Thermocouple thermometer structure

Abstract

The utility model relates to the field of temperature measuring instruments, and discloses a thermocouple thermometer structure, which relates to the field of temperature measuring instruments, and comprises a protection tube, a junction box is arranged at the top of the protection tube, a thermocouple connecting wire is arranged on the junction box, the other end of the thermocouple connecting wire is connected with a measuring instrument, and a supporting assembly capable of being expanded towards the circumference is arranged on the junction box; according to the application, the supporting assembly which can be unfolded towards the circumference is arranged on the junction box, and when the thermocouple thermometer is held by a person to detect the temperature of a high-temperature environment, the thermocouple thermometer is placed on a device needing temperature measurement through the supporting assembly which is unfolded towards the circumference, so that the temperature measurement efficiency is improved on the basis of keeping the flexibility of the thermocouple thermometer. The situation that a worker is injured in a high-temperature environment due to the fact that the thermal response time of the thermocouple thermometer is long is avoided, meanwhile, the situation that the thermocouple thermometer shakes during temperature measurement due to the fact that the high-temperature environment exceeds the limitation borne by workers can be avoided, and the measurement stability of the thermocouple thermometer can be kept.

Description

Technical Field

[0001] This application relates to the field of temperature measuring instruments, and particularly to a structure of a thermocouple thermometer. Background Art

[0002] A thermocouple thermometer is a temperature measuring instrument based on the thermoelectric effect. It consists of three parts: a thermocouple, a measuring instrument, and a wire connecting the thermocouple and the measuring instrument. It is formed by welding two conductors A and B made of different materials. The welded end is inserted into the measured medium to sense the measured temperature, which is called the working end or hot end of the thermocouple, and the other end is connected to the wire, which is called the cold end or free end.

[0003] Thermocouple thermometers play an important role in environmental protection detection. They are mainly used to monitor the temperature in various environments and industrial processes to ensure compliance with environmental protection regulations, optimize resource utilization, and reduce environmental pollution. When the detection space is narrow, the interior of the detection equipment is complex, or the measurement distance is far, the staff often measures the temperature by holding the temperature measuring rod of the thermocouple thermometer. The method of measuring temperature with a handheld thermocouple thermometer is more flexible and convenient. Especially in cases such as overheating warnings of equipment and temperature reconnaissance in the early stage of a fire, the handheld thermocouple thermometer can be quickly deployed for temperature measurement to help evaluate the situation and guide emergency handling.

[0004] However, since the thermocouple thermometer has a certain thermal response time when measuring temperature, when in a high-temperature environment, manual handheld measurement may expose the operator to safety hazards and pose a risk of injury. At the same time, due to the limitation of the temperature that can be tolerated by humans, it may cause the temperature measurement position to shift, thereby affecting the accuracy and stability of the measurement. To solve the above problems, a structure of a thermocouple thermometer is proposed.

[0005] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Utility Model

[0006] To solve the problems of temperature measuring instruments, this application provides a structure of a thermocouple thermometer.

[0007] The structure of a thermocouple thermometer provided by this application adopts the following technical solutions:

[0008] A structure of a thermocouple thermometer includes a protective tube. A junction box is provided at the top of the protective tube. A thermocouple wiring is provided on the junction box. The other end of the thermocouple wiring is connected to a measuring instrument. A support assembly that can be unfolded in a circumferential direction is provided on the junction box.

[0009] Preferably, the support assembly includes a threaded cylinder, a rotating cylinder, a main support frame, an auxiliary support, and a rotating shaft. The main support frame rotates on the threaded cylinder. The threaded cylinder is threadedly connected to the junction box. The rotating cylinder is rotatably connected to the junction box. One end of the auxiliary support is rotatably connected to the rotating cylinder, and the other end of the auxiliary support is rotatably provided with a rotating shaft.

[0010] Preferably, a waterproof sleeve is provided on the junction box.

[0011] Preferably, an external thread is provided on the outer surface of the junction box, and an internal thread is provided on the inner side of the threaded cylinder. The junction box and the threaded cylinder are threadedly connected through the external thread and the internal thread.

[0012] Preferably, a sliding groove is provided on the junction box, and a ball is provided in the rotating cylinder. The ball slides in the sliding groove.

[0013] Preferably, a plurality of rotating grooves are circumferentially provided on both the threaded cylinder and the rotating cylinder. The main support frame is rotatably arranged in the rotating groove on the threaded cylinder, and the auxiliary support rotates in the rotating groove on the rotating cylinder.

[0014] In summary, compared with the related art, the present utility model has the following beneficial effects:

[0015] By providing a support assembly that can be unfolded circumferentially on the junction box, when manually holding a thermocouple thermometer to detect the temperature in a high-temperature environment, the thermocouple thermometer can be placed on the device to be measured through the circumferentially unfolded support assembly. Compared with the related art, on the basis of maintaining the flexibility of the thermocouple thermometer, it is possible to avoid the situation that the staff is injured in a high-temperature environment due to the long thermal response time of the thermocouple thermometer, and at the same time, it is possible to avoid the situation that the thermocouple thermometer shakes during temperature measurement due to the high-temperature environment exceeding the limit that can be tolerated by humans, which is beneficial to maintaining the stability of the temperature measurement of the thermocouple thermometer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall unfolded structural schematic diagram of the application embodiment;

[0017] Figure 2 is the overall structural schematic diagram of the application embodiment;

[0018] Figure 3 is the structural schematic diagram of the thermocouple temperature sensing assembly of the application embodiment;

[0019] Figure 4 is the structural schematic diagram of the support assembly of the application embodiment.

[0020] Description of reference numerals: 1. Protection tube; 2. Junction box; 3. Thermocouple wiring; 4. Threaded cylinder; 5. Rotating cylinder; 6. Main support frame; 7. Auxiliary support; 8. Rotating shaft; 9. Waterproof sleeve; 10. Chute; 11. Ball. Specific embodiments

[0021] The following further elaborates on this application in conjunction with the attached Figures 1-4 drawings.

[0022] An embodiment of this application discloses a thermocouple thermometer structure. Referring to Figures 1-4 , a thermocouple thermometer structure includes a protection tube 1. A junction box 2 is provided at the top of the protection tube 1. A thermocouple wiring 3 is provided on the junction box 2. The other end of the thermocouple wiring 3 is connected to a measuring instrument. A support assembly that can expand circumferentially is provided on the junction box 2;

[0023] It should be noted that the model of the measuring instrument can be AZZ8821;

[0024] It should be further noted that the thermocouple thermometer is composed of a protection tube 1, a junction box 2, and a measuring instrument. The junction box 2 is connected to the measuring instrument (not shown in the figure) through the thermocouple wiring 3. The thermoelectric electrode for sensing temperature is located inside the protection tube 1 (not shown in the figure);

[0025] By adopting the above technical solution, the junction box 2 is placed on the device to be measured through the circumferentially expanding support assembly, so that the protection tube 1 and the thermoelectric electrode inside it penetrate into the environment to be measured, avoiding harm to the test personnel due to the high-temperature environment.

[0026] Referring to Figure 1 , 2 , the support assembly includes a threaded cylinder 4, a rotating cylinder 5, a main support frame 6, an auxiliary support 7, and a rotating shaft 8. A plurality of rotating grooves are circumferentially formed on both the threaded cylinder 4 and the rotating cylinder 5. The main support frame 6 is rotatably arranged in the rotating groove on the threaded cylinder 4. The auxiliary support 7 rotates in the rotating groove on the rotating cylinder 5. The rotating cylinder 5 is rotatably connected to the junction box 2. One end of the auxiliary support 7 is rotatably connected to the rotating cylinder 5. The other end of the auxiliary support 7 is rotatably provided with a rotating shaft 8. External threads are provided on the outer surface of the junction box 2, and internal threads are provided inside the threaded cylinder 4. The junction box 2 and the threaded cylinder 4 are threadedly connected through the external threads and the internal threads;

[0027] By adopting the above technical solution, during use, the threaded cylinder 4 is rotated to make the threaded cylinder 4 approach the rotating cylinder 5. The rotating cylinder 5 rotates along the outer surface of the junction box 2, causing the main support frame 6 to expand in the circumferential direction of the threaded cylinder 4, playing a supporting role for the junction box 2. Thus, the junction box 2 can be placed on the device to be measured, enabling the protection tube 1 to penetrate into the environment to be measured, avoiding harm to the test personnel due to the high-temperature environment.

[0028] Referring toFigure 1 , 2 , a waterproof sleeve 9 is provided on the junction box 2;

[0029] It should be noted that the thermocouple thermometer's thermal electrodes are sensitive to moisture. Direct contact with moisture may cause short circuits, corrosion, or a decrease in insulation performance, affecting the measurement accuracy.

[0030] By adopting the above technical solution, the waterproof sleeve 9 can effectively isolate moisture and ensure the stability of the measurement signal.

[0031] Referring to Figures 3-4 , a sliding groove 10 is formed on the junction box 2, and a ball 11 is provided inside the rotating cylinder 5. The ball 11 slides in the sliding groove 10;

[0032] By adopting the above technical solution, the ball 11 sliding in the sliding groove 10 reduces the friction force of the rotation of the rotating cylinder 5, which is beneficial to maintaining the stability of the rotation of the rotating cylinder 5.

[0033] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change;

[0034] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments of the present disclosure are involved. Other structures can refer to the usual designs. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0035] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0036] The above are all the preferred embodiments of this application and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A thermocouple thermometer structure, comprising a protection tube (1), characterized in that: A junction box (2) is provided on the top of the protection tube (1), a thermocouple connection (3) is provided on the junction box (2), the other end of the thermocouple connection (3) is connected to a measuring instrument, and a support component that can be expanded in a circumferential direction is provided on the junction box (2).

2. A thermocouple thermometer structure according to claim 1, characterized in that: The support assembly comprises a threaded barrel (4), a rotating barrel (5), a main support frame (6), an auxiliary support frame (7), and a rotating shaft (8); the main support frame (6) is rotatable on the threaded barrel (4); the threaded barrel (4) is threadedly connected to the junction box (2); the rotating barrel (5) is rotatably connected to the junction box (2); one end of the auxiliary support frame (7) is rotatably connected to the rotating barrel (5); and the other end of the auxiliary support frame (7) is rotatably provided with a rotating shaft (8).

3. A thermocouple thermometer structure according to claim 1, characterized in that: The junction box (2) is provided with a waterproof cover (9).

4. A thermocouple thermometer structure according to claim 2, characterized in that: The outer surface of the junction box (2) is provided with an external thread, the inner side of the threaded barrel (4) is provided with an internal thread, and the junction box (2) and the threaded barrel (4) are threadedly connected via the external thread and the internal thread.

5. A thermocouple thermometer structure according to claim 2, characterized in that: The junction box (2) is provided with a slide groove (10), and a ball (11) is provided in the rotating drum (5), and the ball (11) slides in the slide groove (10).

6. A thermocouple thermometer structure according to claim 2, characterized in that: The threaded barrel (4) and the rotating barrel (5) are both circumferentially provided with a plurality of rotation grooves; the main support frame (6) is rotatably arranged in the rotation groove on the threaded barrel (4); and the auxiliary support frame (7) is rotatably arranged in the rotation groove on the rotating barrel (5).

Images