Thermocouple with sealing joint

Abstract

The utility model relates to the technical field of thermocouples, in particular to a thermocouple with a sealing joint, which comprises a thermocouple body, the outer surface of the thermocouple body is provided with a sealing ring, the front surface of the sealing ring is provided with a first connecting frame, and the back surface of the sealing ring is provided with a second connecting frame. A through hole is formed in the first connecting frame; and the first pushing rod is installed in the through hole, and a first abutting pad is arranged on the back face of the first pushing rod. According to the utility model, the first abutting pad is pushed to the outer surface of the thermocouple body, and similarly, the second pushing rod and the second abutting pad can also complete the operation, so that the overall operation effect is good, the position of the thermocouple body can be limited and fixed again through the design of the first abutting pad and the second abutting pad, and the overall limiting effect is good; therefore, the thermocouple body is good in sealing performance in use, and meanwhile, the situation that the thermocouple body is loosened and displaced can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to thermocouple technical field, concretely is a thermocouple with sealed joint. BACKGROUND

[0002] Thermocouple is the temperature measuring instrument commonly used temperature measuring element, it directly measures temperature, and converts temperature signal into thermoelectric electromotive force signal, through electrical instrument (secondary instrument) conversion into the temperature of measured medium. The appearance of various thermocouples is extremely different due to the need, but their basic structure is roughly the same, usually by thermocouple wire, insulating sleeve protection tube and terminal box etc. Main part is composed, usually and display instrument, recording instrument and electronic regulator are used in pairs.

[0003] For this, China application patent number: CN219624917U, discloses a kind of for tubular PECVD thermocouple connector, including fixed column and the chuck head being set on it, fixed column center is opened with inner column passage, chuck head includes two clamping wings, elastic member and connecting column, two clamping wings are hinged in the two sides of connecting column by pivot, elastic member is arranged between two clamping wings and located above connecting column. Using the connector can be clamped and locked to install thermocouple to furnace tube, increase the stability of thermocouple, avoid unnecessary influence and loss caused by temperature measurement misplacement.

[0004] But in actual use, only through the design of elastic member and non-slip pad thermocouple is clamped, and the thermocouple and furnace body are sealed and connected, but the elastic member cannot stably clamp the thermocouple, and the thermocouple and the furnace body are still loose, so the overall sealing connection effect is not good, therefore we perfect and improve the above problems become the problem that needs to be solved at present. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of thermocouple with sealed joint, to solve the problem that the above background technology is proposed by the design of elastic member and non-slip pad thermocouple is clamped, and the thermocouple and furnace body are sealed and connected, but the elastic member cannot stably clamp the thermocouple, and the thermocouple and the furnace body are still loose, so the overall sealing connection effect is not good.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of thermocouple with sealed joint, including thermocouple body, the outer surface of the thermocouple body is provided with sealing ring, the front surface of the sealing ring is provided with first connecting frame, the back surface of the sealing ring is installed with second connecting frame, the inside of the first connecting frame is equipped with through-hole;

[0007] The first push rod is installed inside the through hole, the back surface of the first push rod is provided with a first abutting pad, the front surface of the first push rod is installed with a stabilizing ring, the inside of the second connecting frame is installed with a second push rod, and the front surface of the second push rod is provided with a second abutting pad.

[0008] Preferably, the first abutting pad and the second abutting pad are symmetrically arranged, and the surfaces close to each other of the first abutting pad and the second abutting pad abut the outer surface of the thermocouple body.

[0009] Preferably, the right surface of the first connecting frame is installed with a transparent telescopic cylinder, and the inner side wall of the transparent telescopic cylinder is provided with a spring body.

[0010] Preferably, the end of the spring body away from the transparent telescopic cylinder is provided with a limiting connecting column, the left surface of the limiting connecting column is provided with a telescopic rod, and the telescopic rod is provided with two groups.

[0011] Preferably, the right surface of the limiting connecting column is provided with a first connecting block, the back surface of the first connecting block is installed with a fixing ring, the fixing ring is matched with the thermocouple body, and the back surface of the fixing ring is installed with a second connecting block.

[0012] Preferably, the top surfaces of the first connecting frame and the second connecting frame are installed with fixing plates, and the left surfaces of the fixing plates are attached to the furnace body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The thermocouple with a sealing joint, by setting the sealing ring, the first connecting frame, the second connecting frame, the through hole, the first push rod, the first abutting pad, the stabilizing ring, the second push rod and the second abutting pad, in use, first, the sealing ring is installed to the outer surface of the thermocouple body, then the first connecting frame and the second connecting frame can be in contact with the outer surface of the furnace body, so that the overall stability effect is good, the sealing ring can seal the thermocouple body and the furnace body, then the stabilizing ring is pushed and held inside the through hole, then the first push rod is pushed, the first abutting pad can be pushed to the outer surface of the thermocouple body, and the second push rod and the second abutting pad can also complete the operation, the overall operation effect is good, the position of the thermocouple body can be fixed again by the design of the first abutting pad and the second abutting pad, the overall limiting effect is good, so that the thermocouple body is good in sealing when in use, and the thermocouple body can also avoid loosening and displacement, and the practicability of the design is embodied.

[0015] 2、The thermocouple with sealing joint, through the design of the transparent telescopic cylinder and the limiting connecting column, the first connecting block can be connected, the position of the fixed ring is limited through the first connecting block and the second connecting block, the outer surface of the thermocouple body can also be clamped through the fixed ring, the overall clamping effect is good, when the thermocouple body is displaced, the limiting connecting column moves in the transparent telescopic cylinder at this time, so that the spring body is deformed at this time, so that the loosening condition of the thermocouple body can be detected by observing the tightness of the spring body in the transparent telescopic cylinder, and the telescopic rod can limit the deformation of the spring body, and the functionality of the design is embodied. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic view of the structure of the utility model;

[0017] Figure 2 It is a three-dimensional schematic view of the structure of the sealing ring and the fixed ring of the utility model;

[0018] Figure 3 It is a split schematic view of the structure of the sealing ring and the first push rod of the utility model;

[0019] Figure 4 It is a split schematic view of the structure of the transparent telescopic cylinder and the limiting connecting column of the utility model.

[0020] In the drawing: 1, thermocouple body; 2, sealing ring; 3, first connecting frame; 4, second connecting frame; 5, through hole; 6, first push rod; 7, first abutting pad; 8, stabilizing ring; 9, second push rod; 10, second abutting pad; 11, transparent telescopic cylinder; 12, spring body; 13, limiting connecting column; 14, telescopic rod; 15, first connecting block; 16, fixed ring; 17, second connecting block; 18, fixed plate. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] Please refer to Figures 1-4 An embodiment provided by the utility model:

[0023] The utility model provides a thermocouple with sealed joint, the thermocouple body 1, transparent telescopic cylinder 11, spring body 12 and telescopic rod 14 used in the application are all the products that can be directly bought in the market, and the principle and connecting mode are all the prior art that the person skilled in the art is familiar with, so here is no longer tedious, including thermocouple body 1, the outer surface of thermocouple body 1 is provided with sealing ring 2, the front surface of sealing ring 2 is provided with first connecting frame 3, the back of sealing ring 2 is installed with second connecting frame 4, the inside of first connecting frame 3 is provided with through -hole 5, the right side surface of first connecting frame 3 is installed with transparent telescopic cylinder 11, the inner side wall of transparent telescopic cylinder 11 is provided with spring body 12, the end away from transparent telescopic cylinder 11 of spring body 12 is provided with limit connecting column 13, the left side surface of limit connecting column 13 is provided with telescopic rod 14, telescopic rod 14 is provided with two groups, the right side surface of limit connecting column 13 is provided with first connecting block 15, the back of first connecting block 15 is installed with fixed ring 16, and fixed ring 16 and thermocouple body 1 are mutually adapted, the back of fixed ring 16 is installed with second connecting block 17, the top of first connecting frame 3 and second connecting frame 4 is installed with fixed plate 18, and the left side surface of fixed plate 18 is pasted furnace body, and the design of transparent telescopic cylinder 11 and limit connecting column 13 can connect first connecting block 15, and the position of fixed ring 16 is limited through first connecting block 15 and second connecting block 17, and the outer surface of thermocouple body 1 can also be clamped through fixed ring 16, and the whole clamping effect is good, when thermocouple body 1 displacement occurs, limit connecting column 13 will move in the inside of transparent telescopic cylinder 11 at this time, so that spring body 12 will change shape at this time, so that the looseness of thermocouple body 1 can be detected by observing the tightness of spring body 12 in the inside of transparent telescopic cylinder 11, and telescopic rod 14 can limit the deformation of spring body 12,

[0024] First push rod 6, first push rod 6 is installed inside the through hole 5, the back of first push rod 6 is provided with first contact pad 7, the front surface of first push rod 6 is installed with stabilizing ring 8, the inside of second connecting frame 4 is installed with second push rod 9, the front surface of second push rod 9 is provided with second contact pad 10, the positions of first contact pad 7 and second contact pad 10 are symmetrical with each other, the faces of first contact pad 7 and second contact pad 10 close to each other are in contact with the outer surface of thermocouple body 1, the sealing ring 2 is installed to the outer surface of thermocouple body 1, then the first connecting frame 3 and the second connecting frame 4 can be in contact with the outer surface of the furnace body, so that the overall stability effect is good, the sealing ring 2 can seal between the thermocouple body 1 and the furnace body, then push the stabilizing ring 8 inside the through hole 5, then push the first push rod 6, that is, the first contact pad 7 is pushed to the outer surface of the thermocouple body 1, and the second push rod 9 and the second contact pad 10 can also complete the operation, the overall operation effect is good, the position of the thermocouple body 1 can be fixed again by the design of the first contact pad 7 and the second contact pad 10, the overall limiting effect is good, so that the thermocouple body 1 has good sealing when in use, and the displacement of the thermocouple body 1 can also be avoided.

[0025] Working principle: first, the sealing ring 2 is installed to the outer surface of the thermocouple body 1, then the first connecting frame 3 and the second connecting frame 4 can be in contact with the outer surface of the furnace body, so that the overall stability effect is good, the sealing ring 2 can seal between the thermocouple body 1 and the furnace body, then push the stabilizing ring 8 inside the through hole 5, then push the first push rod 6, that is, the first contact pad 7 is pushed to the outer surface of the thermocouple body 1, and the second push rod 9 and the second contact pad 10 can also complete the operation, the overall operation effect is good, the position of the thermocouple body 1 can be fixed again by the design of the first contact pad 7 and the second contact pad 10, the first connecting block 15 can be connected by the design of the transparent telescopic cylinder 11 and the limiting connecting column 13, the position of the fixed ring 16 is limited by the first connecting block 15 and the second connecting block 17, and the outer surface of the thermocouple body 1 can also be clamped by the fixed ring 16, the overall clamping effect is good, when the thermocouple body 1 is displaced, the limiting connecting column 13 will move inside the transparent telescopic cylinder 11 at this time, so that the spring body 12 will be deformed at this time, so that the loosening of the thermocouple body 1 can be detected by observing the tightness of the spring body 12 inside the transparent telescopic cylinder 11, the above is all the working principle of the utility model.

[0026] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form; any person skilled in the art can smoothly implement the present application according to the drawings shown in the specification and the above description; however, any person skilled in the art can make slight changes, modifications and equivalent changes of the present application within the scope of the technical scheme of the present application, and the equivalent embodiments of the present application are still within the protection scope of the technical scheme of the present application.

Claims

1. A thermocouple with a sealed junction comprising a thermocouple body (1) characterised in that: The outer surface of the thermocouple body (1) is provided with a sealing ring (2), the front surface of the sealing ring (2) is provided with a first connecting frame (3), the back surface of the sealing ring (2) is provided with a second connecting frame (4), the inside of the first connecting frame (3) is provided with a through hole (5); A first push rod (6) is installed in the inside of the through hole (5), the back surface of the first push rod (6) is provided with a first abutting pad (7), the front surface of the first push rod (6) is provided with a stabilizing ring (8), the inside of the second connecting frame (4) is provided with a second push rod (9), the front surface of the second push rod (9) is provided with a second abutting pad (10).

2. A thermocouple with a sealed junction according to claim 1, characterized in that: The positions of the first abutting pad (7) and the second abutting pad (10) are symmetrical to each other, and the surfaces of the first abutting pad (7) and the second abutting pad (10) close to each other abut against the outer surface of the thermocouple body (1).

3. A thermocouple with a sealed junction as defined in claim 1, wherein: The right surface of the first connecting frame (3) is provided with a transparent telescopic cylinder (11), and the inner side wall of the transparent telescopic cylinder (11) is provided with a spring body (12).

4. A thermocouple with a sealed junction according to claim 3, wherein: The end of the spring body (12) away from the transparent telescopic cylinder (11) is provided with a limiting connecting column (13), the left surface of the limiting connecting column (13) is provided with a telescopic rod (14), and the telescopic rod (14) is provided with two groups.

5. A thermocouple with a sealed junction according to claim 4, wherein: The right surface of the limiting connecting column (13) is provided with a first connecting block (15), the back surface of the first connecting block (15) is provided with a fixing ring (16), the fixing ring (16) is matched with the thermocouple body (1), and the back surface of the fixing ring (16) is provided with a second connecting block (17).

6. A thermocouple with a sealed junction according to claim 1, wherein: The top surfaces of the first connecting frame (3) and the second connecting frame (4) are provided with a fixing plate (18), and the left surface of the fixing plate (18) is attached to the furnace body.

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