location structure and to cooperate with the position limiting structure of base outer surface, scribbles eye-catching indication color at the middle and upper part of base outer surface branch; When being lower than alarm temperature, spring is compressed; When temperature reached alarm temperature, temperature sensing device changed, the spring warning of upspringing.
Described temperature sensing device is made up of permanent magnet and heat sensitive ferrite, and permanent magnet is fixed on chamber roof, and heat sensitive ferrite is fixed on the interior base of chamber, and when permanent magnet and heat sensitive ferrite were inhaled together, spring was compressed.
Described permanent magnet and heat sensitive ferrite are packaged structures.
Described permanent magnet is long clavate, and heat sensitive ferrite is a tubular, and both are slidingly matched.This scheme can accomplish that temperature returns to preset temperature and automatically restores to not alarm condition when following.Promptly can realize only when overheated, reporting to the police the function that cancellation is reported to the police when not overheated.
Described temperature sensing device is a bimetallic strip, and described bimetallic strip has hook-shaped free end, matches with screens structure on the base, and when bimetallic strip caught on the screens structure, stage clip was compressive state.
When temperature sensing device was bimetallic strip, the preferred scheme of the present invention was:
Described bimetallic strip is folding shape, and a flanging is by the top of screw retention at chamber, and another flanging is to have hook-shaped free end; Top at the indication loam cake also is provided with the set screw of regulating the bimetallic strip inclination angle.
The alarm temperature of this scheme can be regulated within the specific limits, makes things convenient for the user in use to regulate calibration;
Described temperature sensing device comprises hook, driving lever, bimetallic strip volute spring, and described hook is fixed on chamber roof, and the driving lever middle part is fixed on the rotating axle by lining, and an end of driving lever has hook arrangement, cooperates with hook; The other end of driving lever is a free end, and the helical spring other end of bimetallic strip that is fixed on the axle with an end joins, and when driving lever and hook caught on, spring was compressive state.
The present invention also can make the indicator with two alarm set points, specifically is to scribble the cured or temperature sensing paint of one deck temperature-sensitive at the top of indication loam cake, and described temperature-sensitive operating temperature cured or temperature sensing paint is lower than described alarm temperature.This scheme is suitable for having equipment, occasion of two alarm set points etc.
Compared with prior art, the present invention has following beneficial effect:
1) on base, is processed with mounting structure, the convenient installation;
2) pure physical construction guarantees long-time reliable and stable work;
3) simple in structure, low production cost is suitable for promoting the use of on a large scale.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is the structural representation of the embodiment of the invention 2;
Fig. 3 is the structural representation of the embodiment of the invention 3;
Fig. 4 is the structural representation of embodiment 4.
Embodiment
As shown in Figure 1, a kind of temperature over-range indicator comprises indication loam cake 1, base 2, indication loam cake 1 hollow, and base 2 outside surfaces are processed with not locating slot 5 to the end, and indication loam cake 1 is nested on the base 2, and both are slidingly matched; Indication loam cake 1 forms chamber with base 2 tops, is provided with spring 3 in the chamber, and chamber roof is fixed with permanent magnet 1-6, is fixed with heat sensitive ferrite 1-7 on the base 2 in the chamber, scribbles eye-catching indication color at the middle and upper part of base outer surface branch.
When temperature was lower than alarm temperature, heat sensitive ferrite 1-7 had ferromagnetism, and the permanent magnet 1-6 of indication loam cake 1 is to the elastic force of heat sensitive ferrite 1-7 attractive force greater than spring 3.This moment, spring 3 was compressed, and expression is in not alarm condition.Rising along with temperature, when reaching default alarm temperature, heat sensitive ferrite 1-7 just reaches curie transition temperature and loses ferromagnetism rapidly, permanent magnet 1-6 descends rapidly to heat sensitive ferrite 6 attractive forces, when less than the elastic force of spring 3, indication loam cake 1 is upspring under the effect of spring 3, exposes the middle and upper part of base 2, the expression overtemperature alarm waits the related personnel to find aftertreatment.When temperature drop to curie transition temperature when following heat sensitive ferrite 1-7 recover ferromagnetism again, but permanent magnet 1-6 has left heat sensitive ferrite 1-7 one segment distance is arranged, the suction of this moment also is not enough to overcome the elastic force of spring 3, can not return to not alarm condition, can only allow between the two distance be reduced to a certain degree can hold mutually and return to not alarm condition by manually depressing indication loam cake 1.Stop screw 4 is screwed in the locating slot 5 of base, comes off from base when preventing to indicate loam cake to upspring, and the bottom of base can be according to the screw thread that different size specifications are gone up in needs processing is installed.
In addition, another scheme of embodiment 1 is to be provided with the cured or temperature sensing paint 1-8 of one deck temperature-sensitive at the top of indication loam cake 1, and its operating temperature is lower than alarm temperature, generally reports to the police or early warning as lower limit.
As shown in Figure 2, embodiment 2 is substantially the same manner as Example 1, just permanent magnet 2-6 is long clavate, heat sensitive ferrite 2-7 is long tubular, when temperature is lower than alarm temperature, heat sensitive ferrite 2-7 has ferromagnetism, and the elastic force that permanent magnet 2-6 attracts heat sensitive ferrite 2-7 to overcome spring 3 under the effect of magnetic force is inhaled in the heat sensitive ferrite 2-7 center pit.Spring 3 is compressed and is in not alarm condition.When temperature raises and reach default alarm temperature, heat sensitive ferrite 2-7 also just reaches curie transition temperature and loses ferromagnetism rapidly, permanent magnet 2-6 also descends simultaneously to heat sensitive ferrite 2-7 attractive force, when less than the elastic force of spring 3, indication loam cake 1 is upspring under the effect of spring 3, the middle and upper part of exposing base 2, the expression overtemperature alarm.This moment, the part of permanent magnet 2-6 still was in the heat sensitive ferrite 2-7 center pit.When temperature drop to curie transition temperature when following heat sensitive ferrite 2-7 recover ferromagnetism again, the elastic force that the magnetic force between permanent magnet 2-6 and the heat sensitive ferrite 2-7 still is enough to overcome spring 3 is drawn into permanent magnet 2-6 in the heat sensitive ferrite 2-7 center pit.Automatically restore to not alarm condition.Need not manual intervention.
Similar as embodiment, can be provided with the cured or temperature sensing paint 2-8 of one deck temperature-sensitive at the top of indication loam cake 1, when temperature reaches its operating temperature, cured thawing of temperature-sensitive or temperature sensing paint variable color, lower limit is reported to the police or early warning.
As shown in Figure 3, a kind of bimetallic strip temperature over-range indicator comprises indication loam cake 1, base 2, indication loam cake 1 hollow, and base 2 outside surfaces are processed with not locating slot 5 to the end, and indication loam cake 1 is nested on the base 2, and both are slidingly matched; Indication loam cake 1 forms chamber with base 2 tops, being provided with spring 3 in the chamber connects with indication loam cake 1, base 2 bullets, chamber roof is fixed with bimetallic strip 3-8, bimetallic strip 3-8 is folding shape, one flanging is fixed on the top of chamber by screw 13, and another flanging is the free end with hook formation 3-10; Top at indication loam cake 1 also is provided with the set screw 12 of regulating the bimetallic strip inclination angle, and the free-ended hook formation 3-10 of bimetallic strip 3-8 matches with screens structure 3-9 on the base 2, scribbles eye-catching indication color at the middle and upper part branch of base 2 outside surfaces.To come off from base 2 in order preventing to indicate loam cake 1 to upspring, also to be provided with dog screw 4 on the indication loam cake 1 and to cooperate with locating slot 5.
When temperature was under the deliberate action temperature, bimetallic strip free end hook formation 3-10 was suspended on the screens structure 3-9 that protrudes on the base.This moment, spring 3 was compressed, and expression is in not alarm condition.Rising along with temperature, bimetallic strip 3-8 is gradually to arrow 11 direction bendings, the free-ended hook formation 3-10 of bimetallic strip just deviates from from the screens structure 3-9 of base when reaching default alarm temperature, indication loam cake 1 is upspring under the effect of spring 3, the middle and upper part of exposing base 2, the expression overtemperature alarm waits the related personnel to find aftertreatment.Bimetallic strip 3-8 restores gradually when temperature descends, but can not snap on the screens structure 8 of base, has only when manually depressing indication loam cake 1, just can snap on the screens structure 3-9 of base, returns to not alarm condition.The inclination angle that can change bimetallic strip 3-8 by the screw-in length of adjusting set screw 12 can change default alarm temperature within the specific limits.
Embodiment 4
As shown in Figure 4, this embodiment is the improvement structure to embodiment 3.Replace bimetallic strip with bimetallic strip volute spring 18, by the free-ended hook formation of the driving lever 15 above-mentioned bimetallic strips of replacement of front end band hook, the other end of driving lever 15 links to each other with the free end of bimetallic strip volute spring 18.Bimetallic strip volute spring 18 other ends are fixed on the axle 16 that can do rotates in a circumferential direction adjusts.Driving lever 15 also is fixed on the axle 16 by the cover 17 at its middle part.Driving lever 15 arrow 11 directions rotation in figure under the driving of bimetallic strip spring 18 when temperature raises.Axle 16 is fixed on the base 2.On indication loam cake 1, hook 14 is housed.The hook arrangement of driving lever 15 is suspended on the hook 14 that covers in the indication when temperature is lower than alarm temperature.Along with the rising of temperature, driving lever 15 is gradually to arrow 11 directions rotations, and two hooks that are suspended to are together just thrown off when reaching default alarm temperature, finish warning.Default alarm temperature is also adjusted in the certain limit again in the installation site of hook 14 on setting angle by bimetallic strip volute spring 18 center fixed axles 16 or the indication loam cake 1.
Claims (2)
1. a temperature over-range indicator is characterized in that, comprises indication loam cake, base, indication loam cake hollow, and the stop screw that covers on base outer surface has locating slot and indicates cooperates, and the indication loam cake is nested on the base, and both are slidingly matched; Chamber is formed at indication loam cake and base top, is provided with spring and temperature sensing device in the chamber, scribbles eye-catching indication color at the middle and upper part of base outer surface branch; When being lower than alarm temperature, spring is compressed; When temperature reached alarm temperature, temperature sensing device changed, the spring warning of upspringing;
Described temperature sensing device is made up of permanent magnet and heat sensitive ferrite, and permanent magnet is fixed on chamber roof, and heat sensitive ferrite is fixed on the interior base of chamber, and when permanent magnet and heat sensitive ferrite were inhaled together, spring was compressed;
Described permanent magnet is long clavate, and heat sensitive ferrite is a tubular, and both are slidingly matched.
2. temperature over-range indicator according to claim 1 is characterized in that, scribbles one deck temperature sensing paint at the top of indication loam cake, and the operating temperature of described temperature sensing paint is lower than described alarm temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101401668A CN101487741B (en) | 2008-09-08 | 2008-09-08 | Temperature over-range indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101401668A CN101487741B (en) | 2008-09-08 | 2008-09-08 | Temperature over-range indicator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101487741A CN101487741A (en) | 2009-07-22 |
| CN101487741B true CN101487741B (en) | 2011-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101401668A Expired - Fee Related CN101487741B (en) | 2008-09-08 | 2008-09-08 | Temperature over-range indicator |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243108B (en) * | 2010-05-10 | 2012-11-07 | 深圳市通力信科技有限公司 | Temperature warning indicator |
| CN101949406A (en) * | 2010-10-09 | 2011-01-19 | 杨晓伟 | Nut cap for monitoring heat production at wire joint in real time |
| CN101949407A (en) * | 2010-10-09 | 2011-01-19 | 陈继文 | Heating monitoring screw cap at lead joint |
| CN102054332B (en) * | 2010-11-17 | 2014-07-09 | 国家电网公司 | Overheated alarm for electrical equipment heating |
| CN105698958B (en) * | 2016-03-10 | 2018-07-27 | 山东建筑大学 | Power circuit junction temperature monitoring device |
| CN107642520A (en) * | 2017-10-20 | 2018-01-30 | 新乡市华航航空液压设备有限公司 | A kind of synchronous alarm bypass group indicater structure |
| CN110838396B (en) * | 2019-12-04 | 2022-05-20 | 湖南省安能电子有限公司 | Magnetic power-off fuse resistor |
| CN112525365B (en) * | 2020-11-27 | 2022-06-17 | 国网山东省电力公司东营供电公司 | High-temperature early warning protection device for power equipment |
| CN112902436B (en) * | 2021-01-21 | 2022-03-15 | 哈尔滨工业大学 | Intelligent thermal protector with heat flow concentration and rotation conversion functions |
| CN114673893A (en) * | 2022-04-21 | 2022-06-28 | 环胜电子(深圳)有限公司 | Positioning module and support device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201233278Y (en) * | 2008-07-18 | 2009-05-06 | 山东省电力分析仪器工程技术研究中心 | Overrun indicator for heat-sensitive ferrite temperature |
-
2008
- 2008-09-08 CN CN2008101401668A patent/CN101487741B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201233278Y (en) * | 2008-07-18 | 2009-05-06 | 山东省电力分析仪器工程技术研究中心 | Overrun indicator for heat-sensitive ferrite temperature |
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| CN101487741A (en) | 2009-07-22 |
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Owner name: SHANDONG HUIGONG ELECTRIC CO., LTD. Free format text: FORMER OWNER: SHANDONG POWER ANALYZER ENGINEERING TECHNOLOGY RESEARCH CENTER Effective date: 20140901 |
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Effective date of registration: 20140901 Address after: Four, building 135, block E, hi tech Pioneer Park, 255086 hi tech Zone, Zibo, Shandong Patentee after: SHANDONG HUIGONG ELECTRIC Co.,Ltd. Address before: 255086, Zibo high tech Zone, Shandong, 135, E Patentee before: Shandong Power Analyzer Engineering Technology Research Center |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 |
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| CF01 | Termination of patent right due to non-payment of annual fee |