Socket

Abstract

A socket comprises at least one protection door and at least one elastic piece, the at least one protection door is arranged in the socket in a sliding mode, the elastic piece drives the protection door to be located at a first position, the protection door is shielded between a corresponding plug bush and a plug hole, and the protection door overcomes the elastic force of the elastic piece to drive the protection door to be located at a second position after being subjected to external force. The protection door is staggered with the plug hole and comprises a first through hole, when the protection door is located at the first position, the first through hole is staggered with the plug hole, when the protection door is located at the second position, the first through hole corresponds to one plug pin hole, and a first extending part is arranged at the end, away from the first through hole, of the protection door. First limiting structures are arranged on the two opposite faces or one face, in the thickness direction of the protection door, of the first extending part, second limiting structures matched with the first limiting structures for limiting are arranged in the socket, and when the protection door is stressed to incline to enable the first limiting structures and the second limiting structures to be limited, the protection door is prevented from moving from the first position to the second position. And single-pole insertion can be prevented.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical appliances, specifically to a socket. Background Technology

[0002] To prevent children from inserting their fingers or conductive metal rods into sockets and causing danger, existing technology generally incorporates a safety shutter structure in the socket. This safety shutter structure blocks the socket's insertion hole, and the plug actuates the safety shutter structure, releasing the insertion hole. Socket designers typically prevent the safety shutter from opening by adding two small limiting ribs to the pressure plate, thus ensuring socket safety. However, using these two limiting ribs to prevent the safety shutter from opening is unstable; it is also easy for the safety shutter to open when only one pole is inserted. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a socket that prevents single-pole insertion.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This application provides a socket, which includes at least one set of plug holes and at least one set of socket sleeves, wherein the at least one set of socket sleeves corresponds one-to-one with the at least one set of plug holes, the plug holes include at least two pin holes, and the socket sleeves include at least two sets of clamping arms.

[0006] The socket further includes at least one protective door and at least one elastic element. The at least one protective door is slidably disposed within the socket. The elastic element drives the protective door to a first position, where the protective door blocks the corresponding socket and plug hole. When the protective door is subjected to external force, it overcomes the elastic force of the elastic element and is driven to a second position, where the protective door is misaligned with the plug hole.

[0007] The protective door includes a first through hole. When the protective door is in the first position, the first through hole is misaligned with the plug hole. When the protective door is in the second position, the first through hole corresponds to one of the plug holes. The protective door has a first extension at the end away from the first through hole. The first extension has a first limiting structure on two or one side opposite to each other along the thickness direction of the protective door. The socket has a second limiting structure that cooperates with the first limiting structure to limit movement. When the protective door is tilted under force, causing the first limiting structure and the second limiting structure to limit movement, the protective door is prevented from moving from the first position to the second position.

[0008] In one possible implementation, the first limiting structure is a groove structure and the second limiting structure is a boss structure; or, the first limiting structure is a boss structure and the second limiting structure is a groove structure.

[0009] In one possible implementation, the protective door includes two parallel, spaced-apart first extensions forming a first notch between the two first extensions. The first notch includes a first sidewall, and a second sidewall opposite to the first sidewall is provided inside the socket. When the protective door is in a first position, the second sidewall is located within the first notch, the first sidewall abuts against the second sidewall, and the first notch is misaligned with the plug hole. When the protective door is in a second position, the first sidewall and the second sidewall are spaced apart, and the first notch corresponds to one of the pin holes.

[0010] In one possible implementation, avoidance zones are provided on both sides of the second sidewall. When the protective door is in the first position, the two first extension portions are respectively located in the two avoidance zones, and the avoidance zones are provided with the second limiting structure.

[0011] In one possible implementation, the protective door is provided with sliding shafts on both sides, and the socket is provided with two slide rails that cooperate with the sliding shafts. The slide rails include a vertical guide section and an inclined guide section, and the guide section and the guide section are bent and connected with an obtuse angle between them.

[0012] When the protective door is in the first position, it is located within the guide section and away from the guide section; when the protective door is in the second position, it is located within the guide section and away from the guide section.

[0013] In one possible implementation, when the protective door moves vertically along the guide section, the first extension is located in the avoidance zone and also moves vertically along the avoidance zone; when the protective door moves tilted along the guide section, the first extension moves vertically along the avoidance zone and moves away from the avoidance zone; when the protective door is in the second position, the first extension is at least partially located within the avoidance zone.

[0014] In one possible implementation, the socket includes a protective door base with at least one set of opposing first and third sidewalls. The protective door is slidably mounted on the first and third sidewalls, and slide rails are provided on the first and third sidewalls. Slide shafts extend from both sides of the protective door and slide in cooperation with the slide rails. At least one second through hole is provided at the bottom of the protective door base.

[0015] In one possible implementation, the socket includes a protective door base with at least one protective door mounting groove. At least one protective door is slidably disposed within each of the at least one protective door mounting groove. Each protective door mounting groove includes a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall. The first and third sidewalls are opposite to each other, as are the second and fourth sidewalls. The protective door is slidably mounted on the first and third sidewalls. Slide rails are provided on the first and third sidewalls. Slide shafts extend from both sides of the protective door, and these slide shafts slidably engage with the slide rails. At least one second through hole is provided at the bottom of the protective door base.

[0016] In one possible implementation, the socket includes a socket base and a socket cover, the plug hole is disposed on the socket cover, the socket sleeve is disposed within the socket base, and the protective door base is disposed between the socket sleeve and the socket cover.

[0017] The protective door base is disposed inside the socket base, and the socket cover covers the protective door base and / or the socket base; or, the protective door base covers the socket base, and the socket cover covers the protective door base.

[0018] The protective door base is provided with the second limiting structure, and / or the socket cover is provided with the second limiting structure.

[0019] In one possible implementation, the elastic element passes through the second through hole and is connected at both ends to the protective door and the socket base, respectively; or, the two ends of the elastic element are connected to the protective door and the protective door base, respectively, and when the elastic element drives the protective door to the first position, the elastic element drives the protective door to be tightly pressed against the socket cover.

[0020] The socket of this application includes a protective door structure, which comprises at least one protective door and at least one elastic element. The at least one protective door is slidably disposed within the socket. The elastic element drives the protective door to block the corresponding socket sleeve and plug hole, thereby blocking the socket sleeve when the socket is not in use. The protective door includes a first through hole providing sliding space for the protective door. A first extension or two first extensions are provided at intervals at one end away from the first through hole. The two first extensions extend along the length direction of the protective door. A first limiting structure is provided on one or both sides of the first extensions facing away from each other. A second limiting structure is provided inside the socket to limit the insertion of a single pole. When a single pole is inserted into the socket, one end of the protective door swings, and the first and second limiting structures cooperate to limit the insertion, preventing the protective door from sliding from the first position to the second position, thus preventing the protective door from misaligning with the plug hole. The protective door structure can prevent single pole insertion, prevent small objects from contacting the socket sleeve, and improve the safety of the socket. Attached Figure Description

[0021] Figure 1 This is an exploded view of the socket of this utility model;

[0022] Figure 2 and Figure 3 This is a structural diagram of the front and back of the protective door corresponding to the two-prong plug of this utility model;

[0023] Figure 4 and Figure 5 This is a structural diagram of the front and back of the protective door corresponding to the three-prong plug of this utility model;

[0024] Figure 6 , Figure 8 and Figure 10 This is a sectional view of the first section of the socket of this utility model;

[0025] Figure 7 and Figure 9 This is a sectional view of the second section of the socket of this utility model;

[0026] Figure 11 This is a cross-sectional view of the socket cover of this utility model;

[0027] Figure 12 This is a schematic diagram of the structure of the back of the socket cover of this utility model;

[0028] Figure 13 This is a schematic diagram of the structure of the protective door base of this utility model;

[0029] Figure 14 This is a cross-sectional view of the socket when the protective door of this utility model is in the second position;

[0030] The reference numerals in the attached drawings include: protective door 1; elastic element 2; first through hole 11; first extension 12; groove structure 121; boss structure 122; first side 315; second side wall 312; clearance area 123; sliding shaft 33; sliding rail 32; guide section 321; guide section 322; first direction D1; second direction D2; third direction D3; second retaining wall 421; protective door base 35; protective door mounting groove 31; first side wall 311; third side wall 313; fourth side wall 314; second through hole 34; socket base 41; socket cover 42; first fixing part 13; second fixing part 14. Detailed Implementation

[0031] The specific embodiments of this utility model are further described below with reference to the accompanying drawings. The scope of protection of this utility model is not limited to the description of the following embodiments.

[0032] like Figures 1-13 As shown, this application provides a socket, which includes at least one set of plug holes and at least one set of socket sleeves. Each set of socket sleeves corresponds one-to-one with each set of plug holes. Each plug hole includes at least two pin holes, and each socket sleeve includes at least two sets of clamping arms. One end of each socket sleeve is connected to a power supply line, and the other end is used to connect a plug. The clamping arms of the socket sleeve have a clamping effect, cooperating with the pins on the plug to achieve a clamping connection, thus fixing and limiting the plug's position. It should be noted that the socket of this application can be used in AC circuits or DC circuits. In the embodiments provided in this application, the socket includes two-prong and three-prong sockets. Of course, the socket of this utility model can also include four-prong sockets and combinations of various socket types.

[0033] The socket of this application also includes a protective door structure, which covers the socket and the corresponding plug hole. The protective door structure is used to cover the socket inside the socket when the socket is not in use, which can prevent single-pole insertion, prevent small objects from contacting the socket, and improve the safety of the socket.

[0034] like Figures 1-5 As shown, the protective door structure includes at least one protective door 1 and at least one elastic element 2. The at least one protective door 1 is slidably disposed in the socket. The elastic element 2 drives the protective door 1 to block between the corresponding socket and the plug hole. The protective door 1 slides back and forth between a first position and a second position. The elastic element 2 drives the protective door 1 to slide from the second position to the first position. The protective door 1 blocks between the corresponding socket and the plug hole. When the protective door 1 is subjected to external force, it overcomes the elastic force of the elastic element 2 and drives the protective door 1 to the second position. The protective door 1 is misaligned with the plug hole, so that the plug can be inserted into the plug hole.

[0035] The protective door 1 includes a first through hole 11, and a first extension 12 or two first extensions 12 are provided at an interval at one end away from the first through hole 11. The first extensions 12 extend along the length of the protective door 1. When the protective door 1 is inserted into a single pole, one end of the protective door 1 swings, and the first extension 12 of the protective door 1 contacts the limiting structure in the socket, so that the protective door 1 cannot be misaligned with the plug hole. The elastic element 2 may be, but is not limited to, a compression spring, a spring or a tension spring.

[0036] The first through hole 11 provides sliding space for the protective door 1. When the protective door 1 is in the first position, the first through hole 11 is hidden inside the socket and misaligned with the plug hole. When the protective door 1 is in the second position, the first through hole 11 corresponds to a pin hole. One pin can be connected to the socket sleeve through the first through hole 11. Another pin can be connected to the socket sleeve through one side of a first extension 12, or through the two first extensions 12.

[0037] Preferred, such as Figures 2-5 and Figure 13 As shown, the first extension 12 is provided with a first limiting structure on two or one side opposite to each other along the thickness direction of the protective door 1. The socket is provided with a second limiting structure that cooperates with the first limiting structure to limit the movement. When the protective door 1 is tilted by force, causing the first limiting structure and the second limiting structure to limit the movement, the protective door 1 is prevented from moving from the first position to the second position.

[0038] In this embodiment, the protective door 1 includes a first through hole 11. A first extension 12 or two first extensions 12 are provided at an interval at one end of the protective door 1 away from the first through hole 11. A first limiting structure is provided on the opposite side of the first extension 12. A second limiting structure is provided inside the socket to cooperate with the first limiting structure for limiting. When one end of the protective door 1 is tilted by force and acts as a rocker, the first limiting structure and the second limiting structure limit the movement of the protective door 1 from the first position to the second position, thereby preventing the protective door 1 from being misaligned with the plug hole and preventing single-pole insertion.

[0039] Furthermore, such as Figures 2-5 and Figure 13 As shown, the first limiting structure can be a groove structure 121, and the second limiting structure can be a boss structure 122; or, the first limiting structure can be a boss structure 122, and the second limiting structure can be a groove structure 121.

[0040] Furthermore, such as Figure 2 and Figure 3As shown, the protective door 1 includes two parallel and spaced first extensions 12, with a first notch formed between the two first extensions 12. The first notch includes a first side 315, and a second side wall 312 opposite to the first side 315 is provided inside the socket. When the protective door 1 is in the first position, the second side wall 312 is located inside the first notch, and the first side 315 abuts against the second side wall 312. The first notch is misaligned with the plug hole. When the protective door 1 is in the second position, the first side 315 and the second side wall 312 are spaced apart, and the first notch corresponds to one of the pin holes.

[0041] Furthermore, such as Figure 4 and Figure 5 As shown, the protective door 1 includes a first extension 12, and one side of the first extension 12 includes the first side edge 315.

[0042] Furthermore, such as Figure 13 As shown, the second sidewall 312 is provided with avoidance areas 123 on both sides. When the protective door 1 is in the first position, the two first extensions 12 are respectively located in the two avoidance areas 123. The avoidance area 123 is provided with the second limiting structure.

[0043] Preferred, such as Figure 1 As shown, the protective door 1 is provided with sliding shafts 33 on both sides, and the socket is provided with two sliding rails 32 that cooperate with the sliding shafts 33. The sliding rails 32 include a vertical guide section 321 and an inclined guide section 322. The guide section 321 and the guide section 322 are bent and connected, and the included angle between them is an obtuse angle. When the protective door 1 is in the first position, it is located inside the guide section 321 and away from the guide section 322, preferably at the end of the guide section 321 away from the guide section 322. When the protective door 1 is in the second position, it is located inside the guide section 322 and away from the guide section 321, preferably at the end of the guide section 322 away from the guide section 321. In this embodiment, the protective door 1 can first move vertically along the guide section 321, and then move inclinedly along the guide section 322, with displacement in both the vertical and horizontal directions. This allows the elastic element 2 to drive the protective door 1 to move vertically along the guide section 321 to block the plug hole when the socket is not in use, thus providing a better dustproof effect.

[0044] like Figure 1 As shown, for ease of understanding, Figure 1The thickness direction of the protective door 1 is defined as the first direction D1, the width direction of the protective door 1 is defined as the second direction D2, and the length direction of the protective door 1 is defined as the third direction D3. The first direction D1 and the second direction D2 are perpendicular, and the third direction D3 is perpendicular to the plane containing the first direction D1 and the second direction D2. When both ends of the protective door 1 are subjected to force at the same time, the protective door 1 first slides along the guide section 321 of the slide rail 32, and the protective door 1 generates displacement in the first direction D1. Then, the protective door 1 slides along the guide section 322, changing the sliding direction. At this time, the protective door 1 generates displacement in both the first direction D1 and the second direction D2. The displacement generated in the second direction D2 causes the protective door 1 to be offset from the plug hole. When one end of the protective door 1 is subjected to force, the protective door 1 can rotate around the sliding shaft 33, or while the protective door 1 rotates around the sliding shaft 33, the sliding shaft 33 undergoes partial displacement in the guide section 321 of the slide rail 32, but will not move to the guide section 322 of the slide rail 32.

[0045] Preferred, such as Figure 1 , Figure 6 , Figure 8 , Figures 10-13 As shown, the socket also includes a second retaining wall 421. The second retaining wall 421 passes through the first through hole 11 and is positioned between the L pole and the N pole to provide insulation and protection. The width of the first through hole 11 is greater than the thickness of the second retaining wall 421. The second retaining wall 421 includes a first side and a second side facing away from each other. The first through hole 11 includes a second side and a third side facing away from each other. In a preferred embodiment, when the protective door 1 is in the first position, the first side of the second retaining wall 421 abuts against the second side of the first through hole 11, and the second side is spaced apart from the third side. When the protective door 1 is in the second position, the second side of the second retaining wall 421 abuts against the third side of the first through hole 11, and the first side is spaced apart from the second side, which can provide dust protection.

[0046] In this embodiment, by setting a first extension 12 and a clearance area 123, when the protective door 1 moves vertically along the guide section 321, the first extension 12, located in the clearance area 123, also moves vertically along the clearance area 123. When the protective door 1 moves tilted along the guide section 322, the first extension 12 moves vertically along the clearance area 123 and moves away from the clearance area 123. That is, the first extension 12 cooperates with the clearance area 123, and the sliding shaft 33 and the sliding rail 32 of the protective door 1 cooperate to jointly play a guiding role, making the sliding of the protective door 1 more stable and reliable. When the protective door 1 is in the second position, the first extension 12 is at least partially located within the clearance area 123.

[0047] Preferably, the socket includes a socket housing, and the protective door structure includes a protective door base 35. At least one of the protective doors 1 and / or at least one of the elastic members 2 are disposed on the protective door base 35, and the protective door base 35 is fixedly installed with the socket housing. Figure 13 A schematic diagram of the structure of the protective door base 35 is shown.

[0048] Furthermore, such as Figures 1-5 and Figure 13 As shown, in one embodiment, the protective door base 35 is provided with at least one protective door mounting groove 31, and at least one protective door 1 is slidably disposed in at least one protective door mounting groove 31. The protective door mounting groove 31 includes a first side wall 311, a second side wall 312, a third side wall 313 and a fourth side wall 314. The first side wall 311 and the third side wall 313 are opposite to each other, and the second side wall 312 and the fourth side wall 314 are opposite to each other. The slide rail 32 is provided on the first side wall 311 and the third side wall 313. At least one second through hole 34 is provided at the bottom of the protective door mounting groove 31 for the plug to pass through.

[0049] Furthermore, in one embodiment, the protective door base 35 is provided with at least one set of opposing first sidewalls 311 and third sidewalls 313, the protective door 1 is slidably mounted on the first sidewalls 311 and third sidewalls 313, the first sidewalls 311 and third sidewalls 313 are provided with slide rails 32, and the bottom of the protective door base 35 is provided with at least one second through hole 34 for the plug to pass through.

[0050] Preferred, such as Figure 1 As shown, the socket housing includes a socket base 41 and a socket cover 42. The socket cover 42 is fitted onto the socket base 41. The plug hole is disposed on the socket cover 42. The plug sleeve is disposed inside the socket base 41. The protective door base 35 is disposed between the plug sleeve and the socket cover 42. Figure 11 This is a cross-sectional view of the socket cover 42, showing the cutting plane containing the first direction D1 and the second direction D2. Figure 12 A structural schematic diagram of the back of the socket cover 42 is shown.

[0051] Furthermore, the protective door base 35 is disposed within the socket base 41, and the socket cover 42 covers the protective door base 35 and / or the socket base 41; or, the protective door base 35 and the socket cover 42 have a modular structure, with the protective door base 35 covering the socket base 41 and the socket cover 42 covering the protective door base 35. The modular design of the protective door base 35 and the socket cover 42 allows for easy installation and replacement and management when used with the socket base 41.

[0052] Furthermore, the protective door base 35 is provided with the second limiting structure, and / or the socket cover 42 is provided with the second limiting structure.

[0053] Furthermore, in another possible implementation, the protective door structure is modularly designed and installed inside the socket housing. The protective door structure also includes a protective door cover (not shown in the figure), which covers the protective door base 35. The protective door cover has at least one set of second plug holes corresponding to at least one set of plug holes. The plug sequentially passes through the plug hole on the socket cover 42, the second plug hole on the protective door cover, and the second through hole 34 in the protective door base 35 to connect with the socket sleeve located in the socket base 41. The modular design of the protective door structure allows for easy installation, replacement, and management.

[0054] When the protective door structure includes a protective door cover and a protective door base 35, the two ends of the second retaining wall 421 are respectively connected to the protective door cover and the protective door base 35, and the second retaining wall 421 is integrally formed with the protective door cover; or, the second retaining wall 421 is integrally formed with the protective door base 35.

[0055] Alternatively, when the protective door structure includes the protective door base 35 but does not include the protective door cover, the two ends of the second retaining wall 421 are respectively connected to the socket cover 42 and the protective door base 35. For example... Figure 12 and Figure 13 As shown, the second barrier 421 is integrally formed with the socket cover 42; or the second barrier 421 is integrally formed with the protective door base 35.

[0056] Preferred, such as Figures 1-10As shown, the two ends of the elastic element 2 are respectively connected to the protective door 1 and the protective door base 35, or the two ends of the elastic element 2 are respectively connected to the protective door 1 and the socket base 41. When the elastic element 2 drives the protective door 1 to the first position, the elastic element 2 drives the protective door 1 to be tightly pressed against the socket cover 42. The protective door 1 is provided with a first fixing part 13, and the protective door base 35 or the socket base 41 is provided with a second fixing part 14. The two ends of the elastic element 2 are connected to the first fixing part 13 and the second fixing part 14. When the two ends of the elastic element 2 are respectively connected to the protective door 1 and the socket base 41, the second fixing part 14 is provided on the socket base 41, and the elastic element 2 passes through the second through hole 34.

[0057] Furthermore, such as Figure 3 and Figure 6 As shown, the first fixing part 13 can be a fixing boss or a fixing groove, and the second fixing part 14 can be a fixing boss or a fixing groove. In this embodiment, the first fixing part 13 is a fixing boss provided on the protective door 1, the second fixing part 14 is a fixing groove provided on the socket base 41, and the elastic member 2 is a compression spring, with one end of the compression spring sleeved on the fixing boss and the other end embedded in the fixing groove. Figure 6 , Figure 8 and Figure 10 A cross-sectional view of the first section of the socket is shown. The first section is a view after the socket is cut with the first fixing part 13 and the second fixing part 14 as the cutting part and the plane containing the first direction D1 and the second direction D2 as the cutting plane. Figure 7 and Figure 9 The diagram shows a cross-sectional view of the socket's second section. This second section is a view after the socket has been cut along the plane containing the first extension 12 and the plane containing the first direction D1 and the second direction D2. Figure 14 This is a cross-sectional view of the socket after the plug is inserted into the socket when the protective door 1 of this utility model is in the second position.

[0058] In a preferred embodiment, such as Figure 6 As shown, when the protective door 1 of the socket is not driven by an external force, the protective door 1 is in the first position. The fixed protrusion on the protective door 1 and the fixed groove on the socket base 41 are a certain distance apart in the first direction D1. That is, the fixed protrusion on the protective door 1 and the fixed groove on the socket base 41 are misaligned in the first direction D1. After the elastic member 2 is connected to the fixed protrusion and the fixed groove, it is in an inclined position. The inclined setting of the elastic member 2 is to provide the protective door 1 with the initial potential energy to move to the first position, so that the protective door 1 has a better shielding effect and further improves the safety of the socket.

[0059] In this embodiment, the socket includes a socket base 41 and a socket cover 42. The socket cover 42 is fitted onto the socket base 41. A protective door base 35 is installed inside the socket base 41. The first extension 12 has groove structures 121 and / or boss structures 122 on two opposite sides along the thickness direction of the protective door 1. The socket cover 42 has boss structures 122 and / or groove structures 121. The protective door base 35 has boss structures 122 and / or groove structures 121. When the protective door 1 is inserted by a single pole, the end of the protective door 1 that is subjected to force is biased. When the end with the first extension 12 is subjected to force (e.g. Figure 7 As shown), the first extension 12 swings toward the protective door base 35, and the groove structure 121 and / or boss structure 122 on the first extension 12 cooperates with the boss structure 122 and / or groove structure 121 in the protective door base 35 to limit its movement; when the end of the protective door 1 with the first through hole 11 is subjected to force (such as... Figure 9 As shown, one end of the first extension 12 swings toward the socket cover 42, and the groove structure 121 and / or boss structure 122 on the first extension 12 are matched with the boss structure 122 and / or groove structure 121 on the socket cover 42.

[0060] Preferred, such as Figure 1 As shown in this embodiment, the socket cover 42 includes two sets of plug holes. One set of plug holes includes two pin holes for inserting a two-prong plug, and the other set of plug holes includes three pin holes for inserting a three-prong plug. Correspondingly, the socket base 41 is provided with two sets of socket sleeves. One set of socket sleeves includes two clamping arms, which are used to clamp the L-pin and N-pin of the two-prong plug, respectively. The other set of socket sleeves includes three clamping arms, which are used to clamp the L-pin, N-pin, and ground pin of the three-prong plug, respectively.

[0061] Furthermore, such as Figures 2-5 As shown, the two pins of the two-prong plug are arranged in parallel, therefore the two pin holes of the plug hole that mates with them are parallel. The first through hole 11 of the protective door 1 used to cover the two pin holes and the first side 315 between the two first extensions 12 are parallel. The L-prong and N-prong pins of the three-prong plug are arranged at an angle, therefore the two pin holes of the plug hole that mates with them are angled. The first through hole 11 of the protective door 1 used to cover the two pin holes is angled, and one end of the first extension 12 has an angled first side 315. Figure 2 and Figure 3 The diagram shows the front and back structural schematics of the protective door 1 corresponding to the two-prong plug. Figure 4 and Figure 5 The diagram shows the front and back of the protective door 1 corresponding to the three-prong plug.

[0062] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used during use. They are only for ease of description and do not indicate that the device or component referred to must have a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating relative importance.

[0063] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A socket comprising at least one set of plug holes and at least one set of plug sleeves, at least one set of plug sleeves corresponding to at least one set of plug holes, the plug holes comprising at least two plug pin holes, the plug sleeves comprising at least two sets of clamping arms, the socket further comprising at least one protective door (1) and at least one elastic member (2), the at least one protective door (1) being slidingly arranged in the socket, the elastic member (2) driving the protective door (1) to a first position, the protective door (1) shielding between the corresponding plug sleeve and plug hole, the protective door (1) being driven to a second position by overcoming the elastic force of the elastic member (2) after being subjected to an external force, the protective door (1) being misaligned with the plug hole, characterized in that the protective door (1) comprising a first through hole (11), the first through hole (11) being misaligned with the plug hole when the protective door (1) is in the first position, the first through hole (11) corresponding to one of the plug pin holes when the protective door (1) is in the second position, the protective door (1) being provided with a first extension (12) at an end away from the first through hole (11), the first extension (12) being provided with a first limiting structure on two opposite surfaces or one surface along the thickness direction of the protective door (1), the socket being provided with a second limiting structure cooperating with the first limiting structure for limiting, the protective door (1) being prevented from moving from the first position to the second position when the first limiting structure and the second limiting structure are limited by the tilting of the protective door (1).

2. The socket of claim 1, wherein The first limiting structure is a groove structure (121), and the second limiting structure is a boss structure (122); or, the first limiting structure is a boss structure (122), and the second limiting structure is a groove structure (121).

3. The socket of claim 1, wherein The protective door (1) comprises two first extensions (12) arranged in parallel and spaced apart, a first gap being formed between the two first extensions (12), the first gap comprising a first side edge (315), the socket being provided with a second side wall (312) opposite to the first side edge (315), the second side wall (312) being located in the first gap and the first side edge (315) abutting against the second side wall (312) when the protective door (1) is in the first position, the first gap being misaligned with the plug hole, the first side edge (315) being spaced apart from the second side wall (312) and the first gap corresponding to one of the plug pin holes when the protective door (1) is in the second position.

4. The socket of claim 3, wherein Two sides of the second side wall (312) are provided with a relief area (123), the two first extensions (12) being located in the two relief areas (123) respectively when the protective door (1) is in the first position, the second limiting structure being arranged in the relief area (123).

5. The socket of claim 4, wherein, Both sides of the protective door (1) are provided with a sliding shaft (33), the socket being provided with two slide rails (32) cooperating with the sliding shaft (33) for mounting, the slide rail (32) comprising a vertical guide segment (321) and an inclined guide segment (322), the guide segment (321) and the guide segment (322) being connected by bending and the included angle therebetween being an obtuse angle. The protection door (1) is located in the guiding section (321) and away from the guiding section (322) when the protection door (1) is in the first position, and the protection door (1) is located in the guiding section (322) and away from the guiding section (321) when the protection door (1) is in the second position.

6. The socket of claim 5, wherein, When the protection door (1) moves in the vertical direction along the guiding section (321), the first extension (12) moves in the vertical direction along the avoiding area (123), and when the protection door (1) moves in the inclined direction along the guiding section (322), the first extension (12) moves in the vertical direction along the avoiding area (123) and moves away from the avoiding area (123), and the first extension (12) is at least partially located in the avoiding area (123) when the protection door (1) is in the second position.

7. The socket of claim 5, wherein The socket comprises a protection door base (35), at least one set of opposite first side walls (311) and third side walls (313) are arranged on the protection door base (35), the protection door (1) is slidingly installed on the first side walls (311) and the third side walls (313), sliding rails (32) are arranged on the first side walls (311) and the third side walls (313), sliding shafts (33) are extended from both sides of the protection door (1), the sliding shafts (33) are slidingly matched with the sliding rails (32), and at least one second through hole (34) is arranged on the bottom of the protection door base (35).

8. The socket of claim 6, wherein The socket comprises a protection door base (35), at least one protection door mounting groove (31) is arranged on the protection door base (35), and at least one protection door (1) is slidingly arranged in the at least one protection door mounting groove (31) in one-to-one correspondence, the protection door mounting groove (31) comprises first side walls (311), second side walls (312), third side walls (313) and fourth side walls (314), the first side walls (311) and the third side walls (313) are opposite, the second side walls (312) and the fourth side walls (314) are opposite, the protection door (1) is slidingly installed on the first side walls (311) and the third side walls (313), sliding rails (32) are arranged on the first side walls (311) and the third side walls (313), sliding shafts (33) are extended from both sides of the protection door (1), the sliding shafts (33) are slidingly matched with the sliding rails (32), and at least one second through hole (34) is arranged on the bottom of the protection door base (35).

9. Socket according to claim 7 or 8, characterized in that The socket comprises a socket base (41) and a socket face cover (42), the plug holes are arranged on the socket face cover (42), the socket sleeve is arranged in the socket base (41), the protection door base (35) is arranged between the socket sleeve and the socket face cover (42), The protection door base (35) is arranged in the socket base (41), and the socket face cover (42) covers the protection door base (35) and / or the socket base (41); or the protection door base (35) covers the socket base (41), and the socket face cover (42) covers the protection door base (35). The second limiting structure is arranged on the protection door base (35), and / or the second limiting structure is arranged on the socket surface cover (42).

10. The socket of claim 9, wherein, The elastic member (2) is connected to the protection door (1) and the socket base (41) at two ends thereof through the second through hole (34), or the elastic member (2) is connected to the protection door (1) and the protection door base (35) at two ends thereof, and the elastic member (2) drives the protection door (1) to be located at the first position, and the protection door (1) is tightly attached to the socket surface cover (42).

Images