Anti-electric shock safety socket

Abstract

The utility model discloses an anti-electric shock safety socket, and relates to the field of socket laying and power utilization safety. Comprising an on-off control device, the control end of the on-off control device is in contact with the lower end of a jack static contact, and when the control end of the on-off control device is not subjected to mechanical action, a trigger part of the on-off control device is disconnected; and when the control end of the on-off control device is mechanically acted, the trigger part of the on-off control device is closed. The two groups of on-off control devices are sequentially connected in series between the jack static contact pieces and the live wire, and the live wire is connected with the corresponding jack static contact pieces only when the two groups of on-off control devices are closed; and if only one group of on-off control devices is closed, the live wire cannot be connected with the corresponding jack static contact piece. According to the design, the function of preventing electric shock is fully realized, and electric shock can be more effectively prevented; and other operations do not need to be carried out during use, and only the plug of the electric appliance needs to be normally plugged, so that the operation can be conveniently carried out in daily use.

Description

Technical Field

[0001] The utility model relates to the field of socket laying and electricity safety, in particular to an electric shock-proof safety socket. Background Art

[0002] With the continuous development and progress of society and the continuous improvement of people's living standards, the requirements for work and living environments are also developing in the direction of comfort, beauty and personalization. More and more electrical equipment and facilities are being installed in various living and working places. In order to improve people's quality of life and meet people's growing demands for material and cultural aspects, decoration design companies follow the principles of convenient and beautiful layout when designing the layout of various power sockets indoors. The position of the power socket is sometimes only about 20cm-30cm above the ground, but this design undoubtedly brings hidden dangers of electric shock to young children. When playing, young children may be electrocuted due to mischief, which may endanger their lives. Therefore, in order to achieve the goal of safety while achieving the principles of convenient and beautiful layout, an anti-electric shock socket has appeared on the market.

[0003] The principle of this kind of anti-electric shock socket is to set a safety protection baffle outside the socket, and put down this safety protection baffle when not in use to cover the powered part of the socket to achieve the purpose of preventing electric shock. However, in actual use, this kind of anti-electric shock socket also has certain problems. First, after the user finishes using the electrical appliance, he unplugs the plug, but often forgets to close the safety protection baffle, which makes the powered part of the socket still exposed to the outside, unable to play a safety protection effect, and is very unsafe. Secondly, when the user plugs in or unplugs the plug, it is often necessary to open or close the safety protection baffle covering it. This operation is very inconvenient, especially when it needs to be operated with one hand, it is often difficult for the user to perform the plugging and unplugging operation.

[0004] Therefore, there is a need to provide a safety socket that can more effectively prevent electric shock and is convenient to operate. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides an anti-electric shock safety socket, comprising at least one group of jack components, wherein each jack in each group of jack components is provided with a jack static contact piece, and also includes an on-off control device;

[0006] The jack static contact piece in any jack in the at least one group of jack assemblies is electrically connected to the wire in the jack, and the wire is a live wire, a neutral wire or a ground wire;

[0007] Each jack is also provided with the on-off control device, wherein each on-off control device in the same group of jack components is connected in series between the jack static contact piece and the live wire in the target jack, and the target jack is the jack in the same group of jack components whose wire is the live wire;

[0008] When an electrical appliance plug is inserted into the jack static contact piece in the same jack assembly, the electrical appliance plug contacts the control end of the corresponding on-off control device, so that each on-off control device is closed to connect the target jack with the live wire.

[0009] Based on the above-mentioned anti-electric shock safety socket, in a possible design, each of the on-off control devices is fixedly arranged below the static contact piece of the corresponding socket in the socket, and the control end of each on-off control device is in contact with the lower end of the corresponding static contact piece of the socket, and when the control end of any on-off control device is subjected to the mechanical action generated by the electrical plug, the trigger part of any on-off control device is closed.

[0010] Based on the above-mentioned anti-electric shock safety socket, in a possible design, any one of the on-off control devices is set to a normally open micro switch, and the normally open micro switch includes a moving contact piece, a moving contact point, a static contact and a base;

[0011] The moving contact piece is used as a control end, wherein the moving contact point is fixedly connected below the moving contact piece, and a static contact point is arranged on the base, and the static contact point is arranged opposite to the moving contact point;

[0012] The static contact and the moving contact serve as a trigger portion, and when the moving contact contacts the static contact, the trigger portion is closed to close any one of the on-off control devices.

[0013] Based on the above-mentioned anti-electric shock safety socket, in a possible design, an insulating gasket is arranged between the moving contact piece and the base, and the moving contact piece, the insulating gasket and the base are fixed into one by a first fastening screw, a second fastening screw is arranged on the base, and the normally open micro switch is fixed in the corresponding socket by the second fastening screw.

[0014] Based on the above-mentioned electric shock protection safety socket, in a possible design, the movable contact piece is covered with a surface insulation layer.

[0015] Based on the above-mentioned electric shock protection safety socket, in a possible design, the static contact and the moving contact are made of silver material, and the moving contact piece is made of beryllium copper alloy.

[0016] Based on the above-mentioned electric shock prevention safety socket, in a possible design, a power-on indication circuit is connected in parallel between the two groups of the jack static contacts, and the power-on indication circuit works when the live wire is connected to the corresponding jack static contact.

[0017] Based on the above-mentioned electric shock protection safety socket, in a possible design, the power-on indication circuit includes an output status indicator light and a current limiting resistor connected in series, and the output status indicator light is embedded in the housing.

[0018] Beneficial effects:

[0019] The electric shock prevention safety socket disclosed by the utility model comprises at least one group of jack components, wherein each jack in each group of jack components is provided with a jack static contact piece, and also comprises an on-off control device, wherein the jack static contact piece is provided correspondingly to the jack, and the on-off control device is correspondingly fixedly provided below the jack static contact piece; and all the on-off control devices are sequentially connected in series between the jack static contact piece and the live wire, and only when all the on-off control devices are closed, the live wire is connected with the corresponding jack static contact piece. In the initial stage, all on-off control devices are disconnected. When the plug of the electrical appliance is inserted into the socket, the metal contact on the plug of the electrical appliance contacts the static contact in the corresponding socket. When it is fully inserted, the top of the metal contact will produce a mechanical action and act on the on-off control device. The control end of the on-off control device is mechanically acted on to control the trigger part of the on-off control device to close, so that all on-off control devices are in a closed state. At this time, the live wire is connected to the static contact of the corresponding socket, the socket is powered on, and the electrical appliance obtains power input; when the plug of the electrical appliance is pulled out of the socket, the on-off control device will automatically reset to the initial stage, that is, all on-off control devices are disconnected. At this time, if you want to close it and power the socket, you must insert a conductor in all corresponding sockets and act on all on-off control devices to close their trigger parts, so that the socket can conduct electricity. This design fully realizes the function of preventing electric shock and can prevent electric shock more effectively; and there is no need to perform other operations when using it, just plug and unplug the electrical appliance plug normally, which can be conveniently operated in daily use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the structure of a double-hole electric shock prevention safety socket in Embodiment 1 of the present utility model;

[0022] Figure 2 The input-output relationship logic diagram of the double-hole electric shock protection safety socket in Embodiment 1 of the present utility model;

[0023] Figure 3 The input and output truth table of the double-hole electric shock protection safety socket in Embodiment 1 of the present utility model;

[0024] Figure 4 It is a circuit diagram of the electric shock protection safety socket in Embodiment 1 and Embodiment 3 of the utility model;

[0025] Figure 5 It is a schematic diagram of the structure of the normally open micro switch in Embodiment 2 and Embodiment 3 of the present utility model;

[0026] Figure 6 It is a schematic diagram of the structure of the socket housing in Embodiment 2 and Embodiment 3 of the present utility model;

[0027] Figure 7 It is a schematic diagram of the power-on indication circuit of the anti-electric shock safety socket in Embodiment 2 and Embodiment 3 of the utility model;

[0028] Figure 8 This is a schematic diagram of the structure of a three-hole electric shock prevention safety socket in Embodiment 3 of the present utility model;

[0029] Fig. 9 The input-output relationship logic diagram of the three-hole electric shock protection safety socket in Embodiment 3 of the present utility model;

[0030] Fig.10 This is the input and output truth table of the three-hole anti-electric shock safety socket in Example 3 of the utility model.

[0031] In the figure, 1. jack static contact; 2. on-off control device; 3. electrical appliance plug; 4. jack; 5. housing; 6. output status indicator light; 7. current limiting resistor; 8. normally open micro switch; 9. moving contact; 10. moving contact; 11. static contact; 12. base; 13. insulating gasket; 14. first fastening screw; 15. second fastening screw; 16. surface insulation layer. DETAILED DESCRIPTION

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the utility model will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation of the utility model.

[0033] It should be understood that although the terms first, second, etc. may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another unit. For example, a first unit can be referred to as a second unit, and similarly, a second unit can be referred to as a first unit without departing from the scope of embodiments of the present invention.

[0034] In the following description, certain details are provided to facilitate a complete understanding of the example embodiments. However, it will be appreciated by those of ordinary skill in the art that the example embodiments may be implemented without these certain details. For example, the system may be shown in a block diagram to avoid obscuring the example with unnecessary details. In other embodiments, well-known processes, structures, and techniques may not be shown in unnecessary detail to avoid obscuring the embodiments.

[0035] Embodiment 1:

[0036] like Figure 1-4 As shown, this embodiment provides an anti-electric shock safety socket, including at least one group of socket assemblies, wherein each socket 4 in each group of socket assemblies is provided with a socket static contact piece 1, and also includes an on-off control device 2; the socket static contact piece 1 in any socket 4 in at least one group of socket assemblies is electrically connected to the wire in any socket, and the wire is a live wire (L), a neutral wire (N) or a ground wire (PE).

[0037] Compared with the traditional socket, the on-off control device 2 enables the safety socket provided in this embodiment to have the effect of being turned off when the electrical appliance plug 3 is not inserted. When the electrical appliance plug 3 is not inserted, the bare metal part of the safety socket in contact with the air, the static contact piece 1, is not charged, so it has the function of preventing electric shock.

[0038] This embodiment provides a safety socket for preventing electric shock, wherein the jack static contact piece 1 is arranged correspondingly to the jack 4, and the jack static contact piece 1 is arranged in two groups, which are electrically connected to the live wire and the neutral wire respectively. That is, the safety socket provided in this embodiment is preferably a double-hole socket. Corresponding to this double-hole socket, the on-off control device 2 is also arranged in two groups, and is fixedly arranged below the jack static contact piece 1. The control end of the on-off control device 2 contacts the lower end of the jack static contact piece 1, and the control end of the on-off control device 2 is used to control its trigger part, specifically: when the control end of the on-off control device 2 is not mechanically acted on, the trigger part of the on-off control device 2 is disconnected; when the control end of the on-off control device 2 is mechanically acted on, the trigger part of the on-off control device 2 is closed. The two groups of on-off control devices 2 are sequentially connected in series between the jack static contact piece 1 and the live wire, and only when both groups of on-off control devices 2 are closed, the live wire is connected to the corresponding jack static contact piece 1; if only one group of on-off control devices 2 is closed, the live wire cannot be connected to the corresponding jack static contact piece 1.

[0039] See also Figure 2 , Figure 3The input-output relationship between the power-on of the socket and the closing of the on-off control device 2 can be considered as a logical "and" relationship. Only when the input end "A" of one group of on-off control devices 2 and the other group of on-off control devices 2 of "B" are both input as "1" and the on-off control device 2 is closed, the output end "Y" socket will output "1" and the socket will be powered on. This design fully realizes the function of preventing electric shock. In real life, when young children are playing or accidentally touching, the conductor is inserted into the two sockets 4 at the same time, and the mechanical action on the control end of the on-off control device 2 makes the probability of the trigger part closing very low. Compared with the existing safety protection baffle, the safety socket in this embodiment can obviously prevent electric shock more effectively. In addition, when using it, the user does not need to perform any other operations. The power can be turned on and off by simply plugging and unplugging the electrical plug 3 normally, which is very convenient for operation in daily use.

[0040] In this field, an electric test pen is often used to test whether the power is on, so the anti-electric shock safety socket in this embodiment needs to be tested, as follows:

[0041] Find two test pens, and use a metal tube about 3 cm long with an inner diameter similar to the diameter of the metal probe of the test pen tip to cover the metal probe of the test pen. Convert the test pens into two long probes for use in order to touch the control end of the on-off control device 2.

[0042] Connect the live and neutral wires of the mains to the double-hole safety socket in this embodiment, insert a modified electrician pen into any socket 4 of the double-hole safety socket, and when it touches the static contact piece 1 of the socket, the neon lamp on the electrician pen does not light up, and the electrician pen is further inserted, and the trigger part is closed when it acts on the control end of the on-off control device 2, and the neon lamp on the electrician pen does not light up and is not powered on; at this time, introduce the second electrician pen and insert it into the other socket 4 of the double-hole safety socket, and when it touches the static contact piece 1 of the socket, the neon lamps on both electrician pen do not light up, and the second electrician pen is further inserted, and the trigger part is closed when it acts on the control end of the on-off control device 2, and the neon lamps on both electrician pen begin to light up and start to power on; repeat this operation and find that the results are consistent. This verifies that the double-hole safety socket in this embodiment can indeed realize the functions in the above technical solution and can effectively prevent electric shock.

[0043] Embodiment 2:

[0044] like Figure 5-7As shown, the present embodiment provides an anti-electric shock safety socket. As a preferred implementation, a power-on indication circuit is connected in parallel between the two groups of the jack static contact pieces 1. The power-on indication circuit works when the live wire is connected to the corresponding jack static contact piece 1. The power-on indication circuit includes an output status indicator light 6 and a current limiting resistor 7 connected in series. The output status indicator light 6 is embedded in the housing 5. The power-on indication circuit can help the user identify whether the safety socket in the present embodiment is powered on. When the safety socket in the present embodiment is powered on, the output status indicator light 6 will light up, prompting the user that the power-on state has been entered.

[0045] The present embodiment provides an anti-electric shock safety socket, as a preferred implementation, the on-off control device 2 is set as a normally open micro switch 8, the normally open micro switch 8 includes a moving contact piece 9, a moving contact 10, a static contact 11 and a base 12; the static contact 11 and the moving contact 10 are used as trigger parts, the static contact 11 is fixedly arranged below the moving contact piece 9, and the moving contact 10 is fixedly arranged on the base 12, and when the unused electrical plug 3 is inserted, the moving contact 10 does not contact the static contact 11, the trigger part is disconnected, and the safety socket in the present embodiment is not energized; when the electrical plug 3 is inserted, the moving contact 10 contacts the static contact 11, the trigger part is closed, and the safety socket in the present embodiment is energized. The control structure of this normally open micro switch 8 is simple, not prone to failure, and low in cost and easy to replace.

[0046] The present embodiment provides an anti-electric shock safety socket, as a preferred implementation, an insulating gasket 13 is provided between the moving contact piece 9 and the base 12, and a first fastening screw 14 is provided above the moving contact piece 9 for fixing the moving contact piece 9, the insulating gasket 13 and the base 12, and a second fastening screw 15 is provided on the base 12 for fixing the normally open micro switch 8. This fixing mode is very simple, and if a fault occurs, it is easy to replace parts and repair. The moving contact piece 9 is covered with a surface insulating layer 16, which is to better protect the safety of the user. Even if the moving contact piece 9 is touched, there is no risk of electric shock.

[0047] The present embodiment provides an anti-electric shock safety socket. As a preferred implementation mode, the static contact 11 and the moving contact 10 are made of silver material. This is because the rated power of the electrical appliances used in daily life and production are different. In order to make the safety socket in the present embodiment have a wider application scenario and a longer service life, the static contact 11 and the moving contact 10 are made of silver material with a larger rated current, higher reliability and conductivity; the moving contact piece 9 is made of beryllium copper alloy, which not only makes the elasticity and conductivity of the moving contact piece 9 better, but also further reduces the product cost of the safety socket in the present embodiment.

[0048] Embodiment 3:

[0049] like Figure 4-10 As shown, this embodiment provides a safety socket to prevent electric shock, and the jack static contact piece 1 is arranged corresponding to the jack 4, and the jack static contact piece 1 is arranged in three groups, which are respectively electrically connected to the live wire L, the neutral wire and the ground wire. That is: the safety socket provided in this embodiment is preferably a three-hole socket. Corresponding to this three-hole socket, the on-off control device 2 is also arranged in three groups, and is fixedly arranged below the jack static contact piece 1. The control end of the on-off control device 2 contacts the lower end of the jack static contact piece 1, and the control end of the on-off control device 2 is used to control its trigger part, specifically: when the control end of the on-off control device 2 is not subjected to mechanical action, the trigger part of the on-off control device 2 is disconnected; when the control end of the on-off control device 2 is subjected to mechanical action, the trigger part of the on-off control device 2 is closed. The three groups of on-off control devices 2 are connected in series between the jack static contact piece 1 and the live wire in sequence, and the live wire is connected to the corresponding jack static contact piece 1 only when the three groups of on-off control devices 2 are closed; if only one or two groups of on-off control devices 2 are closed, the live wire cannot be connected to the corresponding jack static contact piece 1.

[0050] See also Fig. 9 , Fig.10 The input-output relationship between the power-on of the socket and the closing of the on-off control device 2 can be considered as a logical "AND" relationship. Only when the input ends of the first group of on-off control devices 2 "A", the second group of on-off control devices 2 "B" and the third group of on-off control devices 2 "C" are all input as "1" and the on-off control devices 2 are closed, the output end of the "Y" socket will output "1" and the socket will be powered on.

[0051] See also Figure 5 , Figure 6 and Figure 7 The present embodiment provides an anti-electric shock safety socket. As a preferred implementation, a power-on indication circuit is connected in parallel between the two groups of the jack static contact pieces 1. The power-on indication circuit works when the live wire is connected to the corresponding jack static contact piece 1. The power-on indication circuit includes an output status indicator light 6 and a current limiting resistor 7 connected in series. The output status indicator light 6 is embedded in the housing 5. The power-on indication circuit can help the user identify whether the safety socket in the present embodiment is powered on. When the safety socket in the present embodiment is powered on, the output status indicator light 6 will light up, prompting the user that the power-on state has been entered.

[0052] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anti-electric shock safety socket, comprising at least one set of socket components, wherein: Each socket (4) in each socket assembly is provided with a socket static contact (1), and is characterized in that it also includes an on-off control device (2); The jack static contact piece (1) in any jack (4) in the at least one group of jack assemblies is electrically connected to a wire in the jack (4), and the wire is a live wire, a neutral wire or a ground wire; Each socket is also provided with the on-off control device (2), wherein each on-off control device (2) in the same group of socket components is connected in series between the socket static contact piece (1) and the live wire in the target socket, and the target socket is the socket (4) in the same group of socket components whose wire is the live wire; When an electrical appliance plug (3) is inserted into a socket static contact piece (1) in the same socket assembly, the electrical appliance plug (3) contacts the control end of the corresponding on-off control device (2), so that each on-off control device (2) is closed, thereby connecting the target socket to the live wire.

2. The electric shock protection safety socket according to claim 1, characterized in that: Each of the on-off control devices (2) is fixedly arranged below the jack static contact piece (1) in the corresponding jack (4), and the control end of each on-off control device (2) contacts the lower end of the corresponding jack static contact piece (1), and when the control end of any on-off control device (2) is subjected to a mechanical action generated by the electrical appliance plug (3), the trigger part of any on-off control device (2) is closed.

3. The anti-electric shock safety socket according to claim 2, characterized in that: Any one of the on-off control devices (2) is configured as a normally open micro switch (8), and the normally open micro switch (8) comprises a moving contact piece (9), a moving contact point (10), a stationary contact point (11) and a base (12); The movable contact piece (9) serves as a control end, wherein the movable contact point (10) is fixedly connected below the movable contact piece (9), and a stationary contact point (11) is arranged on the base (12), and the stationary contact point (11) and the movable contact point (10) are arranged opposite to each other; The static contact (11) and the moving contact serve as a triggering part, and when the moving contact (10) contacts the static contact (11), the triggering part is closed, so that any one of the on-off control devices (2) is closed.

4. The anti-electric shock safety socket according to claim 3, characterized in that: An insulating gasket (13) is provided between the movable contact piece (9) and the base (12), and the movable contact piece (9), the insulating gasket (13) and the base (12) are fixed together by a first fastening screw (14); a second fastening screw (15) is provided on the base (12), and the normally open micro switch (8) is fixed in the corresponding socket (4) by the second fastening screw (15).

5. The anti-electric shock safety socket according to claim 3, characterized in that: The movable contact piece (9) is covered with a surface insulating layer (16).

6. The anti-electric shock safety socket according to claim 3, characterized in that: The static contact (11) and the moving contact are made of silver material, and the moving contact piece (9) is made of beryllium copper alloy.

7. The anti-electric shock safety socket according to claim 1, characterized in that: A power-on indication circuit is connected in parallel between the two groups of jack static contact pieces (1), and the power-on indication circuit operates when the live wire is connected to the corresponding jack static contact piece (1).

8. The electric shock protection safety socket according to claim 7, characterized in that: The power-on indication circuit comprises an output status indicator light (6) and a current limiting resistor (7) connected in series, and the output status indicator light (6) is embedded in the housing (5).

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