Adjustable short circuit device and system

Abstract

The utility model relates to the technical field of electric power safety maintenance, in particular to an adjustable short circuit device and system. The adjustable short circuit device comprises a shell which comprises a first through groove and a second through groove, and the second through groove penetrates through the shell and divides the shell into two parts; the two sliding rail pieces are symmetrically arranged in the first through groove; and the at least two probes penetrate through the second through groove and are in sliding fit with the sliding rail piece. Through cooperative use of the whole device, a worker can easily extend into a gap between the temperature controllers, various signal short circuits are realized, various tests such as a tripping signal logic verification test are ensured to be smoothly carried out, the operation is convenient, time and labor are saved, and the working efficiency and the safety coefficient are improved.

Description

Technical Field

[0001] This utility model relates to the field of power safety maintenance technology, and in particular to an adjustable short-circuit device and system. Background Technology

[0002] In large hydroelectric power plants, due to the enormous size of the turbine, numerous temperature-sensing resistors are often required to monitor the temperature of various parts of the turbine. These temperatures are then transmitted to the power plant's computer monitoring system via signal conversion. However, since the computer monitoring system data needs to be viewed on a system computer monitor, on-site maintenance and repair personnel cannot directly observe the temperature values ​​of each part. Therefore, temperature controllers are added between the temperature-sensing resistors and the computer monitoring system to directly reflect the temperature values ​​of certain parts. At the hydroelectric power plant site, these temperature-sensing resistors are typically arranged in rows on the doors of the turbine and generator instrument cabinets. Because cable trays are also distributed in the gaps between the temperature controllers behind the cabinet doors, the space between the temperature controllers behind the cabinet doors is quite narrow. When maintenance personnel perform various tests on the temperature controllers, such as trip signal logic verification tests, they often short-circuit the temperature controller terminals with jumper wires. Due to the narrow space and the fact that jumper wires are made of soft and unpredictable materials, this type of work requires highly experienced maintenance personnel, is time-consuming, difficult, and can easily cause mechanical injury in the confined space. Therefore, it is urgent to develop a signal shorting device specifically for instrument cabinets. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] In view of the problem that the space between the temperature controllers in the above or existing technologies is too narrow, making it difficult for operators to operate, this utility model is proposed.

[0005] Therefore, the purpose of this invention is to provide an adjustable shorting device.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an adjustable shorting device, characterized in that: it includes a housing, including a first through groove and a second through groove, the second through groove penetrating the housing and dividing the housing into two parts; two slide rails symmetrically arranged inside the first through groove; and at least two probes, the probes penetrating the second through groove and slidingly engaging with the slide rails.

[0007] In a preferred embodiment of the adjustable shorting device of this utility model, the extension directions of the first through groove and the second through groove are perpendicular to each other.

[0008] In a preferred embodiment of the adjustable shorting device of this utility model, the probe includes a slider fixedly connected to the probe and an insulating cap fixedly disposed on the top of the probe.

[0009] In a preferred embodiment of the adjustable shorting device of this utility model, grooves are provided on opposite sides of the two slide rails, and the slides slide in cooperation with the grooves.

[0010] In a preferred embodiment of the adjustable shorting device of this utility model, the probe has a threaded groove at its top, the telescopic rod is threadedly engaged with the threaded groove, and the insulating cap is fixedly disposed at the top of the telescopic rod.

[0011] In a preferred embodiment of the adjustable shorting device of this utility model, the slide rail, the probe, and the slide plate are made of copper, and the housing is made of plastic.

[0012] As a preferred embodiment of the adjustable shorting device of this utility model, at least one elastic element is further provided between the slide rail and the inner wall of the first through groove.

[0013] In a preferred embodiment of the adjustable shorting device of this utility model, the elastic element is a spring.

[0014] In a preferred embodiment of the adjustable shorting device of this utility model, the elastic element is a diaphragm.

[0015] To solve the above-mentioned technical problems, the present invention also provides the following technical solution: an adjustable shorting system includes an adjustable shorting device.

[0016] The beneficial effects of this utility model are: the coordinated use of the entire device allows workers to easily reach into the gaps between the temperature controllers to achieve various signal short circuits, ensuring the smooth progress of various tests such as trip signal logic verification tests. It is easy to operate, saves time and effort, improves work efficiency, and increases the safety factor. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a schematic diagram of the adjustable shorting device.

[0019] Figure 2 This is a schematic diagram of the adjustable shorting device from another angle.

[0020] Figure 3 This is a cross-sectional view of the adjustable shorting device. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0024] Reference Figure 1 and Figure 2 As the first embodiment of this utility model, this embodiment provides an adjustable shorting device, which includes a housing 1, a slide rail 2, and a probe 3.

[0025] Specifically, the housing 1 includes a first through groove 11 and a second through groove 12, the second through groove 12 penetrating the housing 1 and dividing it into two parts; two slide rails 2, symmetrically arranged inside the first through groove 11; and at least two probes 3, the probes 3 penetrating the second through groove 12 and slidingly engaging with the slide rails 2. The extension directions of the first through groove 11 and the second through groove 12 are perpendicular to each other. The housing 1 is a cuboid shell, the first through groove 11 is a horizontal groove opened inside the housing 1, and the second through groove 12 is a vertical groove penetrating the entire housing 1 from top to bottom. A portion of the space in the first through groove 11 and the second through groove 12 overlaps. The length of the second through groove 12 is slightly shorter than the length of the housing 1. The first through groove 11 is used to place the slide rails 2, and the second through groove 12 is used for the probes to slide back and forth. The entire device can be symmetrically disassembled into two parts by the second through groove 12, and the two parts are connected and fastened by screws, facilitating repeated disassembly and reassembly.

[0026] Furthermore, the probe 3 includes a slider 31 fixedly connected to the probe 3 and an insulating cap 32 fixedly disposed on the top of the probe 3. Grooves 21 are formed on opposite sides of the two slide rails 2, and the slider 31 slides into the grooves 21. The probe 3 is cylindrical with a spherical contact point at its tip. The slider 31 is cuboid, and the probe 3 and slider 31 are integrally welded to a cross-shaped structure. The slide rails 2 are cuboid structures, and the grooves 21 serve as the sliding tracks for the probe 3. The outer side of the slider 31 fits against the grooves 21. The back-and-forth sliding of the probe 3 adjusts the distance between the two probes 3 to accommodate terminals at different positions. To increase the fit between the slider 31 and the grooves 21, at least one elastic element 13 is also provided between the slide rail 2 and the inner wall of the first through groove 11.

[0027] Furthermore, the elastic element 13 is a spring, which provides elastic support and pressure to ensure close contact between the probe 3 and the slide rail 2, enhance the stability, reliability and ease of operation of the device, while reducing mechanical wear and extending the service life of the device.

[0028] The probe 3 has a threaded groove 311 on its top, and the telescopic rod 312 is threaded into the threaded groove 311. The insulating cap 32 is fixed on the top of the telescopic rod 312. The length of the probe 3 can be adjusted by rotating the telescopic rod 312 to adapt to different types of terminal blocks.

[0029] It should be noted that the slide rail 2, probe 3, and slide plate 31 are made of copper, while the housing 1 is made of plastic. Since copper is conductive, when the contact at the bottom of probe 3 contacts the terminal, a conductive loop will be formed between the terminal, probe 3, slide plate 31, slide rail 2, another slide plate 31, and another probe 3, thus achieving a short circuit.

[0030] When using the device, first check that the shorting device is in good condition and all parts are intact. Then, use a multimeter to check if the two contacts of probe 3 on the shorting device are conductive. Next, refer to the drawings and operating instructions to determine the signal circuit that needs to be shorted. Adjust the distance between the two probes 3 using the insulating cap 32 to align them with the signal contacts. Insert the adjusted shorting device into the gap of the thermostat and place it on top of the thermostat terminal block. The shorting device's own weight will cause the probes 3 to contact the thermostat terminals, forming a conductive circuit and achieving the circuit shorting function. When encountering different types of terminal blocks, the telescopic rod 312 can be rotated to extend or shorten the probes 3 as needed.

[0031] In summary, this device allows for easy short-circuiting of various signals, saving time and effort and improving work efficiency.

[0032] As an alternative embodiment, unlike the previous embodiment, this embodiment provides a shorting device with a diaphragm.

[0033] Specifically, the housing 1 has a horizontal first through groove 11 and a vertical second through groove 12 inside. The second through groove 12 divides the housing 1 symmetrically into two parts, which are connected by a snap-fit. Two slide rails 2 are symmetrically arranged in the first through groove 11, and each side has a groove 21. Two probes 3 pass through the second through groove 12, and the slide plate 31 slides in contact with the groove 21 of the slide rail 2. The ball-shaped contact at the bottom of the probe 3 is connected to the terminal of the thermostat, and the insulating cap 32 at the top of the sliding probe 3 makes the distance between the two probes 3 the same as the distance between the two terminals.

[0034] Furthermore, such as Figure 3 At least one elastic element 13 is provided between the slide rail 2 and the inner wall of the first through groove 11. The elastic element 13 is a diaphragm, which can provide uniform elastic support so that the slide 31 and the slide rail 2 fit tightly together.

[0035] The probe 3 has a threaded groove 311 at the top, and the telescopic rod 312 is threaded into the threaded groove 311. The insulating cap 32 is fixedly installed on the top of the telescopic rod 312. Rotating the insulating cap 32 causes the telescopic rod 312 to rise and the length of the probe 3 to extend. Rotating the insulating cap 32 in the opposite direction causes the telescopic rod 312 to fall and the length of the probe 3 to shorten.

[0036] It should be noted that the slide rail 2, probe 3, and slide plate 31 are made of copper, so the slide rail 2, probe 3, slide plate 31, and the terminals on the temperature controller are all conductive and can form a short circuit.

[0037] When in use, push the insulating cap 32 to make the probe 3 slide on the slide rail 2, confirm the signal circuit that needs to be shorted, slide the two probes 3 to the correct distance, and then insert the device into the gap of the temperature controller so that the ball contact of the probe 3 contacts the terminal to be tested, forming a conductive circuit and achieving shorting.

[0038] In summary, the elastic element 13 enhances stability and contact reliability, while the telescopic rod allows the device to adapt to signal contacts at different depths.

[0039] As an alternative embodiment, unlike the previous embodiment, this embodiment provides a shorting device for a scalable probe.

[0040] Specifically, the adjustable shorting device includes at least two probes 3. When multiple shorting signals are required, the number of probes 3 can be increased according to the number of shorting signals, so that multiple terminals can be shorted at the same time to realize the linkage logic verification of multiple trip signals.

[0041] Furthermore, the only exposed conductor on the outside of the device is the probe 3, which can prevent false signal activation during short circuits and increase reliability. Except for the exposed probe 3, the rest of the external surface is made of insulating material, which has good insulation performance and can prevent electric shock to personnel. The device is small and flexible, which can prevent workers from being scratched by the wire trough.

[0042] The rest of the structure is the same as in the above embodiments.

[0043] In summary, the number of probes 3 can be flexibly increased according to the number of shorted signals, making it suitable for shorting requirements of complex signal circuits.

[0044] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0045] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0046] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An adjustable shorting device, characterized in that: include, The housing (1) includes a first through groove (11) and a second through groove (12), the second through groove (12) penetrating the housing (1) and dividing the housing (1) into two parts; Two slide rails (2) are symmetrically arranged inside the first through groove (11); At least two probes (3) are provided, which penetrate the second through groove (12) and slide in cooperation with the slide rail (2).

2. The adjustable shorting device as described in claim 1, characterized in that: The extension directions of the first through groove (11) and the second through groove (12) are perpendicular to each other.

3. The adjustable shorting device as described in claim 1 or 2, characterized in that: The probe (3) includes a slider (31) fixedly connected to the probe (3) and an insulating cap (32) fixedly disposed on the top of the probe (3).

4. The adjustable shorting device as described in claim 3, characterized in that: The two slide rails (2) have grooves (21) on opposite sides, and the slide (31) slides in cooperation with the grooves (21).

5. The adjustable shorting device as described in claim 3, characterized in that: The probe (3) has a threaded groove (311) at the top, and the telescopic rod (312) is threaded into the threaded groove (311). The insulating cap (32) is fixedly installed on the top of the telescopic rod (312).

6. The adjustable shorting device as described in claim 5, characterized in that: The slide rail (2), the probe (3), and the slide plate (31) are made of copper, and the housing (1) is made of plastic.

7. The adjustable shorting device as described in claim 6, characterized in that: At least one elastic element (13) is also provided between the slide rail (2) and the inner wall of the first through groove (11).

8. The adjustable shorting device as described in claim 7, characterized in that: The elastic element (13) is a spring.

9. The adjustable shorting device as described in claim 8, characterized in that: The elastic element (13) is a diaphragm.

10. An adjustable short-circuit system, characterized in that: Includes the adjustable shorting device as described in any one of claims 1 to 9.

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