Guide bracket for improving stability of filament thermocouple during movement

Abstract

The utility model discloses a guide bracket for improving the stability of a filament thermocouple during movement, which belongs to the technical field of guide brackets and comprises a translation sliding mechanism, a thermocouple concentric positioning mechanism and a thermocouple guide bracket. The thermocouple concentric positioning mechanism comprises a lifting screw rod, the lower end of the lifting screw rod is clamped with a positioning disc, and a filament thermocouple is fixedly mounted on the positioning disc; the thermocouple guide bracket comprises a sliding sleeve, the sliding sleeve is slidably mounted on the concentric sliding rod, a bearing disc concentric with the positioning disc is clamped below the sliding sleeve, and a filament thermocouple is slidably mounted on the bearing disc. The guide bracket is installed outside the thermocouple verification furnace, after the standard thermocouple and the thermocouple to be tested are fixed together through the positioning disc, the standard thermocouple and the thermocouple to be tested are guided to move horizontally towards the inside of the thermocouple verification furnace together through the bearing discs at multiple positions, at the moment, the filament thermocouple is evenly stressed, and the situation that the filament thermocouple is bent downwards and is not straight is avoided. Therefore, the filament thermocouple is accurately inserted into the detection cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of guide brackets, in particular to a guide bracket for improving the stability of a filament thermocouple during movement. Background Art

[0002] Thermocouples are commonly used temperature measuring components, primarily for measuring temperature. Long, thin thermocouples are referred to as filament thermocouples. To ensure the temperature measurement accuracy of filament thermocouples, they must be regularly tested using a thermocouple calibration furnace. When using a thermocouple calibration furnace for testing, a standard thermocouple is inserted into the furnace along with multiple thermocouples to be tested. After heating, the temperature difference between the thermocouple to be tested and the standard thermocouple is compared. If the temperature difference is too large, the tested thermocouple fails the test.

[0003] Before testing the filament thermocouple, it is necessary to insert the filament thermocouples one by one into the detection tube inside the thermocouple calibration furnace. Currently, this operation is mainly done manually by holding the filament thermocouple. Since the detection tube is located inside the thermocouple calibration furnace and is not visible, when the handheld filament thermocouple is inserted into the detection tube, the filament thermocouple is unevenly stressed and may bend downward or become crooked. This is not conducive to accurately inserting the thermocouple into the detection tube. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a guide bracket for improving the stability of a filament thermocouple during movement. The guide bracket is installed outside a thermocouple calibration furnace. After the standard thermocouple and the thermocouple to be measured are fixed together by a positioning disc, the standard thermocouple and the thermocouple to be measured are guided together to move horizontally into the thermocouple calibration furnace by multiple supporting discs. At this time, the filament thermocouple is subjected to uniform force and will not bend downward or become crooked, thereby allowing the filament thermocouple to be accurately inserted into the detection tube.

[0005] In order to solve the above technical problems, the technical solution of the utility model is achieved as follows:

[0006] A guide bracket for improving the stability of a filament thermocouple during movement, comprising a translation sliding mechanism, a thermocouple concentric positioning mechanism and a thermocouple guiding bracket; the translation sliding mechanism comprises a clamping seat installed above a thermocouple calibration furnace, one end of the clamping seat is connected to a fixed clamping jaw, and the end of the clamping seat away from the fixed clamping jaw is equipped with a tightening screw, and the end of the tightening screw is rotatably equipped with a movable clamping jaw, and the clamping seat is firmly fixed on the thermocouple calibration furnace under the joint clamping of the fixed clamping jaw and the movable clamping jaw; a linear slide that drives the filament thermocouple concentric positioning mechanism to translate is slidably installed above the clamping seat through a linear slide rail; the thermocouple concentric positioning mechanism comprises an annular slide rail fixed at the end of the linear slide rail, a lifting rotary seat is rotatably installed on the annular slide rail, and the inner side of the lifting rotary seat is equipped with a vertically arranged lifting screw rod through a thread. ; The lower end of the lifting screw is fixed with a base 1, and a positioning disc is detachably connected to the base 1; the positioning disc is provided with a plurality of positioning holes distributed in a circumferential array, and a filament thermocouple is fixedly installed in the positioning hole; the thermocouple guide bracket includes a sliding sleeve, which is slidably installed on a concentric sliding rod fixed on one side of the lifting screw, and the lower part of the sliding sleeve is fixedly connected to a base 2 through a connecting rod, and the connecting rod is located in an avoidance groove provided in the linear slide, and the base 2 is detachably connected to a supporting disc concentric with the positioning disc, and the supporting disc is provided with a plurality of guide holes distributed in a circumferential array, and a filament thermocouple is slidably installed in the guide hole; the filament thermocouple includes a standard thermocouple, and the rest are thermocouples to be tested. By moving the linear slide, all the filament thermocouples can be translated into the detection cylinder in the thermocouple calibration furnace.

[0007] Using the above solution, the guide bracket is installed outside the thermocouple calibration furnace. After the standard thermocouple and the thermocouple to be tested are fixed together by the positioning disc, the standard thermocouple and the thermocouple to be tested are guided together to move horizontally into the thermocouple calibration furnace through multiple supporting discs. At this time, the filament thermocouple is evenly stressed and will not bend or become crooked, thereby allowing the filament thermocouple to be accurately inserted into the test tube.

[0008] As a preferred embodiment of a guide bracket for improving the stability of the filament thermocouple during movement, the thickness of the supporting disc is smaller than the thickness of the positioning disc.

[0009] By adopting the above solution, in order to reduce the friction between the supporting disc and the filament thermocouple, the supporting disc is designed to be thinner, so that the contact area between the filament thermocouple and the supporting disc is small, and the friction will be smaller.

[0010] As a preferred embodiment of a guide bracket for improving the stability of a filament thermocouple during movement, a guide seat located below the linear slide is fixed on one side of the lifting screw, a guide shaft parallel to the lifting screw is fixed below the linear slide, and the guide seat is slidably mounted on the guide shaft.

[0011] In order to prevent the lifting screw from deflecting during lifting, the guide seat and the guide shaft cooperate with each other to guide the vertical lifting of the lifting screw.

[0012] As a preferred embodiment of a guide bracket for improving the stability of the filament thermocouple during movement, four handles distributed in a circumferential array are fixed to the side wall of the lifting rotary seat.

[0013] By adopting the above solution, in order to facilitate the rotation of the lifting seat, the lifting seat can be rotated more labor-savingly by rotating the handle.

[0014] As a preferred embodiment of a guide bracket for improving the stability of the filament thermocouple during movement, both the fixed clamping jaw and the movable clamping jaw are L-shaped clamping jaws.

[0015] With the above solution, in order to facilitate the cooperation between the clamping jaw and the thermocouple calibration furnace, the clamping jaw is designed as an L-shaped clamping jaw, which will be more reliable after clamping the thermocouple calibration furnace.

[0016] As a preferred embodiment of a guide bracket for improving the stability of a filament thermocouple during movement, a limiting ball is fixed to the end of a set screw, and the set screw is rotatably mounted in a movable clamp via the limiting ball.

[0017] With the above solution, in order to prevent the movable clamping jaw from rotating with the rotation of the set screw, a limit ball is connected between the two, which ensures the connection while preventing the movable clamping jaw from rotating with the rotation of the set screw.

[0018] As a preferred embodiment of a guide bracket for improving the stability of the filament thermocouple during movement, the linear slide is equipped with two fastening screws, the tops of which can contact the surface of the linear slide.

[0019] With the above solution, in order to ensure the fixation of the linear slide, two tightening screws are used to simultaneously fix the linear slide, thereby ensuring the stability of the linear slide after being fixed.

[0020] As a preferred embodiment of a guide bracket for improving the stability of a filament thermocouple during movement, the fitting relationship between the first holder and the positioning disc is an interference fit; the fitting relationship between the second holder and the supporting disc is an interference fit.

[0021] With the above solution, in order to ensure that the positioning disc and the supporting disc are more stable after assembly, an interference fit method is adopted, and the two are more reliable after assembly.

[0022] As a preferred embodiment of a guide bracket for improving the stability of a filament thermocouple during movement, the first holder and the positioning disc, as well as the second holder and the supporting disc are connected to each other through a pin, with both ends of the pin respectively inserted into a needle for blocking.

[0023] With the above solution, in order to further improve the fixing effect of the positioning disc and the supporting disc, latches and pins are used for assembly, thereby strengthening the fixing effect of the positioning disc and the supporting disc.

[0024] As a preferred embodiment of a guide bracket for improving the stability of a filament thermocouple during movement, a rubber sleeve is fixed in the positioning hole, and the fitting relationship between the filament thermocouple and the rubber sleeve is an interference fit; the fitting relationship between the filament thermocouple and the guide hole is a clearance fit.

[0025] In the above solution, in order to ensure that the filament thermocouple and the positioning hole are completely fixed, a rubber sleeve is used to strengthen the fixing effect between the two; and the filament thermocouple and the guide hole are clearance-matched to ensure that the filament thermocouple can slide freely in the guide hole.

[0026] After adopting the above technical solution, the beneficial effects of the utility model are:

[0027] 1. Install the guide bracket outside the thermocouple calibration furnace, fix the standard thermocouple and the thermocouple to be tested together through the positioning disc, and then guide the standard thermocouple and the thermocouple to be tested to move horizontally into the thermocouple calibration furnace through multiple supporting discs. At this time, the filament thermocouple is evenly stressed and will not bend or become crooked, so the filament thermocouple can be accurately inserted into the detection tube.

[0028] 2. In order to reduce the friction between the supporting disc and the filament thermocouple, the supporting disc is designed to be thinner. Then the contact area between the filament thermocouple and the supporting disc is small, and the friction will be smaller.

[0029] 3. In order to prevent the lifting screw from deflecting during lifting, a guide seat and a guide shaft cooperate with each other to guide the vertical lifting of the lifting screw;

[0030] 4. In order to facilitate the coordination between the clamp and the thermocouple calibration furnace, the clamp is designed as an L-shaped clamp, which will be more reliable when clamping the thermocouple calibration furnace;

[0031] 5. In order to prevent the movable jaw from rotating with the rotation of the set screw, a limit ball is connected between the two. While ensuring the connection, it can also prevent the movable jaw from rotating with the rotation of the set screw;

[0032] 6. In order to ensure that the positioning disc and the supporting disc are more stable after assembly, the interference fit method is adopted, and the two are more reliable after assembly;

[0033] 7. In order to further improve the fixing effect of the positioning disc and the supporting disc, pins and pins are used for assembly, thereby strengthening the fixing effect of the positioning disc and the supporting disc;

[0034] 8. In order to ensure that the filament thermocouple and the positioning hole are completely fixed, a rubber sleeve is used to strengthen the fixing effect between the two; and the gap between the filament thermocouple and the guide hole is matched to ensure that the filament thermocouple can slide freely in the guide hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0036] Figure 1 The three-dimensional structure of the utility model Figure 1 ;

[0037] Figure 2 The three-dimensional structure of the utility model Figure 2 ;

[0038] Figure 3 This is a three-dimensional structure installed outside the thermocouple calibration furnace. Figure 1 ;

[0039] Figure 4 This is a three-dimensional structure installed outside the thermocouple calibration furnace. Figure 2 ;

[0040] Figure 5 For display Figure 4 A three-dimensional structural diagram of the interior;

[0041] Figure 6 for Figure 1 Three-dimensional structure of the translation sliding mechanism Figure 1 ;

[0042] Figure 7 for Figure 1 Three-dimensional structure of the translation sliding mechanism Figure 2 ;

[0043] Figure 8 For display Figure 6 A three-dimensional structural diagram of the interior of the set screw;

[0044] Figure 9 for Figure 1 A three-dimensional structural diagram of the thermocouple concentric positioning mechanism and the thermocouple guide bracket;

[0045] Figure 10 for Figure 9 Exploded view of the thermocouple concentric positioning mechanism;

[0046] Figure 11for Figure 9 Exploded view of the thermocouple guide bracket.

[0047] Markings in the figure: 1-translational sliding mechanism; 101-clamping seat; 102-fixed clamping jaw; 103-fastening screw; 104-movable clamping jaw; 105-linear slide; 106-linear slide; 107-limiting ball; 108-fastening top screw; 109-avoidance groove, 2-thermocouple concentric positioning mechanism; 201-annular slide; 202-lifting rotary seat; 203-lifting screw; 204- Card seat one; 205-positioning disc; 206-positioning hole; 207-concentric slide rod; 208-guide seat; 209-guide shaft; 210-rubber sleeve; 3-thermocouple guide bracket; 301-sliding sleeve; 302-connecting rod; 303-card seat two; 304-supporting disc; 305-guide hole; 4-thermocouple calibration furnace; 5-filament thermocouple; 6-detection tube; 7-latch; 8-needle. DETAILED DESCRIPTION

[0048] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0049] like Figures 1 to 11As shown, a guide bracket for improving the stability of a filament thermocouple when it moves is used to guide a thin and long filament thermocouple 5, which includes a translation sliding mechanism 1, a thermocouple concentric positioning mechanism 2 and a thermocouple guide bracket 3; the translation sliding mechanism 1 includes a clamping seat 101 installed above a thermocouple calibration furnace 4, one end of the clamping seat 101 is connected to a fixed clamping jaw 102, and the end of the clamping seat 101 away from the fixed clamping jaw 102 is equipped with a tightening screw 103, and the end of the tightening screw 103 is rotatably mounted with a movable clamping jaw 104, the clamping base 101 is firmly fixed on the thermocouple calibration furnace 4 under the joint clamping of the fixed clamping jaw 102 and the movable clamping jaw 104; a linear slide 106 for driving the thermocouple concentric positioning mechanism 2 to translate is slidably installed above the clamping base 101 through a linear slide 105; the thermocouple concentric positioning mechanism 2 includes an annular slide 201 fixed at the end of the linear slide 106, and a lifting rotary seat 202 is rotatably installed on the annular slide 201, and the inner side of the lifting rotary seat 202 is provided with a vertically arranged lifting screw through a thread. The lower end of the lifting screw 203 is fixed with a card seat 204, and the card seat 204 is detachably connected with a positioning disc 205; the positioning disc 205 is provided with a plurality of positioning holes 206 distributed in a circumferential array, and a filament thermocouple 5 is fixedly installed in the positioning hole 206; the thermocouple guide bracket 3 includes a sliding sleeve 301, which is slidably mounted on a concentric sliding rod 207 fixed to one side of the lifting screw 203, and the lower part of the sliding sleeve 301 is fixedly connected to the card seat 2 303 through a connecting rod 302. The connecting rod 302 is located in the avoidance groove provided in the linear slide 106, and the supporting disc 304 concentric with the positioning disc 205 is detachably connected in the second card seat 303. The supporting disc 304 is penetrated by a plurality of guide holes 305 distributed in a circumferential array, and the filament thermocouple 5 is slidably installed in the guide hole 305; the filament thermocouple 5 includes a standard thermocouple, and the rest are thermocouples to be tested. By moving the linear slide 106, all the filament thermocouples 5 can be translated into the detection cylinder 6 in the thermocouple calibration furnace 4. The guide bracket is installed outside the thermocouple calibration furnace 4. After the standard thermocouple and the thermocouple to be tested are fixed together by the positioning disc 205, the standard thermocouple and the thermocouple to be tested are guided to move horizontally into the thermocouple calibration furnace 4 through multiple supporting discs 304. At this time, the filament thermocouple 5 is evenly stressed and will not bend or become crooked, so that the filament thermocouple 5 can be accurately inserted into the detection tube 6.

[0050] like Figure 9 As shown, the thickness of the supporting disc 304 is less than that of the positioning disc 205. In order to reduce the friction between the supporting disc 304 and the filament thermocouple 5, the supporting disc 304 is designed to be thinner, so that the contact area between the filament thermocouple 5 and the supporting disc 304 is small, and the friction will be smaller.

[0051] like Figure 10As shown, a guide seat 208 is fixed to one side of the lifting screw 203 and is located below the linear slide 106. A guide shaft 209 is fixed below the linear slide 106 and is parallel to the lifting screw 203. The guide seat 208 is slidably mounted on the guide shaft 209. To prevent the lifting screw 203 from deflecting during lifting, the guide seat 208 and the guide shaft 209 cooperate to guide the vertical movement of the lifting screw 203.

[0052] like Figure 10 As shown, a rotating handle distributed in a circumferential array at four points is fixed on the sidewall of the lifting seat 202. In order to facilitate the rotation of the lifting seat 202, by rotating the rotating handle, more effort can be saved when rotating the lifting seat 202.

[0053] like Figures 6 and 7 As shown, both the fixed clamping jaw 102 and the movable clamping jaw 104 are L-shaped clamping jaws. In order to facilitate the cooperation between the clamping jaw and the thermocouple calibration furnace 4, the clamping jaw is designed to be L-shaped, which will be more reliable after clamping the thermocouple calibration furnace 4.

[0054] like Figure 8 As shown, a limiting ball 107 is fixed to the end of the set screw 103, and the set screw 103 is rotatably mounted in the movable clamping jaw 104 via the limiting ball 107. In order to prevent the movable clamping jaw 104 from rotating with the rotation of the set screw 103, the limiting ball 107 is connected between the two. While ensuring the connection, it can also prevent the movable clamping jaw from rotating with the rotation of the set screw 103.

[0055] like Figure 8 As shown, the linear slide 106 is equipped with two fastening screws 108, and the top of the fastening screws 108 can contact the surface of the linear slide 105. In order to ensure the fixation of the linear slide 106, two fastening screws 108 are used to fix the linear slide 106 at the same time, thereby ensuring the stability of the linear slide 106 after being fixed.

[0056] The fit between the first clamping seat 204 and the positioning disc 205 is an interference fit, and the fit between the second clamping seat 303 and the supporting disc 304 is an interference fit. In order to ensure that the positioning disc 205 and the supporting disc 304 are more stable after assembly, the interference fit method is adopted, which makes the two more reliable after assembly.

[0057] like Figures 10 and 11 As shown, the first clamping seat 204 and the positioning disc 205, as well as the second clamping seat 303 and the supporting disc 304, are connected by a latch 7, with both ends of the latch 7 inserted into an annular pin 8 for blocking. To further enhance the fixing effect of the positioning disc 205 and the supporting disc 304, the latch 7 and the annular pin 8 are assembled, thereby strengthening the fixing effect of the positioning disc 205 and the supporting disc 304.

[0058] like Figures 10 and 11 As shown, a rubber sleeve 210 is fixed within the positioning hole 206. The fit between the filament thermocouple 5 and the rubber sleeve 210 is an interference fit, while the fit between the filament thermocouple 5 and the guide hole 305 is a clearance fit. To ensure that the filament thermocouple 5 is completely fixed to the positioning hole 206, the rubber sleeve 210 is used to strengthen the fixing effect between the two. The filament thermocouple 5 and the guide hole 305 have a clearance fit, ensuring that the filament thermocouple 5 can slide freely within the guide hole 305.

[0059] The working principle of this utility model:

[0060] In order to prevent the filament thermocouple 5 from sagging and deformation, the thermocouple concentric positioning mechanism and the thermocouple guide bracket 3 work together during detection.

[0061] First, the translation and sliding mechanism 1 is mounted and fixed on the thermocouple calibration furnace 4. The clamping base 101 is placed above the thermocouple calibration furnace 4, and the fixing screw 103 is rotated to push the movable clamping jaw 104 to move. Under the joint clamping of the fixed clamping jaw 102 and the movable clamping jaw 104, the clamping base 101 is firmly fixed on the thermocouple calibration furnace 4.

[0062] Then, adjust the vertical concentricity of the positioning disc 205 and the detection cylinder 6. By rotating the lifting and lowering mechanism, the lifting screw 203 and all the connecting rods 302 are vertically lifted and lowered together by the screw thread until the positioning disc 205 and the supporting disc 304 are concentric with the detection cylinder 6.

[0063] Finally, the filament thermocouple 5 is fixed. A standard thermocouple is fixed to the positioning hole 206, and the remaining positioning holes 206 are fixed to the thermocouples to be tested and installed together on the positioning disk 205. At the same time, the standard thermocouple and the thermocouple to be tested are introduced into the guide hole 305 together, and by reasonably allocating the spacing between two adjacent supporting disks 304, all supporting disks 304 can evenly support and guide the filament thermocouple 5. At this time, the filament thermocouple 5 is evenly stressed and will not bend or become crooked. By moving the linear slide 106, all the filament thermocouples 5 can be translated into the detection tube 6 in the thermocouple calibration furnace 4, so that the filament thermocouple 5 can be accurately inserted into the detection tube 6. After heating, the temperature difference between the thermocouple to be tested and the standard thermocouple is compared. If the temperature difference is too large, the measured filament thermocouple 5 is unqualified.

[0064] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A guide bracket for improving the stability of a filament thermocouple during movement, comprising a translation sliding mechanism (1), a thermocouple concentric positioning mechanism (2) and a thermocouple guide bracket (3); The translation sliding mechanism (1) comprises a clamping seat (101) installed above the thermocouple calibration furnace (4); one end of the clamping seat (101) is connected to a fixed clamping jaw (102); an end of the clamping seat (101) away from the fixed clamping jaw (102) is matched with a fixing screw (103); the end of the fixing screw (103) is rotatably installed with a movable clamping jaw (104); the clamping seat (101) is firmly fixed on the thermocouple calibration furnace (4) under the joint clamping of the fixed clamping jaw (102) and the movable clamping jaw (104); a linear slide (106) for driving the thermocouple concentric positioning mechanism (2) to translate is slidably installed above the clamping seat (101) via a linear slide rail (105); The thermocouple concentric positioning mechanism (2) comprises an annular slide rail (201) fixed at the end of a linear slide (106); a lifting seat (202) is rotatably mounted on the annular slide rail (201); a lifting screw rod (203) is vertically arranged on the inner side of the lifting screw rod (202) through thread engagement; a clamping seat (204) is fixed at the lower end of the lifting screw rod (203); a positioning disc (205) is detachably clamped in the clamping seat (204); a plurality of positioning holes (206) distributed in a circumferential array are formed through the positioning disc (205); a filament thermocouple (5) is fixedly mounted in the positioning hole (206); Its characteristics are: The thermocouple guide bracket (3) includes a sleeve (301), the sleeve (301) is slidably mounted on a concentric slide rod (207) fixed to one side of a lifting screw rod (203), the sleeve (301) is fixedly connected to a second card seat (303) via a connecting rod (302) below, the connecting rod (302) is located in an avoidance groove provided in a linear slide (106), a supporting disc (304) concentric with the positioning disc (205) is detachably clamped in the second card seat (303), a plurality of guide holes (305) distributed in a circumferential array are provided through the supporting disc (304), and a filament thermocouple (5) is slidably mounted in the guide hole (305); The filament thermocouple (5) includes a standard thermocouple, and the rest are thermocouples to be tested. By moving the linear slide (106), all the filament thermocouples (5) can be translated into a detection cylinder (6) in a thermocouple calibration furnace (4).

2. The guide bracket for improving the stability of the filament thermocouple during movement according to claim 1, characterized in that: The thickness of the supporting disc (304) is smaller than the thickness of the positioning disc (205).

3. The guide bracket for improving the stability of the filament thermocouple during movement according to claim 1, characterized in that: A guide seat (208) located below the linear slide (106) is fixed on one side of the lifting screw (203), and a guide shaft (209) parallel to the lifting screw (203) is fixed below the linear slide (106), and the guide seat (208) is slidably mounted on the guide shaft (209).

4. The guide bracket for improving the stability of the filament thermocouple during movement according to claim 3, characterized in that: Four rotating handles distributed in a circumferential array are fixed on the side wall of the lifting rotary seat (202).

5. The guide bracket for improving the stability of the filament thermocouple during movement according to claim 1, characterized in that: The fixed clamping jaw (102) and the movable clamping jaw (104) are both L-shaped clamping jaws.

6. The guide bracket for improving the stability of the filament thermocouple during movement according to claim 5, characterized in that: A limiting ball (107) is fixed to the end of the tightening screw (103), and the tightening screw (103) is rotatably installed in the movable clamping jaw (104) through the limiting ball (107).

7. The guide bracket for improving the stability of the filament thermocouple during movement according to claim 6, characterized in that: The linear slide (106) is equipped with two fastening screws (108), and the tops of the fastening screws (108) can contact the surface of the linear slide rail (105).

8. The guide bracket for improving the stability of a filament thermocouple during movement according to any one of claims 1 to 7, characterized in that: The matching relationship between the first clamping seat (204) and the positioning disc (205) is an interference fit; the matching relationship between the second clamping seat (303) and the supporting disc (304) is an interference fit.

9. The guide bracket for improving the stability of the filament thermocouple during movement according to claim 8, characterized in that: The first card seat (204) and the positioning disc (205), and the second card seat (303) and the supporting disc (304) are connected to each other via a latch (7), and both ends of the latch (7) are respectively inserted into the stop pin (8) for blocking.

10. The guide bracket for improving the stability of the filament thermocouple during movement according to claim 9, characterized in that: A rubber sleeve (210) is fixed in the positioning hole (206), and the fitting relationship between the filament thermocouple (5) and the rubber sleeve (210) is interference fitting; the fitting relationship between the filament thermocouple (5) and the guide hole (305) is clearance fitting.

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