Protective door assembly of safety socket and safety socket

Abstract

The present invention discloses a safety socket protective door assembly and a safety socket. The safety socket protective door assembly includes a two-hole protective door mechanism, comprising a panel, a bottom shell, a neutral wire protective door, and a live wire protective door. The panel and the bottom shell enclose a live wire protective cavity and a neutral wire protective cavity, the neutral wire protective door being disposed within the neutral wire protective cavity, and the live wire protective door being disposed within the live wire protective cavity. The two-hole protective door mechanism also includes a linkage mechanism to enable the neutral wire protective door and the live wire protective door to slide synchronously. The neutral wire protective door has a first drive portion, and the live wire protective door has a second drive portion, the second drive portion being lower than the first drive portion. A plug pin sequentially pushes the first and second drive portions to open the protective doors. The present invention can prevent electric shock caused by foreign objects inserted into the socket.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, in particular to a protective door assembly of a safety socket and the safety socket. Background Art

[0002] The safety of power sockets has always been one of the most important performance characteristics of sockets. Every year, there are endless electric shock accidents caused by children accidentally touching the live wire connector of the socket. How to improve the safety of sockets has also been a research focus of technicians. At present, one solution to improve safety is to set a protective door structure on the socket panel. When the socket is not in use, the protective door closes the socket to prevent conductive objects from accidentally contacting the metal contacts in the socket. When the pins of the plug are inserted, the pins first push open the protective door to open the socket, and then continue to insert the pins into the socket to contact the metal contacts to achieve conduction. However, this structure cannot effectively prevent children from using metal objects such as screwdrivers to push open the protective door and insert them into the socket, causing electric shock accidents. Summary of the Invention

[0003] The main purpose of the present invention is to provide a safety socket protective door assembly and a safety socket, aiming to solve the problem that the existing socket protective door structure cannot eliminate the risk of accidental electric shock.

[0004] In order to achieve the above-mentioned purpose, the protective door assembly of the safety socket proposed in the present invention includes a two-hole protective door mechanism, which includes a panel, a bottom shell, a neutral wire protective door and a live wire protective door; the panel is provided with a first neutral wire jack and a first live wire jack, the bottom shell is provided with a second neutral wire jack opposite to the first neutral wire jack and a second live wire jack opposite to the first live wire jack; the panel and the bottom shell are enclosed to form a live wire protection cavity and a neutral wire protection cavity, the neutral wire protection door is arranged in the neutral wire protection cavity, and the live wire protection door is arranged in the live wire protection cavity; the two-hole protective door mechanism includes a panel, a bottom shell, a neutral wire protective door and a live wire protection door; the panel is provided with a first neutral wire jack and a first live wire jack, the bottom shell is provided with a second neutral wire jack opposite to the first live wire jack; the panel and the bottom shell are enclosed to form a live wire protection cavity and a neutral wire protection cavity, the neutral wire protection door is arranged in the neutral wire protection cavity, and the live wire protection door is arranged in the live wire protection cavity; the two-hole protective door mechanism includes a panel, a bottom shell, a neutral wire protection door and a live wire protection door ... bottom shell, a neutral wire protection cavity and a live wire protection cavity; the two-hole protective door mechanism includes a panel The door mechanism also includes a linkage mechanism to enable the neutral wire protection door and the live wire protection door to slide synchronously; the neutral wire protection door has a first driving part and a neutral wire clearance gap for the neutral wire pin to pass through, and the live wire protection door has a second driving part and a live wire clearance gap for the live wire pin to pass through; the horizontal distance from the upper edge of the second driving part to the live wire clearance gap is smaller than the horizontal distance from the upper edge of the first driving part to the neutral wire clearance gap, and is not smaller than the horizontal distance from the lower edge of the first driving part to the neutral wire clearance gap; and the height of the second driving part is lower than that of the first driving part.

[0005] Preferably, the first driving portion has a first inclined surface, and the second driving portion has a second inclined surface.

[0006] Preferably, the first inclined surface is a curved surface, and the second inclined surface is a flat surface.

[0007] Preferably, a partition is provided between the live wire protection cavity and the neutral wire protection cavity; the linkage mechanism includes a first magnetic component and a second magnetic component, the first magnetic component is fixed to the neutral wire protection door, and the second magnetic component is fixed to the live wire protection door.

[0008] Preferably, the partition and the bottom shell are integrally formed.

[0009] Preferably, the first magnetic component is integrally formed with the neutral line protection door.

[0010] Preferably, a groove is provided on a side of the neutral line protection door close to the partition, and the first magnetic element is fixed in the groove.

[0011] Preferably, a spring is provided in the neutral line protection cavity, one end of the spring abuts against the side plate, and the other end abuts against the neutral line protection door.

[0012] Preferably, the protective door assembly of the safety socket further includes a three-hole protective door mechanism.

[0013] The present invention provides a neutral wire protection cavity and a live wire protection cavity, and provides a neutral wire protection door in the neutral wire protection cavity and a live wire protection door in the live wire protection cavity, so as to avoid the live terminals in the socket from being exposed in the jack, thereby preventing electric shock accidents caused by accidental touch. A first driving part and a second driving part with staggered intervals are provided on the neutral wire protection door and the live wire protection door, and a linkage mechanism is provided to make the neutral wire protection door and the live wire protection door slide synchronously, so that when the plug pin is inserted into the jack, the neutral wire pin first contacts and squeezes the first driving part, thereby pushing the neutral wire protection door to slide; at this time, as the insertion depth of the pin increases, the neutral wire pin contacts and squeezes the first driving part, thereby pushing the neutral wire protection door to slide. The live wire protection door is driven by a linkage mechanism to slide synchronously with the live wire protection door. At or before the end of the driving stroke of the first driving unit, the live wire prong of the plug contacts and presses against the second driving unit, pushing the live wire protection door to slide. After the driving stroke of the first driving unit ends, the live wire protection door, under the action of the linkage mechanism, drives the neutral wire protection door to slide. At the end of the driving stroke of the second driving unit, the passages between the first neutral wire jack and the second neutral wire jack, as well as the passages between the first live wire jack and the second live wire jack, are fully opened, allowing the two prongs of the plug to pass through the protection door assembly and into the socket, thereby connecting the power supply. This invention can effectively prevent electric shock accidents caused by accidentally inserting conductive objects into the sockets.

[0014] The present invention also proposes a safety socket, which includes a protective door assembly, which includes a two-hole protective door mechanism, which includes a panel, a bottom shell, a neutral wire protective door and a live wire protective door; the panel is provided with a first neutral wire jack and a first live wire jack, the bottom shell is provided with a second neutral wire jack opposite to the first neutral wire jack and a second live wire jack opposite to the first live wire jack; the panel and the bottom shell are combined to form a live wire protection cavity and a neutral wire protection cavity, the neutral wire protection door is arranged in the neutral wire protection cavity, and the live wire protection door is arranged in the live wire protection cavity; The two-hole protective door mechanism also includes a linkage mechanism to enable the neutral wire protective door and the live wire protective door to slide synchronously; the neutral wire protective door has a first driving part and a neutral wire clearance gap for the neutral wire pin to pass through, and the live wire protective door has a second driving part and a live wire clearance gap for the live wire pin to pass through; the horizontal distance from the upper edge of the second driving part to the live wire clearance gap is smaller than the horizontal distance from the upper edge of the first driving part to the neutral wire clearance gap, and is not smaller than the horizontal distance from the lower edge of the first driving part to the neutral wire clearance gap; and the height of the second driving part is lower than that of the first driving part. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0016] Figures 1 to 13 FIG1 is a drawing of an embodiment of the present invention, wherein:

[0017] Figure 1 This is an exploded view of the protective door assembly of the safety socket proposed in the present invention;

[0018] Figure 2 and Figure 3 A schematic diagram of a plug inserted into the protective door assembly of the safety socket proposed in the present invention (excluding the panel);

[0019] Figure 4 This is a schematic diagram of the structure of the safety socket proposed in the present invention, wherein the dotted line portion is the housing of the socket;

[0020] Figure 5 This is a schematic structural diagram of the protective door assembly of the safety socket proposed in the present invention;

[0021] Figures 6 to 9 This is a structural schematic diagram of the bottom shell of the protective door assembly of the safety socket proposed in the present invention;

[0022] Figures 10 to 13 This is a schematic structural diagram of the protective door of the protective door assembly of the safety socket proposed in the present invention;

[0023] Figures 14 to 19 FIG1 is a drawing showing another embodiment of the present invention, wherein:

[0024] Figure 14 This is a schematic diagram of the plug proposed in the present invention when inserted into the protective door assembly of the safety socket (excluding the panel);

[0025] Figure 15 and Figure 16 A schematic diagram of the protective door assembly of the safety socket proposed in the present invention;

[0026] Figures 17 to 19 This is a schematic structural diagram of the protective door of the safety socket proposed in the present invention.

[0027] Description of Figure Numbers:

[0028] Label name Label name 100 panel 250 Neutral protection door 101 First neutral line jack 251 groove 102 First FireWire jack 252 First driving unit 200 bottom shell 253 Zero line gap 201 baseplate 254 link 202 Second neutral line jack 260 Fire protection chamber 203 Second FireWire jack 270 Second magnetic element 210 partition 280 Fire protection door 220 Side panels 281 Second driving unit 230 Neutral protection cavity 282 Fire line gives way to gap 240 First magnetic element

[0029] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] The present invention provides a safety socket protective door assembly and a safety socket incorporating the same. The safety socket protective door assembly includes a two-hole protective door mechanism and / or a three-hole protective door mechanism. The two-hole protective door mechanism is a protective door mechanism for protecting the live and neutral wire jacks, and is applicable to both two-hole and three-hole socket bodies.

[0034] Please refer to Figures 1 to 13 , which is the first embodiment proposed by the present invention, the protective door assembly proposed by the present invention includes a two-hole protective door mechanism, which includes a panel 100, a bottom shell 200, a neutral wire protective door 250 and a live wire protective door 280; the panel 100 is provided with a first neutral wire jack 101 and a first live wire jack 102, and the bottom shell 200 is provided with a second neutral wire jack 202 opposite to the first neutral wire jack 101 and a second live wire jack 203 opposite to the first live wire jack 102; the panel 100 and the bottom shell 200 enclose a live wire protection cavity 260 and a neutral wire protection cavity 230, the neutral wire protection door 250 is provided in the neutral wire protection cavity 230, and the live wire protection door 280 is provided in the live wire protection cavity 260; The two-hole protective door mechanism also includes a linkage mechanism to enable the neutral wire protective door 250 and the live wire protective door 280 to slide synchronously; the neutral wire protective door 250 has a first driving part 252 and a neutral wire clearance gap 253 for the neutral wire pin to pass through, and the live wire protective door 280 has a second driving part 281 and a live wire clearance gap 282 for the live wire pin to pass through; the horizontal distance from the upper edge of the second driving part 281 to the live wire clearance gap 282 is smaller than the horizontal distance from the upper edge of the first driving part 252 to the neutral wire clearance gap 253, and is not smaller than the horizontal distance from the lower edge of the first driving part 252 to the neutral wire clearance gap 253; the height of the second driving part 281 is lower than the height of the first driving part 252.

[0035] The present invention provides a neutral wire protection cavity 230 and a live wire protection cavity 260, and provides a neutral wire protection door 250 in the neutral wire protection cavity 230 and a live wire protection door 280 in the live wire protection cavity 260, so as to prevent the live terminals in the socket from being exposed in the jack, thereby preventing electric shock accidents caused by accidental touch. A first drive part 252 and a second drive part 281 with staggered intervals are provided on the neutral wire protection door 250 and the live wire protection door 280, and a linkage mechanism is provided to make the neutral wire protection door 250 and the live wire protection door 280 slide synchronously, so that when the plug pin is inserted into the jack, the neutral wire pin first contacts and squeezes the first drive part 252, thereby pushing the neutral wire protection door 250 to slide; the neutral wire protection door 250 drives the live wire protection door 280 through the linkage mechanism. The live wire protection door 280 slides synchronously; at this time, as the insertion depth of the pin increases, when the driving stroke of the first driving part 252 ends or is about to end, the live wire pin of the plug abuts and squeezes the second driving part 281, pushing the live wire protection door 280 to slide; after the driving stroke of the first driving part 252 ends, the live wire protection door 280 drives the neutral wire protection door 250 to slide under the action of the linkage mechanism; at the end of the driving stroke of the second driving part 281, the channel between the first neutral wire jack 101 and the second neutral wire jack 202 and the channel between the first live wire jack 102 and the second live wire jack 203 are completely opened, and the two pins of the plug are able to pass through the protection door assembly, enter the inside of the socket, and turn on the power.

[0036] The first drive part 252 and the second drive part 281 arranged in the front and back can make it impossible to open the protective door assembly when any one of the sockets is plugged in alone. Even when a non-standard plug is inserted into the two sockets, it is impossible to realize the two-stage drive protective door opening process of "the neutral wire pin pushes the first drive part 252 (the first stroke starts) → the neutral wire protective door 250 drives the live wire protective door 280 to slide → the second drive part 281 moves to the live wire pin (the first stroke ends) → the live wire pin pushes the second drive part 281 (the second stroke starts) → the live wire protective door 280 drives the neutral wire sliding door to slide → the protective door assembly is fully opened (the second stroke ends) → the plug pin is inserted into the socket → the power is turned on". The above-mentioned protective door can only be opened when a standard plug or a pin of the same size as the standard plug is used, thereby effectively preventing electric shock accidents caused by accidental insertion of conductive objects into the socket.

[0037] The first driving part 252 and the second driving part 281 are driven by inclined surfaces, wherein the first driving part 252 adopts a first inclined surface extending obliquely downward, and the second driving part 281 adopts a second inclined surface extending obliquely downward. In order to prevent the neutral wire pin from being difficult to push when it abuts against the first driving part 252, the first inclined surface of the present invention is set as an arc surface, and the second inclined surface is set as an arc surface or a plane.

[0038] To enhance the socket's waterproofness and prevent conductive liquids from entering the socket or the protective cavity through the jack, potentially causing a short circuit, the present invention provides a partition 210 between the live wire protective cavity 260 and the neutral wire protective cavity 230, isolating the neutral wire protective cavity 230 from the live wire protective cavity 260. The linkage mechanism utilizes magnetic attraction and includes a first magnetic member 240 and a second magnetic member 270. The first magnetic member 240 is secured to the neutral wire protective door 250, and the second magnetic member 270 is secured to the live wire protective door 280. The partition 210 separates the neutral wire protective cavity 230 from the live wire protective cavity 260, allowing the first and second magnetic members 240, 270 to attract each other across the partition 210, achieving linkage between the neutral wire protective door 250 and the live wire protective door 280. The partition 210 isolates conductive liquid entering the neutral protection chamber 230 from the live protection chamber 260, thereby preventing the live and neutral pins from conducting electricity through the conductive liquid. The partition 210 is integrally formed with the bottom housing 200, which comprises a bottom plate 201 and an annular side plate 220 surrounding the bottom plate 201. The ends of the partition 210 abut against the annular side plate 220, completely isolating the neutral protection chamber 230 from the live protection chamber 260. Liquid accidentally entering one protection chamber will not flow into or seep into the other.

[0039] A groove 251 is formed on the side of the neutral line protection door 250 near the partition 210 and the side of the live line protection door 280 near the partition 210. The first magnetic member 240 and the second magnetic member 270 are both fixed in the groove 251. In other embodiments, the magnetic members can also be integrally formed with the protection door, with the first magnetic member 240 being a magnet and the neutral line protection door 250 being a plastic member. The first magnetic member 240 is integrally formed with the neutral line protection door 250 by injection molding.

[0040] In order to reset the protective door when the plug pin is pulled out, a spring is provided in the neutral line protective cavity 230 of the present invention, one end of the spring abuts against the side plate 220 , and the other end abuts against the neutral line protective door 250 .

[0041] The present invention also proposes another embodiment, please refer to Figure 14-19 .

[0042] In this embodiment, the partition 210 is L-shaped. The neutral line protection door 250 is located outside the partition 210, and the neutral line protection cavity 230 is L-shaped. The live line protection door 280 is located inside the partition 210, and the live line protection cavity 260 is rectangular. One end of the neutral line protection door 250 has a connecting rod 254, which houses a first magnetic element 240. The live line protection door 280 has a second magnetic element 270 located at the end that abuts the partition 210. The neutral line protection door 250 and the live line protection door 280 are linked by the magnetic attraction between the first magnetic element 240 and the second magnetic element 270. This solution uses pins to push the first and second drive parts 252 and 281 laterally, resulting in a smaller driving stroke. Therefore, the inclined surfaces of the first and second drive parts 252 and 281 can be more inclined, making them more conducive to being pushed by the pins.

[0043] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A protective door assembly for a safety socket, characterized in that: It includes a two-hole protective door mechanism, which includes a panel, a bottom shell, a neutral line protective door and a live line protective door; The panel is provided with a first neutral wire jack and a first live wire jack, and the bottom shell is provided with a second neutral wire jack opposite to the first neutral wire jack and a second live wire jack opposite to the first live wire jack; The panel and the bottom shell are enclosed to form a live wire protection cavity and a neutral wire protection cavity, the neutral wire protection door is arranged in the neutral wire protection cavity, and the live wire protection door is arranged in the live wire protection cavity; The two-hole protection door mechanism also includes a linkage mechanism to enable the neutral line protection door and the live line protection door to slide synchronously; The neutral wire protection door has a first driving portion and a neutral wire clearance gap for the neutral wire pin to pass through, and the live wire protection door has a second driving portion and a live wire clearance gap for the live wire pin to pass through; The horizontal distance between the upper edge of the second driving part and the live line clearance gap is smaller than the horizontal distance between the upper edge of the first driving part and the neutral line clearance gap, and is not smaller than the horizontal distance between the lower edge of the first driving part and the neutral line clearance gap; The height of the second driving portion is lower than that of the first driving portion.

2. The protective door assembly of the safety socket according to claim 1, characterized in that: The first driving portion has a first inclined surface, and the second driving portion has a second inclined surface.

3. The protective door assembly of the safety socket according to claim 2, characterized in that: The first inclined surface is a curved surface, and the second inclined surface is a flat surface.

4. The protective door assembly of the safety socket according to any one of claims 1 to 3, characterized in that: A partition is provided between the live wire protection cavity and the neutral wire protection cavity; the linkage mechanism includes a first magnetic component and a second magnetic component, the first magnetic component is fixed to the neutral wire protection door, and the second magnetic component is fixed to the live wire protection door.

5. The protective door assembly of the safety socket according to claim 4, characterized in that: The partition plate and the bottom shell are integrally formed.

6. The protective door assembly of the safety socket according to claim 4, characterized in that: The first magnetic attraction component is integrally formed with the neutral line protection door.

7. The protective door assembly of the safety socket according to claim 4, characterized in that: A groove is provided on one side of the neutral line protection door close to the partition, and the first magnetic element is fixed in the groove.

8. The protective door assembly of the safety socket according to claim 1, wherein: A spring is provided in the neutral line protection cavity, one end of the spring abuts against the side plate of the neutral line protection cavity, and the other end abuts against the neutral line protection door.

9. The protective door assembly of the safety socket according to claim 4, characterized in that: Also includes a three-hole protective door mechanism.

10. A safety socket, characterized in that: A protective door assembly comprising the safety socket according to any one of claims 1 to 9.

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