A kind of air-blown armored thermocouple

Abstract

The invention discloses an air-blown armored thermocouple, relates to the technical field of air-blown armored thermocouples, and solves the problem that the bending state of the armored thermocouple wire is inconvenient to adjust and maintain during detection. The invention comprises a junction box, under which the armored thermocouple wire is arranged; further comprises a sleeve rotatably connected to the armored thermocouple wire and the junction box, on which an air inlet and an air outlet are arranged; an adjusting component, which is used for adjusting the bending degree of the armored thermocouple wire and is arranged on the outer surface of the armored thermocouple wire; a stabilizing component, which is used for cooperating with the adjusting component to stabilize the bending state of the armored thermocouple wire and is arranged on the adjusting component. The invention presses the armored thermocouple wire against a test piece, and bends the armored thermocouple wire by cooperating with an elastic rod through a rotating second rotating shaft; when the rotation stops, the plug-in connection of the plug-in plate and the third gear keeps the bent armored thermocouple wire in the state.

Description

Technical Field

[0001] The invention relates to the technical field of air-blown armored thermocouples, in particular to an air-blown armored thermocouple. Background Art

[0002] The structural principle of the air-blown thermocouple is that a certain air path is formed between the armored thermocouple temperature sensing element and the outer protective tube. Inert gas of a certain pressure is introduced into the air path to exclude or reduce the infiltration of reducing gas under high temperature and high pressure conditions of the thermocouple. The addition of trace tantalum elements increases the air absorption characteristics of the air-blown thermocouple, thereby extending the service life of the armored thermocouple. It is used as a key temperature sensor for synthetic ammonia complete sets.

[0003] Different models with different shapes are selected for different existing measurement sites. For the tortuous position of the connecting part, the Kaizhuang galvanic wire is bent during detection to keep the galvanic wire in a stable state. Except for the pressure at the end, there is no device in the middle to maintain the bending state of the Kaizhuang galvanic wire. In order to maintain the stable contact of the Kaizhuang galvanic wire during the detection process, it is generally affected by the conflict with other structures being detected, thereby affecting the temperature detection result of the Kaizhuang galvanic wire. For this reason, we propose an air-blown armored thermocouple. Summary of the invention

[0004] The object of the present invention is to provide an air-blown armored thermocouple to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an air-blown armored thermocouple, comprising a junction box, under which an armored thermocouple wire is arranged; further comprising a sleeve rotatably connected to the armored thermocouple wire and the junction box, the sleeve being provided with an air inlet and an air outlet; an adjusting component for adjusting the curvature of the armored thermocouple wire, the adjusting component being arranged on the outer surface of the armored thermocouple wire; and a stabilizing component for cooperating with the adjusting component to stabilize the bending state of the armored thermocouple wire, the stabilizing component being arranged on the adjusting component.

[0006] Preferably, the adjustment component includes a fixed plate connected and fixed to the outer surface of the armored thermocouple wire, an elastic rod fixedly connected to the bottom surface of the fixed plate, the bottom end of the elastic rod is rotatably connected to a first rotating shaft connected and fixed to the bottom of the armored thermocouple wire, a ring plate is slidably connected to the middle part of the armored thermocouple wire, the outer surface of the ring plate is rotatably connected to a second rotating shaft, an L-shaped plate is fixedly connected to the top surface of the ring plate, a telescopic rod with an elastic contraction function is fixedly connected between the L-shaped plate and the fixed plate, a slider is fixedly connected to the end of the second rotating shaft, a sliding groove slidably matched with the slider is opened on the elastic rod, and the second rotating shaft is provided with a movable component that passes through the fixed plate to move the second rotating shaft upward.

[0007] Preferably, the movable component includes a conveyor belt rotatably matched with the second rotating shaft, the conveyor belt passes through the fixed plate and rotatably matched with a third rotating shaft, the end of the third rotating shaft is fixedly connected to a first gear, and the first gear is meshed with a toothed plate connected and fixed to the outer surface of the armored electric wire.

[0008] Preferably, the movable component also includes a first bevel gear fixedly connected to the outer surface of the third rotating shaft, a second bevel gear is meshed with the top of the first bevel gear, a sleeve rod with a rectangular structure is fixedly connected to the middle axis of the second bevel gear, a sleeve tube is sleeved on the outer surface of the sleeve rod, and limiting components for stabilizing the movement of the second rotating shaft are provided at both ends of the third rotating shaft, and a control component for driving the sleeve tube to rotate is provided on the sleeve tube.

[0009] Preferably, the limiting assembly includes a U-shaped plate fixedly connected to the fixed plate, a ring is rotatably connected to the outer surface of the sleeve rod, a connecting rod rotatably connected to the end of the third rotating shaft is fixedly connected to the outer surface of the ring, the connecting rod is U-shaped and slidably cooperates with the U-shaped plate, and a limiting groove is provided on the outer surface of the armored electric wire for slidably cooperating with the second rotating shaft.

[0010] Preferably, the control component includes an inner gear ring located on the outer surface of the armored electric wire, and a plurality of second gears are meshed on the inner wall of the inner gear ring. Limiting plates connected and fixed to the outer surface of the armored electric wire are provided above and below the second gears. One of the second gears is connected and fixed to the sleeve, and the sleeve is rotatably connected to the limiting plate, and the central axes of the remaining second gears are rotatably connected to the limiting plate.

[0011] Preferably, the stabilization maintenance component includes a third gear fixedly connected to the outer surface of the second rotating shaft, the third gear is snap-fitted with an insert block, a compression spring is hung between the top surface of the insert block and the L-shaped plate, and an elastic pull rope arranged at an angle is hung between the side surface of the insert block and the L-shaped plate.

[0012] Preferably, an L-shaped adjusting rod is fixedly connected to the outer surface of the inner gear ring, a telescopic sleeve rod is sleeved on the adjusting rod, a plurality of fixing rods are fixedly connected to the outer surface of the sleeve, and a through hole is opened on the fixing rod for plugging and cooperating with the telescopic sleeve rod.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The invention presses the armored galvanic wire against the test piece, and bends the armored galvanic wire by cooperating with the elastic rod through the rotating second rotating shaft. When the rotation stops, the plugging of the plug plate and the third gear keeps the bent armored galvanic wire in the state. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the overall structure of the present invention in miniature;

[0017] Figure 3 This is a schematic diagram of the structure of the regulating component of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure splitting of the regulating component of the present invention;

[0019] Figure 5 for Figure 4 Schematic diagram of the structure of the Zhongweiwei component;

[0020] Figure 6 for Figure 2 Schematic diagram of the local structure;

[0021] Figure 7 for Figure 6 The structural schematic diagram in which the fixed disk is removed;

[0022] Figure 8 for Figure 7 A schematic diagram of the structure in which the sleeve is removed;

[0023] Fig. 9 for Figure 8 A schematic diagram of the middle structure from the side;

[0024] Fig.10 for Fig. 9 Schematic diagram of the structural disassembly without the armored galvanic wire;

[0025] Fig.11 for Fig.10 A magnified view of the local structure;

[0026] Fig.12 for Fig.11 Schematic diagram of the structure splitting.

[0027] In the figure: 1-junction box; 2-armored electric couple wire; 3-sleeve; 4-telescopic sleeve rod; 5-fixed rod; 6-adjustment component; 7-fixed plate; 8-elastic rod; 9-first rotating shaft; 10-ring plate; 11-second rotating shaft; 12-L-shaped plate; 13-telescopic rod; 14-slider; 15-sliding groove; 16-movable component; 17-conveyor belt; 18-third rotating shaft; 19-first gear; 20-tooth plate; 21-first bevel gear; 22-second bevel gear; 23-sleeve rod; 24-sleeve; 25-limiting component; 26-U-shaped plate; 27-ring; 28-connecting rod; 29-control component; 30-inner gear ring; 31-second gear; 32-limiting plate; 33-limiting groove; 34-stabilization component; 35-third gear; 36-insert block; 37-compression spring; 38-elastic pull rope; 39-adjustment rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1

[0030] See also Figure 1-Figure 2 The figure shows an air-blown armored thermocouple, comprising a junction box 1, under which an armored thermocouple wire 2 is arranged; further comprising a sleeve 3 rotatably connected to the armored thermocouple wire 2 and the junction box 1, the sleeve 3 being provided with an air inlet and an air outlet; an adjusting component 6 for adjusting the curvature of the armored thermocouple wire 2, the adjusting component 6 being arranged on the outer surface of the armored thermocouple wire 2; a stabilizing component 34, the stabilizing component 34 being arranged on the adjusting component 6 for cooperating with the adjusting component 6 to stabilize the curvature of the armored thermocouple wire 2.

[0031] In this embodiment, during the detection process, the armored galvanic wire 2 is pressed against the test piece, and the armored galvanic wire 2 is gradually bent by the adjustment component 6. During the operation of the adjustment component 6, the stabilization component 34 cannot fix the adjustment component 6 in a moving state. When the adjustment component 6 stops running, the stabilization component 34 fixes the adjustment component 6 to ensure the bending state of the armored galvanic wire 2.

[0032] Embodiment 2

[0033] See also Figure 1-Figure 2 The figure shows an air-blown armored thermocouple, comprising a junction box 1, under which an armored thermocouple wire 2 is arranged; further comprising a sleeve 3 rotatably connected to the armored thermocouple wire 2 and the junction box 1, the sleeve 3 being provided with an air inlet and an air outlet; an adjusting component 6 for adjusting the curvature of the armored thermocouple wire 2, the adjusting component 6 being arranged on the outer surface of the armored thermocouple wire 2; a stabilizing component 34, the stabilizing component 34 being arranged on the adjusting component 6 for cooperating with the adjusting component 6 to stabilize the curvature of the armored thermocouple wire 2.

[0034] See also Figure 3-Figure 4The adjustment component 6 shown in the figure includes a fixed plate 7 connected and fixed to the outer surface of the armored thermocouple wire 2, an elastic rod 8 is fixedly connected to the bottom surface of the fixed plate, and the bottom end of the elastic rod 8 is rotatably connected to a first rotating shaft 9 connected and fixed to the bottom of the armored thermocouple wire 2, a ring plate 10 is slidably connected to the middle part of the armored thermocouple wire 2, and a second rotating shaft 11 is rotatably connected to the outer surface of the ring plate 10, an L-shaped plate 12 is fixedly connected to the top surface of the ring plate 10, and a telescopic rod 13 with an elastic contraction function is fixedly connected between the L-shaped plate 12 and the fixed plate 7, a slider 14 is fixedly connected to the end of the second rotating shaft 11, a sliding groove 15 that slidably cooperates with the slider 14 is opened on the elastic rod 8, and a movable component 16 that passes through the fixed plate 7 to move the second rotating shaft 11 upward is provided on the second rotating shaft 11.

[0035] See also Figure 6-Figure 8 The movable component 16 shown in the figure includes a conveyor belt 17 that rotates with the second rotating shaft 11. The conveyor belt 17 passes through the fixed plate 7 and rotates with the third rotating shaft 18. The end of the third rotating shaft 18 is fixedly connected to a first gear 19. The first gear 19 is meshed with a toothed plate 20 that is connected and fixed to the outer surface of the armored electric couple wire 2.

[0036] See also Figure 7-Figure 9 The movable component 16 shown in the figure also includes a first bevel gear 21 connected and fixed to the outer surface of the third rotating shaft 18, a second bevel gear 22 is meshed with the top of the first bevel gear 21, a sleeve rod 23 with a rectangular structure is fixedly connected to the middle axis of the second bevel gear 22, a sleeve 24 is sleeved on the outer surface of the sleeve rod 23, and limit components 25 for stabilizing the movement of the second rotating shaft 11 are provided at both ends of the third rotating shaft 18, and a control component 29 for driving the sleeve 24 to rotate is provided on the sleeve 24.

[0037] See also Figure 6 and Figure 9-11 The limiting assembly 25 shown in the figure includes a U-shaped plate 26 connected and fixed to the fixed plate 7, a sleeve rod 23 has a ring 27 rotatably connected to the outer surface, and the outer surface of the ring 27 is fixedly connected to a connecting rod 28 rotatably connected to the end of the third rotating shaft 18, the connecting rod 28 is U-shaped and slidably cooperates with the U-shaped plate 26, and a limiting groove 33 is provided on the outer surface of the armored electric couple wire 2 to slide with the second rotating shaft 11.

[0038] See also Figure 5 The stabilization component 34 shown in the figure includes a third gear 35 connected and fixed to the outer surface of the second rotating shaft 11, and an insert block 36 is snap-fitted on the third gear 35. A compression spring 37 is hung between the top surface of the insert block 36 and the L-shaped plate 12, and an elastic pull rope 38 arranged obliquely is hung between the side surface of the insert block 36 and the L-shaped plate 12.

[0039] In this embodiment, the armored electric couple wire 2 is pressed against the test piece, and the sleeve 24 is rotated by operating the control component 29, so that the sleeve rod 23 is rotated, the second bevel gear 22 is rotated, driving the first bevel gear 21 to rotate, and the second rotating shaft 11 is rotated, driving the first gear 19 to rotate, and under the limiting action of the tooth plate 20 and the limiting groove 33 and the connecting rod 28 and the U-shaped plate 26, the second gear 31 is moved upward, wherein due to the action of the connecting rod 28, the first bevel gear 21 and the second bevel gear 22 are always kept in a relative meshing state, and the rotating second rotating shaft 11 passes through the conveyor belt 17, and under the limiting action of the telescopic rod 13, the first rotating shaft 9 is rotated, thereby driving the slide plate to rotate, so that the elastic rod 8 is rotated, Thereby, the armored galvanic wire 2 is driven to rotate to complete the adjustment of the curvature, and the second rotating shaft 11 simultaneously drives the first rotating shaft 9 to move upward (under the support of the telescopic rod 13), so as to facilitate the regional adjustment of the main bending force point of the elastic rod 8, so that the adjustment is more practical. When the first rotating shaft 9 rotates, the third gear 35 rotates, and the rotating third gear 35 causes the plug 36 to move upward first, and causes the plug 36 to be in a tilted state, so that the plug 36 cannot fix the third gear 35. When the first rotating shaft 9 stops rotating, that is, the bending adjustment of the armored galvanic wire 2 is completed, under the action of the elastic pull rope 38 and the compression spring 37, the plug 36 is plugged and fixed to the third gear 35 to ensure the bending state of the armored galvanic wire 2 after adjustment.

[0040] Embodiment 3

[0041] See also Figure 1-Figure 2 The figure shows an air-blown armored thermocouple, comprising a junction box 1, under which an armored thermocouple wire 2 is arranged; further comprising a sleeve 3 rotatably connected to the armored thermocouple wire 2 and the junction box 1, the sleeve 3 being provided with an air inlet and an air outlet; an adjusting component 6 for adjusting the curvature of the armored thermocouple wire 2, the adjusting component 6 being arranged on the outer surface of the armored thermocouple wire 2; a stabilizing component 34, the stabilizing component 34 being arranged on the adjusting component 6 for cooperating with the adjusting component 6 to stabilize the curvature of the armored thermocouple wire 2.

[0042] See also Figure 3-Figure 4 The adjustment component 6 shown in the figure includes a fixed plate 7 connected and fixed to the outer surface of the armored thermocouple wire 2, an elastic rod 8 is fixedly connected to the bottom surface of the fixed plate, and the bottom end of the elastic rod 8 is rotatably connected to a first rotating shaft 9 connected and fixed to the bottom of the armored thermocouple wire 2, a ring plate 10 is slidably connected to the middle part of the armored thermocouple wire 2, and a second rotating shaft 11 is rotatably connected to the outer surface of the ring plate 10, an L-shaped plate 12 is fixedly connected to the top surface of the ring plate 10, and a telescopic rod 13 with an elastic contraction function is fixedly connected between the L-shaped plate 12 and the fixed plate 7, a slider 14 is fixedly connected to the end of the second rotating shaft 11, a sliding groove 15 that slidably cooperates with the slider 14 is opened on the elastic rod 8, and a movable component 16 that passes through the fixed plate 7 to move the second rotating shaft 11 upward is provided on the second rotating shaft 11.

[0043] See also Figure 6-Figure 8 The movable component 16 shown in the figure includes a conveyor belt 17 that rotates with the second rotating shaft 11. The conveyor belt 17 passes through the fixed plate 7 and rotates with the third rotating shaft 18. The end of the third rotating shaft 18 is fixedly connected to a first gear 19. The first gear 19 is meshed with a toothed plate 20 that is connected and fixed to the outer surface of the armored electric couple wire 2.

[0044] See also Figure 7-Figure 9 The movable component 16 shown in the figure also includes a first bevel gear 21 connected and fixed to the outer surface of the third rotating shaft 18, a second bevel gear 22 is meshed with the top of the first bevel gear 21, a sleeve rod 23 with a rectangular structure is fixedly connected to the middle axis of the second bevel gear 22, a sleeve 24 is sleeved on the outer surface of the sleeve rod 23, and limit components 25 for stabilizing the movement of the second rotating shaft 11 are provided at both ends of the third rotating shaft 18, and a control component 29 for driving the sleeve 24 to rotate is provided on the sleeve 24.

[0045] See also Figure 6 and Figure 9-11 The limiting assembly 25 shown in the figure includes a U-shaped plate 26 connected and fixed to the fixed plate 7, a sleeve rod 23 has a ring 27 rotatably connected to the outer surface, and the outer surface of the ring 27 is fixedly connected to a connecting rod 28 rotatably connected to the end of the third rotating shaft 18, the connecting rod 28 is U-shaped and slidably cooperates with the U-shaped plate 26, and a limiting groove 33 is provided on the outer surface of the armored electric couple wire 2 to slide with the second rotating shaft 11.

[0046] See also Figure 10-12 The control assembly 29 shown in the figure includes an inner gear ring 30 located on the outer surface of the armored galvanic wire 2, and a plurality of second gears 31 are meshed on the inner wall of the inner gear ring 30. Limiting plates 32 connected and fixed to the outer surface of the armored galvanic wire 2 are provided above and below the second gears 31. One of the second gears 31 is connected and fixed to the sleeve 24, and the sleeve 24 is rotatably connected to the limiting plate 32. The central axes of the remaining second gears 31 are rotatably connected to the limiting plates 32.

[0047] See also Figure 1-Figure 2 and Fig.10 The outer surface of the inner gear ring 30 shown in the figure is fixedly connected with an L-shaped adjusting rod 39, and a telescopic sleeve rod 4 is sleeved on the adjusting rod 39. The outer surface of the sleeve 3 is fixedly connected with a plurality of fixing rods 5, and the fixing rods 5 are provided with through holes for plugging and cooperating with the telescopic sleeve rod 4.

[0048] See also Figure 5 The stabilization component 34 shown in the figure includes a third gear 35 connected and fixed to the outer surface of the second rotating shaft 11, and an insert block 36 is snap-fitted on the third gear 35. A compression spring 37 is hung between the top surface of the insert block 36 and the L-shaped plate 12, and an elastic pull rope 38 arranged obliquely is hung between the side surface of the insert block 36 and the L-shaped plate 12.

[0049] In this embodiment, the inner gear ring 30 is rotated by rotating the adjusting rod 39, and the second gear 31 is driven to rotate under the action of the limit plate 32, and the second gear 31 drives the sleeve 24 to rotate. At the same time, the rotating adjusting rod 39 can drive the sleeve 3 to rotate, thereby changing the position of the air inlet and the air outlet, avoiding inappropriate blowing angles due to the fixed air inlet and the air outlet, increasing the applicability of the adjustment, and through the cooperation of the through hole and the telescopic sleeve rod 4, it is easy to install and disassemble.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air-blown armored thermocouple, comprising: A junction box (1), wherein an armored galvanic wire (2) is provided below the junction box (1); It is characterized by further comprising: A sleeve (3) rotatably connected to the armored galvanic wire (2) and the junction box (1), wherein the sleeve (3) is provided with an air inlet and an air outlet; An adjusting component (6), used for adjusting the curvature of the armored galvanic wire (2), the adjusting component (6) being arranged on the outer surface of the armored galvanic wire (2); A stabilizing component (34), which is used to cooperate with the adjusting component (6) to stabilize the bending state of the armored galvanic wire (2), and the stabilizing component (34) is arranged on the adjusting component (6); The adjustment component (6) comprises a fixed plate (7) connected and fixed to the outer surface of the armored galvanic wire (2); an elastic rod (8) is fixedly connected to the bottom surface of the fixed plate (7); the bottom end of the elastic rod (8) is rotatably connected to a first rotating shaft (9) connected and fixed to the bottom of the armored galvanic wire (2); a ring plate (10) is slidably connected to the middle of the armored galvanic wire (2); the outer surface of the ring plate (10) is rotatably connected to a second rotating shaft (11); an L-shaped plate (12) is fixedly connected to the top surface of the ring plate (10); a telescopic rod (13) with an elastic contraction function is fixedly connected between the L-shaped plate (12) and the fixed plate (7); a slider (14) is fixedly connected to the end of the second rotating shaft (11); a sliding groove (15) slidably matched with the slider (14) is provided on the elastic rod (8); and a movable component (16) is provided on the second rotating shaft (11) to pass through the fixed plate (7) and move the second rotating shaft (11) upward; The stabilizing component (34) includes a third gear (35) connected and fixed to the outer surface of the second rotating shaft (11), and an insert block (36) is snap-fitted on the third gear (35). A compression spring (37) is hung between the top surface of the insert block (36) and the L-shaped plate (12), and an elastic pull rope (38) arranged obliquely is hung between the side surface of the insert block (36) and the L-shaped plate (12).

2. The air-blown armored thermocouple according to claim 1, characterized in that: The movable component (16) comprises a conveyor belt (17) rotatably matched with the second rotating shaft (11); the conveyor belt (17) passes through the fixed plate (7) and rotatably matched with a third rotating shaft (18); the end of the third rotating shaft (18) is fixedly connected with a first gear (19); the first gear (19) is meshed with a toothed plate (20) connected and fixed to the outer surface of the armored electric couple wire (2).

3. The air-blown armored thermocouple according to claim 2, characterized in that: The movable component (16) further comprises a first bevel gear (21) connected and fixed to the outer surface of the third rotating shaft (18); a second bevel gear (22) is meshed on the top of the first bevel gear (21); a sleeve rod (23) having a rectangular structure is fixedly connected to the central axis of the second bevel gear (22); a sleeve tube (24) is sleeved on the outer surface of the sleeve rod (23); limiting components (25) for stabilizing the movement of the second rotating shaft (11) are provided at both ends of the third rotating shaft (18); and a control component (29) for driving the sleeve tube (24) to rotate is provided on the sleeve tube (24).

4. The air-blown armored thermocouple according to claim 3, characterized in that: The limiting assembly (25) comprises a U-shaped plate (26) connected and fixed to the fixed plate (7); a sleeve ring (27) is rotatably connected to the outer surface of the sleeve rod (23); a connecting rod (28) rotatably connected to the end of the third rotating shaft (18) is fixedly connected to the outer surface of the sleeve ring (27); the connecting rod (28) is U-shaped and slidably matched with the U-shaped plate (26); and a limiting groove (33) slidably matched with the second rotating shaft (11) is provided on the outer surface of the armored galvanic wire (2).

5. The air-blown armored thermocouple according to claim 4, characterized in that: The control component (29) comprises an inner gear ring (30) located on the outer surface of the armored galvanic wire (2), the inner wall of the inner gear ring (30) is meshed with a plurality of second gears (31), and upper and lower portions of the second gears (31) are provided with limit plates (32) connected and fixed to the outer surface of the armored galvanic wire (2), one of the second gears (31) is connected and fixed to the sleeve (24), and the sleeve (24) is rotationally connected to the limit plate (32), and the central axes of the remaining second gears (31) are rotationally connected to the limit plates (32).

6. The air-blown armored thermocouple according to claim 5, characterized in that: An L-shaped adjusting rod (39) is fixedly connected to the outer surface of the inner gear ring (30), a telescopic sleeve rod (4) is sleeved on the adjusting rod (39), a plurality of fixing rods (5) are fixedly connected to the outer surface of the sleeve (3), and the fixing rods (5) are provided with through holes for plugging and matching with the telescopic sleeve rods (4).

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