Short-circuit test pen for electrical test
By designing a short-connected test pen for electrical tests, the combination of insulating test pen, self-locking switch and fuse pipes, the safety hazards and labor intensity of temporary wire short-connection are solved, and the safety and reliability of electrical tests are achieved and signal stability.
Patent Information
- Application Number
- CN202420809673.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-18
AI Technical Summary
In electrical tests, the use of temporary wires as short-connect wires in the prior art has safety hazards, which can easily lead to electric shock to personnel or short-circuiting equipment, and the labor intensity of short-connection for a long time is high and the signal jumps.
A short-circuit test pen for electrical testing is designed, including two insulated test pens, the tail end is connected by wire, the front end is used to contact the electrical signal node, and a self-locking switch and fuse are installed in the electrical circuit. to control circuits on and off and protect equipment and personnel.
Fast and safe short-circuiting is achieved, reducing the risk of electric shock and labor intensity, improving the safety and reliability of electrical tests, and avoiding signal jumps.
Smart Images
Figure CN222259437U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical testing, in particular to a short-circuit test pen used for electrical testing. Background Art
[0002] During electrical testing in large hydropower stations, it is often necessary to short-circuit the two ends of an electrical signal node to simulate the action of an electrical signal. At present, a temporary wire is usually used as a short-circuit wire for the signal node. Damaged insulation of the short-circuit wire or accidental contact of the tester with live parts may cause electric shock. Short-circuiting the wrong terminal may cause a short circuit in the equipment. When an electrical signal needs to simulate an action for a long time, the tester needs to short-circuit the relevant signal terminals for a long time, which is labor-intensive and causes signal jumps. Utility Model Content
[0003] The utility model aims to provide a short-circuit test pen for electrical testing, so as to solve the problems in the prior art of using temporary wires as short-circuit wires, which have potential safety hazards, are likely to cause damage to testers or equipment, cause long-term short-circuiting, have high labor intensity for testers, and cause signal jumps.
[0004] The utility model is realized by adopting the following technical solutions:
[0005] The utility model provides a short-circuit test pen for electrical testing, comprising a first insulation test pen and a second insulation test pen, the tail ends of the two are directly connected by a wire, the front ends of the two are respectively used to contact the two ends of an electrical signal node, the first insulation test pen or the second insulation test pen is provided with a switch, the switch is connected in series in an electrical circuit, and the switch is used to control the on and off of the electrical circuit;
[0006] The first insulation test pen or the second insulation test pen is provided with a fuse, and the fuse is connected in series in the electrical circuit.
[0007] As the preferred technical solution:
[0008] The wire is a silicone wire.
[0009] As the preferred technical solution:
[0010] The switch is a self-locking switch.
[0011] As the preferred technical solution:
[0012] The front ends of the first insulation test pen and the second insulation test pen are provided with connectors, and the connectors can be fixed in the bridge holes of the signal wiring terminals.
[0013] As the preferred technical solution:
[0014] The joint is a threaded joint.
[0015] As the preferred technical solution:
[0016] The first insulation test pen and the second insulation test pen are both in pen shape, and both comprise a pen body, a pen tip and a pen cap, wherein the pen tip and the pen cap are respectively connected to two ends of the pen body.
[0017] As the preferred technical solution:
[0018] The tip of the first insulation test pen is provided with a first threaded joint, and the tip of the second insulation test pen is provided with a second threaded joint. Both the first threaded joint and the second threaded joint are capable of conducting electricity.
[0019] As the preferred technical solution:
[0020] One end of the wire is connected to the pen cap of the first insulation test pen, and the other end of the wire is connected to the pen cap of the second insulation test pen.
[0021] As the preferred technical solution:
[0022] The first insulation test pen and the second insulation test pen are insulated on the outside and conductive on the inside; one end of the wire is electrically connected to the first threaded joint through the first insulation test pen, and the other end of the wire is electrically connected to the second threaded joint through the second insulation test pen.
[0023] As the preferred technical solution:
[0024] The pen cap is detachably connected to the pen body, and the safety tube is arranged inside the pen body.
[0025] As the preferred technical solution:
[0026] The pen cap is connected to the pen body via a thread.
[0027] As the preferred technical solution:
[0028] The first insulation test pen and the second insulation test pen are wrapped with insulating material structures.
[0029] As the preferred technical solution:
[0030] The first insulation test pen and the second insulation test pen have different colors.
[0031] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:
[0032] The utility model discloses a short-circuit test pen for electrical testing, which can quickly and safely short-circuit the two ends of an electrical signal node to simulate the action of a certain electrical signal during the electrical test. The use of an insulating test pen to contact the electrical signal node can effectively reduce the risk of electric shock for testers. The utility model discloses a self-locking switch on the insulating test pen, which is convenient for controlling the on and off of the electrical circuit and is easy to operate. The utility model discloses a fuse on the insulating test pen, which can quickly blow when a short circuit occurs, cut off the electrical circuit, and protect the test equipment and testers. The utility model discloses a threaded joint on the tip of the insulating test pen, which is convenient for testers to fix the insulating test pen to the central bridging hole of the relevant signal terminal, thereby reducing the labor intensity of testers, improving the safety and reliability of electrical testing and on-site work efficiency, and achieving reliable connection through the threaded joint to avoid signal jumps. The utility model discloses a simple structure, easy operation, and easy portability, and can be applied to common wiring terminals. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Figure 1 The utility model is a schematic diagram of the structure of a short-circuit test pen for electrical testing.
[0034] Figure 2 The utility model is an electrical circuit schematic diagram of a short-circuit test pen used for electrical testing.
[0035] Icons: 1-first insulation test pen, 2-second insulation test pen, 3-self-locking switch, 4-fuse tube, 5-silicone wire, 6-first threaded joint, 7-second threaded joint, 8-thread, 9-electrical signal node. DETAILED DESCRIPTION
[0036] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0037] Example 1
[0038] like Figure 1 and Figure 2 As shown, this embodiment proposes a short-circuit test pen for electrical testing, including a first insulation test pen 1 and a second insulation test pen 2. For easy distinction, the two are set to different colors. In this embodiment, the first insulation test pen 1 is black and the second insulation test pen 2 is red.
[0039] The first insulation test pen 1 and the second insulation test pen 2 are both in pen shape, and are wrapped with insulating silicone material to achieve insulation and prevent testers from getting electric shock.
[0040] The first insulation test pen 1 and the second insulation test pen 2 both include a pen body, a pen tip and a pen cap, and the pen tip and the pen cap are connected to two ends of the pen body respectively.
[0041] The tip of the first insulation test pen 1 is provided with a first threaded joint 6 , and the tip of the second insulation test pen 2 is provided with a second threaded joint 7 . Both the first threaded joint 6 and the second threaded joint 7 are capable of conducting electricity.
[0042] The first insulation test pen 1 and the second insulation test pen 2 are connected via a silicone wire 5. In this embodiment, one end of the silicone wire 5 is connected to the pen cap of the first insulation test pen 1, and the other end of the silicone wire 5 is connected to the pen cap of the second insulation test pen 2.
[0043] The first insulation test pen 1 and the second insulation test pen 2 are insulated on the outside, but conductive on the inside. One end of the silicone wire 5 is electrically connected to the first threaded joint 6 through the first insulation test pen 1, and the other end of the silicone wire 5 is electrically connected to the second threaded joint 7 through the second insulation test pen 2, thereby connecting the first insulation test pen 1 and the second insulation test pen 2. When in use, the tips of the first insulation test pen 1 and the second insulation test pen 2 are respectively contacted to the two ends of the electrical signal node 9 to simulate the action of a certain electrical signal.
[0044] Furthermore, in order to conveniently simulate the on or off of an electrical signal, a switch is provided on the first insulation test pen 1 or the second insulation test pen 2, and the switch is connected in series in an electrical circuit, and the on and off of the electrical circuit is controlled by the switch. In this embodiment, the switch is provided on the second insulation test pen 2.
[0045] In this embodiment, the switch preferably adopts a self-locking switch 3. The self-locking switch 3 is closed when pressed once, and is opened when pressed again. The operation is simple, and the on and off of the electrical circuit can be conveniently controlled, thereby reducing the labor intensity of the tester and improving the safety and reliability of the electrical test.
[0046] Furthermore, a fuse 4 is provided on the first insulation test pen 1 or the second insulation test pen 2, and the fuse 4 is connected in series in the electrical circuit. When a short circuit occurs in the electrical circuit, the fuse 4 will quickly blow and cut off the entire electrical circuit, thereby achieving the purpose of protecting the test equipment and testers.
[0047] When the fuse 4 is blown, the electrical circuit cannot form a path, and the fuse 4 needs to be replaced. In this embodiment, the fuse 4 is installed in the pen body of the second insulation test pen 2, and the pen cap of the second insulation test pen 2 is detachably connected to the pen body. After the pen cap is removed, the fuse 4 can be replaced. Preferably, the pen cap is connected to the pen body through a thread 8, and the pen cap is screwed to facilitate operation and replacement.
[0048] The working principle of the utility model is: two insulation test pens are directly contacted to the two ends of the electrical signal node 9, and the conduction or disconnection of the simulated electrical signal is simulated by closing or disconnecting the switch, so as to achieve the purpose of safely and reliably simulating the action of the electrical node.
[0049] The short-circuit test pen for electrical testing provided by the utility model can be applied to common signal wiring terminals.
[0050] The specific method of using the short-circuit test pen for electrical testing provided by the utility model is as follows:
[0051] When simulating the action of an electrical node for a short time, the first insulation test pen 1 is directly in contact with one end of the electrical signal node 9, and the second insulation test pen 2 is in contact with the other end of the electrical signal node 9. The self-locking switch 3 is pressed to close or disconnect the conduction or shutdown of the simulated electrical signal node 9; using the first insulation test pen 1 and the second insulation test pen 2 to contact the conductive part of the electrical signal can reduce the risk of electric shock to personnel.
[0052] When used for a long time, the first insulation test pen 1 can be fixed to the bridge hole in the center of the signal terminal through the first threaded joint 6 of the pen tip, and the second insulation test pen 2 can also be fixed to the bridge hole in the center of the signal terminal through the second threaded joint 7 of the pen tip. The self-locking switch 3 is used to close or disconnect the conduction or shutdown of the simulated electrical signal, thereby reducing the labor intensity of the tester and improving the safety and reliability of electrical testing.
[0053] If a short circuit occurs in the circuit during use, the fuse 4 installed on the second insulation test pen 2 can be quickly blown to cut off the entire electrical circuit. After the fuse 4 is blown, unscrew the tail cap of the second insulation test pen 2 and replace the fuse 4.
[0054] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A short-circuit test pen for electrical testing, characterized in that: It comprises a first insulation test pen and a second insulation test pen, the tail ends of the two are directly connected by a wire, the front ends of the two are respectively used to contact the two ends of the electrical signal node, the first insulation test pen or the second insulation test pen is provided with a switch, the switch is connected in series in the electrical circuit, and the switch is used to control the on and off of the electrical circuit; The first insulation test pen or the second insulation test pen is provided with a fuse, and the fuse is connected in series in the electrical circuit.
2. The short-circuit test pen for electrical testing according to claim 1, characterized in that: The switch is a self-locking switch.
3. The short-circuit test pen for electrical testing according to claim 1, characterized in that: The front ends of the first insulation test pen and the second insulation test pen are provided with connectors, and the connectors can be fixed in the bridge holes of the signal wiring terminals.
4. The short-circuit test pen for electrical testing according to claim 3, characterized in that: The joint is a threaded joint.
5. The short-circuit test pen for electrical testing according to claim 4, characterized in that: The first insulation test pen and the second insulation test pen are both in pen shape, and both comprise a pen body, a pen tip and a pen cap, wherein the pen tip and the pen cap are respectively connected to two ends of the pen body.
6. The short-circuit test pen for electrical testing according to claim 5, characterized in that: The tip of the first insulation test pen is provided with a first threaded joint, and the tip of the second insulation test pen is provided with a second threaded joint. Both the first threaded joint and the second threaded joint are capable of conducting electricity.
7. The short-circuit test pen for electrical testing according to claim 5, characterized in that: One end of the wire is connected to the pen cap of the first insulation test pen, and the other end of the wire is connected to the pen cap of the second insulation test pen.
8. The short-circuit test pen for electrical testing according to claim 6, characterized in that: The first insulation test pen and the second insulation test pen are insulated on the outside and conductive on the inside; one end of the wire is electrically connected to the first threaded joint through the first insulation test pen, and the other end of the wire is electrically connected to the second threaded joint through the second insulation test pen.
9. The short-circuit test pen for electrical testing according to claim 5, characterized in that: The pen cap is detachably connected to the pen body, and the safety tube is arranged inside the pen body.
10. The short-circuit test pen for electrical testing according to any one of claims 1 to 9, characterized in that: The first insulation test pen and the second insulation test pen are wrapped with insulating material structures.