Thermocouple protector

Abstract

The utility model relates to the technical field of thermocouples, in particular to a thermocouple protector which comprises a thermocouple wire, an insulating sleeve and a protection assembly, the thermocouple wire is fixedly installed in the insulating sleeve, the protection assembly comprises a junction box, an installation piece, a protection tube, an elastic piece, a driving component and an anti-collision component, the junction box is fixedly installed on the insulating sleeve, and the installation piece is fixedly installed on the protection tube. The installation part is fixedly installed on the insulating sleeve, the protection tube is installed on the installation part through the driving component, the elastic sheet is fixedly installed on the protection tube and located at the end, away from the installation part, of the protection tube, and during temperature measurement, the protection tube is made to rotate through the driving component, the protection tube is made to move on the insulating sleeve, and the elastic sheet is driven to move upwards. The thermocouple wire is exposed, the thermocouple wire is in contact with a detected object for temperature measurement, measured data is transmitted to the junction box, and data checking is carried out through external equipment, so that the measurement precision of the detected object can be improved, and an accurate measurement value can be obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of thermocouples, and particularly relates to a thermocouple protector. Background Art

[0002] A thermocouple is a temperature measuring element commonly used in temperature measuring instruments. It directly measures temperature, converts the temperature signal into a thermal electromotive force signal, and converts it into the temperature of the measured medium through an electrical instrument. A thermocouple mainly consists of main parts such as a thermal electrode, an insulating sleeve protection tube, and a junction box. Thermocouples can be divided into types such as assembled thermocouples, armored thermocouples, and spring-fixed thermocouples.

[0003] A thermocouple protector in the existing patent CN219474815U includes: a junction box; a connecting pipe assembly, one end of the connecting pipe assembly is connected to the junction box, and the connecting pipe assembly includes an insulating pipe, a metal protection pipe, and a first non-metal protection pipe arranged in sequence from inside to outside along its radial direction; a sensor for measuring temperature, arranged inside the insulating pipe at the end away from the junction box. In this solution, the first non-metal protection pipe is arranged on the outer layer and the metal protection pipe is arranged on the inner layer, which can solve the problems of poor strength or poor corrosion resistance of the protection tube of the thermocouple during use.

[0004] However, when using the thermocouple protector of the existing patent, since the protection tube is fixedly installed on the installation part and cannot be rotated according to the actual use situation, the measuring end of the thermocouple wire is exposed to measure the temperature, thereby reducing the accuracy of measuring the temperature of the object and unable to obtain an accurate measurement value. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a thermocouple protector, which solves the problem that during the use of the thermocouple protector, since the protection tube is fixedly installed on the installation part and cannot be rotated according to the actual use situation, the measuring end of the thermocouple wire is exposed to measure the temperature, thereby reducing the accuracy of measuring the temperature of the object and unable to obtain an accurate measurement value.

[0006] To achieve the above purpose, the utility model provides a thermocouple protector, including a thermocouple wire, an insulating sleeve, and a protection component. The thermocouple wire is fixedly installed inside the insulating sleeve. The protection component includes a junction box, an installation part, a protection tube, an elastic sheet, a driving member, and a collision prevention member. The junction box is fixedly installed on the insulating sleeve and is located at the end of the insulating sleeve away from the thermocouple wire. The installation part is fixedly installed on the insulating sleeve. The protection tube is installed on the installation part through the driving member. The elastic sheet is fixedly installed on the protection tube and is located at the end of the protection tube away from the installation part.

[0007] Among them, the driving member includes a guide rail, a rotating cylinder and a positioning member. The guide rail is fixedly installed on the mounting member; the rotating cylinder is installed on the guide rail, the rotating cylinder is slidably connected to the guide rail, the protection tube is installed on the rotating cylinder, and the protection tube is threadedly connected to the rotating cylinder; the positioning member is installed on the guide rail.

[0008] Among them, the positioning member includes a positioning rod and a cross block. The number of the positioning rods is two. The two positioning rods are respectively installed on both sides of the guide rail. The positioning rod is threadedly connected to the guide rail. Each positioning rod is equipped with the cross block, and the cross block is fixedly connected to the positioning rod.

[0009] Among them, the guide rail has positioning holes, and the positioning holes cooperate with the positioning rods.

[0010] Among them, the anti-collision member includes a protective sleeve and an airbag. The protective sleeve is fixedly installed on the junction box; the airbag is fixedly installed on the junction box.

[0011] For a thermocouple protector of the present utility model, the junction box is fixedly installed on the insulating sleeve, the mounting member is fixedly installed on the insulating sleeve, the protection tube is installed on the rotating cylinder, and the elastic piece is fixedly installed on the protection tube. During use, rotate the positioning rod to remove the positioning rod from the guide rail, then rotate the rotating cylinder to make the rotating cylinder rotate on the guide rail, make the protection tube threadedly rotate on the rotating cylinder, drive the elastic piece to move upward, expose the thermocouple wire, and then place the positioning rod on the positioning hole and threadedly rotate it to make the positioning rod abut against the rotating cylinder, fix the rotating cylinder on the guide rail, stop the movement of the protection tube, make the thermocouple wire contact the detection object for measurement, and the measured data is transmitted to the junction box, and then the data is viewed through an external device, so as to improve the accuracy of measuring the detection object and obtain an accurate measurement value. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art.

[0013] Figure 1 It is a schematic diagram of the overall structure of the thermocouple protector according to the first embodiment of the present utility model.

[0014] Figure 2 It is a schematic diagram of the installation structure of the thermocouple wire according to the first embodiment of the present utility model.

[0015] Figure 3 It is a schematic diagram of the installation structure of the airbag according to the second embodiment of the present utility model.

[0016] In the figure: 101 - thermocouple wire, 102 - insulating sleeve, 103 - junction box, 104 - mounting part, 105 - protection tube, 106 - elastic sheet, 107 - guide rail, 108 - rotating cylinder, 109 - positioning rod, 110 - cross block, 111 - positioning hole, 201 - protective sleeve, 202 - airbag. Specific embodiments

[0017] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0018] The first embodiment of the present application is as follows:

[0019] Please refer to Figure 1 and Figure 2 wherein Figure 1 is the overall structural schematic diagram of the thermocouple protector according to the first embodiment of the present invention; Figure 2 is the installation structural schematic diagram of the thermocouple wire according to the first embodiment of the present invention.

[0020] The present invention provides a thermocouple protector, including a thermocouple wire 101, an insulating sleeve 102 and a protection component. The protection component includes a junction box 103, a mounting part 104, a protection tube 105, an elastic sheet 106, a driving member and a collision prevention member. The driving member includes a guide rail 107, a rotating cylinder 108 and a positioning component. The positioning component includes a positioning rod 109 and a cross block 110. The guide rail 107 has a positioning hole 111. Through the foregoing solution, the problem that in the process of using the thermocouple protector, since the protection tube is fixedly installed on the mounting part and cannot be rotated according to the actual use situation, the measuring end of the thermocouple wire is exposed to measure the temperature, thereby reducing the accuracy of measuring the temperature of the object to be measured and unable to obtain an accurate measurement value is solved. It can be understood that the foregoing solution can be used in the scenario of thermocouple use and can also be used to solve the problem of junction box protection.

[0021] In this embodiment, the thermocouple wire 101 is fixedly installed in the insulating sleeve 102, and the protection component is installed on the insulating sleeve 102, so that the protection tube 105 moves to expose the thermocouple wire 101 to measure the temperature of the detection object, which can improve the accuracy of measuring the detection object and obtain an accurate measurement value.

[0022] Among them, the junction box 103 is fixedly installed on the insulating sleeve 102 and is located at one end of the insulating sleeve 102 away from the thermocouple wire 101. The mounting member 104 is fixedly installed on the insulating sleeve 102. The protection tube 105 is installed on the mounting member 104 through the driving member. The elastic sheet 106 is fixedly installed on the protection tube 105 and is located at one end of the protection tube 105 away from the mounting member 104. The junction box 103 plays a role in joint connection and protection, and performs operations such as amplifying, linearizing, adjusting, and isolating the temperature signal sensed by the thermocouple wire 101, and displays the data through an external device, facilitating the operator to record the temperature data; the mounting member 104 is made of ferroaluminum porcelain material, and the mounting member 104 supports the driving member; the protection tube 105 is made of ferroaluminum porcelain material, and the protection tube 105 protects the insulating sleeve 102, making the insulating sleeve 102 not easily damaged by external force bending. The protection tube 105 is sleeved on the outer shell of the insulating sleeve 102, and the protection tube 105 slides on the insulating sleeve 102 through the driving member, driving the elastic sheet 106 to move to expose the thermocouple wire 101; the elastic sheet 106 has a certain elasticity to protect the thermocouple wire 101; the driving member enables the protection tube 105 to move on the insulating sleeve 102; the anti-collision member protects the junction box 103; when measuring the temperature, the driving member is used to rotate the protection tube 105, so that the protection tube 105 moves on the insulating sleeve 102, driving the elastic sheet 106 to move upward to expose the thermocouple wire 101, enabling the thermocouple wire 101 to contact the detected object for temperature measurement, and the measured data is transmitted to the junction box 103, and then the data is viewed through an external device, thereby improving the accuracy of measuring the detected object and obtaining an accurate measured value.

[0023] Secondly, the guide rail 107 is fixedly installed on the mounting member 104; the rotating cylinder 108 is installed on the guide rail 107, and the rotating cylinder 108 is slidably connected to the guide rail 107. The protective tube 105 is installed on the rotating cylinder 108, and the protective tube 105 is threadedly connected to the rotating cylinder 108; the positioning member is installed on the guide rail 107. The guide rail 107 supports the rotation of the rotating cylinder 108 and plays a supporting role in the rotation of the rotating cylinder 108; the inner wall of the rotating cylinder 108 has threads, and the threads are thread-matched with the outer wall of the protective tube 105. Rotating the rotating cylinder 108 moves the protective tube 105. The outer wall of the rotating cylinder 108 has protrusions to increase the friction with the hand and facilitate the rotation of the rotating cylinder 108; the positioning member fixes the rotating cylinder 108 on the guide rail 107, so that the rotating cylinder 108 is not easily rotated by external forces, thereby fixing the movement of the protective tube 105; rotating the rotating cylinder 108 makes the protective tube 105 move on the insulating sleeve 102 to a specified height to expose the thermocouple wire 101, and then the rotating cylinder 108 is fixed on the guide rail 107 through the positioning member, so that the rotating cylinder 108 is not easily rotated by external forces and also fixes the protective tube 105.

[0024] Thirdly, the number of the positioning rods 109 is two. The two positioning rods 109 are respectively installed on both sides of the guide rail 107, and the positioning rods 109 are threadedly connected to the guide rail 107. Each positioning rod 109 is provided with a cross block 110, and the cross block 110 is fixedly connected to the positioning rod 109. The number of the positioning rods 109 being two can better fix the rotating cylinder 108 on the guide rail 107; the cross block 110 facilitates the rotation and removal of the positioning rod 109 from the guide rail 107.

[0025] Then, the positioning hole 111 cooperates with the positioning rod 109. The threads on the inner wall of the positioning hole 111 are thread-matched with the threads on the positioning rod 109, so that the positioning rod 109 is thread-rotated on the positioning hole 111 and abuts against the rotating cylinder 108 to fix the rotating cylinder 108 on the guide rail 107.

[0026] When a thermocouple protector in this embodiment is in use, rotate the positioning rod 109 to remove the positioning rod 109 from the guide rail 107, then rotate the rotating cylinder 108 to make the rotating cylinder 108 rotate on the guide rail 107, so that the protection tube 105 rotates threadedly on the rotating cylinder 108, driving the elastic piece 106 to move upward, exposing the thermocouple wire 101. Then, place the positioning rod 109 on the positioning hole 111 and rotate it threadedly so that the positioning rod 109 abuts against the rotating cylinder 108, fixing the rotating cylinder 108 on the guide rail 107, stopping the movement of the protection tube 105, and making the thermocouple wire 101 contact the detection object for measurement. The measured data is transmitted to the junction box 103, and then the data is viewed through an external device, thereby improving the accuracy of measuring the detection object and obtaining an accurate measurement value.

[0027] The second embodiment of this application is:

[0028] Please refer to Figure 3 , in which Figure 3 is a schematic diagram of the installation structure of the airbag in the second embodiment of the present utility model.

[0029] The anti-collision member provided by the present utility model includes a protective sleeve 201 and an airbag 202.

[0030] Among them, the protective sleeve 201 is fixedly installed on the junction box 103; the airbag 202 is fixedly installed on the junction box 103. The protective sleeve 201 is made of rubber, and the protective sleeve 201 protects the junction box 103. When the thermocouple wire 101 is used up and placed horizontally on the table, under the action of the protective sleeve 201, the junction box 103 does not directly contact the junction box 103, avoiding hitting the junction box 103 with excessive force during placement and damaging the junction box 103; the airbag 202 is made of polyester fiber and polyamide fiber fabric, and the airbag 202 further protects the junction box 103; through the protective sleeve 201 and the airbag 202, the junction box 103 is protected, thereby avoiding damage to the junction box 103 caused by external impact.

[0031] When a thermocouple protector in this embodiment is in use, the junction box 103 is protected through the protective sleeve 201 and the airbag 202, thereby avoiding damage to the junction box 103 caused by external impact.

[0032] The above-disclosed are only one or more preferred embodiments of this application, and the scope of rights of this application cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of this application still fall within the scope covered by this application.

Claims

1. A thermocouple protector, comprising a thermocouple wire and an insulating sleeve, wherein the thermocouple wire is fixedly installed in the insulating sleeve, characterized in that: Also included are protection components; The protection assembly includes a junction box, a mounting member, a protection tube, an elastic sheet, a driving member and an anti-collision member. The junction box is fixedly mounted on the insulating sleeve and is located at an end of the insulating sleeve away from the thermocouple wire. The mounting member is fixedly mounted on the insulating sleeve. The protection tube is mounted on the mounting member through the driving member. The elastic sheet is fixedly mounted on the protection tube and is located at an end of the protection tube away from the mounting member.

2. The thermocouple protector according to claim 1, characterized in that: The driving component includes a guide rail, a rotating drum and a positioning component. The guide rail is fixedly mounted on the mounting component; the rotating drum is mounted on the guide rail, and the rotating drum is slidably connected to the guide rail; the protective tube is mounted on the rotating drum, and the protective tube is threadedly connected to the rotating drum; the positioning component is mounted on the guide rail.

3. The thermocouple protector according to claim 2, characterized in that: The positioning component includes a positioning rod and a cross block. There are two positioning rods, which are respectively installed on both sides of the guide rail. The positioning rod is threadedly connected to the guide rail. Each positioning rod is installed with a cross block, which is fixedly connected to the positioning rod.

4. The thermocouple protector according to claim 3, characterized in that: The guide rail has a positioning hole, and the positioning hole cooperates with the positioning rod.

5. The thermocouple protector according to claim 1, characterized in that: The anti-collision component includes a protective cover and an airbag, wherein the protective cover is fixedly mounted on the junction box; and the airbag is fixedly mounted on the junction box.

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