CN114046893A - Bimetal thermometer - Google Patents
Bimetal thermometer Download PDFInfo
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- CN114046893A CN114046893A CN202111348142.3A CN202111348142A CN114046893A CN 114046893 A CN114046893 A CN 114046893A CN 202111348142 A CN202111348142 A CN 202111348142A CN 114046893 A CN114046893 A CN 114046893A
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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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- 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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- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a bimetallic thermometer, which comprises a measuring component, an indicating component and a shell component, wherein the measuring component comprises a temperature sensing tube and a bimetallic strip; the indicating assembly comprises a corner spring and a machine core, one end of the corner spring is connected with the bimetallic strip, the other end of the corner spring is connected with the machine core, and the machine core can indicate temperature; the shell assembly comprises a shell and a cover, the shell and the cover are detachably and hermetically connected, and a cavity enclosed by the shell and the cover is filled with shock-proof oil. When the temperature of bimetallic strip changes, the bimetallic strip expands or the shrinkage varies, drives the corner spring that links to each other with the bimetallic strip and rotates, and the corner spring links to each other with the core, and the core can the temperature instruction to make the thermometer can the temperature measurement and instruct the temperature. The watchcase and the watchcase sealing connection, the cavity that the two enclose is filled with the shock-resistant oil for the temperature measurement work still can be carried out to the thermometer under vibrations environment, improves the operational reliability and the adaptability of thermometer.
Description
Technical Field
The invention relates to the technical field of industrial instruments, in particular to a bimetallic thermometer.
Background
The bimetal thermometer combines two metals with different linear expansion coefficients, one end of the bimetal thermometer is fixed, and when the temperature changes, the two metals have different thermal expansion and drive the pointer to deflect to indicate the temperature, namely the bimetal thermometer. The temperature measuring range of the bimetallic thermometer is-80-500 ℃, and the bimetallic thermometer is suitable for temperature measurement when the requirement on the precision is not high in industry.
The shock-proof bimetallic thermometers on the current market mostly adopt iron sheet electroplating and aluminum alloy shells, so that the corrosion resistance and the adaptability are poor; the volume of the cavity is large, a large amount of shock-resistant oil needs to be added, and the economic cost is increased; meanwhile, the watchcase and the watch cover adopt a screw mounting mode, time and labor are consumed, and the adaptability of the bimetallic thermometer is further reduced.
Therefore, how to change the current situation that the bimetallic thermometer in the prior art is poor in adaptability becomes a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to provide a bimetallic thermometer, which solves the problems in the prior art and improves the adaptability of the bimetallic thermometer.
In order to achieve the purpose, the invention provides the following scheme: the present invention provides a bimetal thermometer, comprising:
the temperature-sensing device comprises a measuring assembly and a control assembly, wherein the measuring assembly comprises a temperature-sensing pipe and a bimetallic strip, the bimetallic strip is positioned in the temperature-sensing pipe, and the bimetallic strip is made of two metals made of different materials;
the indicating assembly comprises a corner spring and a machine core, one end of the corner spring is connected with the bimetallic strip, the other end of the corner spring is connected with the machine core, and the machine core can indicate temperature;
the shell assembly comprises a shell and a cover, the shell is detachably and hermetically connected with the cover, the indicating assembly is positioned in a cavity formed by the shell and the cover, and the measuring assembly is connected with the shell assembly; and a cavity enclosed by the meter shell and the meter cover is filled with shock-proof oil.
Preferably, the bimetal is spiral, and the bimetal and the temperature sensing pipe are coaxially arranged.
Preferably, one end of the bimetallic strip is connected with the corner spring by a connecting wire, the other end of the bimetallic strip is connected with a lower block, and the lower block is positioned in the temperature sensing pipe; the connecting wire and the lower blocking block are respectively connected with the connecting wire in a spot welding mode.
Preferably, the temperature sensing pipe utilize the spliced pole with the watchcase links to each other, the temperature sensing pipe utilize installation nut with the spliced pole links to each other, the one end suit of spliced pole in the outside of temperature sensing pipe, installation nut with spliced pole threaded connection, installation nut can fix the temperature sensing pipe with the relative position of spliced pole, the other end of spliced pole with the watchcase links to each other, the spliced pole is connected with coupling nut, coupling nut can fix the spliced pole with the relative position of watchcase, the connecting wire stretch into in the watchcase with the corner spring links to each other.
Preferably, the wristwatch case, the temperature sensing tube, the connecting wire, and the connecting post are all made of stainless steel.
Preferably, the movement comprises a pointer, the pointer is located in a hollow portion of the watch cover, and the movement can drive the pointer to rotate relative to the watch cover.
Preferably, glass is embedded on one side, away from the watch case, of the watch cover, a rubber ring is arranged between the watch cover and the glass, a lining ring is arranged between the watch cover and the watch case, and the pointer is arranged opposite to the glass.
Preferably, the watchcase is in interference fit with the watch cover, and the watchcase is connected with the watch cover in a clamping mode.
Preferably, the watch cover has a concave structure facing the direction of the watch case, the watch case has an oil filling port, the oil filling port is communicated with a cavity enclosed by the watch case and the watch cover, and an oil filling plug is arranged at the oil filling port.
Preferably, the watch case is connected with a signboard.
Compared with the prior art, the invention has the following technical effects: the bimetallic thermometer comprises a measuring assembly, an indicating assembly and a shell assembly, wherein the measuring assembly comprises a temperature sensing tube and a bimetallic strip, the bimetallic strip is positioned in the temperature sensing tube, and the bimetallic strip is made of two metals made of different materials; the indicating assembly comprises a corner spring and a machine core, one end of the corner spring is connected with the bimetallic strip, the other end of the corner spring is connected with the machine core, and the machine core can indicate temperature; the shell assembly comprises a shell and a cover, the shell and the cover are detachably and hermetically connected, the indicating assembly is positioned in a cavity defined by the shell and the cover, and the measuring assembly is connected with the shell assembly; the shock-proof oil is filled in a cavity enclosed by the meter shell and the meter cover.
According to the bimetallic thermometer, the bimetallic strip is made of two metals made of different materials, so that the temperature is measured by utilizing the principle that the bimetallic strip is deformed to different degrees when the temperature is changed. When the temperature of bimetallic strip changes, the bimetallic strip expands or the shrinkage varies, drives the corner spring that links to each other with the bimetallic strip and rotates, and the corner spring links to each other with the core, and the core can the temperature instruction to make the thermometer can the temperature measurement and instruct the temperature. Meanwhile, the meter shell is connected with the meter cover in a sealing mode, and the shock-proof oil is filled in a cavity enclosed by the meter shell and the meter cover, so that the temperature measurement of the thermometer can be still carried out in a shock environment, and the working reliability and the adaptability of the thermometer are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic front view of a bimetallic thermometer of the present invention;
FIG. 2 is a side view of the bimetallic thermometer of the present invention;
FIG. 3 is a schematic view of a cutaway configuration of the bimetallic thermometer of the present invention;
FIG. 4 is a schematic view of a portion of the bimetallic thermometer of the present invention;
the temperature sensing device comprises a temperature sensing tube 1, a bimetallic strip 2, a corner spring 3, a movement 4, a watch case 5, a watch cover 6, a connecting wire 7, a lower plug 8, a connecting column 9, an outer nut 10, a connecting nut 11, a pointer 12, a stripped glass 13, a rubber ring 14, a lining ring 15, an oil filling port 16, an oil filling plug 17 and a signboard 18, wherein the temperature sensing tube is arranged on the watch case, the connecting wire is arranged on the watch case, the pointer 12 is arranged on the pointer, the rubber ring 14 is arranged on the watch case, the lining ring 15 is arranged on the watch case, the oil filling port 16 is arranged on the watch case, and the oil filling plug 18 is arranged on the watch case.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a bimetallic thermometer, which solves the problems in the prior art and improves the adaptability of the bimetallic thermometer.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1-4, fig. 1 is a front view of a bimetal thermometer of the present invention, fig. 2 is a side view of the bimetal thermometer of the present invention, fig. 3 is a sectional structure of the bimetal thermometer of the present invention, and fig. 4 is a partial structure of the bimetal thermometer of the present invention.
The invention provides a bimetallic thermometer, which comprises a measuring assembly, an indicating assembly and a shell assembly, wherein the measuring assembly comprises a temperature sensing tube 1 and a bimetallic strip 2, the bimetallic strip 2 is positioned in the temperature sensing tube 1, and the bimetallic strip 2 is made of two metals made of different materials; the indicating assembly comprises a corner spring 3 and a machine core 4, one end of the corner spring 3 is connected with the bimetallic strip 2, the other end of the corner spring 3 is connected with the machine core 4, and the machine core 4 can indicate temperature; the shell assembly comprises a shell 5 and a cover 6, the shell 5 and the cover 6 are detachably and hermetically connected, the indicating assembly is positioned in a cavity defined by the shell 5 and the cover 6, and the measuring assembly is connected with the shell assembly; the shock-proof oil is filled in a cavity enclosed by the meter shell 5 and the meter cover 6.
According to the bimetallic thermometer, the bimetallic strip 2 is made of two metals made of different materials, so that the temperature is measured by utilizing the principle that the bimetallic strip 2 deforms to different degrees when the temperature changes. When the temperature of bimetallic strip 2 changes, bimetallic strip 2 inflation or shrinkage amount vary, drive the corner spring 3 rotation that links to each other with bimetallic strip 2, and corner spring 3 links to each other with core 4, and core 4 can indicate the temperature to make the thermometer can the temperature measurement and instruct the temperature. Meanwhile, the meter shell 5 is hermetically connected with the meter cover 6, and the shock-proof oil is filled in a cavity enclosed by the meter shell and the meter cover, so that the temperature measurement of the thermometer can be still carried out in a shock environment, and the working reliability and the adaptability of the thermometer are improved.
In this embodiment, bimetallic strip 2 is the heliciform, and bimetallic strip 2 and the coaxial setting of temperature sensing pipe 1 when bimetallic strip 2 senses the temperature change, and the deformation volume of bimetallic strip 2 is different for heliciform bimetallic strip 2 is rolled up or is loosened, and then drives the corner spring 3 rotation that links to each other with bimetallic strip 2, and heliciform bimetallic strip 2 can effectively improve temperature measurement sensitivity.
Specifically, one end of the bimetallic strip 2 is connected with the corner spring 3 by using a connecting wire 7, the other end of the bimetallic strip 2 is connected with a lower plugging block 8, and the lower plugging block 8 is arranged in the temperature sensing tube 1 and is hermetically connected with the temperature sensing tube 1, so that impurities such as water vapor and the like in the external environment are prevented from entering the temperature sensing tube 1 to influence the temperature measurement sensitivity; the connecting wire 7 and the lower blocking block 8 are respectively connected with the connecting wire 7 in a spot welding mode, and the influence on the deformation of the bimetallic strip 2 is reduced as much as possible while the bimetallic strip 2 is connected.
Wherein, the temperature sensing tube 1 is connected with the watchcase 5 by a connecting column 9, in the embodiment, the connecting column 9 is in threaded connection with the watchcase 5 and adopts sealing threads to enhance the sealing performance of the device, in addition, the temperature sensing tube 1 is connected with the connecting column 9 by an installation external nut 10, one end of the connecting column 9 is sleeved outside the temperature sensing tube 1, the installation external nut 10 is in threaded connection with the connecting column 9, the installation external nut 10 can fix the relative position of the temperature sensing tube 1 and the connecting column 9, the connecting column 9 is connected with the temperature sensing tube 1 by the installation external nut 10, the disassembly and assembly are convenient, the other end of the connecting column 9 is connected with the watchcase 5, the connecting column 9 is connected with a connecting nut 11, the connecting nut 11 can fix the relative position of the connecting column 9 and the watchcase 5, the connecting column 9 is in threaded connection with the watchcase 5, the connecting stability is further ensured by the fixing of the connecting nut 11, the connecting wire 7 extends into the watchcase 5 to be connected with the corner spring 3, the cavity enclosed by the connecting column 9 and the temperature sensing tube 1 is communicated with the cavity enclosed by the watch shell 5 and the watch cover 6.
It should be noted that the case 5, the watch cover 6, the temperature sensing tube 1, the connecting wire 7 and the connecting column 9 are all made of stainless steel, and the stainless steel is corrosion-resistant, so that the thermometer can be used for measuring the temperature of corrosive media, and the adaptability of the thermometer is improved.
More specifically, movement 4 comprises a pointer 12, pointer 12 is located in the hollow of watch cover 6, movement 4 can drive pointer 12 to rotate relative to watch cover 6, pointer 12 is set and pointer 12 can be used for indicating temperature; in other embodiments of the invention, a digital dial or the like may be provided for indicating the temperature, which digital dial may be rotated with the angle spring 3, thereby displaying different temperatures at the window.
In order to enable an operator to conveniently observe the temperature indicated by the pointer 12, glass 13 is embedded on one side, away from the watch case 5, of the watch cover 6, a rubber ring 14 is arranged between the watch cover 6 and the glass 13, the embedding stability of the glass 13 is improved, a lining ring 15 is arranged between the watch cover 6 and the watch case 5, the leakage of the shock-resistant oil is avoided, and the pointer 12 is arranged right opposite to the glass 13, so that the temperature reading is conveniently observed.
Further, watchcase 5 and 6 interference fit of table cover, watchcase 5 links to each other with 6 joints of table cover, and it is convenient to connect, and the centering nature is better, and bearing capacity is high, in this embodiment, set up fixture block and with the bayonet socket of fixture block looks adaptation between watchcase 5 and the table cover 6, fixture block and bayonet socket joint, convenient location and assembly, and manufacturing cost is lower, sets up junk ring 15 between watchcase 5 and the table cover 6, guarantees the leakproofness.
Furthermore, the watch cover 6 has a concave structure facing the direction of the watch case 5, so that the volume of a cavity enclosed by the watch cover 6 and the watch case 5 is reduced, the using amount of the shock-resistant oil is saved, and the production cost is further saved. The meter shell 5 is provided with an oil filling port 16, the oil filling port 16 is communicated with a cavity formed by the meter shell 5 and the meter cover 6, an oil filling plug 17 is arranged at the oil filling port 16, and the oil filling port 16 can be used for filling shock-resistant oil into the thermometer.
In addition, for better temperature indication, a signboard 18 is further arranged in the hollow part of the watch cover 6, temperature scales are arranged on the signboard and matched with the pointer 12 to display the temperature, the signboard 18 is connected with the watch shell 5 through a screw, and the signboard 18 can be used for marking information such as the measuring range, the model and the manufacturer of the thermometer.
According to the bimetallic thermometer, the bimetallic strip 2 is made of two metals made of different materials, so that the temperature is measured by utilizing the principle that the bimetallic strip 2 deforms to different degrees when the temperature changes. When the temperature of bimetallic strip 2 changes, bimetallic strip 2 inflation or shrinkage amount vary, drive the corner spring 3 rotation that links to each other with bimetallic strip 2, and corner spring 3 links to each other with core 4, and core 4 can indicate the temperature to make the thermometer can the temperature measurement and instruct the temperature. In addition, the watch case 5, the watch cover 6, the temperature sensing tube 1, the connecting wire 7 and the connecting column 9 are all made of stainless steel materials, so that the thermometer can be used for measuring the temperature of corrosive media, and the adaptability of the thermometer is improved. Meanwhile, the meter shell 5 is hermetically connected with the meter cover 6, and the shock-proof oil is filled in a cavity enclosed by the meter shell and the meter cover, so that the temperature measurement of the thermometer can be still carried out in a shock environment, and the working reliability and the adaptability of the thermometer are improved. In addition, watchcase 5 and 6 interference fit of table cover, the joint is continuous to be connected conveniently, and the centering is better, and bearing capacity is high, convenient assembly.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. A bimetallic thermometer, comprising:
the temperature-sensing device comprises a measuring assembly and a control assembly, wherein the measuring assembly comprises a temperature-sensing pipe and a bimetallic strip, the bimetallic strip is positioned in the temperature-sensing pipe, and the bimetallic strip is made of two metals made of different materials;
the indicating assembly comprises a corner spring and a machine core, one end of the corner spring is connected with the bimetallic strip, the other end of the corner spring is connected with the machine core, and the machine core can indicate temperature;
the shell assembly comprises a shell and a cover, the shell is detachably and hermetically connected with the cover, the indicating assembly is positioned in a cavity formed by the shell and the cover, and the measuring assembly is connected with the shell assembly; and a cavity enclosed by the meter shell and the meter cover is filled with shock-proof oil.
2. The bimetallic thermometer of claim 1, wherein: the bimetallic strip is spiral and is coaxially arranged with the temperature sensing pipe.
3. The bimetallic thermometer of claim 2, wherein: one end of the bimetallic strip is connected with the corner spring by a connecting wire, the other end of the bimetallic strip is connected with a lower blocking block, and the lower blocking block is positioned in the temperature sensing pipe; the connecting wire and the lower blocking block are respectively connected with the connecting wire in a spot welding mode.
4. The bimetallic thermometer of claim 3, wherein: the temperature sensing pipe utilize the spliced pole with the watchcase links to each other, the temperature sensing pipe utilize installation external nut with the spliced pole links to each other, the one end suit of spliced pole in the outside of temperature sensing pipe, installation external nut with spliced pole threaded connection, installation external nut can fix the temperature sensing pipe with the relative position of spliced pole, the other end of spliced pole with the watchcase links to each other, the spliced pole is connected with coupling nut, coupling nut can fix the spliced pole with the relative position of watchcase, the connecting wire stretch into in the watchcase with the corner spring links to each other.
5. The bimetallic thermometer of claim 4, wherein: the watch case, the watch cover, the temperature sensing tube, the connecting wire and the connecting column are all made of stainless steel.
6. The bimetallic thermometer of claim 1, wherein: the movement comprises a pointer, the pointer is located in the hollow portion of the watch cover, and the movement can drive the pointer to rotate relative to the watch cover.
7. The bimetallic thermometer of claim 6, wherein: glass is embedded on one side, far away from the watch case, of the watch cover, a rubber ring is arranged between the watch cover and the glass, a lining ring is arranged between the watch cover and the watch case, and the pointer is arranged right opposite to the glass.
8. The bimetallic thermometer of claim 1, wherein: the watchcase and the watch cover are in interference fit, and the watchcase is connected with the watch cover in a clamping mode.
9. The bimetallic thermometer of claim 1, wherein: the watch cover is provided with a sunken structure facing the direction of the watch case, the watch case is provided with an oil filling port, the oil filling port is communicated with the watch case and a cavity enclosed by the watch cover, and an oil filling plug is arranged at the oil filling port.
10. The bimetallic thermometer of claim 1, wherein: the watchcase is connected with a signboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111348142.3A CN114046893A (en) | 2021-11-15 | 2021-11-15 | Bimetal thermometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111348142.3A CN114046893A (en) | 2021-11-15 | 2021-11-15 | Bimetal thermometer |
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| Publication Number | Publication Date |
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| CN114046893A true CN114046893A (en) | 2022-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111348142.3A Pending CN114046893A (en) | 2021-11-15 | 2021-11-15 | Bimetal thermometer |
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| CN (1) | CN114046893A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115615A (en) * | 2015-08-17 | 2015-12-02 | 安徽电气集团股份有限公司 | A shock-proof type high precision bimetal thermometer |
| CN204831593U (en) * | 2015-07-30 | 2015-12-02 | 安徽天康股份有限公司 | Earthquake resistance type electric contact bimetal thermometer |
| CN208140267U (en) * | 2017-12-24 | 2018-11-23 | 郑州椿长仪器仪表有限公司 | The oil-filled bimetallic thermometer of inner guide type |
| CN211978149U (en) * | 2020-03-30 | 2020-11-20 | 江苏中仪仪表集团有限公司 | High-precision bimetal thermometer |
| CN214407802U (en) * | 2021-02-05 | 2021-10-15 | 红旗仪表有限公司 | Bimetal thermometer |
-
2021
- 2021-11-15 CN CN202111348142.3A patent/CN114046893A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204831593U (en) * | 2015-07-30 | 2015-12-02 | 安徽天康股份有限公司 | Earthquake resistance type electric contact bimetal thermometer |
| CN105115615A (en) * | 2015-08-17 | 2015-12-02 | 安徽电气集团股份有限公司 | A shock-proof type high precision bimetal thermometer |
| CN208140267U (en) * | 2017-12-24 | 2018-11-23 | 郑州椿长仪器仪表有限公司 | The oil-filled bimetallic thermometer of inner guide type |
| CN211978149U (en) * | 2020-03-30 | 2020-11-20 | 江苏中仪仪表集团有限公司 | High-precision bimetal thermometer |
| CN214407802U (en) * | 2021-02-05 | 2021-10-15 | 红旗仪表有限公司 | Bimetal thermometer |
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Application publication date: 20220215 |