Safe and detachable precious metal thermocouple

Abstract

The utility model discloses a safe and detachable precious metal thermocouple, which relates to the technical field of thermocouples and comprises a junction box main body, a junction box base, a protective sleeve and a temperature measuring element. A plurality of mounting grooves are formed in the junction box base, clamping blocks are fixed in the mounting grooves through elastic pieces, clamping grooves for clamping the clamping blocks are formed in the protective sleeve, and an unlocking assembly for rapidly driving the clamping blocks to be separated from the clamping grooves to relieve fixation is arranged at the bottom of the junction box base. The elastic piece comprises a spring fixed between the inner wall of the mounting groove and the clamping block, the elastic piece, the clamping block and the unlocking assembly are arranged, the clamping block is driven by the elastic piece to be clamped into the clamping groove, the mounting work between the protective sleeve and the junction box base can be achieved, the clamping block is driven by the unlocking assembly to fall off the clamping groove, and the safety of the junction box base is improved. The quick disassembly and assembly work of the protective sleeve and the junction box base is realized, and the subsequent maintenance is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field related to thermocouples, in particular to a safe and detachable precious metal thermocouple. Background Art

[0002] In temperature measurement, thermocouples or thermal resistors are widely used. They have many advantages, such as simple structure, convenient manufacturing, wide measurement range, high accuracy, small inertia, and convenient remote transmission of output signals. In addition, since thermocouples or thermal resistors are active sensors, they do not require external power supply during measurement and have low energy consumption, so they are often used to measure the temperature of gas or liquid in furnaces and pipelines and the surface temperature of solids.

[0003] Currently, most thermocouples are of an integrated fixed structure, with the protective sleeve and the junction box connected together. When a thermocouple fails, it is not convenient for workers to disassemble it for operation, and the entire device needs to be replaced, which is very costly. Utility Model Content

[0004] In order to solve the defects in the prior art, the utility model provides a safe and detachable precious metal thermocouple.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model discloses a safe and detachable precious metal thermocouple, comprising a junction box body, a junction box base, a protective sleeve and a temperature measuring element, wherein the junction box base is provided with an assembly part for installing and disassembling the protective sleeve, a plurality of installation grooves are provided on the junction box base and a card block is fixed inside the installation groove by an elastic member, the protective sleeve is provided with a card slot for the card block to be inserted, and the bottom of the junction box base is provided with an unlocking component for quickly driving the card block out of the card slot to release the fixation.

[0007] As a preferred technical solution of the utility model, the elastic member includes a spring fixed between the inner wall of the installation groove and the clamping block.

[0008] As a preferred technical solution of the utility model, the unlocking component includes a rotating plate rotating on the base of the junction box, a plurality of arc-shaped slides are provided on the surface of the rotating plate, a connecting rod is fixed to the bottom of the block, the connecting rod slides in a strip channel provided on the base of the junction box, and the bottom end of the connecting rod slides in a similar arc-shaped slide.

[0009] As a preferred technical solution of the utility model, a spherical block is provided on the surface of the protective sleeve, a mounting frame is provided outside the protective sleeve, and a bracket that fits and cooperates with the spherical block is fixed inside the mounting frame.

[0010] As a preferred technical solution of the utility model, the mounting frame and the bracket are threadedly provided with a same stop bolt for locking the spherical block.

[0011] As a preferred technical solution of the utility model, a threaded sleeve is fixed on the surface of the protective sleeve, and the spherical block is threadedly installed on the surface of the threaded sleeve.

[0012] The beneficial effects of the utility model are:

[0013] 1. This kind of safe and detachable precious metal thermocouple, by setting elastic parts, card blocks and unlocking components, uses the elastic parts to drive the card blocks to be stuck into the card slots, so as to realize the installation work between the protective sleeve and the junction box base, and uses the unlocking components to drive the card blocks to fall off the card slots, so as to realize the rapid disassembly and assembly of the protective sleeve and the junction box base, which is convenient for subsequent maintenance.

[0014] 2. This type of safe and detachable precious metal thermocouple, by setting a spherical block, a bracket and a mounting frame, uses the spherical block to rotate inside the bracket and is fixed to the surface of the equipment with the mounting frame, so that the thermocouple can be installed at different angles to meet different usage requirements.

[0015] 3. This type of safe and detachable precious metal thermocouple, by setting a threaded sleeve, rotates the spherical block so that the spherical block can move up and down on the surface of the threaded sleeve, and can adjust the position of the spherical block to meet the detection needs of different depths. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of a safe and detachable precious metal thermocouple of the utility model;

[0018] Figure 2 It is a cross-sectional structural schematic diagram of a safe and detachable precious metal thermocouple mounting frame of the utility model;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of a safe and detachable precious metal thermocouple protection sleeve of the utility model;

[0020] Figure 4 It is a schematic cross-sectional structure diagram of a safe and detachable precious metal thermocouple junction box base of the utility model;

[0021] Figure 5 The utility model is a structural schematic diagram of a safe and detachable precious metal thermocouple rotating plate.

[0022] In the figure: 1. Protective sleeve; 2. Junction box body; 3. Mounting frame; 4. Bracket; 5. Spherical block; 6. Threaded sleeve; 7. Stop bolt; 8. Junction box base; 9. Turn plate; 10. Block; 11. Connecting rod; 12. Spring. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0024] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the utility model is a safe and detachable precious metal thermocouple, comprising a junction box body 2, a junction box base 8, a protective sleeve 1 and a temperature measuring element, the junction box base 8 is provided with an assembly part for installing and disassembling the protective sleeve 1, a plurality of installation slots are provided on the junction box base 8, and a card block 10 is fixed inside the installation slot by an elastic member, a card slot for the card block 10 to be inserted is provided on the protective sleeve 1, and an unlocking component for quickly driving the card block 10 out of the card slot to release the fixation is provided at the bottom of the junction box base 8;

[0025] By providing an elastic member, a card block 10 and an unlocking component, the elastic member is used to drive the card block 10 to be inserted into the card slot, so that the installation work between the protective sleeve 1 and the junction box base 8 can be achieved. The unlocking component can be used to drive the card block 10 to fall off the card slot, so that the protective sleeve 1 and the junction box base 8 can be quickly disassembled and assembled, which is convenient for subsequent maintenance.

[0026] As a preferred technical solution of the utility model, the elastic member includes a spring 12 fixed between the inner wall of the installation groove and the clamping block 10;

[0027] By providing the spring 12, the elasticity of the spring 12 can be utilized to drive the card block 10 to automatically return to its original position and be quickly inserted into the slot, thereby preventing the card block 10 from shaking or deviating and improving stability.

[0028] As a preferred technical solution of the utility model, the unlocking assembly includes a rotating plate 9 rotating on the junction box base 8, a plurality of arc-shaped slideways are provided on the surface of the rotating plate 9, a connecting rod 11 is fixed to the bottom of the block 10, the connecting rod 11 slides in the strip-shaped channel provided on the junction box base 8, and the bottom end of the connecting rod 11 slides in a similar arc-shaped slideway;

[0029] By setting a rotating plate 9 and a connecting rod 11, the rotating plate 9 is rotated so that the arc-shaped slideway provided on the rotating plate 9 cooperates with the strip-shaped slideway provided on the junction box base 8, so that the connecting rod 11 can drive the clamping block 10 to move, so that the clamping block 10 is disengaged from the clamping slot, and the fixing of the protective sleeve 1 and the junction box base 8 is released, thereby realizing a quick disassembly function and facilitating operation.

[0030] As a preferred technical solution of the utility model, a spherical block 5 is provided on the surface of the protective sleeve 1, a mounting frame 3 is provided outside the protective sleeve 1, and a bracket 4 that fits and cooperates with the spherical block 5 is fixed inside the mounting frame 3;

[0031] By providing the spherical block 5, the bracket 4 and the mounting frame 3, and utilizing the spherical block 5 to rotate inside the bracket 4 and to cooperate with the mounting frame 3 to be fixed on the surface of the equipment, the thermocouple can be installed at different angles to meet different usage requirements.

[0032] As a preferred technical solution of the utility model, the mounting frame 3 and the bracket 4 are threaded with a same stop bolt 7 for locking the spherical block 5;

[0033] By providing the stop bolt 7, the stop bolt 7 is used to lock the position of the spherical block 5, thereby improving the stability of the spherical block 5 and further improving the stability of the thermocouple installation.

[0034] As a preferred technical solution of the utility model, a threaded sleeve 6 is fixed on the surface of the protective sleeve 1, and the spherical block 5 is threadedly installed on the surface of the threaded sleeve 6;

[0035] By providing the threaded sleeve 6 and rotating the spherical block 5 so that the spherical block 5 can move up and down on the surface of the threaded sleeve 6 , the position of the spherical block 5 can be adjusted to meet the detection requirements of different depths.

[0036] During operation, the thermocouple is installed to the working position through the mounting bracket 3, and the detection position of the thermocouple is adjusted by rotating the spherical block 5 inside the bracket 4. After the position is determined, the stop bolt 7 is turned to lock the spherical block 5 to achieve the installation of the thermocouple. When the thermocouple needs to be disassembled and maintained, the rotating plate 9 is rotated so that the arc-shaped slideway on the rotating plate 9 cooperates with the strip slideway on the junction box base 8, which can drive the connecting rod 11 to drive the block 10 to move, so that the block 10 is disengaged from the slot, and the fixation of the protective sleeve 1 and the junction box base 8 is released.

[0037] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A safe and detachable precious metal thermocouple, comprising a junction box body (2), a junction box base (8), a protective sleeve (1) and a temperature measuring element, characterized in that: The junction box base (8) is provided with an assembly part for installing and disassembling the protective sleeve (1), the junction box base (8) is provided with a plurality of installation slots, and a clamping block (10) is fixed inside the installation slot by an elastic member, the protective sleeve (1) is provided with a clamping slot for the clamping block (10) to be clamped, and the bottom of the junction box base (8) is provided with an unlocking component for quickly driving the clamping block (10) out of the clamping slot to release the fixation.

2. A safe and detachable precious metal thermocouple according to claim 1, characterized in that: The elastic member comprises a spring (12) fixed between the inner wall of the installation groove and the clamping block (10).

3. A safe and detachable precious metal thermocouple according to claim 1, characterized in that: The unlocking assembly comprises a rotating plate (9) which rotates on the junction box base (8), a plurality of arc-shaped slideways are provided on the surface of the rotating plate (9), a connecting rod (11) is fixed to the bottom of each of the clamping blocks (10), the connecting rod (11) slides in a strip-shaped channel provided on the junction box base (8), and the bottom end of the connecting rod (11) slides in a similar arc-shaped slideway.

4. A safe and detachable precious metal thermocouple according to claim 1, characterized in that: A spherical block (5) is provided on the surface of the protective sleeve (1), a mounting frame (3) is provided on the outside of the protective sleeve (1), and a bracket (4) which fits and cooperates with the spherical block (5) is fixed inside the mounting frame (3).

5. A safe and detachable precious metal thermocouple according to claim 4, characterized in that: The mounting frame (3) and the bracket (4) are threadedly provided with a same stop bolt (7) for locking the spherical block (5).

6. A safe and detachable precious metal thermocouple according to claim 4, characterized in that: A threaded sleeve (6) is fixed on the surface of the protective sleeve (1), and the spherical block (5) is threadedly mounted on the surface of the threaded sleeve (6).

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