Thermocouple fixing device

Abstract

The utility model relates to the technical field of thermocouples, and discloses a thermocouple fixing device which comprises a thermocouple and a fixing cylinder, the thermocouple is inserted into the fixing cylinder, and an installation mechanism is arranged in the fixing cylinder. The installation mechanism comprises a communication bin, a fixed heat insulation structure, a movable heat insulation structure and a fixing part, the communication bin is fixedly installed on the outer wall of the fixing cylinder, a thermocouple is clamped and fixed through a heat insulation ring composed of the fixed heat insulation structure and the movable heat insulation structure, heat insulation is conducted at the same time, and the thermocouple is secondarily fixed through the fixing part. The installation piece is driven to move by rotating the lead screw, and then the movable heat insulation structure is driven to move, so that the movable heat insulation structure and the fixed heat insulation structure are separated or spliced, and therefore when the thermocouple is inserted or pulled out, the thermocouple can be installed more stably. And heat insulation materials (asbestos plates) on the fixed heat insulation structure and the movable heat insulation structure cannot be damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of thermocouples, in particular to a thermocouple fixing device. Background Art

[0002] On heat treatment equipment (especially air circulation electric furnaces), we monitor key temperature points such as temperature control points, high temperature points, and low temperature points in each heating zone inside the furnace by inserting the process couple (armored thermocouple) from the outer wall into the furnace. After determining the insertion depth, asbestos rope or asbestos cloth and other heat-resistant materials are used to fill the process couple hole to fix the process couple and prevent the temperature loss in the furnace. However, when replacing or repairing the process couple, this method requires taking out the heat-resistant materials such as asbestos rope or asbestos cloth and then adding them back, which is more cumbersome, and the heat-resistant materials such as asbestos rope or asbestos cloth are also easily damaged when taken out. Utility Model Content

[0003] The purpose of the utility model is to provide a thermocouple fixing device to solve the problems raised in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical solutions: a thermocouple fixing device, comprising a thermocouple and a fixing tube, wherein the thermocouple is inserted into the fixing tube, and a mounting mechanism is arranged in the fixing tube;

[0005] The mounting mechanism includes a connecting bin, a fixed heat insulation structure, a movable heat insulation structure, and a fixed component. The connecting bin is fixedly mounted on the outer wall of the fixed cylinder, and the interior of the connecting bin is connected to the interior of the fixed cylinder. The fixed heat insulation structure is fixedly mounted on the inner wall of the fixed cylinder. The movable heat insulation structure is movably arranged in the fixed cylinder, and the fixed heat insulation structure and the movable heat insulation structure are combined into a heat insulation ring. The fixed heat insulation structure and the movable heat insulation structure are sleeved on the thermocouple. A mounting plate is fixedly mounted on the outer wall of the movable heat insulation structure. A screw rod is rotatably connected to the outer wall of the mounting plate through a bearing. The outer wall of the screw rod is threadedly connected to the inner wall of the front side of the connecting bin. A guide rod is fixedly mounted on the outer wall of the mounting plate. The guide rod movably passes through the inner wall of the connecting bin. The fixed component is arranged between the thermocouple and the fixed cylinder.

[0006] Furthermore, the fixing component includes an internal threaded tube and an elastic card, the elastic card is fixedly installed on the inner wall of the fixing tube, the internal threaded tube is threadedly sleeved on the thermocouple, the outer wall of the internal threaded tube is provided with an arc groove, and the bottom end of the elastic card is inserted into the arc groove.

[0007] Furthermore, the guide rod is consistent with the length of the screw rod, a turning handle is fixedly mounted on the front end of the screw rod, and an anti-slip protrusion is provided on the outer wall of the turning handle.

[0008] Furthermore, the fixed heat-insulating structure and the movable heat-insulating structure have the same composition and structure, and both the fixed heat-insulating structure and the movable heat-insulating structure include a support body and a heat-insulating material, and the heat-insulating material is fixedly installed on the inner side of the support body.

[0009] Furthermore, a mounting plate is fixedly mounted on the bottom of the fixing tube, a heat insulating pad is fixedly mounted on the bottom of the mounting plate, and a threaded hole is formed on the mounting plate.

[0010] Furthermore, the heat insulating material is fixedly connected to the support body via a high temperature resistant thermosetting adhesive, and the fixed heat insulating structure is fixedly connected to the fixed cylinder via a high temperature resistant thermosetting adhesive.

[0011] Furthermore, a stop ring is fixedly installed on the inner wall of the fixed cylinder, and the stop ring is located below the internal threaded tube.

[0012] Furthermore, the elastic card includes a V-shaped upper half and an arc-shaped lower half, the top of the elastic card is fixedly connected to the inner wall of the fixed cylinder, and the lower half of the elastic card is inserted into the arc groove.

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

[0014] 1. The thermocouple is clamped and fixed by the insulation ring composed of the fixed insulation structure and the movable insulation structure, and the insulation is performed at the same time. The thermocouple is fixed for a second time by the fixed component, so that the installation of the thermocouple is more stable. The installation piece is driven to move by rotating the screw rod, and then the movable insulation structure is driven to move, so that the movable insulation structure is separated or spliced ​​from the fixed insulation structure, so that when the thermocouple is inserted or pulled out, the insulation material (asbestos board) on the fixed insulation structure and the movable insulation structure will not be damaged;

[0015] 2. A support body is provided to support the thermal insulation material, so that when the fixed thermal insulation structure and the movable thermal insulation structure are installed, the fixed thermal insulation structure and the movable thermal insulation structure are not easily deformed by force, and when the fixed thermal insulation structure and the movable thermal insulation structure are spliced, the fixed thermal insulation structure and the movable thermal insulation structure are also not easily deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a structural schematic diagram of a front cross-sectional view of a fixing cylinder of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the fixed heat insulation structure and the movable heat insulation structure of the utility model;

[0019] Figure 4This is a structural schematic diagram of an exploded view of a fixing component of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the elastic card of the utility model.

[0021] In the figure: 1. thermocouple; 2. fixing cylinder; 3. mounting mechanism; 301. connecting chamber; 302. fixed insulation structure; 303. movable insulation structure; 304. mounting plate; 305. screw rod; 306. guide rod; 307. fixing component; 3071. internal threaded tube; 3072. elastic card; 3073. arc groove; 4. mounting plate; 5. insulation pad; 6. supporting body; 7. insulation material; 8. turning handle; 9. stop ring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-Figure 5 The utility model provides a technical solution: a thermocouple fixing device, comprising a thermocouple 1 and a fixing tube 2, wherein the thermocouple 1 is inserted into the fixing tube 2, and a mounting mechanism 3 is arranged in the fixing tube 2;

[0024] The mounting mechanism 3 comprises a connecting chamber 301, a fixed heat-insulating structure 302, a movable heat-insulating structure 303, and a fixing component 307. The connecting chamber 301 is fixedly mounted on the outer wall of the fixed cylinder 2. The interior of the connecting chamber 301 is connected to the interior of the fixed cylinder 2. The fixed heat-insulating structure 302 is fixedly mounted on the inner wall of the fixed cylinder 2. The movable heat-insulating structure 303 is movably arranged in the fixed cylinder 2. The fixed heat-insulating structure 302 and the movable heat-insulating structure 303 are combined into a heat-insulating ring. The fixed heat-insulating structure 302 and the movable heat-insulating structure 303 are sleeved on the thermocouple 1. The outer wall of the movable heat-insulating structure 303 is fixedly mounted with a mounting plate 304. The outer wall of the mounting plate 304 is rotatably connected with a screw rod 305 through a bearing. The outer wall of the screw rod 305 is threadedly connected to the inner wall of the front face of the connecting chamber 301. A guide rod 306 is fixedly installed on the outer wall, and the guide rod 306 movably penetrates the inner wall of the connecting chamber 301. The fixing component 307 is arranged between the thermocouple 1 and the fixing cylinder 2. The thermocouple 1 is clamped and fixed by the heat insulation ring composed of the fixed heat insulation structure 302 and the movable heat insulation structure 303, and heat insulation is performed at the same time. The thermocouple 1 is fixed twice by the fixing component 307, so that the installation of the thermocouple 1 is more stable. The installation sheet 304 is driven to move by rotating the screw rod 305, and then the movable heat insulation structure 303 is driven to move, so that the movable heat insulation structure 303 is separated or spliced ​​from the fixed heat insulation structure 302, so that when the thermocouple 1 is inserted or pulled out, the heat insulation material (asbestos board) on the fixed heat insulation structure 302 and the movable heat insulation structure 303 will not be damaged;

[0025] The fixing component 307 includes an internal threaded tube 3071 and an elastic card 3072. The elastic card 3072 is fixedly installed on the inner wall of the fixing tube 2. The internal threaded tube 3071 is threadedly sleeved on the thermocouple 1. The outer wall of the internal threaded tube 3071 is provided with an arc groove 3073. The bottom end of the elastic card 3072 is inserted into the arc groove 3073. The internal threaded tube 3071 is fixed by inserting the elastic card 3072 into the arc groove 3073, thereby fixing the thermocouple 1.

[0026] The guide rod 306 is consistent with the length of the screw rod 305. A turning handle 8 is fixedly installed at the front end of the screw rod 305. The outer wall of the turning handle 8 is provided with an anti-slip protrusion. The turning handle 8 is arranged so that the hand is not easy to slip when the screw rod 305 is turned.

[0027] The composition and structure of the fixed thermal insulation structure 302 and the movable thermal insulation structure 303 are consistent. The fixed thermal insulation structure 302 and the movable thermal insulation structure 303 both include a support body 6 and a thermal insulation material 7. The thermal insulation material 7 is fixedly installed on the inner side of the support body 6. The support body 6 is provided to support the thermal insulation material 7, so that when the fixed thermal insulation structure 302 and the movable thermal insulation structure 303 are installed, the fixed thermal insulation structure 302 and the movable thermal insulation structure 303 are not easily deformed by force, and when the fixed thermal insulation structure 302 and the movable thermal insulation structure 303 are spliced, the fixed thermal insulation structure 302 and the movable thermal insulation structure 303 are also not easily deformed;

[0028] A mounting plate 4 is fixedly mounted on the bottom of the fixing tube 2, and a heat insulating pad 5 is fixedly mounted on the bottom of the mounting plate 4. A threaded hole is provided on the mounting plate 4. The mounting plate 4 is used to mount the fixing tube 2 on the furnace body. The heat insulating pad 5 is used to reduce heat transfer between the furnace body and the mounting plate 4, thereby preventing the mounting plate 4 and the fixing tube 2 from overheating and becoming hot.

[0029] The heat-insulating material 7 is fixedly connected to the support body 6 by a high-temperature resistant thermosetting adhesive, and the fixed heat-insulating structure 302 is fixedly connected to the fixed tube 2 by a high-temperature resistant thermosetting adhesive. The high-temperature resistant thermosetting adhesive used is ZS-1071 high-temperature resistant inorganic adhesive;

[0030] A stop ring 9 is fixedly installed on the inner wall of the fixed cylinder 2. The stop ring 9 is located below the internal threaded tube 3071. The stop ring 9 is provided to support the internal threaded tube 3071 and prompt the internal threaded tube 3071 to be inserted into place.

[0031] The elastic card 3072 includes a V-shaped upper half and an arc-shaped lower half. The top of the elastic card 3072 is fixedly connected to the inner wall of the fixed tube 2, and the lower half of the elastic card 3072 is inserted into the arc groove 3073, so that the elastic card 3072 can be deformed under force, thereby making the lower half of the elastic card 3072 movable. The lower half of the elastic card 3072 is set to an arc shape, so that the elastic card 3072 can be better inserted into and detached from the arc groove 3073.

[0032] Working principle: When in use, screw the internal threaded tube 3071 onto the thermocouple 1, and then insert the thermocouple 1 into the fixed tube 2 until the internal threaded tube 3071 contacts the stop ring 9. During the insertion of the thermocouple 1, the internal threaded tube 3071 extends into the fixed tube 2, pushing the elastic card 3072 to deform until the bottom end of the elastic card 3072 is stuck in the arc groove 3073, and then rotate the screw rod 305 to drive the mounting plate 304 to move backward, thereby driving the movable thermal insulation structure 3 03 moves backward to form an insulation ring with the fixed insulation structure 302, and presses and fixes the thermocouple 1 to achieve the installation of the thermocouple 1. When the thermocouple 1 needs to be removed, the screw rod 305 is rotated in the opposite direction so that the screw rod 305 drives the installation plate 304 to move forward, so that the movable insulation structure 303 is separated from the fixed insulation structure 302, and the thermocouple 1 is pulled upward to drive the internal threaded tube 3071 to move upward, so that the elastic card 3072 is disengaged from the arc groove 3073, and the thermocouple 1 can be removed.

[0033] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A thermocouple fixing device, comprising a thermocouple (1) and a fixing tube (2), characterized in that: The thermocouple (1) is inserted into a fixing tube (2), and a mounting mechanism (3) is provided in the fixing tube (2); The mounting mechanism (3) comprises a connecting chamber (301), a fixed heat-insulating structure (302), a movable heat-insulating structure (303), and a fixing component (307); the connecting chamber (301) is fixedly mounted on the outer wall of the fixing cylinder (2); the interior of the connecting chamber (301) is connected to the interior of the fixing cylinder (2); the fixed heat-insulating structure (302) is fixedly mounted on the inner wall of the fixing cylinder (2); the movable heat-insulating structure (303) is movably arranged in the fixing cylinder (2); the fixed heat-insulating structure (302) and the movable heat-insulating structure (303) are combined into a heat-insulating ring; the fixed heat-insulating structure (302), a movable heat-insulating structure (303) is sleeved on the thermocouple (1), a mounting plate (304) is fixedly mounted on the outer wall of the movable heat-insulating structure (303), the outer wall of the mounting plate (304) is rotatably connected to a screw rod (305) via a bearing, the outer wall of the screw rod (305) is threadedly connected to the front inner wall of the connecting chamber (301), a guide rod (306) is fixedly mounted on the outer wall of the mounting plate (304), the guide rod (306) movably penetrates the inner wall of the connecting chamber (301), and the fixing component (307) is arranged between the thermocouple (1) and the fixing cylinder (2).

2. A thermocouple fixing device according to claim 1, characterized in that: The fixing component (307) comprises an internal threaded tube (3071) and an elastic card (3072); the elastic card (3072) is fixedly mounted on the inner wall of the fixing tube (2); the internal threaded tube (3071) is threadedly sleeved on the thermocouple (1); an arc groove (3073) is formed on the outer wall of the internal threaded tube (3071); and the bottom end of the elastic card (3072) is inserted into the arc groove (3073).

3. A thermocouple fixing device according to claim 1, characterized in that: The guide rod (306) is consistent in length with the screw rod (305), a turning handle (8) is fixedly mounted on the front end of the screw rod (305), and an anti-slip protrusion is provided on the outer wall of the turning handle (8).

4. A thermocouple fixing device according to claim 1, characterized in that: The fixed heat insulation structure (302) and the movable heat insulation structure (303) have the same composition and structure. The fixed heat insulation structure (302) and the movable heat insulation structure (303) both include a support body (6) and a heat insulation material (7). The heat insulation material (7) is fixedly installed on the inner side of the support body (6).

5. A thermocouple fixing device according to claim 1, characterized in that: A mounting plate (4) is fixedly mounted on the bottom of the fixing cylinder (2), a heat insulation pad (5) is fixedly mounted on the bottom of the mounting plate (4), and a threaded hole is provided on the mounting plate (4).

6. A thermocouple fixing device according to claim 4, characterized in that: The heat insulating material (7) is fixedly connected to the support body (6) via a high temperature resistant thermosetting adhesive, and the fixed heat insulating structure (302) is fixedly connected to the fixed cylinder (2) via a high temperature resistant thermosetting adhesive.

7. A thermocouple fixing device according to claim 1, characterized in that: A stop ring (9) is fixedly mounted on the inner wall of the fixed cylinder (2), and the stop ring (9) is located below the internal threaded tube (3071).

8. A thermocouple fixing device according to claim 2, characterized in that: The elastic card (3072) comprises a V-shaped upper half and an arc-shaped lower half, the top of the elastic card (3072) is fixedly connected to the inner wall of the fixed cylinder (2), and the lower half of the elastic card (3072) is inserted into the arc groove (3073).

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