A pressure-resistant and corrosion-resistant thermocouple

Abstract

The present invention relates to the field of thermocouples, and specifically to a pressure-resistant and corrosion-resistant thermocouple, comprising a thermocouple body, a protective sleeve provided on the thermocouple body, an industrial-type limiting frame provided on the protective sleeve, a first curved plate provided at the front end of the middle portion of the industrial-type limiting frame, a second curved plate provided at the rear end of the middle portion of the industrial-type limiting frame, a limiting groove provided on the front side of the first curved plate and the rear side of the second curved plate, a limiting block provided in the limiting groove, a threaded rod fixed at the other end of the limiting block, a turntable fixed at the other end of the threaded rod, a splint provided on the threaded rod, a threaded through hole provided on the splint, a limiting hole provided on the left and right directions of the splint, and a fixing rod provided on the left and right directions of the front end of the first curved plate and the rear end of the second curved plate. The present invention realizes the movement of the splint through the structures of the splint, the threaded rod, the threaded through hole, the fixing rod, the limiting hole, the limiting block, the limiting groove and the turntable, thereby achieving the fixation of the device.

Description

Technical Field

[0001] The present invention relates to the field of thermocouples, and in particular to a pressure-resistant and corrosion-resistant thermocouple. Background Art

[0002] Thermocouples are commonly used temperature measuring elements in temperature measuring instruments. They directly measure temperature and convert the temperature signal into a thermoelectric potential signal, which is then converted into the temperature of the measured medium through an electrical instrument (secondary instrument). The appearance of various thermocouples often varies greatly depending on the needs, but their basic structure is roughly the same, usually consisting of a thermode, an insulating protective tube, and a junction box.

[0003] Thermocouples are widely used in the field of temperature measurement. However, existing thermocouples are not securely fixed during installation, resulting in wobbling after installation, which fails to meet the required fixation during actual use. Furthermore, disassembly is cumbersome, making repair and maintenance inconvenient. Therefore, those skilled in the art have provided a pressure-resistant and corrosion-resistant thermocouple to address the problems raised in the background art. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a pressure-resistant and corrosion-resistant thermocouple, including a thermocouple body, characterized in that a protective sleeve is provided on the thermocouple body, and an industrial limit frame is provided on the protective sleeve, a first curved plate is provided at the front end of the middle part of the industrial limit frame, and a second curved plate is provided at the rear end of the middle part of the industrial limit frame, a limiting groove is provided on the front side of the first curved plate and the rear side of the second curved plate, a limiting block is provided in the limiting groove, the limiting block is rotatably connected to the limiting groove, the other end of the limiting block is fixed with a threaded rod, the other end of the threaded rod is fixed with a turntable, the threaded rod is provided with a splint, the splint is provided with a threaded through hole, the threaded rod passes through the threaded through hole and is threadedly connected to the threaded through hole, limiting holes are provided in the left and right directions of the splint, the front end of the first curved plate and the rear end of the second curved plate are provided with fixing rods in the left and right directions, the fixing rods pass through the limiting hole and are slidably connected to the limiting hole, and the other end of the fixing rod is fixed with a stopper.

[0005] Preferably, the outer surface of the protective sleeve is provided with an anti-corrosion lining made of polytetrafluoroethylene. Polytetrafluoroethylene has the characteristics of being resistant to acid, alkali and various organic solvents, thereby playing an anti-corrosion role and increasing the service life of the thermocouple body.

[0006] Preferably, the protective sleeve is made of a rod through integral punching, and has high strength and pressure resistance, thereby protecting the thermocouple body from the influence of the high-pressure environment on site and playing a role in high-pressure resistance, further improving the service life of the thermocouple body.

[0007] Preferably, a threaded groove is provided at the bottom of the protective sleeve, a tube cover is provided at the lower end of the protective sleeve, and a fixing cylinder is fixed at the upper end of the tube cover.

[0008] Preferably, a threaded ring is provided on the outer side of the fixing tube, and the fixing tube is fixedly connected to the protective sleeve through a threaded connection between the threaded ring and the thread groove.

[0009] Preferably, the I-type limiting frame is slidably connected to the protective sleeve, and cross bars are fixed to the left front end and the right rear end of the I-type limiting frame in the upper and lower directions, and the other ends of the upper and lower cross bars are fixed to the same slide cylinder.

[0010] Preferably, a gradually narrowing groove is provided in the slide cylinder, and a slide rod is fixed to the left front end and the right rear end of the protective sleeve, and the slide rod passes through the slide cylinder.

[0011] Preferably, connecting rods are fixed to both left and right ends of the first arc-shaped plate, fixing blocks are fixed to the other ends of the connecting rods, and a slot is provided on one side of the fixing blocks.

[0012] Preferably, the other end of the slot is provided with a through hole, which passes through the fixing block, and L-shaped rods are fixed in the upper and lower directions of the front ends of the left and right sides of the second arc-shaped plate, and the same telescopic rod is fixed between the upper and lower L-shaped rods.

[0013] Preferably, the telescopic rods are each provided with a return spring, one end of the telescopic rods is fixed with a clamping block, and the clamping block is located in the clamping groove to achieve a fixed connection between the first arc plate and the second arc plate.

[0014] Technical effects and advantages of the present invention:

[0015] When in use, the present invention protects the bottom of the thermocouple body through structures such as threaded grooves, tube covers, fixing cylinders and threaded rings, effectively extending the service life of the thermocouple body, and realizes free loading and unloading between the first curved plate and the second curved plate through structures such as telescopic rods, reset springs, clamping blocks, clamping slots, through holes and fixing blocks, and realizes the movement of the clamping plate to fix the device through structures such as splints, threaded rods, threaded through holes, fixing rods, limiting holes, limiting blocks, limiting slots and turntables. At the same time, the height adjustment of the industrial limit frame is realized through structures such as slide cylinders, slide rods, gradually narrowing grooves and cross bars, thereby realizing the height adjustment of the splint, which increases the scope of application and has high use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a pressure-resistant and corrosion-resistant thermocouple provided in an embodiment of the present application;

[0017] Figure 2 This is a front view of a pressure-resistant and corrosion-resistant thermocouple provided in an embodiment of the present application;

[0018] Figure 3 This is a right side view of a pressure-resistant and corrosion-resistant thermocouple provided in an embodiment of the present application;

[0019] Figure 4 This is a structural diagram of a pressure-resistant and corrosion-resistant thermocouple tube cover provided in an embodiment of the present application;

[0020] Figure 5 This is a schematic structural diagram of a protective sleeve in a pressure-resistant and corrosion-resistant thermocouple provided in an embodiment of the present application;

[0021] Figure 6 This is a schematic structural diagram of a slide in a pressure-resistant and corrosion-resistant thermocouple provided in an embodiment of the present application;

[0022] Figure 7 This is a schematic structural diagram of a clamping plate in a pressure-resistant and corrosion-resistant thermocouple provided in an embodiment of the present application;

[0023] Figure 8 This is a schematic structural diagram of a pressure-resistant and corrosion-resistant thermocouple turntable provided in an embodiment of the present application;

[0024] Figure 9 This is a schematic structural diagram of a first curved plate in a pressure-resistant and corrosion-resistant thermocouple provided in an embodiment of the present application;

[0025] Figure 10 This is a schematic structural diagram of the second curved plate in a pressure-resistant and corrosion-resistant thermocouple provided in an embodiment of the present application;

[0026] In the figure: 1-thermocouple body; 2-protective sleeve; 3-tube cover; 4-type limit frame; 5-slide cylinder;

[0027] 6- clamping plate; 7- fixed rod; 8- stopper; 9- turntable; 10- slide rod;

[0028] 11-threaded rod; 12-threaded ring; 13-threaded groove; 14-narrowing groove; 15-threaded through hole;

[0029] 16-limiting block; 17-limiting groove; 18-first arc plate; 19-second arc plate; 20-connecting rod;

[0030] 21-fixed block; 22-slot; 23-through hole; 24-L-shaped rod; 25-telescopic rod;

[0031] 26-reset spring; 27-block; 28-limiting hole; 29-fixing cylinder; 30-cross bar. DETAILED DESCRIPTION

[0032] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described to better illustrate the principles of the invention and its practical application, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for specific applications.

[0033] Example 1

[0034] See also Figures 1 to 10In this embodiment, a pressure-resistant and corrosion-resistant thermocouple is provided, including a thermocouple body 1, a protective sleeve 2 is provided on the thermocouple body 1, a threaded groove 13 is provided at the bottom of the protective sleeve 2, a pipe cover 3 is provided at the lower end of the protective sleeve 2, a fixing cylinder 29 is fixed to the upper end of the pipe cover 3, a threaded ring 12 is provided on the outer side of the fixing cylinder 29, and the fixing cylinder 29 is fixedly connected to the protective sleeve 2 through a threaded connection between the threaded ring 12 and the threaded groove 13, a type limit frame 4 is provided on the protective sleeve 2, the type limit frame 4 is slidably connected to the protective sleeve 2, and a cross bar 30 is fixed to the upper and lower directions of the left front end and the right rear end of the type limit frame 4, and the other ends of the upper and lower cross bars 30 are fixed with the same slide 5, and the slide 5 is provided with a gradually narrowing groove 14. The left front end and the right rear end of the protective sleeve 2 are fixed with a sliding rod 10, and the sliding rod 10 passes through the slide 5. The front end of the middle part of the I-type limit frame 4 is provided with a first curved plate 18, and the left and right ends of the first curved plate 18 are fixed with connecting rods 20, and the other end of the connecting rod 20 is fixed with a fixed block 21. A slot 22 is provided on one side of the fixed block 21, and a through hole 23 is provided on the other end of the slot 22. The through hole 23 passes through the fixed block 21. A second curved plate 19 is provided at the rear end of the middle part of the I-type limit frame 4. L-shaped rods 24 are fixed to the upper and lower directions of the front ends of the left and right sides of the second curved plate 19. The same telescopic rod 25 is fixed between the upper and lower L-shaped rods 24. A reset spring 26 is provided on the telescopic rod 25. One end of the telescopic rod 25 They are all fixed with a card block 27, and the card block 27 is located in the card slot 22 to realize the fixed connection between the first curved plate 18 and the second curved plate 19. The front side of the first curved plate 18 and the rear side of the second curved plate 19 are provided with a limiting groove 17, and a limiting block 16 is provided in the limiting groove 17. The limiting block 16 is rotatably connected to the limiting groove 17, and the other end of the limiting block 16 is fixed with a threaded rod 11, and the other end of the threaded rod 11 is fixed with a turntable 9. A splint 6 is provided on the threaded rod 11, and a threaded through hole 15 is provided on the splint 6. The threaded rod 11 passes through the threaded through hole 15 and is threadedly connected to the threaded through hole 15. A limiting hole 28 is provided in the left and right directions of the splint 6, and the front end of the first curved plate 18 and the rear end of the second curved plate 19 Fixed rods 7 are provided in the left and right directions, and the fixing rods 7 pass through the limiting holes 28 and are slidably connected to the limiting holes 28. The other ends of the fixing rods 7 are fixed with blocks 8. The bottom of the thermocouple body 1 is protected by structures such as the threaded groove 13, the pipe cover 3, the fixing cylinder 29 and the threaded ring 12, thereby effectively extending the service life of the thermocouple body 1. The free loading and unloading between the first curved plate 18 and the second curved plate 19 is achieved by structures such as the telescopic rod 25, the reset spring 26, the block 27, the slot 22, the through hole 23 and the fixing block 21. The movement of the splint 6 is achieved by structures such as the splint 6, the threaded rod 11, the threaded through hole 15, the fixing rod 7, the limiting hole 28, the limiting block 16, the limiting slot 17 and the turntable 9, thereby achieving the fixation of the device.At the same time, the height adjustment of the I-shaped limit frame 4 is achieved through the structures such as the slide 5, the slide rod 10, the gradually narrowing groove 14 and the cross bar 30, thereby achieving the height adjustment of the splint 6.

[0035] When using the present invention, first slide the slide cylinder 5 on the slide rod 10 to adjust the height of the work-type limit frame 4. After determining the height, the slide cylinder 5 is driven to rotate by rotating the work-type limit frame 4 so that the slide rod 10 is located in the narrower area of ​​the gradually narrowing groove 14, thereby realizing the limitation of the work-type limit frame 4. Then, the first curved plate 18 and the second curved plate 19 are both inserted into the recess of the work-type limit frame 4. At the same time, the telescopic rod 25 is contracted by pressing the card block 27 to splice the first curved plate 18 and the second curved plate 19 so that the card block 27 is located at one end of the card slot 22. Then, the card block 27 is inserted into the card slot 22 by the force of the reset spring 26 on the card block 27, thereby realizing the first The arc plate 18 is fixedly connected to the second arc plate 19 and fixed on the I-type limit frame 4. Then, the tube cover 3 is rotated through the threaded connection between the thread ring 12 and the thread groove 13 to remove the tube cover 3 and connect the thermocouple body 1 to the medium to be measured. Then, the turntable 9 is rotated to drive the threaded rod 11 to rotate and the limit block 16 to rotate in the limit groove 17. At the same time, the threaded connection between the threaded rod 11 and the threaded through hole 15 and the limitation of the clamping plate 6 by the fixing rod 7 make the clamping plate 6 move on the threaded rod 11 when the threaded rod 11 rotates. The protection sleeve 2 is fixed by the movement of the two clamping plates 6, thereby fixing the thermocouple body 1.

[0036] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A pressure-resistant and corrosion-resistant thermocouple, comprising a thermocouple body (1), characterized in that: A protective sleeve (2) is provided on the thermocouple body (1), and an industrial type limiting frame (4) is provided on the protective sleeve (2); the industrial type limiting frame (4) comprises an upper / lower ring sleeve sleeved on the protective sleeve (2), a first arc plate (18) and a second arc plate (19) are provided between the upper ring sleeve and the lower ring sleeve, the first arc plate (18) and the second arc plate (19) are detachably connected, the front end of the middle part of the industrial type limiting frame (4) is provided with the first arc plate (18), and the rear end of the middle part of the industrial type limiting frame (4) is provided with the second arc plate (19); The front side of the first curved plate (18) and the rear side of the second curved plate (19) are both provided with a limiting groove (17), and a limiting block (16) is provided in each of the limiting grooves (17); The other end of the limit block (16) is fixed with a threaded rod (11), the other end of the threaded rod (11) is fixed with a turntable (9), and a clamping plate (6) is provided on the threaded rod (11); The splints (6) are each provided with a threaded through hole (15), and the threaded rods (11) are each passed through the threaded through hole (15) and are threadedly connected to the threaded through hole (15); Limiting holes (28) are provided on the left and right sides of the clamping plate (6), and fixing rods (7) are provided on the left and right sides of the front end of the first curved plate (18) and the rear end of the second curved plate (19); The fixing rods (7) all pass through the limiting holes (28) and are slidably connected to the limiting holes (28), and the other ends of the fixing rods (7) are all fixed with stoppers (8); The industrial-type limit frame (4) is slidably connected to the protective sleeve (2), and a cross bar is fixed at both ends of the upper / lower ring sleeve, and the other ends of the upper and lower cross bars (30) are fixed with the same slide cylinder (5); The slide cylinder (5) is provided with a gradually narrowing groove (14), and the left front end and the right rear end of the protective sleeve (2) are fixed with a slide rod (10), and the slide rod (10) passes through the slide cylinder (5).

2. A pressure-resistant and corrosion-resistant thermocouple according to claim 1, characterized in that: The outer surface of the protective sleeve (2) is provided with an anti-corrosion lining made of polytetrafluoroethylene.

3. The pressure-resistant and corrosion-resistant thermocouple according to claim 1, characterized in that: The protective sleeve (2) is manufactured in an integrated manner by punching a rod as a whole.

4. The pressure-resistant and corrosion-resistant thermocouple according to claim 1, characterized in that: The bottom of the protective sleeve (2) is provided with a threaded groove (13), the lower end of the protective sleeve (2) is provided with a tube cover (3), and the upper end of the tube cover (3) is fixed with a fixing cylinder (29).

5. The pressure-resistant and corrosion-resistant thermocouple according to claim 4, characterized in that: A threaded ring (12) is provided on the outside of the fixing cylinder (29), and the fixing cylinder (29) is fixedly connected to the protective sleeve (2) through a threaded connection between the threaded ring (12) and the threaded groove (13).

6. The pressure-resistant and corrosion-resistant thermocouple according to claim 1, characterized in that: Connecting rods (20) are fixed to both left and right ends of the first arc-shaped plate (18), and fixing blocks (21) are fixed to the other ends of the connecting rods (20), with a slot (22) being provided on one side of the fixing blocks (21).

7. The pressure-resistant and corrosion-resistant thermocouple according to claim 6, characterized in that: The other end of the slot (22) is provided with a through hole (23), and the through hole (23) passes through the fixed block (21). L-shaped rods (24) are fixed in the upper and lower directions of the front ends of the left and right sides of the second curved plate (19), and the same telescopic rod (25) is fixed between the upper and lower L-shaped rods (24).

8. The pressure-resistant and corrosion-resistant thermocouple according to claim 7, characterized in that: The telescopic rods (25) are each provided with a return spring (26), and a clamping block (27) is fixed to one end of the telescopic rods (25). The clamping block (27) is located in the clamping groove (22) to achieve a fixed connection between the first arc plate (18) and the second arc plate (19).

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