A press-in type thermocouple

Abstract

This application provides a snap-fit ​​thermocouple, including a thermocouple body, a pipe on the lower side of the thermocouple body, and a measuring end fixedly mounted on the lower surface of the thermocouple body. A fixing block is fixedly mounted on the outside of the measuring end, and an installation ring is fixedly mounted on the lower surface of the fixing block. A fixing cylinder is fixedly mounted on the upper surface of the pipe, and a fixing mechanism is provided between the fixing block, the installation ring, and the fixing cylinder. Through the use of this fixing mechanism, during installation, simply press the buttons on both sides, align the installation ring with the fixing cylinder, and insert it. The internal spring pushes the sliding strip, causing the locking block to automatically engage with the slot in the fixing cylinder, achieving a quick and stable connection between the thermocouple body and the pipe. During disassembly, pressing the buttons moves the sliding strip and the locking block away from the slot, allowing the thermocouple to be easily removed without tools. This simple and efficient operation greatly saves time and manpower for installation and disassembly, improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of thermocouples, and in particular to a snap-fit ​​thermocouple. Background Technology

[0002] In many fields requiring precise temperature control, such as industrial production, energy monitoring, and aerospace, thermocouples are crucial temperature sensing elements. They operate based on the thermoelectric effect and are made of two conductors or semiconductors of different materials welded together. When a temperature difference exists between the two ends of a thermocouple, a thermoelectric electromotive force (EMF) is generated. By measuring the magnitude of this EMF, the temperature value can be accurately calculated. In existing technologies, thermocouples are typically connected to the pipes or other components being measured using bolts. This connection method requires tools during installation and disassembly, making the operation cumbersome, time-consuming, and labor-intensive, thus reducing work efficiency. Furthermore, thermocouples often face sudden cooling and heating conditions in practical use, and existing metal protective tubes gradually corrode and deteriorate. Replacement requires replacing the entire thermocouple, increasing operating costs and wasting resources. Therefore, we propose an improvement: a snap-fit ​​thermocouple. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a snap-fit ​​thermocouple, which solves the problems mentioned in the background art.

[0004] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0005] Press-fit thermocouples are used to solve the above problems.

[0006] The application is as follows:

[0007] The thermocouple includes a thermocouple body, a pipe is provided on the lower side of the thermocouple body, and a measuring end is fixedly installed on the lower surface of the thermocouple body. A fixing block is fixedly installed on the outside of the measuring end, and an installation ring is fixedly installed on the lower surface of the fixing block. A fixing cylinder is fixedly installed on the upper surface of the pipe. A fixing mechanism is provided between the fixing block, the installation ring and the fixing cylinder. A protective tube is sleeved on the bottom end of the measuring end, and a connecting mechanism is provided between the fixing block and the protective tube.

[0008] The mounting ring and the fixing cylinder are connected by a snap-fit ​​connection, and the thermocouple body and the pipe form a snap-fit ​​structure.

[0009] As a preferred technical solution of this application, the fixing mechanism includes a sliding groove, which is opened inside the fixing block and the mounting ring on both sides. A sliding strip is slidably connected inside the sliding groove. A locking block is fixedly installed on one side surface of the bottom of the sliding strip and is slidably connected to the mounting ring. The inner wall of the fixing cylinder is provided with slots on both sides, and the locking block is engaged with the slots.

[0010] As a preferred technical solution of this application, a spring is fixedly installed between one side surface of the sliding bar and the inner wall of the sliding groove, and a pressing block is fixedly installed on one side surface of the upper end of the sliding bar, and the pressing block is slidably connected to the fixing block.

[0011] As a preferred technical solution of this application, the connecting mechanism includes a connecting groove, which is opened on both sides of the inner wall of the fixing block. An arc-shaped clamping block is slidably connected inside the connecting groove, which can clamp the protective tube sleeved on the outside of the measuring end.

[0012] As a preferred technical solution of this application, a rectangular groove is provided on one side of the inner wall of the connecting groove, and a push block is slidably connected inside the rectangular groove. The push block is fixedly connected to the arc-shaped clamping block, and the push block is also rectangular.

[0013] As a preferred technical solution of this application, a threaded rod is rotatably connected inside the rectangular groove, and the threaded rod is threadedly connected to the push block. Rotating blocks are rotatably connected inside both sides of the outer surface of the fixed block, and the rotating blocks are fixedly connected to one end of the threaded rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In the scheme of this application:

[0016] 1. With the use of the fixing mechanism, during installation, simply press the buttons on both sides, align the installation ring with the fixing cylinder and insert it. The internal spring pushes the sliding strip, causing the locking block to automatically engage with the slot in the fixing cylinder, achieving a quick and stable connection between the thermocouple body and the pipeline. During disassembly, press the button to move the sliding strip and locking block away from the slot, and the thermocouple can be easily removed without the need for tools. The operation is simple and efficient, greatly saving time and manpower for installation and disassembly, and improving work efficiency.

[0017] 2. By using the connecting mechanism, when the protective tube is damaged and needs to be replaced, simply rotate the rotating block and the arc-shaped clamp will loosen the tube sleeve, allowing the old protective tube to be easily removed and replaced with a new one. Then, rotate the rotating block in the opposite direction to clamp and fix the protective tube. The whole process is convenient and requires no complicated tools, which not only ensures the protective effect of the tube sleeve on the measuring end, but also reduces the replacement cost. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a partial frontal cross-sectional view of the present invention.

[0020] Figure 3 This utility model Figure 3 Enlarged structural diagram of section A in the middle;

[0021] Figure 4 This is a top view of the cross-sectional structure of the connecting mechanism of this utility model.

[0022] Figure label:

[0023] 1. Thermocouple body; 2. Pipeline; 3. Measuring end; 4. Fixing block; 5. Mounting ring; 6. Fixing cylinder; 7. Fixing mechanism; 701. Slide groove; 702. Sliding bar; 703. Clamping block; 704. Pressing block; 705. Spring; 706. Slot; 8. Protective tube; 9. Connecting mechanism; 901. Connecting groove; 902. Arc-shaped clamping block; 903. Rectangular groove; 904. Pushing block; 905. Threaded rod; 906. Rotating block. Detailed Implementation

[0024] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application.

[0025] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. "A plurality" or "several" indicates two or more. Unless otherwise stated, terms such as "front," "rear," "lower," and / or "upper" are for ease of description only and are not limited to a location or spatial orientation. Terms such as "comprising" or "including" mean that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0026] Please combine Figures 1 to 4The snap-fit ​​thermocouple provided by this utility model includes a thermocouple body 1, a pipe 2 provided on the lower side of the thermocouple body 1, and a measuring end 3 fixedly installed on the lower surface of the thermocouple body 1. A fixing block 4 is fixedly installed on the outside of the measuring end 3, and an installation ring 5 is fixedly installed on the lower surface of the fixing block 4. A fixing cylinder 6 is fixedly installed on the upper surface of the pipe 2. A fixing mechanism 7 is provided between the fixing block 4, the installation ring 5 and the fixing cylinder 6. A protective tube 8 is sleeved on the bottom of the measuring end 3. A connecting mechanism 9 is provided between the fixing block 4 and the protective tube 8. The installation ring 5 and the fixing cylinder 6 are connected by a snap-fit ​​connection, and the thermocouple body 1 and the pipe 2 form a snap-fit ​​structure.

[0027] In this embodiment: a pipe 2 is provided on the lower side of the thermocouple body 1, and a fixing block 4 is provided on the measuring end 3 on its lower surface. The fixing block 4 is connected to the mounting ring 5. A fixing cylinder 6 is provided on the pipe 2. The mounting ring 5 and the fixing cylinder 6 are engaged by the fixing mechanism 7 to realize the convenient engagement connection between the thermocouple body 1 and the pipe 2. A protective tube 8 is sleeved on the bottom of the measuring end 3 and fixed by the connecting mechanism 9 between the fixing block 4 and the protective tube 8. This can effectively protect the measuring end 3 and facilitate the subsequent replacement and maintenance of the protective tube 8.

[0028] In a preferred embodiment, the fixing mechanism 7 includes a sliding groove 701, which is formed inside the fixing block 4 and the mounting ring 5 on both sides. A sliding strip 702 is slidably connected inside the sliding groove 701. A locking block 703 is fixedly installed on one side surface of the bottom of the sliding strip 702 and is slidably connected to the mounting ring 5. A locking groove 706 is formed on both sides of the inner wall of the fixing cylinder 6, and the locking block 703 is engaged with the locking groove 706.

[0029] In this embodiment: when the mounting ring 5 is inserted into the fixing cylinder 6, the locking block 703 can be inserted into the locking grooves 706 on both sides of the inner wall of the fixing cylinder 6, so as to achieve a firm connection between the thermocouple and the pipeline.

[0030] In a preferred embodiment, a spring 705 is fixedly installed between one side surface of the sliding bar 702 and the inner wall of the slide groove 701, and a button 704 is fixedly installed on one side surface of the upper end of the sliding bar 702, and the button 704 is slidably connected to the fixing block 4.

[0031] In this embodiment: a spring 705 is provided between one side of the sliding bar 702 and the inner wall of the groove 701. Under normal conditions, the elastic force of the spring 705 makes the locking block 703 stably locked in the groove 706. A pressing block 704 is provided at the upper end of the sliding bar 702 and is slidably connected to the fixing block 4. When disassembly is required, pressing the pressing block 704 can drive the sliding bar 702 to move against the elastic force of the spring 705, so that the locking block 703 is disengaged from the groove 706, which facilitates disassembly.

[0032] In a preferred embodiment, the connecting mechanism 9 includes a connecting groove 901, which is formed on both sides of the inner wall of the fixing block 4. An arc-shaped clamping block 902 is slidably connected inside the connecting groove 901, which can clamp the protective tube 8 sleeved on the outside of the measuring end 3.

[0033] In this embodiment: connecting grooves 901 are opened on both sides of the inner wall of the fixing block 4, and the arc-shaped clamping block 902 slides flexibly in the connecting groove 901. When the protective tube 8 is sleeved on the outside of the measuring end 3, the arc-shaped clamping block 902 is driven to move in the connecting groove 901, so that it can fit tightly against and clamp the protective tube 8, effectively fix the protective tube 8, and ensure the protective effect on the measuring end 3.

[0034] In a preferred embodiment, a rectangular groove 903 is provided on one inner wall of the connecting groove 901, and a push block 904 is slidably connected inside the rectangular groove 903. The push block 904 is fixedly connected to the arc-shaped clamping block 902, and the push block 904 is also rectangular.

[0035] In this embodiment: a rectangular groove 903 is formed on the inner wall of one side of the connecting groove 901, the push block 904 slides inside it, and the push block 904 is fixedly connected to the arc-shaped clamping block 902. Its rectangular shape ensures the stability of movement. When the push block 904 is pushed to slide in the rectangular groove 903, it can simultaneously drive the arc-shaped clamping block 902 to move in the connecting groove 901, thereby realizing the precise clamping or loosening of the protective tube 8.

[0036] In a preferred embodiment, a threaded rod 905 is rotatably connected inside the rectangular groove 903, and the threaded rod 905 is threadedly connected to the push block 904. Rotating blocks 906 are rotatably connected inside both sides of the outer surface of the fixed block 4, and the rotating blocks 906 are fixedly connected to one end of the threaded rod 905.

[0037] In this embodiment, the threaded rod 905, which is rotatably disposed in the rectangular groove 903, is threadedly connected to the push block 904. When the rotating blocks 906 on both sides of the outer surface of the fixed block 4 are rotated, the threaded rod 905 can be driven to rotate synchronously, thereby pushing the push block 904 to move linearly in the rectangular groove 903. Since the push block 904 is fixedly connected to the arc-shaped clamping block 902, the arc-shaped clamping block 902 slides in the connecting groove 901 to clamp or loosen the protective tube 8, making the whole operation process convenient and simple.

[0038] Specifically, the working principle of this solution is as follows:

[0039] During installation, insert the mounting ring 5 into the fixing cylinder 6. During installation, press down on the button 704, causing the sliding strip 702 and the locking block 703 to slide within the groove 701. The spring 705 is compressed. When the mounting ring 5 is in place, the spring force of the spring 705 causes the locking block 703 to engage with the groove 706 on the inner wall of the fixing cylinder 6, achieving a secure connection between the thermocouple body 1 and the pipe 2. During disassembly, press down on the button 704, causing the sliding strip 702 to move against the spring force of the spring 705. The locking block 703 disengages from the groove 706, allowing the thermocouple to be easily removed.

[0040] For the installation of the protective tube 8, after the protective tube 8 is fitted over the measuring end 3, the rotating block 906 on the outer surface of the fixing block 4 is rotated, causing the threaded rod 905 to rotate. Since the threaded rod 905 is threadedly connected to the push block 904, the push block 904 moves linearly within the rectangular groove 903, causing the arc-shaped clamping block 902 to slide within the connecting groove 901, thereby clamping the protective tube 8. When the protective tube 8 needs to be replaced, the rotating block 906 is rotated in the opposite direction, and the arc-shaped clamping block 902 releases the protective tube 8, allowing it to be removed and replaced. The operation is convenient and the structure is stable and reliable.

[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. Although this application has disclosed the preferred embodiment as above, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the content of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A snap-fit ​​thermocouple, comprising a thermocouple body (1), characterized in that: A pipe (2) is provided on the lower side of the thermocouple body (1), and a measuring end (3) is fixedly installed on the lower surface of the thermocouple body (1). A fixing block (4) is fixedly installed on the outside of the measuring end (3), and an installation ring (5) is fixedly installed on the lower surface of the fixing block (4). A fixing cylinder (6) is fixedly installed on the upper surface of the pipe (2). A fixing mechanism (7) is provided between the fixing block (4) and the installation ring (5) and the fixing cylinder (6). A protective tube (8) is sleeved on the outside of the bottom end of the measuring end (3), and a connecting mechanism (9) is provided between the fixing block (4) and the protective tube (8). The mounting ring (5) and the fixing cylinder (6) are connected by a snap-fit ​​connection, and the thermocouple body (1) and the pipe (2) form a snap-fit ​​structure.

2. The snap-fit ​​thermocouple according to claim 1, characterized in that: The fixing mechanism (7) includes a sliding groove (701), which is located inside the fixing block (4) and the mounting ring (5) on both sides. A sliding strip (702) is slidably connected inside the sliding groove (701). A locking block (703) is fixedly installed on one side of the bottom of the sliding strip (702), and the locking block (703) is slidably connected to the mounting ring (5). The inner walls of the fixing cylinder (6) are provided with slots (706) on both sides, and the locking block (703) is engaged with the slot (706).

3. The snap-fit ​​thermocouple according to claim 2, characterized in that: A spring (705) is fixedly installed between one side surface of the sliding bar (702) and the inner wall of the groove (701), and a button (704) is fixedly installed on one side surface of the upper end of the sliding bar (702), and the button (704) is slidably connected to the fixing block (4).

4. The snap-fit ​​thermocouple according to claim 1, characterized in that: The connecting mechanism (9) includes a connecting groove (901), and the connecting groove (901) is opened on both sides of the inner wall of the fixing block (4). An arc-shaped clamping block (902) is slidably connected inside the connecting groove (901) to clamp the protective tube (8) sleeved outside the measuring end (3).

5. The snap-fit ​​thermocouple according to claim 4, characterized in that: A rectangular groove (903) is provided on one side of the inner wall of the connecting groove (901), and a push block (904) is slidably connected inside the rectangular groove (903). The push block (904) is fixedly connected to the arc-shaped clamping block (902), and the push block (904) is also rectangular.

6. The snap-fit ​​thermocouple according to claim 5, characterized in that: The rectangular groove (903) is rotatably connected to a threaded rod (905), and the threaded rod (905) is threadedly connected to the push block (904). The two sides of the outer surface of the fixed block (4) are rotatably connected to rotating blocks (906), and the rotating blocks (906) are fixedly connected to one end of the threaded rod (905).

Images