Temperature measuring device

By adding corundum protective sleeves and protective sheaths to the thermocouples, the problem of slow response of thermocouples in high-temperature and highly corrosive environments is solved, realizing rapid response and long-life temperature measurement of thermocouples, and improving the stability and management efficiency of temperature measuring devices.

CN223691878UActive Publication Date: 2025-12-19CHINA UNIV OF PETROLEUM (EAST CHINA)
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Patent Information

Application Number
CN202520201095.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2025-12-19
Estimated Expiration
2035-02-08

AI Technical Summary

Technical Problem

Existing thermocouples cannot respond to temperature changes in a timely manner in high-temperature and highly corrosive environments, resulting in inaccurate temperature measurement and shortened service life.

Method used

The design employs corundum protective sleeve and sheath, combined with threaded post and rotating sleeve, to achieve rapid response and protection of the thermocouple, preventing mechanical damage and environmental pollution.

Benefits of technology

It improves the stability and lifespan of thermocouples in high-temperature environments, ensures the accuracy and stability of temperature measurements, reduces the impact of external factors on thermocouples, and enhances the standardization and efficiency of equipment management.

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Abstract

The utility model discloses a temperature measuring device, and relates to the technical field of temperature measurement. The temperature measuring device comprises a fixed frame, a temperature measuring assembly and a protection assembly, a movable block is arranged in the fixed frame, the temperature measuring assembly is arranged on the fixed frame, the temperature measuring assembly comprises a hollow sleeve, a threaded column and a thermocouple, the threaded column is arranged in the hollow sleeve, the thermocouple is fixedly installed at one end of the threaded column, and the thermocouple is fixedly installed on the outer wall of the threaded column. Through the arrangement of the temperature measuring assembly, the corundum material has good thermal conductivity and thermal shock resistance, the thermal hysteresis effect can be reduced to a certain extent, and the thermocouple can respond to the temperature change more quickly, so that the temperature change of the thermocouple is arranged in the corundum protective sleeve, and the thermocouple can still keep stable in a high-temperature environment; therefore, thermocouple damage or performance reduction caused by high temperature is avoided, the accuracy and stability of temperature measurement are ensured, and the service life of the thermocouple is prolonged.
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Description

TECHNICAL FIELD

[0001] The utility model relates to temperature measurement technical field, especially a kind of temperature measuring device. BACKGROUND

[0002] Thermocouple is the temperature measuring element commonly used in temperature measuring instrument, it utilizes the thermoelectric effect in physics to measure temperature, thermocouple is usually composed of hot electrode, insulating sleeve protection tube and terminal box etc.

[0003] After exploration analysis, there are the following shortcomings in actual use:

[0004] Part of existing thermocouple is directly exposed in measurement environment when using, especially when measurement environment is high temperature, strong corrosion and other adverse conditions, therefore thermocouple cannot respond temperature change in time when measuring temperature.

[0005] In view of the above, the present application proposes a kind of temperature measuring device to solve the above-mentioned problems. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a kind of temperature measuring device, can solve the problem that part of existing thermocouple is directly exposed in measurement environment when using, especially when measurement environment is high temperature, strong corrosion and other adverse conditions, therefore thermocouple cannot respond temperature change in time when measuring temperature.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of temperature measuring device, comprising:

[0008] Fixed frame, the inside of fixed frame is provided with movable block;

[0009] Temperature measuring component, it is set on fixed frame, temperature measuring component includes hollow sleeve, threaded column and thermocouple, the inside of hollow sleeve is provided with threaded column, and one end of threaded column is fixedly installed with thermocouple, and the outer wall of threaded column is fixedly installed with thermocouple;

[0010] Protection component, it is set on hollow sleeve, and protection component includes rotating sleeve and protective sleeve, and one end of rotating sleeve is fixedly installed with protective sleeve.

[0011] Preferably, the temperature measuring assembly further comprises a connecting block and a corundum protective sleeve, the connecting block is fixedly installed on the front side of the movable block, the outer wall of the hollow sleeve is fixedly installed on the front side of the connecting block, the thermocouple is located in the interior of the corundum protective sleeve and does not contact with the same, the corundum material has good thermal conductivity and thermal shock resistance, can reduce the thermal hysteresis effect to a certain extent, enables the thermocouple to respond to temperature change more quickly, and therefore, the thermocouple temperature change is arranged in the corundum protective sleeve, so that the thermocouple can still maintain stability in a high-temperature environment, avoids damage or performance reduction of the thermocouple due to high temperature, guarantees the accuracy and stability of temperature measurement, and therefore prolongs the service life of the thermocouple.

[0012] Preferably, the protection assembly further comprises a threaded block, one end of the rotating sleeve is rotatably installed on the inner wall of the hollow sleeve, the threaded block is screwedly installed on the outer wall of the threaded column, the outer wall of the threaded block is fixedly installed on the inner wall of the rotating sleeve, the threaded column, the thermocouple and the corundum protective sleeve are located in the interior of the rotating sleeve and the protection sleeve, the thermocouple and the corundum protective sleeve are usually used in a high-temperature or extreme environment and are prone to external physical impact, scratches or other mechanical damage, the thermocouple and the corundum protective sleeve are accommodated in the protection sleeve, damage can be effectively avoided, the service life of the thermocouple and the corundum protective sleeve is prolonged, dust, stains or other environmental factors can be avoided to affect the accuracy of the thermocouple and the corundum protective sleeve, and the thermocouple and the corundum protective sleeve are centrally accommodated, management and access are facilitated, work efficiency and standardization of equipment management are improved in an industrial environment, the service life and working stability of the thermocouple and the corundum protective sleeve are improved, and the influence of external factors on the performance of the thermocouple and the corundum protective sleeve is reduced.

[0013] Preferably, the other end of the threaded column is fixedly installed with a connecting wire, so that the threaded column is electrically connected.

[0014] Preferably, the rear side of the fixed frame is provided with a mounting plate, the rear side of the fixed frame is fixedly installed with a supporting rod, the interior of the mounting plate is provided with a movable plate, a circular groove is formed in the mounting plate and the movable plate, a ball head bearing is rotatably installed in the circular groove, the other end of the supporting rod is fixedly installed on the outer wall of the ball head bearing, and the movable plate and the mounting plate are fixedly installed through bolts, so that the fixed frame is installed on a mechanical arm.

[0015] Preferably, one side of the movable block is fixedly installed with a spring, and the other end of the spring is fixedly installed on the inner wall of one side of the fixed frame.

[0016] Compared with the prior art, the temperature measuring assembly has the advantages that:

[0017] (1) The temperature measuring device, through the cooperation of the connecting block, the hollow sleeve, the threaded column, the thermocouple and the corundum protective sleeve, the corundum material has good thermal conductivity and thermal shock resistance, which can reduce the thermal hysteresis effect to a certain extent, so that the thermocouple can respond to temperature changes more quickly, and therefore the thermocouple temperature change is arranged in the corundum protective sleeve, which can still maintain stability in a high temperature environment, avoid damage or performance degradation of the thermocouple due to high temperature, ensure the accuracy and stability of temperature measurement, thereby prolonging the service life of the thermocouple.

[0018] (2) The temperature measuring device, through the cooperation of the rotating sleeve, the protective sleeve and the threaded block, the thermocouple and the corundum protective sleeve are usually used in high temperature or extreme environment, and are easy to be subjected to external physical impact, scratching or other mechanical damage, by arranging them in the protective sleeve, the damage can be effectively avoided, the service life is prolonged, dust, stains or other environmental factors can be avoided to affect the accuracy, and the thermocouple and the corundum protective sleeve are centrally arranged, which is convenient for management and access, especially in industrial environment, which is helpful to improve work efficiency and standardization of equipment management, not only can improve the service life and working stability, but also can reduce the influence of external factors on the performance. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model is further illustrated below in combination with the drawings and examples:

[0020] Figure 1 The utility model is a three-dimensional Figure 1 ;

[0021] Figure 2 The utility model is a three-dimensional sectional view;

[0022] Figure 3 The utility model is a three-dimensional Figure 2 .

[0023] Fig. 1, fixed frame; 2, movable block; 3, connecting block; 4, hollow sleeve; 5, threaded column; 6, thermocouple; 7, corundum protective sleeve; 8, rotating sleeve; 9, protective sleeve; 10, threaded block; 11, connecting line; 12, support rod; 13, mounting plate; 14, ball bearing; 15, movable plate, 16, spring. DETAILED DESCRIPTION

[0024] In the description of the utility model, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right and the like based on the orientation or position relationship shown in the drawings, is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0025] Please refer to Figures 1-3 The utility model provides a technical scheme: a temperature measuring device, including fixed frame 1, temperature measuring component and protection component, the inside of fixed frame 1 is provided with movable block 2, temperature measuring component sets up on fixed frame 1, temperature measuring component includes hollow sleeve 4, threaded column 5 and thermocouple 6, the inside of hollow sleeve 4 is provided with threaded column 5, one end of threaded column 5 is fixedly installed with thermocouple 6, the outer wall of threaded column 5 is fixedly installed with thermocouple 6, protection component sets up on hollow sleeve 4, protection component includes rotating sleeve 8 and protection sleeve 9, one end of rotating sleeve 8 is fixedly installed with protection sleeve 9.

[0026] Further, temperature measuring component still includes connecting block 3 and corundum protection sleeve 7, connecting block 3 is fixedly installed on the front side of movable block 2, the outer wall of hollow sleeve 4 is fixedly installed with the front side of connecting block 3, thermocouple 6 is located in the inside of corundum protection sleeve 7 and does not contact with it, when needing to carry out temperature measurement, hold rotating sleeve 8 and rotate, make the rotation of rotating sleeve 8 drive threaded block 10 to rotate, to drive threaded column 5 to move, make the movement of threaded column 5 drive thermocouple 6 to move to the outside, corundum material has good thermal conductivity and heat shock resistance, can reduce this thermal hysteresis effect to a certain extent, make thermocouple 6 can respond to temperature change more quickly, therefore set up thermocouple 6 temperature change in corundum protection sleeve 7, can make it still keep stability under high temperature environment, avoid the damage or performance decline of thermocouple due to high temperature, guarantee the accuracy and stability of temperature measurement, to prolong the service life of thermocouple.

[0027] Further, protection component still includes threaded block 10, the other end of rotating sleeve 8 is rotatably installed on the inner wall of hollow sleeve 4, threaded block 10 is screwly installed on the outer wall of threaded column 5, the outer wall of threaded block 10 is fixedly installed with the inner wall of rotating sleeve 8, threaded column 5, thermocouple 6 and corundum protection sleeve 7 all are located in the inside of rotating sleeve 8 and protection sleeve 9, by rotating rotating sleeve 8, make thermocouple 6 and corundum protection sleeve 7 are stored to the inside of protection sleeve 9, thermocouple 6 and corundum protection sleeve 7 are usually used in high temperature or extreme environment, are vulnerable to external physical impact, scratch or other mechanical damage, store them in protection sleeve 9, can effectively avoid these damages, prolong its service life, can avoid dust, stain or other environmental factors influence its precision simultaneously, and thermocouple 6 and corundum protection sleeve 7 are stored centrally, are convenient for management, access, especially in industrial environment, help to improve work efficiency and the standardization of equipment management, not only can improve its service life and work stability, but also can reduce the influence of external factors on its performance.

[0028] Further, the other end of threaded column 5 is fixedly installed with connecting wire 11, which is set to facilitate the electrical connection of threaded column 5.

[0029] Further, the rear side of the fixed frame 1 is provided with a mounting plate 13, the rear side of the fixed frame 1 is fixedly installed with a support rod 12, the inside of the mounting plate 13 is provided with a movable plate 15, a circular groove is formed on the mounting plate 13 and the movable plate 15, a ball head bearing 14 is rotatably installed in the circular groove, the other end of the support rod 12 is fixedly installed with the outer wall of the ball head bearing 14, and the movable plate 15 is fixedly installed with the mounting plate 13 through bolts, which is convenient to install on a mechanical arm.

[0030] Secondly, one side of the movable block 2 is fixedly installed with a spring 16, and the other end of the spring 16 is fixedly installed with the inner wall of one side of the fixed frame 1.

[0031] Working principle: when in use, the device is installed on a mechanical arm through the mounting plate 13, when temperature measurement is needed, the rotating sleeve 8 is held and rotated, so that the rotation of the rotating sleeve 8 drives the threaded block 10 to rotate, thereby driving the threaded column 5 to move, so that the movement of the threaded column 5 drives the thermocouple 6 to move to the outside, and temperature measurement work can be performed, after temperature measurement is completed, the rotating sleeve 8 is rotated, so that the thermocouple 6 and the corundum protective sleeve 7 are stored in the inside of the protective sleeve 9.

[0032] The above describes the embodiments of the utility model in detail in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A temperature measuring device, characterized by, The utility model relates to a temperature measuring device, including: The inside of fixed frame (1) is provided with movable block (2); Temperature measuring assembly is arranged on fixed frame (1), and temperature measuring assembly includes hollow sleeve (4), threaded column (5) and thermocouple (6), the inside of hollow sleeve (4) is provided with threaded column (5), one end of threaded column (5) is fixedly installed with thermocouple (6), and the outer wall of threaded column (5) is fixedly installed with thermocouple (6); Protection assembly is arranged on hollow sleeve (4), and protection assembly includes rotating sleeve (8) and protection sleeve (9), one end of rotating sleeve (8) is fixedly installed with protection sleeve (9).

2. The temperature measuring device according to claim 1, characterized in that: Temperature measuring assembly still includes connecting block (3) and corundum protection sleeve (7), connecting block (3) is fixedly installed on the front side of movable block (2), the outer wall of hollow sleeve (4) is fixedly installed with the front side of connecting block (3), and thermocouple (6) is located in the inside of corundum protection sleeve (7) and does not contact with it.

3. The temperature measuring device according to claim 2, characterized in that: Protection assembly still includes threaded block (10), the other end of rotating sleeve (8) is rotatably installed on the inner wall of hollow sleeve (4), threaded block (10) is screwly installed on the outer wall of threaded column (5), the outer wall of threaded block (10) is fixedly installed with the inner wall of rotating sleeve (8), and threaded column (5), thermocouple (6) and corundum protection sleeve (7) are all located in the inside of rotating sleeve (8) and protection sleeve (9).

4. The temperature measuring device according to claim 3, characterized in that: The other end of threaded column (5) is fixedly installed with connecting line (11).

5. The temperature measuring device of claim 4, wherein: The rear side of fixed frame (1) is provided with mounting plate (13), the rear side of fixed frame (1) is fixedly installed with support rod (12), the inside of mounting plate (13) is provided with movable plate (15), and the circular groove is formed in mounting plate (13) and movable plate (15), ball bearing (14) is rotatably installed in circular groove, the other end of support rod (12) is fixedly installed with the outer wall of ball bearing (14), and movable plate (15) and mounting plate (13) are fixedly installed by bolt.

6. The temperature measuring device of claim 5, wherein: One side of movable block (2) is fixedly installed with spring (16), and the other end of spring (16) is fixedly installed with the inner wall of one side of fixed frame (1).