Quick-release thermocouple

Abstract

The utility model relates to the technical field of thermocouples, and discloses a quick-release thermocouple, which comprises a junction box and an inner tube, the bottom of the junction box is fixedly connected with a mounting block, a connecting assembly is mounted outside the mounting block, and a quick-release assembly is mounted outside the inner tube. The connecting assembly comprises a shell, the shell is fixedly connected to the top of the inner pipe, a clamping column is fixedly connected to the middle of the shell, a sliding groove is formed in the middle of the mounting block, a clamping groove is formed in the middle of the sliding groove, the clamping column is connected with the clamping groove in a clamped mode, and the connecting assembly further comprises a spring rod. The spring rod is fixedly connected to the middle of the sliding groove. According to the utility model, through clamping cooperation of the clamping column and the clamping groove in the connecting assembly, rapid installation or detachment of the junction box and the inner pipe is realized, the equipment maintenance time is greatly shortened, the maintenance efficiency in an industrial scene is improved, and the shutdown loss of the equipment is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to thermocouple technical field especially relates to a quick detach type thermocouple. BACKGROUND

[0002] Thermocouple is the temperature measuring instrument commonly used temperature measuring element, it directly measures temperature, and temperature signal is converted 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, insulating sleeve protection tube and terminal box main parts such as connection, usually and display instrument, recording instrument and electronic regulator are used in pairs, since thermocouple is an active sensor, no external power supply is needed during measurement, and use is very convenient, so it is often used to measure the temperature of gas or liquid in boiler, pipeline and solid surface.

[0003] In production operation, the industry usually adopts regular thermocouple extraction, and the coke block is removed by reciprocating friction between the coking place and the temperature measuring hole. The thermocouple needs to be replaced in time after damage. Since the thermocouple flange and the flange of the temperature measuring hole are fixed by bolts, and the thermocouple terminal box and the thermocouple protection sleeve are connected by threads, the work load of regular maintenance or replacement of thermocouple is extremely large, when the thermocouple is bent and deformed and cannot be taken out from the furnace, only the thermocouple terminal box can be removed, the temperature element in the terminal box is bent and deformed or adhered in the sleeve, the terminal box cannot be separated from the protection sleeve, the disassembly difficulty is extremely large, the disassembly work load is large, the labor intensity is high, and the replacement progress is slow after the thermocouple is damaged. Therefore, a quick detach type thermocouple is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a quick detach type thermocouple, which aims at improving the problem that the terminal box cannot be separated from the protection sleeve and the disassembly difficulty in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A quick detach type thermocouple, comprising a terminal box and an inner tube, the bottom of the terminal box is fixedly connected with a mounting block, the outer portion of the mounting block is provided with a connecting assembly, and the outer portion of the inner tube is provided with a quick detach assembly;

[0007] The connecting assembly comprises a shell, the shell is fixedly connected to the top of the inner tube, the middle portion of the shell is fixedly connected with a clamping column, the middle portion of the mounting block is provided with a sliding slot, the middle portion of the sliding slot is provided with a clamping groove, and the clamping column is clamped with the clamping groove;

[0008] As a further description of the above technical scheme:

[0009] The connecting assembly further comprises a spring rod fixedly connected to the middle part of the sliding groove, and a fixed inclined block fixedly connected to the top of the sliding groove and in contact with the surface of the clamping column.

[0010] As a further description of the above technical solution:

[0011] The quick release assembly comprises a connecting block fixedly connected to the outside of the inner tube, a clamping block fixedly connected to the bottom of the connecting block, a sleeve slidingly connected to the outside of the inner tube, a hollow slot formed in the middle part of the sleeve, and the clamping block is clamped with the hollow slot.

[0012] As a further description of the above technical solution:

[0013] The inside of the hollow slot is fixedly connected with a spring one, and the outside of the spring one is fixedly connected with a connecting plate.

[0014] As a further description of the above technical solution:

[0015] The connecting plate is slidingly connected to the inside of the hollow slot, and the surface of the connecting plate is in contact with the surface of the clamping block.

[0016] As a further description of the above technical solution:

[0017] The inside of the inner tube is provided with a thermocouple body, the inside of the inner tube is fixedly connected with a spring two, the outside of the spring two is fixedly connected with an arc-shaped fixed block, and the arc-shaped fixed block is in contact with the thermocouple body.

[0018] As a further description of the above technical solution:

[0019] The bottom of the sleeve is fixedly connected with a bottom tube.

[0020] As a further description of the above technical solution:

[0021] The bottom tube is sleeved outside the thermocouple body.

[0022] The utility model has the advantages of the following:

[0023] 1、In the utility model, the clamping column and the clamping groove in the connecting assembly are clamped and matched, the wiring box and the inner tube are quickly installed or disassembled, the equipment maintenance time is greatly shortened, the maintenance efficiency in the industrial scene is improved, and the equipment downtime loss is reduced.

[0024] 2、In the utility model, the clamping structure of the clamping block and the hollow slot and the spring two and the arc-shaped fixed block inside the inner tube can elastically clamp the thermocouple body, the influence of vibration on the temperature measuring element is reduced, the structure is stable during temperature measurement, the measurement precision and reliability are improved. DRAWINGS

[0025] Figure 1 A perspective view of a quick-release thermocouple according to the present application is shown in the accompanying drawings;

[0026] Figure 2 A structure diagram of a clamping post of a quick-release thermocouple according to the present application is shown in the accompanying drawings;

[0027] Figure 3 A structure diagram of an inner tube of a quick-release thermocouple according to the present application is shown in the accompanying drawings;

[0028] Figure 4 A structure diagram of a clamping block of a quick-release thermocouple according to the present application is shown in the accompanying drawings;

[0029] Figure 5 A structure diagram of an arc-shaped fixing block of a quick-release thermocouple according to the present application is shown in the accompanying drawings;

[0030] Figure 6 A perspective view of a quick-release thermocouple according to the present application is shown in the accompanying drawings; Figure 2 An enlarged view of part A in the above figure.

[0031] Legend:

[0032] 1, junction box; 2, inner tube; 3, shell; 4, connecting block; 5, sleeve; 6, bottom tube; 7, clamping post; 8, sliding slot; 9, spring I; 10, connecting plate; 11, clamping block; 12, spring II; 13, thermocouple body; 14, arc-shaped fixing block; 15, clamping slot; 16, mounting block; 17, spring rod; 18, fixing inclined block; 19, hollow slot. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] Reference is made to Figure 1 , Figure 2 , Figure 5 and Figure 6The utility model provides an embodiment: a quick detachable thermocouple, including junction box 1 and inner tube 2, the bottom fixed connection of junction box 1 has installation block 16, and the outside installation of installation block 16 has connecting assembly, and the outside installation of inner tube 2 has quick detach assembly, connecting assembly includes the casing 3, and the casing 3 fixed connection is at the top of inner tube 2, and the middle part fixed connection of casing 3 has the clamping post 7, and the middle part of installation block 16 is equipped with the sliding slot 8, and the middle part of sliding slot 8 is provided with the clamping slot 15, and the clamping post 7 is connected with the clamping slot 15. Connecting assembly still includes spring rod 17, and spring rod 17 fixed connection is at the middle part of sliding slot 8, and the top fixed connection of sliding slot 8 has fixed inclined block 18, and fixed inclined block 18 is contacted with the surface of clamping post 7, and the surface of clamping post 7 is contacted with fixed inclined block 18 in the middle part of sliding slot 8, and the inclined surface of inclined block pushes clamping post 7 and enters the clamping slot 15, realizes the clamping and fixes, and clamping post 7 is connected with the clamping slot 15, and spring rod 17 provides the sustained elastic force, so that the device is not easy to loosen under the environment such as vibration, high temperature, guarantees the stability of thermocouple signal transmission. Shorten the installation maintenance time, and be applicable to the scene that needs to frequently debug or replace. The inside of inner tube 2 is provided with thermocouple body 13, and spring two 12 is fixedly connected in the inside of inner tube 2, and arc fixed block 14 is fixedly connected outside spring two 12, and arc fixed block 14 is contacted with thermocouple body 13, and spring two 12 in the inside of inner tube 2 exerts elastic clamping force on thermocouple body 13 through arc fixed block 14, adapts to the temperature measuring element of different sizes, and simultaneously buffers equipment vibration or impact, avoids the rupture or poor contact of thermocouple body 13 due to rigid connection.

[0035] Referring to Figure 1 , Figure 3 and Figure 4The quick dismounting assembly comprises a connecting block 4 fixedly connected to the outside of the inner tube 2, a clamping block 11 fixedly connected to the bottom of the connecting block 4, a sleeve 5 slidingly connected to the outside of the inner tube 2, a hollow slot 19 formed in the middle of the sleeve 5, and the clamping block 11 being clamped with the hollow slot 19. The inside of the hollow slot 19 is fixedly connected with a spring 9, and the outside of the spring 9 is fixedly connected with a connecting plate 10. The connecting plate 10 is slidingly connected to the inside of the hollow slot 19 and is in contact with the surface of the clamping block 11. The clamping block 11 is inserted into the hollow slot 19, the clamping block 11 presses the connecting plate 10 downward, the spring 9 is compressed, and the clamping block 11 is completely inserted into the bottom of the hollow slot 19. At this time, the spring 9 is reset, the connecting plate 10 is pushed against the side surface of the clamping block 11, the clamping block 11 is locked in the hollow slot 19, and the sleeve 5 is fixedly connected with the inner tube 2. The quick dismounting assembly is convenient for quick maintenance of the thermocouple body 13 or replacement of damaged parts and is suitable for industrial environments that need frequent maintenance. The bottom of the sleeve 5 is fixedly connected with a bottom tube 6. The bottom tube 6 is sleeved on the outside of the thermocouple body 13 and is made of high-temperature-resistant and corrosion-resistant materials. The thermocouple body 13 is isolated from external high-temperature medium and corrosive gas or liquid, thereby prolonging the service life of the thermocouple body 13. In addition, when dismounting, the clamping relationship can be released by sliding the sleeve 5, the thermocouple body 13 is quickly separated from the measured environment together with the inner tube 2, and the bottom tube 6 can still remain in the original installation position, thereby facilitating quick installation next time.

[0036] Working principle: when the inner tube 2 and the junction box 1 need to be installed, the clamping column 7 on the shell 3 is inserted into the sliding slot 8 of the mounting block 16 and is slid downward to the clamping slot 15. After the clamping column 7 is embedded in the clamping slot 15, the clamping column 7 is tightly clamped with the clamping slot 15 through the limiting action of the inclined surface of the fixed inclined block 18, the junction box 1 and the inner tube 2 are fixedly connected, the spring rod 17 provides upward elastic support force, offsets part of vibration or external force, ensures the stability of the clamping state, prevents accidental loosening, and reversely rotates the shell 3 to drive the clamping column 7 to slide out of the clamping slot 15 along the inclined surface of the fixed inclined block 18, to separate the junction box 1 and the inner tube 2.

[0037] When the inner tube 2 and the bottom tube 6 need to be installed, the clamping block 11 is inserted into the empty slot 19 of the sleeve 5, and the sleeve 5 is pushed to slide along the inner tube 2. The clamping block 11 presses the connecting plate 10 in the empty slot 19, and the spring 9 is compressed. When the clamping block 11 slides to the end of the empty slot 19, the spring 9 is reset, pushes the connecting plate 10 to fix the clamping block 11 in the empty slot 19, and completes the connection of the sleeve 5 and the inner tube 2. The elastic force of the spring 9 realizes automatic locking, ensures that the sleeve 5 and the inner tube 2 are tightly fitted, and prevents displacement during temperature measurement. When disassembled, only the sleeve 5 needs to be pressed downward, the spring 9 is compressed, the connecting plate 10 slides inside the empty slot 19, the clamping block 11 is separated from the empty slot 19, and the sleeve 5 can be slid out along the inner tube 2, realizing quick disassembly. The junction box 1 and the sleeve 5 can be quickly disassembled without tools, and when the faulty parts need to be replaced or the thermocouple needs to be replaced as a whole, the downtime is greatly shortened.

[0038] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A quick-release thermocouple, comprising a junction box (1) and an inner tube (2), characterized in that: The bottom of the junction box (1) is fixedly connected to a mounting block (16), a connecting component is installed on the outside of the mounting block (16), and a quick-release component is installed on the outside of the inner tube (2). The connecting assembly includes a housing (3), which is fixedly connected to the top of the inner tube (2). A locking post (7) is fixedly connected to the middle of the housing (3). A sliding groove (8) is provided in the middle of the mounting block (16). A locking slot (15) is provided in the middle of the sliding groove (8). The locking post (7) is engaged with the locking slot (15).

2. The quick-release thermocouple according to claim 1, characterized in that: The connecting assembly also includes a spring rod (17), which is fixedly connected to the middle of the slide groove (8). A fixed inclined block (18) is fixedly connected to the top of the slide groove (8), and the fixed inclined block (18) is in contact with the surface of the locking post (7).

3. A quick-release thermocouple according to claim 1, characterized in that: The quick-release assembly includes a connecting block (4), which is fixedly connected to the outside of the inner tube (2). A locking block (11) is fixedly connected to the bottom of the connecting block (4). A sleeve (5) is slidably connected to the outside of the inner tube (2). A slot (19) is provided in the middle of the sleeve (5). The locking block (11) engages with the slot (19).

4. A quick-release thermocouple according to claim 3, characterized in that: A spring (9) is fixedly connected inside the slot (19), and a connecting plate (10) is fixedly connected outside the spring (9).

5. A quick-release thermocouple according to claim 4, characterized in that: The connecting plate (10) is slidably connected inside the slot (19), and the connecting plate (10) is in contact with the surface of the card block (11).

6. A quick-release thermocouple according to claim 3, characterized in that: Thermocouple body (13) is provided inside the inner tube (2). Spring 2 (12) is fixedly connected inside the inner tube (2). Arc-shaped fixing block (14) is fixedly connected outside the spring 2 (12). Arc-shaped fixing block (14) is in contact with thermocouple body (13).

7. A quick-release thermocouple according to claim 6, characterized in that: The bottom of the sleeve (5) is fixedly connected to the bottom tube (6).

8. A quick-release thermocouple according to claim 7, characterized in that: The bottom tube (6) is fitted over the outside of the thermocouple body (13).

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