Socket

Abstract

The utility model provides a socket which comprises at least one protection door and at least one elastic piece, the at least one protection door is slidably arranged in the socket, the elastic piece drives the protection door to slide to a first position, the protection door shields a plug hole, the protection door overcomes the elastic force of the elastic piece to slide to a second position after being subjected to external force, and the protection door and the plug hole are staggered. The protection door comprises a first via hole, the first via hole comprises a first side edge, one end, away from the first via hole, of the protection door comprises a third side edge, the first side edge comprises a first concave-convex part, a third concave-convex part matched with the first concave-convex part for limiting is arranged in the socket, and the third side edge comprises a second concave-convex part. A fourth concave-convex part matched with the second concave-convex part for limiting is arranged in the socket, the first concave-convex part and the second concave-convex part comprise a plurality of protrusions and grooves which are alternately arranged, and the third concave-convex part and the fourth concave-convex part comprise a plurality of limiting ribs which are arranged in parallel at intervals.

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 typically incorporates a protective shutter structure. This shutter blocks the socket's opening, and the plug is activated by the shutter, releasing it and allowing the plug to be inserted into the socket. However, in existing technology, the side of the protective shutter is flat. This allows a conductive metal rod to enter the socket through the gap between the side of the protective shutter and the side wall it adheres to, leading to a potential hazard. Furthermore, the protective shutter's stability is relatively poor. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a socket with better stability against 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 in the socket. The elastic element drives the protective door to move to a first position. After the protective door is subjected to external force, it overcomes the elastic force of the elastic element and can move to a second position. 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 pin holes.

[0007] The first through hole includes a first side, and the end of the protective door away from the first through hole includes a third side. The first side includes a first protrusion and recess, and the socket is provided with a third protrusion and recess that cooperates with and limits the first protrusion and recess. Alternatively, the third side includes a second protrusion and recess, and the socket is provided with a fourth protrusion and recess that cooperates with and limits the second protrusion and recess.

[0008] The first and second concave-convex portions each include a plurality of alternately arranged protrusions and grooves. The third and fourth concave-convex portions each include a plurality of parallel and spaced-apart limiting ribs. A limiting groove is formed between two adjacent limiting ribs. The protrusions of the first and second concave-convex portions limit the limiting grooves, and the grooves of the first and second concave-convex portions limit the limiting ribs.

[0009] In one possible implementation, the first and / or the second concave-convex portion is a sawtooth or wave structure.

[0010] In one possible implementation, the width of the protrusion on the first concave-convex portion is less than 2 mm, and the width of the groove is less than 2 mm; and / or, the width of the protrusion on the second concave-convex portion is less than 2 mm, and the width of the groove is less than 2 mm.

[0011] In one possible implementation, two sliding shafts are provided on both sides of the protective door, and two sliding grooves are provided in the socket to cooperate with the sliding shafts. The sliding grooves 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, the socket has an internal baffle, the third protrusion is disposed on the baffle, the baffle passes through a first through hole on the protective door, the thickness of the baffle is less than the width of the first through hole, when the protective door moves vertically along the guide section, the first protrusion and the third protrusion slide in vertical direction, and when the protective door moves tilted along the guide section, the first protrusion moves away from the third protrusion.

[0014] In one possible implementation, the socket includes a protective door base, the protective door base including at least one protective door mounting groove, at least one protective door being slidably mounted in at least one protective door mounting groove, the protective door mounting groove including a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall, the first sidewall and the third sidewall being opposite each other, the second sidewall and the fourth sidewall being opposite each other, the second sidewall and the fourth sidewall being provided with the sliding groove, the first sidewall being provided with the fourth protrusion, when the protective door moves vertically along the guide section, the second protrusion and the fourth protrusion slide in a vertical engagement, when the protective door moves tilted along the guide section, the second protrusion moves away from the fourth protrusion, when the protective door is in a second position, the second protrusion and the fourth protrusion are spaced apart and the gap between the second protrusion and the fourth protrusion corresponds to one of the pin holes, and at least one first through hole is opened at the bottom of the protective door base.

[0015] In one possible implementation, at least one side of the first sidewall is provided with a recessed clearance area, and at least one side of the third side of the protective door is provided with a raised first extension. The length of the raised first extension is greater than the length of the raised second recess. When the protective door moves vertically along the guide section, the first extension is located in the clearance area and also moves vertically along the clearance area. When the protective door moves tilted along the guide section, the first extension moves vertically along the clearance area and moves away from the clearance area. When the protective door is in the second position, the first extension is at least partially located within the clearance area.

[0016] In one possible implementation, the third side is provided with two first extensions spaced apart, the second concave-convex portion is located between the two first extensions, both sides of the first sidewall are provided with clearance areas, and the fourth concave-convex portion is located between the clearance areas on both sides; or, the third side is provided with one first extension, the second concave-convex portion is located on one side of the first extension, one side of the first sidewall is provided with a clearance area, and the fourth concave-convex portion is located on one side of the clearance area.

[0017] In one possible implementation, the socket further includes a socket base and a socket cover, with at least one set of inserts disposed within the socket base and at least one set of plug holes disposed on the socket cover, the protective door base being disposed between the inserts and the socket cover.

[0018] The protective door base is disposed inside the socket base, and the socket cover is fitted onto the socket base and / or the protective door base;

[0019] Alternatively, the protective door base covers the socket base, and the socket cover covers the protective door base.

[0020] In one possible implementation, the elastic element passes through the first 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 protective door is in the first position, the elastic element drives the protective door to fit tightly against the socket cover.

[0021] In one possible implementation, the socket includes two protective doors, namely a first protective door and a second protective door, wherein the first protective door has a first side and a third side arranged in parallel, and the second protective door has a first side and a third side arranged at an angle.

[0022] Compared to existing technologies, this application provides the first, third, second, and fourth concave-convex portions inside the socket. When a metal conductive rod is inserted into the socket in a single-pole configuration, the gap between the protective door and the socket housing can be made to resemble a wave shape. For metal conductive rods of the same diameter, the wave-shaped gap makes it more difficult for the metal conductive rod to be inserted, thereby improving the protective performance of the protective door and providing a better effect against single-pole insertion.

[0023] Furthermore, the socket includes a socket base and a socket cover, with at least one set of socket sleeves disposed inside the socket base and at least one set of plug holes disposed on the socket cover. The protective door base is detachably installed on the socket base, and the socket cover is closed on the protective door base. By making the protective door structure modularly designed, installation and disassembly are convenient, maintenance and replacement are easy, the number of internal parts of the socket is reduced, making it easier to manage and suitable for automated assembly. Attached Figure Description

[0024] Figure 1 This is an exploded view of the socket of this utility model;

[0025] 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;

[0026] 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;

[0027] Figure 6 , Figure 8 and Figure 10 This is a sectional view of the first section of the socket of this utility model;

[0028] Figure 7 and Figure 9 This is a sectional view of the second section of the socket of this utility model;

[0029] Figure 11 This is a cross-sectional view of the socket cover of this utility model;

[0030] Figure 12 and Figure 13 This is a schematic diagram of the structure of the back of the socket cover of this utility model;

[0031] Figure 14 This is a schematic diagram of the structure of the protective door base of this utility model;

[0032] Figure 15 This is a cross-sectional view of the socket when the protective door of this utility model is in the second position;

[0033] The reference numerals in the attached drawings include: protective door 1; elastic element 2; first through hole 11; first concave-convex portion 316; second concave-convex portion 315; third concave-convex portion 317; fourth concave-convex portion 318; first direction D1; second direction D2; third direction D3; baffle 421; first side wall 311; protective door base 35; protective door mounting groove 31; second side wall 312; third side wall 313; fourth side wall 314; sliding shaft 33; sliding groove 32; guide section 321; guide section 322; socket base 41; socket cover 42; second boss 13; first groove 14; first extension 12; clearance area 123; first limiting protrusion 422. Detailed Implementation

[0034] 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.

[0035] The socket includes a socket housing, a socket sleeve disposed in the socket housing, and a plug hole disposed on the socket housing. The socket includes at least one set of socket sleeves, each set of socket sleeves including at least two sets of clamping arms. The socket includes at least one set of plug holes, each set of plug holes including at least two pin holes. A protective door structure is provided between the plug hole and the socket sleeve of the socket. The protective door structure is used to block the plug hole of the socket when the socket is not in use, preventing small objects from entering and causing safety problems.

[0036] The protective door structure of this application includes at least one protective door 1 and at least one elastic element 2. The protective door 1 is slidably disposed inside the socket and can reciprocate between a first position and a second position. The elastic element 2 is connected to the protective door 1, driving the protective door 1 to slide to the first position, where the protective door 1 blocks the corresponding socket and plug hole. When subjected to external force, the protective door 1 overcomes the elastic force of the elastic element 2 and slides to the second position, where the protective door 1 is misaligned with the plug hole, allowing the plug to be inserted into the plug hole. The elastic element 2 can be, but is not limited to, a compression spring, a spring, or a tension spring; in this embodiment, the elastic element 2 is a compression spring.

[0037] like Figures 1-5 and Figures 12-14As shown, the protective door 1 includes a first through hole 11 for a pin to pass through. When the protective door 1 is in the first position, the first through hole 11 is misaligned with the plug hole. When the protective door is in the second position, the first through hole 11 corresponds to one of the plug holes. The first through hole 11 includes opposing first and second sides. The end of the protective door 1 away from the first through hole 11 includes a third side. The first side includes a first concave-convex portion 316. The socket is provided with a third concave-convex portion 317 that cooperates with and limits the first concave-convex portion 316. When the protective door 1 is in the first position, the first concave-convex portion 316 and the third concave-convex portion 317 are tightly fitted together, and / or, the third side includes a second concave-convex portion 315. The socket is provided with a fourth concave-convex portion 318 that cooperates with and limits the second concave-convex portion 315. When the protective door 1 is in the first position, the second concave-convex portion 315 and the fourth concave-convex portion 318 are tightly fitted together, which can prevent dust from entering. Meanwhile, as... Figures 7-10 As shown, compared with the prior art, this application provides the first concave-convex portion 316, the third concave-convex portion 317, the second concave-convex portion 315 and the fourth concave-convex portion 318 in the socket. When a metal conductive rod is inserted into the socket in a single pole, the gap between the protective door 1 and the socket housing can be made to resemble a wave shape. For metal conductive rods of the same diameter, the wave-shaped gap makes it more difficult for the metal conductive rod to be inserted, which can improve the protective performance of the protective door 1 and has a better effect in preventing single pole insertion.

[0038] 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. When the protective door 1 is slid to the second position by external force, the first through hole 11 corresponds to the position of a pin hole. There are at least two pins on the plug. One pin can be connected to the socket through the first through hole 11, and the other pin passes through one side of the third side and is connected to the socket.

[0039] Preferred, such as Figures 2-5 and Figures 12-14As shown, the first and second convex portions 316 and 315 include a plurality of alternately arranged protrusions and grooves. The third and fourth convex portions 317 and 318 each include a plurality of parallel and spaced-apart limiting ribs. A limiting groove is formed between two adjacent limiting ribs. The protrusions of the first and second convex portions 316 and 315 limit the limiting grooves, and the grooves of the first and second convex portions 316 and 315 limit the limiting ribs. Since the protrusion of the first concave-convex portion 316 extends into the limiting groove of the plane where the third concave-convex portion 317 is located, it can be understood that the protrusion passes through the plane where the third concave-convex portion 317 is located. When the metal conductive rod is inserted into the socket and the protective door 1 is tilted, the plane where the top of the protrusion on the first concave-convex portion 316 is located is still behind the plane where the top of the limiting rib protrusion of the third concave-convex portion 317 is located (that is, when the pole is inserted, the first concave-convex portion 316 and the third concave-convex portion 317 are still intersecting each other) or the gap between the first concave-convex portion 316 and the top of the limiting rib protrusion of the third concave-convex portion 317 is located is very small, making it difficult for the metal conductive rod to pass between the first concave-convex portion 316 and the third concave-convex portion 317, thus improving the protective performance of the protective door 1 and having a better effect against single-pole insertion. The second concave-convex portion 315 and the fourth concave-convex portion 318 are based on the same principle and will not be described in detail.

[0040] Preferably, the first and second protrusions 316 and 315 are serrated or wavy structures. In a preferred embodiment, the width of the protrusion on the first protrusion 316 is less than 2 mm, and the width of the groove is less than 2 mm; and / or, the width of the protrusion on the second protrusion 315 is less than 2 mm, and the width of the groove is less than 2 mm. Because the width of the protrusion and / or the groove is less than 2 mm, when a metal conductive rod with a diameter greater than 2 mm is inserted into one end of the protective door, the metal conductive rod contacts the two sides of the groove, making it impossible for the metal conductive rod to pass between the first and third protrusions 316 and 317, and / or, to pass between the second and fourth protrusions 315 and 318, thus making it more difficult to insert the metal conductive rod.

[0041] To make it easier to understand, Figure 1 The thickness direction of the socket is defined as the first direction D1, the width direction of the socket is defined as the second direction D2, and the height direction of the socket is defined as the third direction D3. The first direction D1, the second direction D2, and the third direction D3 are perpendicular to each other.

[0042] Preferably, the protective door 1 is provided with two sliding shafts 33 on both sides, and the socket is provided with two sliding grooves 32 that cooperate with the sliding shafts 33. The sliding groove 32 includes 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.

[0043] When the protective door 1 is in the first position, it is located within 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 within 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.

[0044] In this embodiment, the protective door 1 can first move vertically along the guide section 321 (i.e., the first direction D1), and then move obliquely along the guide section 322, with displacement in both the vertical and horizontal directions. That is, displacement occurs in both the first direction D1 and the second direction D2, so that when the socket is not in use, the elastic member 2 drives the protective door 1 to move vertically upward along the guide section 321 to block the plug hole, which has a better dustproof effect.

[0045] like Figure 1 As shown, when both ends of the protective door 1 are subjected to force simultaneously, the protective door 1 first slides along the guide section 321 of the slide rail 32, and the protective door 1 is displaced 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 is displaced 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 is partially displaced in the guide section 321 of the slide rail 32, but will not move to the guide section 322 of the slide rail 32.

[0046] Preferably, the first extension 12 is provided with a first limiting structure on one or both sides opposite to the thickness direction of the protective door 1, and 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.

[0047] Preferred, such as Figures 11-14 As shown, the socket has an internal baffle 421 located in the plane containing the first direction D1 and the third direction D3. A third protrusion 317 is disposed on the baffle 421. The baffle 421 passes through a first through hole 11 on the protective door 1. The thickness of the baffle 421 is less than the width of the first through hole 11. When the protective door 1 moves vertically along the guide section 321, the first protrusion 316 and the third protrusion 317 slide in a vertical engagement. When the protective door 1 moves tilted along the guide section 322, the first protrusion 316 moves away from the third protrusion 317. The baffle 421, positioned between the L and N poles, provides insulation and protection. When a single pole is inserted into the protective door 1, the baffle 421 also serves as a limiting element.

[0048] Preferred, such as Figures 1-5 and Figure 14 As shown, the protective door structure also includes a protective door base 35, which includes at least one protective door mounting groove 31. At least one protective door 1 is slidably mounted in the 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 protective door 1 is slidably mounted on the second side wall 312 and the fourth side wall 314. Two sliding shafts 33 are provided on both sides of the protective door 1. Two sliding grooves 32 are provided on the second side wall 312 and the fourth side wall 314. The two sliding shafts 33 of the protective door 1 are slidably mounted within the sliding grooves 32 of the second side wall 312 and the fourth side wall 314. The fourth concave-convex part 318 is provided on the first side wall 311. When the protective door 1 moves vertically along the guide section 321, the second concave-convex part 315 and the fourth concave-convex part 318 slide in a vertical direction. When the protective door 1 moves tilted along the guide section 322, the second concave-convex part 315 moves away from the fourth concave-convex part 318. When the protective door 1 is in the second position, the second concave-convex part 315 and the fourth concave-convex part 318 are spaced apart, and the gap between the second concave-convex part 315 and the fourth concave-convex part 318 corresponds to one of the pin holes. Figure 14 A schematic diagram of the structure for protecting the door base 35.

[0049] Furthermore, the bottom of the protective door mounting groove 31 is provided with at least one first through hole 34, through hole 34 for the pin to pass through.

[0050] Preferred, such as Figures 1-5 and Figure 14 As shown, at least one side of the first sidewall 311 is provided with a recessed clearance area 123, and at least one side of the third side of the protective door 1 is provided with a protruding first extension 12. The length of the protrusion of the first extension 12 is greater than the length of the protrusion of the second concave-convex part 315. When the protective door 1 moves vertically along the guide section 321, the first extension 12 is located in the clearance area 123 and 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. When the protective door 1 is in the second position, the first extension 12 is at least partially located within 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.

[0051] Furthermore, such as Figure 2 and Figure 3 As shown, two first extension portions 12 are arranged parallel to each other on the third side, the second concave-convex portion 315 is located between the two first extension portions 12, and avoidance areas 123 are provided on both sides of the first sidewall 311, and the fourth concave-convex portion 318 is located between the avoidance areas 123 on both sides; or, as Figure 4 and Figure 5 As shown, the third side is provided with a first extension 12, the second concave and convex portion 315 is located on one side of the first extension 12, the first sidewall 311 is provided with a clearance area 123 on one side, and the fourth concave and convex portion 318 is located on one side of the clearance area 123.

[0052] Preferred, such as Figure 1 As shown, the socket housing includes a socket base 41 and a socket cover 42. At least one set of socket sleeves is disposed within the socket base 41, and at least one set of plug holes is disposed on the socket cover 42. The protective door base 35 is located between the socket sleeves and the socket cover 42.

[0053] The protective door base 35 is disposed inside the socket base 41, and the socket cover 42 covers the socket base 41 and / or the protective door base 35.

[0054] Alternatively, the protective door base 35 can be detachably mounted on the socket base 41, and the socket cover 42 can be fitted onto the protective door base 35, enabling a modular design of the protective door structure. This facilitates installation and disassembly, inspection and replacement, reduces the number of internal socket parts for easier management, and is suitable for automated assembly. Figure 11 This is a cross-sectional view of the socket cover 42, showing the plane containing the first direction D1 and the second direction D2 as the cutting plane. Figure 12 and Figure 13 A structural schematic diagram of the back of the socket cover 42 is shown.

[0055] Furthermore, the elastic element 2 is installed between the socket base 41 and the protective door 1. One end of the elastic element 2 is installed on the socket base 41 through the first through hole 34, and the other end is installed on the back of the protective door 1; or, the elastic element 2 is disposed between the protective door base 35 and the protective door 1. One end of the elastic element 2 is installed at the bottom of the protective door mounting groove 31, and the other end is installed on the back of the protective door 1.

[0056] When the protective door 1 is in the first position, the elastic element 2 drives the protective door 1 to fit tightly against the socket cover 42, which has a better dustproof effect.

[0057] Furthermore, such as Figure 3 and Figure 6As shown, the socket base 41 or the protective door base 35 is provided with a first groove 14 or a first protrusion, and the back of the protective door 1 is provided with a second groove or a second protrusion 13. One end of the elastic member 2 is installed on the first groove 14 or the first protrusion, and the other end is installed on the second groove or the second protrusion 13. In the embodiments of this application, as shown... Figure 6 As shown, a first groove 14 is provided on the socket base 41, a second protrusion 13 is provided on the back of the protective door 1, and the elastic member 2 passes through the first through hole 34 on the protective door base 35.

[0058] Furthermore, in another embodiment, the protective door structure further includes a protective door cover (not shown in the figure). The protective door 1 is installed in the protective door mounting groove 31, and the protective door cover is fitted onto the protective door base 35. The protective door cover includes multiple second through holes, which are structurally consistent with and positionally correspond to the pin holes of the plug hole. The pin passes through the plug hole on the socket cover 42, the second through holes on the protective door cover, and the first through hole 34 of the protective door mounting groove 31, and then engages with the socket sleeve in the socket base 41. The elastic element 2 drives the protective door 1 to block between the second through holes and the socket sleeve. In a preferred embodiment, the protective door structure is modularly designed. The elastic element 2 is installed between the protective door mounting groove 31 and the protective door 1. The modular design of the protective door structure makes installation and disassembly convenient, facilitates maintenance and replacement, reduces the number of internal parts of the socket, facilitates management, and is suitable for automated assembly.

[0059] The baffle 421 includes a first end and a second end.

[0060] Furthermore, the baffle 421 is disposed between the socket cover 42 and the protective door mounting groove 31, and the first end of the baffle 421 is integrally formed with the socket cover 42; or the first end of the baffle 421 is integrally formed with the bottom of the protective door mounting groove 31.

[0061] Furthermore, the baffle 421 is disposed between the protective door cover and the protective door mounting groove 31, and the first end of the baffle 421 is integrally formed with the protective door cover; or the first end of the baffle 421 is integrally formed with the bottom of the protective door mounting groove 31.

[0062] Furthermore, the second limiting structure is disposed within the avoidance zone 123, and / or the second limiting structure is disposed on the back of the protective door cover or the second limiting structure is disposed on the back of the socket cover 42.

[0063] In one embodiment, the protective door 1 has a first limiting structure on both opposite sides. When one end of the protective door 1 is subjected to force and sinks, it moves like a rocker within the protective door mounting groove 31. When the end of the protective door 1 away from the first extension 12 is subjected to force and sinks (e.g. Figure 9 and Figure 10As shown), the first extension 12 is raised and abuts against the second limiting structure on the protective door cover or socket cover 42; when the end of the first extension 12 is subjected to force and sinks (as shown), Figure 7 and Figure 8 As shown, the first extension 12 abuts against the second limiting structure in the protective door mounting groove 31, preventing the protective door 1 from continuing to rotate and avoiding the protective door 1 from rotating in the protective door mounting groove 31 and thus releasing the obstruction of the force-bearing end pin hole.

[0064] In a preferred embodiment, such as Figure 6 As shown, when the protective door 1 is not driven by an external force, the protective door 1 is in the first position. The second protrusion 13 on the protective door 1 and the first groove 14 on the socket base 41 are a certain distance apart in the first direction D1. That is, the second protrusion 13 on the protective door 1 and the first groove 14 on the socket base 41 are misaligned in the first direction D1. After the elastic member 2 is connected to the second protrusion 13 and the first groove 14, 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.

[0065] Furthermore, such as Figure 6 As shown, a first limiting protrusion 422 is provided on the back of the socket cover 42 or the protective door cover. When the protective door 1 is in the first position, the first limiting protrusion 422 and the baffle 421 limit one end of the protective door 1 in the second direction D2. The protective door 1 is simultaneously subjected to force at both ends, causing the protective door 1 to slide along the guide section 321 of the sliding shaft 33 towards the guide section 322. The protective door 1 gets rid of the limitation of the first limiting protrusion 422 and the baffle 421, allowing the protective door 1 to be displaced in the second direction D2. By providing a first limiting protrusion 422 on the back of the socket cover 42 or the protective door cover to limit one end of the protective door 1, when the protective door 1 is reset to the first position, one end of the protective door 1 is stuck between the first limiting protrusion 422 and the baffle 421, and the elastic member 2 is in the tilted position.

[0066] in, Figure 6 , Figure 8 and Figure 10 The first section of the socket of this application is shown in a cross-sectional view. The first section is a view after the socket is cut with the second boss 13 and the first groove 14 as the cutting parts and the plane containing the first direction D1 and the second direction D2 as the cutting surface. Figure 7 and Figure 9 The diagram shows a cross-sectional view of the socket of this application, which is a view after the socket has been cut with the first extension 12 as the cutting part and the plane containing the first direction D1 and the second direction D2 as the cutting surface. Figure 15 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.

[0067] like Figures 1-14 As shown, the socket in this embodiment includes two sets of plug holes. One set of plug holes includes two pin holes for the L-pole and N-pole pins of a two-pole plug to pass through, respectively. The other set of plug holes includes three pin holes for the L-pole, N-pole, and ground pins of a three-pole plug to pass through, respectively. The socket includes two protective doors 1, namely a first protective door and a second protective door. The first and third sides of the first protective door are parallel, while the first and third sides of the second protective door are inclined. The protective door base 35 includes two protective door mounting slots 31, namely a first protective door mounting slot and a second protective door mounting slot. The first protective door is installed in the first protective door mounting slot, and the second protective door is installed in the second protective door mounting slot. The first protective door is used to cover the plug holes in the two pin holes, and the second protective door is used to cover the L-pole and N-pole pin holes in the three pin holes. Figure 2 and Figure 3 This is a structural diagram of the front and back of the first protective door. Figure 4 and Figure 5 This is a structural diagram of the front and back of the second protective door.

[0068] 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.

[0069] 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, the socket comprising 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 hole comprising at least two pin holes, and the socket sleeve comprising at least two sets of clamping arms. The socket further includes at least one protective door (1) and at least one elastic element (2). At least one protective door (1) is slidably disposed in the socket. The elastic element (2) drives the protective door (1) to move to a first position. After being subjected to external force, the protective door (1) overcomes the elastic force of the elastic element (2) and can move to a second position. The protective door (1) includes a first through hole (11). When the protective door (1) is in the first position, the first through hole (11) is misaligned with the plug hole. When the protective door is in the second position, the first through hole (11) corresponds to one of the pin holes. Its features are, The first through hole (11) includes a first side, and the end of the protective door (1) away from the first through hole (11) includes a third side. The first side includes a first concave-convex portion (316), and the socket is provided with a third concave-convex portion (317) that cooperates with and limits the first concave-convex portion (316). And / or, the third side includes a second protrusion (315), and the socket is provided with a fourth protrusion (318) that cooperates with and limits the second protrusion (315). The first and second concave-convex portions (316 and 315) each include a plurality of alternately arranged protrusions and grooves, and the third and fourth concave-convex portions (317 and 318) each include a plurality of parallel and spaced-apart limiting ribs, with a limiting groove formed between two adjacent limiting ribs. The protrusions of the first concave-convex portion (316) and the second concave-convex portion (315) are limited by the limiting groove, and the grooves of the first concave-convex portion (316) and the second concave-convex portion (315) are limited by the limiting rib.

2. The socket according to claim 1, characterized in that, The first concave-convex portion (316) and / or the second concave-convex portion (315) are sawtooth or wave structures.

3. The socket according to claim 1, characterized in that, The width of the protrusion on the first concave-convex portion (316) is less than 2 mm, and the width of the groove is less than 2 mm; and / or, the width of the protrusion on the second concave-convex portion (315) is less than 2 mm, and the width of the groove is less than 2 mm.

4. The socket according to claim 1, characterized in that, The protective door (1) is provided with two sliding shafts (33) on both sides. The socket is provided with two sliding grooves (32) that cooperate with the sliding shafts (33). The sliding groove (32) includes 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 within the guide section (321) and away from the guide section (322). When the protective door (1) is in the second position, it is located within the guide section (322) and away from the guide section (321).

5. The socket according to claim 4, characterized in that, The socket is provided with a baffle (421) inside, and the third concave-convex part (317) is provided on the baffle (421). The baffle (421) passes through the first through hole (11) on the protective door (1). The thickness of the baffle (421) is less than the width of the first through hole (11). When the protective door (1) moves vertically along the guide section (321), the first concave-convex part (316) and the third concave-convex part (317) slide in the vertical direction. When the protective door (1) moves tilted along the guide section (322), the first concave-convex part (316) moves away from the third concave-convex part (317).

6. The socket according to claim 5, characterized in that, The socket includes a protective door base (35), the protective door base (35) includes at least one protective door mounting groove (31), at least one protective door (1) is slidably installed 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, the second side wall (312) and the fourth side wall (314) are opposite to each other, the second side wall (312) and the fourth side wall (314) are provided with the sliding groove (32), the first side wall (311) is provided with When the protective door (1) moves vertically along the guide section (321), the second concave-convex part (315) and the fourth concave-convex part (318) slide in the vertical direction. When the protective door (1) moves tilted along the guide section (322), the second concave-convex part (315) moves away from the fourth concave-convex part (318). When the protective door (1) is in the second position, the second concave-convex part (315) and the fourth concave-convex part (318) are spaced apart and the gap between the second concave-convex part (315) and the fourth concave-convex part (318) corresponds to one of the pin holes. At least one first through hole (34) is opened at the bottom of the protective door base (35).

7. The socket according to claim 6, characterized in that, At least one side of the first sidewall (311) is provided with a recessed clearance area (123), and at least one side of the third side of the protective door (1) is provided with a protruding first extension (12). The length of the protrusion of the first extension (12) is greater than the length of the protrusion of the second concave-convex part (315). When the protective door (1) moves vertically along the guide section (321), the first extension (12) is located in the clearance area (123) and 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). When the protective door (1) is in the second position, the first extension (12) is at least partially located in the clearance area (123).

8. The socket according to claim 7, characterized in that, The third side is provided with two first extensions (12) spaced apart, the second concave-convex part (315) is located between the two first extensions (12), the first sidewall (311) is provided with a clearance area (123) on both sides, and the fourth concave-convex part (318) is located between the clearance areas (123) on both sides; or, the third side is provided with one first extension (12), the second concave-convex part (315) is located on one side of the first extension (12), the first sidewall (311) is provided with a clearance area (123) on one side, and the fourth concave-convex part (318) is located on one side of the clearance area (123).

9. The socket according to claim 6, characterized in that, The socket also includes a socket base (41) and a socket cover (42), at least one set of socket sleeves is disposed inside the socket base (41), at least one set of plug holes is disposed on the socket cover (42), and the protective door base (35) is disposed between the socket sleeves and the socket cover (42). The protective door base (35) is disposed inside the socket base (41), and the socket cover (42) covers the socket base (41) and / or the protective door base (35); Alternatively, the protective door base (35) covers the socket base (41), and the socket cover (42) covers the protective door base (35).

10. The socket according to claim 9, characterized in that, The elastic element (2) passes through the first through hole (34) and is connected at both ends to the protective door (1) and the socket base (41); or, the two ends of the elastic element (2) are connected to the protective door (1) and the protective door base (35) respectively. When the protective door (1) is in the first position, the elastic element (2) drives the protective door (1) to fit tightly against the socket cover (42).

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