Armored thermocouple

Abstract

The utility model discloses an armored thermocouple, which comprises an armored body in which a thermocouple is arranged, and is characterized in that a placing cavity is arranged in the armored body, a threaded hole is arranged in the armored body, an external thread plate is arranged in the threaded hole in a threaded fit connection manner, and the external thread plate is arranged in the placing cavity. The top of the external thread plate is provided with an installation assembly used for placing a thermocouple plate part, the lower side of the threaded hole is provided with an inner cavity, and the external thread plate is internally provided with a clamping assembly which can clamp a thermocouple wire end part after the external thread plate moves downwards. A thermocouple plate part is placed on the inner cavity of the cylinder, and in the process of rotating the cylinder body, the abutting plate is utilized to gradually clamp the wire end part of the thermocouple, so that the position of the thermocouple in the armoring body is kept, and the thermocouple is prevented from loosening.

Description

Technical Field

[0001] The utility model relates to the technical field of thermocouples, in particular to an armored thermocouple. Background Art

[0002] The armored thermocouple is an armored structure installed on the outside of the thermocouple element. It is generally composed of a shell and a tube made of metal materials. When installing the thermocouple, the thermocouple connection wire is passed through the tube. The electrode part of the thermocouple can be exposed or hidden inside the tube. Then the thermocouple plate part is placed in the shell. During this process, due to the poor fixing effect between the plate part and the shell, it is easy to loosen and affect the stability of the thermocouple connection wire. People have conducted a lot of research on this. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an armored thermocouple, which can solve the above-mentioned problems in the existing technology.

[0004] The utility model is realized through the following technical scheme: an armored thermocouple of the utility model comprises an armored body, a thermocouple is arranged in the armored body, and a feature thereof is that a placement cavity is arranged in the armored body, a threaded hole is arranged in the armored body, an external threaded plate is arranged in the threaded hole for matching connection, a mounting assembly for placing a thermocouple plate part is arranged on the top of the external threaded plate, an inner cavity is arranged on the lower side of the threaded hole, and a clamping assembly is arranged in the external threaded plate for clamping the thermocouple wire end part after the external threaded plate is moved downward.

[0005] According to a further technical solution, the inner cavity is a truncated cone-shaped inner cavity.

[0006] According to a further technical solution, the mounting assembly includes a plurality of connection seats arranged on the top of the external threaded plate, a cylinder is arranged on the upper side of the connection seat, a cylindrical inner cavity is arranged in the cylinder, and a first internal hole is arranged at the bottom of the cylindrical inner cavity.

[0007] According to a further technical solution, a stepped hole is provided in the cylinder.

[0008] A further technical solution is that the clamping assembly includes a second internal hole arranged in the external thread plate, a plurality of sliding grooves are arranged in the external thread plate, a sliding block is arranged to slide in the sliding groove, an extension rod is arranged on one side of the sliding block, an abutting plate is arranged at the end of the extension rod, a spring is elastically arranged between the sliding block and the sliding groove, and a linkage structure is arranged at the bottom of the sliding block, which abuts against the inner cavity so that the sliding block moves toward the second internal hole after the external thread plate moves downward.

[0009] According to a further technical solution, the ends of the abutting plates are provided with teeth to increase friction.

[0010] According to a further technical solution, the spring is wound around the outer surface of the extension rod.

[0011] According to a further technical solution, the linkage structure includes an abutting rod arranged at the bottom of the sliding block, and the abutting rod is arranged to abut against the end wall of the inner cavity.

[0012] The beneficial effects of the utility model are:

[0013] 1. By placing the thermocouple plate part on the inner cavity of the cylinder, the abutting plate is used to gradually clamp the end of the thermocouple wire during the rotation of the cylinder, thereby maintaining the position of the thermocouple in the armored body to prevent it from loosening.

[0014] Second, the connecting seat, threaded hole, abutting rod, inner cavity, sliding block, extending rod and abutting plate are arranged in a linkage manner, so that personnel can more conveniently operate to clamp the thermocouple wire end portion when using it. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] For ease of explanation, the present invention is described in detail by the following specific embodiments and drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of an armored thermocouple of the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the internal structure of the device;

[0018] Figure 3 for Figure 2 Schematic diagram at A in the middle;

[0019] Figure 4 for Figure 1 Schematic diagram of the internal cross-section structure of the device;

[0020] Figure 5 for Figure 4 Schematic diagram at B in the middle;

[0021] Figure 6 for Figure 5 Schematic diagram at C in the middle;

[0022] In the figure, the cylinder 11, the connecting seat 12, the abutting rod 13, the inner cavity 14, the armored body 15, the threaded hole 16, the placement cavity 17, the external threaded plate 18, the first internal hole 21, the cylindrical inner cavity 22, the stepped hole 23, the slide groove 31, the spring 32, the sliding block 33, the extending rod 34, the abutting plate 35, and the second internal hole 36. DETAILED DESCRIPTION

[0023] like Figure 1-Figure 6 As shown, the utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are Figure 1 The up-down, left-right, front-back directions of the projection relationship are consistent. An armored thermocouple of the utility model includes an armored body 15, a placement cavity 17 is arranged in the armored body 15, a thermocouple plate part is placed in the placement cavity 17, the bottom of the armored body 15 is used to place the thermocouple wire end part, a threaded hole 16 is arranged in the armored body 15, an external threaded plate 18 is arranged in the threaded hole 16, a mounting component for placing the thermocouple plate part is arranged on the top of the external threaded plate 18, an inner cavity 14 is arranged on the lower side of the threaded hole 16, and a clamping component is arranged in the external threaded plate 18, which can clamp the thermocouple wire end part after the external threaded plate 18 is moved downward.

[0024] Advantageously, the inner cavity 14 is a truncated cone-shaped inner cavity.

[0025] Advantageously, the mounting assembly includes a plurality of connecting seats 12 arranged on the top of the external threaded plate 18, a cylinder 11 is arranged on the upper side of the connecting seat 12, a stepped hole 23 is arranged in the cylinder 11, and the cylinder 11 can be installed on one side of the connecting seat 12 by arranging bolts in the stepped hole 23 and threadedly connecting with the connecting seat 12, a cylindrical inner cavity 22 is arranged in the cylinder 11, a first internal hole 21 is arranged at the bottom of the cylindrical inner cavity 22, the cylindrical inner cavity 22 is used to place the thermocouple plate part, and the first internal hole 21 is used to pass the thermocouple wire end part.

[0026] Advantageously, the clamping assembly includes a second internal hole 36 arranged in the external threaded plate 18, and the second internal hole 36 is used to pass the end portion of the thermocouple wire. A plurality of slide grooves 31 are arranged in the external threaded plate 18, and a sliding block 33 is arranged to slide in the slide groove 31. An extension rod 34 is arranged on one side of the sliding block 33, and the extension rod 34 slides through the slide groove 31 and extends into the second internal hole 36. An abutting plate 35 is arranged at the end of the extension rod 34, and a spring 32 is elastically arranged between the sliding block 33 and the slide groove 31. A linkage structure is arranged at the bottom of the sliding block 33, which abuts against the inner cavity 14 so that the sliding block 33 moves toward the second internal hole 36 after the external threaded plate 18 moves downward.

[0027] Advantageously, the ends of the abutting plates 35 are provided with teeth to increase friction.

[0028] Advantageously, the spring 32 is wound around the outer surface of the extension rod 34 .

[0029] Advantageously, the linkage structure includes an abutting rod 13 disposed at the bottom of the sliding block 33 , and the abutting rod 13 is disposed to abut against the end wall of the inner cavity 14 .

[0030] When installing the thermocouple, the wire end of the thermocouple is passed through the first internal hole 21 and the second internal hole 36, and distributed along the lower side of the armor body 15 so that the electrode part of the thermocouple is located at the bottom of the armor body 15, and the thermocouple plate part is placed in the cylindrical inner cavity 22. After rotating the cylinder 11, the external threaded plate 18 is rotated. Since the external threaded plate 18 is threadedly connected with the threaded hole 16, the external threaded plate 18 gradually moves downward. Since the abutting rod 13 is set against the inclined end wall of the inner cavity 14, the abutting rod 13 drives the sliding block 33 to move toward the second internal hole 36, so that after the extension rod 34 and the abutting plate 35 move, the tooth shape at the end of the abutting plate 35 is used to abut the wire end of the thermocouple, and then the wire end on the thermocouple plate part can be installed.

[0031] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. An armored thermocouple, comprising an armored body (15), wherein a thermocouple is arranged in the armored body (15), characterized in that: The armored body (15) is provided with a placement cavity (17), the armored body (15) is provided with a threaded hole (16), the threaded hole (16) is provided with an external threaded plate (18) in a mating connection therewith, the top of the external threaded plate (18) is provided with a mounting assembly for placing a thermocouple plate part, the threaded hole (16) is provided with an inner cavity (14) at the lower side, and the external threaded plate (18) is provided with a clamping assembly capable of clamping the thermocouple wire end part after the external threaded plate (18) is moved downward.

2. An armored thermocouple according to claim 1, characterized in that: The inner cavity (14) is a truncated cone-shaped inner cavity.

3. An armored thermocouple according to claim 1, characterized in that: The mounting assembly comprises a plurality of connection seats (12) arranged on the top of the external threaded plate (18), a cylinder (11) is arranged on the upper side of the connection seat (12), a cylindrical inner cavity (22) is arranged in the cylinder (11), and a first internal hole (21) is arranged at the bottom of the cylindrical inner cavity (22).

4. An armored thermocouple according to claim 3, characterized in that: A stepped hole (23) is provided in the cylinder (11).

5. The armored thermocouple according to claim 1, characterized in that: The clamping assembly includes a second internal hole (36) arranged in the external threaded plate (18), a plurality of slide grooves (31) are arranged in the external threaded plate (18), a sliding block (33) is arranged to slide in the slide groove (31), an extension rod (34) is arranged on one side of the sliding block (33), an abutting plate (35) is arranged at the end of the extension rod (34), a spring (32) is elastically arranged between the sliding block (33) and the slide groove (31), and a linkage structure is arranged at the bottom of the sliding block (33) to abut against the inner cavity (14) so ​​that the sliding block (33) moves toward the second internal hole (36) after moving downward on the external threaded plate (18).

6. An armored thermocouple according to claim 5, characterized in that: The end of the abutting plate (35) is provided with a tooth shape.

7. An armored thermocouple according to claim 5, characterized in that: The spring (32) is wound around the outer surface of the extension rod (34).

8. An armored thermocouple according to claim 5, characterized in that: The linkage structure comprises an abutting rod (13) arranged at the bottom of the sliding block (33), and the abutting rod (13) is arranged to abut against the end wall of the inner cavity (14).

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