A device for voltage detection of thermal instruments in power plants

Abstract

The utility model discloses a device for power plant thermal instrument voltage detection, including detection host computer, with the detection host computer pressure connection and with the detection host computer connection assembly, be provided with display screen and button on the detection host computer, the connection assembly includes with the back of detection host computer fixed link's base, rotates and is installed on the rotating seat of base, and two sets of interval installation wrist belt assembly on the rotating seat, the surface of base and rotating seat adjacent, with rotating seat's rotating axis as center circle array has a plurality of limit hole no.

Description

Technical Field

[0001] This utility model relates to the field of power plant testing equipment technology, and in particular to a device for voltage detection of thermal instruments in power plants. Background Technology

[0002] In existing technologies, thermal instruments in power plants are susceptible to various factors during operation, including ambient temperature, humidity, electromagnetic interference, mechanical vibration, and component aging. These factors can lead to faults such as zero-point drift, range deviation, and abnormal signal output, resulting in significant measurement errors and consequently affecting the accuracy and safety of the power plant's automation control system. Therefore, periodic calibration and testing of thermal instruments are necessary to ensure their measurement accuracy and operational reliability. Conventional testing methods often employ portable voltage measuring instruments to collect the output signals of thermal instruments and determine whether the instruments are in normal working order by setting voltage limits. This method is widely used in field testing operations due to its ease of operation and rapid response.

[0003] However, in actual operation, since voltage measuring instruments are usually equipped with two measuring connectors, positive and negative, the tester needs to hold the measuring instrument body with one hand and use the other hand to operate the two measuring connectors to connect to the wiring terminals of the instrument under test. This makes the operation process cumbersome and inefficient. Especially when working in confined spaces or at heights, problems such as unstable wiring, poor contact, or even incorrect wiring are very likely to occur, which not only affects the accuracy of the test but also increases the safety risks of the operation.

[0004] To address the aforementioned technical issues, my country's utility model patent publication number CN 222124399 U discloses a power plant thermal instrument testing device. This device utilizes an adjustable fixing mechanism on the outside of the measuring instrument's housing to securely fasten the housing to the operator's arm or wrist, thereby enabling stable carrying of the measuring instrument. This effectively frees the operator's hands, allowing for more flexible and precise operation of the two measuring connectors to detect the voltage signals of the thermal instruments, thus improving the convenience and safety of on-site testing.

[0005] However, this utility model still has certain limitations in practical applications: because the housing is kept relatively fixed to the operator's arm by a fixing mechanism, its overall posture changes synchronously with arm movements, resulting in the display angle of the integrated screen on the housing not being able to be independently adjusted according to actual observation needs. When the inspector performs readings with their arm bent or in an unnatural posture, the orientation of the display screen is fixed, creating a large angle between the viewing angle and the normal of the display screen, causing visual tilting or glare. Readings require unnatural postures such as tilting the head or twisting the neck, which not only easily causes visual fatigue but also easily leads to misinterpretation, seriously affecting the accuracy of the inspection and the comfort of operation, thus reducing the ergonomic performance and user experience of the equipment. Therefore, it is urgent to improve the existing technology to solve the technical problem of the non-adjustable display screen angle. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a device for voltage detection of thermal instruments in power plants.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0008] A device for voltage detection of thermal instruments in power plants includes a detection host, a pressure measuring connector connected to the detection host, and a connecting assembly connected to the detection host. The detection host is equipped with a display screen and buttons. The connecting assembly includes a base fixed to the back of the detection host, a rotating seat rotatably mounted on the base, and two sets of wristband assemblies spaced apart on the rotating seat. On the surfaces adjacent to the base and the rotating seat, a plurality of limiting holes are arranged in a circular array centered on the rotation axis of the rotating seat. Two positioning beads that cooperate with the limiting holes are symmetrically arranged on the rotating seat.

[0009] As a preferred technical solution of this utility model, the wristband assembly includes a wristband one fixedly connected to one side of the rotating seat, a wristband two fixedly connected to the other side of the rotating seat, and a buckle connecting the wristband one and the wristband two; one side of the buckle is fixedly connected to the wristband one, and the other side is adjustablely connected to the wristband two.

[0010] As a preferred embodiment of the present invention, the rotating seat includes a connecting part and an arc-shaped part integral with the connecting part.

[0011] As a preferred embodiment of this invention, the rotating seat has an arc-shaped sponge pad on the contact surface with the arm.

[0012] As a preferred technical solution of this utility model, the base is detachably connected to the detection host through a snap-fit ​​structure; the snap-fit ​​structure includes two guide strips symmetrically fixed to the back of the detection host and having an inverted L-shaped cross-section, and guide grooves disposed on both sides of the base and cooperating with the guide strips; the base is fixedly connected to the detection host through a locking mechanism.

[0013] As a preferred embodiment of the present invention, the locking mechanism includes a second positioning bead fixed to the base and a second limiting hole disposed on the back of the detection host.

[0014] As a preferred embodiment of this invention, the locking mechanism is a locking screw.

[0015] The above technical solution has the following advantages:

[0016] This invention effectively solves the technical problems of fixed display screen angle and inconvenient reading in existing technologies by optimizing the fixing mechanism of the testing host. Through the angle adjustment mechanism, the display angle can be flexibly adjusted according to the operator's observation position and working posture. Especially when the arm is bent or in a non-horizontal posture, the display screen can still be adjusted to the optimal viewing angle, significantly reducing the angle between the viewing angle and the screen, and avoiding reading errors and visual fatigue caused by viewing angle tilt. This invention fully considers the human-machine interaction needs in on-site testing operations, improving the equipment's visibility, operational comfort, and testing accuracy. It effectively enhances the equipment's ergonomic performance and user experience, and has advantages such as reasonable structure, convenient operation, and strong practicality. It is suitable for the complex working environment of on-site testing of thermal instruments in power plants. Attached Figure Description

[0017] Figure 1 This is a front view of one embodiment of the present utility model;

[0018] Figure 2 for Figure 1 Top view;

[0019] Figure 3 for Figure 2 A partial sectional view along the center AA;

[0020] Figure 4 for Figure 3 Enlarged view of section B;

[0021] Figure 5 for Figure 1 A three-dimensional image;

[0022] In the picture:

[0023] 1-Detection host, 2-Pressure test connector, 3-Display screen, 4-Button, 5-Base, 6-Rotating seat, 7-Wristband assembly, 8-Limit hole one, 9-Positioning bead one, 10-Sponge pad, 11-Guide strip, 12-Guide groove, 13-Locking mechanism, 14-Positioning bead two, 15-Limit hole two;

[0024] 61-Connecting part, 62-Arc-shaped part;

[0025] 71-Wristband 1, 72-Wristband 2, 73-Snap buckle. Detailed Implementation

[0026] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] Example 1

[0028] As attached Figure 1-5 As shown, a device for voltage detection of thermal instruments in power plants includes a detection host 1, a pressure measuring connector 2 connected to the detection host 1, and a connecting assembly connected to the detection host 1; the detection host 1 is provided with a display screen 3 and buttons 4; the connecting assembly includes a base 5 fixedly connected to the back of the detection host 1, a rotating seat 6 rotatably mounted on the base 5, and two sets of wristband assemblies 7 spaced apart on the rotating seat 6; on the surfaces adjacent to the base 5 and the rotating seat 6, a plurality of limiting holes 8 are arranged in a circular array with the rotation axis of the rotating seat 6 as the center, and two positioning beads 9 symmetrically arranged on the rotating seat 6 to cooperate with the limiting holes.

[0029] As a preferred embodiment, the wristband assembly 7 includes a first wristband 71 fixedly connected to one side of the rotating base 6, a second wristband 72 fixedly connected to the other side of the rotating base 6, and a buckle 73 connecting the first wristband 71 and the second wristband 72. One side of the buckle 73 is fixedly connected to the first wristband 71, and the other side is adjustablely connected to the second wristband 72. The buckle 73 and the adjustable connection structure enable quick adjustment and locking of the wristband length, adapting to different operator wrist sizes. This design improves wearing stability and comfort, ensures the equipment is not easily slipped off under complex working conditions, and enhances operational safety and convenience. Obviously, the buckle 73 can use common wristband connectors such as D-rings for connection and adjustment.

[0030] As a preferred technical solution in this embodiment, the rotating seat 6 includes a connecting part 61 and an arc-shaped part 62 integral with the connecting part 61. This structure achieves a rotatable connection with the base 5 through the connecting part 61, and the arc-shaped part 62 conforms to the shape of the arm, optimizing the force distribution; the beneficial effects are improved structural stability and wearing comfort during wear, reduced local pressure, and enhanced applicability for long-term work.

[0031] As a preferred technical solution in this embodiment, the rotating seat 6 has an arc-shaped sponge pad 10 on the surface that contacts the arm. The sponge pad 10 directly contacts the operator's arm, providing cushioning and anti-slip effects, further improving wearing comfort, absorbing vibration, preventing equipment displacement due to friction or sweat, and ensuring the stability of the testing process.

[0032] In one preferred embodiment, the base 5 is detachably connected to the testing host 1 via a snap-fit ​​structure. The snap-fit ​​structure includes two symmetrically fixed guide strips 11 with an inverted L-shaped cross-section, fixed to the back of the testing host 1, and guide grooves 12 located on both sides of the base 5 and cooperating with the guide strips 11. The base 5 is fixedly connected to the testing host 1 via a locking mechanism 13. During installation, the guide strips 11 are aligned with the guide grooves 12 and slid in to achieve quick positioning and connection, and then locked by the locking mechanism 13. This design facilitates the disassembly and maintenance of the testing host 1 and the connecting components, improving the modularity and flexibility of the equipment.

[0033] As a preferred embodiment, the locking mechanism 13 includes a positioning bead 14 fixed to the base 5 and a limiting hole 15 located on the back of the detection host 1. After the detection host 1 and the base 5 are slidably assembled, the positioning bead 14 automatically engages with the limiting hole 15 to achieve locking. This locking mechanism 13 has a simple and reliable structure, enabling quick assembly and a secure connection, preventing accidental loosening during use. Obviously, the locking mechanism 13 can also be replaced by a locking screw or a pin.

[0034] When using this device to test the voltage of thermal instruments in power plants, the inspector first wears the device on their forearm or wrist. By adjusting the buckle 73 of the wristband assembly 7, the device is secured to the arm. After wearing the device, the inspector can manually rotate the rotating base 6 according to their current working posture (such as bending over, looking up, turning sideways, or operating in a confined space). This rotates the connected testing host 1 around the axis of rotation of the base 5 to adjust its angle. During rotation, the positioning bead 9 on the rotating base 6 slides along the surface of the base 5. When the display screen 3 is adjusted to the optimal viewing angle, the positioning bead 9 automatically engages in the corresponding limiting hole 8, achieving precise positioning and reliable locking of the testing host 1's angle. This adjustment process requires no additional tools, is simple and quick, and allows for rapid angle optimization.

[0035] The multi-position angle adjustment structure employed in this workflow allows the display screen 3 to flexibly switch between multiple preset angles (such as 0°, 30°, 45°, 60°, etc.), effectively adapting to the observation needs of different heights, working postures, and complex on-site environments. Especially when the arm is bent or in a non-horizontal posture, it ensures that the display screen 3 remains facing the operator's line of sight, significantly reducing viewing angle deviation and avoiding misreadings caused by reflections, tilted displays, or viewing angle deviations. Simultaneously, clear and intuitive visual feedback shortens reading time, improving detection efficiency and accuracy. This design fully embodies ergonomic principles, not only reducing operator visual fatigue and operational burden but also enhancing the overall comfort and user-friendliness of the equipment, significantly improving the safety and reliability of on-site inspection operations, and possessing good practical value and promising prospects for widespread application.

[0036] The detection host 1 involved in this utility model is existing technology, as described in utility model patent publication number CN222124399 U. Those skilled in the art can fully implement it, and no further explanation is needed. Furthermore, the scope of protection of this utility model does not involve improvements to the software or methods.

[0037] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A device for voltage detection of thermal instruments in power plants, comprising a detection host (1), a pressure measuring connector (2) connected to the detection host (1), and a connecting assembly connected to the detection host (1); the detection host (1) is provided with a display screen (3) and buttons (4); characterized in that: The connecting assembly includes a base (5) fixed to the back of the detection host (1), a rotating seat (6) rotatably mounted on the base (5), and two sets of wristband assemblies (7) spaced apart on the rotating seat (6); on the surfaces of the base (5) and the rotating seat (6) adjacent to each other, there are several limiting holes (8) arranged in a circular array with the rotation axis of the rotating seat (6) as the center, and two positioning beads (9) that cooperate with the limiting holes are symmetrically arranged on the rotating seat (6).

2. The device for voltage detection of thermal instruments in power plants according to claim 1, characterized in that: The wristband assembly (7) includes a wristband one (71) fixedly connected to one side of the rotating seat (6), a wristband two (72) fixedly connected to the other side of the rotating seat (6), and a buckle (73) connecting the wristband one (71) and the wristband two (72); the buckle (73) is fixedly connected to the wristband one (71) on one side and is adjustablely connected to the wristband two (72) on the other side.

3. The device for voltage detection of thermal instruments in power plants according to claim 1 or 2, characterized in that: The rotating seat (6) includes a connecting part (61) and an arc-shaped part (62) integral with the connecting part (61).

4. The device for voltage detection of thermal instruments in power plants according to claim 3, characterized in that: The rotating seat (6) has an arc-shaped sponge pad (10) on the surface that contacts the arm.

5. The device for voltage detection of thermal instruments in power plants according to claim 1 or 2, characterized in that: The base (5) is detachably connected to the detection host (1) via a snap-fit ​​structure; the snap-fit ​​structure includes two guide strips (11) symmetrically fixed to the back of the detection host (1) with an inverted L-shaped cross section, and guide grooves (12) set on both sides of the base (5) and cooperating with the guide strips (11); the base (5) is fixedly connected to the detection host (1) via a locking mechanism (13).

6. The device for voltage detection of thermal instruments in power plants according to claim 3, characterized in that: The base (5) is detachably connected to the detection host (1) via a snap-fit ​​structure; the snap-fit ​​structure includes two guide strips (11) symmetrically fixed to the back of the detection host (1) with an inverted L-shaped cross section, and guide grooves (12) set on both sides of the base (5) and cooperating with the guide strips (11); the base (5) is fixedly connected to the detection host (1) via a locking mechanism (13).

7. The device for voltage detection of thermal instruments in power plants according to claim 5, characterized in that: The locking mechanism (13) includes a positioning bead (14) fixed to the base (5) and a limiting hole (15) on the back of the detection host (1).

8. The device for voltage detection of thermal instruments in power plants according to claim 5, characterized in that: The locking mechanism (13) is a locking screw.

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