Four-wire platinum thermistor connecting device

Abstract

The utility model relates to the technical field of four-wire platinum thermal resistor connecting devices, and particularly discloses a four-wire platinum thermal resistor connecting device which comprises a connecting box, an adjusting mechanism arranged on the surface of the connecting box and used for preventing dust of an interface, and an indicating lamp arranged on the surface of the connecting box and used for judging whether plugging is normal or not. The adjusting mechanism comprises a protective coaming plate, a TYPE-C interface, an adjusting device, a pushing plate, a protective plate and a clamping mechanism, the surface of the protective coaming plate is fixedly connected with the surface of the connecting box, the surface of the TYPE-C interface is fixedly connected with the surface of the connecting box, the surface of the indicator lamp is movably connected with the surface of an inner cavity of the connecting box, and through the arrangement of the TYPE-C interface, the wiring process is simplified, and the wiring efficiency is improved. The installation efficiency is improved, the connection cost is reduced, wrong wiring is effectively prevented by observing the state of the indicator lamp, the reliability is improved, the system stability is improved by utilizing the excellent protection characteristic of the TYPE-C interface, the TYPE-C interface is protected through the protection plate, and the TYPE-C interface is prevented from being damaged by dust and impurities entering the TYPE-C interface when the TYPE-C interface is idle.

Description

Technical Field

[0001] This utility model relates to the technical field of four-wire platinum resistance thermometer connection devices, specifically a four-wire platinum resistance thermometer connection device. Background Technology

[0002] The four-wire platinum resistance thermometer (RTD) connector is an innovative device designed for high-precision temperature measurement. Using a Type-C interface as its core, it leverages the versatility, convenience, and support for high-speed data transmission and power supply. Through a carefully designed circuit, it achieves a stable connection with a four-wire PTD. The four-wire design effectively eliminates the influence of wire resistance on the measurement results, ensuring accuracy. This connector integrates a signal conditioning circuit that accurately converts the resistance signal generated by the PTD as it changes with temperature into a readable and processable voltage signal. This facilitates interfacing with various measuring instruments and control systems equipped with Type-C interfaces, providing reliable support for precise temperature monitoring in industrial automation, scientific research, and other scenarios.

[0003] Existing traditional four-wire resistance thermometer connection methods typically use dedicated terminals or special connectors, which are cumbersome to use, requiring confirmation of the connection position of each of the four wires. During on-site installation and maintenance, it is easy to make mistakes in the wiring sequence, affecting measurement accuracy. Moreover, the connectors are expensive, often need to be customized, and lack protective effects. Therefore, we propose a four-wire platinum resistance thermometer connection device. Utility Model Content

[0004] The purpose of this utility model is to provide a four-wire platinum resistance thermometer connection device to solve the problems mentioned in the background art. Traditional four-wire resistance thermometer connection methods usually use special terminals or special connectors, which are cumbersome to use. They require confirmation of the connection position of each of the four wires. During on-site installation and maintenance, it is easy to connect the wrong wire sequence, which affects the measurement accuracy. Moreover, the connectors are expensive, often need to be customized, and lack protective effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a four-wire platinum resistance thermometer connection device, including a connection box, the surface of the connection box is provided with an adjustment mechanism for dust prevention of the interface, and the surface of the connection box is provided with an indicator light for judging whether the insertion is normal.

[0006] The adjustment mechanism includes a protective enclosure, a TYPE-C interface, an adjustment device, a push plate, a protective plate, and a clamping mechanism. The surface of the protective enclosure is fixedly connected to the surface of the connection box, the surface of the TYPE-C interface is fixedly connected to the surface of the connection box, and the surface of the indicator light is movably connected to the inner surface of the connection box.

[0007] The adjustment device is fixedly connected to the surface of the protective enclosure, the push plate is fixedly connected to the surface of the protective plate, the protective plate is slidably connected to the surface of the protective enclosure, and the protective plate is connected to the surface of the clamping mechanism.

[0008] The adjustment device includes an adjustment box, a snap-fit ​​device, and a first spring. The surface of the adjustment box is fixedly connected to the surface of the protective enclosure. The surface of the snap-fit ​​device is connected to the inner surface of the adjustment box. The surface of the snap-fit ​​device is connected to one end of the first spring. The other end of the first spring is fixedly connected to the inner surface of the adjustment box.

[0009] The locking device includes a sliding block and a locking block. The surface of the sliding block is slidably connected to the inner cavity surface of the adjustment box. The surface of the sliding block is fixedly connected to one end of the first spring. The surface of the locking block is slidably connected to the surface of the sliding block. The surface of the locking block is movably locked to the surface hole of the adjustment box. The surface of the push plate is fixedly connected to the surface of the sliding block.

[0010] The clamping mechanism includes a housing, a sliding rod, a pull rod, a limiting post, a spring, a clamping plate, and a limiting plate. The surface of the housing is fixedly connected to the upper surface of the protective plate, the surface of the housing is slidably connected to the surface of the sliding rod, one end of the sliding rod is fixedly connected to the surface of the pull rod, and the surface of the pull rod is movably connected to the surface of the housing.

[0011] The other end of the sliding rod is fixedly connected to the surface of the clamping plate, the surface of the clamping plate is fixedly connected to one end of the spring, the other end of the spring is fixedly connected to the inner surface of the housing, the inner surface of the housing is fixedly connected to one end of the limiting post, the surface of the limiting post is movably connected to the surface of the spring, the surface of the limiting plate is movably connected to the surface of the clamping plate, and the surface of the limiting plate is slidably connected to the surface of the housing.

[0012] This utility model has at least the following beneficial effects: the TYPE-C interface simplifies the wiring process, improves installation efficiency, reduces connection costs, effectively prevents incorrect wiring by observing the indicator light status, improves reliability, enhances system stability by utilizing the excellent protection characteristics of the TYPE-C interface, and protects the TYPE-C interface with a protective plate to prevent dust and impurities from entering and damaging the TYPE-C interface when it is idle. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the adjustment mechanism of this utility model;

[0015] Figure 3 This is a schematic diagram of the adjusting device structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the snap-fit ​​device of this utility model;

[0017] Figure 5 This is a schematic diagram of the clamping device of this utility model.

[0018] In the diagram: 1. Connecting box; 2. Adjustment mechanism; 21. Protective enclosure; 22. TYPE-C interface; 23. Adjustment device; 24. Push plate; 25. Protective plate; 26. Clamping mechanism; 231. Adjustment box; 232. Snap-fit ​​device; 233. First spring; 2321. Sliding block; 2322. Snap-fit ​​block; 261. Housing; 262. Sliding rod; 263. Pull rod; 264. Limiting post; 265. Spring; 266. Clamping plate; 267. Limiting plate; 3. Indicator light. Detailed Implementation

[0019] 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.

[0020] Example 1

[0021] Please see Figures 1 to 5This utility model provides a technical solution: a four-wire platinum resistance thermometer connection device, including a connection box 1. The surface of the connection box 1 is provided with an adjustment mechanism 2 for dustproofing the interface. The surface of the connection box 1 is provided with an indicator light 3 for judging whether the insertion is normal. The adjustment mechanism 2 includes a protective plate 21, a TYPE-C interface 22, an adjustment device 23, a push plate 24, a protective plate 25, and a clamping mechanism 26. The surface of the protective plate 21 is fixedly connected to the surface of the connection box 1. The surface of the TYPE-C interface 22 is fixedly connected to the surface of the connection box 1. The surface of the indicator light 3 is movably connected to the inner surface of the connection box 1. The surface of the adjustment device 23 is fixedly connected to the surface of the protective plate 21. The surface of the push plate 24 is fixedly connected to the surface of the protective plate 25. The surface of the protective plate 25 is slidably connected to the surface of the protective plate 21. The surface of the protective plate 25 is connected to the surface of the clamping mechanism 26. The connection and adjustment device 23 includes an adjustment box 231, a snap-fit ​​device 232, and a first spring 233. The surface of the adjustment box 231 is fixedly connected to the surface of the protective enclosure 21. The surface of the snap-fit ​​device 232 is connected to the inner cavity surface of the adjustment box 231. The surface of the snap-fit ​​device 232 is connected to one end of the first spring 233. The other end of the first spring 233 is fixedly connected to the inner cavity surface of the adjustment box 231. The snap-fit ​​device 232 includes a sliding block 2321 and a snap-fit ​​block 2322. The surface of the sliding block 2321 is slidably connected to the inner cavity surface of the adjustment box 231. The surface of the sliding block 2321 is fixedly connected to one end of the first spring 233. The surface of the snap-fit ​​block 2322 is slidably connected to the surface of the sliding block 2321. The surface of the snap-fit ​​block 2322 is movably snapped into the surface hole of the adjustment box 231. The surface of the push plate 24 is fixedly connected to the surface of the sliding block 2321.

[0022] During use, the double-sided symmetry of the TYPE-C interface 22 enables plugging and unplugging regardless of orientation. The two sets of GND, VBUS, DP, and DN signal pins of the TYPE-C interface 22 are shorted respectively. VBUS is connected to the RTD excitation current input terminal, GND is connected to the RTD excitation current return terminal, DP is connected to the positive terminal of the RTD voltage measurement, and DN is connected to the negative terminal of the RTD voltage measurement. This achieves a perfect combination of a standardized interface and professional temperature measurement equipment. After use, by pushing the latching block 2322 upwards, the latching block 2322 enters the sliding block 2321. The first spring 233 rebounds, causing the push plate 24 to slide. The push plate 24 then closes the protective plate 25, which provides protection for the TYPE-C interface 22.

[0023] Example 2

[0024] In this second embodiment, the other structures remain unchanged. The difference from the first embodiment is that the clamping mechanism 26 includes a housing 261, a sliding rod 262, a pull rod 263, a limiting post 264, a spring 265, a clamping plate 266, and a limiting plate 267. The surface of the housing 261 is fixedly connected to the upper surface of the protective plate 25. The surface of the housing 261 is slidably connected to the surface of the sliding rod 262. One end of the sliding rod 262 is fixedly connected to the surface of the pull rod 263. The surface of the pull rod 263 is movably connected to the surface of the housing 261. The other end of the sliding rod 262 is fixedly connected to the surface of the clamping plate 266. The surface of the clamping plate 266 is fixedly connected to one end of the spring 265. The other end of the spring 265 is fixedly connected to the inner surface of the housing 261. The inner surface of the housing 261 is fixedly connected to one end of the limiting post 264. The surface of the limiting post 264 is movably connected to the surface of the spring 265. The surface of the limiting plate 267 is movably connected to the surface of the clamping plate 266. The surface of the limiting plate 267 is slidably connected to the surface of the housing 261.

[0025] When in use, after the TYPE-C interface 22 is plugged in, the sliding limit plate 267 and the spring 265 rebound to drive the clamping plate 266 to clamp the cable above the TYPE-C interface 22, which can effectively enhance the stability of the connected cable.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A four-wire platinum resistance connection device comprising a connection box (1), characterized in that: The surface of the connecting box (1) is provided with an adjusting mechanism (2) for dustproof of the interface, and the surface of the connecting box (1) is provided with an indicating lamp (3) for judging whether the plug-in is normal. The adjusting mechanism (2) comprises a protective fence (21), a TYPE-C interface (22), an adjusting device (23), a push plate (24), a protective plate (25), and a clamping mechanism (26), the surface of the protective fence (21) is fixedly connected with the surface of the connecting box (1), the surface of the TYPE-C interface (22) is fixedly connected with the surface of the connecting box (1), and the surface of the indicating lamp (3) is movably connected with the inner cavity surface of the connecting box (1).

2. A four-wire platinum resistance connection arrangement according to claim 1, characterised in that: The surface of the adjusting device (23) is fixedly connected with the surface of the protective fence (21), the surface of the push plate (24) is fixedly connected with the surface of the protective plate (25), the surface of the protective plate (25) is slidably connected with the surface of the protective fence (21), and the surface of the protective plate (25) is connected with the surface of the clamping mechanism (26).

3. A four-wire platinum resistance connection arrangement according to claim 2, characterised in that: The adjusting device (23) comprises an adjusting box (231), a clamping device (232), and a first spring (233), the surface of the adjusting box (231) is fixedly connected with the surface of the protective fence (21), the surface of the clamping device (232) is connected with the inner cavity surface of the adjusting box (231), the surface of the clamping device (232) is connected with one end of the first spring (233), and the other end of the first spring (233) is fixedly connected with the inner cavity surface of the adjusting box (231).

4. A four-wire platinum resistance connection arrangement according to claim 3, characterised in that: The clamping device (232) comprises a sliding block (2321) and a clamping block (2322), the surface of the sliding block (2321) is slidably connected with the inner cavity surface of the adjusting box (231), the surface of the sliding block (2321) is fixedly connected with one end of the first spring (233), the surface of the clamping block (2322) is slidably connected with the surface of the sliding block (2321), the surface of the clamping block (2322) is movably clamped with the surface hole of the adjusting box (231), and the surface of the push plate (24) is fixedly connected with the surface of the sliding block (2321).

5. The four-wire platinum resistance connection apparatus of claim 2, wherein: The clamping mechanism (26) comprises a shell (261), a sliding rod (262), a pull rod (263), a limiting column (264), a spring (265), a clamping plate (266), and a limiting plate (267), the surface of the shell (261) is fixedly connected with the upper surface of the protective plate (25), the surface of the shell (261) is slidably connected with the surface of the sliding rod (262), one end of the sliding rod (262) is fixedly connected with the surface of the pull rod (263), and the surface of the pull rod (263) is movably connected with the surface of the shell (261).

6. A four-wire platinum resistance connection arrangement according to claim 5, characterised in that: One end of the sliding rod (262) is fixedly connected with the surface of the clamping plate (266), one end of the clamping plate (266) is fixedly connected with the surface of the spring (265), the other end of the spring (265) is fixedly connected with the inner cavity surface of the shell (261), the inner cavity surface of the shell (261) is fixedly connected with one end of the limiting column (264), the surface of the limiting column (264) is movably connected with the surface of the spring (265), the surface of the limiting plate (267) is movably connected with the surface of the clamping plate (266), and the surface of the limiting plate (267) is slidingly connected with the surface of the shell (261).

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