CN220710697U - Safety socket - Google Patents

Abstract

The utility model discloses a safety socket, which comprises a face shell unit, wherein the face shell unit comprises a first shell, a jack is formed in the first shell, a protective door is arranged on the inner side of the first shell, and the protective door is arranged at the jack to block or open the jack; the protective door is provided with an upward abutting surface, and the abutting surface is used for covering the jack when the plug pins are not inserted into the jack, so that external water is prevented from entering the socket through the jack; the protection door is used for producing downward displacement and transverse displacement under the downward pressing action of the plug pins and the guiding action of the guiding structure when the plug pins are inserted into the jacks, so that the protection door avoids the plug pins to enable the plug pins to be inserted into the sockets. The technical scheme of the utility model can solve the problem that the socket is easy to enter water through the jack when the plug pin is not inserted into the socket.

Description

Safety socket

Technical Field

The utility model relates to the technical field of electric connectors, in particular to a safety socket.

Background

In the daily electricity use process, electric shock injury especially caused by water inlet of the socket occurs. The socket is spread over all corners of working and living spaces, and if water is sprayed on the socket carelessly, the electrified part of the socket can be soaked in water, so that electric shock accidents can easily occur when the socket is used. The electrified part of the socket meeting the current safety specification is hidden inside the socket shell when the socket is not plugged with a plug, and the outside cannot be directly contacted, but when water is splashed into the jack or the socket is accidentally immersed in water, the water can enter the socket through the jack, and the plug is plugged into the socket under the condition of water accumulation in the socket, so that electric shock accidents can be caused. Although the use of water accumulation inside the socket does not necessarily lead to electric shock, it is undeniable that the risk of electric shock of the socket with water accumulation inside is greater than that of the socket with dry inside, and thus, further improvement is required in the prior art.

Disclosure of Invention

The utility model mainly aims to provide a safety socket, which aims to solve the problem that water can enter a jack when the socket is not plugged with pins.

In order to achieve the above purpose, the present utility model provides a safety socket, which comprises a surface shell unit, wherein the surface shell unit comprises a first shell, the first shell is provided with a jack, the inner side of the first shell is provided with a protection door, and the protection door is arranged at the jack to block or open the jack; the protective door is provided with an upward abutting surface, and the abutting surface is used for covering the jack when the plug pins are not inserted into the jack, so that external water is prevented from entering the socket through the jack; the protective door is provided with a guide sliding block matched with the guide sliding groove or a guide sliding block or a guide groove matched with the guide sliding rail; the protective door is used for generating downward displacement and transverse displacement under the downward pressing action of the plug pins and the guiding action of the guiding structure when the plug pins are inserted into the jacks, so that the protective door avoids the plug pins to enable the plug pins to be inserted into the sockets.

Preferably, the guide sliding block is arranged in the middle of the protective door.

Preferably, the protective door is provided with a protective end, a first clamping piece is arranged below the first shell, and the first clamping piece is provided with a first clamping surface opposite to the end face of the protective end; the first clamping piece is used for propping against the protection end when a single pin is inserted into the jack far away from the protection end so as to clamp the protection door and prevent the single pin from being inserted.

Preferably, the face-piece unit further comprises a second housing, and the protective door is located between the first housing and the second housing; the second shell is provided with a second clamping piece, and the second clamping piece is provided with a second clamping surface opposite to the end face of the protection end; the second clamping piece is used for propping against the protection end when the single pin is inserted into the jack close to the protection end so as to clamp the protection door and prevent the single pin from being inserted.

Preferably, the protection door extends inwards and upwards from the end face of the protection end to form a first inclined plane, the second clamping piece outwards forms a second inclined plane outwards and downwards from the second clamping piece, and when the protection door is pushed downwards by the plug pin, the first inclined plane and the second inclined plane are mutually avoided.

Preferably, the protection door is provided with an avoidance groove, and the avoidance groove is close to the protection end; the first inclined surface is formed between the avoidance groove and the protection end; the avoidance groove is used for avoiding the second clamping piece when the plug pin is inserted into the socket.

Preferably, a guiding surface is arranged on the inner side of the lower end of the first clamping piece, so that the protection end of the protection door is avoided when the protection door is pushed down by the plug pin.

Preferably, the face-piece unit further comprises a second housing, and the protective door is located between the first housing and the second housing; the second housing is provided with a groove, and the protective door is at least partially embedded into the groove when the plug pins are inserted into the socket.

Preferably, the guide chute comprises a sinking part and a traversing part; the sinking part is close to the inner side surface of the face shell, and the transverse moving part is positioned below the sinking part and is communicated with the sinking part; the sinking part and the transverse moving part extend downwards, and the included angle between the sinking part and the pin inserting direction is smaller than the included angle between the transverse moving part and the pin inserting direction.

Preferably, an arc-shaped transition structure is arranged between the sinking part and the transverse moving part.

Preferably, the plug further comprises a return mechanism for acting on the protective door to return the protective door to a state covering the insertion hole when the plug pin is pulled out of the socket.

Preferably, the return mechanism is provided as a spring connected to the guard door.

Preferably, the restoring mechanism comprises a first magnetic piece and a second magnetic piece, wherein the first magnetic piece is fixed on the first shell, and the second magnetic piece is fixed on the protective door; the first magnetic piece and the second magnetic piece are attracted.

Preferably, the first magnetic member and the second magnetic member are positioned corresponding to each other when the protective door is in a state of blocking the jack.

Preferably, the upper surface of the first shell is provided with a first sinking groove for fixing the first magnetic piece downwards.

Preferably, a distance from the bottom of the first sink to the lower surface of the first housing is not less than 0.03 mm and not more than 2 mm.

Preferably, a through hole penetrating through the first shell is formed in the bottom of the first sink, and the aperture of the through hole is smaller than that of the first sink.

Preferably, a second sinking groove for fixing the second magnetic piece is formed in the lower surface of the protective door upwards.

Preferably, the distance from the bottom of the second sink groove to the upper surface of the protective door is not less than 0.03 mm and not more than 2 mm.

Preferably, the face-piece unit further comprises a second housing, and the second housing is located inside the first housing; the protective door is arranged between the first shell and the second shell; the restoring mechanism comprises a second magnetic piece and a third magnetic piece, the second magnetic piece is fixed on the protective door, and the third magnetic piece is fixed on the second shell; the third magnetic member is magnetically repelled from the second magnetic member.

Preferably, the second magnetic member is located between the first magnetic member and the receptacle when the plug pin is inserted into the receptacle.

Preferably, the shape of the upper surface of the guard door is adapted to the inner surface of the first housing.

Preferably, a third sinking groove is formed in the inner surface of the first shell, and the jack is formed in the bottom of the third sinking groove; the middle part of the protective door protrudes upwards to form a protruding part which is matched with the third sinking groove so as to be embedded into the third sinking groove when the plug pins are not inserted into the socket

Preferably, a flexible sealing layer is provided on the upper surface of the protective door to seal the receptacle when the protective door is in contact with the inner surface of the face-piece.

Preferably, the sealing layer is provided as a silicone layer or a rubber layer.

Preferably, the joint surfaces of the protective door and the inner surface of the face shell are all frosted surfaces.

Preferably, the upper surface of the protective door is provided with a lug which is matched with the shape of the jack, and when the plug pins are not inserted into the jack, the lug is embedded into the jack.

According to the technical scheme, the protection door and the guide structure which are propped against the inner side of the first shell are arranged, so that the jack is covered and plugged when the plug pin is not inserted into the socket, and the problem that water is easy to enter from the jack when the socket is idle is solved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an explosion structure of an embodiment of a safety socket according to the present utility model;

FIGS. 2-4 are schematic exploded views of a partial structure of an embodiment of the safety socket of the present utility model;

FIGS. 5 and 6 are schematic structural views of a first housing in an embodiment of the safety socket of the present utility model;

FIG. 7 is a top view of the structure of FIG. 6;

FIG. 8 is a schematic view of the cross-sectional structure A-A of FIG. 7;

FIGS. 9-11 are schematic views illustrating the structure of a guard door according to an embodiment of the safety socket of the present utility model;

fig. 12 and 13 are schematic structural views of a protective door in another embodiment of the safety socket of the present utility model;

FIG. 14 is a schematic view of a protective door according to another embodiment of the safety socket of the present utility model;

FIG. 15 is a schematic view of a portion of an exploded view of a safety socket according to another embodiment of the present utility model;

FIG. 16 is a schematic view of a portion of an exploded view of a safety receptacle according to another embodiment of the present utility model;

FIG. 17 is a schematic diagram of an exploded view of a portion of the structure of another embodiment of a safety socket of the present utility model;

FIG. 18 is a schematic view of a portion of a safety socket according to another embodiment of the present utility model;

FIGS. 19 and 20 are schematic cross-sectional views of FIG. 17 at various states of section A-A;

FIG. 21 is a schematic view of a portion of a safety socket according to another embodiment of the present utility model;

fig. 22 is a partial enlarged view of the region B shown in fig. 21.

Icon number description:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The problem of electricity safety of the socket is a long-term problem, and a plurality of electricity accidents still occur every year, wherein one of the problems is accidents caused by accidental water inlet of the socket, the socket is open when no plug is inserted into the socket, water is desirably inlet into the socket, water which is difficult to evaporate is still accumulated in the socket after the water on the surface of the socket shell is completely evaporated, and the water is difficult to perceive by a user, and at the moment, if the plug is inserted into the socket, the electric shock accidents possibly occur. In order to solve the problem, the basic idea is to plug the jack when the plug is not plugged into the socket, that is, the socket is idle, at present, the mode of plugging the jack is generally to set an elastic soft rubber piece at the jack, and after the plug pin is pulled out of the socket, the elastic soft rubber piece resets to close the jack. However, the elastic soft rubber piece cannot effectively seal the jack, is easy to wear and age, has poor reliability of plugging the jack, and loses the effect of plugging the jack after being used for a period of time.

Referring to fig. 1 to 22, in order to solve the problem that the jack 111 is easy to enter water when the socket is idle, the present utility model provides a safety socket, which comprises a panel unit 100, wherein the panel unit 100 comprises a first housing 110, the first housing 110 is provided with the jack 111, a protection door 130 is provided at the inner side of the first housing 110, and the protection door 130 is provided at the jack 111 to block or open the jack 111; the guard door 130 has an upward abutting surface 131, and the abutting surface 131 is used for covering the jack 111 when the plug pin is not inserted into the jack 111, so as to prevent external water from entering the socket through the jack 111; a guide structure 200 is arranged below the first housing 110, the guide structure 200 includes a guide chute 210 or a guide rail extending obliquely downward, and the protective door 130 is provided with a guide slide block 220 or a guide slot 230 adapted to the guide chute 210; the guard gate 130 is configured to displace downward and laterally under the pressing action of the plug pins and the guiding action of the guiding structure 200 when the plug pins are inserted into the insertion holes 111, so that the guard gate 130 is retracted from the plug pins to insert the plug pins into the sockets. The abutting surface 131 may be the entire upper surface of the protection door 130, or may be a part of the upper surface of the protection door 130, and only needs to abut against the inner surface of the first housing 110 and cover the jack 111 when the plug pin is not inserted into the jack 111.

The socket shell integrally comprises a shell and a bottom shell 400, wherein the shell and the bottom shell 400 form the shell of the socket, and the shell unit in the utility model is a part of the shell part in the socket shell, and can only comprise a first shell or a second shell, and the first shell and the second shell form the shell unit; for wall inserts, an outermost decorative shell 500 may also be included. Fig. 1 is a schematic view of a wall insert including a decorative shell 500. The technical solutions claimed in the present utility model are the same for the two basic sockets, i.e. the extension socket and the wall socket, which are only different in shape from each other, and are not described here.

In order to prevent a child's hand-held screwdriver or the like from being inserted into the socket through the conductive object of the insertion hole 111, another embodiment is proposed, in which the guide slider 220 is disposed in the middle of the protection door 130, so as to prevent the protection door 130 from being pushed open when a single pin is inserted into the insertion hole 111. When only one pin or a foreign matter close to the pin is inserted into the insertion hole 111, the guide sliding block 220 is arranged in the middle of the protective door 130, and after the protective door 130 is pressed down through the first shell 110, the protective door 130 deflects due to unbalanced stress and cannot slide downwards along the whole guide sliding chute 210, so that the protective door 130 cannot be opened under the condition, the foreign matter cannot enter the socket to be communicated with the electrified part, and the possibility of accidental electric shock of a child during playing under the unattended condition can be reduced.

To further prevent the electric shock caused by the insertion of the single pin into the socket, an embodiment of the present utility model provides a further solution for preventing the insertion of the single pin, in this embodiment, the protection door 130 has a protection end 135, a first locking member 114 is disposed under the first housing 110, and the first locking member 114 has a first locking surface 115 opposite to an end surface of the protection end 135; the first locking member 114 is configured to, when a single pin is inserted into the insertion hole 111 further away from the protection end 135, abut against the protection end 135 to lock the protection door 130, and block insertion of the single pin. When a single pin or a screwdriver, an iron sheet or other foreign matters similar to the pin are inserted into the insertion hole 111 far away from the protection end 135 of the protection door 130, the guide sliding block plays a role of a tilting wall fulcrum, so that the protection end 135 of the protection door 130 is propped upwards, and is blocked and cannot move further under the action of the first blocking piece 114, so that the foreign matters cannot enter the socket.

The face-piece unit 100 further includes a second housing 120, and the protective door 130 is located between the first housing 110 and the second housing 120; the second housing 120 is provided with a second locking member 121, and the second locking member 121 has a second locking surface 122 opposite to the end surface of the protecting end 135; the second locking member 121 is configured to, when a single pin is inserted into the insertion hole 111 closer to the protection end 135, abut against the protection end 135 to lock the protection door 130, and block insertion of the single pin. When a single pin or a screwdriver, an iron sheet or other foreign matter similar to the pin is inserted into the insertion hole 111 closer to the protection end 135 of the protection door 130, the guide slider plays a role of a tilting fulcrum, so that the protection end 135 of the protection door 130 is sunk downward and is blocked by the second blocking piece 121, and cannot move further, so that the foreign matter cannot enter the socket.

In order to avoid the first locking member 114 from obstructing the movement of the protective door 130 during the normal pin insertion, an embodiment of the present utility model is proposed, in this embodiment, a guiding surface 116 is provided on the inner side of the lower end of the first locking member 114, so that the protective end 135 of the protective door 130 is avoided when the protective door 130 is pushed by the plug pin.

In order to avoid the excessive thickness of the whole surface shell unit 100 and simultaneously achieve the purpose of effectively preventing monopole insertion, the protective door 130 extends inwards and upwards from the end surface of the protective end 135 to form a first inclined surface 137, the second locking piece 121 outwards forms an outwards and downwards second inclined surface 123 from the second locking surface 122, and the first inclined surface 137 and the second inclined surface 123 mutually avoid when the protective door 130 is pushed by the plug pin. The guard door 130 is provided with a avoidance groove 136, and the avoidance groove 136 is close to the guard end 135; the first inclined surface 137 is formed between the escape groove 136 and the protecting end 135; the avoidance groove 136 is used for avoiding the second locking member 121 when the plug pin is inserted into the socket. In this solution, the overall thickness of the face-piece unit 100 depends on the distance between the first housing 110 and the second housing 120, and too small a distance cannot enable the protection door 130, the first locking member 114, and the second locking member 121 to cooperate with each other to prevent monopole insertion.

Other embodiments of the utility model are also contemplated in which the second housing 120 is provided with a recess 124 to reduce the overall thickness of the face-piece unit 100, and the guard gate 130 is at least partially inserted into the recess 124 when the plug pin is inserted into the receptacle. The protective door 130 is partially or completely embedded in the second housing 120 in the case that the plug pins are inserted into the socket, so that the overall thickness of the panel unit 100 can be effectively reduced.

The guide sliding groove 210 and the guide sliding block 220 cooperate to guide the protective door 130 to slide downwards along the guide sliding groove 210 obliquely to open the jack 111 and avoid the pins, and the guide sliding rail cooperates with the guide sliding block 220 or the guide groove 230 to play the same role. When the guide sliding rail is adopted, the guide sliding block 220 is arranged on the protective door 130, the guide groove 230 is arranged on the guide sliding block 220, or the guide groove 230 is arranged on the protective door 130, and the guide groove 230 and the guide sliding rail are matched to guide the protective door 130 to slide obliquely downwards so as to open the jack 111 and avoid pins. The two different structural guides are essentially not different, and the utility model is specifically described with one of them.

The protection door 130 is disposed inside the first housing 110, and the abutting surface 131 of the protection door 130 abuts against the inner side surface of the first housing 110, so that the protection door 130 can cover the jack 111, thereby blocking the jack 111 and preventing water from entering the socket from the jack 111. In order to enable the protective door 130 to open the insertion hole 111 when the plug pin is inserted, a guiding chute 210 extending obliquely downward is provided below the first housing 110, and when the plug pin is inserted into the insertion hole 111, the pin presses the abutting surface 131 of the protective door 130, and the protective door 130 extends obliquely downward under the limiting action of the guiding chute 210, so as to avoid the plug pin and enable the pin to pass through, so that the plug pin can be inserted into the socket to realize electrical connection. It should be noted that, the downward inclined guiding chute 210 is disposed below the first housing 110, and only the positional relationship thereof is limited, i.e. the guiding chute 210 is located below the first housing 110, and is not limited to the guiding chute 210 being disposed on the first housing 110, in the specific embodiment, whether the guiding chute 210 is disposed on the structure of the first housing 110 or on a structural member not belonging to the first housing 110 disposed below the first housing 110 is the subject of the present disclosure.

In addition, it should be noted that, the guard door 130 may be configured in a plate shape, and a through hole is formed on the guard door for the pin to pass through, and after the pin presses the guard door 130 to move the guard door 130 obliquely downward for a certain distance, the through hole moves to a position that is communicated with the jack 111, so that the pin can pass through the through hole to enter the socket after passing through the jack 111. The guard gate 130 may not be provided with a through hole, but the guard gate 130 may be pushed down by the pins to move obliquely downward for a certain distance to avoid the pins integrally, so that the pins pass through the guard gate 130 and enter the socket.

According to the utility model, the inclined guide chute 210 is arranged to guide the protective door 130 to slide downwards in an inclined manner under the pushing action of the pins, so that under the condition that the abutting surface 131 of the protective door 130 abuts against the inner side surface of the first shell 110 and covers the plugging jack 111, the protective door can be pushed by the plug pins and slide along a preset direction, the effect that the plugging jack 111 is covered and plugged by the protective door 130 under the idle state of the socket to prevent water from entering the socket from the plugging jack 111 is realized, and the effect that the plugging jack 111 can be opened and the plugging pin is avoided under the pushing action of the pins under the condition that the plugging jack 111 is plugged is realized.

In order to enable the plug pin to be inserted into the insertion hole 111 to smoothly push the protection door 130, in an embodiment of the present utility model, the guiding chute 210 includes a sinking portion 211 and a lateral moving portion 212; the sinking part 211 is close to the inner side surface of the panel shell, and the traversing part 212 is positioned below the sinking part 211 and is communicated with the sinking part 211; the sinking portion 211 and the lateral moving portion 212 extend downward, and an angle between the sinking portion 211 and the pin inserting direction is smaller than an angle between the lateral moving portion 212 and the pin inserting direction. In this embodiment, the sinking portion 211 of the guiding chute 210 is closer to the direction in which the plug pin is inserted, and the component of the force in the direction along the sinking portion 211, which is obtained by the protective door 130 when the pin pushes the protective door 130, is greater, so that the protective door 130 slides along the direction of the sinking portion 211 more easily, and at the same time, in order to avoid too little pushing force, the plug pin is completely inserted into the socket, and in order to enable the protective door 130 to avoid opening the plug pin, the traversing portion 212 is disposed below the sinking portion 211, and when needs to be described, the traversing portion 212 is not perpendicular to the direction of the plug pin, but rather forms a larger included angle with the insertion direction of the plug pin relative to the sinking portion 211, so that the protective door 130 can move more laterally under the condition of moving a smaller distance downwards. In the preferred solution of this embodiment, the included angle between the sinking portion 211 and the direction in which the plug pins are inserted is not greater than 45 °, and the included angle between the traversing portion 212 and the direction in which the plug pins are inserted is not less than 30 ° and not greater than 75 °, but it is required that the included angle between the sinking portion 211 and the direction in which the plug pins are inserted is smaller than the included angle between the traversing portion 212 and the direction in which the plug pins are inserted. In order to prevent the guide slider 220 from being jammed between the sinking portion 211 and the traverse portion 212, an arc-shaped transition structure 213 is provided between the sinking portion 211 and the traverse portion 212 in the preferred embodiment.

When the plug pins are pulled out from the socket, the protective door 130 is reset to a state of covering the jack 111, and a return mechanism 300 is further provided, wherein the return mechanism 300 is used for acting on the protective door 130 to return the protective door 130 to a state of covering the jack 111 when the plug pins are pulled out from the socket.

In a specific embodiment, the return mechanism 300 may be configured as a spring, and the spring is connected to the guard door 130. In other embodiments, the return mechanism 300 may also be configured as a magnetic assembly that uses magnetic force to reset the guard door 130. Specifically, the restoring mechanism 300 includes a first magnetic member 310 and a second magnetic member 320, the first magnetic member 310 is fixed to the first housing 110, and the second magnetic member 320 is fixed to the protection door 130; the first magnetic element 310 and the second magnetic element 320 are attracted, and the positions of the first magnetic element 310 and the second magnetic element 320 correspond to each other when the protective door 130 is in a state of blocking the jack 111, that is, when the protective door 130 covers the blocking jack 111, the second magnetic element 320 is located below the first magnetic element 310, and the first magnetic element 310 and the second magnetic element 320 are opposite or nearly opposite, at the moment, the magnetic attraction between the first magnetic element 310 and the second magnetic element 320 in the socket is the largest.

In order to make the first magnetic element 310 and the second magnetic element 320 fixed in the socket stable and reliable, this embodiment proposes a preferred solution, the upper surface of the first housing 110 is provided with a first sink 112 for fixing the first magnetic element 310 downward, and the lower surface of the protective door 130 is provided with a second sink 132 for fixing the second magnetic element 320 upward. The first magnetic element 310 and the second magnetic element 320 are attracted to each other, and the first magnetic element 310 attracts the second magnetic element 320, so that the second magnetic element 320 can be more tightly attached to the second sink 132; similarly, the second magnetic element 320 attracts the first magnetic element 310, so that the first magnetic element 310 can be more closely fitted into the first sink 112. In addition, in this solution, the sinking groove is formed, so that the first magnetic element 310 and the second magnetic element 320 can be kept in the sinking groove without being separated from the sinking groove when being loosened unexpectedly.

In order to achieve the structural strength of the first housing 110 and the protective door 130, the bottom of the sink groove is prevented from being cracked after long-term use, the distance from the bottom of the first sink groove 112 to the lower surface of the first housing 110 is not less than 0.03 mm and not more than 2 mm, and the distance from the bottom of the second sink groove 132 to the upper surface of the protective door 130 is not less than 0.03 mm and not more than 2 mm. In order to reduce the influence of the bottom of the sink to the magnetic force, the bottom of the first sink 112 is provided with a through hole penetrating through the first housing 110, the aperture of the through hole is smaller than that of the first sink 112, and by providing the through hole, the attractive force between the magnetic parts is stronger, so that the protection door 130 can cover and seal the jack 111 stably under normal conditions.

In the scheme that the restoring mechanism 300 adopts magnetic elements to realize the reset of the driving protection door 130, the utility model also provides another implementation way, namely, the restoring mechanism is realized by utilizing the mutual repulsive action between different magnetic elements. Specifically, the face-piece unit 100 further includes a second housing 120, the second housing 120 being located inside the first housing 110; the protective door 130 is disposed between the first housing 110 and the second housing 120; the restoring mechanism 300 includes a second magnetic member 320 and a third magnetic member 330, the second magnetic member 320 is fixed to the protection door 130, and the third magnetic member 330 is fixed to the second housing 120; the third magnetic element 330 is magnetically repelled from the second magnetic element 320. The second magnetic member 320 is positioned between the first magnetic member 310 and the receptacle 111 when the plug pin is inserted into the receptacle. In this embodiment, the third magnetic member 330 is disposed under the protection door 130, and is located at a position close to the direction of the jack 111 under the second magnetic member 320 on the protection door 130 when the plug pin is inserted into the socket, so that the protection door 130 can move toward the jack 111 to be reset under the mutual repulsive action between the third magnetic member 330 and the second magnetic member 320 when the plug pin is pulled out of the socket.

In order to make the plugging effect of the protective door 130 better when the plug hole 111 is covered, the present utility model further provides an embodiment, in this embodiment, the shape of the upper surface of the protective door 130 is adapted to the inner surface of the first housing 110, so that the protective door 130 is closely attached when the protective door 130 is attached to the inner side surface of the face-piece unit 100. In this embodiment, a third sinking groove 113 is formed on the inner surface of the first housing 110, and the jack 111 is formed at the bottom of the third sinking groove 113; the middle part of the protective door 130 is protruded upward to form a protrusion 133, and the protrusion 133 is adapted to the third recess 113 to be inserted into the third recess 113 when the plug pin is not inserted into the socket. The middle part of the protective door 130 is protruded to be embedded in the third sink 113, so that the water inlet prevention effect can be further enhanced. In other embodiments, the upper surface of the guard door 130 and the inner surface of the first housing 110 may be configured to be flat, and the flat abutment may be tightly fitted.

In a further embodiment, the upper surface of the guard door 130 is provided with a flexible sealing layer to seal the insertion hole 111 when the guard door 130 is attached to the inner surface of the panel, and the flexible sealing layer is provided as a silicone layer or a rubber layer. In other embodiments, the contact surfaces of the protective door 130 and the inner surface of the panel shell may be all provided with frosting surfaces, and when the frosting surfaces abut, a good sealing effect may be formed. The upper surface of the protective door 130 is closely attached to the inner side surface of the panel unit 100, so that the gap between the contact surfaces of the protective door 130 covering the jack 111 when the plug pins are not inserted into the socket can be reduced, thereby better blocking water from entering the socket from the jack 111.

In other embodiments, the upper surface of the guard door 130 may further be provided with a protrusion 134 that is adapted to the shape of the receptacle 111, and the protrusion 134 is embedded in the receptacle 111 when the plug pin is not inserted into the receptacle 111. The bump 134 fills the jack 111, which increases the distance of the gap with water blocking effect when water permeates into the socket via the gap, and can better prevent water from entering, in addition, the bump 134 can also fill or partially fill the jack 111, so as to prevent water from accumulating in the hole of the jack 111, thereby preventing water from permeating into the socket.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (27)

1. A safety socket, comprising:

the face shell unit comprises a first shell, wherein the first shell is provided with a jack, the inner side of the first shell is provided with a protective door, and the protective door is arranged at the jack to block or open the jack; the protective door is provided with an upward abutting surface, and the abutting surface is used for covering the jack when the plug pins are not inserted into the jack, so that external water is prevented from entering the socket through the jack;

the protective door is provided with a guide sliding block matched with the guide sliding groove or a guide sliding block or a guide groove matched with the guide sliding rail; the protective door is used for generating downward displacement and transverse displacement under the downward pressing action of the plug pins and the guiding action of the guiding structure when the plug pins are inserted into the jacks, so that the protective door avoids the plug pins to enable the plug pins to be inserted into the sockets.

2. The safety socket of claim 1 wherein said guide slide is provided in the middle of said guard gate.

3. The safety socket of claim 2 wherein the guard door has a guard end, a first catch being provided below the first housing, the first catch having a first catch face opposite an end face of the guard end; the first clamping piece is used for propping against the protection end when a single pin is inserted into the jack far away from the protection end so as to clamp the protection door and prevent the single pin from being inserted.

4. The safety receptacle of claim 3, wherein said face housing unit further comprises a second housing, said protective door being located between said first housing and said second housing; the second shell is provided with a second clamping piece, and the second clamping piece is provided with a second clamping surface opposite to the end face of the protection end; the second clamping piece is used for propping against the protection end when the single pin is inserted into the jack close to the protection end so as to clamp the protection door and prevent the single pin from being inserted.

5. The safety socket of claim 4 wherein said guard door extends inwardly and upwardly from an end face of said guard end to have a first inclined surface, said second latch member has a second inclined surface outwardly and downwardly from said second latch surface, said guard door being pushed downwardly by said plug pin, said first inclined surface and said second inclined surface being mutually offset.

6. The safety socket of claim 5 wherein said guard door defines a relief slot, said relief slot being adjacent said guard end; the first inclined surface is formed between the avoidance groove and the protection end; the avoidance groove is used for avoiding the second clamping piece when the plug pin is inserted into the socket.

7. A safety socket according to claim 3, wherein the inner side of the lower end of the first locking member is provided with a guide surface to avoid the protective end of the protective door when the protective door is pushed down by the plug pin.

8. The safety receptacle of claim 2, wherein the face housing unit further comprises a second housing, the protective door being located between the first housing and the second housing; the second housing is provided with a groove, and the protective door is at least partially embedded into the groove when the plug pins are inserted into the socket.

9. The safety receptacle of claim 1, wherein the guide chute includes a countersink and a sideslip; the sinking part is close to the inner side surface of the face shell, and the transverse moving part is positioned below the sinking part and is communicated with the sinking part; the sinking part and the transverse moving part extend downwards, and the included angle between the sinking part and the pin inserting direction is smaller than the included angle between the transverse moving part and the pin inserting direction.

10. The safety receptacle of claim 9, wherein an arcuate transition is provided between the countersink and the traversing portion.

11. The safety receptacle of claim 1, further comprising a return mechanism for acting on the guard gate to return the guard gate to a state covering the receptacle when the plug pin is unplugged from the receptacle.

12. The safety receptacle of claim 11, wherein the return mechanism is provided as a spring coupled to the guard door.

13. The safety receptacle of claim 11, wherein the return mechanism comprises a first magnetic member and a second magnetic member, the first magnetic member being secured to the first housing and the second magnetic member being secured to the guard door; the first magnetic piece and the second magnetic piece are attracted.

14. The safety socket of claim 13 wherein the first magnetic member corresponds to the second magnetic member in position when the guard gate is in a state of blocking the receptacle.

15. The safety socket of claim 13 wherein said first housing upper surface is downwardly formed with a first countersink for securing said first magnetic member.

16. The safety receptacle of claim 15, wherein a distance from a bottom of the first countersink to a lower surface of the first housing is no less than 0.03 mm and no more than 2 mm.

17. The safety receptacle of claim 15, wherein a through hole is formed through the first housing at a bottom of the first sink, and wherein a pore diameter of the through hole is smaller than a pore diameter of the first sink.

18. The safety socket of claim 13 wherein a second countersink for securing said second magnetic member is provided upwardly on a lower surface of said guard door.

19. The safety receptacle of claim 18, wherein a distance from a bottom of the second sink to an upper surface of the guard door is no less than 0.03 mm and no more than 2 mm.

20. The safety receptacle of claim 11, wherein said face housing unit further comprises a second housing, said second housing being located inside said first housing; the protective door is arranged between the first shell and the second shell; the restoring mechanism comprises a second magnetic piece and a third magnetic piece, the second magnetic piece is fixed on the protective door, and the third magnetic piece is fixed on the second shell; the third magnetic member is magnetically repelled from the second magnetic member.

21. The safety receptacle of claim 20, wherein said second magnetic member is positioned between said third magnetic member and said receptacle when a plug pin is inserted into the receptacle.

22. The safety receptacle of claim 1, wherein the guard door upper surface is shaped to fit the first housing inner surface.

23. The safety socket of claim 22 wherein a third sink is provided on the inner surface of the first housing, and the jack is provided at the bottom of the third sink; the middle part of the protective door protrudes upwards to form a protruding part, and the protruding part is matched with the third sinking groove so as to be embedded into the third sinking groove when the plug pins are not inserted into the socket.

24. A safety receptacle according to claim 22 or claim 23, wherein the upper surface of the guard door is provided with a flexible sealing layer to seal the receptacle when the guard door is fitted to the inner surface of the face housing.

25. The safety receptacle of claim 24, wherein the sealing layer is provided as a silicone layer or a rubber layer.

26. A safety receptacle according to claim 22 or claim 23, wherein the abutment surfaces of the guard door and the inner surface of the face housing are each provided as frosted surfaces.

27. The safety socket of claim 1 wherein the upper surface of the guard door is provided with a projection adapted to the shape of the receptacle, the projection being embedded in the receptacle when the plug pin is not inserted into the receptacle.