A multi-in-one conversion plug

Abstract

The application relates to a multi-in-one conversion plug which comprises a main body part, an unlocking cover, a first movable part, a second movable part, a first limiting mechanism and a second limiting mechanism. The two types of movable parts are arranged on the opposite sides of the main body part in a folding foot type design, so that the arrangement space outside the main body part can be fully utilized and the miniaturization of the overall structure of the plug is facilitated. The unlocking cover can unlock the movable part on one side of the main body part by cooperating with a set of limiting mechanisms, the movable part on the other side of the main body part is locked by the corresponding limiting mechanism and is also shielded by the unlocking cover, so that electric shock can be effectively prevented, and the interlocking part and the non-return structure can also prevent electric shock hidden dangers caused by misoperation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of conversion plug, in particular to a multi-in-one conversion plug. BACKGROUND

[0002] At present, there are many mainstream plug / socket system specifications in the world, which causes the plug of the electrical equipment brought by people when traveling abroad cannot match the local socket. In order to break the power supply barrier between different plugs and sockets, some manufacturers have developed conversion plugs with multiple active pins and corresponding electrical products. Such conversion plugs have multiple active pins, and the required active pin needs to be released and the other active pins need to be put into the plug.

[0003] The existing active pins are usually designed in a linearly moving telescopic scheme, in which the length of the pin determines the thickness of the plug body, which is not conducive to controlling the volume of the plug in the storage form. The active pin can also be configured in a folding pin scheme that can rotate. Generally, this scheme is more conducive to controlling the volume of the plug than the telescopic scheme, but the main body of such a plug is also difficult to accommodate multiple active pins in a small size, and after the required pin is turned out, the other pins must not be moved to prevent electric shock, so the design is extremely difficult, and currently no domestic manufacturer has developed such a product. SUMMARY

[0004] The main purpose of the present application is to provide a multi-in-one conversion plug using a folding pin scheme.

[0005] To achieve the above purpose, the present application provides a multi-in-one conversion plug, which comprises a main body having a first wall and a second wall opposite in a first direction, and is characterized in that it further comprises:

[0006] An unlocking cover movable relative to the main body along a second direction orthogonal to the first direction, the unlocking cover being provided with a pushing portion protruding on the side close to the main body;

[0007] A first movable member hinged to the corresponding side of the first wall of the main body, the first movable member having a first outer pin, a first pivot and a first inner tab located in the main body; and a second movable member hinged to the corresponding side of the second wall of the main body, the second movable member having a second outer pin, a second pivot and a second inner tab located in the main body, the first pivot and the second pivot extending along a third direction orthogonal to the first direction and the second direction;

[0008] A first limiting mechanism for limiting the rotation of the first movable member, comprising a first driving member and a first driven member; and a second limiting mechanism for limiting the rotation of the second movable member, comprising a second driving member and a second driven member, the first driving member and the second driving member being at least partially located on the outside of the main body.

[0009] The multi-in-one conversion plug has a first state and a second state, in the first state, the pushing part abuts against the first transmission part, the first inner tab and the first driven part have no overlap in the projection in the first direction, and the second inner tab and the second driven part have overlap in the projection in the first direction; in the second state, the pushing part abuts against the second transmission part, the second inner tab and the second driven part have no overlap in the projection in the first direction, and the first inner tab and the first driven part have overlap in the projection in the first direction.

[0010] According to the above scheme, the two types of movable parts with outer pins are designed and arranged on the opposite sides of the main body part in a folding pin mode, which can fully utilize the layout space outside the main body part and is beneficial to reducing the size of the main body part. The unlocking cover can only unlock the corresponding movable part by cooperating with one set of limiting mechanism each time. The movable part can be rotated to the working mode in which the outer pin protrudes from the main body part and the inner tab accesses the internal circuit of the main body part. The other set of limiting mechanism keeps the corresponding movable part locked, thereby limiting its rotation and maintaining it in the storage mode. Since the movable part faces the user, maintaining it in the storage mode can prevent the inner tab from accessing the internal circuit of the main body part, thereby preventing the user from being electrocuted.

[0011] A further scheme is that the first transmission part and the second transmission part are movable along the second direction, and the first driven part and the second driven part are rotatable along the plane defined by the second direction and the third direction.

[0012] According to the above scheme, the movement mode of the two types of transmission parts is linear movement consistent with the unlocking cover, which can better cooperate with the unlocking cover and also helps to reduce the design difficulty of the related mechanism. The rotation plane of the two types of driven parts is perpendicular to the rotation plane of the two types of movable parts, which can prevent or unlock the rotation of the movable parts through a small movement amplitude, and also helps to reduce the first direction size of the main body part.

[0013] A further scheme is that the main body part further includes two third walls opposite in the third direction, the third walls are provided with guide through-slots in the second direction, and the first transmission part and the second transmission part have trigger ends cooperating with the pushing part, and the trigger ends pass out of the main body part through the guide through-slots.

[0014] According to the above scheme, the trigger ends of the two types of transmission parts are arranged on the third walls, which can fully utilize the layout space outside the main body part and will not interfere with the two types of movable parts. The above arrangement idea is also beneficial to the miniaturization of the main body part.

[0015] A further scheme is that the multi-in-one conversion plug further includes a retaining structure for inhibiting the unlocking cover from moving relative to the main body part along the first direction and the second direction in the first state and the second state.

[0016] From the above scheme, in order to maintain the unlocking of the unlocking cover for the specific movable part, prevent user misoperation and accidental movement of the unlocking cover from causing unlocking failure, a retaining structure is needed to limit the movement of the unlocking cover relative to the main body in the first state and the second state.

[0017] A further scheme is that two first convex ribs extending in the second direction are arranged on each third wall, the unlocking cover includes two clamping wall parts opposite in the third direction, the clamping wall parts are provided with a second convex rib and a third convex rib vertically connected on the side facing the third wall, the second convex rib extends in the second direction, in the first state and the second state, the projections of the first convex rib and the second convex rib in the first direction overlap, and the projections of the third convex rib and the first convex rib in the second direction overlap, and the retaining structure includes the clamping wall parts, the first convex rib, the second convex rib and the third convex rib.

[0018] From the above scheme, the cooperation between the second convex rib and the first convex rib can limit the relative movement of the unlocking cover and the main body in the first direction, and the cooperation between the third convex rib and the first convex rib can limit the relative movement of the unlocking cover and the main body in the second direction.

[0019] A further scheme is that the unlocking cover further includes a shutter part connecting the two clamping wall parts, the shutter part shields the second wall in the first state, and the shutter part shields the first wall in the second state.

[0020] From the above scheme, the shutter part can prevent the second movable part from rotating while shielding the second wall, and the shutter part can prevent the first movable part from rotating while shielding the first wall, and the shutter part can also cooperate with the second convex rib to limit the movement of the unlocking cover relative to the main body in the first direction.

[0021] A further scheme is that the all-in-one adapter plug further includes a check structure that prevents the first driven part from rotating in the first state or prevents the second driven part from rotating in the second state, when the first movable part is rotated to the first outer pin perpendicular to the first wall in the first state, the check structure overlaps the projection of the first driven part in the third direction; or when the second movable part is rotated to the second outer pin perpendicular to the second wall in the second state, the check structure overlaps the projection of the second driven part in the third direction.

[0022] From the above scheme, the introduction of the check structure can prevent the locking mechanism from accidentally restoring the locking of the movable part due to misoperation, ensure that the movable part in the working mode can rotate and smoothly return to the storage mode, and prevent the corresponding driven part from interfering with the inner tangent piece during the above rotation process.

[0023] Further, the check structure is a check part protruding from the first movable part or the second movable part, or the check structure is a check part movably arranged on the main part and driven by the first movable part or the second movable part.

[0024] According to the above solution, the check structure can be arranged in various forms, the check part protruding from the movable part is a relatively simple check structure arrangement form, which is beneficial to reducing the number of components of the plug, and the movable check part as the check structure can be well adapted to the movable part and the corresponding driven part.

[0025] Further, the all-in-one conversion plug further comprises an interlocking part, the interlocking part is used for inhibiting the second transmission part from moving in the second direction in the first state and inhibiting the first transmission part from moving in the second direction in the second state.

[0026] According to the above solution, the introduction of the interlocking part can prevent the user from unlocking the cover and then driving the transmission part corresponding to the movable part in the storage mode to unlock the movable part under the premise that the specific movable part is in the working mode, thereby eliminating the electric shock hazard.

[0027] Further, the interlocking part is a sliding plate matched with the first transmission part and the second transmission part, the sliding plate is located between the first transmission part and the second transmission part on the same side in the third direction and can move in the first direction, the sliding plate comprises an engaging segment and a body segment distributed in the second direction, the engaging segment comprises a straight edge parallel to the first direction and two inclined edges, the distance between the first transmission part and the second transmission part in the first direction is D, the length of the straight edge is L1, the length of the body segment in the first direction is L2, and L1 < D < L2.

[0028] According to the above solution, the sliding plate with a specific shape and movable in the first direction is a relatively simple interlocking part implementation form, which can effectively prevent the first movable part and the second movable part from being unlocked at the same time, thereby eliminating the electric shock hazard.

[0029] The two types of movable parts of the all-in-one conversion plug are configured on opposite sides of the main part in a folding foot design, which can fully utilize the arrangement space outside the main part and is beneficial to the miniaturization of the overall structure of the plug. The unlocking cover can unlock the movable part on one side of the main part by cooperating with a set of limiting mechanisms, the movable part on the other side of the main part is locked by the corresponding limiting mechanism and is also shielded by the unlocking cover, which can effectively prevent electric shock, and the interlocking part and the check structure can also prevent electric shock caused by misoperation. BRIEF DESCRIPTION OF DRAWINGS

[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0032] Figure 1 This is a structural diagram of the multi-in-one adapter plug embodiment of the present invention in its first state and with the first movable member in its working state.

[0033] Figure 2 This is an exploded view of an embodiment of the multi-in-one adapter plug of the present invention.

[0034] Figure 3 This is a structural diagram of the embodiment of the multi-in-one adapter of the present invention in its second state, with a second movable member in a working state.

[0035] Figure 4 This is a structural diagram of the main body of the multi-in-one adapter of the present invention in the second state.

[0036] Figure 5 This is a structural diagram of the first movable part of the multi-in-one adapter plug embodiment of the present invention when it is locked.

[0037] Figure 6 yes Figure 5 Enlarged structural diagram at point A in the middle.

[0038] Figure 7 This is a structural diagram of the first movable part of the multi-in-one adapter plug embodiment of the present invention when it is unlocked.

[0039] Figure 8 yes Figure 7 Enlarged structural diagram at point B in the middle.

[0040] Figure 9 It corresponds to Figure 8 The structural diagram of the first active component in its working state.

[0041] Figure 10 This is a structural diagram of the first movable component of an embodiment of the multi-in-one adapter plug of the present invention.

[0042] Figure 11 This is a structural diagram of the second movable component of the multi-in-one adapter of the present invention when it is locked.

[0043] Figure 12is the structural diagram of the second movable piece of the multi-in-one conversion plug embodiment of the present application when being unlocked.

[0044] Figure 13 is the cooperation structural diagram of the second movable piece of the multi-in-one conversion plug embodiment of the present application when being locked, the second limiting mechanism and the check piece.

[0045] Figure 14 is the cooperation structural diagram of the second movable piece of the multi-in-one conversion plug embodiment of the present application when being unlocked, the second limiting mechanism and the check piece.

[0046] Figure 15 is the structural diagram of the second movable piece of the multi-in-one conversion plug embodiment of the present application.

[0047] Figure 16 is the structural diagram of the sliding plate of the multi-in-one conversion plug embodiment of the present application.

[0048] Figure 17 is the installation structural diagram of the sliding plate of the multi-in-one conversion plug embodiment of the present application.

[0049] Reference signs: 100, main body part; 110, shell; 110a, first wall; 110b, second wall; 110c, third wall; 110d, fourth wall; 111, accommodating groove; 112, guide through slot; 113, first convex rib; 114, guide rail part; 115, guide wire; 120, support part; 130, first movable piece; 131, first outer pin; 132, first rotation shaft; 133, first inner tab; 134, first check part; 140, second movable piece; 140a, upper movable piece; 140b, lower movable piece; 141, second outer pin; 142, second rotation shaft; 143, second inner tab; 144, second check part; 145, outer pressing rod; 150, first limiting mechanism; 151, first transmission piece; 151a, first trigger end; 152, first driven piece; 153, first guide rod; 160, second limiting mechanism; 161, second transmission piece; 161a, second trigger end; 162, second driven piece; 162a, first arm part; 162b, second arm part; 163, second guide rod; 170, check piece; 171, first rotation arm; 172, second rotation arm; 180, sliding plate; 181, joint section; 181a, straight edge; 181b, inclined edge; 182, body section; 200, unlocking cover; 210, pushing part; 220, clamping wall part; 221, second convex rib; 222, third convex rib; 230, shutter part; 240, top plate part. DETAILED DESCRIPTION

[0050] The preferred embodiments of the present application will be described in detail below with reference to the drawings. In the following description, identical components are denoted by identical reference numerals, and overlapping explanations will be omitted. In addition, the drawings are schematic diagrams, and the ratio of the dimensions of the components to each other or the shape of the components, etc. can differ from reality. Note that all directional references, such as up, down, left, right, front, back, top, bottom, over, under, upper, lower, clockwise and counterclockwise, used herein - including those used in the description of the preferred embodiments - are only used for clarity in explaining the present application and do not connote or require that the present application or any component thereof operate in only that orientation. Note that the directionality indicated by the directional references can change if the particular orientation of the preferred embodiments is changed.

[0051] It should also be noted that when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can also be present. In contrast, when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present.

[0052] The movable pins on the existing all-in-one plug mostly adopt a linearly moving telescopic scheme, which is not conducive to controlling the volume of the plug in the storage form. The movable pins can also be configured in a folding pin scheme that can rotate. Generally, this scheme is more conducive to controlling the volume of the plug than the telescopic scheme, but it is still difficult to accommodate multiple movable pins in the main body part of the plug in a small size, and after the required pins are turned out, it is also necessary to ensure that the other pins cannot move to prevent electric shock, so the design difficulty is extremely high.

[0053] Referring to Figures 1 to 17 The all-in-one conversion plug provided by the embodiment includes a main body part 100, which is substantially in the shape of a rectangular parallelepiped. An XYZ coordinate system is established based on the main body part 100, wherein the Z-axis direction is parallel to the height direction of the main body part 100, the Z-axis direction can be defined as parallel to the plumb direction, and specifically, the +Z-axis direction can be defined as the opposite direction of the plumb direction. The X-axis direction and the Y-axis direction are both orthogonal to the Z-axis direction, and specifically, they can be two directions that extend horizontally and orthogonally. Here, the length direction and the width direction of the main body part 100 are defined as the X-axis direction and the Y-axis direction. In addition, the Y-axis direction is defined as the first direction, the Z-axis direction is defined as the second direction, and the X-axis direction is defined as the third direction.

[0054] The main body 100 includes a housing 110 and a support portion 120 disposed within the housing 110. The main body 100 has a first wall 110a and a second wall 110b opposing each other in the Y-axis direction (first direction). The main body 100 also includes two third walls 110c opposing each other in the X-axis direction (third direction) and a fourth wall 110d located on the +Z-axis side. The first wall 110a, the second wall 110b, the third wall 110c, and the fourth wall 110d can all be considered as part of the housing 110. A wire 115 is connected to the main body 100 on the -Z-axis side, and the wire 115 connects to the internal wiring of the main body 100 (not shown in the figure).

[0055] Furthermore, the multi-in-one adapter provided in this embodiment also includes an unlocking cover 200, a first movable member 130, a second movable member 140, a first limiting mechanism 150, and a second limiting mechanism 160. The unlocking cover 200 is movable relative to the main body 100 along the Z-axis direction (second direction), and the unlocking cover 200 has a protruding pushing part 210 on the side near the main body 100.

[0056] The first movable member 130 is hinged to the +Y axis direction side of the main body 100, that is, the side corresponding to the first wall 110a. The first movable member 130 has a first external pin 131, a first pivot 132, and a first internal tab 133 located within the main body 100. The second movable member 140 is hinged to the -Y axis direction side of the main body 100, that is, the side corresponding to the second wall 110b. The second movable member 140 has a second external pin 141, a second pivot 142, and a second internal tab 143 located within the main body 100. Both the first pivot 132 and the second pivot 142 extend along the X-axis direction.

[0057] The first limiting mechanism 150 is used to limit the rotation of the first movable member 130, and includes a first transmission member 151 and a first driven member 152; the second limiting mechanism 160 is used to limit the rotation of the second movable member 140, and includes a second transmission member 161 and a second driven member 162, wherein the first transmission member 151 and the second transmission member 161 are both located at least partially outside the main body 100.

[0058] The multi-in-one adapter has a first state and a second state. In the first state, the pushing part 210 abuts against the first transmission member 151, the projections of the first inner contact 133 and the first driven member 152 in the Y-axis direction do not coincide, and the projections of the second inner contact 143 and the second driven member 162 in the Y-axis direction do coincide. In the second state, the pushing part 210 abuts against the second transmission member 161, the projections of the second inner contact 143 and the second driven member 162 in the Y-axis direction do not coincide, and the projections of the first inner contact 133 and the first driven member 152 in the Y-axis direction do coincide.

[0059] The first movable member 130 and the second movable member 140, which contain pins, are designed with folded feet and are positioned on opposite sides of the main body 100 in the Y-axis direction. This design fully utilizes the space on the outer side of the main body 100 and facilitates a reduction in the size of the main body 100 and a miniaturization of the overall plug structure. The unlocking cover 200 can only unlock its corresponding first movable member 130 or second movable member 140 at a time by cooperating with either the first limiting mechanism 150 or the second limiting mechanism 160. For example, after unlocking the first movable member 130, it can be rotated to a working state where the first external pin 131 protrudes from the main body 100 and the first internal contact 133 is connected to the internal wiring of the main body 100. The second limiting mechanism 160 keeps the second movable member 140 locked. The rotation of the second movable member 140 is restricted by the second limiting mechanism 160 and thus maintained in a retracted state. Specifically, the second driven member 162 is on the rotational trajectory of the second inner contact 143. After the second movable member 140 rotates a certain angle, the second inner contact 143 interferes with the second driven member 162, thus restricting further rotation. Since the first movable member 130 faces the socket and the second movable member 140 faces the user, keeping the second movable member 140 in a retracted state prevents the second inner contact 143 from connecting to the internal wiring of the main body 100, thereby preventing the user from being electrocuted by contacting the second movable member 140. Conversely, if the second movable member 140 is unlocked, the first movable member 130 will also be locked by the first limiting mechanism 150 and kept in a retracted state, thereby preventing the user from being electrocuted by contacting the first movable member 130.

[0060] This embodiment includes one first movable member 130 and two second movable members 140. For ease of distinction, the two second movable members 140 are referred to as upper movable member 140a and lower movable member 140b, respectively. The first movable member 130 corresponds to the European standard, the upper movable member 140a corresponds to the British standard, and the lower movable member 140b corresponds to the American standard (same as the Chinese and Japanese standards). The first wall 110a and the second wall 110b are provided with receiving grooves 111 for accommodating the first movable member 130, the upper movable member 140a, and the lower movable member 140b, respectively. In the stored form, the first movable member 130, the upper movable member 140a, and the lower movable member 140b are located in their respective receiving grooves 111 and do not protrude from the main body 100.

[0061] In this embodiment, the first transmission member 151 and the second transmission member 161 can move along the Z-axis direction, and the first driven member 152 and the second driven member 162 can rotate along the XZ plane.

[0062] Theoretically, the first limiting mechanism 150 and the second limiting mechanism 160 can be implemented in various ways, specifically through structures such as linkages and gear transmissions. In this embodiment, the first transmission member 151 and the second transmission member 161 move linearly in accordance with the unlocking cover 200, thus enabling better cooperation with the unlocking cover 200 and reducing the design difficulty of the first limiting mechanism 150 and the second limiting mechanism 160. Since the rotation planes (XZ planes) of the first driven member 152 and the second driven member 162 are perpendicular to the rotation planes (YZ planes) of the first movable member 130 and the second movable member 140, respectively, they can prevent or unlock the rotation of the first movable member 130 or the second movable member 140 with a smaller range of motion, and also help reduce the Y-axis dimension of the main body 100.

[0063] In this embodiment, the first limiting mechanism 150 further includes a first guide rod 153 disposed within the housing 110, and the second limiting mechanism 160 further includes a second guide rod 163 disposed within the housing 110. Both the first guide rod 153 and the second guide rod 163 extend along the Z-axis direction and are connected to the support portion 120 at both ends in the Z-axis direction. One end of the first transmission member 151 and the second transmission member 161 located within the main body portion 100 is provided with a through hole along the Z-axis direction and is respectively sleeved onto the corresponding first guide rod 153 and second guide rod 163. Compression springs (not shown in the figure) are also sleeved on the first guide rod 153 and the second guide rod 163 to reset the first transmission member 151 and the second transmission member 161. The first follower 152 and the second follower 162 are both hinged to the support portion 120 and rotated back by a torsion spring that abuts against the outer shell 110. The first follower 152 and the second follower 162 have roughly the same structure, both having two rotating arms. One rotating arm cooperates with the first transmission member 151 or the second transmission member 161, and the other rotating arm can act on the first movable member 130 or the second movable member 140. The second follower 162 has a significantly different shape from the first follower 152 because it needs to cooperate with two second movable members 140. In most cases, there is no contact between the first transmission member 151 and the first driven member 152, or between the second transmission member 161 and the second driven member 162. Only when the first transmission member 151 and the second transmission member 161 are pushed a certain distance along the -Z axis by the corresponding pushing part 210 can they interact with the first driven member 152 or the second driven member 162 and rotate along the XZ plane until a rotating arm does not overlap with the projection of the first inner plate 133 or the second inner plate 143 in the Y axis direction.

[0064] This embodiment has two sets of first limiting mechanisms 150 and two sets of second limiting mechanisms 160. The former is set closer to the first wall 110a in the Y-axis direction, and the latter is set closer to the second wall 110b in the Y-axis direction. The unlocking cover 200 has only two pushing parts 210. Therefore, when the unlocking cover 200 is placed on the main body 100, it can only act on the two sets of first limiting mechanisms 150 or the two sets of second limiting mechanisms 160 at the same time.

[0065] A guide groove 112 is provided on the third wall 110c along the Z-axis direction. The first transmission member 151 has a first trigger end 151a that cooperates with the pushing part 210. The second transmission member 161 has a second trigger end 161a that cooperates with the pushing part 210. The first trigger end 151a and the second trigger end 161a pass through the corresponding guide groove 112 and exit the main body 100.

[0066] Setting the first trigger end 151a and the second trigger end 161a to the third wall 110c can make full use of the arrangement space outside the main body 100 and will not interfere with the first movable member 130 and the second movable member 140. The above arrangement idea is also conducive to the miniaturization of the main body 100.

[0067] The multi-in-one adapter also includes a retaining structure that prevents the unlocking cover 200 from moving relative to the main body in the Y-axis and Z-axis directions in the first and second states. Two first ribs 113 extending in the Z-axis direction are spaced apart on each third wall 110c. The unlocking cover 200 includes two opposing clamping wall portions 220 in the X-axis direction. Each clamping wall portion 220 has a vertically connected second rib 221 and a third rib 222 on the side facing the third wall 110c. The second rib 221 extends in the Z-axis direction. In the first and second states, the projections of the first rib 113 and the second rib 221 in the Y-axis direction coincide, and the projection of the third rib 222 and the first rib 113 in the Z-axis direction coincide. The retaining structure includes the clamping wall portion 220, the first rib 113, the second rib 221, and the third rib 222.

[0068] To maintain the unlocking of the unlocking cover 200 for the first movable member 130 or the second movable member 140, and to prevent unlocking failure caused by user misoperation or accidental movement of the unlocking cover 200, a retaining structure is needed to limit the movement of the unlocking cover 200 relative to the main body 100 in the first and second states. The cooperation between the second protruding rib 221 and the first protruding rib 113 restricts relative movement between the unlocking cover 200 and the main body 100 in the Y-axis direction, and the cooperation between the third protruding rib 222 and the first protruding rib 113 restricts relative movement between the unlocking cover 200 and the main body 100 in the Z-axis direction. Furthermore, the two clamping wall portions 220 cover the two third walls 110c in both the first and second states, preventing the user from forcibly unlocking the retracted movable member by directly actuating the relevant transmission components.

[0069] The unlocking cover 200 also includes a cover portion 230 and a top plate portion 240 that connect the two clamping wall portions 220. The cover portion 230 covers the second wall 110b in the first state and covers the first wall 110a in the second state. The top plate portion 240 covers the fourth wall 110d in both the first and second states.

[0070] The cover portion 230, while concealing the second wall 110b, can prevent the second movable member 140 from rotating. The cover portion 230, while concealing the first wall 110a, can also prevent the first movable member 130 from rotating. The cover portion 230, in conjunction with the second protruding rib 221, restricts the movement of the unlocking cover 200 relative to the main body 100 in the Y-axis direction. The top plate portion 240, in conjunction with the third protruding rib 222, restricts the movement of the unlocking cover 200 relative to the main body 100 in the Z-axis direction. The top plate portion 240, the cover portion 230, and the two clamping wall portions 220 together constitute the main body of the unlocking cover 200, giving the unlocking cover 200 high structural strength.

[0071] The multi-in-one adapter also includes a check structure that prevents the first driven member 152 from rotating in a first state or prevents the second driven member 162 from rotating in a second state. In the first state, when the first movable member 130 rotates to the position where the first external pin 131 is perpendicular to the first wall 110a, the check structure coincides with the projection of the first driven member 152 in the X-axis direction; or in the second state, when the second movable member 140 rotates to the position where the second external pin 141 is perpendicular to the second wall 110b, the check structure coincides with the projection of the second driven member 162 in the X-axis direction. In this embodiment, the check structure refers to a first check portion 134 protruding from the first movable member 130, a second check portion 144 protruding from the lower movable member 140b, and a check member 170 movably mounted on the support portion 120 and driven by the upper movable member 140a.

[0072] The introduction of a check valve structure can prevent the first moving part 130 or the second moving part 140 from being accidentally locked due to misoperation by the first limiting mechanism 150 or the second limiting mechanism 160. This ensures that the first moving part 130 or the second moving part 140 in the working state can rotate and smoothly return to the storage state, and prevents interference between the first driven part 152 and the first inner plate 133 or the second driven part 162 and the second inner plate 143 during the rotation process.

[0073] The first check valve 134 consists of two protruding structures extending along the Y-axis in the working state of the first movable member 130. The two first check valves 134 are located outside the two first inner tabs 133 in the X-axis direction. In some unexpected situations, such as when the unlocking cover 200 is removed from the main body 100, the first driven member 152 rotates and abuts against the first check valve 134, thus preventing the first driven member 152 from rotating in the initial stage of the process of the first movable member 130 changing from the working state to the storage state. Subsequently, the first driven member 152 disengages from the first check valve 134 and continues to rotate. At this time, the first inner tabs 133 are no longer on the movement trajectory of the first driven member 152, and therefore will not interfere with the first driven member 152. The first check valve 134 protruding from the first movable member 130 is a relatively simple check valve structure, which helps to reduce the number of components in the plug. The second check valve 144 consists of two columnar protrusions located at both ends of the lower movable member 140b in the X-axis direction. These columnar protrusions extend along the X-axis direction, and their function and the way they cooperate with the second driven member 162 are similar to those of the first check valve 134, so they will not be described in detail here.

[0074] This embodiment includes two stop members 170 located on both sides of the upper movable member 140a in the X-axis direction. The stop members 170 are hinged to the support portion 120 and can rotate along the YZ plane. The stop members 170 have a first rotating arm 171 that cooperates with the upper movable member 140a and a second rotating arm 172 that cooperates with the second driven member 162. The first rotating arm 171 is reset by means of a compression spring that abuts against the support portion 120 and can elastically deform in the Y-axis direction. In this embodiment, the second driven member 162 has a first arm portion 162a that cooperates with the second transmission member 161 and a second arm portion 162b that cooperates with the second rotating arm 172. The upper movable member 140a also includes an external pressure rod 145 extending in the X-axis direction. During the process of the upper movable member 140a changing from a retracted state to a working state, the external pressure rod 145 pushes the first rotating arm 171 to rotate the second rotating arm 172 until its projection in the X-axis direction coincides with that of the end of the second arm portion 162b. When the unlocking cover 200 is removed from the main body 100, the second follower 162 rotates to abut against the X-axis side of the second arm 162b. Therefore, the second arm 172 can prevent the second follower 162 from rotating in the initial stage of the process of the second movable member 140 changing from the working state to the storage state. Subsequently, the second follower 162 disengages from the second arm 172 and continues to rotate. At this time, the second inner tab 143 is no longer on the movement trajectory of the second follower 162, so it will not interfere with the second follower 162.

[0075] The three second external pins 141 of the upper movable member 140a constitute a relatively complex linkage transmission mechanism. The second driven member 162 is shaped like a sickle and has a relatively special shape. Therefore, setting the check structure as an independent check member 170 can better adapt to the second movable member 140 and the second driven member 162.

[0076] See Figure 4 , 6 11, 12, 16, 17. The multi-in-one adapter also includes an interlocking component, which is used to inhibit the movement of the second transmission member 161 along the Z-axis in a first state and to inhibit the movement of the first transmission member 151 along the Z-axis in a second state. In this embodiment, the interlocking component is a sliding plate 180 that cooperates with the first transmission member 151 and the second transmission member 161. The sliding plate 180 is located between the first transmission member 151 and the second transmission member 161 on the same side in the X-axis direction and can move along the Y-axis direction. The sliding plate 180 includes a connecting section 181 and a body section 182 distributed along the Z-axis direction. Figure 16(The boundary line between the joint section 181 and the body section 182 is indicated by a dashed line). The joint section 181 includes a straight edge 181a parallel to the Y-axis direction and two inclined edges 181b. The distance between the first transmission member 151 and the second transmission member 161 in the Y-axis direction is D. The length of the straight edge 181a is L1. The dimension of the body section 182 in the Y-axis direction is L2. Then L1 < D < L2.

[0077] Introducing an interlocking mechanism prevents the user from unlocking the second movable member 140 by removing the unlocking cover 200 and then moving the second transmission member 161, thus preventing the second inner contact piece 143 from connecting to the internal wiring of the main body 100 and eliminating the associated risk of electric shock, while the first movable member 130 is in the working state. Furthermore, while the second movable member 140 is in the working state, it also restricts the user from forcibly unlocking the first transmission member 151 through a similar operation. A sliding plate 180 with a specific shape and movable along the Y-axis is a relatively simple implementation of the interlocking mechanism, effectively preventing the first movable member 130 and the second movable member 140, which are positioned opposite each other in the Y-axis direction, from being unlocked simultaneously, thereby eliminating the associated risk of electric shock.

[0078] See Figure 17 A guide rail portion 114 is provided on the inner side of the third wall 110c along the Y-axis direction. The guide rail portion 114 is located on the -Z-axis side of the third wall 110c. The -Z side of the body segment 182 is embedded in the guide rail portion 114 and can move along the Y-axis direction. See also Figure 12 During the process of unlocking the second movable member 140, the second transmission member 161 located on the +X axis side moves along the -Z axis direction to the end of the guide groove 112 and interacts successively with the inclined edge 181b of the sliding plate 180 on the -Y axis side and the edge of the body section 182 on the -Y axis side, thereby pushing the sliding plate 180 towards the +Y axis direction. This causes the projection of the first transmission member 151 located on the +X axis side and the inclined edge 181b of the sliding plate 180 on the +Y axis side in the Z axis direction to coincide, thereby suppressing the movement of the first transmission member 151 along the -Z axis direction. Therefore, the first movable member 130 cannot be unlocked even after the unlocking cover 200 is removed.

[0079] Thanks to the anti-return structure and interlocking components, the multi-in-one adapter can still be used normally and safely by turning the first transmission component 151 or the second transmission component 161 even after the unlocking cover 200 is removed or lost.

[0080] In the above embodiments, the descriptions of each embodiment have their own emphasis. Parts not described in detail in a particular embodiment can be referred to in the relevant descriptions of other embodiments. The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0081] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

[0082] While the present invention has been specifically described above in conjunction with the accompanying drawings and embodiments, it is to be understood that the above description does not limit the present invention in any way. Those skilled in the art can make modifications and variations to the present invention as needed without departing from the essential spirit and scope of the invention, and all such modifications and variations fall within the scope of the present invention.

Claims

1. A multi-conversion plug comprising a main body portion having a first wall and a second wall opposed in a first direction, characterized in that, Also comprising: an unlocking cover, movable relative to the main body along a second direction orthogonal to the first direction, the unlocking cover being provided with a pushing portion on a side close to the main body; a first movable member hinged to a corresponding side of the first wall of the main body, the first movable member having a first outer prong, a first pivot and a first inner tab inside the main body; a second movable member hinged to a corresponding side of the second wall of the main body, the second movable member having a second outer prong, a second pivot and a second inner tab inside the main body, the first pivot and the second pivot extending along a third direction orthogonal to the first direction and the second direction; a first limiting mechanism for limiting rotation of the first movable member, comprising a first driving member and a first driven member; a second limiting mechanism for limiting rotation of the second movable member, comprising a second driving member and a second driven member, the first driving member and the second driving member being at least partially outside the main body; the multi-in-one adapter having a first state and a second state, in the first state, the pushing portion abuts against the first driving member, the first inner tab has no overlap with a projection of the first driven member in the first direction, and the second inner tab has overlap with a projection of the second driven member in the first direction; in the second state, the pushing portion abuts against the second driving member, the second inner tab has no overlap with a projection of the second driven member in the first direction, and the first inner tab has overlap with a projection of the first driven member in the first direction.

2. The multi-in-one adapter of claim 1, wherein: the first driving member and the second driving member are movable along the second direction, and the first driven member and the second driven member are rotatable along a plane defined by the second direction and the third direction.

3. The multi-in-one adapter of claim 2, wherein: the main body further comprises two third walls opposite in the third direction, the third walls are provided with guide grooves along the second direction, the first driving member and the second driving member have trigger ends cooperating with the pushing portion, and the trigger ends pass through the main body via the guide grooves.

4. The multi-in-one adapter of claim 3, further comprising a retaining structure for inhibiting the unlocking cover from moving relative to the main body along the first direction and the second direction in the first state and the second state.

5. The multi-in-one adapter of claim 4, wherein: each of the third walls is provided with two first ribs extending along the second direction at intervals, the unlocking cover comprises two clamping wall portions opposite in the third direction, the clamping wall portions are provided with a second rib and a third rib vertically connected on a side facing the third wall, the second rib extends along the second direction, in the first state and the second state, a projection of the first rib in the first direction overlaps with a projection of the second rib in the first direction, and a projection of the third rib in the second direction overlaps with a projection of the first rib in the second direction, and the retaining structure comprises the clamping wall portions, the first ribs, the second ribs and the third ribs. ​ 6. The multi-conversion plug of claim 5, wherein: the unlocking cover further comprises a shutter part connecting the two clamping wall parts, the shutter part shielding the second wall in the first state, and shielding the first wall in the second state.

7. The multi-conversion plug of any one of claims 1-5, wherein: a non-return structure is further included to prevent the first follower from rotating in the first state or to prevent the second follower from rotating in the second state, the non-return structure coinciding with the projection of the first follower in the third direction when the first movable part rotates to the first outer pin being perpendicular to the first wall in the first state, or the non-return structure coinciding with the projection of the second follower in the third direction when the second movable part rotates to the second outer pin being perpendicular to the second wall in the second state.

8. The multi-conversion plug of claim 7, wherein: the non-return structure is a non-return part protruding on the first movable part or the second movable part, or the non-return structure is a non-return member movably arranged on the main part and driven by the first movable part or the second movable part.

9. The multi-conversion plug of any one of claims 1-5, wherein: an interlocking member is further included to inhibit the second transmission member from moving in the second direction in the first state and to inhibit the first transmission member from moving in the second direction in the second state.

10. The multi-conversion plug of claim 9, wherein: the interlocking member is a sliding plate cooperating with the first transmission member and the second transmission member, the sliding plate being located between the first transmission member and the second transmission member on the same side in the third direction and being movable in the first direction, the sliding plate comprising a body segment and an engaging segment distributed in the second direction, the engaging segment comprising two inclined edges and a straight edge parallel to the first direction, the distance between the first transmission member and the second transmission member in the first direction being D, the length of the straight edge being L1, and the length of the body segment in the first direction being L2, and L1 < D < L2.

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