CN113959573A - Electric contact bimetallic thermometer capable of self-power-off alarm - Google Patents
Electric contact bimetallic thermometer capable of self-power-off alarm Download PDFInfo
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- CN113959573A CN113959573A CN202111240127.7A CN202111240127A CN113959573A CN 113959573 A CN113959573 A CN 113959573A CN 202111240127 A CN202111240127 A CN 202111240127A CN 113959573 A CN113959573 A CN 113959573A
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- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000011897 real-time detection Methods 0.000 abstract 1
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- 238000007796 conventional method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
- G01K5/48—Measuring temperature based on the expansion or contraction of a material the material being a solid
- G01K5/56—Measuring temperature based on the expansion or contraction of a material the material being a solid constrained so that expansion or contraction causes a deformation of the solid
- G01K5/62—Measuring temperature based on the expansion or contraction of a material the material being a solid constrained so that expansion or contraction causes a deformation of the solid the solid body being formed of compounded strips or plates, e.g. bimetallic strip
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
- G01K5/48—Measuring temperature based on the expansion or contraction of a material the material being a solid
- G01K5/56—Measuring temperature based on the expansion or contraction of a material the material being a solid constrained so that expansion or contraction causes a deformation of the solid
- G01K5/62—Measuring temperature based on the expansion or contraction of a material the material being a solid constrained so that expansion or contraction causes a deformation of the solid the solid body being formed of compounded strips or plates, e.g. bimetallic strip
- G01K5/64—Details of the compounds system
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
- G01K5/48—Measuring temperature based on the expansion or contraction of a material the material being a solid
- G01K5/56—Measuring temperature based on the expansion or contraction of a material the material being a solid constrained so that expansion or contraction causes a deformation of the solid
- G01K5/62—Measuring temperature based on the expansion or contraction of a material the material being a solid constrained so that expansion or contraction causes a deformation of the solid the solid body being formed of compounded strips or plates, e.g. bimetallic strip
- G01K5/70—Measuring temperature based on the expansion or contraction of a material the material being a solid constrained so that expansion or contraction causes a deformation of the solid the solid body being formed of compounded strips or plates, e.g. bimetallic strip specially adapted for indicating or recording
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Abstract
The invention discloses an electric contact bimetallic thermometer capable of giving an alarm by self power-off, which comprises an upright post, wherein the upper surface of the upright post is fixedly connected with the lower surface of a base body, the surface of the base body is fixedly connected with the inner wall of a lower shell through a screw, and the surface of the lower shell is fixedly connected with an upper shell through a screw. Through setting up the heat conduction head, the interface, the stand, the capillary groove, the elastic interface, the backward flow groove, the pressure relief groove, first magnetic path and second magnetic path, make it can report an emergency and ask for help or increased vigilance the back at the calibration needle, its default that reachs the adjusting screw mark can realize the scale auto-lock, make it can conveniently know whether the temperature reaches the maximum threshold value, when this kind of mode can real-time detection temperature, can realize the warning of temperature default and the mark of maximum temperature threshold value, make it realize the record of overtemperature, and subsequent temperature reduces the pointer and still is in maximum threshold value mark state, make it be convenient for report an emergency and ask for help or increased vigilance the back and in time look over, and can know whether the temperature reaches the dangerous value.
Description
Technical Field
The invention relates to the field of industrial instruments, in particular to an electric contact bimetallic thermometer capable of automatically cutting off power and giving an alarm.
Background
The electric contact bimetallic thermometer is applied to production fields and needs automatic control and alarm on temperature. The temperature of an internal body, steam and a gas medium in a range of-80 to 500 ℃ in various production processes is directly measured, and the electric contact bimetallic thermometer has the characteristics that: the temperature is displayed on site, so that the temperature display is visual and convenient; the automatic power-off alarm has the functions of automatically cutting off the power supply and alarming; the safety and reliability are realized, and the service life is long; various structural forms can meet different requirements.
The existing bimetallic thermometer adopts an electric contact mode to alarm the temperature range, however, in the use of different industrial equipment, the temperature has higher requirements, the alarm is made when the temperature exceeds a preset value, and when the temperature is higher than the preset value, the highest temperature cannot be determined after the temperature is reduced, so that the highest temperature cannot be effectively determined after the alarm and the judgment is assisted.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the electric contact bimetallic thermometer capable of automatically cutting off the power supply and giving an alarm, which has higher requirements on the temperature when different industrial equipment is used, the alarm is given when the temperature exceeds the preset value, however, when the temperature is higher than the preset value, the highest temperature cannot be determined after the temperature is reduced, and the highest temperature cannot be effectively determined and auxiliary judgment can not be carried out after the alarm.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a can be from electric contact bimetal thermometer of outage warning, includes the stand, the upper surface of stand and the lower fixed surface of base member are connected, the surface of base member passes through screw fixed connection with the inner wall of casing down, the surface of casing passes through screw fixed connection and goes up the casing down, the bottom fixedly connected with interface of stand, the bottom of interface is provided with the heat conduction head, the inner wall fixedly connected with dial plate of casing down.
The last fixed surface of dial plate is connected with and connects the electric subassembly, elastic interface has been seted up to the inner wall of base member, elastic interface meets the elastic component, elastic interface communicates with the capillary groove mutually, the pressure relief groove has been seted up to the upper surface of base member, the inner wall and the capillary groove of pressure relief groove communicate mutually, the inner wall of pressure relief groove is linked together through the backward flow hole of seting up and elastic interface, sliding connection has the shutoff to block up in the backward flow hole, the inner wall fixedly connected with baffle of pressure relief groove, the inner wall joint of baffle has a sealed section of thick bamboo.
The inner wall of the sealing cylinder is connected with a first magnetic block in a sliding mode, the sealing cylinder and the inner wall of the partition plate are connected with the same second magnetic block in a sliding mode, an airtight plate is arranged on one side of the first magnetic block, the surface of the airtight plate is connected to the inner wall of the sealing cylinder in a sliding mode, the surface of the airtight plate is in lap joint with one end of an adjusting screw, the surface of the adjusting screw is in snap joint with the inner wall of the pressure relief groove through a threaded sleeve, and the inner wall of the pressure relief groove is connected with two pistons in a sliding mode.
As a preferable technical scheme of the invention, the left side surface of the partition board is provided with a backflow hole, the backflow hole is communicated with the capillary groove, the inner wall of the backflow hole is connected with a bolt in a sliding manner, and the inner wall of the backflow hole is communicated with the inner wall of the pressure relief groove through a plurality of communication holes.
As a preferable technical scheme of the invention, the surface of the piston is fixedly connected with a spring, the other end of the spring is lapped with the inner wall of the pressure relief groove, and one side of the inner wall of the pressure relief groove is provided with a constant pressure hole.
As a preferred technical solution of the present invention, one end of the elastic member is movably connected to a transmission mechanism, the transmission mechanism is fixedly connected to a pointer, the surface of the electrical connection assembly is provided with two contacts, and the surface of the electrical connection assembly is movably connected to two calibration pins.
As a preferred technical scheme of the invention, the surface of the upper shell is movably connected with an adjusting rod through a fixed seat, and the bottom end of the adjusting rod is fixedly connected with an adjusting plate.
As a preferred technical solution of the present invention, the contacts are electrically connected to corresponding calibration pins, the upper housing is made of a transparent plastic material, and the interface is disposed in a threaded manner.
As a preferable technical solution of the present invention, the constant pressure hole and the return flow hole are respectively located at a side where the two pistons are far away from each other, and the magnetic pole directions of the opposing surfaces of the first magnetic block and the second magnetic block are the same.
As a preferable technical scheme of the invention, the capillary groove is in a convex shape at the joint of the elastic interface, and the second magnetic block is connected at the communication part of the pressure relief groove and the capillary groove in a sliding manner and keeps a blocking state.
As a preferable technical scheme of the invention, the surface of the first magnetic block is provided with a sealing ring and is in sliding connection with the inner wall of the sealing cylinder, and the inner wall of the interface is filled with a heated medium.
Compared with the prior art, the invention can achieve the following beneficial effects:
1. when the heat conducting head is used, the positions of two calibration pins are determined by matching the adjusting rod with the adjusting plate, a contact is connected with an external alarm device, the adjusting screw is rotated according to the maximum temperature of the calibration pin, the moving position of the adjusting screw is changed, the air pressure between the air sealing plate and a first magnetic block is changed under the action of the sealing ring on the surface of the air sealing plate and the first magnetic block, the distance between the first magnetic block and a second magnetic block is changed, the repulsive force is changed, the lowest movable pressure value of the second magnetic block is changed, the effect of adjusting the lowest temperature mark value is achieved, and when the heat conducting head is heated, a heated medium in the connector expands along with the heated medium, so that the heated medium flows into the elastic interface through the capillary groove, the elastic change drives the pointer to rotate through the transmission mechanism, when the temperature is higher than the preset value synchronously, the second magnetic block is pressed to press the first magnetic block under the action of repulsion force, the first magnetic block is pressed through air pressure between the air sealing plate synchronously, the second magnetic block is locked in the sealing cylinder, then the pistons on the pressed side of the two pistons press the spring, the air pressure in the backflow holes pushes the sealing plug to seal the elastic interface, the maximum temperature value can be kept, the preset value of the adjusting screw is larger than the preset value of the calibration needle, the calibration needle can achieve scale self-locking when reaching the preset value marked by the adjusting screw after being alarmed, the calibration needle can conveniently know whether the temperature reaches the maximum threshold value or not, and the alarm of the preset temperature value and the marking of the maximum temperature threshold value can be realized while the temperature can be detected in real time, the over-temperature recording is realized, and the subsequent temperature reduction pointer is still in the maximum threshold marking state, so that the temperature reduction pointer can be conveniently and timely checked after alarming, and whether the temperature reaches a dangerous value can be known.
2. Through the arrangement of the plug pin, the backflow hole, the communicating hole, the capillary groove, the constant pressure hole, the spring and the piston, when the pressure-reducing type pressure-reducing device is used, the piston on one side moves along with the pressing of the two pistons, the piston on the other side moves, redundant gas on one side of the piston is discharged to the outside through the constant pressure hole, when the pressure is reduced immediately, the second magnetic block loses the pressure effect, the piston is reset under the effect of the first magnetic block to prevent heated medium in the pressure-reducing groove from flowing back, the locking state is kept, after a worker finishes detection, the plug pin is pulled out slightly by pulling the plug pin, the communicating holes on the two sides of the partition plate are communicated with the backflow hole, and then the piston presses the heated medium in the pressure-reducing groove into the communicating hole under the effect of the spring, so that the heated medium enters the capillary groove through the backflow hole, and the piston returns to a normal working state.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective sectional view of the present invention;
FIG. 3 is a schematic perspective view of the dial plate of the present invention;
FIG. 4 is a schematic perspective structural view of the column of the present invention;
FIG. 5 is a schematic cross-sectional view of a column according to the present invention;
FIG. 6 is a schematic perspective sectional view of a substrate according to the present invention;
fig. 7 is a schematic cross-sectional view of the separator according to the present invention.
Wherein: the device comprises a column 1, a base 2, a lower shell 3, an upper shell 4, a port 5, a heat conducting head 6, an electric connecting component 7, a contact 8, a calibration pin 9, a pointer 10, a dial 11, a transmission mechanism 12, an elastic element 13, a fixed seat 14, an adjusting rod 15, an adjusting plate 16, a capillary groove 17, an elastic interface 18, a pressure relief groove 19, a reflux groove 20, a sealing plug 21, a partition plate 22, a piston 23, a spring 24, a sealing cylinder 25, a first magnetic block 26, an air sealing plate 27, an adjusting screw 28, a second magnetic block 29, a communication hole 30, a reflux hole 31, a plug 32 and a constant pressure hole 33.
Detailed Description
Technical means for implementing the present invention; authoring features; the purpose served by the disclosure is to provide a thorough understanding of the invention, and is to be construed as being a limitation on the scope of the invention as defined by the appended claims. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples, unless otherwise specified, are conventional methods, materials used in the following examples; reagents and the like are commercially available unless otherwise specified.
Examples
As shown in fig. 1-7, the invention provides an electric contact bimetallic thermometer capable of self-power-off alarm, which comprises a vertical column 1, wherein the upper surface of the vertical column 1 is fixedly connected with the lower surface of a base body 2, the surface of the base body 2 is fixedly connected with the inner wall of a lower shell 3 through screws, the surface of the lower shell 3 is fixedly connected with an upper shell 4 through screws, the bottom end of the vertical column 1 is fixedly connected with a connector 5, the bottom end of the connector 5 is provided with a heat conducting head 6, and the inner wall of the lower shell 3 is fixedly connected with a dial 11.
The inner wall of the sealing cylinder 25 is connected with a first magnetic block 26 in a sliding mode, the sealing cylinder 25 and the inner wall of the partition plate 22 are connected with a same second magnetic block 29 in a sliding mode, one side of the first magnetic block 26 is provided with an air sealing plate 27, the surface of the air sealing plate 27 is connected to the inner wall of the sealing cylinder 25 in a sliding mode, the surface of the air sealing plate 27 is in lap joint with one end of an adjusting screw 28, the surface of the adjusting screw 28 is in snap joint with the inner wall of the pressure relief groove 19 through a threaded sleeve, and the inner wall of the pressure relief groove 19 is connected with the two pistons 23 in a sliding mode.
In other embodiments, as shown in fig. 1 and 3, one end of the elastic element 13 is movably connected with a transmission mechanism 12, the transmission mechanism 12 is fixedly connected with a pointer 10, the surface of the electrical connection assembly 7 is provided with two contacts 8, the surface of the electrical connection assembly 7 is movably connected with two calibration pins 9, the surface of the upper housing 4 is movably connected with an adjusting rod 15 through a fixing seat 14, the bottom end of the adjusting rod 15 is fixedly connected with an adjusting plate 16, the contacts 8 are electrically connected with the corresponding calibration pins 9, the upper housing 4 is specifically made of transparent plastic, and the interface 5 is arranged in a threaded manner.
Through setting up drive mechanism 12, drive mechanism 12 is used and is the rotation of the deformation volume drive pointer 10 with elastic component 13, simultaneously with connect the moulding that electric component 7 is prior art, do not do the functional explanation, through setting up contact 8, contact 8 can conveniently be connected with power supply unit and alarm device, through setting up regulation pole 15, adjust pole 15 can conveniently adjust the index position of calibration needle 9, operate under regulating plate 16's effect, it is more stable to make its use, through setting up upper housing 4, upper housing 4 adopts the transparent plastic material, can keep good visualization in making its use.
In other embodiments, as shown in fig. 6 and 7, a backflow hole 31 is formed on the left side surface of the partition 22, the backflow hole 31 is communicated with the capillary groove 17, a plug 32 is slidably connected to the inner wall of the backflow hole 31, the inner wall of the backflow hole 31 is communicated with the inner wall of the pressure relief groove 19 through a plurality of communicating holes 30, a spring 24 is fixedly connected to the surface of the piston 23, the other end of the spring 24 is overlapped with the inner wall of the pressure relief groove 19, a constant pressure hole 33 is formed on one side of the inner wall of the pressure relief groove 19, the constant pressure hole 33 and the backflow hole 31 are respectively located on the sides far away from the two pistons 23, the magnetic pole facing surfaces of the first magnetic block 26 and the second magnetic block 29 have the same direction, the capillary groove 17 is located at the connection position of the elastic interface 18 and is convex, the second magnetic block 29 is slidably connected to the communication position between the pressure relief groove 19 and the capillary groove 17 and is kept in a blocking state, a sealing ring is arranged on the surface of the first magnetic block 26 and is slidably connected to the inner wall of the sealing cylinder 25, the inner wall of the interface 5 is filled with a heated medium.
Through setting up the backward flow hole 31, the backward flow hole 31 can conveniently derive the backward flow with the inside medium of being heated of pressure relief groove 19, be convenient for reset and restart, through setting up bolt 32, bolt 32 can keep the inside shutoff state that keeps of backward flow hole 31, make it unable and intercommunicating pore 30 be in the communicating state, through setting up constant voltage hole 33, constant voltage hole 33 can keep the piston 23 that corresponds one side to keep removing after the pressurized, make it unable removal under the effect that atmospheric pressure can not appear, through setting up second magnetic path 29, second magnetic path 29 is located the junction of elastic interface 18 and is the protruding form, can play certain spacing effect, make it receive the condition that excessive removal can not appear under first magnetic path 26's the effect.
The working principle is as follows:
s1, the positions of two calibration pins 9 are determined by matching the adjusting rod 15 with the adjusting plate 16, the contact 8 is connected with an external alarm device, the adjusting screw 28 is rotated according to the maximum temperature of the calibration pins 9, the moving position change airtight plate 27 and the sealing ring on the surface of the first magnetic block 26 are enabled to change the gas pressure between the first magnetic block 26 and the second magnetic block 29 under the action of the moving position change airtight plate 27 and the sealing ring on the surface of the first magnetic block 26, the repulsive force between the first magnetic block 26 and the second magnetic block 29 is enabled to change, and the lowest movable pressure value of the second magnetic block 29 is enabled to change, so that the effect of adjusting the lowest temperature mark value is achieved;
s2, when the heat conducting head 6 is heated, the heated medium in the connector expands to flow into the elastic interface 18 through the capillary groove 17, and the elastic change drives the pointer 10 to rotate through the transmission mechanism 12, when the temperature is higher than the preset value, the second magnetic block 29 is pressed to press the first magnetic block 26 under the action of repulsion force, and the first magnetic block 26 is pressed by the air pressure between the air sealing plate 27 to lock the second magnetic block 29 in the sealing cylinder 25, the piston 23 on the pressed side of the two pistons 23 presses the spring 24 to drive the plug 21 in the air pressure shield in the return hole 31 to plug the elastic interface 18;
s3, the mode can keep the maximum temperature value, the preset value of the adjusting screw 28 is larger than the preset value of the calibrating needle 9, the calibrating needle can realize scale self-locking when reaching the preset value marked by the adjusting screw 28 after alarming by the calibrating needle 9, so that whether the temperature reaches the maximum threshold value can be known, the piston 23 at one side moves through the backflow groove 20 to press the seal plug 21 along with the pressure movement of the two pistons 23, when the piston 23 at the other side moves, the redundant gas at one side is discharged to the outside through the constant pressure hole 33, when the pressure is reduced, the second magnetic block 29 loses the pressure effect, the piston is reset under the effect of the first magnetic block 26 to prevent the heated medium in the pressure relief groove 19 from flowing back, the locking state is kept, when the worker finishes the detection, the plug pin 32 is pulled to be drawn out in a small size, so that the communicating holes 30 at the two sides of the partition plate 22 are communicated with the backflow hole 31, then, the piston 23 presses the heated medium in the pressure relief groove 19 into the communication hole 30 under the action of the spring 24, so that the heated medium enters the capillary groove 17 through the return hole 31 and returns to the normal working state.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a can be from electric contact bimetal thermometer of outage warning, includes stand (1), its characterized in that: the upper surface of the upright post (1) is fixedly connected with the lower surface of the base body (2), the surface of the base body (2) is fixedly connected with the inner wall of the lower shell (3) through screws, the surface of the lower shell (3) is fixedly connected with the upper shell (4) through screws, the bottom end of the upright post (1) is fixedly connected with an interface (5), the bottom end of the interface (5) is provided with a heat conducting head (6), and the inner wall of the lower shell (3) is fixedly connected with a dial plate (11);
the dial plate is characterized in that an electric connection assembly (7) is fixedly connected to the upper surface of the dial plate (11), an elastic interface (18) is formed in the inner wall of the base body (2), the elastic interface (18) is clamped with an elastic part (13), the elastic interface (18) is communicated with the capillary groove (17), a pressure relief groove (19) is formed in the upper surface of the base body (2), the inner wall of the pressure relief groove (19) is communicated with the capillary groove (17), the inner wall of the pressure relief groove (19) is communicated with the elastic interface (18) through a return hole (31), a sealing plug (21) is connected in the return hole (31) in a sliding mode, a partition plate (22) is fixedly connected to the inner wall of the pressure relief groove (19), and a sealing barrel (25) is clamped to the inner wall of the partition plate (22);
the inner wall of the sealing cylinder (25) is connected with a first magnetic block (26) in a sliding mode, the sealing cylinder (25) and the inner wall of the partition plate (22) are connected with a same second magnetic block (29) in a sliding mode, an air sealing plate (27) is arranged on one side of the first magnetic block (26), the surface of the air sealing plate (27) is connected to the inner wall of the sealing cylinder (25) in a sliding mode, the surface of the air sealing plate (27) is in lap joint with one end of an adjusting screw (28), the surface of the adjusting screw (28) is connected to the inner wall of the pressure relief groove (19) in a clamping mode through a threaded sleeve, and the inner wall of the pressure relief groove (19) is connected with two pistons (23) in a sliding mode.
2. A self-interrupting, self-alarming, electrical contact bimetallic thermometer, as defined in claim 1, wherein: the pressure relief device is characterized in that a backflow hole (31) is formed in the left side face of the partition plate (22), the backflow hole (31) is communicated with the capillary groove (17), a plug pin (32) is connected to the inner wall of the backflow hole (31) in a sliding mode, and the inner wall of the backflow hole (31) is communicated with the inner wall of the pressure relief groove (19) through a plurality of communicating holes (30).
3. A self-interrupting, self-alarming, electrical contact bimetallic thermometer, as defined in claim 1, wherein: the surface fixed connection of piston (23) has spring (24), the other end of spring (24) and the inner wall overlap joint of pressure release groove (19), constant voltage hole (33) have been seted up to one side of pressure release groove (19) inner wall.
4. A self-interrupting, self-alarming, electrical contact bimetallic thermometer, as defined in claim 1, wherein: one end swing joint of elastic component (13) has drive mechanism (12), drive mechanism (12) fixedly connected with pointer (10), the surface that connects electric subassembly (7) is provided with two contacts (8), the surface swing joint that connects electric subassembly (7) has two calibration needles (9).
5. A self-interrupting, self-alarming, electrical contact bimetallic thermometer, as defined in claim 1, wherein: the surface of the upper shell (4) is movably connected with an adjusting rod (15) through a fixed seat (14), and the bottom end of the adjusting rod (15) is fixedly connected with an adjusting plate (16).
6. A self-interrupting, self-alarming, electrical contact bimetallic thermometer, as defined in claim 4, wherein: the contact (8) is electrically connected with the corresponding calibration needle (9), the upper shell (4) is made of transparent plastic, and the interface (5) is arranged in a threaded manner.
7. A self-interrupting, self-alarming, electrical contact bimetallic thermometer, as defined in claim 3, wherein: the constant pressure hole (33) and the backflow hole (31) are respectively positioned on one side of the two pistons (23) far away from each other, and the magnetic pole directions of the opposite surfaces of the first magnetic block (26) and the second magnetic block (29) are the same.
8. A self-interrupting, self-alarming, electrical contact bimetallic thermometer, as defined in claim 1, wherein: the capillary groove (17) is in a convex shape at the joint of the elastic interface (18), and the second magnetic block (29) is connected to the communication position of the pressure relief groove (19) and the capillary groove (17) in a sliding mode and keeps a blocking state.
9. A self-interrupting, self-alarming, electrical contact bimetallic thermometer, as defined in claim 1, wherein: the surface of the first magnetic block (26) is provided with a sealing ring and is in sliding connection with the inner wall of the sealing cylinder (25), and the inner wall of the interface (5) is filled with a heated medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111240127.7A CN113959573B (en) | 2021-10-25 | 2021-10-25 | Electric contact bimetal thermometer capable of giving alarm when power is off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111240127.7A CN113959573B (en) | 2021-10-25 | 2021-10-25 | Electric contact bimetal thermometer capable of giving alarm when power is off |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113959573A true CN113959573A (en) | 2022-01-21 |
| CN113959573B CN113959573B (en) | 2023-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111240127.7A Active CN113959573B (en) | 2021-10-25 | 2021-10-25 | Electric contact bimetal thermometer capable of giving alarm when power is off |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116256074A (en) * | 2023-05-15 | 2023-06-13 | 广东电网有限责任公司东莞供电局 | Thermal fault monitoring device and method based on transformer substation switch cabinet |
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|---|---|---|---|---|
| GB469531A (en) * | 1935-10-29 | 1937-07-27 | Georg Bloch | Improvements in mechanical relays for measuring instruments such as bimetallic thermometers |
| GB508441A (en) * | 1938-08-31 | 1939-06-30 | Jules Eugene Malivert | Improvements in or relating to thermometers |
| GB765572A (en) * | 1954-03-05 | 1957-01-09 | Sidney Arthur Singleton | Improvements in electric temperature sensitive switch devices for fire alarms |
| GB1270834A (en) * | 1969-03-14 | 1972-04-19 | Diamond H Controls Ltd | Improvements in or relating to thermally operated electric switches |
| NL7303223A (en) * | 1972-03-08 | 1973-09-11 | ||
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| CN103994835A (en) * | 2014-05-23 | 2014-08-20 | 西安开天铁路电气股份有限公司 | Thermometal temperature relay |
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2021
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116256074A (en) * | 2023-05-15 | 2023-06-13 | 广东电网有限责任公司东莞供电局 | Thermal fault monitoring device and method based on transformer substation switch cabinet |
| CN116256074B (en) * | 2023-05-15 | 2023-07-28 | 广东电网有限责任公司东莞供电局 | Thermal fault monitoring device and method based on transformer substation switch cabinet |
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| Publication number | Publication date |
|---|---|
| CN113959573B (en) | 2023-11-17 |
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