CN221260140U - Thermocouple structure for temperature measuring instrument - Google Patents
Thermocouple structure for temperature measuring instrument Download PDFInfo
- Publication number
- CN221260140U CN221260140U CN202323359177.4U CN202323359177U CN221260140U CN 221260140 U CN221260140 U CN 221260140U CN 202323359177 U CN202323359177 U CN 202323359177U CN 221260140 U CN221260140 U CN 221260140U
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- junction box
- thermocouple
- box body
- sleeve
- temperature measuring
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- 230000001681 protective effect Effects 0.000 claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 230000006835 compression Effects 0.000 claims abstract description 13
- 238000007906 compression Methods 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims description 17
- 239000012212 insulator Substances 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 238000005336 cracking Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 4
- 238000002788 crimping Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model relates to the technical field of temperature measuring instruments, and provides a thermocouple structure for a temperature measuring instrument, which comprises a junction box body and an outgoing line sleeve, wherein the outgoing line sleeve is fixed on one side of the junction box body, a fixing mechanism is arranged on the outer side wall of an upper protective sleeve, the fixing mechanism comprises a compression-resistant pipe, a flange plate, a mounting hole and a bolt, the compression-resistant pipe is arranged on the outer side wall of the upper protective sleeve, the flange plate is fixed at the bottom end of the compression-resistant pipe, the mounting hole is uniformly arranged at the edge position inside the flange plate, and the bolt is arranged inside the mounting hole. According to the utility model, the risk of cracking and the like at the joint of the flange plate and the upper protective sleeve caused by excessive internal pressure of the upper protective sleeve is prevented by the pressure-resistant pipe, the connecting pipe in the flange plate is welded with the upper protective sleeve, the flange plate is internally provided with the mounting hole, and the flange plate can be fixed on the surface of an object to be measured through the bolt, so that the measuring mechanism can conveniently measure the object to be measured, and the fixing firmness is improved.
Description
Technical Field
The utility model relates to the technical field of temperature measuring instruments, in particular to a thermocouple structure for a temperature measuring instrument.
Background
Thermocouples are a type of sensor that measures temperature and consist of wires of two different metals that produce a potential difference when the temperature changes. The thermocouple structure for the temperature measuring instrument has the advantages of convenient use, simple structure and high measurement precision, so that the thermocouple structure can be widely applied in the fields of industry, medical treatment, scientific research and the like;
Therefore, the patent with publication number CN106996836a discloses a thermocouple structure for heat conduction measurement, which comprises a wire holder, wherein the top of the wire holder is provided with a junction box, the bottom of the wire holder is vertically connected with a protective sleeve, the pipe orifice at the lower end of the protective sleeve is provided with a plug made of insulating heat conduction material, a pair of thermocouple wires are further arranged in the protective sleeve, the lower ends of the two thermocouple wires extend into the plug and are connected into a whole in the plug to form a measuring end, the upper ends of the thermocouple wires extend into the junction box respectively and are connected onto an electric contact, one side of the junction box is provided with a wiring terminal, and the wiring terminal is connected with the electric contact through a compensation wire.
The thermocouple structure for heat conduction measurement is inconvenient to fix in the use process, the thermocouple is inconvenient to fix on the surface of an object to be measured, insulation is not arranged, the contact point of the thermocouple wire is easy to short-circuit, poor contact occurs, and the measurement accuracy is affected.
Disclosure of utility model
The utility model aims to provide a thermocouple structure for a temperature measuring instrument, which is used for solving the defects that the conventional thermocouple structure for the temperature measuring instrument is inconvenient to fix and is not provided with insulation.
In order to solve the technical problems, the utility model provides the following technical scheme: a thermocouple structure for a temperature measuring instrument comprises a junction box body and an outgoing line sleeve;
An outgoing line sleeve is fixed on one side of the junction box body, a lead outgoing port is arranged in the outgoing line sleeve, a junction box top cover is installed at the top end of the junction box body, a handle is fixed at the top end of the junction box top cover, and a fixing sleeve ring is arranged at the bottom end of the junction box top cover;
The bottom of the junction box body is provided with an upper protective sleeve, a fixing mechanism is arranged on the outer side wall of the upper protective sleeve, the fixing mechanism comprises a compression-resistant pipe, a flange plate, a mounting hole and a bolt, the compression-resistant pipe is arranged on the outer side wall of the upper protective sleeve, the flange plate is fixed at the bottom of the compression-resistant pipe, the mounting hole is uniformly formed in the edge position of the inner part of the flange plate, and the bolt is arranged in the mounting hole;
The inside of going up the protective sheath is provided with down the protective sheath, the inside of protective sheath is provided with measuring mechanism down, the inside of terminal box body is provided with the wiring insulation seat, the top of wiring insulation seat is provided with the terminal.
Preferably, a sealing ring is arranged at one end of the outgoing line sleeve, which is far away from the junction box body, one end of the lead wire outlet penetrates through the sealing ring, and the other end of the lead wire outlet is fixedly connected with one side of the junction box body.
Preferably, the inner wall of the fixed lantern ring is provided with internal threads, and the outer wall of the top of the junction box body is provided with external threads.
Preferably, the measuring mechanism comprises an insulating sleeve, a thermocouple core, an insulator and a measuring end, wherein the insulating sleeve is arranged in the lower protective sleeve, the thermocouple core is arranged in the insulating sleeve, the insulator is uniformly arranged on the outer wall of the thermocouple core in the insulating sleeve, and the insulator is arranged at the bottom end of the thermocouple core.
Preferably, the inside of going up protective sheath and lower protective sheath all runs through there is the insulating cover, the top of insulating cover extends to the inside of terminal box body and with the bottom fixed connection of the insulating seat of wiring.
Preferably, the thermocouple cores are provided with two groups, and the thermocouple cores are symmetrically distributed in the insulating sleeve.
Preferably, one end of the thermocouple core extends to the inside of the junction box body, penetrates through the wiring insulation seat and is fixedly connected with the bottom end of the wiring terminal, and the insulators are distributed on the outer wall of the thermocouple core at equal intervals.
The thermocouple structure for the temperature measuring instrument provided by the utility model has the advantages that:
The measuring mechanism is arranged, two groups of thermocouple cores are connected together to form a closed loop, the bottom ends of the thermocouple cores form a measuring end in a crimping mode, the measuring end is positioned in the environment of measuring temperature to measure an object to be measured, and the insulating sleeve outside the thermocouple cores and the insulator on the outer wall of the thermocouple cores are used for isolating two hot spot poles, so that short circuit is prevented, and the measuring precision is ensured;
Through being provided with fixed establishment, prevent through the resistance to compression pipe that the too big and risk such as crack appear in flange dish and last protective sheath junction of going up protective sheath internal pressure, the connecting pipe in the flange dish and last protective sheath welding have been seted up the mounting hole in the flange dish, can fix the flange dish on the surface of the thing that awaits measuring through the bolt, make things convenient for measuring mechanism to measure the thing that awaits measuring, improve fixed fastness.
Drawings
FIG. 1 is a schematic cross-sectional elevation view of the present utility model;
FIG. 2 is a schematic view of the three-dimensional structure of the fixing mechanism (9) of the present utility model;
FIG. 3 is a schematic cross-sectional elevation view of the fixing mechanism (9) of the present utility model;
FIG. 4 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;
fig. 5 is an enlarged schematic view of the structure of fig. 1B according to the present utility model.
Reference numerals in the drawings illustrate: 1. a junction box body; 2. a lead-out wire sleeve; 3. a wire outlet; 4. a junction box top cover; 5. a handle; 6. a fixed collar; 7. a measuring mechanism; 701. an insulating sleeve; 702. a thermocouple core; 703. an insulator; 704. a measuring end; 8. an upper protective sleeve; 9. a fixing mechanism; 901. a pressure-resistant tube; 902. a flange plate; 903. a mounting hole; 904. a bolt; 10. a lower protective sleeve; 11. binding posts; 12. and a wiring insulation seat.
Description of the embodiments
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, the thermocouple structure for a temperature measuring instrument provided by the utility model comprises a junction box body 1 and an outgoing line sleeve 2.
Referring to fig. 1, 4 and 5, a lead-out wire bushing 2 is fixed at one side of a junction box body 1, a lead-out wire outlet 3 is provided in the interior of the lead-out wire bushing 2, a sealing ring is provided at one end of the lead-out wire bushing 2 far away from the junction box body 1, one end of the lead-out wire outlet 3 passes through the sealing ring, the other end of the lead-out wire outlet 3 is fixedly connected with one side of the junction box body 1, a junction box top cover 4 is mounted at the top end of the junction box top cover 4, a handle 5 is fixed at the top end of the junction box top cover 4, a fixing collar 6 is provided at the bottom end of the junction box top cover 4, an internal thread is provided on the inner wall of the fixing collar 6, an external thread is provided on the outer wall of the top of the junction box body 1, an upper protective sleeve 8 is provided at the bottom end of the junction box body 1, a lower protective sleeve 10 is provided in the interior of the upper protective sleeve 10, a measuring mechanism 7 is provided in the interior of the lower protective sleeve 10, the measuring mechanism 7 comprises an insulating sleeve 701, a thermocouple core 702, an insulator 703 and a measuring end 704, the insulation sleeve 701 is arranged in the lower protection sleeve 10, a thermocouple core 702 is arranged in the insulation sleeve 701, an insulator 703 is uniformly arranged on the outer wall of the thermocouple core 702 in the insulation sleeve 701, the insulator 703 is arranged at the bottom end of the thermocouple core 702, the insulation sleeve 701 penetrates through the interiors of the upper protection sleeve 8 and the lower protection sleeve 10, the top end of the insulation sleeve 701 extends to the inside of the junction box body 1 and is fixedly connected with the bottom end of the junction insulation seat 12, the thermocouple core 702 is provided with two groups, the thermocouple cores 702 are symmetrically distributed in the inside of the insulation sleeve 701, one end of the thermocouple core 702 extends to the inside of the junction box body 1 and penetrates through the junction insulation seat 12 and is fixedly connected with the bottom end of the junction post 11, the insulator 703 is distributed at equal intervals on the outer wall of the thermocouple core 702, the junction box body 1 is internally provided with the junction insulation seat 12, the top of the wire insulation seat 12 is provided with a wiring terminal 11.
The two groups of thermocouple cores 702 are connected together to form a closed loop, the bottom end of the thermocouple cores 702 forms a measuring end 704 in a crimping manner, the measuring end 704 is positioned in a measuring temperature environment to measure an object to be measured, and the insulating sleeve 701 outside the thermocouple cores 702 and the insulator 703 on the outer wall of the thermocouple cores 702 are used for isolating two hot spot poles, so that short circuit is prevented, and measuring accuracy is ensured.
Referring to fig. 2 and 3, a fixing mechanism 9 is installed on the outer side wall of the upper protective sleeve 8, the fixing mechanism 9 includes a compression-resistant pipe 901, a flange 902, a mounting hole 903 and a bolt 904, the compression-resistant pipe 901 is installed on the outer side wall of the upper protective sleeve 8, the flange 902 is fixed at the bottom end of the compression-resistant pipe 901, the mounting hole 903 is uniformly arranged at the edge position inside the flange 902, and the bolt 904 is arranged inside the mounting hole 903.
The pressure-resistant pipe 901 is used for preventing risks such as cracks and the like at the joint of the flange 902 and the upper protective sleeve 8 caused by overlarge internal pressure of the upper protective sleeve 8, a connecting pipe in the flange 902 is welded with the upper protective sleeve 8, a mounting hole 903 is formed in the flange 902, the flange 902 can be fixed on the surface of an object to be measured through a bolt 904, and the measuring mechanism 7 is convenient for measuring the object to be measured, so that the fixing firmness is improved.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. A thermocouple structure for a temperature measuring instrument comprises a junction box body (1) and an outgoing line sleeve (2);
the method is characterized in that:
one side of the junction box body (1) is fixed with an outgoing line sleeve (2), a lead outgoing port (3) is arranged in the outgoing line sleeve (2), a junction box top cover (4) is arranged at the top end of the junction box body (1), a handle (5) is fixed at the top end of the junction box top cover (4), and a fixing collar (6) is arranged at the bottom end of the junction box top cover (4);
The junction box comprises a junction box body (1), wherein an upper protective sleeve (8) is arranged at the bottom end of the junction box body (1), a fixing mechanism (9) is arranged on the outer side wall of the upper protective sleeve (8), the fixing mechanism (9) comprises a compression-resistant pipe (901), a flange plate (902), a mounting hole (903) and a bolt (904), the compression-resistant pipe (901) is arranged on the outer side wall of the upper protective sleeve (8), the flange plate (902) is fixed at the bottom end of the compression-resistant pipe (901), the mounting hole (903) is uniformly arranged at the edge position inside the flange plate (902), and the bolt (904) is arranged inside the mounting hole (903);
The inside of going up protective sheath (8) is provided with protective sheath (10) down, the inside of protective sheath (10) is provided with measuring mechanism (7) down, the inside of terminal box body (1) is provided with wiring insulating seat (12), the top of wiring insulating seat (12) is provided with terminal (11).
2. A thermocouple structure for a temperature measuring instrument according to claim 1, characterized in that: one end of the outgoing line sleeve (2) far away from the junction box body (1) is provided with a sealing ring, one end of the lead wire outlet (3) penetrates through the sealing ring, and the other end of the lead wire outlet (3) is fixedly connected with one side of the junction box body (1).
3. A thermocouple structure for a temperature measuring instrument according to claim 1, characterized in that: the inner wall of the fixed lantern ring (6) is provided with internal threads, and the outer wall of the top of the junction box body (1) is provided with external threads.
4. A thermocouple structure for a temperature measuring instrument according to claim 1, characterized in that: the measuring mechanism (7) comprises an insulating sleeve (701), a thermocouple core (702), an insulator (703) and a measuring end (704), wherein the insulating sleeve (701) is arranged inside a lower protective sleeve (10), the thermocouple core (702) is arranged inside the insulating sleeve (701), the insulator (703) is uniformly arranged on the outer wall of the thermocouple core (702) inside the insulating sleeve (701), and the insulator (703) is arranged at the bottom end of the thermocouple core (702).
5. The thermocouple structure for a temperature measuring instrument according to claim 4, wherein: the inside of going up protective sheath (8) and lower protective sheath (10) all runs through insulating cover (701), the top of insulating cover (701) extends to inside of terminal box body (1) and with the bottom fixed connection of wiring insulating seat (12).
6. The thermocouple structure for a temperature measuring instrument according to claim 4, wherein: the thermocouple cores (702) are arranged in two groups, and the thermocouple cores (702) are symmetrically distributed in the insulating sleeve (701).
7. The thermocouple structure for a temperature measuring instrument according to claim 4, wherein: one end of the thermocouple core (702) extends to the inside of the junction box body (1) to penetrate through the wiring insulation seat (12) and is fixedly connected with the bottom end of the wiring terminal (11), and the insulators (703) are distributed on the outer wall of the thermocouple core (702) at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323359177.4U CN221260140U (en) | 2023-12-11 | 2023-12-11 | Thermocouple structure for temperature measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323359177.4U CN221260140U (en) | 2023-12-11 | 2023-12-11 | Thermocouple structure for temperature measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221260140U true CN221260140U (en) | 2024-07-02 |
Family
ID=91631787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323359177.4U Active CN221260140U (en) | 2023-12-11 | 2023-12-11 | Thermocouple structure for temperature measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221260140U (en) |
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2023
- 2023-12-11 CN CN202323359177.4U patent/CN221260140U/en active Active
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