Portable household appliance electric leakage detection device

Abstract

The utility model discloses a portable household appliance electric leakage detection device in the technical field of electric leakage detection, which comprises a test pencil and a test rod, the lower end of the test pencil is provided with a connecting sleeve, the test rod can be inserted into the connecting sleeve, the inner side wall of the connecting sleeve is provided with a placing groove, and a magnetic ring is arranged in the placing groove. A sliding groove is formed in the side wall of the test rod, a positioning block is slidably installed in the sliding groove, one end of a spring is installed on the side wall of the positioning block, the other end of the spring is installed on the inner side wall of the sliding groove, a positioning groove is formed in the inner side wall of the connecting sleeve, and the positioning block can be inserted into the positioning groove; the test rod arranged in the device is mounted on the test pencil through the connecting sleeve, and the test rod can be taken down from the connecting sleeve, so that the test rod can be replaced conveniently, the test rod can be replaced with a test rod with a proper thickness to complete detection when small gaps in household appliances are detected by the device, and the applicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of leakage current detection technology, specifically a portable household appliance leakage current detection device. Background Technology

[0002] Household appliances mainly refer to various electrical and electronic appliances used in homes and similar places. A test pen is used to test whether the object being tested is charged. There is a neon bulb in the pen body. If the neon bulb lights up during the test, it means that the object is charged or is a live wire. Because of its small size, it is often kept at home to test whether household appliances, sockets, etc. are charged. It can also observe whether household appliances are leaking electricity.

[0003] However, the test rods in existing voltage testers are all fixed structures and cannot be disassembled and replaced. As a result, when it is necessary to test small gaps in home appliances, the test rods of the voltage tester cannot be inserted into the gaps and the test cannot be completed. Utility Model Content

[0004] The purpose of this invention is to provide a portable household appliance leakage current detection device to solve the problem mentioned in the background art that the test rods of existing test pens are all fixed structures and cannot be disassembled and replaced, which makes it impossible to insert the test rods into the gaps when it is necessary to detect small gaps in household appliances, thus failing to complete the detection.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable household appliance leakage current detection device, comprising a test pen and a test rod, wherein a connecting sleeve is installed at the lower end of the test pen, and the test rod can be inserted into the connecting sleeve;

[0006] The inner wall of the connecting sleeve has a placement groove, in which a magnetic ring is installed. The magnetic ring can attract and connect the test rod. The side wall of the test rod has a sliding groove, in which a positioning block is slidably installed. One end of a spring is installed on the side wall of the positioning block, and the other end of the spring is installed on the inner wall of the sliding groove. The inner wall of the connecting sleeve has a positioning groove, in which the positioning block can be inserted.

[0007] As a preferred embodiment of this utility model, the side wall of the connecting sleeve is provided with a through hole, the through hole is connected to the positioning groove, a push rod is slidably installed in the through hole, and a limit block is installed at one end of the push rod located in the positioning groove, the limit block can fit against the side wall of the positioning block.

[0008] As a preferred embodiment of this utility model, a fixing block is installed on the side wall of the test pen, and a slot is opened on the side wall of the fixing block. A spare test rod is installed in the slot. The end of the spare test rod is cross-shaped, and the end of the test rod is straight.

[0009] As a preferred embodiment of this invention, the test pen has a fixing clip installed on its side wall, which can be clamped onto an external belt.

[0010] As a preferred embodiment of this utility model, a connecting groove is provided at the end of the test rod, and an extension part is inserted and installed in the connecting groove, the extension part being able to slide within the connecting groove.

[0011] As a preferred embodiment of this utility model, the test pen is provided with a detection unit, the detection unit is electrically connected to the connecting sleeve, and the test rod can be tightly fitted to the inner wall of the connecting sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The test rod in this device is mounted on the test pen via a connecting sleeve. The test rod can also be removed from the connecting sleeve for easy replacement. This allows the device to be used to test small gaps in household appliances by replacing the test rod with one of appropriate thickness, so that it can be inserted into the gap to complete the test, thus improving the applicability of the device.

[0014] In addition, this device is also equipped with an extension at the end of the test rod, which can be pulled out from the connecting groove to extend the length of the test rod. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this patent;

[0016] Figure 2 This is a schematic diagram of the connecting sleeve structure of this patent;

[0017] Figure 3 This is a schematic diagram of the fixing clip structure of this patent.

[0018] In the diagram: 1 Test pen, 2 Test rod, 3 Connecting sleeve, 4 Placement slot, 5 Magnetic ring, 6 Sliding groove, 7 Positioning block, 8 Spring, 9 Positioning groove, 10 Through hole, 11 Top rod, 12 Limiting block, 13 Fixing block, 14 Slot, 15 Spare test rod, 16 Fixing clamp, 17 Connecting groove, 18 Extension. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3 This utility model provides a technical solution:

[0021] In this technical solution, a portable household appliance leakage current detection device includes a test pen 1 and a test rod 2. The lower end of the test pen 1 is equipped with a connecting sleeve 3, and the test rod 2 can be inserted into the connecting sleeve 3.

[0022] The inner wall of the connecting sleeve 3 is provided with a placement groove 4, and a magnetic ring 5 is installed in the placement groove 4. The magnetic ring 5 can attract and connect the test rod 2. The side wall of the test rod 2 is provided with a sliding groove 6, and a positioning block 7 is slidably installed in the sliding groove 6. One end of a spring 8 is installed on the side wall of the positioning block 7, and the other end of the spring 8 is installed on the inner wall of the sliding groove 6. The inner wall of the connecting sleeve 3 is provided with a positioning groove 9, and the positioning block 7 can be inserted into the positioning groove 9.

[0023] In this technical solution, the voltage tester 1 proposed in this device is existing technology. It detects whether an external object is live by using the detection circuit in the built-in detection unit. The difference between the voltage tester 1 in this device and the existing technology is that the original voltage tester rod is replaced with a connecting sleeve 3. Its internal structure remains unchanged. Therefore, the voltage tester 1's voltage test principle and internal structure are consistent with the existing technology. At the same time, the connecting sleeve 3 is provided so that the test rod 2 can be disassembled and replaced. The test rod 2 and the connecting sleeve 3 fit tightly together. After fitting, the connecting sleeve 3 and the test rod 2 are in a connected state. The current can enter the detection unit in the voltage tester 1 through the test rod 2 and the connecting sleeve 3 to realize leakage detection of external household appliances.

[0024] In some technical solutions, the side wall of the connecting sleeve 3 is provided with a through hole 10, which is connected to the positioning groove 9. A push rod 11 is slidably installed in the through hole 10. A limit block 12 is installed at one end of the push rod 11 located in the positioning groove 9. The limit block 12 can fit against the side wall of the positioning block 7.

[0025] In this technical solution, by providing a sliding push rod 11 in its through hole 10, when the push rod 11 is pushed inward, the push rod 11 can push the positioning block 7 that is stuck in the positioning groove 9, thereby releasing the fixation of the test rod 2, so that the test rod 2 can be pulled out from the connecting sleeve 3 for replacement.

[0026] In some technical solutions, a fixing block 13 is installed on the side wall of the test pen 1, and a slot 14 is opened on the side wall of the fixing block 13. A spare test rod 15 is installed in the slot 14. The end of the spare test rod 15 is cross-shaped, and the end of the test rod 2 is straight.

[0027] In this technical solution, the ends of the test rod 2 and the spare test rod 15 are set in a straight line and a cross shape, respectively, so that the device can also replace a screwdriver, making the device more practical.

[0028] The outer wall of the spare test rod 15 in this paper is also provided with a sliding groove 6, a positioning block 7, and a spring 8, so that the spare test rod 15 can be positioned after it is inserted into the connecting sleeve 3.

[0029] In some technical solutions, a fixing clip 16 is installed on the side wall of the test pen 1, and the fixing clip 16 can be clamped on the external belt.

[0030] In this technical solution, the device can be clamped onto an external belt by the setting of the fixing clip 16, thus making the device easy to carry.

[0031] In some technical solutions, a connecting groove 17 is provided at the end of the test rod 2, and an extension part 18 is inserted and installed in the connecting groove 17. The extension part 18 can slide in the connecting groove 17.

[0032] In this technical solution, the length of the test rod 2 can be increased by setting the extension part 18, so that the test rod 2 can be inserted into a deeper gap.

[0033] In some technical solutions, the test pen 1 is equipped with a detection unit, which is electrically connected to the connecting sleeve 3, and the test rod 2 can be tightly fitted to the inner wall of the connecting sleeve 3.

[0034] In this technical solution, the test rod 2 and the connecting sleeve 3 are tightly fitted together. After the fitting is complete, the connecting sleeve 3 and the test rod 2 are in a connected state. The current can enter the detection unit inside the test pen 1 through the test rod 2 and the connecting sleeve 3, so as to realize the leakage detection of external household appliances.

[0035] Working principle: When the test rod 2 in this device is in contact with the outer casing of the appliance, if the appliance has a leakage current, the current on the appliance casing will enter the detection unit inside the test pen 1 through the test rod 2 and the connecting sleeve 3. After the detection unit detects the current, it will display the current value through the built-in display unit.

[0036] When it is necessary to test some gaps in home appliances, if the test rod 2 is too thick to be inserted, the push rod 11 can be pushed inward. The push rod 11 pushes the positioning block 7 that is stuck in the positioning groove 9, thereby releasing the fixation of the test rod 2. The test rod 2 can then be pulled out of the connecting sleeve 3 for replacement. The thinner spare test rod 15 can be inserted into the connecting sleeve 3, and the home appliance can be tested through the spare test rod 15.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A portable household appliance leakage current detection device, comprising a test pen (1) and a test rod (2), characterized in that: The lower end of the test pen (1) is equipped with a connecting sleeve (3), and the test rod (2) can be inserted into the connecting sleeve (3); The inner wall of the connecting sleeve (3) is provided with a placement groove (4), and a magnetic ring (5) is installed in the placement groove (4). The magnetic ring (5) can adsorb and connect the test rod (2). The side wall of the test rod (2) is provided with a sliding groove (6), and a positioning block (7) is slidably installed in the sliding groove (6). One end of a spring (8) is installed on the side wall of the positioning block (7), and the other end of the spring (8) is installed on the inner wall of the sliding groove (6). The inner wall of the connecting sleeve (3) is provided with a positioning groove (9), and the positioning block (7) can be inserted into the positioning groove (9).

2. The portable household appliance leakage current detection device according to claim 1, characterized in that: The connecting sleeve (3) has a through hole (10) on its side wall. The through hole (10) is connected to the positioning groove (9). A push rod (11) is slidably installed in the through hole (10). A limit block (12) is installed at one end of the push rod (11) located in the positioning groove (9). The limit block (12) can fit against the side wall of the positioning block (7).

3. The portable household appliance leakage current detection device according to claim 1, characterized in that: The test pen (1) has a fixing block (13) installed on its side wall. The fixing block (13) has a slot (14) on its side wall. A spare test rod (15) is inserted into the slot (14). The end of the spare test rod (15) is in the shape of a cross, and the end of the test rod (2) is in the shape of a straight line.

4. The portable household appliance leakage current detection device according to claim 1, characterized in that: The test pen (1) has a fixing clip (16) installed on its side wall, which can be clamped onto an external belt.

5. A portable household appliance leakage current detection device according to claim 1, characterized in that: The test rod (2) has a connecting groove (17) at its end, and an extension part (18) is inserted into the connecting groove (17). The extension part (18) can slide within the connecting groove (17).

6. A portable household appliance leakage current detection device according to claim 1, characterized in that: The test pen (1) is equipped with a detection unit, which is electrically connected to the connecting sleeve (3). The test rod (2) can be tightly fitted to the inner wall of the connecting sleeve (3).

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