Vacuum furnace sealing thermocouple

Abstract

The utility model provides a vacuum furnace sealing thermocouple which comprises a connector, the connector is connected with a detection tube, the detection tube is provided with a sealing plate, the detection tube is connected with a protection device, and the detection tube is connected with a supporting and fixing device. The supporting and fixing device comprises a handle, a first bevel gear, a second bevel gear, a threaded rod, a threaded ring, a long arm rod, a limiting sliding assembly, a short arm rod and a sliding ring, and the sliding ring is connected with the threaded rod. The handle drives the first bevel gear to rotate so as to drive the second bevel gear to rotate, then the threaded rod is driven to rotate, the threaded rod rotates so as to drive the threaded ring to move, when the long arm rod makes contact with the vacuum furnace, the long arm rod rotates so as to drive the short arm rod to rotate and the sliding ring to move, meanwhile, the first spring is compressed, and the I-shaped sliding block moves; the sealing plate is tightly attached to the vacuum furnace, leakage caused by shaking of the sealing plate is avoided, and the detection pipe is prevented from making direct contact with the ground through the protection device and the sealing plate.

Description

Technical Field

[0001] The utility model patent relates to the technical field of thermocouples, and mainly relates to a vacuum furnace sealed thermocouple. Background Art

[0002] With the rapid development of social economy, thermocouple is a commonly used temperature measuring element in temperature measuring instruments. It directly measures temperature and converts temperature signal into thermoelectric potential signal, which is converted into the temperature of the measured medium through electrical instruments. The appearance of various thermocouples is often very different due to needs, but their basic structure is roughly the same. It is usually composed of main parts such as thermode, insulating sleeve protection tube and junction box, and is usually used in conjunction with display instruments, recording instruments and electronic regulators.

[0003] However, the existing vacuum furnace sealed thermocouples are difficult to disassemble and install quickly, resulting in a lot of time wasted during installation and disassembly, and the conventional installation method has poor stability, resulting in poor sealing, which is easy to cause air leakage and damage to the heating elements and other devices in the vacuum furnace. In this regard, we propose a vacuum furnace sealed thermocouple. Utility Model Content

[0004] The utility model mainly provides a vacuum furnace sealed thermocouple to solve the technical problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the following technical solution is provided: a vacuum furnace sealed thermocouple, comprising a connecting head, one side of the connecting head is connected to a detection tube, a sealing plate is installed on one side of the outer wall of the detection tube, the other side of the detection tube is connected to a protective device, one side of the detection tube is connected to a supporting and fixing device, the supporting and fixing device comprises a handle rotatably connected to one side of the detection tube, a first bevel gear connected to one side of the handle, a second bevel gear meshingly connected to one side of the first bevel gear and a threaded rod connected to one side of the second bevel gear, one side of the threaded rod is penetrated and connected to a threaded ring, both sides of the threaded ring are rotatably connected to a long arm rod, one side of the long arm rod is connected to a limit sliding assembly, one side of the limit sliding assembly is rotatably connected to a short arm rod, the side of the short arm rod away from the limit sliding assembly is rotatably connected to the sliding ring, and the inner wall of the sliding ring is slidably connected to the threaded rod.

[0006] Furthermore, the position-limiting sliding assembly includes a first spring connected to one side of the long arm rod and an I-shaped sliding block connected to one side of the first spring, and the I-shaped sliding block is slidably connected to the long arm rod.

[0007] Furthermore, a T-shaped slide groove is provided on one side of the long arm rod, and the groove body of the T-shaped slide groove is slidably connected to the I-shaped slide block.

[0008] Furthermore, the protective device includes a plurality of second springs connected to one side of the detection tube and a protective plate connected to one side of the second spring, and the diameter of the protective plate is larger than the diameter of the outer wall of the detection tube.

[0009] Furthermore, a sealing ring is installed on one side of the sealing plate.

[0010] Furthermore, rectangular holes are provided on both sides of the detection tube, and the hole bodies of the rectangular holes are slidably connected with the protrusions on both sides of the threaded ring and the sliding ring.

[0011] Furthermore, a bevel is provided on one side of the long arm rod away from the threaded rod, a rounded corner is provided on one side of the bevel, and a roller is rotatably connected to the other side of the bevel.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model provides a sealed thermocouple for a vacuum furnace, which drives the first bevel gear to rotate by a handle, thereby driving the second bevel gear to rotate, and then driving the threaded rod to rotate. The threaded rod rotates, thereby driving the threaded ring to move. When the long arm rod contacts the vacuum furnace, the long arm rod rotates, thereby driving the short arm rod to rotate and the sliding ring to move. At the same time, the first spring is compressed and the I-shaped sliding block moves, so that the sealing plate is closely attached to the vacuum furnace, avoiding the sealing plate from shaking and leaking. The protective device and the sealing plate prevent the detection tube from directly contacting the ground, thereby avoiding damage to the detection tube. The device is not only easy to install and disassemble, but also simple to operate and will not leak.

[0014] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the supporting and fixing device of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the supporting and fixing device of the utility model;

[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0019] In the figure: 10, connector; 20, detection tube; 30, supporting fixture; 31, handle; 32, first bevel gear; 33, second bevel gear; 34, threaded rod; 35, threaded ring; 36, sliding ring; 37, long arm rod; 371, T-shaped slide; 372, roller; 38, limit sliding assembly; 381, first spring; 382, ​​I-shaped slide; 39, short arm rod; 40, protective device; 41, second spring; 42, protective plate; 50, sealing plate; 51, sealing ring. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0021] For example, please refer to Figure 1-4 A vacuum furnace sealed thermocouple comprises a connector 10, one side of the connector 10 is connected to a detection tube 20, one side of the outer wall of the detection tube 20 is provided with a sealing plate 50, the other side of the detection tube 20 is connected to a protective device 40, one side of the detection tube 20 is connected to a supporting and fixing device 30, the supporting and fixing device 30 comprises a handle 31 rotatably connected to one side of the detection tube 20, a first bevel gear 32 connected to one side of the handle 31, a second bevel gear 33 meshingly connected to one side of the first bevel gear 32 and a threaded rod 34 connected to one side of the second bevel gear 33, one side of the threaded rod 34 is penetrated and connected to a threaded ring 35, both sides of the threaded ring 35 are rotatably connected to a long arm rod 37, one side of the long arm rod 37 is connected to a limit sliding assembly 38, one side of the limit sliding assembly 38 is rotatably connected to a short arm rod 39, the side of the short arm rod 39 away from the limit sliding assembly 38 is rotatably connected to a sliding ring 36, and the inner wall of the sliding ring 36 is slidably connected to the threaded rod 34.

[0022] It should be noted that, in the embodiment, the handle 31 drives the first bevel gear 32 to rotate, thereby driving the second bevel gear 33 to rotate, and then driving the threaded rod 34 to rotate. The threaded rod 34 rotates, thereby driving the threaded ring 35 to move. When the long arm rod 37 contacts the vacuum furnace, the long arm rod 37 rotates, thereby driving the short arm rod 39 to rotate and the sliding ring 36 to move.

[0023] Furthermore, the long arm 37 can freely enter and exit the vacuum furnace under normal conditions.

[0024] For example, please refer to Figure 2-4The limiting sliding assembly 38 includes a first spring 381 connected to one side of the long arm rod 37 and an I-shaped sliding block 382 connected to one side of the first spring 381 , and the I-shaped sliding block 382 is slidably connected to the long arm rod 37 .

[0025] It should be noted that, in the embodiment, the elastic force of the first spring 381 facilitates the resetting of the long arm rod 37 , and the sliding of the I-shaped slider 382 facilitates the rotation of the long arm rod 37 .

[0026] For example, please refer to Figure 4 A T-shaped slide groove 371 is provided on one side of the long arm rod 37 , and the groove body of the T-shaped slide groove 371 is slidably connected to the I-shaped slide block 382 .

[0027] It should be noted that, in the embodiment, the T-shaped slide groove 371 limits the moving range of the I-shaped slide block 382 .

[0028] For example, please refer to Figure 1 The protective device 40 includes a plurality of second springs 41 connected to one side of the detection tube 20 and a protective plate 42 connected to one side of the second spring 41 , and the diameter of the protective plate 42 is greater than the diameter of the outer wall of the detection tube 20 .

[0029] It should be noted that, in the embodiment, the detection tube 20 is protected by the second spring 41 and the protective plate 42, and the diameter of the protective plate 42 is larger than the diameter of the outer wall of the detection tube 20, thereby preventing the detection tube 20 from falling and directly contacting the ground, thereby preventing the detection tube 20 from falling and causing damage.

[0030] For example, please refer to Figure 1 A sealing ring 51 is installed on one side of the sealing plate 50.

[0031] It should be noted that, in the embodiment, the sealing ring 51 is convenient for enhancing the sealing performance of the sealing plate 50 to avoid leakage.

[0032] For example, please refer to Figure 1-3 Rectangular holes are provided on both sides of the detection tube 20 , and the hole bodies of the rectangular holes are slidably connected with the protrusions on both sides of the threaded ring 35 and the sliding ring 36 .

[0033] It should be noted that, in the embodiment, the rectangular hole limits the rotation of the threaded ring 35 and the sliding ring 36 .

[0034] For example, please refer to Figure 2-3 The long arm rod 37 is provided with a beveled edge on one side away from the threaded rod 34 , one side of the beveled edge is provided with a rounded corner, and the other side of the beveled edge is rotatably connected to the roller 372 .

[0035] It should be noted that, in the embodiment, the beveled edges and rounded corners are provided to facilitate the sliding of the long arm rod 37 with the inner wall of the vacuum furnace, and the roller 372 further reduces the friction between the long arm rod 37 and the vacuum furnace, thereby facilitating the rotation of the long arm rod 37 .

[0036] The specific operation mode of the utility model is as follows:

[0037] When the above-mentioned vacuum furnace sealed thermocouple is used, the device is inserted into the vacuum furnace so that the sealing plate 50 contacts the outer wall of the vacuum furnace, and then the first bevel gear 32 is driven to rotate through the handle 31, thereby driving the second bevel gear 33 to rotate, and then driving the threaded rod 34 to rotate. The threaded rod 34 rotates, thereby driving the threaded ring 35 to move. When the long arm rod 37 contacts the vacuum furnace, the long arm rod 37 rotates, thereby driving the short arm rod 39 to rotate and the sliding ring 36 to move. At the same time, the first spring 381 is compressed and the I-shaped slider 382 moves. When the sealing plate 50 is close to the vacuum furnace, it stops, and the protective device 40 and the sealing plate 50 prevent the detection tube 20 from directly contacting the ground, thereby preventing the detection tube 20 from being damaged.

[0038] The above-described embodiments only express the implementation methods of the present application, but for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A vacuum furnace sealed thermocouple, comprising a connector (10), characterized in that: One side of the connector (10) is connected to a detection tube (20), one side of an outer wall of the detection tube (20) is provided with a sealing plate (50), the other side of the detection tube (20) is connected to a protective device (40), one side of the detection tube (20) is connected to a supporting and fixing device (30), the supporting and fixing device (30) comprising a handle (31) rotatably connected to one side of the detection tube (20), a first bevel gear (32) connected to one side of the handle (31), and a second bevel gear (33) meshingly connected to one side of the first bevel gear (32). ) and a threaded rod (34) connected to one side of the second bevel gear (33), one side of the threaded rod (34) is penetrated and connected to a threaded ring (35), both sides of the threaded ring (35) are rotatably connected to a long arm rod (37), one side of the long arm rod (37) is connected to a limit sliding assembly (38), one side of the limit sliding assembly (38) is rotatably connected to a short arm rod (39), the side of the short arm rod (39) away from the limit sliding assembly (38) is rotatably connected to a sliding ring (36), and the inner wall of the sliding ring (36) is slidably connected to the threaded rod (34).

2. A vacuum furnace sealed thermocouple according to claim 1, characterized in that: The position-limiting sliding assembly (38) comprises a first spring (381) connected to one side of the long arm rod (37) and an I-shaped sliding block (382) connected to one side of the first spring (381); the I-shaped sliding block (382) is slidably connected to the long arm rod (37).

3. A vacuum furnace sealed thermocouple according to claim 2, characterized in that: A T-shaped slide groove (371) is provided on one side of the long arm rod (37), and the groove body of the T-shaped slide groove (371) is slidably connected to the I-shaped slide block (382).

4. A vacuum furnace sealed thermocouple according to claim 1, characterized in that: The protective device (40) comprises a plurality of second springs (41) connected to one side of the detection tube (20) and a protective plate (42) connected to one side of the second spring (41); the diameter of the protective plate (42) is greater than the diameter of the outer wall of the detection tube (20).

5. A vacuum furnace sealed thermocouple according to claim 1, characterized in that: A sealing ring (51) is installed on one side of the sealing plate (50).

6. A vacuum furnace sealed thermocouple according to claim 1, characterized in that: Rectangular holes are provided on both sides of the detection tube (20), and the hole bodies of the rectangular holes are slidably connected with the protrusions on both sides of the threaded ring (35) and the sliding ring (36).

7. A vacuum furnace sealed thermocouple according to claim 1, characterized in that: A bevel is provided on one side of the long arm rod (37) away from the threaded rod (34), a rounded corner is provided on one side of the bevel, and a roller (372) is rotatably connected to the other side of the bevel.

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