Anti-misplug safety door and extension line socket

Abstract

The utility model belongs to the technical field of sockets, and particularly relates to an anti-misplug safety door and an extension line socket. The safety door device is arranged in the safety cavity and comprises a first safety door and a second safety door, the first safety door and the second safety door are provided with a plurality of protrusions, the shell is provided with a plurality of limiting grooves, and the reset device is arranged in the safety cavity and can drive the first safety door and the second safety door to slide and then reset. By arranging the first safety door and the second safety door, dust can be prevented, electric shock accidents caused by the fact that conductive foreign matter of children is inserted into the jacks can be prevented, unilateral insertion can be prevented through mutual cooperation of the protrusions and the limiting grooves, meanwhile, the first safety door and the second safety door share one reset device, the size is smaller, and the safety performance is better. And the structure is simpler.

Description

Technical Field

[0001] The utility model belongs to the technical field of sockets, and in particular relates to a safety door to prevent mis-insertion and an extension cord socket. Background Art

[0002] The wall sockets or extension cord sockets commonly used in daily life are usually two-hole plus three-hole structures. It is not difficult to find that the open sockets can easily cause the conductive sheet in the socket to be corroded by the humidity of the air, and dust may accumulate in the socket, affecting the conductivity. This kind of socket has many potential dangers. The most disadvantageous thing is that under improper operation or due to children's curiosity, it is very likely to insert conductive foreign objects into the socket, causing electric shock accidents, thus endangering life, property and safety.

[0003] In view of the above situation, many extension cord type sockets are equipped with dustproof devices or anti-misinsertion safety devices. The internal safety door structures of the two-hole plus three-hole extension cord type sockets in the prior art are relatively complicated. At the same time, some cannot prevent one-sided insertion and may still cause children to touch them accidentally (such as the invention patent with publication number CN117543262A); some safety door structures are complicated, resulting in a larger size of the extension cord type socket. Utility Model Content

[0004] The purpose of the utility model is to provide a safety door to prevent mis-insertion and an extension cord socket, aiming to solve the technical problems in the above-mentioned prior art that the internal safety door structure of the extension cord type is complicated, resulting in a large extension cord socket and the inability to prevent one-sided insertion.

[0005] To achieve the above-mentioned purpose, the embodiment of the utility model provides an anti-misinsertion safety door and an extension cord socket, comprising a housing; a two-hole jack and a three-hole jack are provided on the surface of the housing;

[0006] A safety door device, the safety door device comprises a first safety door and a second safety door, the first safety door and the second safety door are provided with a plurality of protrusions, the housing is provided with a plurality of limiting grooves, the first safety door and the second safety door are used to block the socket hole to prevent mis-insertion, and when the plug is inserted, the first safety door and the second safety door slide relative to each other to expose the socket hole;

[0007] A reset device is arranged in the safety cavity, and the reset device is located between the first safety door and the second safety door, and can drive the first safety door and the second safety door to slide and reset.

[0008] Optionally, the protrusion includes a plurality of first protrusions and a plurality of second protrusions; the plurality of first protrusions are arranged in the middle of the first safety door and the second safety door, and the plurality of second protrusions are arranged at both ends of the first safety door and the second safety door; the plurality of limiting grooves are arranged corresponding to the plurality of second protrusions, and each second protrusion can be inserted into the limiting groove accordingly.

[0009] Optionally, two first guide surfaces are provided on the first safety door, and the two first guide surfaces are inclined in the same direction. The two first guide surfaces block the two-hole jacks. When the plug is inserted, the plug and the first guide surfaces slide relative to each other. The first safety door moves to the right to expose the two-hole jacks, and the plug is inserted into the insertion position formed by one end of the conductive sheet.

[0010] Optionally, two second guide surfaces are provided on the second safety door, and the inclination directions of the two second guide surfaces are perpendicular to each other. The two second guide surfaces block the three-hole jack. When the plug is inserted, the plug and the second guide surfaces slide relative to each other. The second safety door moves to the left to expose the three-hole jack, and the plug is inserted into the insertion position formed by one end of the conductive sheet.

[0011] Optionally, auxiliary support parts are provided beside the first guide surface and the second guide surface.

[0012] Optionally, the reset device includes a reset spring and two relatively arranged locking components; the reset spring is arranged between the two locking components, the first safety door is provided with a first reset connection part, the first reset connection part is arranged between the two locking components and passes through one end of the reset spring; the second safety door is provided with a second reset connection part, the second reset connection part is arranged between the two locking components and passes through the other end of the reset spring.

[0013] Optionally, each of the locking components includes a first locking plate and a second locking plate which are vertically arranged; the first locking plate with a large contact surface is arranged close to the reset spring.

[0014] Optionally, an extension cord socket comprises a socket base and a safety door; the socket base is provided with conductive sheets corresponding to the two-hole jack and the three-hole jack.

[0015] Optionally, one end of each of the conductive sheets forms an insertion position for inserting the plug, and the other end is provided with a U-shaped pin, and the U-shaped pin is used for riveting the power supply.

[0016] Optionally, a plurality of the U-shaped pins extend out of the shell and are arranged on the side of the back of the shell.

[0017] Compared with the prior art, the above one or more technical solutions in the anti-misinsertion safety door and the extension cord socket provided by the embodiment of the utility model have at least one of the following technical effects:

[0018] By setting the first safety door and the second safety door, dust can be prevented and children can be prevented from inserting conductive foreign objects into the socket to prevent electric shock accidents. The cooperation between the protrusion and the limiting groove can prevent one-sided insertion, and the safety factor is higher. At the same time, the first safety door and the second safety door share a reset device, which is smaller in size and simpler in structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the structure of the anti-misinsertion safety door and the extension cord socket of the utility model.

[0021] Figure 2 It is a schematic diagram of the structure of the anti-misinsertion safety door and the extension cord socket of the utility model.

[0022] Figure 3 This is an exploded view of the anti-misinsertion safety door and the extension cord socket of the utility model.

[0023] Figure 4 This is an exploded view of the anti-misinsertion safety door and the extension cord socket of the utility model from another angle.

[0024] Among them, the reference numerals in the figure are:

[0025] 100. Shell;

[0026] 200, upper cover; 210, two-hole socket; 220, three-hole socket; 230, safety cavity;

[0027] 300, safety door device; 310, first safety door; 311, first guide surface; 312, first reset connection portion; 320, second safety door; 321, second guide surface; 322, second reset connection portion; 330, limiting groove; 340, first protrusion; 350, second protrusion; 360, auxiliary support portion;

[0028] 400, reset device; 410, reset spring; 420, latch assembly; 421, first latch plate; 422, second latch plate;

[0029] 500, socket base; 510, two-hole socket; 520, three-hole socket; 530, conductive sheet; 540, insertion position; 550, U-shaped pin. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0031] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0033] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0034] In one embodiment of the present invention, according to Figure 1-4As shown, a safety door and an extension cord socket for preventing misinsertion include a housing 100; an upper cover 200 is provided on the housing 100, a two-hole socket 210 and a three-hole socket 220 are provided on the upper cover 200, a safety cavity 230 is formed between the upper cover 200 and the housing 100, and a two-hole socket 510 and a three-hole socket 520 corresponding to the upper cover 200 are provided on the surface of the housing 100; a safety door device 300 is arranged in the safety cavity 230, and the safety door device 300 includes a first safety door 310 and a second safety door 320, a plurality of protrusions are provided on the first safety door 310 and the second safety door 320, and a plurality of limit The first safety door 310 and the second safety door 320 are used to block the socket hole to prevent mis-insertion. After the plug is inserted, the first safety door 310 and the second safety door 320 slide relative to each other to expose the socket hole; the reset device 400 is arranged in the safety cavity 230. The reset device 400 is located between the first safety door 310 and the second safety door 320, and can drive the first safety door 310 and the second safety door 320 to slide and reset; the socket base 500 is arranged inside the shell 100. The socket base 500 is provided with a conductive sheet 530 corresponding to the two-hole socket 510 and the three-hole socket 520.

[0035] Specifically, when the plug is inserted, the first safety door 310 and the second safety door 320 slide relative to each other to expose the socket hole, and the plug is inserted into the socket hole and contacts the conductive sheet 530. After the plug is pulled out, the first safety door 310 and the second safety door 320 are reset and re-blocked the socket hole under the drive of the reset device 400.

[0036] Furthermore, the protrusion cooperates with the limiting groove 330 to prevent unilateral insertion. After unilateral insertion, the second protrusion 350 can be inserted into the limiting groove 330 accordingly, the first safety door 310 and the second safety door 320 will not move, the socket jack will not be exposed, and there will be no risk of electric shock.

[0037] Furthermore, by providing the first safety door 310 and the second safety door 320, dust prevention can be performed and children can be prevented from inserting conductive foreign objects into the socket to prevent electric shock accidents. The cooperation between the protrusion and the limiting groove 330 can prevent one-sided insertion, and the safety factor is higher. At the same time, the first safety door 310 and the second safety door 320 share a reset device 400, which is smaller in size and simpler in structure.

[0038] In another embodiment of the present invention, according to Figure 1 and 4As shown, the protrusions include a plurality of first protrusions 340 and a plurality of second protrusions 350; the plurality of first protrusions 340 are arranged in the middle of the first safety door 310 and the second safety door 320, and the plurality of second protrusions 350 are arranged at both ends of the first safety door 310 and the second safety door 320, and the plurality of limiting grooves 330 are arranged corresponding to the plurality of second protrusions 350, and each second protrusion 350 can be inserted into the limiting groove 330 accordingly.

[0039] Specifically, the first protrusion 340 is located between the first safety door 310 and the second safety door 320, forming a seesaw structure. The second protrusion 350 is arranged corresponding to the limiting groove 330. When the user mistakenly inserts a conductive object into one side, the force will cause the first safety door 310 or the second safety door 320 to tilt toward the inserted side, and the second protrusion 350 at the location is inserted into the limiting groove 330, so that the first safety door 310 or the second safety door 320 cannot move, so the socket jack will not be exposed and there will be no risk of electric shock.

[0040] In another embodiment of the present invention, according to Figure 1 As shown, the first safety door 310 is provided with two first guide surfaces 311, the two first guide surfaces 311 are inclined in the same direction, the two first guide surfaces 311 block the two-hole jack 510, the plug is inserted, the plug and the first guide surface 311 slide relative to each other, the first safety door 310 moves to the right, the two-hole jack 510 is exposed, and the plug is inserted into the insertion position 540 formed at one end of the conductive sheet 530. The second safety door 320 is provided with two second guide surfaces 321, the two second guide surfaces 321 are inclined in a perpendicular direction to each other, the two second guide surfaces 321 block the three-hole jack 520, the plug is inserted, the plug and the second guide surface 321 slide relative to each other, the second safety door 320 moves to the left, the three-hole jack 520 is exposed, and the plug is inserted into the insertion position 540 formed at one end of the conductive sheet 530.

[0041] Specifically, as the plug is inserted, the first guide surface 311 and the second guide surface 321 can drive the first safety door 310 or the second safety door 320 to move under the action of force. It can be understood that the first guide surface 311 or the second guide surface 321 has different inclination directions and different movement directions.

[0042] In another embodiment of the present invention, according to Figure 1-3 As shown, auxiliary support portions 360 are disposed beside the first guide surface 311 and the second guide surface 321 .

[0043] Specifically, the auxiliary support portion 360 can prevent the plug from being inserted crookedly, and provide an auxiliary guiding function for the plug.

[0044] In another embodiment of the present invention, according to Figure 1-3 As shown, the reset device 400 includes a reset spring 410 and two oppositely arranged positioning components 420; the reset spring 410 is arranged between the two positioning components 420, the first safety door 310 is provided with a first reset connection portion 312, the first reset connection portion 312 is arranged between the two positioning components 420 and penetrates one end of the reset spring 410; the second safety door 320 is provided with a second reset connection portion 322, the second reset connection portion 322 is arranged between the two positioning components 420 and penetrates the other end of the reset spring 410. Each positioning component 420 includes a first positioning plate 421 and a second positioning plate 422 arranged vertically; the first positioning plate 421 with a large contact surface is arranged close to the reset spring 410.

[0045] Specifically, after the plug is pulled out, the first safety door 310 and the second safety door 320 are reset and re-block the socket hole under the drive of the reset spring 410.

[0046] Furthermore, the first safety door 310 and the second safety door 320 share a reset device 400, which has a smaller size and a simpler structure.

[0047] Furthermore, the first positioning plate 421 with a large contact surface is disposed close to the reset spring 410 , which can increase the contact area between the first reset connection portion 312 and the second reset connection portion 322 and the first positioning plate 421 , making it more stable and less likely to fall off.

[0048] In another embodiment of the present invention, according to Figure 3 and 4 As shown, one end of each conductive sheet 530 forms an insertion position 540 for inserting a plug, and the other end is provided with a U-shaped pin 550, which is used for riveting a power supply. Specifically, when the three exposed U-shaped pins 550 are riveted to the power supply, the riveting is completed in one time, which is simple and quick.

[0049] In another embodiment of the utility model, Figure 4 As shown, a plurality of U-shaped pins 550 extend out of the housing 100 and are arranged on the side of the back of the housing 100. Specifically, they are arranged on the side of the back of the housing 100, which is different from the prior art in which they are arranged in the middle of the back of the housing 100, so that they are easy to seal when doing secondary encapsulation.

[0050] In another embodiment of the utility model, Figure 3 and 4As shown, each conductive sheet 530 is integrally formed with the corresponding U-shaped pin 550. Specifically, the integral stamping does not require any welding, thus reducing the manufacturing cost and the use of materials while achieving good large-area contact performance and reliability, and at the same time reducing the problems of fracture, short circuit, looseness or non-vibration resistance caused by welding, and indirectly improving the production efficiency and the stability of the overall structure.

[0051] The rest of this embodiment is the same as the first embodiment. The features not explained in this embodiment are all based on the explanations in the first embodiment and will not be described in detail here.

[0052] The above content is a further detailed description of the utility model in combination with specific preferred implementation methods, and it cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, its architecture can be flexible and can derive a series of products. Just making a few simple deductions or substitutions should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A safety door to prevent misinsertion, characterized in that: It comprises a housing (100); a two-hole jack (510) and a three-hole jack (520) are provided on the surface of the housing (100); A safety door device (300), the safety door device (300) comprising a first safety door (310) and a second safety door (320), the first safety door (310) and the second safety door (320) being provided with a plurality of protrusions, the housing (100) being provided with a plurality of limiting grooves (330), the first safety door (310) and the second safety door (320) being used to block the socket hole to prevent mis-insertion, and when the plug is inserted, the first safety door (310) and the second safety door (320) slide relative to each other to expose the socket hole; A reset device (400) is disposed in a safety chamber (230). The reset device (400) is located between the first safety door (310) and the second safety door (320), and can drive the first safety door (310) and the second safety door (320) to slide and reset.

2. The anti-misinsertion safety door according to claim 1, characterized in that: The protrusions include a plurality of first protrusions (340) and a plurality of second protrusions (350); the plurality of first protrusions (340) are arranged at the middle of the first safety door (310) and the second safety door (320); the plurality of second protrusions (350) are arranged at both ends of the first safety door (310) and the second safety door (320); the plurality of limiting grooves (330) and the plurality of second protrusions (350) are arranged correspondingly; and each of the second protrusions (350) can be inserted into the limiting groove (330) accordingly.

3. The anti-misinsertion safety door according to claim 1, characterized in that: The first safety door (310) is provided with two first guide surfaces (311), the two first guide surfaces (311) are inclined in the same direction, the two first guide surfaces (311) block the two-hole jack (510), and when the plug is inserted, the plug and the first guide surfaces (311) slide relative to each other, and the first safety door (310) moves to the right, exposing the two-hole jack (510).

4. The anti-misinsertion safety door according to claim 3, characterized in that: The second safety door (320) is provided with two second guide surfaces (321), the inclination directions of the two second guide surfaces (321) are perpendicular to each other, the two second guide surfaces (321) block the three-hole jack (520), the plug is inserted, the plug and the second guide surfaces (321) slide relative to each other, and the second safety door (320) moves to the left, exposing the three-hole jack (520).

5. The anti-misinsertion safety door according to claim 4, characterized in that: Auxiliary support parts (360) are provided beside the first guide surface (311) and the second guide surface (321).

6. The anti-misinsertion safety door according to claim 1, characterized in that: The reset device (400) comprises a reset spring (410) and two relatively arranged locking components (420); the reset spring (410) is arranged between the two locking components (420); the first safety door (310) is provided with a first reset connection part (312), the first reset connection part (312) is arranged between the two locking components (420) and is passed through one end of the reset spring (410); the second safety door (320) is provided with a second reset connection part (322), the second reset connection part (322) is arranged between the two locking components (420) and is passed through the other end of the reset spring (410).

7. The anti-misinsertion safety door according to claim 6, characterized in that: Each of the locking components (420) comprises a first locking plate (421) and a second locking plate (422) which are arranged vertically; the first locking plate (421) having a large contact surface is arranged close to the return spring (410).

8. An extension cord socket, comprising a socket base (500) and a safety door; the socket base (500) is provided with a conductive sheet (530) corresponding to the two-hole jack (510) and the three-hole jack (520), characterized in that: The safety door is the safety door described in any one of claims 1-7.

9. The extension cord socket according to claim 8, characterized in that: An insertion position (540) for inserting the plug is formed at one end of each conductive sheet (530), and a U-shaped pin (550) is provided at the other end. The U-shaped pin (550) is used for riveting a power source.

10. The extension cord socket according to claim 9, characterized in that: A plurality of U-shaped pins (550) extend out of the housing (100) and are arranged on the side of the back of the housing (100).

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