Wear-resistant thermocouple

Abstract

The utility model discloses a wear-resistant thermocouple which comprises a thermocouple body, the outer surface of the thermocouple body is provided with a buckle seat, the outer surface of the thermocouple body is provided with a thermocouple core, the lower surface of the buckle seat is provided with a first annular opening, and the inner surface of the first annular opening is provided with a sealing ring. And a connecting seat is arranged on the lower surface of the buckle seat. By arranging structures such as a buckle seat, a connecting seat, a buckle column, an L-shaped buckle, an inclined surface block, a sliding rod, a pressing plate, a wedge-shaped block and a spring, the wear-resistant sleeve can be integrally disassembled and replaced, so that the trouble of replacing the whole thermocouple when the wear-resistant sleeve is damaged and worn is avoided, the maintenance cost and the downtime are further reduced, and the working efficiency is improved. By arranging the sealing ring, the first annular opening and the second annular opening, corrosive substances in the external environment can be prevented from entering the interior through the joint of the wear-resistant sleeve and the thermocouple to be in contact with the galvanic couple core, so that the service life of the galvanic couple core is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of thermocouple technology, and in particular to a wear-resistant thermocouple. Background Technology

[0002] A thermocouple is a common temperature sensor. Its working principle is based on the Seebeck effect, where two different metallic conductors connected together form a circuit. When the two connection points are at different temperatures, a thermoelectric electromotive force (EMF) is generated in the circuit. By measuring this EMF, the temperature value can be accurately calculated. Due to its simple structure, wide measurement range, high accuracy, and fast response speed, thermocouples are widely used in temperature measurement and control in industrial production, such as in steel smelting, petrochemicals, power generation, metallurgy, and building materials.

[0003] However, existing thermocouples still have certain drawbacks. For example, the wear-resistant sleeves on thermocouples are usually fixed by welding or integral casting. Although these methods can provide a good fixing effect, the operation is very complicated when the wear-resistant sleeve needs to be replaced, which will cause a long downtime and affect production efficiency. Replacing the entire equipment directly will increase costs and lack practicality. Utility Model Content

[0004] The purpose of this invention is to provide a wear-resistant thermocouple in which the entire wear-resistant sleeve can be disassembled and replaced, thereby avoiding the trouble of replacing the entire thermocouple when the wear-resistant sleeve is damaged or worn, and thus reducing maintenance costs and downtime.

[0005] To achieve the above objectives, a wear-resistant thermocouple is provided, comprising:

[0006] A thermocouple body has a latching seat on its outer surface and a thermocouple core on its outer surface. The latching seat has a first annular opening on its lower surface and a sealing ring on its inner surface. A connecting seat is located on the lower surface of the latching seat. A through hole is located on the outer surface of the connecting seat, and a wear-resistant sleeve is fixedly connected to the inner surface of the through hole. A latching post is fixedly connected to the upper surface of the connecting seat. An L-shaped latch is slidably connected to the inner surface of the latching post. A beveled block is fixedly connected to the outer surface of the L-shaped latch. A sliding rod is slidably connected to the inner surface of the connecting seat. A pressure plate is fixedly connected to the outer surface of the sliding rod. A wedge-shaped block is fixedly connected to the end of the sliding rod away from the pressure plate. A spring is fixedly connected to the inner surface of the L-shaped latch.

[0007] According to the wear-resistant thermocouple described above, the lower surface of the latch seat is provided with a slot, and the inner surface of the slot is adapted to the latch post.

[0008] According to the wear-resistant thermocouple described above, the inner surface of the slot is provided with a groove, and the inner surface of the groove is adapted to an L-shaped buckle.

[0009] According to the wear-resistant thermocouple described above, the upper surface of the connecting seat is provided with a second annular opening, and the inner surface of the second annular opening is adapted to the sealing ring.

[0010] According to the wear-resistant thermocouple described above, the number of the snap-fit ​​posts is two and they are symmetrically distributed.

[0011] According to the wear-resistant thermocouple described above, the outer surface of the L-shaped buckle is slidably connected to the connecting seat, and the outer surface of the inclined block is slidably connected to the wedge block.

[0012] According to the wear-resistant thermocouple described above, the outer surface of the inclined block is slidably connected to the connecting seat, and the outer surface of the wedge block is slidably connected to the connecting seat.

[0013] According to the aforementioned wear-resistant thermocouple, the thermocouple core is disposed inside the wear-resistant sleeve.

[0014] The above-mentioned solution has the following beneficial effects:

[0015] 1. By setting up structures such as buckle seat, connecting seat, buckle post, L-shaped buckle, inclined block, slide rod, pressure plate, wedge block and spring, the wear-resistant sleeve can be disassembled and replaced as a whole, thus avoiding the trouble of replacing the entire thermocouple when the wear-resistant sleeve is damaged or worn, thereby reducing maintenance costs and downtime.

[0016] 2. By setting a sealing ring, a first annular opening, and a second annular opening, corrosive substances in the external environment can be prevented from entering the interior through the wear-resistant sleeve and the thermocouple connection and coming into contact with the thermocouple core, thereby improving the service life of the thermocouple core.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a schematic diagram of the overall structure of a wear-resistant thermocouple according to the present invention;

[0020] Figure 2 This is a partial structural diagram of a wear-resistant thermocouple according to the present invention;

[0021] Figure 3 This is a schematic diagram of the internal structure of a wear-resistant thermocouple according to the present invention;

[0022] Figure 4 This is a partial structural cross-sectional view of a wear-resistant thermocouple according to this utility model;

[0023] Figure 5 This is a cross-sectional view of the internal structure of a wear-resistant thermocouple according to this utility model.

[0024] Legend:

[0025] 1. Thermocouple body; 2. Snap-fit ​​seat; 3. Thermocouple core; 4. Sealing ring; 5. Connecting seat; 6. Through hole; 7. Wear-resistant sleeve; 8. Snap-fit ​​post; 9. L-shaped snap-fit; 10. Inclined block; 11. Slide rod; 12. Pressure plate; 13. Wedge block; 14. Spring; 15. Slot; 16. Slot; 17. First annular opening; 18. Second annular opening. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] Reference Figure 1-5This utility model discloses a wear-resistant thermocouple, comprising: a thermocouple body 1, a snap-fit ​​seat 2 on the outer surface of the thermocouple body 1, a thermocouple core 3 on the outer surface of the thermocouple body 1, a first annular opening 17 on the lower surface of the snap-fit ​​seat 2, a sealing ring 4 on the inner surface of the first annular opening 17, a connecting seat 5 on the lower surface of the snap-fit ​​seat 2, a through hole 6 on the outer surface of the connecting seat 5, a wear-resistant sleeve 7 fixedly connected to the inner surface of the through hole 6, a snap-fit ​​post 8 fixedly connected to the upper surface of the connecting seat 5, an L-shaped snap 9 slidably connected to the inner surface of the snap-fit ​​post 8, an inclined block 10 fixedly connected to the outer surface of the L-shaped snap 9, a sliding rod 11 slidably connected to the inner surface of the connecting seat 5, a pressure plate 12 fixedly connected to the outer surface of the sliding rod 11, a wedge block 13 fixedly connected to the end of the sliding rod 11 away from the pressure plate 12, and an inclined block 10 fixedly connected to the inner surface of the L-shaped snap 9. The fixed connection is provided with a spring 14. The lower surface of the buckle seat 2 is provided with a slot 15. The inner surface of the slot 15 is adapted to the buckle post 8 to facilitate the installation of the wear-resistant sleeve 7. The inner surface of the slot 15 is provided with a groove 16. The inner surface of the groove 16 is adapted to the L-shaped buckle 9 to facilitate the fixation of the wear-resistant sleeve 7. The upper surface of the connecting seat 5 is provided with a second annular opening 18. The inner surface of the second annular opening 18 is adapted to the sealing ring 4 to facilitate the limiting of the sealing gasket. There are two buckle posts 8, which are symmetrically distributed to facilitate the positioning of the wear-resistant sleeve 7 during installation. The outer surface of the L-shaped buckle 9 is slidably connected to the connecting seat 5. The outer surface of the inclined block 10 is slidably connected to the connecting seat 5. The outer surface of the wedge block 13 is slidably connected to the connecting seat 5. The electrocouple core 3 is set inside the wear-resistant sleeve 7 to facilitate the protection of the electrocouple core 3.

[0028] Working principle: When it is necessary to disassemble the wear-resistant sleeve 7, simply press the pressure plate 12, which drives the slide rod 11 to move the wedge block 13 along the inclined surface of the inclined block 10. This will cause the two corresponding L-shaped buckles 9 to retract into the inside of the buckle post 8, and compress the spring 14, thereby causing the L-shaped buckles 9 to disengage from the inside of the slot 16. Then, pull out the entire connecting seat 5 and wear-resistant sleeve 7 along the spring 14 to complete the disassembly of the entire wear-resistant sleeve 7. Then, press the pressure plate 12 on the new connecting seat 5 and wear-resistant sleeve 7, align the wear-resistant sleeve 7 with the thermocouple core 3 and put it on, while simultaneously causing the buckle post 8 to... When the L-shaped buckle 9, which is in the retracted state, aligns with the slot 16, the pressure plate 12 is released. Under the restoring force of the spring 14, the L-shaped buckle 9 will automatically snap into the slot 16, thus completing the replacement of the wear-resistant sleeve 7. This is simple and convenient. Furthermore, by placing the sealing ring 4 inside the second annular opening 18, and then connecting the connecting seat 5 to the buckle seat 2, the sealing ring 4 can be snapped into the first annular opening 17, thereby effectively sealing the connection between the thermocouple and the wear-resistant sleeve 7. This prevents corrosive substances from eroding the thermocouple core 3, thereby extending the service life of the equipment.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A wear resistant thermocouple comprising: The utility model provides a thermocouple body (1), the outer surface of thermocouple body (1) is provided with buckle seat (2), the outer surface of thermocouple body (1) is provided with electric couple core (3), it is characterized in that, the lower surface of buckle seat (2) is provided with first annular opening (17), the inner surface of first annular opening (17) is provided with sealing ring (4), the lower surface of buckle seat (2) is provided with connecting seat (5), the outer surface of connecting seat (5) is provided with through -hole (6), the inner surface of through -hole (6) is fixedly connected with wear -resistant cover (7), the upper surface of connecting seat (5) is fixedly connected with buckle column (8), the inner surface of buckle column (8) is slidably connected with L shaped buckle (9), the outer surface of L shaped buckle (9) is fixedly connected with inclined plane block (10), the inner surface of connecting seat (5) is slidably connected with slide bar (11), the outer surface of slide bar (11) is fixedly connected with pressing plate (12), the end of slide bar (11) away from pressing plate (12) is fixedly connected with wedge block (13), the inner surface of L shaped buckle (9) is fixedly connected with spring (14).

2. A wear resistant thermocouple as claimed in claim 1, wherein, The lower surface of the buckle seat (2) is provided with a slot (15), and the inner surface of the slot (15) is matched with the buckle column (8).

3. A wear resistant thermocouple as claimed in claim 2, wherein, The inner surface of the slot (15) is provided with a clamping groove (16), and the inner surface of the clamping groove (16) is matched with the L-shaped buckle (9).

4. A wear resistant thermocouple as claimed in claim 1, wherein, The upper surface of the connecting seat (5) is provided with a second annular opening (18), and the inner surface of the second annular opening (18) is matched with the sealing ring (4).

5. A wear resistant thermocouple as claimed in claim 1, wherein, The number of buckle columns (8) is two and symmetrically distributed.

6. A wear resistant thermocouple as claimed in claim 1, wherein, The outer surface of the L-shaped buckle (9) is slidably connected with the connecting seat (5), and the outer surface of the inclined plane block (10) is slidably connected with the wedge block (13).

7. A wear resistant thermocouple as claimed in claim 1, wherein, The outer surface of the inclined plane block (10) is slidably connected with the connecting seat (5), and the outer surface of the wedge block (13) is slidably connected with the connecting seat (5).

8. A wear resistant thermocouple as claimed in claim 1, wherein, The electric couple core (3) is arranged in the inside of the wear-resistant cover (7).

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