Withstand voltage tester for wire rod

Abstract

The utility model belongs to the technical field of testers, and particularly relates to a wire withstand voltage tester, which comprises a withstand voltage tester body and a first connecting assembly, the first connecting assembly is inserted into one end of the withstand voltage tester body, a second connecting assembly is inserted into one end of the withstand voltage tester body, and the second connecting assembly is connected with the other end of the withstand voltage tester body. The second connecting assembly comprises a testing head and a second connecting lead, and one end of the testing head is fixedly connected with the second connecting lead. According to the utility model, the withstand voltage tester body applies a certain voltage to a cable so as to detect the withstand voltage performance of the cable, and the protection cover is arranged outside the test head and protects the test head, thereby preventing the end part of the first connection assembly and the end part of the test head from being damaged by mistaken touch during testing, and preventing the protection cylinder from moving backwards during wiring. The extrusion flange extrudes the normally-closed push-type switch, at the moment, the normally-closed push-type switch is pressed to be disconnected, that is, when the end portion of the probe is exposed, the probe is not electrified, and safety is improved.

Description

Technical Field

[0001] This utility model belongs to the field of testing instrument technology, specifically relating to a wire withstand voltage tester. Background Technology

[0002] The wire withstand voltage test is a high-voltage test conducted on wires to verify whether their insulation performance meets the requirements, ensuring that the wires can safely and reliably transmit electrical energy during normal use. The test steps include connecting the equipment, setting parameters, starting the test, and recording the results. Safety must be the top priority, the test must be accurate, the parameters must be set reasonably, and the records must be complete. The wire withstand voltage test is a very important test in electrical engineering, used to evaluate the electrical performance and safety of wires, cables, and other wires under rated voltage.

[0003] When testing cables, the tester needs to apply a high voltage to the cable. The testers used in this way usually have a long exposed section at both ends that are connected to the cable. In actual operation, when the end is energized, the exposed section is easily touched, which can easily cause a short circuit and poses a certain danger. Utility Model Content

[0004] The purpose of this invention is to provide a wire withstand voltage tester that can protect the test head and prevent accidental contact with the end of the first connecting component and the end of the test head during testing, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wire withstand voltage tester, comprising a withstand voltage tester body and a first connecting component, the first connecting component being inserted into one end of the withstand voltage tester body, a second connecting component being inserted into one end of the withstand voltage tester body, the second connecting component comprising a test head and a second connecting lead, one end of the test head being fixedly connected to the second connecting lead, one end of the second connecting lead being inserted into one end of the withstand voltage tester body, a protective cover being slidably connected to the side wall of the test head, and a spring being provided between the test head and the protective cover.

[0006] Furthermore, the first connection component includes a first connection lead, one end of which is fixedly connected to a wire clamp, and the other end of which is plugged into one end of the withstand voltage tester body.

[0007] Furthermore, the test head includes an insulating handle, one end of which is fixedly connected to a probe, and a normally closed push-button switch is provided on the side wall of the insulating handle. The probe is electrically connected to a second connecting lead through the normally closed push-button switch.

[0008] Furthermore, a ring is fixedly connected to the side wall of the insulating handle, and the spring is sleeved on the side wall of the insulating handle, with one end of the spring fixedly connected to one end of the ring.

[0009] Furthermore, the second connecting lead includes a sliding sleeve disposed outside the insulating handle, one end of the sliding sleeve being fixedly connected to a protective cylinder, one end of the insulating handle being slidably connected inside the protective cylinder, and one end of the spring being in contact with one end of the inner wall of the sliding sleeve.

[0010] Furthermore, the side wall of the insulating handle is provided with equally spaced sliding grooves, one end of which is provided with an arc-shaped groove, and the inner wall of the protective cylinder is fixedly connected with equally spaced sliders, and several sliders are slidably connected inside several sliding grooves respectively.

[0011] Furthermore, one end of the inner wall of the sliding sleeve is fixedly connected to a pressing flange, the longitudinal section of which is wedge-shaped.

[0012] Furthermore, one end of the outer wall of the protective cylinder is threadedly connected to a threaded cylinder, one end of the threaded cylinder is fixedly connected to a diaphragm cylinder, and one end of the protective cylinder is fixedly connected to a limiting flange, which is disposed inside the diaphragm cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the withstand voltage tester body applies a certain voltage to the cable to detect the withstand voltage performance of the cable. The protective cover is set outside the test head to protect the test head and avoid accidental contact with the end of the first connecting component and the end of the test head during the test, thus preventing damage. When wiring, the protective cylinder moves backward and the extrusion flange extrudes the normally closed push-button switch. At this time, the normally closed push-button switch is pressed and the circuit is broken. That is, when the end of the probe is exposed, the probe is not energized, thus improving safety. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a front view of the present invention;

[0016] Figure 3 This is an exploded view of the second connecting component of this utility model.

[0017] The attached diagram lists the components represented by each number as follows:

[0018] 1. Withstand voltage tester body; 2. First connecting assembly; 21. First connecting lead; 22. Wire clamp; 3. Second connecting assembly; 31. Test head; 311. Insulating handle; 312. Probe; 313. Normally closed push-button switch; 314. Ring; 315. Slide groove; 316. Arc groove; 32. Second connecting lead; 33. Protective cover; 331. Sliding sleeve; 332. Protective cylinder; 333. Slider; 334. Threaded cylinder; 335. Limiting flange; 336. Aperture cylinder; 337. Extrusion flange; 34. Spring. Detailed Implementation

[0019] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0020] like Figure 1-3 As shown, a wire withstand voltage tester includes a withstand voltage tester body 1 and a first connecting component 2. The first connecting component 2 is inserted into one end of the withstand voltage tester body 1. A second connecting component 3 is inserted into one end of the withstand voltage tester body 1. The second connecting component 3 includes a test head 31 and a second connecting lead 32. One end of the test head 31 is fixedly connected to the second connecting lead 32, and one end of the second connecting lead 32 is inserted into one end of the withstand voltage tester body 1. A protective cover 33 is slidably connected to the side wall of the test head 31, and a spring 34 is provided between the test head 31 and the protective cover 33.

[0021] According to the above structure, during use, the two ends of the cable are connected to one end of the first connecting component 2 and one end of the test head 31, respectively, thereby connecting the cable to the withstand voltage tester body 1. The withstand voltage tester body 1 applies a certain voltage to the cable to test the withstand voltage performance of the cable. The protective cover 33 is set outside the test head 31 to protect the test head 31 and prevent accidental contact with the end of the first connecting component 2 and the end of the test head 31 during testing, thus avoiding damage.

[0022] like Figure 2 and 3 As shown, the first connecting component 2 includes a first connecting lead 21, one end of which is fixedly connected to a wire clamp 22, and the other end of the first connecting lead 21 is inserted into one end of the withstand voltage tester body 1. The test head 31 includes an insulating handle 311, one end of which is fixedly connected to a probe 312. A normally closed push-button switch 313 is provided on the side wall of the insulating handle 311, and the probe 312 is electrically connected to the second connecting lead 32 through the normally closed push-button switch 313.

[0023] According to the above structure, when in use, the wire clamp 22 is clamped on one end of the cable, and the other end of the cable is wrapped around one end of the probe 312, thereby connecting the cable to the withstand voltage tester body 1.

[0024] like Figure 3 As shown, a ring 314 is fixedly connected to the side wall of the insulating handle 311, and a spring 34 is sleeved on the side wall of the insulating handle 311. One end of the spring 34 is fixedly connected to one end of the ring 314. The second connecting lead 32 includes a sliding sleeve 331 disposed outside the insulating handle 311. One end of the sliding sleeve 331 is fixedly connected to a protective cylinder 332. One end of the insulating handle 311 is slidably connected inside the protective cylinder 332, and one end of the spring 34 is in contact with one end of the inner wall of the sliding sleeve 331.

[0025] According to the above structure, during normal use, the protective sleeve 332 covers the outside of the probe 312, thereby protecting the probe 312 and preventing accidental contact with the probe 312.

[0026] like Figure 3 As shown, the side wall of the insulating handle 311 is provided with equally spaced sliding grooves 315, and one end of the sliding groove 315 is provided with an arc-shaped groove 316. The inner wall of the protective cylinder 332 is fixedly connected with equally spaced sliders 333. Several sliders 333 are slidably connected inside several sliding grooves 315 respectively. One end of the inner wall of the sleeve 331 is fixedly connected with a pressing flange 337, and the longitudinal section of the pressing flange 337 is wedge-shaped.

[0027] According to the above structure, when connecting the cable, the protective cylinder 332 is pulled backward, and the protective cylinder 332 compresses the spring 34. When the slider 333 slides to the end of the groove 315, the protective cylinder 332 is rotated to make the slider 333 slide into the inside of the arc groove 316, thereby positioning the protective cylinder 332. At this time, the end of the probe 312 is exposed, which is convenient for connection. When the protective cylinder 332 moves backward, the compression flange 337 compresses the normally closed push switch 313. At this time, the normally closed push switch 313 is pressed and the circuit is broken. That is, when the end of the probe 312 is exposed, the probe 312 is not energized. After the wiring is completed, the protective cylinder 332 is rotated in the opposite direction to unscrew the slider 333 from the inside of the arc groove 316. Then, the protective cylinder 332 is released and, under the push of the spring 34, the protective cylinder 332 returns to its original position and covers the probe 312.

[0028] like Figure 3 As shown, a threaded cylinder 334 is threaded to one end of the outer wall of the protective cylinder 332, a diaphragm cylinder 336 is fixedly connected to one end of the threaded cylinder 334, and a limiting flange 335 is fixedly connected to one end of the protective cylinder 332. The limiting flange 335 is located inside the diaphragm cylinder 336.

[0029] According to the above structure, the end of the protective cylinder 332 can be extended and retracted. When performing simple temporary tests, the limiting flange 335 can be twisted backward so that the end of the probe 312 is exposed for a short distance. The end of the probe 312 can be directly contacted with the cable by holding the insulating handle 311, which improves the convenience of testing.

[0030] The working principle of this utility model is as follows: In use, the wire clamp 22 is clamped on one end of the cable, and the other end of the cable is wrapped around one end of the probe 312, thereby connecting the cable to the withstand voltage tester body 1. During normal use, the protective cylinder 332 covers the outside of the probe 312 to protect the probe 312 and prevent accidental contact. When connecting the cable, the protective cylinder 332 is pulled backward. When the protective cylinder 332 moves, it compresses the spring 34. When the slider 333 slides to the end of the groove 315, the protective cylinder 332 is rotated to make the slider 333 slide into the inside of the arc groove 316, thereby positioning the protective cylinder 332. At this time, the end of the probe 312 is exposed for easy connection. When the protective cylinder 332 is pulled backward... When moving, the compression flange 337 compresses the normally closed push-button switch 313, at which point the normally closed push-button switch 313 is pressed and the circuit is broken. That is, when the end of the probe 312 is exposed, the probe 312 is not energized. After the wiring is completed, the protective cylinder 332 is rotated in the reverse direction to unscrew the slider 333 from the inside of the arc groove 316. Then, the protective cylinder 332 is released and, under the push of the spring 34, the protective cylinder 332 returns to its original position and covers the probe 312. The end of the protective cylinder 332 can extend and retract. When performing simple temporary tests, the limiting flange 335 can be twisted backward to expose a short distance of the end of the probe 312. The end of the probe 312 can be directly contacted with the cable by holding the insulated handle 311, which improves the convenience of testing.

[0031] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A wire withstand voltage tester, comprising a withstand voltage tester body (1) and a first connecting assembly (2), characterized in that: The first connecting component (2) is inserted into one end of the pressure withstand tester body (1). The second connecting component (3) is inserted into one end of the pressure withstand tester body (1). The second connecting component (3) includes a test head (31) and a second connecting lead (32). One end of the test head (31) is fixedly connected to the second connecting lead (32). One end of the second connecting lead (32) is inserted into one end of the pressure withstand tester body (1). A protective cover (33) is slidably connected to the side wall of the test head (31). A spring (34) is provided between the test head (31) and the protective cover (33).

2. The wire withstand voltage tester according to claim 1, characterized in that: The first connecting component (2) includes a first connecting lead (21), one end of which is fixedly connected to a wire clamp (22), and the other end of which is plugged into one end of the withstand voltage tester body (1).

3. The wire withstand voltage tester according to claim 2, characterized in that: The test head (31) includes an insulating handle (311), one end of which is fixedly connected to a probe (312). A normally closed push-button switch (313) is provided on the side wall of the insulating handle (311), and the probe (312) is electrically connected to the second connecting lead (32) through the normally closed push-button switch (313).

4. The wire withstand voltage tester according to claim 3, characterized in that: A ring (314) is fixedly connected to the side wall of the insulating handle (311), and a spring (34) is sleeved on the side wall of the insulating handle (311). One end of the spring (34) is fixedly connected to one end of the ring (314).

5. A wire withstand voltage tester according to claim 4, characterized in that: The second connecting lead (32) includes a sliding sleeve (331) disposed outside the insulating handle (311). One end of the sliding sleeve (331) is fixedly connected to the protective cylinder (332). One end of the insulating handle (311) is slidably connected to the inside of the protective cylinder (332). One end of the spring (34) is in contact with one end of the inner wall of the sliding sleeve (331).

6. The wire withstand voltage tester according to claim 5, characterized in that: The side wall of the insulating handle (311) is provided with equally spaced sliding grooves (315), and one end of the sliding groove (315) is provided with an arc groove (316). The inner wall of the protective cylinder (332) is fixedly connected with equally spaced sliders (333), and several sliders (333) are slidably connected inside several sliding grooves (315).

7. A wire withstand voltage tester according to claim 6, characterized in that: One end of the inner wall of the sliding sleeve (331) is fixedly connected to a pressing flange (337), and the longitudinal section of the pressing flange (337) is wedge-shaped.

8. A wire withstand voltage tester according to claim 7, characterized in that: One end of the outer wall of the protective cylinder (332) is threadedly connected to a threaded cylinder (334), one end of the threaded cylinder (334) is fixedly connected to a diaphragm cylinder (336), and one end of the protective cylinder (332) is fixedly connected to a limiting flange (335), which is located inside the diaphragm cylinder (336).

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