Safety test shorting device

Abstract

The application provides a safety test short circuit device, which comprises test heads, protective sleeves, telescopic mechanisms and short circuit protectors. The test heads are provided in two, and the tail ends of the two test heads are electrically connected through wires. The protective sleeves are made of insulating materials, and each test head is respectively sleeved with a protective sleeve. The inside of the protective sleeve has a moving channel, and the test head is arranged in the moving channel and is in sliding cooperation with the moving channel. The top end of the protective sleeve has an extension opening, and the extension opening is communicated with the moving channel. The telescopic mechanism is connected with the test head and drives the end of the test head to extend out of the extension opening or retract into the inside of the protective sleeve. The short circuit protector is electrically connected with the wire, and the outside of the wire is covered with an insulating sleeve. The application can improve the safety of operation and reduce the damage to personnel and equipment.

Description

Technical Field

[0001] This invention relates to the field of electronic equipment technology, and in particular to a safety test short-circuit device. Background Technology

[0002] When conducting secondary tests on power systems, signal simulation short-circuiting is involved. Improper operation or damage to the test line can cause power supply grounding or short circuit, resulting in component damage, tripping of the upstream power supply, or even personal injury. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention provide a safety testing short-circuit device that improves operational safety.

[0004] This invention provides a safety test short-circuit device, comprising: a test head, a protective sleeve, a telescopic mechanism, and a short-circuit protector. Two test heads are provided, and their tail ends are electrically connected via a wire. The protective sleeve is made of insulating material, and each test head is covered with a protective sleeve. The protective sleeve has an internal moving channel, within which the test head is positioned and slidably fitted. The top of the protective sleeve has an extension opening connected to the moving channel. The telescopic mechanism is connected to the test head and drives the end of the test head to extend beyond the extension opening or retract into the protective sleeve. The short-circuit protector is electrically connected to the wire, which is covered with an insulating sleeve.

[0005] In some embodiments, the telescopic mechanism includes: a sliding plate, a handle, a first end plate and a second end plate, the sliding plate being disposed in the moving channel and slidingly engaging with the moving channel, and the test head being fixedly connected to the side of the sliding plate facing the protrusion.

[0006] The handle is fixedly connected to the other side of the sliding plate and extends out of the tail end of the protective sleeve. The wire extends into the interior of the sliding plate and the handle and is electrically connected to the test head. The handle is made of insulating material. The handle drives the sliding plate to slide along the length of the moving channel.

[0007] The first end plate is fixedly connected inside the moving channel and near the protrusion. A first sliding hole is opened in the center of the first end plate. The test head extends into the sliding hole and slides with the first sliding hole. There is space between the first end plate and the protrusion for the end of the test head to stay. The second end plate is detachably fixedly connected to the tail end of the protective sleeve. A second sliding hole is opened in the center of the second end plate. The handle slides with the second sliding hole. The diameter of the second sliding hole is smaller than the outer diameter of the sliding plate. A spring is fixedly connected between the first end plate and the sliding plate. In the natural state, the end of the test head is located in the space between the first end plate and the protrusion.

[0008] In some embodiments, the short-circuit protector is connected to any of the hand handles.

[0009] In some embodiments, the front of the protective sleeve is a frustum structure, and the outer diameter of the top end of the protective sleeve is smaller than the outer diameter of the tail end of the protective sleeve.

[0010] In some embodiments, the short-circuit protector is embedded in the handle, and an indicator light is provided on the outside of the handle, the indicator light being electrically connected to the short-circuit protector.

[0011] In some embodiments, the insulating material is polytetrafluoroethylene (PTFE).

[0012] In some embodiments, the spring is made of high-carbon steel.

[0013] In some embodiments, the second end plate is detachably fixed to the tail end of the protective sleeve by bolts.

[0014] In some embodiments, a reel is attached to the conductor.

[0015] In some embodiments, the protective sleeve and the wire are connected via an aviation connector. Attached Figure Description

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings. in: Fig. 1 This is a schematic diagram of the internal structure of the safety test short-circuit device according to an embodiment of the present invention; Fig. 2 This is a schematic diagram of the safety test short-circuit device in use according to an embodiment of the present invention; Figure label: 1. Test head; 2. First end plate; 3. Spring; 4. Protective sleeve; 5. Hand handle; 6. Short circuit protector; 7. Indicator light; 8. Second end plate; 9. Wire; 10. Sliding plate. Detailed Implementation

[0017] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0018] The safety test short-circuit device of the present invention is described below with reference to the accompanying drawings.

[0019] like Figs. 1-2As shown in the figure, an embodiment of the present invention proposes a safety test short-circuit device, including: a test head 1, a protective sleeve 4, a telescopic mechanism, and a short-circuit protector 6. Two test heads 1 are provided, and the tail ends of the two test heads 1 are electrically connected by a wire 9. The protective sleeve 4 is made of insulating material, and a protective sleeve 4 is respectively fitted over the outside of each test head 1. The inside of the protective sleeve 4 has a moving channel, and the test head 1 is located in the moving channel and slides in cooperation with the moving channel. The top of the protective sleeve 4 has an extension opening, which is connected to the moving channel. The telescopic mechanism is connected to the test head 1 and drives the end of the test head 1 to extend out of the extension opening or retract into the inside of the protective sleeve 4. The short-circuit protector 6 is electrically connected to the wire 9, and the outside of the wire 9 is covered with an insulating sleeve.

[0020] This invention, through the inclusion of a protective sleeve 4, a telescopic mechanism, and a short-circuit protector 6, improves operational safety and reduces harm to personnel and equipment. When using this type of short-circuit connector for signal simulation, the risk of power circuit grounding or short circuits due to operational factors during signal and command shorting can be avoided. This invention features a reasonable structural design and compact size.

[0021] By incorporating a short-circuit protector 6, this embodiment of the invention can reduce the risk and damage of short circuits and improve the safety of secondary system testing.

[0022] In some embodiments, the telescopic mechanism includes: a sliding plate 10, a handle 5, a first end plate 2 and a second end plate 8. The sliding plate 10 is disposed in the moving channel and slides in cooperation with the moving channel. The test head 1 is fixedly connected to the side of the sliding plate 10 facing the protrusion.

[0023] The handle 5 is fixedly connected to the other side of the sliding plate 10 and extends out of the tail end of the protective sleeve 4. The wire 9 extends into the interior of the sliding plate 10 and the handle 5 and is electrically connected to the test head 1. The handle 5 is made of insulating material. The handle 5 drives the sliding plate 10 to slide along the length of the moving channel.

[0024] The first end plate 2 is fixedly connected inside the moving channel and near the protrusion. The center of the first end plate 2 has a first sliding hole. The test head 1 is inserted into the sliding hole and slides with the first sliding hole. There is space between the first end plate 2 and the protrusion for the end of the test head 1 to stay. The second end plate 8 is detachably fixedly connected to the tail end of the protective sleeve 4. The center of the second end plate 8 has a second sliding hole. The handle 5 slides with the second sliding hole. The diameter of the second sliding hole is smaller than the outer diameter of the sliding plate 10. A spring 3 is fixedly connected between the first end plate 2 and the sliding plate 10. In the natural state, the end of the test head 1 is located in the space between the first end plate 2 and the protrusion.

[0025] When not in use, the end of test head 1 is insulated and retracted inside the protective sleeve 4 due to the elastic force of spring 3, preventing test head 1 from being exposed and avoiding electric shock to personnel who touch the other end of test head 1 while it is energized. In use, the operator holds the two handles 5 with both hands, so that the two protective sleeves 4 are respectively against the two test points. By pressing the handles 5, the end of test head 1 extends out of the protective sleeve 4 and makes contact with the test point, establishing electrical continuity. If the short-circuit test causes excessive inrush current in the circuit or a short circuit, the short-circuit protector 6 will activate, automatically disconnecting the circuit to prevent the fault from escalating and causing personal injury, equipment damage, or tripping of the upstream power supply.

[0026] In some embodiments, the short-circuit protector 6 is connected to any one of the hand handles 5.

[0027] In some embodiments, the front part of the protective sleeve 4 is a frustum structure, and the outer diameter of the top end of the protective sleeve 4 is smaller than the outer diameter of the tail end of the protective sleeve 4.

[0028] In some embodiments, the short-circuit protector 6 is embedded in the handle 5, and an indicator light 7 is provided on the outside of the handle 5. The indicator light 7 is electrically connected to the short-circuit protector 6. The presence or absence of a short circuit can be determined by the illumination of the indicator light 7.

[0029] In some embodiments, the insulating material is polytetrafluoroethylene (PTFE).

[0030] In some embodiments, the spring 3 is made of high-carbon steel. The spring 3 made of high-carbon steel has the characteristics of high strength, high hardness, good elasticity, and high wear resistance.

[0031] In some embodiments, the second end plate 8 is detachably fixed to the tail end of the protective sleeve 4 by bolts. The internal structure of the protective sleeve 4 can be inspected and repaired by disassembling the second end plate 8, which is more convenient.

[0032] In some embodiments, a winding device is connected to the lead wire 9. The length of the lead wire 9 can be adjusted according to the actual distance between the two test sites.

[0033] In some embodiments, the protective sleeve 4 is connected to the wire 9 via a detachable connector. This detachable connection via the detachable connector allows for easy replacement of the wire 9.

[0034] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0039] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A safety test short-circuit device, characterized in that, include: The test head has two parts, and the tail ends of the two test heads are electrically connected by a wire, the wire being covered with an insulating sleeve. The protective sleeve is made of insulating material. Each test head is covered with a protective sleeve. The protective sleeve has a moving channel inside. The test head is placed in the moving channel and slides in cooperation with the moving channel. The top of the protective sleeve has an opening that is connected to the moving channel. A telescopic mechanism is connected to the test head and drives the end of the test head to extend out of the protrusion or retract into the protective sleeve; A short-circuit protector, which is electrically connected to the conductor.

2. The safety test short-circuit device according to claim 1, characterized in that, The telescopic mechanism includes: A sliding plate is disposed within the moving channel and slides in cooperation with the moving channel; the test head is fixedly connected to the side of the sliding plate facing the protrusion. A hand handle is fixedly connected to the other side of the sliding plate and extends out of the tail end of the protective sleeve. The wire extends into the interior of the sliding plate and the hand handle and is electrically connected to the test head. The hand handle is made of insulating material. The hand handle drives the sliding plate to slide along the length direction of the moving channel. A first end plate and a second end plate are connected. The first end plate is fixedly connected inside the moving channel and near the protrusion. A first sliding hole is provided in the center of the first end plate. The test head extends into the sliding hole and slides in cooperation with the first sliding hole. There is space between the first end plate and the protrusion for the end of the test head to rest. The second end plate is detachably and fixedly connected to the tail end of the protective sleeve. A second sliding hole is provided in the center of the second end plate. The handle slides in cooperation with the second sliding hole. The diameter of the second sliding hole is smaller than the outer diameter of the sliding plate. A spring is fixedly connected between the first end plate and the sliding plate. In the natural state, the end of the test head is located in the space between the first end plate and the protrusion.

3. The safety test short-circuit device according to claim 2, characterized in that, The short-circuit protector is connected to any one of the hand handles.

4. The safety test short-circuit device according to claim 1, characterized in that, The front part of the protective sleeve has a frustum structure, and the outer diameter of the top end of the protective sleeve is smaller than the outer diameter of the tail end of the protective sleeve.

5. The safety test short-circuit device according to claim 2, characterized in that, The short-circuit protector is embedded in the handle, and an indicator light is provided on the outside of the handle. The indicator light is electrically connected to the short-circuit protector.

6. The safety test short-circuit device according to claim 1, characterized in that, The insulating material is polytetrafluoroethylene.

7. The safety test short-circuit device according to claim 2, characterized in that, The spring is made of high carbon steel.

8. The safety test short-circuit device according to claim 2, characterized in that, The second end plate is detachably and fixedly connected to the tail end of the protective sleeve by bolts.

9. The safety test short-circuit device according to claim 1, characterized in that, A reel is connected to the conductor.

10. The safety test short-circuit device according to claim 1, characterized in that, The protective sleeve is connected to the wire via a connector.

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