Thermal analysis sampling assembly

Abstract

The utility model relates to a thermal analysis sampling assembly, which comprises a thermal analysis sample cup, a connecting seat, a base and a compensating lead, the thermal analysis sample cup comprises a cup body and a thermocouple assembly, and the thermocouple assembly comprises two thermocouple wires and a protective tube sleeved outside the thermocouple wires; the connecting base comprises a bearing part used for being connected with the cup body and an installation part used for being connected with the base, the connecting base is provided with two sets of connecting assemblies used for being connected with two thermocouple wires at the bottom of the cup body and two positioning columns used for being connected with positioning holes in the bottom of the cup bottom in a matched mode, and the bearing part is provided with an installation cavity. The two connecting assemblies are symmetrically arranged on the two sides of the mounting cavity respectively, a heat insulation filling layer is arranged in the mounting cavity, the compensation wire is arranged in the base, one end of the compensation wire is connected with the connecting assemblies, and the other end of the compensation wire is externally connected with an analyzer. By the adoption of the technical scheme, on one hand, the heat insulation filling layer plays a role in fixing the connecting assembly, on the other hand, heat transfer is blocked, signal data are more accurate, meanwhile, the service life is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of molten steel detection accessories, in particular to a thermal analysis sampling component. Background Art

[0002] The thermal analysis sample cup is a sensor used to measure the phase change temperature of the solidification process of molten metal in the analysis of carbon content and other indicators of molten iron. The thermal analysis sample cup transmits the temperature signal of the molten iron in the cup to the thermal analyzer for carbon and silicon content analysis of the molten iron; the thermal analysis sample cup uses thermocouple measurement, and the ends of two conductors of different components (called thermocouple wires or thermoelectrodes) are connected to form a loop. When the temperatures of the two junctions are different, an electromotive force will be generated in the loop. This phenomenon is called the thermoelectric effect, and this electromotive force is called thermoelectric potential. Thermocouples use this principle to measure temperature. The ends of the two thermocouple wires of different components are connected, and the rest of the parts should be well insulated. If the rest of the parts are in contact, a short circuit will occur, and analysis cannot be performed; in the existing thermal analysis sample cup, the two thermocouple wires extend from the bottom of the cup body and may touch each other when bent to the sides of the cup body; at the same time, the structure of the existing thermal analysis sampling device is unstable. Utility Model Content

[0003] In summary, in order to overcome the deficiencies of the prior art, the utility model provides a thermal analysis sampling assembly.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thermal analysis sampling component, comprising a thermal analysis sample cup, a connecting seat, a base and a compensation wire, the thermal analysis sample cup comprising a cup body and a thermocouple assembly, the thermocouple assembly comprising two thermocouple wires and a protective tube sleeved outside the thermocouple wires; the connecting seat comprises a receiving portion for connecting to the cup body and a mounting portion for connecting to the base, the connecting seat is provided with two groups of connecting components for connecting to the two thermocouple wires at the bottom of the cup body and two positioning columns for matching and connecting to the positioning holes at the bottom of the cup bottom, the receiving portion is provided with an installation cavity, the two groups of connecting components are symmetrically arranged on both sides of the installation cavity, and a heat-insulating filling layer for fixing the connecting component is arranged in the installation cavity, the compensation wire is arranged in the base and one end is connected to the connecting component, and the other end is used for an external analyzer.

[0005] By adopting the above technical solution, the connecting seat is arranged above the base, and the positioning hole of the cup body is aligned with the positioning column of the connecting seat and then plugged into each other, so that the two are stably connected. At the same time, an installation cavity is arranged on the receiving part, and an insulating filling layer (after cooling and condensation) is arranged in the installation cavity. On the one hand, the insulating filling layer fixes the connecting component, and on the other hand, it blocks the heat transfer of the thermal analysis sample cup to the high temperature when receiving molten iron, thereby protecting the connecting seat and the connecting component, making the collected signal data more accurate, and at the same time extending the service life of the connecting seat and the connecting component, and reducing the maintenance cost.

[0006] The utility model is further provided with: the connecting assembly includes a connecting rod, the connecting rod includes a first connecting part which is arranged in an inverted "concave" shape in the installation cavity and an extension part which passes through the installation part and is connected to the compensation wire in the base, the installation cavity is provided with mounting holes at both ends corresponding to the first connecting part, the installation hole on one side of the installation cavity corresponding to the extension part is a through hole with openings at both ends, the installation cavity is provided with mounting holes at both ends corresponding to the first connecting part, the installation hole on one side of the installation cavity corresponding to the extension part is a through hole with openings at both ends, and the bottom of the cup body is provided with a mounting recess, and the width of the mounting recess is adapted to the spacing between the connecting rods on both sides.

[0007] By adopting the above technical solution, the two connecting rods are engaged with the mounting recess, which further enhances the stability of the connection. Moreover, compared with a single column, the first connecting part is in an inverted "concave" shape, which enhances the length of the middle section of the first connecting part. Even if the thermocouple wire is offset, it is still in contact with the first connecting part to maintain smooth transmission of the signal. At the same time, the first connecting part and the extension part are integrally formed and quickly plugged into the mounting hole. Only the thermal insulation filler (for example, thermal insulation glue, which forms a thermal insulation filling layer after solidification) needs to be filled to complete the fixed assembly. The structure is simple, with few accessories and processes. It can be assembled quickly, with high production efficiency and low cost.

[0008] The utility model is further configured as follows: the protection tube passes through the two side walls of the cup body that are relatively arranged, the two ends of the thermocouple wire located outside the protection tube are free ends, the two free ends extend along the side walls toward the bottom of the cup body, are bent, and then are bent along the side walls of the mounting recess, and are bent again, the two free ends of the thermocouple wire are arranged at intervals, the connecting assembly also includes a connecting piece arranged in the middle of the first connecting part, the accommodating cavity is provided with an installation slot at a position corresponding to the connecting piece, one end of the connecting piece is inserted into the installation slot, and the other end is provided with a second connecting part that abuts against the middle section of the first connecting part.

[0009] By adopting the above technical solution, compared with the thermocouple wires being arranged on the center line of the cup body axis, a two-end type is adopted, which can reduce the risk of short circuit, and an installation slot is provided to facilitate the insertion of the connecting piece. The setting of the connecting piece further increases the conduction area of ​​the connecting components at the two poles, ensuring the precision and stability of the conduction.

[0010] The utility model is further configured that positioning parts for positioning the connecting piece are arranged on both sides of the inner wall of the installation slot.

[0011] By adopting the above technical solution and providing the positioning portion, the connection piece can be more stable during plug-in assembly and the assembly is more convenient.

[0012] The utility model is further configured as follows: a limiting groove for limiting the thermocouple wire is arranged at a position corresponding to the thermocouple wire at the bottom of the cup body, and the limiting groove is communicated with the installation recess.

[0013] By adopting the above technical solution, the stability of the thermal analysis sample cup is further enhanced, and the plug-in matching between the thermocouple wire and the connecting component is made more accurate and stable.

[0014] The utility model is further configured as follows: the positions of the mounting portion corresponding to the two extension portions are respectively provided with a positive pole mark and a negative pole mark, the receiving portion is provided in a cubic shape, the mounting portion is provided in a cylindrical shape, the width of the receiving portion is greater than the diameter of the mounting portion, and the diameter of the mounting portion is adapted to the inner diameter of the base.

[0015] By adopting the above technical solution, the connection is made more stable and the direction of the hot electrode is convenient to confirm.

[0016] The specific implementation of the utility model is described below in conjunction with the drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of an embodiment of the utility model;

[0018] Figure 2 It is a partial structural stereogram of an embodiment of the utility model;

[0019] Figure 3 The connection seat of the utility model embodiment is three-dimensional Figure 1 ;

[0020] Figure 4 The connection seat of the utility model embodiment is three-dimensional Figure 2 ;

[0021] Figure 5 A three-dimensional diagram of a thermal analysis sample cup according to an embodiment of the utility model;

[0022] Figure numerals: 1. Thermal analysis sample cup, 11. Cup body, 111. Mounting recess, 112. Limiting groove, 12. Thermocouple assembly, 121. Thermocouple wire, 122. Protective tube, 2. Connecting seat, 21. Receiving part, 211. Positioning column, 212. Mounting cavity, 213. Mounting hole, 214. Mounting slot, 215. Positioning part, 22. Mounting part, 23. Insulating filling layer, 3. Base, 4. Compensating wire, 5. Connecting assembly, 51. Connecting rod, 511. First connecting part, 512. Extension part, 52. Connecting piece, 521. Second connecting part. DETAILED DESCRIPTION

[0023] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0024] See attached Figure 1-5 A thermal analysis sampling assembly disclosed in this embodiment includes a thermal analysis sample cup 1, a connecting seat 2, a base 3 and a compensation wire 4. The thermal analysis sample cup 1 includes a cup body 11 and a thermocouple assembly 12. The thermocouple assembly 12 includes two thermocouple wires and a protective tube 122 sleeved outside the thermocouple wires 121; the connecting seat 2 includes a receiving portion 21 for connecting to the cup body 11 and a mounting portion 22 for connecting to the base 3. The connecting seat 2 is provided with two groups of connecting components 5 for connecting to the two thermocouple wires at the bottom of the cup body 11 and two positioning columns 211 for matching and connecting with the positioning holes at the bottom of the cup bottom. The receiving portion 21 is provided with a mounting cavity 212. The two groups of connecting components 5 are symmetrically arranged on both sides of the mounting cavity 212. A heat-insulating filling layer 23 for fixing the connecting component 5 is arranged in the mounting cavity 212. The compensation wire 4 is arranged in the base 3 and one end is connected to the connecting component 5, and the other end is used for externally connecting to an analyzer.

[0025] This embodiment is further configured as follows: the connecting component 5 includes a connecting rod 51, the connecting rod 51 includes a first connecting portion 511 in an inverted "concave" shape arranged in the installation cavity 212 and an extension portion 512 passing through the installation portion 22 and connected to the compensation wire 4 in the base 3, the installation cavity 212 is provided with mounting holes 213 at both ends corresponding to the first connecting portion 511, the installation hole 213 on one side of the extension portion 512 in the installation cavity 212 is a through hole with openings at both ends, and the bottom of the cup body 11 is provided with a mounting recess 111, and the width of the mounting recess 111 is adapted to the spacing between the connecting rods 51 on both sides.

[0026] This embodiment is further configured as follows: the protection tube 122 passes through the two side walls of the cup body 11 that are opposite to each other, and the two ends of the thermocouple wire outside the protection tube 122 are free ends, and the two free ends extend along the side walls toward the bottom of the cup body 11 and are bent and then bent along the side walls of the mounting recess 111, and are spaced apart from each other. The connecting component 5 also includes a connecting piece 52 that is arranged in the middle of the first connecting part 511, and a mounting slot 214 is provided at a position of the accommodating cavity corresponding to the connecting piece 52, and one end of the connecting piece 52 is inserted into the mounting slot 214, and the other end is provided with a second connecting part 521 that abuts against the middle section of the first connecting part 511.

[0027] This embodiment further provides that: positioning portions 215 for positioning the connecting piece 52 are provided on both sides of the inner wall of the installation slot 214 .

[0028] This embodiment further provides that: a limiting groove 112 for limiting the thermocouple wire is provided at the bottom of the cup body 11 at a position corresponding to the thermocouple wire, and the limiting groove 112 is communicated with the mounting recess 111 .

[0029] This embodiment is further configured as follows: the positions of the mounting portion 22 corresponding to the two extension portions 512 are respectively provided with a positive pole mark and a negative pole mark, the receiving portion 21 is provided in a cubic shape, the mounting portion 22 is provided in a cylindrical shape, the width of the receiving portion 21 is greater than the diameter of the mounting portion 22, and the diameter of the mounting portion 22 is adapted to the inner diameter of the base 3.

[0030] The above-mentioned “between” does not only refer to directions and positions, but also includes the meaning of the interaction between different parts. The above-mentioned “upper and lower” are only relative descriptions for the convenience of description and understanding, and other possibilities are not excluded.

[0031] Although this article uses more terms such as thermal analysis sample cup 1, cup body 11, mounting recess 111, limiting groove 112, thermocouple assembly 12, thermocouple wire 121, protective tube 122, connecting seat 2, receiving portion 21, positioning column 211, mounting cavity 212, mounting hole 213, mounting slot 214, positioning portion 215, mounting portion 22, thermal insulation filling layer 23, base 3, compensation wire 4, connecting assembly 5, connecting rod 51, first connecting portion 511, extension portion 512, connecting piece 52, second connecting portion 521, etc., it does not exclude the possibility of using other terms. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A thermal analysis sampling assembly, characterized in that: It includes a thermal analysis sample cup, a connecting seat, a base and a compensation wire. The thermal analysis sample cup includes a cup body and a thermocouple assembly. The thermocouple assembly includes two thermocouple wires and a protective tube sleeved outside the thermocouple wires; the connecting seat includes a receiving portion for connecting to the cup body and a mounting portion for connecting to the base. The connecting seat is provided with two groups of connecting components for connecting to the two thermocouple wires at the bottom of the cup body and two positioning columns for matching and connecting with the positioning holes at the bottom of the cup bottom. The receiving portion is provided with a mounting cavity. The two groups of connecting components are symmetrically arranged on both sides of the mounting cavity. A heat-insulating filling layer for fixing the connecting component is arranged in the mounting cavity. The compensation wire is arranged in the base and one end is connected to the connecting component, and the other end is used for an external analyzer.

2. A thermal analysis sampling assembly according to claim 1, characterized in that: The connecting assembly includes a connecting rod, which includes a first connecting portion in an inverted "concave" shape arranged in the installation cavity and an extension portion passing through the installation portion and connected to the compensation wire in the base. The installation cavity is provided with mounting holes at both ends corresponding to the first connecting portion, and the mounting hole on one side of the extension portion in the installation cavity is a through hole with openings at both ends. The cup body is provided with a mounting recess at the bottom, and the width of the mounting recess is adapted to the spacing between the connecting rods on both sides.

3. A thermal analysis sampling assembly according to claim 2, characterized in that: The protection tube passes through the two side walls of the cup body that are arranged opposite to each other, and the two ends of the thermocouple wire outside the protection tube are free ends, and the two free ends extend along the side walls toward the bottom of the cup body, bend, and then bend along the side walls of the mounting recess, and are spaced apart from each other. The connecting assembly also includes a connecting piece arranged in the middle of the first connecting part, and the accommodating cavity is provided with an installing slot at a position corresponding to the connecting piece, one end of the connecting piece is inserted into the installing slot, and the other end is provided with a second connecting part that abuts against the middle section of the first connecting part.

4. A thermal analysis sampling assembly according to claim 3, characterized in that: Positioning parts for positioning the connecting piece are arranged on both sides of the inner wall of the installation slot.

5. A thermal analysis sampling assembly according to claim 3, characterized in that: A limiting groove for limiting the thermocouple wire is arranged at a position corresponding to the thermocouple wire at the bottom of the cup body, and the limiting groove is communicated with the installation recess.

6. A thermal analysis sampling assembly according to claim 2, characterized in that: The mounting portion is provided with a positive pole mark and a negative pole mark at positions corresponding to the two extension portions, respectively; the receiving portion is provided in a cubic shape, the mounting portion is provided in a cylindrical shape, the receiving portion has a width greater than a diameter of the mounting portion, and the diameter of the mounting portion is adapted to an inner diameter of the base.

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