Thermocouple used on site and capable of measuring precision without being disassembled

Abstract

The utility model belongs to the technical field of thermocouples, and relates to a thermocouple capable of measuring the precision on site without being detached, which comprises a corundum core, a large hole and small holes, the corundum core is internally provided with four small holes and one large hole, the small holes are used for inserting non-standard thermocouple wires, the large hole is used for inserting standard thermocouple wires, and the small holes are used for inserting standard thermocouple wires. An adjusting device used for adjusting the inner hole diameter of the small hole is arranged in the corundum core to adapt to various thermocouple wires of different sizes, a driving device and a transmission device are arranged on the corundum core, the driving device adjusts the adjusting device through the transmission device, a standard thermocouple wire is inserted through the large hole, and when a non-standard thermocouple wire needs to be inserted, the driving device is rotated to drive the thermocouple wire to be inserted. The driving device drives the transmission device to rotate, the rotating transmission device extrudes the adjusting device, the extruded adjusting device changes the hole diameter in the small hole so as to adapt to non-standard thermo wires of different sizes, the field operability is improved, the precision can be detected without disassembly, and replacement can be conducted when necessary.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermocouples, and particularly relates to a thermocouple which can be used for measuring the accuracy on site without being disassembled. Background Art

[0002] In modern industrial production, there are many thermocouples in high-temperature places that cannot be disassembled or are difficult to disassemble. In order to monitor the accuracy changes of thermocouples during use, standard thermocouples are used as references on site to measure whether their accuracy meets the accuracy requirements of the site, so it is necessary to make some changes inside the casing.

[0003] The existing ball milling method is to add the product into a rotating drum with grinding balls. After grinding, the residual products need to be picked out from the grinding balls. As the use time increases, the waste residue in the grinding balls needs to be removed. Utility Model Content

[0004] The utility model aims to provide a thermocouple which can measure its accuracy without being disassembled on site, so as to adapt to non-standard thermocouple wires of various sizes without disassembling the thermocouple.

[0005] To achieve the above purpose, the specific technical solution of a thermocouple for measuring the accuracy of which cannot be disassembled on site is as follows:

[0006] A thermocouple for measuring its accuracy on site without being disassembled, comprising a corundum core, a large hole and a small hole, wherein four small holes and one large hole are arranged inside the corundum core, the small holes are used to insert non-standard thermocouple wires, and the large hole is used to insert standard thermocouple wires, and the characteristic is that an adjusting device for adjusting the internal aperture of the small holes is arranged inside the corundum core to adapt to thermocouple wires of various sizes, a driving device and a transmission device are arranged on the corundum core, and the driving device adjusts the adjusting device through the transmission device.

[0007] Furthermore, the number of the adjusting devices corresponds to the number of the small holes.

[0008] Furthermore, the adjusting device includes a sliding groove, a sliding cavity, a movable bolt, a spring and an extrusion strip. The sliding groove is arranged inside the corundum core and connected to the small hole. The sliding cavity is arranged inside the corundum core and connected to the sliding groove. The movable bolt slides inside the sliding cavity. The spring is arranged between the movable bolt and the sliding cavity. The extrusion strip is arranged on the movable bolt. The transmission device squeezes the extrusion strip to move.

[0009] Furthermore, the driving device includes an installation groove, a rotating ring, a limiting sliding groove, a movable sleeve, a sliding bar, a thread and a thread groove. The installation groove is arranged on the corundum core, the rotating ring rotates on the installation groove, the limiting sliding groove is arranged inside the installation groove, the sliding bar slides inside the limiting sliding groove, the movable sleeve is arranged on the sliding bar, the upper end of the movable sleeve is provided with a thread, the thread groove is arranged inside the corundum core, and the movable sleeve drives the transmission device to move.

[0010] Furthermore, the surface of the installation groove is provided with anti-slip grooves.

[0011] Further, the transmission device includes a movable extrusion groove, a bevel extrusion ring, a rotating annular groove, an extrusion push bar and a bevel extrusion block. The movable extrusion groove is arranged inside the corundum core and connected with the sliding groove. The bevel extrusion ring slides inside the movable extrusion groove. The rotating annular groove is arranged inside the movable sleeve. The extrusion push bar slides inside the rotating annular groove. The bevel extrusion ring is arranged on the extrusion push bar. The bevel extrusion block is arranged on the extrusion bar. The bevel extrusion ring extrudes the bevel extrusion block to push the extrusion bar to move.

[0012] The advantages of the utility model are:

[0013] The utility model inserts a standard even wire through a large hole, and when a non-standard even wire needs to be inserted, the driving device is rotated, the driving device drives the transmission device to rotate, the rotating transmission device squeezes the adjustment device, and the squeezed adjustment device changes the aperture inside the small hole to adapt to non-standard even wires of different sizes, thereby improving the operability on site, and the accuracy can be tested without disassembly, and it can be replaced when necessary. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is an overall cross-sectional view of the utility model;

[0016] Figure 3 for Figure 2 A partial enlarged schematic diagram;

[0017] Figure 4 for Figure 2 Partial enlarged schematic diagram B;

[0018] Figure 5 A schematic diagram of the structure of the driving device of the utility model;

[0019] Figure 6 A cross-sectional view of the corundum core of the utility model;

[0020] Figure 7 A schematic diagram of the structure of the rotating ring of the utility model;

[0021] Figure 8 A schematic diagram of the transmission structure of the utility model;

[0022] Fig. 9 A schematic diagram of the structure of the regulating device of the utility model;

[0023] Description of the markings in the figure:

[0024] Corundum core 1; large hole 2; small hole 3; adjusting device 4; sliding groove 4-1; sliding cavity 4-2; moving bolt 4-3; spring 4-4; extrusion strip 4-5; driving device 5; mounting groove 5-1; rotating ring 5-2; limiting sliding groove 5-3; moving sleeve 5-4; sliding strip 5-5; thread 5-6; thread groove 5-7; transmission device 6; moving extrusion groove 6-1; inclined extrusion ring 6-2; rotating annular groove 6-3; extrusion push strip 6-4; inclined extrusion block 6-5. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] like Figure 1-9 As shown, a thermocouple for measuring its accuracy on site without being disassembled comprises a corundum core 1, a large hole 2 and a small hole 3. The corundum core 1 is provided with four small holes 3 and one large hole 2. The small holes 3 are used to insert non-standard thermocouple wires, and the large holes 2 are used to insert standard thermocouple wires. It is characterized in that an adjusting device 4 for adjusting the internal aperture of the small holes 3 to accommodate thermocouple wires of various sizes is provided inside the corundum core 1. A driving device 5 and a transmission device 6 are provided on the corundum core 1. The driving device 5 adjusts the adjusting device 4 through the transmission device 6.

[0028] A standard even wire is inserted through the large hole 2. When a non-standard even wire needs to be inserted, the driving device 5 is rotated, and the driving device 5 drives the transmission device 6 to rotate. The rotating transmission device 6 squeezes the adjusting device 4. The squeezed adjusting device 4 changes the aperture inside the small hole 3 to adapt to non-standard even wires of different sizes, thereby improving the operability on site. The accuracy can be tested without disassembly and it can be replaced when necessary.

[0029] Among them, Figure 1-9 As shown, the number of the adjusting devices 4 corresponds to the number of the small holes 3 .

[0030] Among them, Figure 1-9 As shown, the adjusting device 4 includes a sliding groove 4-1, a sliding cavity 4-2, a moving bolt 4-3, a spring 4-4 ​​and an extrusion strip 4-5. The sliding groove 4-1 is arranged inside the corundum core 1 and is connected to the small hole 3. The sliding cavity 4-2 is arranged inside the corundum core 1 and is connected to the sliding groove 4-1. The moving bolt 4-3 slides inside the sliding cavity 4-2. The spring 4-4 ​​is arranged between the moving bolt 4-3 and the sliding cavity 4-2. The extrusion strip 4-5 is arranged on the moving bolt 4-3. The transmission device 6 squeezes the extrusion strip 4-5 to move.

[0031] The extrusion strip 4 - 5 is extruded by the transmission device 6 to move, and the moving extrusion strip 4 - 5 clamps the non-standard even wire.

[0032] Among them, Figure 1-9 As shown, the driving device 5 includes a mounting groove 5-1, a rotating ring 5-2, a limiting sliding groove 5-3, a movable sleeve 5-4, a sliding bar 5-5, a thread 5-6 and a thread groove 5-7. The mounting groove 5-1 is arranged on the corundum core 1, the rotating ring 5-2 rotates on the mounting groove 5-1, the limiting sliding groove 5-3 is arranged inside the mounting groove 5-1, the sliding bar 5-5 slides inside the limiting sliding groove 5-3, the movable sleeve 5-4 is arranged on the sliding bar 5-5, the upper end of the movable sleeve 5-4 is provided with a thread 5-6, the thread groove 5-7 is arranged inside the corundum core 1, and the movable sleeve 5-4 drives the transmission device 6 to move.

[0033] The rotating ring 5-2 drives the movable sleeve 5-4 to rotate, the rotating movable sleeve 5-4 and the thread groove 5-7 cooperate to move, and the moving movable sleeve 5-4 drives the transmission device 6 to move.

[0034] Among them, Figure 1-9 As shown, the surface of the mounting groove 5-1 is provided with anti-slip grooves.

[0035] Among them, Figure 1-9As shown, the transmission device 6 includes a movable extrusion groove 6-1, a bevel extrusion ring 6-2, a rotating annular groove 6-3, an extrusion push strip 6-4 and a bevel extrusion block 6-5. The movable extrusion groove 6-1 is arranged inside the corundum core 1 and is connected to the sliding groove 4-1. The bevel extrusion ring 6-2 slides inside the movable extrusion groove 6-1. The rotating annular groove 6-3 is arranged inside the movable sleeve 5-4. The extrusion push strip 6-4 slides inside the rotating annular groove 6-3. The bevel extrusion ring 6-2 is arranged on the extrusion push strip 6-4. The bevel extrusion block 6-5 is arranged on the extrusion strip 4-5. The bevel extrusion ring 6-2 extrudes the bevel extrusion block 6-5 to push the extrusion strip 4-5 to move.

[0036] The moving sleeve 5-4 drives the inclined surface extrusion ring 6-2 to move, and the moving inclined surface extrusion ring 6-2 drives the extrusion strip 4-5 to move by extruding the inclined surface extrusion block 6-5.

[0037] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and powders without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A thermocouple for measuring its accuracy on site without being disassembled, comprising a corundum core (1), a large hole (2) and a small hole (3), wherein the corundum core (1) is provided with four small holes (3) and one large hole (2), the small holes (3) are used to insert non-standard thermocouple wires, and the large hole (2) is used to insert standard thermocouple wires, characterized in that: The corundum core (1) is provided with an adjusting device (4) for adjusting the internal aperture of the small hole (3) to accommodate even wires of various sizes. The corundum core (1) is provided with a driving device (5) and a transmission device (6). The driving device (5) adjusts the adjusting device (4) through the transmission device (6).

2. A thermocouple for measuring its accuracy on site without being disassembled according to claim 1, characterized in that: The number of the adjusting devices (4) corresponds to the number of the small holes (3).

3. A thermocouple for measuring its accuracy on site without being disassembled according to claim 1, characterized in that: The adjusting device (4) comprises a sliding groove (4-1), a sliding cavity (4-2), a moving bolt (4-3), a spring (4-4) and an extrusion strip (4-5); the sliding groove (4-1) is arranged inside the corundum core (1) and communicated with the small hole (3); the sliding cavity (4-2) is arranged inside the corundum core (1) and communicated with the sliding groove (4-1); the moving bolt (4-3) slides inside the sliding cavity (4-2); the spring (4-4) is arranged between the moving bolt (4-3) and the sliding cavity (4-2); the extrusion strip (4-5) is arranged on the moving bolt (4-3); and the transmission device (6) squeezes the extrusion strip (4-5) to move.

4. A thermocouple for measuring its accuracy without being disassembled on site according to claim 1, characterized in that: The driving device (5) comprises a mounting groove (5-1), a rotating ring (5-2), a limiting sliding groove (5-3), a movable sleeve (5-4), a sliding bar (5-5), a thread (5-6) and a thread groove (5-7); the mounting groove (5-1) is arranged on the corundum core (1); the rotating ring (5-2) rotates on the mounting groove (5-1); the limiting sliding groove (5-3) is arranged inside the mounting groove (5-1); the sliding bar (5-5) slides inside the limiting sliding groove (5-3); the movable sleeve (5-4) is arranged on the sliding bar (5-5); a thread (5-6) is arranged on the upper end of the movable sleeve (5-4); the thread groove (5-7) is arranged inside the corundum core (1); and the movable sleeve (5-4) drives the transmission device (6) to move.

5. A thermocouple for measuring its accuracy on site without being disassembled according to claim 4, characterized in that: The surface of the installation groove (5-1) is provided with anti-slip grooves.

6. A thermocouple for measuring its accuracy on site without being disassembled according to claim 4, characterized in that: The transmission device (6) comprises a movable extrusion groove (6-1), an inclined extrusion ring (6-2), a rotating annular groove (6-3), an extrusion push strip (6-4) and an inclined extrusion block (6-5); the movable extrusion groove (6-1) is arranged inside the corundum core (1) and communicates with the sliding groove (4-1); the inclined extrusion ring (6-2) slides inside the movable extrusion groove (6-1); the rotating annular groove (6-3) is arranged inside the movable sleeve (5-4); the extrusion push strip (6-4) slides inside the rotating annular groove (6-3); the inclined extrusion ring (6-2) is arranged on the extrusion push strip (6-4); the inclined extrusion block (6-5) is arranged on the extrusion strip (4-5); the inclined extrusion ring (6-2) extrudes the inclined extrusion block (6-5) to push the extrusion strip (4-5) to move.

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