Adjustable telescoping length thermocouple

Abstract

The utility model relates to temperature measurement sensor technical field discloses a thermocouple of adjustable telescopic length, including fixed base, temperature measurement component and adjusting assembly, the outer wall of fixed base is set up adjusting groove along its length direction, temperature measurement component sets up in fixed base, and both ends of temperature measurement component all extend to the outside of fixed base, adjusting assembly includes fixed sleeve and adjusting block, fixed sleeve is fixed in temperature measurement component, and fixed sleeve is slidably connected in fixed base, adjusting block is slidably connected in adjusting groove, and one end of adjusting block is fixed in fixed sleeve, and the other end extends to the outside of fixed base, the utility model discloses through adjusting block drive fixed sleeve and temperature measurement component along the length direction of fixed base sliding, realizes thermocouple temperature measurement end to stretch out the stepless regulation of length, adapts the temperature measurement scene of different depth, and the position is locked after adjusting through the inlaying of locating screw and friction face, and the structure is simple, convenient operation, positioning is reliable.

Description

Technical Field

[0001] This utility model relates to the field of temperature measurement sensor technology, and more specifically, to a thermocouple with adjustable telescopic length. Background Technology

[0002] Thermocouples are among the most widely used temperature sensors in industrial temperature measurement. Based on the Seebeck effect, they convert the measured temperature into a thermoelectric potential signal, which is then transmitted to a display instrument or control system via a compensating wire. They are widely used in metallurgy, chemical industry, power, heat treatment, and equipment temperature control.

[0003] In existing technologies, the installation length of thermocouples is mostly a fixed specification, manufactured at the factory according to a specific insertion depth, which is difficult to adapt to the changing on-site installation conditions. Some adjustable structures use a threaded insertion method to change the extension length, but the thermocouple body rotates during the threaded adjustment process, which can easily cause the compensating wire to twist and the solder joint to loosen under stress, affecting the temperature measurement accuracy and long-term operational stability. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0005] Therefore: The first aspect of this utility model proposes an adjustable telescopic thermocouple, including a fixed base, a temperature measuring component, and an adjusting component. The outer wall of the fixed base has an adjusting groove along its length direction; the temperature measuring component is disposed on the fixed base, and both ends of the temperature measuring component extend to the outside of the fixed base; the adjusting component includes a fixed sleeve and an adjusting block. The fixed sleeve is fixed to the temperature measuring component and is slidably fitted to the fixed base; the adjusting block is slidably fitted in the adjusting groove, and one end of the adjusting block is fixed to the fixed sleeve, while the other end extends to the outside of the fixed base.

[0006] This invention proposes an adjustable telescopic thermocouple. During the adjustment phase, the positioning screw is loosened so that its end is disengaged from the friction surface of the fixed groove. The adjusting block is then pushed to slide along the length of the adjusting groove, causing the fixed sleeve and the thermocouple fixed thereto to move synchronously. This changes the length of the thermocouple extending out of the fixed seat. The depth of the thermocouple inserted into the device can be determined by referring to the scale lines. After adjustment, the positioning screw is tightened so that its end presses against the friction surface of the bottom wall of the fixed groove, locking the current position by friction.

[0007] 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

[0008] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model; Figure 2 This is a cross-sectional structural diagram of one embodiment of the present invention; Figure 3 This is a schematic diagram of the fixing base structure in one embodiment of the present utility model; Figure 4 This is a schematic diagram of the temperature measuring component structure in one embodiment of the present invention.

[0009] in, Figures 1 to 4 The correspondence between the reference numerals and component names in the attached drawings is as follows: 100 fixed base; 400 graduation mark; 500 sealing ring; 200 temperature sensing element, 210 thermocouple, 220 flexible cable, 230 insulating tube; 300 Adjustment component, 310 Fixing sleeve, 320 Adjustment block, 330 Adjustment groove, 340 Fixing block, 350 Fixing groove, 360 Positioning screw. Detailed Implementation

[0010] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0011] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0012] Please see Figures 1 to 4 An adjustable-length thermocouple is provided, comprising a fixed base 100, a temperature measuring component 200, and an adjusting component 300. The outer wall of the fixed base 100 has an adjusting groove 330 along its length. The temperature measuring component 200 is disposed on the fixed base 100, and both ends of the temperature measuring component 200 extend to the outside of the fixed base 100. The adjusting component 300 includes a fixed sleeve 310 and an adjusting block 320. The fixed sleeve 310 is fixed to the temperature measuring component 200 and is slidably fitted to the fixed base 100. The adjusting block 320 is slidably fitted in the adjusting groove 330, and one end of the adjusting block 320 is fixed to the fixed sleeve 310, while the other end extends to the outside of the fixed base 100.

[0013] In this embodiment: The outer wall of the fixed base 100 is provided with an adjustment groove 330 along its length; the adjustment groove 330 is a through groove that passes through the fixed base 100 and provides sliding guidance for the adjustment block 320.

[0014] The temperature measuring component 200 is disposed on the fixed base 100, and both ends of the temperature measuring component 200 extend to the outside of the fixed base 100.

[0015] The fixing sleeve 310 is fixed to the temperature measuring component 200, and the fixing sleeve 310 is slidably fitted to the fixing seat 100; the outer wall of the fixing sleeve 310 is clearance fitted to the inner wall of the fixing seat 100.

[0016] The adjusting block 320 is slidably fitted in the adjusting groove 330, and one end of the adjusting block 320 is fixed to the fixed sleeve 310, while the other end extends to the outside of the fixed base 100. By moving the adjusting block 320 that extends to the outside, the fixed sleeve 310 and the temperature measuring component 200 can be moved as a whole, thereby adjusting the extension length of the thermocouple 210.

[0017] Please see Figure 2 In some embodiments of this utility model, the temperature measuring component 200 includes a thermocouple 210, a flexible cable 220, and an insulating tube 230. A portion of the thermocouple 210 is disposed inside the fixed base 100, and another portion of the thermocouple 210 extends to the outside of the fixed base 100. The flexible cable 220 is connected to the second end of the thermocouple 210 and is used to transmit the electrical signal of the thermocouple 210. The insulating tube 230 is fixed to the outer wall of the connection between the thermocouple 210 and the flexible cable 220 and is used for insulation at the connection between the thermocouple 210 and the flexible cable 220.

[0018] In this embodiment: One part of the thermocouples 210 is disposed inside the mounting base 100, and the other part of the thermocouples 210 extends to the outside of the mounting base 100.

[0019] The flexible cable 220 is connected to the second end of the thermocouple 210 and is used to transmit the electrical signal of the thermocouple 210. The flexible cable 220 has bendable characteristics and can bend along with the thermocouple 210 during axial adjustment without limiting the adjustment stroke, while ensuring stable transmission of electrical signals.

[0020] The insulating tube 230 is fixed to the outer wall of the connection between the thermocouple 210 and the flexible cable 220, and is used for insulation at the connection between the thermocouple 210 and the flexible cable 220; the insulating tube 230 improves the connection strength at the connection between the thermocouple 210 and the flexible cable 220.

[0021] Please see Figure 1In some embodiments of this utility model, the outer wall of the fixed base 100 is provided with a fixed groove 350 along its length direction, and the bottom wall of the fixed groove 350 is provided with a friction surface. The fixed groove 350 is arranged parallel to the adjustment groove 330. The adjustment assembly 300 also includes a fixed block 340 and a positioning screw 360. The fixed block 340 is fixed to the end of the adjustment block 320 away from the fixed sleeve 310. The positioning screw 360 is threaded to the fixed block 340, and the end of the positioning screw 360 near the fixed groove 350 is in contact with the friction surface.

[0022] In this embodiment: The outer wall of the fixed base 100 is provided with a fixed groove 350 along its length. The bottom wall of the fixed groove 350 is provided with a friction surface. The fixed groove 350 is arranged parallel to the adjustment groove 330. The friction surface can be knurled, sandblasted or toothed to increase the surface roughness and provide a friction locking basis for the positioning screw 360.

[0023] The fixing block 340 is fixed to the end of the adjusting block 320 away from the fixing sleeve 310.

[0024] The positioning screw 360 is threaded to the fixing block 340, and one end of the positioning screw 360 near the fixing groove 350 is in contact with the friction surface. When the positioning screw 360 is tightened, its end presses against the friction surface, and the resulting friction prevents the fixing block 340, adjusting block 320, fixing sleeve 310 and thermocouple 210 from sliding as a whole.

[0025] Please see Figure 3 In some embodiments of this utility model, the thermocouple with adjustable telescopic length also includes several scale lines 400. The several scale lines 400 are spaced apart along the length direction of the adjustment groove 330 on the outer wall of the fixed base 100 to indicate the length of the first end of the thermocouple 210 extending out of the fixed base 100.

[0026] In this embodiment: Several scale lines 400 are spaced along the length of the adjustment groove 330 on the outer wall of the fixed base 100 to indicate the length of the first end of the thermocouple 210 extending out of the fixed base 100; the current extension length of the thermocouple 210 can be read directly, which facilitates quick and accurate adjustment under different temperature measurement depth requirements and avoids repeated trial installation and measurement.

[0027] Please see Figure 2 In some embodiments of this utility model, the thermocouple with adjustable telescopic length also includes a sealing ring 500. The sealing ring 500 is fixed to the inner wall of the fixing base 100, and the inner wall of the sealing ring 500 is attached to the outer wall of the thermocouple 210 to fill the gap between the thermocouple 210 and the fixing base 100.

[0028] In this embodiment: The sealing ring 500 is fixed to the inner wall of the fixing base 100, and the inner wall of the sealing ring 500 is attached to the outer wall of the thermocouple 210 to fill the gap between the thermocouple 210 and the fixing base 100; the sealing ring 500 prevents external dust, water vapor and corrosive gases from entering the interior of the fixing base 100.

[0029] Please see Figure 2 In some embodiments of this utility model, the adjusting block 320 is welded and fixed to the fixing sleeve 310, and the fixing sleeve 310 is fixed to the outer wall of the thermocouple 210.

[0030] In this embodiment: The adjusting block 320 is welded and fixed to the fixed sleeve 310, and the fixed sleeve 310 is fixed to the outer wall of the thermocouple 210.

[0031] In the claims, description, and accompanying drawings of this utility model, the term "plural" refers to two or more objects. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description process, and are not intended to indicate or imply that the device or element referred to must have the described specific orientation, or be constructed and operated in a specific orientation. Therefore, these descriptions should not be construed as limitations on this utility model. The terms "connect," "install," "fix," etc., should be interpreted broadly. For example, "connect" can be a fixed connection between multiple objects, a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects or an indirect connection between multiple objects through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood based on the specific circumstances described above.

[0032] In the claims, description, and drawings of this utility model, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In the claims, description, and drawings of this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A thermocouple with adjustable telescopic length, characterized in that, include: A fixing base (100) has an adjustment groove (330) on its outer wall along its length. A temperature measuring component (200) is disposed on the fixed base (100), and both ends of the temperature measuring component (200) extend to the outside of the fixed base (100); Adjustment assembly (300), the adjustment assembly (300) includes a fixed sleeve (310) and an adjustment block (320); The fixing sleeve (310) is fixed to the temperature measuring component (200), and the fixing sleeve (310) is slidably fitted to the fixing base (100). The adjusting block (320) is slidably fitted in the adjusting groove (330), and one end of the adjusting block (320) is fixed to the fixing sleeve (310), while the other end extends to the outside of the fixing seat (100).

2. The thermocouple with adjustable telescopic length according to claim 1, characterized in that, The temperature measuring component (200) includes: Thermocouple (210), a portion of which is disposed inside the mounting base (100), and another portion of which extends to the outside of the mounting base (100); A flexible cable (220) is connected to the second end of the thermocouple (210) and is used to transmit the electrical signal of the thermocouple (210); An insulating tube (230) is fixed to the outer wall of the connection between the thermocouple (210) and the flexible cable (220) for insulation of the connection between the thermocouple (210) and the flexible cable (220).

3. The thermocouple with adjustable telescopic length according to claim 1, characterized in that, The outer wall of the fixed base (100) is provided with a fixing groove (350) along its length direction. The bottom wall of the fixing groove (350) is provided with a friction surface. The fixing groove (350) is arranged parallel to the adjusting groove (330). The adjusting assembly (300) further includes: A fixing block (340) is fixed to the end of the adjusting block (320) away from the fixing sleeve (310); A positioning screw (360) is threadedly connected to the fixing block (340), and one end of the positioning screw (360) near the fixing groove (350) is in contact with the friction surface.

4. The thermocouple with adjustable telescopic length according to claim 2, characterized in that, The thermocouple with adjustable telescopic length also includes: Several scale lines (400) are spaced apart on the outer wall of the fixing seat (100) along the length direction of the adjustment groove (330) to indicate the length of the first end of the thermocouple (210) extending out of the fixing seat (100).

5. The thermocouple with adjustable telescopic length according to claim 2, characterized in that, The thermocouple with adjustable telescopic length also includes: A sealing ring (500) is fixed to the inner wall of the fixing seat (100). The inner wall of the sealing ring (500) is attached to the outer wall of the thermocouple (210) to fill the gap between the thermocouple (210) and the fixing seat (100).

6. The thermocouple with adjustable telescopic length according to claim 2, characterized in that, The adjusting block (320) is welded and fixed to the fixing sleeve (310), and the fixing sleeve (310) is fixed to the outer wall of the thermocouple (210).

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