Thermocouple protective sleeve

Abstract

The utility model relates to the technical field of thermocouple protective sleeves, and discloses a thermocouple protective sleeve, which comprises a clamping assembly, a pressing assembly, a protective sleeve assembly, a thermocouple body and a mounting pipe arranged on the outer wall of an annealing furnace. According to the thermocouple fixing device, the multiple structural plates are arranged on the surface of the mounting pipe, the clamping assemblies are arranged in the compression cavities of the structural plates, the pressing assemblies are arranged on the outer surface of the mounting pipe, various thermocouples of different sizes can be fixedly mounted through cooperation of the pressing assemblies and the clamping assemblies, and the thermocouple fixing device has better universality and flexibility.

Description

Technical Field

[0001] The utility model relates to the technical field of thermocouple protection sleeves, in particular to a thermocouple protection sleeve. Background Art

[0002] Thermocouple is a commonly used temperature measuring element in temperature measuring instruments. It directly measures temperature and converts the temperature signal into a thermoelectromotive force signal, which is then converted into the temperature of the measured medium through an electrical instrument (secondary instrument). When measuring temperature, the thermocouple is usually fixed in a device, such as an annealing furnace. When the workpiece in the annealing furnace moves, it may collide with the thermocouple. Therefore, a protective cover is used to block and protect the working end of the thermocouple, thereby improving the protection performance of the thermocouple when in use.

[0003] Some thermocouple protective covers currently on the market: For example, the utility model patent with authorization announcement number CN217084001U discloses a thermocouple that can be hidden by embedding. The thermocouple puts the protective outer tube into the mechanical equipment that needs to measure the temperature to protect the thermocouple body. When the temperature needs to be measured, the thermocouple body and the protective inner tube can be pushed inward, so that the protective inner tube slides inside the protective outer tube, thereby compressing the spring and allowing the thermocouple body to enter the interior of the machine for temperature measurement. The protective outer tube and the protective inner tube are hidden for protection. After temperature measurement, the spring drives the protective inner tube back to its original position, so that the thermocouple body moves out of the protective outer tube to avoid contact with materials and internal parts, thereby protecting the thermocouple body. However, since the thermocouple body and the protective inner tube are connected by the threaded fit of the connecting sleeve and the protective inner tube, the versatility and flexibility of the protection are poor. It can only be installed for thermocouples of a single size, and the selectivity is relatively single. It cannot meet the needs of diversified thermocouple sizes in industrial applications. It is inconvenient for staff to inspect and replace the thermocouple body, and needs to be improved.

[0004] Therefore, we propose a thermocouple protection sleeve to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that some current thermocouple protection sleeves are poor in versatility and flexibility, because the thermocouple body and the protection inner tube are connected by the threaded cooperation of the connecting sleeve and the protection inner tube, and can only be installed for thermocouples of a single size. The selectivity is relatively single and cannot meet the demand for diversified thermocouple sizes in industrial applications. It is inconvenient for workers to repair and replace the thermocouple body, and this problem needs to be improved.

[0006] To achieve the above object, the present invention adopts the following technical solution: a thermocouple protective cover, comprising: a mounting tube arranged on the outer wall of an annealing furnace, a plurality of structural plates arranged on the surface of the mounting tube, and a compression cavity opened in the structural plates;

[0007] A clamping assembly is arranged inside the compression chamber, the clamping assembly includes an extrusion plate and a spring, the side of the extrusion plate is connected to a limit plate, the side of the limit plate is connected to a pressure rod, and the spring is sleeved on the surface of the pressure rod;

[0008] A pressing assembly is movably arranged on the outer surface of the mounting tube;

[0009] A protective cover assembly is provided at one end of the mounting tube, and the protective cover assembly is located in the annealing furnace;

[0010] The thermocouple body is arranged in the mounting tube and the protective cover assembly, and the thermocouple body is clamped and fixed by the cooperation of the pressing assembly and the clamping assembly

[0011] Furthermore, the outer surface of the mounting tube is connected to a first mounting plate, and a plurality of first bolts are provided on the first mounting plate. The mounting tube is mounted on the outer wall of the annealing furnace through the cooperation between the first mounting plate and the first bolts.

[0012] Furthermore, the pressing assembly includes a rotating ring and a lower pressure cover, the upper surface of the lower pressure cover is provided with a through hole adapted to the rotating ring, the outer surface of the rotating ring is connected to a rotating plate near the bottom end, the inner wall of the through hole is provided with a rotating groove rotatably connected to the rotating plate, the outer surface of the mounting tube is provided with an external thread, and the inner wall of the rotating ring is provided with an internal thread adapted to the external thread.

[0013] Furthermore, the extrusion plate is configured as a triangular structure, and the inclined side surface of the extrusion plate is in contact with the bottom end of the lower pressure cover.

[0014] Furthermore, the protective cover assembly includes a cover body, the top end of the cover body is connected to a second mounting plate, a plurality of second bolts are provided on the second mounting plate, and the protective cover assembly is installed at one end of the mounting tube through the cooperation between the second mounting plate and the second bolts.

[0015] Furthermore, the sleeve body is configured as a cage-like structure as a whole.

[0016] The beneficial effects of the utility model are as follows: by arranging a mounting tube on the outer wall of the annealing furnace, arranging a plurality of structural plates on the surface of the mounting tube, arranging a clamping assembly in the compression cavity of the structural plate, and arranging a pressing assembly on the outer surface of the mounting tube, thermocouples of various sizes can be fixedly installed through the cooperation of the pressing assembly and the clamping assembly, and the utility model has better versatility and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of the thermocouple protective cover of the utility model;

[0018] Figure 2 This is a schematic structural diagram of the first part of the thermocouple protective cover of the utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the first part of the thermocouple protective cover of the utility model;

[0020] Figure 4 This utility model Figure 3 A magnified schematic diagram of the local structure A;

[0021] Figure 5 This is a schematic structural diagram of the second part of the thermocouple protective cover of the utility model;

[0022] Figure 6 This utility model Figure 5 Enlarged schematic diagram of local structure B.

[0023] The names corresponding to the marks in the figure are:

[0024] 1. Annealing furnace; 2. Mounting tube; 3. Structural plate; 31. Compression chamber; 4. Clamping assembly; 41. Extrusion plate; 42. Spring; 43. Limiting plate; 44. Pressure rod; 5. Pressing assembly; 51. Rotating ring; 52. Lower pressure cover; 53. Rotating plate; 6. Protective cover assembly; 61. Cover body; 62. Second mounting plate; 63. Second bolt; 7. Thermocouple body; 8. First mounting plate; 9. First bolt. DETAILED DESCRIPTION

[0025] 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 are within the scope of protection of the present invention.

[0026] Embodiments of the present utility model:

[0027] Example 1

[0028] like Figures 1-6As shown, the utility model provides a thermocouple protective cover, comprising: a clamping component 4, a pressing component 5, a protective cover component 6, a thermocouple body 7, and a mounting tube 2 arranged on the outer wall of the annealing furnace 1, a plurality of structural plates 3 are arranged on the surface of the mounting tube 2, a compression chamber 31 is opened in the structural plate 3, a first mounting plate 8 is connected to the outer surface of the mounting tube 2, a plurality of first bolts 9 are arranged on the first mounting plate 8, the mounting tube 2 is mounted on the outer wall of the annealing furnace 1 through the cooperation of the first mounting plate 8 and the first bolts 9, the clamping component 4 is arranged inside the compression chamber 31, the clamping component 4 It includes an extrusion plate 41 and a spring 42. The side of the extrusion plate 41 is connected to a limit plate 43. The side of the limit plate 43 is connected to a pressure rod 44. The spring 42 is sleeved on the surface of the pressure rod 44. The thermocouple body 7 is arranged in the mounting tube 2 and the protective cover assembly 6. The thermocouple body 7 is clamped and fixed by the cooperation of the pressing assembly 5 and the clamping assembly 4. When it is necessary to loosen the thermocouple body 7, it is only necessary to move the pressing assembly 5 upward to release the pressure on the clamping assembly 4. The extrusion plate 41 and the pressure rod 44 will be reset under the action of the spring 42, and the clamping and fixation of the thermocouple body 7 will be released.

[0029] Among them, the pressing component 5 is movably arranged on the outer surface of the mounting tube 2, and the pressing component 5 includes a rotating ring 51 and a lower pressure cover 52. The upper surface of the lower pressure cover 52 is provided with a through hole adapted to the rotating ring 51, and the outer surface of the rotating ring 51 is connected to a rotating plate 53 near the bottom end. The inner wall of the through hole is provided with a rotating groove rotatably connected to the rotating plate 53. The outer surface of the mounting tube 2 is provided with an external thread, and the inner wall of the rotating ring 51 is provided with an internal thread adapted to the external thread. The extrusion plate 41 is provided with a triangular structure, and the extrusion plate 41 is provided with a plurality of holes. The inclined side surface contacts the bottom end of the lower pressure cover 52, the protective cover assembly 6 is arranged at one end of the mounting tube 2, and the protective cover assembly 6 is located in the annealing furnace 1. After the thermocouple body 7 is inserted into the mounting tube 2 and the protective cover assembly 6, the rotating ring 51 of the pressing assembly 5 is rotated to drive the lower pressure cover 52 to move downward under the threaded cooperation. The lower pressure cover 52 will contact the inclined side surface of the extrusion plate 41 and squeeze it, pressing it into the compression chamber 31, and the pressure rod 44 will also move accordingly, thereby clamping and fixing the thermocouple body 7.

[0030] Example 2

[0031] like Figure 5-Figure 6 As shown, on the basis of the first embodiment of the present invention: the protective cover assembly 6 includes a cover body 61, the top end of the cover body 61 is connected to a second mounting plate 62, and a plurality of second bolts 63 are provided on the second mounting plate 62. The protective cover assembly 6 is installed at one end of the mounting tube 2 through the cooperation of the second mounting plate 62 and the second bolts 63. The cover body 61 is configured as a cage-like structure as a whole. Through such a configuration, while being able to protect the thermocouple body 7, air circulation can be enabled to prevent the protective cover from affecting the accuracy of the measurement.

Claims

1. A thermocouple protective cover, characterized in that: include: A mounting tube (2) is arranged on the outer wall of the annealing furnace (1), a plurality of structural plates (3) are arranged on the surface of the mounting tube (2), and a compression cavity (31) is opened in the structural plates (3); A clamping assembly (4) is arranged inside the compression chamber (31); A pressing assembly (5) is movably arranged on the outer surface of the mounting tube (2); A protective cover assembly (6) is provided at one end of the mounting tube (2), and the protective cover assembly (6) is located in the annealing furnace (1); The thermocouple body (7) is arranged in the installation tube (2) and the protective cover assembly (6), and the thermocouple body (7) is clamped and fixed by the cooperation of the pressing assembly (5) and the clamping assembly (4).

2. A thermocouple protective cover according to claim 1, characterized in that: The clamping assembly (4) comprises an extrusion plate (41) and a spring (42); the extrusion plate (41) is connected to a limiting plate (43) on its side; the limiting plate (43) is connected to a pressure rod (44) on its side; and the spring (42) is sleeved on the surface of the pressure rod (44).

3. The thermocouple protection cover according to claim 1, characterized in that: The outer surface of the mounting tube (2) is connected to a first mounting plate (8), and a plurality of first bolts (9) are provided on the first mounting plate (8). The mounting tube (2) is mounted on the outer wall of the annealing furnace (1) through the cooperation between the first mounting plate (8) and the first bolts (9).

4. The thermocouple protection cover according to claim 2, characterized in that: The pressing assembly (5) comprises a rotating ring (51) and a lower pressure cover (52); a through hole adapted to the rotating ring (51) is provided on the upper surface of the lower pressure cover (52); a rotating plate (53) is connected to the outer surface of the rotating ring (51) near the bottom end; a rotating groove rotatably connected to the rotating plate (53) is provided on the inner wall of the through hole; an external thread is provided on the outer surface of the mounting tube (2); and an internal thread adapted to the external thread is provided on the inner wall of the rotating ring (51).

5. The thermocouple protection cover according to claim 4, characterized in that: The extrusion plate (41) is configured as a triangular structure, and the inclined side surface of the extrusion plate (41) contacts the bottom end of the lower pressure cover (52).

6. The thermocouple protection cover according to claim 1, characterized in that: The protective cover assembly (6) comprises a cover body (61), the top end of the cover body (61) is connected to a second mounting plate (62), a plurality of second bolts (63) are provided on the second mounting plate (62), and the protective cover assembly (6) is mounted on one end of the mounting tube (2) through the cooperation between the second mounting plate (62) and the second bolts (63).

7. The thermocouple protection cover according to claim 6, characterized in that: The sleeve (61) is configured as a cage-like structure as a whole.

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