High-efficiency on-line clamping device for thermocouple temperature measuring line

By designing a thermocouple clamping device that includes a pressure plate, an elastomer, and a beveled boss structure, the problems of thermocouple detachment and inconvenience in disassembly and assembly during rail heat treatment are solved, achieving a fast and damage-free clamping effect, and improving operational efficiency and maintainability of the device.

CN224231106UActive Publication Date: 2026-05-12PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
Filing Date
2025-06-11
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing thermocouple clamping devices are prone to falling off during rail heat treatment and are inconvenient to disassemble and assemble, affecting operational efficiency and device maintainability.

Method used

A clamping device comprising a first pressure plate, a first elastic body, a base, a second elastic body, and a second pressure plate is designed. It achieves rapid locking through the inclined boss structure of the connecting shaft and the locking handle, uses gravity to prevent springback and loosening, and combines the elastic body and the serrated groove for positioning and fixing.

Benefits of technology

It enables rapid and non-destructive clamping of thermocouple wires, improving operational efficiency and maintainability of the device, and avoiding interference and vibration loosening of the heat treatment device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a thermocouple temperature measuring line high-efficiency on-line clamping device and metallurgical equipment, a connecting shaft transversely penetrates through a first pressing plate, a first elastic body, a base, a second elastic body and a second pressing plate which are sequentially arranged from left to right, a locking handle is arranged at the right end of the connecting shaft, and an inclined plane boss structure is arranged between the locking handle and the second pressing plate. A handle inclined plane is arranged on the contact surface of the locking handle and the inclined plane boss structure, and the locking handle rotates to change the inclined plane included angle between the inclined plane boss structure and the handle inclined plane, so that the first pressing plate and the second pressing plate are locked; the thermocouple temperature measuring wires between the first elastic body and the base and between the second elastic body and the base are fixed, the locking handle automatically locks the thermocouple temperature measuring wires through gravity, springback loosening can be prevented, the labor efficiency of operators is improved, the fixing reliability is improved, and the structure is simple.
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Description

Technical Field

[0001] This utility model relates to the field of metallurgical equipment, and in particular to a high-efficiency online clamping device for thermocouple temperature measuring wires. Background Technology

[0002] In the rail heat treatment laboratory, thermocouples are used to measure the temperature at multiple points during the rail heat treatment process. Multiple thermocouples are inserted into pre-drilled holes in the rail to measure the temperature data during the heat treatment process.

[0003] During the experiment, the rail is in a swaying state, and the thermocouple is prone to falling off. Therefore, the thermocouple needs to be clamped and fixed during the experiment. Since the rail needs to enter the heat treatment device, the entire clamping device needs to be compact in size to avoid interference with the heat treatment device.

[0004] The current laboratory thermocouple wire clamping device uses a ferrule thread for fixing and clamping, with each wire individually fixed on a fixed support. The disassembly and assembly process is very inconvenient, time-consuming and labor-intensive. Utility Model Content

[0005] The purpose of this invention is to provide an efficient online clamping device for thermocouple wires, enabling convenient, fast, and damage-free clamping of thermocouple wires, thereby improving operator efficiency and device maintainability.

[0006] To solve the above-mentioned technical problems, this utility model provides a high-efficiency online clamping device for thermocouple temperature measuring wires, including a first pressure plate, a first elastic body, a base, a second elastic body, and a second pressure plate arranged sequentially from left to right. A connecting shaft passes through the first pressure plate, the base, and the second pressure plate and is fixed in position. A locking handle is provided at the right end of the connecting shaft. A sloping boss structure is provided between the locking handle and the second pressure plate. The contact surface between the locking handle and the sloping boss structure is provided with a handle sloping surface. The locking handle can lock the first pressure plate and the second pressure plate by rotating to change the angle between the sloping boss structure and the handle sloping surface, and fix the thermocouple temperature measuring wire located between the first elastic body and the base and between the second elastic body and the base.

[0007] The second pressure plate and the inclined boss structure can be an integral structure or a separate structure.

[0008] The inclined surface of the inclined boss structure and the inclined surface of the handle have an inclination angle of 10-30 degrees.

[0009] The inclined angles of the inclined boss structure and the inclined surface of the handle are equal.

[0010] It also includes a counterweight hole located at the end of the locking handle opposite to the connecting shaft, for installing a counterweight.

[0011] Wherein, the first elastomer and the second elastomer are fluororubber elastomers or silicone rubber elastomers.

[0012] The thickness of the first elastomer and the second elastomer is 10-20 mm.

[0013] The first pressure plate and the second pressure plate are carbon structural steel pressure plates or alloy structural steel pressure plates, and the thickness of the first pressure plate and the second pressure plate is 5-10mm.

[0014] It also includes a serrated groove provided on the base facing the first pressure plate and the second pressure plate, for positioning the thermocouple temperature measuring wire.

[0015] The first elastomer and the thermocouple temperature measuring wire are configured with an interference fit, and the locking interference of the first elastomer and the thermocouple temperature measuring wire is 0.2-0.8mm.

[0016] The high-efficiency online clamping device for thermocouple temperature measuring wires provided in this embodiment of the invention has the following advantages compared with the prior art:

[0017] The thermocouple wire high-efficiency online clamping device provided in this embodiment of the utility model consists of a first pressure plate, a first elastic body, a base, a second elastic body, and a second pressure plate arranged sequentially from left to right via a connecting shaft. A locking handle is provided at the right end of the connecting shaft. A sloping boss structure is provided between the locking handle and the second pressure plate. The contact surface between the locking handle and the sloping boss structure is provided with a handle sloping surface. By rotating the locking handle, the angle between the sloping boss structure and the handle sloping surface is changed, thereby locking the first pressure plate and the second pressure plate and fixing the thermocouple wire located between the first elastic body and the base, and between the second elastic body and the base. The locking handle automatically locks using gravity, which can prevent springback and loosening. The structure is simple and realizes convenient, fast, and damage-free clamping of the thermocouple wire, improving the labor efficiency of operators and the maintainability of the device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a schematic diagram of the longitudinal section of an embodiment of the high-efficiency online clamping device for thermocouple temperature measuring wires provided by this utility model;

[0020] Figure 2 This is a schematic diagram of the overall clamping structure of an embodiment of the high-efficiency online clamping device for thermocouple temperature measuring wires provided by this utility model;

[0021] Figure 3 A schematic diagram of the locking handle structure of an embodiment of the high-efficiency online clamping device for thermocouple temperature measuring wires provided by this utility model;

[0022] Figure 4 A schematic diagram of the front clamping structure of an embodiment of the high-efficiency online clamping device for thermocouple temperature measuring wires provided by this utility model;

[0023] Among them, 10-first pressure plate, 11-first elastic body, 20-base, 31-second elastic body, 30-second pressure plate, 60-connecting shaft, 50-thermocouple temperature measuring wire, 40-locking handle, 41-handle bevel, 42-counterweight hole, 43-counterweight, 80-reset spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please refer to Figures 1-4 , Figure 1 This is a schematic diagram of the longitudinal section of an embodiment of the high-efficiency online clamping device for thermocouple temperature measuring wires provided by this utility model; Figure 2 This is a schematic diagram of the overall clamping structure of an embodiment of the high-efficiency online clamping device for thermocouple temperature measuring wires provided by this utility model; Figure 3 A schematic diagram of the locking handle structure of an embodiment of the high-efficiency online clamping device for thermocouple temperature measuring wires provided by this utility model; Figure 4 This is a schematic diagram of the front clamping structure of an embodiment of the high-efficiency online clamping device for thermocouple temperature measuring wires provided by this utility model.

[0026] In one specific embodiment, the high-efficiency online clamping device for thermocouple measuring wires includes a first pressure plate 10, a first elastic body 11, a base 20, a second elastic body 31, and a second pressure plate 30 arranged sequentially from left to right. A connecting shaft 60 passes through the first pressure plate 10, the base 20, and the second pressure plate 30 and is fixed in position. A locking handle 40 is provided at the right end of the connecting shaft 60. A sloping boss structure is provided between the locking handle 40 and the second pressure plate 30. The contact surface between the locking handle 40 and the sloping boss structure is provided with a handle sloping surface 41. The locking handle 40 can lock the first pressure plate 10 and the second pressure plate 30 and fix the thermocouple measuring wire 50 located between the first elastic body 11 and the base 20 and between the second elastic body 21 and the base 20 by rotating.

[0027] A connecting shaft 60 passes horizontally through a first pressure plate 10, a first elastic body 11, a base 20, a second elastic body 31, and a second pressure plate 30 arranged sequentially from left to right. A locking handle 40 is provided at the right end of the connecting shaft 60. A sloping boss structure is provided between the locking handle 40 and the second pressure plate 30. The contact surface between the locking handle 40 and the sloping boss structure is provided with a handle sloping surface 41. By rotating the locking handle 40, the angle between the sloping boss structure and the handle sloping surface 41 is changed, thereby locking the first pressure plate 10 and the second pressure plate 30. The thermocouple wire 50 located between the first elastic body 11 and the base 20 and between the second elastic body 21 and the base 20 is fixed. The locking handle 40 automatically locks using gravity, which can prevent springback and loosening. The structure is simple and realizes convenient, fast, and damage-free clamping of the thermocouple wire, improving the labor efficiency of operators and the maintainability of the device.

[0028] This application does not limit the connection relationship between the second pressure plate 30 and the inclined boss structure. The second pressure plate 30 and the inclined boss structure can be an integral structure or a separate structure, which can be designed as needed.

[0029] In this application, the slope angle of the inclined boss structure and the inclined surface 41 of the handle is not limited. In one embodiment, the slope angle of the inclined boss structure and the inclined surface 41 of the handle is 10-30 degrees.

[0030] Preferably, the inclined surface boss structure and the inclined surface 41 of the handle have the same inclination angle.

[0031] The inclined boss structure and the inclined angle of the handle inclined surface 41 can be set according to different rotation requirements.

[0032] In actual use, vibration may occur, and the locking handle 40 may sway from side to side, reducing the reliability of self-locking. To solve this technical problem, in one embodiment, the high-efficiency online clamping device for thermocouple temperature measuring wires further includes a counterweight hole 42 provided at the end of the locking handle 40 away from the connecting shaft 60 for installing a counterweight 43.

[0033] By providing a counterweight hole 42 at one end of the connecting shaft 60 for installing a counterweight 43, the inertia of the connecting shaft 60 during vibration is increased, thereby improving the reliability of locking.

[0034] In addition to using counterweight 43, other structures, such as locking bolts, can be used for locking to prevent loosening.

[0035] In this application, the temperature measuring wire is clamped by setting an elastomer. The thickness and material of the elastomer are not specified. The first elastomer 11 and the second elastomer 31 are fluororubber elastomers, silicone rubber elastomers, or other elastomers.

[0036] The thickness of the first elastomer 11 and the second elastomer 31 is 10-20 mm.

[0037] In this application, pressure plates are used to fix the overall structure. There are no restrictions on the material and thickness of the pressure plates. The first pressure plate 10 and the second pressure plate 30 are carbon structural steel pressure plates or alloy structural steel pressure plates. The thickness of the first pressure plate 10 and the second pressure plate 30 is 5-10mm.

[0038] In actual operation, multiple temperature measuring wires need to be clamped and fixed, which may result in the stacking of temperature measuring wires. To solve this technical problem, in one embodiment, the thermocouple temperature measuring wire high-efficiency online clamping device further includes a serrated groove provided on the base 20 facing the first pressure plate 10 and the second pressure plate 30, for positioning the thermocouple temperature measuring wire.

[0039] By positioning the thermocouple wires using serrated grooves, each temperature measuring wire can be positioned individually, avoiding stacking and improving the reliability and effectiveness of fixing.

[0040] This application does not limit the size, distribution, or number of the serrated grooves, and other shapes of grooves can also be used. Using serrated grooves can ensure the reliability of clamping and ensure that the temperature measuring wire is pressed firmly.

[0041] To further improve clamping efficiency, in one embodiment, the first elastic body 11 and the thermocouple temperature measuring wire are configured with an interference fit, and the locking interference of the first elastic body 11 and the thermocouple temperature measuring wire is 0.2-0.8mm.

[0042] By employing an interference fit connection, the reliability of the thermocouple wire clamping is ensured.

[0043] In one embodiment, the high-efficiency online clamping device for thermocouple measuring wires enables convenient, fast, and damage-free clamping of thermocouple measuring wires; improves the labor efficiency of operators; enhances the maintainability of the device; and adopts a symmetrical briquetting machine with a ramp locking structure, which can quickly clamp multiple thermocouples on both sides through pressure plates to improve work efficiency and effectively reduce the space required for the device.

[0044] It includes two pressure plates, an elastomer (attached to the pressure plates), a connecting shaft 60, a locking handle 40, a base 20, a fixed support, and a return spring 80.

[0045] For easy and quick locking, the locking handle 40 is initially inclined to fit against the boss on one side of the pressure plate. Rotating the locking handle 40 pushes the pressure plate inward; the angle of the locking bevel has self-locking properties; rotating the locking handle 40 half a turn can press the thermocouple wire, improving efficiency; the thermocouple wire passes through the pressure plate and the hole on the fixing support for initial positioning; the elastomer is attached to the pressure plate; when locking, it is positioned below, and the weight of the locking handle 40 prevents the wrench from springing back and loosening.

[0046] The reset spring 80 is located between the first pressure plate 10 and the second pressure plate 20. After clamping and fixing is completed, it automatically separates the first pressure plate 10 and the second pressure plate 20 during disassembly, thereby improving disassembly efficiency.

[0047] Improve operator efficiency; the original fixed threaded sleeve is prone to loosening under vibration conditions, but this device can avoid the above situation.

[0048] The angle of the locking ramp ranges from 10 to 30 degrees. Locking is achieved by the weight of the locking handle 40 itself. The end of the locking handle 40 has a through hole, which can be used to set a counterweight according to the working conditions. Preferably, a wrench is used as the counterweight.

[0049] The elastomer is commonly made of rubber, but fluororubber and silicone rubber are preferred to ensure good elasticity, wear resistance, and service life. The rubber thickness is 10-20mm. The pressure plate is made of steel with a thickness of 5-10mm, and carbon structural steel or alloy structural steel can be selected. The pressure plate has serrated grooves to prevent thermocouple wires from accumulating during the fixing process.

[0050] Because the diameter of the thermocouple measuring wire used remains constant, the locking distance is determined by reasonably designing the locking bevel angle and locking bevel length. The locking interference is 0.2-0.8mm, so that when clamping, the locking interference ensures the reliability of clamping through the elastic deformation of the rubber and avoids excessive clamping.

[0051] In summary, the high-efficiency online clamping device for thermocouple measuring wires provided by this utility model embodiment uses a connecting shaft to pass through a first pressure plate, a first elastic body, a base, a second elastic body, and a second pressure plate arranged sequentially from left to right. A locking handle is provided at the right end of the connecting shaft. A sloping boss structure is provided between the locking handle and the second pressure plate. The contact surface between the locking handle and the sloping boss structure is provided with a handle sloping surface. By rotating the locking handle, the angle between the sloping boss structure and the handle sloping surface is changed, thereby locking the first pressure plate and the second pressure plate and fixing the thermocouple measuring wire located between the first elastic body and the base and between the second elastic body and the base. The locking handle automatically locks using gravity, which can prevent springback and loosening. The structure is simple and realizes convenient, fast, and damage-free clamping of thermocouple measuring wires, improving the labor efficiency of operators and the maintainability of the device.

[0052] The above provides a detailed description of the high-efficiency online clamping device for thermocouple temperature measuring wires provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A high-efficiency online clamping device for thermocouple temperature measuring wires, characterized in that, The device includes, from left to right, a first pressure plate, a first elastic body, a base, a second elastic body, and a second pressure plate. A connecting shaft passes through the first pressure plate, the base, and the second pressure plate and fixes their positions. A locking handle is provided at the right end of the connecting shaft. A sloping boss structure is provided between the locking handle and the second pressure plate. The contact surface between the locking handle and the sloping boss structure is provided with a handle sloping surface. The locking handle can lock the first pressure plate and the second pressure plate by rotating to change the angle between the sloping boss structure and the handle sloping surface, and fix the thermocouple temperature measuring wire located between the first elastic body and the base, and between the second elastic body and the base.

2. The high-efficiency online clamping device for thermocouple temperature measuring wires as described in claim 1, characterized in that, The second pressure plate and the inclined boss structure can be an integral structure or a separate structure.

3. The high-efficiency online clamping device for thermocouple temperature measuring wires as described in claim 2, characterized in that, The inclined surface of the beveled boss structure and the inclined surface of the handle have an inclination angle of 10-30 degrees.

4. The high-efficiency online clamping device for thermocouple temperature measuring wires as described in claim 3, characterized in that, The inclined surface boss structure and the inclined surface of the handle have the same inclination angle.

5. The high-efficiency online clamping device for thermocouple temperature measuring wires as described in claim 1, characterized in that, It also includes a counterweight hole located at the end of the locking handle opposite to the connecting shaft for installing a counterweight.

6. The high-efficiency online clamping device for thermocouple temperature measuring wires as described in claim 1, characterized in that, The first elastomer and the second elastomer are fluororubber elastomers or silicone rubber elastomers.

7. The high-efficiency online clamping device for thermocouple temperature measuring wires as described in claim 6, characterized in that, The thickness of the first elastomer and the second elastomer is 10-20 mm.

8. The high-efficiency online clamping device for thermocouple temperature measuring wires as described in claim 7, characterized in that, The first pressure plate and the second pressure plate are carbon structural steel pressure plates or alloy structural steel pressure plates, and the thickness of the first pressure plate and the second pressure plate is 5-10mm.

9. The high-efficiency online clamping device for thermocouple temperature measuring wires as described in claim 1, characterized in that, It also includes a serrated groove provided on the base facing the first pressure plate and the second pressure plate, for positioning the thermocouple temperature measuring wire.

10. The high-efficiency online clamping device for thermocouple temperature measuring wires as described in claim 1, characterized in that, The first elastomer and the first elastomer are configured with an interference fit with the thermocouple measuring wire, and the locking interference of the first elastomer and the thermocouple measuring wire is 0.2-0.8mm.