Electrical safety device capable of detecting various household appliances

Abstract

The utility model discloses an electrical safety device capable of detecting various household electrical appliances, which relates to the field of electric leakage detection of household electrical appliances and comprises an electric leakage detector, a telescopic assembly is arranged on one side of the electric leakage detector, a mounting box is mounted at the end of the telescopic assembly, a driving assembly is mounted in the mounting box, and the driving assembly is connected with the telescopic assembly. And the output end of the driving assembly is connected with a worm, a worm gear is rotationally connected into the mounting box, the worm gear and the worm are meshed with each other, and one side of the worm gear is connected with an arc-shaped iron ring. By arranging the worm gears, the worm and the arc-shaped iron rings, when the telescopic assembly stretches out, manual control over opening and closing of the arc-shaped iron rings is not convenient enough, and then when the driving assembly works to drive the worm to rotate, the two sets of worm gears can be driven to rotate relatively, so that the two sets of arc-shaped iron rings can be opened and closed; therefore, the opening and closing of the arc-shaped iron ring are electrically controlled, and the electric leakage detector is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the field of leakage detection of household appliances, in particular to an electrical safety device capable of detecting a variety of household appliances. Background Art

[0002] Household appliances are widely used in our lives. When household appliances are produced, in order to prevent users from encountering dangers after purchasing household appliances, the dangers include electric shock hazards, heat-related hazards, fire hazards, mechanical hazards, energy-related hazards and radiation hazards, etc. The test items mainly include insulation resistance and dielectric strength tests, ground connection tests, fire resistance, temperature rise and overload tests, etc.

[0003] Although household appliances undergo rigorous safety tests before they are shipped out of the factory, each appliance has a safe service life. With continued use by users, some safety problems may arise in the appliances, such as circuit short circuits and damage to internal components. Therefore, after-sales problems with appliances require detection with appropriate equipment in order to repair and detect the safety of the appliances. The most commonly used appliance detection device is the leakage detector, which refers to an instrument used to detect leakage phenomena. It can detect the operating current of current-type electric shock protectors and detect unbalanced leakage currents that are less than the operating current of current-type electric shock protectors. It can also distinguish between leakage voltages that are harmful to the human body and induced voltages that are harmless to the human body, and can effectively detect leakage phenomena in electrical appliances.

[0004] The clamp-type leakage detector uses an iron ring to clamp the neutral wire and the live wire when working. Under normal circumstances, the magnetic field strength generated by the current in the neutral wire and the live wire is the same and the direction is opposite, so the value of the detector is zero. However, when the wire leaks, there is an electric difference between the current of the neutral wire and the live wire, and the corresponding magnetic field strength is also different. The detector will display the magnetic field strength difference and the corresponding current difference, that is, the leakage strength. The iron ring of the clamp-type leakage detector is the key working part. The iron ring can be opened by manual pressing, and then the iron ring clamping sleeve can be set on the outside of the line. However, this clamp-type leakage detector is small in size and can detect lines that can be touched by staff, but it requires the use of escalators and other tools to detect long-distance lines, which makes it inconvenient in actual work. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide an electrical safety device that can detect a variety of household appliances to solve the technical problems mentioned in the above background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electrical safety device capable of detecting a variety of household appliances, comprising a leakage detector, a telescopic component is arranged on one side of the leakage detector, and a mounting box is installed at the end of the telescopic component, a driving component is installed inside the mounting box, and a worm is connected to the output end of the driving component, a worm wheel is rotatably connected inside the mounting box, and the worm wheel and the worm are meshed with each other, and an arc-shaped iron ring is connected to one side of the worm wheel.

[0007] By adopting the above technical solution, by setting a worm wheel, a worm and an arc-shaped iron ring, when the telescopic component is extended, it is not convenient to manually control the opening and closing of the arc-shaped iron ring. Therefore, when the driving component is set to drive the worm to rotate, it will drive the two sets of worm wheels to rotate relative to each other, so that the two sets of arc-shaped iron rings can be opened and closed, thereby realizing electric control of the opening and closing of the arc-shaped iron ring, making the leakage detector more convenient to use.

[0008] The utility model is further configured that the worm gears are provided with two groups, and the two groups of worm gears are symmetrically arranged, and the side surfaces of the two groups of worm gears are connected with arc-shaped iron rings, and the two groups of arc-shaped iron rings are symmetrically arranged.

[0009] By adopting the above technical solution, two groups of worm wheels are arranged to mesh with the worm, so that the rotation of the worm can drive the two groups of arc-shaped iron rings to close or open.

[0010] The utility model is further configured that the telescopic assembly includes a telescopic sleeve fixed on one side of the leakage detector, and two groups of limit rods are arranged inside the telescopic sleeve, an external threaded tube is arranged at the end of the telescopic sleeve, and an inner convex ring is arranged at the end of the external threaded tube.

[0011] By adopting the above technical solution and providing a limit rod, the telescopic rod can slide better in the telescopic sleeve.

[0012] The utility model is further configured that the telescopic assembly includes a telescopic rod rotatably connected to one side of the installation box, and one side of the installation box is provided with an internal threaded tube, and the internal threaded tube and the external threaded tube are threadedly connected.

[0013] By adopting the above technical solution and arranging the external threaded tube to engage with the internal threaded tube, the telescopic sleeve can be fixed together with the installation box.

[0014] The utility model is further configured that an outer convex ring is arranged at the end of the telescopic rod, and a limiting groove matching the limiting rod is arranged on the side surface of the outer convex ring.

[0015] By adopting the above technical solution and providing the limiting groove, the outer convex ring can slide better inside the telescopic sleeve, so that the telescopic rod can slide inside the telescopic sleeve.

[0016] The utility model is further configured that the telescopic rod is movably installed inside the telescopic sleeve, and the telescopic rod can slide inside the telescopic sleeve.

[0017] By adopting the above technical solution, the telescopic rod is movably installed inside the telescopic sleeve, so that the telescopic assembly can be extended or shortened.

[0018] The utility model is further configured such that the outer diameter of the outer convex ring matches the inner diameter of the telescopic sleeve, the outer diameter of the telescopic rod matches the inner diameter of the inner convex ring, and the inner convex ring can limit the outer convex ring.

[0019] By adopting the above technical solution and providing the outer convex ring and the inner convex ring, the telescopic rod can be prevented from slipping out of the telescopic sleeve.

[0020] The utility model is further configured that a spring wire is arranged inside the telescopic component, and the spring wire can connect the leakage detector, the driving component and the arc-shaped iron ring.

[0021] By adopting the above technical solution, a spring wire is provided to connect the leakage detector, the drive component and the arc-shaped iron ring. The spring wire is retractable, and the line can be prevented from being entangled inside the retractable component.

[0022] In summary, the utility model mainly has the following beneficial effects:

[0023] 1. The utility model provides a telescopic assembly. When the telescopic rod in the telescopic assembly extends from the telescopic sleeve, the arc-shaped iron ring can be extended, so that when the staff uses a handheld leakage detector to detect the line, they can detect the line at a longer distance without the help of tools such as escalators, thereby improving work efficiency.

[0024] 2. The utility model provides a worm wheel, a worm and an arc-shaped iron ring. When the telescopic component is extended, it is not convenient to manually control the opening and closing of the arc-shaped iron ring. Therefore, when the driving component is arranged to drive the worm to rotate, the two groups of worm wheels will be driven to rotate relative to each other, so that the two groups of arc-shaped iron rings can be opened and closed, thereby realizing electric control of the opening and closing of the arc-shaped iron ring, making the use of the leakage detector more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the connection between the leakage detector and the telescopic sleeve of the utility model;

[0027] Figure 3 It is a cross-sectional view of the telescopic sleeve of the utility model;

[0028] Figure 4This is a schematic diagram of the connection between the installation box and the telescopic rod of the utility model;

[0029] Figure 5 This is a schematic diagram of the installation box structure of the utility model;

[0030] Figure 6 It is a schematic diagram of the internal structure of the installation box of the utility model.

[0031] In the figure: 1. leakage detector; 2. telescopic assembly; 3. spring wire; 4. mounting box; 5. drive assembly; 6. worm; 7. worm wheel; 8. arc iron ring; 201. telescopic sleeve; 202. external threaded pipe; 203. internal convex ring; 204. limit rod; 205. telescopic rod; 206. external convex ring; 207. limit groove; 208. internal threaded pipe. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0033] The following describes an embodiment of the utility model based on its overall structure.

[0034] An electrical safety device that can detect a variety of household appliances, such as Figure 1-6 As shown, it includes a leakage detector 1, and a telescopic component 2 is arranged on one side of the leakage detector 1. By setting the telescopic component 2, when the telescopic rod 205 in the telescopic component 2 is extended from the telescopic sleeve 201, the purpose of extending the arc iron ring 8 can be achieved, so that when the staff holds the leakage detector 1 to detect the line, they can detect the line at a long distance without the help of tools such as escalators, thereby improving the work efficiency, and the end of the telescopic component 2 is installed with a mounting box 4, the inside of the mounting box 4 is installed with a driving component 5, and the output end of the driving component 5 is connected to a worm gear. Rod 6, the internal rotation of the mounting box 4 is connected with a worm gear 7, and the worm gear 7 and the worm 6 are meshed with each other, and one side of the worm gear 7 is connected with an arc-shaped iron ring 8. By setting the worm gear 7, the worm 6 and the arc-shaped iron ring 8, when the telescopic component 2 is extended, it is not convenient to manually control the opening and closing of the arc-shaped iron ring 8. Then, when the driving component 5 is set to work and drive the worm 6 to rotate, it will drive the two groups of worm gears 7 to rotate relative to each other, so that the two groups of arc-shaped iron rings 8 can be opened and closed, thereby realizing the electric control of the opening and closing of the arc-shaped iron ring 8, making the leakage detector 1 more convenient to use.

[0035] See also Figure 6There are two groups of worm wheels 7, and the two groups of worm wheels 7 are symmetrically arranged. The sides of the two groups of worm wheels 7 are connected with arc-shaped iron rings 8, and the two groups of arc-shaped iron rings 8 are symmetrically arranged. By setting the two groups of worm wheels 7 to mesh with the worm 6, the rotation of the worm 6 can drive the two groups of arc-shaped iron rings 8 to close or open.

[0036] See also Figure 2 and Figure 3 The telescopic assembly 2 includes a telescopic sleeve 201 fixed on one side of the leakage detector 1, and two groups of limit rods 204 are arranged inside the telescopic sleeve 201, an external threaded tube 202 is arranged at the end of the telescopic sleeve 201, and an inner convex ring 203 is arranged at the end of the external threaded tube 202. By setting the limit rod 204, the telescopic rod 205 can slide better in the telescopic sleeve 201.

[0037] See also Figure 4 The telescopic assembly 2 includes a telescopic rod 205 rotatably connected to one side of the mounting box 4, and an internal threaded tube 208 is provided on one side of the mounting box 4, and the internal threaded tube 208 and the external threaded tube 202 are threadedly connected. By setting the external threaded tube 202 to engage with the internal threaded tube 208, the telescopic sleeve 201 can be fixed together with the mounting box 4.

[0038] See also Figure 4 An outer convex ring 206 is provided at the end of the telescopic rod 205, and a limiting groove 207 matching the limiting rod 204 is provided on the side of the outer convex ring 206. By providing the limiting groove 207, the outer convex ring 206 can slide better inside the telescopic sleeve 201, thereby allowing the telescopic rod 205 to slide inside the telescopic sleeve 201.

[0039] See also Figure 1 The telescopic rod 205 is movably installed inside the telescopic sleeve 201. The telescopic rod 205 can slide inside the telescopic sleeve 201. By arranging the telescopic rod 205 to be movably installed inside the telescopic sleeve 201, the telescopic assembly 2 can be extended or shortened.

[0040] See also Figure 2 and Figure 4 The outer diameter of the outer convex ring 206 matches the inner diameter of the telescopic sleeve 201, and the outer diameter of the telescopic rod 205 matches the inner diameter of the inner convex ring 203. The inner convex ring 203 can limit the outer convex ring 206. By setting the outer convex ring 206 and the inner convex ring 203, the telescopic rod 205 can be prevented from slipping out of the telescopic sleeve 201.

[0041] See also Figure 2A spring wire 3 is arranged inside the telescopic component 2, and the spring wire 3 can connect the leakage detector 1, the driving component 5 and the arc iron ring 8. By setting the spring wire 3 to connect the leakage detector 1, the driving component 5 and the arc iron ring 8, the spring wire 3 is retractable, which can prevent the line from being entangled inside the telescopic component 2.

[0042] The working principle of the utility model is as follows: when the leakage detector 1 is needed to detect a long-distance line, the installation box 4 is rotated so that the internal threaded tube 208 is screwed off from the outside of the external threaded tube 202. During the rotation, the installation box 4 and the telescopic rod 205 rotate relative to each other, and then the installation box 4 is pulled to pull the telescopic rod 205 out of the interior of the telescopic sleeve 201. During the pulling-out process, when the outer convex ring 206 slides inside the telescopic sleeve 201, the limiting groove 207 also engages with the limiting rod 204, so that the telescopic sleeve 201 and the telescopic rod 205 cannot rotate relative to each other, while the installation box 4 can rotate at the end of the telescopic rod 205, so that the arc-shaped iron ring 8 can adjust the angle.

[0043] Then, the driving component 5 is controlled by the leakage detector 1 to start working, and the driving component 5 drives the worm 6 to rotate, and then the worm 6 drives the two sets of worm wheels 7 to rotate relatively, so that the two sets of arc-shaped iron rings 8 are opened, and then the two sets of arc-shaped iron rings 8 are sleeved on the outer wall of the circuit to be detected, and then the driving component 5 is reversely driven to close the two sets of arc-shaped iron rings 8, and then the leakage detector 1 is used to detect the circuit. When the telescopic component 2 is extended and shortened, the spring wire 3 inside it can ensure that the driving component 5 and the arc-shaped iron ring 8 are electrically fused with the leakage detector 1.

[0044] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. An electrical safety device capable of detecting a variety of household electrical appliances, comprising a leakage detector (1), characterized in that: A telescopic component (2) is provided on one side of the leakage detector (1), and a mounting box (4) is installed at the end of the telescopic component (2), a driving component (5) is installed inside the mounting box (4), and the output end of the driving component (5) is connected to a worm (6), a worm wheel (7) is rotatably connected inside the mounting box (4), and the worm wheel (7) and the worm (6) are meshed with each other, and an arc-shaped iron ring (8) is connected to one side of the worm wheel (7).

2. An electrical safety device capable of detecting a variety of household appliances according to claim 1, characterized in that: The worm gears (7) are provided in two groups, and the two groups of worm gears (7) are symmetrically arranged. The sides of the two groups of worm gears (7) are both connected with arc-shaped iron rings (8), and the two groups of arc-shaped iron rings (8) are symmetrically arranged.

3. An electrical safety device capable of detecting a variety of household appliances according to claim 1, characterized in that: The telescopic assembly (2) comprises a telescopic sleeve (201) fixed on one side of the leakage detector (1), and two groups of limit rods (204) are arranged inside the telescopic sleeve (201); an external threaded tube (202) is arranged at the end of the telescopic sleeve (201), and an inner convex ring (203) is arranged at the end of the external threaded tube (202).

4. An electrical safety device capable of detecting a variety of household appliances according to claim 3, characterized in that: The telescopic assembly (2) comprises a telescopic rod (205) rotatably connected to one side of the mounting box (4), and an internally threaded tube (208) is provided on one side of the mounting box (4), and the internally threaded tube (208) and the externally threaded tube (202) are threadedly connected.

5. An electrical safety device capable of detecting a variety of household appliances according to claim 4, characterized in that: An outer convex ring (206) is provided at the end of the telescopic rod (205), and a limiting groove (207) matching the limiting rod (204) is provided on the side surface of the outer convex ring (206).

6. An electrical safety device capable of detecting a variety of household appliances according to claim 5, characterized in that: The telescopic rod (205) is movably installed inside the telescopic sleeve (201), and the telescopic rod (205) can slide inside the telescopic sleeve (201).

7. An electrical safety device capable of detecting a variety of household appliances according to claim 6, characterized in that: The outer diameter of the outer convex ring (206) matches the inner diameter of the telescopic sleeve (201), and the outer diameter of the telescopic rod (205) matches the inner diameter of the inner convex ring (203). The inner convex ring (203) can limit the outer convex ring (206).

8. An electrical safety device capable of detecting a variety of household appliances according to claim 1, characterized in that: A spring wire (3) is arranged inside the telescopic component (2), and the spring wire (3) can connect the leakage detector (1), the driving component (5) and the arc-shaped iron ring (8).

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