Thermocouple joint

Abstract

The utility model discloses a thermocouple joint which comprises a first sleeve, one end of the first sleeve is fixedly connected with a thermocouple body, a cable is arranged in the first sleeve, one end of the cable is connected with an electrical component in the thermocouple body, and a fixing plate is fixedly connected in the first sleeve. The side wall of the fixing plate is fixedly connected with a plurality of conductive clamping sleeves, one end of each conductive clamping sleeve penetrates through the side wall of the fixing plate, a plurality of cable cores in the cable are fixedly connected to the side wall of one end of each conductive clamping sleeve, and one end of the first sleeve is connected with a second sleeve through a fixing device. According to the utility model, under the mutual cooperation of the extrusion plate, the conductive sheet, the conductive clamping sleeve, the limiting ring and other parts, the cable core of the cable is rapidly connected in a plugging manner, and the connection part of the cable is conveniently and rapidly installed and detached, so that the thermocouple is conveniently detached, maintained or replaced, and the thermocouple is convenient and rapid to use and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of thermocouples, in particular to a thermocouple joint. Background Technique

[0002] At present, when the extension wire joint of the in-core thermocouple fails in most domestic industrial plants, a 1595+ special maintenance joint provided by a French manufacturer is generally used for replacement. This joint comes with an armored lead wire made of the same material as the in-core thermocouple extension wire. After the original faulty joint is cut, spot welding is used to connect the two core wires respectively stripped from the armored lead wire of the 1595+ special maintenance joint and the thermocouple extension wire. The disadvantages of this maintenance joint are that the replacement steps are cumbersome, the welding risk is relatively high, and the cost is relatively high.

[0003] However, in the prior art, the connection of the wire cores of the cables is carried out by welding. The welding steps are cumbersome, and it is extremely inconvenient when the thermocouple wire cores need to be replaced or the thermocouple connection wires need to be removed, which increases the working difficulty and labor cost of thermocouple maintenance and repair. Content of the Utility Model

[0004] The utility model provides a thermocouple joint to solve the problems raised in the above background technique.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A thermocouple joint includes a first sleeve. One end of the first sleeve is fixedly connected to a thermocouple body. A cable is arranged in the first sleeve. One end of the cable is electrically connected to the electrical components inside the thermocouple body. A fixing plate is fixedly connected inside the first sleeve. A plurality of conductive ferrules are fixedly connected to the side wall of the fixing plate. One end of each of the plurality of conductive ferrules penetrates through the side wall of the fixing plate. A plurality of wire cores inside the cable are respectively fixedly connected to one end side wall of each conductive ferrule. One end of the first sleeve is connected to a second sleeve through a fixing device. An installation plate is fixedly connected to the inner side wall of the second sleeve. A plurality of conductive sheets are fixedly connected to the side wall of the installation plate. One end of each of the plurality of conductive sheets is located inside each of the plurality of conductive ferrules. One end of each of the plurality of conductive sheets penetrates through the installation plate. An extension wire is arranged inside the second sleeve. A plurality of wire cores inside the extension wire are respectively fixedly connected to one end side wall of each conductive sheet. Both the installation plate and the fixing plate are made of insulating materials.

[0007] As a further improvement of this technical solution: The fixing device includes a fixing cylinder. The fixing cylinder is movably connected to the outer side wall of the first sleeve. Internal threads are provided on the inner side wall of the fixing cylinder. A limiting ring is fixedly connected to the outer side wall of one end of the first sleeve. External threads are provided on the outer side wall of one end of the second sleeve. The external threads are adapted to the internal threads on the inner side wall of the fixing cylinder.

[0008] As a further improvement of this technical solution: anti-slip patterns are provided on the outer side wall of the fixed cylinder.

[0009] As a further improvement of this technical solution: a spring is fixedly connected to the top of each conductive card sleeve, an extrusion plate is fixedly connected to the bottom of each spring, both ends of each extrusion plate are arc-shaped, and the bottom of each extrusion plate respectively abuts against the top side wall of each conductive sheet.

[0010] As a further improvement of this technical solution: the plurality of springs and the extrusion plates are all made of iron materials.

[0011] As a further improvement of this technical solution: the plurality of conductive sheets and the conductive card sleeves are all made of copper materials.

[0012] Compared with the prior art, the beneficial effects of the present utility model are: through the mutual cooperation of components such as the extrusion plate, the conductive sheet, the conductive card sleeve, and the limit ring, the device quickly connects the wire core of the cable by means of insertion, facilitating the quick installation and disassembly of the connection of the cable, thereby facilitating the disassembly, repair or replacement of the thermocouple, being convenient and fast, and having high practicability.

[0013] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly and implement it in accordance with the content of the specification, the following uses the preferred embodiments of the present utility model and combines the accompanying drawings to describe in detail as follows. The specific implementation manners of the present utility model are given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings described herein are used to provide a further understanding of the present utility model, form a part of this application, and the schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0015] Figure 1 is a front view sectional structure schematic diagram of a thermocouple joint proposed by the present utility model;

[0016] Figure 2 is a front view structure schematic diagram of a thermocouple joint proposed by the present utility model;

[0017] Figure 3 is a front view sectional structure schematic diagram of a thermocouple joint after connection proposed by the present utility model;

[0018] Figure 4 is Figure 3 a partial enlarged structure schematic diagram of A in

[0019] Figure 5 A three-dimensional structural schematic diagram of a first sleeve and a second sleeve in a thermocouple joint proposed by the present utility model.

[0020] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0021] 1. Thermocouple body; 2. Cable; 3. First sleeve; 4. Fixed cylinder; 5. Conductive ferrule; 6. Limit ring; 7. Conductive sheet; 8. Mounting plate; 9. External thread; 10. Extension wire; 11. Second sleeve; 12. Fixed plate; 13. Spring; 14. Extrusion plate. Specific embodiments

[0022] The principles and features of the present utility model will be described below with reference to the accompanying drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model. In the following paragraphs, the present utility model will be described more specifically by way of example with reference to the accompanying drawings. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise scales, only for the purpose of facilitating and clearly assisting in explaining the purpose of the embodiments of the present utility model.

[0023] It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0025] Please refer to Figures 1-5, in the embodiment of the present utility model, a thermocouple joint includes a first sleeve 3. One end of the first sleeve 3 is fixedly connected to a thermocouple body 1. A cable 2 is arranged inside the first sleeve 3. One end of the cable 2 is connected to the electrical components inside the thermocouple body 1. A fixing plate 12 is fixedly connected inside the first sleeve 3. A plurality of conductive sleeves 5 are fixedly connected to the side wall of the fixing plate 12. One end of each of the plurality of conductive sleeves 5 penetrates through the side wall of the fixing plate 12. A plurality of wire cores inside the cable 2 are respectively fixedly connected to the side wall of one end of each conductive sleeve 5. One end of the first sleeve 3 is connected to a second sleeve 11 through a fixing device. An installation plate 8 is fixedly connected to the inner side wall of the second sleeve 11. A plurality of conductive sheets 7 are fixedly connected to the side wall of the installation plate 8. One end of each of the plurality of conductive sheets 7 is respectively located inside the plurality of conductive sleeves 5. One end of each of the plurality of conductive sheets 7 penetrates through the installation plate 8. An extension wire 10 is arranged inside the second sleeve 11. A plurality of wire cores inside the extension wire 10 are respectively fixedly connected to the side wall of one end of each conductive sheet 7. Both the installation plate 8 and the fixing plate 12 are made of insulating materials.

[0026] Please refer to Figures 1-3 , Figure 5 , the fixing device includes a fixing cylinder 4. The fixing cylinder 4 is movably connected to the outer side wall of the first sleeve 3. Internal threads are provided on the inner side wall of the fixing cylinder 4. A limiting ring 6 is fixedly connected to the outer side wall of one end of the first sleeve 3. External threads 9 are provided on the outer side wall of one end of the second sleeve 11. The external threads 9 are adapted to the internal threads on the inner side wall of the fixing cylinder 4. By turning the fixing cylinder 4, the fixing cylinder 4 is threadedly connected to the outer side wall of the external threads 9. The inner side wall of the fixing cylinder 4 will squeeze the limiting ring 6, thereby driving the first sleeve 3 and the second sleeve 11 to approach each other, and the first sleeve 3 and the second sleeve 11 can be connected and fixed.

[0027] Please refer to Figures 1-3 , Figure 5 , anti-slip threads are provided on the outer side wall of the fixing cylinder 4 to prevent slipping when turning the fixing cylinder 4.

[0028] Please refer to Figure 1 , Figures 3-4 , a spring 13 is fixedly connected to the top inside each conductive sleeve 5. An extrusion plate 14 is fixedly connected to the bottom of each spring 13. Both ends of each extrusion plate 14 are arc-shaped. The bottom of each extrusion plate 14 respectively abuts against the top side wall of each conductive sheet 7. Through the arranged extrusion plate 14, the conductive sheet 7 can be extruded, so that the conductive sheet 7 is in more stable contact with the conductive sleeve 5, thereby maintaining good electrical conductivity.

[0029] Please refer to Figure 1 , Figures 3-4 , the plurality of springs 13 and the extrusion plates 14 are all made of iron materials, so that the conductive sheet 7 can conduct electricity through the extrusion plate 14 and the spring 13, thereby improving the electrical conductivity effect between the conductive sheet 7 and the conductive sleeve 5.

[0030] Please refer to Figures 1-5 , both the multiple conductive sheets 7 and the conductive bushing 5 are made of copper. Copper has good electrical conductivity, thus improving the electrical conductivity of the multiple conductive sheets 7 and the conductive bushing 5.

[0031] The working principle of the present utility model is as follows: By inserting the multiple conductive sheets 7 into the multiple conductive bushings 5, the wire cores of the cable 2 and the extension wire 10 are connected. When the conductive sheet 7 enters the conductive bushing 5, it will squeeze the side wall of the pressing plate 14, causing the pressing plate 14 to squeeze the spring 13. Under the action of the spring 13, the bottom of the pressing plate 14 always abuts against the top side wall of the conductive sheet 7, so that the bottom of the conductive sheet 7 abuts against the inner bottom side wall of the conductive bushing 5, thereby improving the electrical conductivity between the conductive sheet 7 and the conductive bushing 5. Then, by screwing the fixing cylinder 4, the fixing cylinder 4 is threadedly connected to the outer side wall of the external thread 9. The inner side wall of the fixing cylinder 4 will squeeze the limiting ring 6, thereby driving the first sleeve 3 and the second sleeve 11 to approach each other, and the first sleeve 3 and the second sleeve 11 can be connected and fixed. Through the arrangement of the first sleeve 3 and the second sleeve 11, the extension wire 10 and the cable 2 can be protected from being damaged by extrusion or other factors. The extension wire 10 and the cable 2 are connected by a quick plugging method, which is convenient for disassembling the extension wire 10 and the cable 2, and thus convenient for disassembling, repairing or replacing the thermocouple body 1.

[0032] The above is only the preferred embodiment of the present utility model, and does not impose any form of limitation on the present utility model; any ordinary technician in the industry can smoothly implement the present utility model according to the illustrations in the specification and the above description; however, any slight changes, modifications and equivalent variations made by those skilled in the art within the scope of the technical solution of the present utility model by using the technical content disclosed above are all equivalent embodiments of the present utility model; at the same time, any equivalent changes, modifications and variations made to the above embodiments based on the essential technology of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A thermocouple joint, comprising a first sleeve (3), characterized in that, One end of the first sleeve (3) is fixedly connected to a thermocouple body (1). A cable (2) is arranged inside the first sleeve (3). One end of the cable (2) is connected to the electrical components inside the thermocouple body (1). A fixing plate (12) is fixedly connected inside the first sleeve (3). A plurality of conductive sleeves (5) are fixedly connected to the side wall of the fixing plate (12). One end of each of the plurality of conductive sleeves (5) penetrates through the side wall of the fixing plate (12). A plurality of wire cores inside the cable (2) are respectively fixedly connected to the side wall of one end of each conductive sleeve (5). One end of the first sleeve (3) is connected to a second sleeve (11) through a fixing device. An installation plate (8) is fixedly connected to the inner side wall of the second sleeve (11). A plurality of conductive sheets (7) are fixedly connected to the side wall of the installation plate (8). One end of each of the plurality of conductive sheets (7) is respectively located inside the plurality of conductive sleeves (5). One end of each of the plurality of conductive sheets (7) penetrates through the installation plate (8). An extension wire (10) is arranged inside the second sleeve (11). A plurality of wire cores inside the extension wire (10) are respectively fixedly connected to the side wall of one end of each conductive sheet (7). Both the installation plate (8) and the fixing plate (12) are made of insulating materials.

2. The thermocouple joint according to claim 1, characterized in that, The fixing device includes a fixing cylinder (4). The fixing cylinder (4) is movably connected to the outer side wall of the first sleeve (3). Internal threads are provided on the inner side wall of the fixing cylinder (4). A limiting ring (6) is fixedly connected to the outer side wall of one end of the first sleeve (3). External threads (9) are provided on the outer side wall of one end of the second sleeve (11). The external threads (9) are adapted to the internal threads on the inner side wall of the fixing cylinder (4).

3. A thermocouple joint according to claim 2, characterized in that, Anti-slip patterns are provided on the outer side wall of the fixing cylinder (4).

4. A thermocouple joint according to claim 1, wherein, A spring (13) is fixedly connected to the inner top of each conductive sleeve (5). An extrusion plate (14) is fixedly connected to the bottom of each spring (13). Both ends of each extrusion plate (14) are arc-shaped. The bottom of each extrusion plate (14) respectively abuts against the top side wall of each conductive sheet (7).

5. A thermocouple joint according to claim 4, characterized in that, The plurality of springs (13) and the extrusion plates (14) are all made of iron materials.

6. A thermocouple joint according to claim 1, characterized in that, The plurality of conductive sheets (7) and the conductive sleeves (5) are all made of copper materials.

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