Silicon nitride thermocouple protection tube

Abstract

The utility model relates to the technical field of thermocouples, and discloses a silicon nitride thermocouple protection tube which comprises a supporting frame and a protection tube body, one end of the supporting frame is provided with an adjustable fixing assembly, the adjustable fixing assembly comprises a motor, the motor is fixedly provided with a first belt wheel through a supporting rod, and the first belt wheel is provided with a second belt wheel. The first belt wheel is in transmission connection with a second belt wheel through a belt, the motor is started to enable the supporting rod to drive the first belt wheel to rotate, so that the belt rotates, the first sliding block on the belt can move up and down, and the positions of the supporting block and a connected part are changed; the position of the thermocouple protection tube can be adjusted to obtain more accurate temperature data, meanwhile, the clamping block, the threaded rod and the clamping plate are matched with one another, the protection tube body can be fixed, the stability in the adjusting process is guaranteed, the assembly enables the protection tube body to adapt to different measurement environments, and more accurate measurement data can be obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of thermocouples, and particularly relates to a silicon nitride thermocouple protection tube. Background Art

[0002] In industrial production and scientific research, the accurate measurement of temperature is crucial. As a commonly used temperature measurement element, the measurement accuracy and stability of a thermocouple are often affected by the protection tube.

[0003] The applicant found through retrieval that the Chinese patent discloses "a silicon nitride thermocouple protection tube", and its publication (announcement) number is "CN215639829U". This patent mainly has a ring groove opened on the lower wall surface of the outer wall of the thermocouple protection tube, a lengthening tube is inserted and slid up and down in the ring groove, threaded grooves are opened on the left and right side wall surfaces of the thermocouple protection tube, the threaded grooves are connected to the ring groove, and a fixing structure is provided between the lengthening tube and the thermocouple protection tube, and the length of the thermocouple protection tube can be adjusted according to different types of thermocouples. However, it is difficult to flexibly adjust the position and angle according to the actual measurement requirements, which may lead to inaccurate measurement or inability to meet the requirements of specific measurement points in a complex and changeable measurement environment. Therefore, we propose a silicon nitride thermocouple protection tube. Content of the Utility Model

[0004] The purpose of the utility model is to provide a silicon nitride thermocouple protection tube to solve the problems proposed in the above background art that it is difficult to flexibly adjust the position and angle according to the actual measurement requirements, which may lead to inaccurate measurement or inability to meet the requirements of specific measurement points in a complex and changeable measurement environment.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a silicon nitride thermocouple protection tube, including a support frame and a protection tube body. One end of the support frame is provided with an adjustable fixing component. The adjustable fixing component includes a motor. The motor is fixedly installed with a first pulley through a support rod. The first pulley is connected to a second pulley through a belt drive. The inner wall of the second pulley is rotatably connected to a fixing rod. The outer surface of the belt is fixedly installed with a first slider. The front side of the support frame is fixedly installed with a fixing plate. The inner wall of the first slider is slidably connected to the outer surface of the fixing plate. The front side of the first slider is fixedly installed with a support block. The support block is connected to a connecting plate through a second slider. The top of the connecting plate is fixedly installed with a clamping block. The clamping block is connected to a clamping plate through a threaded rod.

[0006] As a preferred solution, the protection tube body is movably connected to the inner wall of the clamping block.

[0007] As a preferred solution, the motor is fixedly connected to the rear side of the support frame. One end of the support rod is fixedly connected to the output end of the motor. The support rod penetrates through the front side of the support frame, and the end of the support rod away from the motor is fixedly connected to the first pulley. The belt is drivingly connected to the circumferential surface of the first pulley. The end of the belt away from the first pulley is drivingly connected to the second pulley. The end of the fixed rod away from the second pulley is fixedly connected to the support frame.

[0008] As a preferred solution, a chute is provided at the top of the support block, and the second slider is slidably connected to the inner wall of the chute. The second slider is fixedly connected to the bottom of the connecting plate. Threaded holes are provided on the circumferential surface of the clamping block, and the threaded rod is threadedly connected to the inner wall of the threaded hole. The clamping plate is movably connected to the inside of the clamping block.

[0009] As a preferred solution, an adjustable component is provided on the circumferential surface of the protection tube body. The adjustable component includes a connecting tube. A fixed block is fixedly installed at one end of the protection tube body close to the connecting tube. The fixed block is connected to a rotating block through a positioning rod. A pressing block is fixedly installed on the inner wall of the fixed block, and the rotating block abuts against the pressing block.

[0010] As a preferred solution, the connecting tube is slidably connected to the inner wall of the protection tube body. The front and rear sides of the positioning rod are fixedly connected to the outer surface of the fixed block, and the rotating block is rotatably connected to the circumferential surface of the positioning rod.

[0011] The technical effects and advantages of the present utility model are as follows:

[0012] 1. By providing the adjustable fixing component, starting the motor causes the support rod to drive the first pulley to rotate, thereby causing the belt to rotate, enabling the first slider on the belt to move up and down, changing the position of the support block and the connected components. When the temperature distribution in the measurement environment is uneven, the position of the thermocouple protection tube can be adjusted to obtain more accurate temperature data. At the same time, the clamping block, threaded rod, and clamping plate cooperate with each other to fix the protection tube body, ensuring stability during the adjustment process. This component enables the protection tube body to adapt to different measurement environments and can obtain more accurate measurement data.

[0013] 2. By providing the adjustable component, through the cooperation of the fixed block, rotating block, pressing block, and the connected components, the connecting tube can slide inside the protection tube body, enabling the length of the protection tube body to be adjusted according to actual needs, and being able to better adapt to different measurement environments. This component can make the protection tube body flexibly adjust its length, adapt to thermocouples of different sizes, has strong adaptability, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 Schematic diagram of the belt structure of the present utility model;

[0016] Figure 3 Schematic diagram of the adjustable fixing component structure of the present utility model;

[0017] Figure 4 Schematic diagram of the clamping block structure of the present utility model;

[0018] Figure 5 Schematic diagram of the adjustable component structure of the present utility model;

[0019] Figure 6 Schematic diagram of the fixing block structure of the present utility model;

[0020] Figure 7 Schematic diagram of the sectional structure of the present utility model.

[0021] In the figure: 1, support frame; 2, adjustable fixing component; 201, motor; 202, support rod; 203, first pulley; 204, belt; 205, second pulley; 206, fixing rod; 207, first slider; 208, fixing plate; 209, support block; 210, second slider; 211, connecting plate; 212, clamping block; 213, threaded rod; 214, clamping plate; 3, adjustable component; 301, connecting pipe; 302, fixing block; 303, positioning rod; 304, rotating block; 305, pressing block; 4, protection pipe body. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment 1:

[0024] Please refer to the attached Figure 1 - attached Figure 5, a silicon nitride thermocouple protection tube, comprising a support frame 1 and a protection tube body 4. One end of the support frame 1 is provided with an adjustable fixing assembly 2. The adjustable fixing assembly 2 includes a motor 201. The motor 201 is fixedly installed with a first pulley 203 through a support rod 202. The first pulley 203 is connected to a second pulley 205 through a belt 204. The inner wall of the second pulley 205 is rotatably connected to a fixing rod 206. A first slider 207 is fixedly installed on the outer surface of the belt 204. A fixing plate 208 is fixedly installed on the front side of the support frame 1. The inner wall of the first slider 207 is slidably connected to the outer surface of the fixing plate 208. A support block 209 is fixedly installed on the front side of the first slider 207. The support block 209 is connected to a connecting plate 211 through a second slider 210. A clamping block 212 is fixedly installed on the top of the connecting plate 211. The clamping block 212 is connected to a clamping plate 214 through a threaded rod 213. The protection tube body 4 is movably connected to the inner wall of the clamping block 212. The motor 201 is fixedly connected to the rear side of the support frame 1. One end of the support rod 202 is fixedly connected to the output end of the motor 201. The support rod 202 penetrates through the front side of the support frame 1, and the end of the support rod 202 away from the motor 201 is fixedly connected to the first pulley 203. The belt 204 is connected to the circumferential surface of the first pulley 203. The end of the belt 204 away from the first pulley 203 is connected to the second pulley 205. The end of the fixing rod 206 away from the second pulley 205 is fixedly connected to the support frame 1. A chute is provided on the top of the support block 209, and the second slider 210 is slidably connected to the inner wall of the chute. The second slider 210 is fixedly connected to the bottom of the connecting plate 211. A threaded hole is provided on the circumferential surface of the clamping block 212, and the threaded rod 213 is threadedly connected to the inner wall of the threaded hole. The clamping plate is movably connected to the inside of the clamping block.

[0025] There are two groups of connecting plates 211, threaded rods 213 and clamping plates 214 on the top of the support block 209, which enhances the stability of clamping the protection tube body 4. The two groups of clamping structures can better adapt to the protection tube body 4 with different sizes or shapes. A threaded groove adapted to the threaded rod 213 is provided on the top of the clamping block 212, and the threaded rod 213 is threadedly connected to the threaded groove, which is convenient for disassembling and installing the clamping block 212.

[0026] Specifically, the motor 201 drives the support rod 202 to drive the first pulley 203 to rotate, so that the belt 204 rotates, and the first slider 207 on the belt 204 can move up and down, changing the positions of the support block 209 and the connected components. When the temperature distribution in the measurement environment is uneven, the position of the thermocouple protection tube can be adjusted to obtain more accurate temperature data. At the same time, the clamping block 212, the threaded rod 213 and the clamping plate 214 cooperate with each other to fix the protection tube body 4, ensuring the stability during the adjustment process. This assembly enables the protection tube body 4 to adapt to different measurement environments and can obtain more accurate measurement data.

[0027] Example Two:

[0028] Please refer to the attached Figure 1 attachment Figure 6 -attachment Figure 7 On the basis of Example One, it is further obtained that an adjustable component 3 is provided on the circumferential surface of the protection tube body 4. The adjustable component 3 includes a connecting tube 301. One end of the protection tube body 4 close to the connecting tube 301 is fixedly installed with a fixed block 302. The fixed block 302 is connected with a rotating block 304 through a positioning rod 303. The inner wall of the fixed block 302 is fixedly installed with a pressing block 305. The rotating block 304 and the pressing block 305 are in contact with each other. The connecting tube 301 is slidably connected to the inner wall of the protection tube body 4. Both the front and rear sides of the positioning rod 303 are fixedly connected to the outer surface of the fixed block 302. The rotating block 304 is rotatably connected to the circumferential surface of the positioning rod 303.

[0029] A groove is formed on the circumferential surface of the connecting tube 301 and the groove is adapted to the pressing block 305. When the position of the connecting tube 301 needs to be adjusted, the cooperation between the groove and the pressing block 305 can make each adjustment more accurate.

[0030] Specifically, through the mutual cooperation of the fixed block 302, the rotating block 304, the pressing block 305 and the connected components, the connecting tube 301 can slide inside the protection tube body 4, so that the length of the protection tube body 4 can be adjusted according to actual needs, and it can better adapt to different measurement environments. This component can make the protection tube body 4 flexibly adjust its length, can adapt to thermocouples of different sizes, has strong adaptability, and improves work efficiency.

[0031] The working principle of this utility model: This utility model is a silicon nitride thermocouple protection tube. First, in the adjustable component 3, the rotating block 304 is rotated through the positioning rod 303 to make the pressing block 305 away from the groove of the connecting tube 301, and the connecting tube 301 slides out from the inside of the protection tube body 4. Then, the rotating block 304 is rotated to make the pressing block 305 closely fit with the groove of the connecting tube 301, so as to adjust the length of the protection tube body 4. In the adjustable fixing component 2, the adjusted protection tube body 4 is placed in the clamping block 212 and fixed by the threaded rod 213 and the clamping plate 214. The motor 201 is started to drive the support rod 202 to rotate, so that the first belt pulley 203 rotates. The first belt pulley 203 drives the second belt pulley 205 to rotate through the belt 204, so that the first slider 207 on the belt 204 slides along the fixing plate 208, and the support block 209 in front of the first slider 207 moves, so as to realize the position adjustment of the protection tube body 4.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A silicon nitride thermocouple protection tube, comprising a support frame (1) and a protection tube body (4), characterized in that: One end of the support frame (1) is provided with an adjustable fixing component (2). The adjustable fixing component (2) includes a motor (201). The motor (201) is fixedly installed with a first pulley (203) through a support rod (202). The first pulley (203) is connected to a second pulley (205) through a belt (204). The inner wall of the second pulley (205) is rotatably connected to a fixing rod (206). A first slider (207) is fixedly installed on the outer surface of the belt (204). A fixing plate (208) is fixedly installed on the front side of the support frame (1). The inner wall of the first slider (207) is slidably connected to the outer surface of the fixing plate (208). A support block (209) is fixedly installed on the front side of the first slider (207). The support block (209) is connected to a connecting plate (211) through a second slider (210). A clamping block (212) is fixedly installed on the top of the connecting plate (211). The clamping block (212) is connected to a clamping plate (214) through a threaded rod (213).

2. The silicon nitride thermocouple protection tube according to claim 1, characterized in that: The protection tube body (4) is movably connected to the inner wall of the clamping block (212).

3. The silicon nitride thermocouple protection tube according to claim 2, characterized in that: The motor (201) is fixedly connected to the rear side of the support frame (1). One end of the support rod (202) is fixedly connected to the output end of the motor (201). The support rod (202) penetrates through the front side of the support frame (1), and the end of the support rod (202) far from the motor (201) is fixedly connected to the first pulley (203). The belt (204) is connected to the circumferential surface of the first pulley (203) through transmission. The end of the belt (204) far from the first pulley (203) is connected to the second pulley (205) through transmission. The end of the fixing rod (206) far from the second pulley (205) is fixedly connected to the support frame (1).

4. The silicon nitride thermocouple protection tube according to claim 3, characterized in that: A chute is formed at the top of the support block (209), and the second slider (210) is slidably connected to the inner wall of the chute. The second slider (210) is fixedly connected to the bottom of the connecting plate (211). Threaded holes are formed on the circumferential surface of the clamping block (212), and the threaded rod (213) is threadedly connected to the inner wall of the threaded holes. The clamping plate (214) is movably connected to the inside of the clamping block (212).

5. A silicon nitride thermocouple protection tube according to claim 4, characterized in that: An adjustable component (3) is provided on the circumferential surface of the protection tube body (4). The adjustable component (3) includes a connecting tube (301). A fixing block (302) is fixedly installed at one end of the protection tube body (4) close to the connecting tube (301). The fixing block (302) is connected to a rotating block (304) through a positioning rod (303). A pressing block (305) is fixedly installed on the inner wall of the fixing block (302). The rotating block (304) abuts against the pressing block (305).

6. The silicon nitride thermocouple protection tube according to claim 5, wherein: The connecting tube (301) is slidably connected to the inner wall of the protection tube body (4). The front and rear sides of the positioning rod (303) are fixedly connected to the outer surface of the fixing block (302). The rotating block (304) is rotatably connected to the circumferential surface of the positioning rod (303).

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