Multi-step temperature sensor

Abstract

The utility model relates to the related technical field of temperature sensors, in particular to a multi-step temperature sensor, which comprises a connecting protection tube, a temperature measuring tube is fixedly connected to the inner side surface of the connecting protection tube, and a middle step temperature measuring point is fixedly connected to one side surface of the temperature measuring tube. The surface of one side of the middle step temperature measuring point is fixedly connected with a middle temperature measuring head. According to the multi-step temperature sensor, through the arrangement of the connection protection tube, the temperature measurement tube, the middle step temperature measurement point, the middle temperature measurement head, the output cable, the cable shell, the connection shell, the front end temperature measurement head and the front end temperature measurement point, the red copper probe is fast in temperature sensing, high in sensitivity and convenient to install, and the red copper is soft and good in sealing performance; and the middle temperature probe adopts a semicircular protrusion, so that the resistance is small, the protruding circular surface temperature sensing surface is large, the effect is good, the sensitivity is high, the hollow rod is light and convenient, threading is convenient, the cable can be protected from being worn, and the positioning is accurate.

Description

Technical Field

[0001] The utility model relates to the technical field related to temperature sensors, in particular to a multi-step temperature sensor. Background Art

[0002] A temperature sensor is a sensor that can sense temperature and convert it into a usable output signal. It is the core part of a temperature measuring instrument and comes in many varieties. It can be divided into two categories: contact and non-contact according to the measurement method. It can be divided into two categories: thermal resistors and thermocouples according to the characteristics of sensor materials and electronic components. With the rapid development of modern science and technology, the application scope of temperature sensors is becoming increasingly wide, and the requirements for temperature measurement accuracy and reliability are also becoming higher and higher. In order to facilitate the measurement of temperatures at different heights, multi-step temperature sensors are particularly needed.

[0003] However, existing temperature sensors are difficult to monitor the internal temperature of large amounts of deposits, such as coal piles, food silos, and cotton bale piles, because the temperature of these materials is too high. At the same time, multiple wiring harnesses are placed inside the materials during detection, the positioning is not accurate, the cables are easily damaged, and maintenance and replacement are troublesome. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-step temperature sensor to solve the problem that the existing temperature sensors proposed in the above background technology are difficult to monitor the internal temperature of large amounts of deposits, such as coal piles, food bins, cotton bale piles, etc., because the temperature of these materials is too high. At the same time, when detecting, multiple wire harnesses are placed inside the material, the positioning is not accurate, the cables are easily damaged, and the maintenance and replacement are troublesome.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-step temperature sensor, comprising a connecting protection tube, the inner surface of the connecting protection tube is fixedly connected to a temperature measuring tube, one side surface of the temperature measuring tube is fixedly connected to an intermediate step temperature measurement point, one side surface of the intermediate step temperature measurement point is fixedly connected to an intermediate temperature measuring head, one end of the intermediate temperature measuring head is fixedly connected to an output cable, the outer surface of the output cable is fixedly sleeved with a cable housing, one end surface of the cable housing is fixedly sleeved with a connecting shell, one end surface of the connecting shell is fixedly connected to a front-end temperature measuring head, and the outer surface of the front-end temperature measuring head is fixedly connected to the front-end temperature measurement point.

[0006] Preferably, the output cables are connected one by one to the intermediate temperature measuring heads, and each group of output cables is connected to a cable housing.

[0007] Preferably, the materials of the intermediate temperature measuring head and the front temperature measuring point are both copper, and the outer wall size of the cable housing matches the inner wall size of the connecting housing.

[0008] Preferably, a plurality of groups of intermediate step temperature measurement points are provided, and the intermediate step temperature measurement points are symmetrically distributed on both sides of the temperature measurement tube.

[0009] Preferably, the connection protection tube can be spliced ​​in multiple layers, and the outer wall size of the front-end temperature measuring head matches the inner wall size of the front-end temperature measuring point.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the multi-step temperature sensor can be connected in multiple stages by connecting the protection tube, the temperature measuring tube, the intermediate step temperature measuring point, the intermediate temperature measuring head, the output cable, the cable housing, the connecting shell, the front-end temperature measuring head and the front-end temperature measuring point. The length can be set as required, and the number of measuring points can be set as required. It is modular, and the red copper probe has fast temperature sensing, high sensitivity, and convenient installation. Moreover, the red copper is soft and has good sealing. The intermediate temperature probe adopts a semicircular protrusion, which has small resistance and a large temperature sensing surface of the protruding circular surface, good effect and sensitivity. The hollow rod is light and easy to thread, which can protect the cable from wear and tear and has accurate positioning. It solves the problem that the existing temperature sensor is difficult to monitor the internal temperature of a large number of deposits, such as coal piles, food warehouses, cotton bale piles, etc., because the temperature of these materials is too high, and multiple wiring harnesses are placed inside the material during detection, the positioning is not accurate, the cable is easily damaged, and the maintenance and replacement are troublesome. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0013] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0014] Figure 4 For this utility model Figure 2 Enlarged structural diagram at B in the middle.

[0015] In the figure: 1. Connecting protection tube; 2. Temperature measuring tube; 3. Intermediate step temperature measuring point; 4. Intermediate temperature measuring head; 5. Output cable; 6. Cable housing; 7. Connecting shell; 8. Front-end temperature measuring head; 9. Front-end temperature measuring point. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-4 The utility model provides a technical solution: a multi-step temperature sensor, comprising a connecting protection tube 1, a temperature measuring tube 2 is fixedly connected to the inner surface of the connecting protection tube 1, an intermediate step temperature measuring point 3 is fixedly connected to one side surface of the temperature measuring tube 2, an intermediate temperature measuring head 4 is fixedly connected to one side surface of the intermediate step temperature measuring point 3, an output cable 5 is fixedly connected to one end of the intermediate temperature measuring head 4, a cable housing 6 is fixedly sleeved on the outer surface of the output cable 5, a connecting shell 7 is fixedly sleeved on one end surface of the cable housing 6, a front-end temperature measuring head 8 is fixedly connected to one end surface of the connecting shell 7, and a front-end temperature measuring point 9 is fixedly connected to the outer surface of the front-end temperature measuring head 8, through the connecting protection tube 1, the temperature measuring tube 2, the intermediate step temperature measuring point 3, and the intermediate temperature The measuring head 4, output cable 5, cable housing 6, connecting shell 7, front-end temperature measuring head 8, and front-end temperature measuring point 9 are set. When temperature measurement is required, first insert the front-end temperature measuring head 8 and the front-end temperature measuring point 9 into the corresponding material pile, measure the corresponding material pile through the front-end temperature measuring point 9, and transmit the data to the front-end temperature measuring head 8. The front-end temperature measuring head 8 transmits the data to the back-end equipment through the output cable 5 for analysis and processing. At the same time, the intermediate step temperature measurement point 3 cooperates with the intermediate temperature measuring head 4 to measure the temperature at different positions, and then transmits the data to the back-end equipment for analysis and processing through another set of output cables 5 to obtain more comprehensive temperature data. Secondly, the protection tube 1 is connected to protect the temperature measuring tube 2 to prevent it from being damaged or contaminated.

[0018] Furthermore, the output cables 5 are connected one by one to the intermediate temperature measuring heads 4, and each group of output cables 5 is connected to the cable housing 6. Through the setting of the output cables 5, when in use, each intermediate temperature measuring head 4 is connected to an output cable 5, ensuring that the data of each temperature measurement point can be accurately transmitted to the back-end device for processing.

[0019] Furthermore, the intermediate temperature measuring head 4 and the front temperature measuring point 9 are both made of copper, and the outer wall size of the cable housing 6 matches the inner wall size of the connecting shell 7. Through the setting of the cable housing 6, the output cable 5 is protected to prevent the output cable 5 from being damaged.

[0020] Furthermore, multiple groups of intermediate step temperature measurement points 3 are provided, and the intermediate step temperature measurement points 3 are symmetrically distributed on both sides of the temperature measuring tube 2. Through the setting of the intermediate step temperature measurement points 3, the temperatures at different depths and positions can be measured, making the temperature data more comprehensive and accurate.

[0021] Furthermore, the connecting protection tube 1 can be spliced ​​in multiple layers, and the outer wall size of the front-end temperature measuring head 8 matches the inner wall size of the front-end temperature measuring point 9. Through the setting of the connecting protection tube 1, the sensor can be connected in multiple stages during use, which is convenient for measuring temperatures at different depths.

[0022] Working principle: When in use, first insert the front-end temperature measuring head 8 and the front-end temperature measuring point 9 into the material to be measured. The front-end temperature measuring point 9 is responsible for measuring the temperature of the material and transmitting the measured data to the front-end temperature measuring head 8. The front-end temperature measuring head 8 then transmits the data to the back-end device through the output cable 5 for analysis and processing. At the same time, the intermediate step temperature measurement point 3 also performs measurement, and transmits the data to the back-end device through the intermediate temperature measuring head 4 and the corresponding output cable 5. By setting multiple temperature measurement points, more comprehensive and accurate temperature data can be obtained. In addition, the multi-layer splicing design of the connecting protection tube 1 allows the sensor to be connected in multiple stages as needed to meet the measurement requirements of different depths.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-step temperature sensor, comprising a connecting protection tube (1), characterized in that: The inner surface of the connection protection tube (1) is fixedly connected to a temperature measuring tube (2), one side surface of the temperature measuring tube (2) is fixedly connected to an intermediate step temperature measuring point (3), one side surface of the intermediate step temperature measuring point (3) is fixedly connected to an intermediate temperature measuring head (4), one end of the intermediate temperature measuring head (4) is fixedly connected to an output cable (5), the outer surface of the output cable (5) is sleeved and fixedly provided with a cable housing (6), one end surface of the cable housing (6) is sleeved and fixedly provided with a connection shell (7), one end surface of the connection shell (7) is fixedly connected to a front end temperature measuring head (8), and the outer surface of the front end temperature measuring head (8) is fixedly connected to a front end temperature measuring point (9).

2. The multi-step temperature sensor according to claim 1, characterized in that: The output cables (5) are connected one by one to the intermediate temperature measuring heads (4), and each group of the output cables (5) is connected to a cable housing (6).

3. The multi-step temperature sensor according to claim 1, characterized in that: The materials of the intermediate temperature measuring head (4) and the front temperature measuring point (9) are both copper, and the outer wall size of the cable housing (6) matches the inner wall size of the connecting housing (7).

4. The multi-step temperature sensor according to claim 1, characterized in that: A plurality of groups of intermediate step temperature measurement points (3) are provided, and the intermediate step temperature measurement points (3) are symmetrically distributed on both sides of the temperature measurement tube (2).

5. The multi-step temperature sensor according to claim 1, characterized in that: The connection protection tube (1) can be spliced ​​in multiple layers, and the outer wall size of the front-end temperature measuring head (8) matches the inner wall size of the front-end temperature measuring point (9).

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