CN212462121U - Anti-single-plug socket - Google Patents

Abstract

The utility model provides a single-plug-proof socket, which comprises a protective door and a plug pin seat, wherein the protective door is arranged on the plug pin seat, and the plug pin seat is connected in a socket shell; the top of the protective door is provided with a first inclined plane, a second inclined plane and a third inclined plane, the first inclined plane corresponds to the second-level oblate jack, the second inclined plane corresponds to the grounding jack of the third-level jack, and the third inclined plane corresponds to the L-pole jack and the N-pole jack of the third-level jack respectively; one side of the protective door is provided with a clamping block; the metal probe seat corresponding to the clamping block is arranged in the bolt seat, a metal probe is arranged in the metal probe seat, and a first spring is sleeved on the metal probe. The utility model discloses a prevent singly inserting socket through ingenious design, shutter and metal probe combined use for the product has had double-deck protection, thereby the circular telegram has stably protected the safety of user of service and household electrical appliances product effectively.

Description

Anti-single-plug socket

Technical Field

The utility model relates to a supply socket technical field especially relates to a socket is prevented singly inserting.

Background

The protective door for preventing electric shock is arranged in the socket with the protective door, and when the socket is not inserted, the protective door made of insulating materials can shield the electrode of the socket, so that the electric shock caused by mistaken insertion can be prevented. When the socket is inserted, the protective door can be automatically opened so as to facilitate the insertion of the plug. The protection door with good general technology and meeting the national standard needs to adopt a design of preventing monopole insertion.

The three-pole plug generally has two designs for preventing the insertion of a single pole, firstly, the grounding electrode has no protective door, and the L pole and the N pole are inserted simultaneously to jack the protective door, but the insertion of the three-pole plug with the missing grounding electrode cannot be limited, and the safe grounding of an electric appliance cannot be realized, so that potential safety hazards can be brought; and secondly, three poles are provided with protective doors, and when the protective doors are jacked open by the grounding pins, the protective doors of the L pole and the N pole can be opened. And the safety door can be opened by inserting a screwdriver or a key into the grounding electrode, so that the L-pole plug bush and the N-pole plug bush are exposed, and potential safety hazards exist.

From the existing market, most of household socket electric shock protection devices are single, simple and crude, cannot play multiple electric shock protection functions, and can generate serious potential safety hazards once the household socket fails.

SUMMERY OF THE UTILITY MODEL

In view of the above shortcomings in the prior art, an object of the present invention is to provide a single-plug-proof socket for solving the problem of potential safety hazard existing in the single-plug-proof socket in the prior art.

In order to solve the technical problem, the anti-single-plug socket comprises a socket shell, a protective door and a plug pin seat, wherein a second-level oblate jack and a third-level jack are arranged on the surface of the socket shell, a grounding jack of the third-level jack is positioned between the second-level oblate jacks, the protective door is arranged on the plug pin seat, and the plug pin seat is connected in the socket shell; the top of the protection door is provided with a first inclined plane, a second inclined plane and a third inclined plane, the first inclined plane corresponds to the second-level oblate jack, the second inclined plane corresponds to the grounding jack of the third-level jack, and the third inclined plane corresponds to the L-pole jack and the N-pole jack of the third-level jack respectively; one side of the protection door is provided with a clamping block; a second-level pin groove corresponding to the second-level oblate jack and a third-level pin groove corresponding to the third-level jack are formed in the pin seat, pins are arranged in the second-level pin groove and the third-level pin groove, and the bottom of each pin is connected with a PCB (printed circuit board); the metal probe seat is arranged in the bolt seat and corresponds to the clamping block, a metal probe is arranged in the metal probe seat, and a first spring is sleeved on the metal probe.

Furthermore, a plurality of first spring seats are arranged on the other side of the protective door, second spring seats with the same number as the first spring seats are arranged on the pin seat, and the second spring seats are respectively positioned on two sides of the middle position of the top of the pin seat; a first spring is connected between the first spring seat and the second spring seat.

Further, the number of the first spring seats is 2, and the first spring seats are respectively located on two sides of the third inclined surface.

Further, the metal probe seat is of a cylindrical structure, and the interior of the metal probe seat is hollow.

Furthermore, the inner diameter of one end of the metal probe seat is larger than that of the other end of the metal probe seat, and the first spring is arranged at the end with the smaller inner diameter of the metal probe seat.

Furthermore, a fourth inclined plane is arranged at the bottom of the clamping block.

Furthermore, the bottom of the protective door is provided with a protruding rib, and the bolt seat is provided with a protruding rib clamping groove matched with the protruding rib.

Further, the bolt seat is connected to the socket shell through bolts.

Furthermore, an indicator light is connected to the PCB.

Further, the width of the first inclined surface is smaller than the second inclined surface and the third inclined surface.

As mentioned above, the utility model discloses a prevent singly inserting socket through ingenious design, shutter and metal probe jointly use for the product has had double-deck protection, thereby the circular telegram has stably protected the safety of user of service and household electrical appliances product effectively.

Drawings

Fig. 1 is an exploded view of an anti-single-plug receptacle according to an embodiment of the present invention;

fig. 2 is a frame diagram illustrating an internal structure of a single-plug-proof socket according to an embodiment of the present invention;

fig. 3 is a side view of the internal structure of an anti-single-plug socket according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a protection door of an anti-single-plug socket according to an embodiment of the present invention;

fig. 5 is a schematic view of a plug seat structure of a single-plug proof socket according to an embodiment of the present invention.

Reference is made to the following in corresponding reference numbers in the drawings of the specification:

socket shell 1, second grade oblate jack 11, tertiary jack 12, shutter 2, first inclined plane 21, second inclined plane 22, third inclined plane 23, screens piece 24, fourth inclined plane 241, first spring holder 25, abrupt muscle 26, bolt seat 3, tertiary bolt groove 31, bolt 32, PCB board 33, pilot lamp 331, metal probe seat 34, metal probe 341, second spring holder 35, abrupt muscle draw-in groove 36, second grade bolt groove 37, first spring 4, second spring 5.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1 to 5. It should be understood that the structures, ratios, sizes, etc. shown in the drawings of the present application are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structures, change of the ratio relationship or adjustment of the sizes should still fall within the scope of the present invention without affecting the functions and the achievable purposes of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

As shown in fig. 1 to 5, the utility model provides a prevent single socket, including socket shell 1, socket shell 1 is equipped with second grade oblate jack 11 and tertiary jack 12 on the surface, and the ground connection jack of tertiary jack 12 is located between second grade oblate jack 11, including shutter 2 and bolt seat 3, on bolt seat 3 was arranged in to shutter 2, bolt seat 3 passed through bolted connection in socket shell 1.

The top of the protective door 2 is provided with a first inclined plane 21, a second inclined plane 22 and a third inclined plane 23, the first inclined plane 21 corresponds to the second-level oblate jack 11, the second inclined plane 22 corresponds to the grounding jack of the third-level jack 12, and the third inclined plane 23 corresponds to the L-pole jack and the N-pole jack of the third-level jack 12 respectively. One side of shutter 2 is equipped with screens piece 24, and the opposite side is equipped with a plurality of first spring seats 25, is equipped with the second spring seat 35 the same with first spring seat quantity on the bolt seat 3. A second spring 5 is connected between the first spring seat 25 and the second spring seat 35. The number of the first spring seats 25 is set to 2, the first spring seats 25 are respectively located on two sides of the third inclined surface 23, and the second spring seats 35 are respectively located on two sides of the top middle position of the plug seat 3.

Be equipped with the second grade cotter way 37 that corresponds with the second grade oblate jack and the tertiary cotter way 31 that corresponds with tertiary jack in the bolt seat 3, all install bolt 32 in second grade cotter way 37 and the tertiary cotter way 31, the bottom of bolt 32 is connected with PCB board 33, is connected with an pilot lamp 331 on the PCB board 33. The plug pin seat 3 is internally provided with a metal probe seat 34 corresponding to the clamping block, the metal probe seat 34 is of a cylindrical structure and is hollow inside, and the inner diameter of one end of the metal probe seat 34 is larger than that of the other end. The metal probe holder 34 has a metal probe 341 inside, and the metal probe 341 is sleeved with a first spring 4. One end of the first spring 4 is disposed at the end of the metal probe seat with the smaller inner diameter, the other end is disposed at the lower part of the ring on the metal probe 341, and the top of the metal probe 341 is just supported by the fourth inclined surface 241 on the positioning block 24.

The width of the first inclined surface 21 is smaller than that of the second inclined surface 22 and the third inclined surface 23, so that when the secondary socket is inserted into the secondary oblate jack 11, the degree of movement of the protective door 2 caused by touching the first inclined surface 21 is smaller, and the third inclined surface 23 and the second inclined surface 22 still block the third-level pin slot 31, so that single insertion is prevented more safely. Protruding rib 26 is arranged at the bottom of protective door 2, and protruding rib slot 36 matched with protruding rib is arranged on bolt seat 3, so that the protective door can move more accurately. The bottom of the position-locking block 24 is provided with a fourth inclined surface 241, when the protection door moves, the position-locking block 24 can press the metal probe 341 downwards along with the movement of the fourth inclined surface 241 on the position-locking block 24, and then the lower part of the metal probe 341 touches the PCB 33.

When the anti-single-plug socket is used, after the secondary plug is inserted, the anti-single-plug socket touches the first inclined surface 21 on the protective door 2, so that after the protective door 2 moves, the clamping block 24 presses the metal probe 341 downwards to touch the PCB 33, the indicator lamp 331 is lightened, and the whole anti-single-plug socket works in a power-on mode. Similarly, after the three-level plug is inserted, the whole single-plug-proof socket is electrified to work after the third-level plug touches the second inclined surface 22 and the third inclined surface 23 on the protective door 2.

To sum up, the utility model discloses a prevent singly inserting socket through ingenious design, shutter and metal probe jointly use for the product has had double-deck protection, thereby the circular telegram has stably protected the safety of user of service and household electrical appliances product effectively. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (10)

1. A single-plug-proof socket comprises a socket shell (1), wherein a second-level oblate jack (11) and a third-level jack (12) are arranged on the surface of the socket shell (1), and a grounding jack of the third-level jack (12) is positioned between the second-level oblate jacks (11), and is characterized by further comprising a protective door (2) and a plug pin seat (3), wherein the protective door (2) is arranged on the plug pin seat (3), and the plug pin seat (3) is connected in the socket shell (1); a first inclined plane (21), a second inclined plane (22) and a third inclined plane (23) are arranged at the top of the protective door (2), the first inclined plane (21) corresponds to the second-stage oblate jack (11), the second inclined plane (22) corresponds to the grounding jack of the third-stage jack (12), and the third inclined plane (23) corresponds to the L-pole jack and the N-pole jack of the third-stage jack (12) respectively; a clamping block (24) is arranged on one side of the protective door (2); a second-level pin groove (37) corresponding to the second-level oblate pin hole and a third-level pin groove (31) corresponding to the third-level pin hole are formed in the pin seat (3), pins (32) are installed in the second-level pin groove (37) and the third-level pin groove (31), and the bottom of each pin (32) is connected with a PCB (33); a metal probe seat (34) corresponding to the clamping block is arranged in the plug pin seat (3), a metal probe (341) is arranged in the metal probe seat (34), and a first spring (4) is sleeved on the metal probe (341).

2. The anti-single-plug socket is characterized in that a plurality of first spring seats (25) are arranged on the other side of the protective door (2), second spring seats (35) with the same number as the first spring seats are arranged on the plug seat (3), and the second spring seats (35) are respectively arranged on two sides of the middle position of the top of the plug seat (3); a second spring (5) is connected between the first spring seat (25) and the second spring seat (35).

3. The receptacle of claim 2, wherein the number of the first spring seats (25) is 2 and is located on both sides of the third inclined surface (23).

4. The anti-single insertion socket according to claim 1, wherein the metal probe holder (34) has a cylindrical structure and is hollow inside.

5. The anti-single insertion socket according to claim 4, wherein the inner diameter of one end of the metal probe holder (34) is larger than that of the other end, and the first spring (4) is disposed at the end of the metal probe holder having the smaller inner diameter.

6. The receptacle of claim 1, wherein the bottom of the retention block (24) is provided with a fourth inclined surface (241).

7. The anti-single-plug socket according to claim 1, wherein a protruding rib (26) is arranged at the bottom of the protective door (2), and a protruding rib clamping groove (36) matched with the protruding rib is arranged on the plug pin seat (3).

8. A tamper proof socket as claimed in claim 1, wherein the plug housing (3) is bolted into the socket housing (1).

9. The receptacle of claim 1 wherein an indicator light (331) is attached to the PCB (33).

10. A receptacle according to claim 1, characterised in that the first ramp (21) has a smaller width than the second (22) and third (23) ramps.

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