A safe conversion plug

Abstract

This utility model discloses a safety adapter, belonging to the field of adapter technology. It includes: a square housing comprising an upper housing and a lower housing that overlap each other; the lower housing has insertion holes on two, three, or four outer peripheral sides; a limiting block disposed within the lower housing, forming a sliding groove space between the limiting block and the lower housing; safety doors that can be inserted into the corresponding sliding groove space from the opening direction of the lower housing; the limiting block, safety doors, and insertion hole groups are all the same in number and distributed in a one-to-one correspondence; and a pin assembly that can be installed in the lower housing from the opening direction, the pin assembly abutting against the side of all safety doors closest to the opening of the lower housing, thereby restricting the position of the safety doors. During overall assembly, the safety doors can be directly inserted into the corresponding sliding groove space, and then the upper housing is closed after the pin assembly is installed, thus conveniently and quickly confining the safety doors within the square housing, improving assembly efficiency.

Description

A type of secure conversion plug Technical field

[0001] The utility model relates to the technical field of conversion plugs, specifically a type of secure conversion plug. Prior technology

[0002] Vertical conversion plugs allow multiple jacks to be distributed on the side, thereby reducing the footprint. In order to improve the safety of the conversion plug socket, it is generally necessary to install a safety door structure by bolting at the position of the shell corresponding to each socket, thereby ensuring the safety performance of the vertical conversion plug. Contents of the invention

[0003] The purpose of the utility model lies in providing a secure conversion plug to solve one or more technical problems existing in the prior art, at least one beneficial choice or creation condition.

[0004] Technological scheme adopted to address the above technical problems: a safety conversion plug comprising: a square shell comprising a mutually capping upper and lower shell with sets of jacks opened on two, three or four peripheral sides of the lower shell; the orientation of the body opening is embedded in the space corresponding to said chute, the number of the restriction block, the safety door and the jack set are all identical and distributed in one-to-one correspondence with each other;

[0005] The technical solution has at least the following beneficial effects: in the overall assembly, the safety door can be directly embedded in the corresponding chute space, then installed into the prong assembly, the back cover of the shell, thereby can very conveniently and quickly restricted the safety door in the square shell body, improve assembly efficiency.

[0006] As a further improvement to the above technical solution, a protruding edge is provided on one side of the safety door. The limiting block includes a first protrusion attached to the protruding edge and one side of the safety door, a second protrusion attached to the side of the safety door away from the inner wall of the lower housing, and a third protrusion attached to the other side of the safety door. By dividing the limiting block into three protrusions, each side of the safety door is restricted. While ensuring the stability of the safety door, the space occupied by the limiting block can be reduced, making the overall square housing more compact and refined.

[0007] As a further improvement to the above technical solution, the safety door includes an outer frame and a blocking block slidably disposed on the outer frame. The blocking block is provided with an inclined guide surface, and a first elastic element is connected between the blocking block and the outer frame. The elastic force of the first elastic element keeps the inclined guide surface in the corresponding position corresponding to the socket group. The safety door has a simple structure and is easy to install as a whole.

[0008] As a further improvement to the above technical solution, the upper housing has a groove that accommodates a switch button for controlling the on / off state of the pin assembly. The bottom wall of the groove has a mounting hole, and rotating shafts are mounted on both sides of the mounting hole. The switch button has a shaft hole into which the rotating shafts can be inserted. The switch button is installed in the upper housing, facilitating its assembly.

[0009] As a further improvement to the above technical solution, the switch button is mounted with a limiting plate, and the bottom wall of the groove has a limiting hole for the limiting plate to swing. During the swinging process of the switch button, the side wall of the limiting hole restricts the limiting plate, thereby limiting the position of the switch button and improving the stability and reliability of the switch button.

[0010] As a further improvement to the above technical solution, the pin assembly includes: a first main line pin, a second main line pin, and a ground pin extending from the bottom of the lower housing; a main mounting base; a first conductive plate, a second conductive plate, and a third conductive plate respectively mounted on the main mounting base; the first conductive plate, the second conductive plate, and the third conductive plate are respectively connected to the first main line pin, the second main line pin, and the ground pin, and each extends to the corresponding position of each of the socket groups.

[0011] As a further improvement to the above technical solution, the main mounting base includes a first mounting base, a second mounting base, and a third mounting base stacked sequentially. The third conductive sheet is installed between the second and third mounting bases, and the second conductive sheet is installed between the first and second mounting bases. The first conductive sheet includes a main conductive portion and several sub-conductive portions extending to the corresponding socket groups. The main conductive portion and the sub-conductive portions are assembled together. The main conductive portion is installed on the first mounting base, and the sub-conductive portions are installed on the second mounting base. The first, second, and third mounting bases support the corresponding first, second, and third conductive sheets, respectively, and also facilitate mutual assembly and connection.

[0012] As a further improvement to the above technical solution, the main mounting base is provided with a limiting protrusion for restricting the position of the conductive sheet. The limiting protrusion can restrict the position of the first conductive sheet, thereby improving the stability of the first conductive sheet.

[0013] As a further improvement to the above technical solution, the first conductive plate is connected to the first main wire pin via a wire; and / or the second conductive plate is connected to the second main wire pin via a wire. The wire saves space and facilitates connection between the two locations.

[0014] As a further improvement to the above technical solution, the main mounting base does not include the grounding pin. The third conductive piece, originally used to connect the grounding pin, is provided with a connecting section, and the square housing is provided with a notch corresponding to the connecting section. This is suitable for cases where an external grounding wire is used. Simple Explanation of the Diagram

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 is a schematic diagram of the disassembly mechanism of the square shell in an embodiment of this utility model; Figure 2 is a schematic diagram of the assembly structure of the security door in an embodiment of this utility model; Figure 3 shows the positional relationship between the pin assembly and the safety door in an embodiment of this utility model. Figure 4 is an exploded structural diagram of the main mounting base in an embodiment of this utility model; Figure 5 is a schematic diagram of the assembly of the second mounting base and the first conductive sheet in an embodiment of this utility model; Figure 6 is an exploded structural diagram of the first conductive sheet, the second conductive sheet and the third conductive sheet in an embodiment of this utility model. Implementation

[0016] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0017] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0019] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0020] Referring to Figures 1-6, the safety adapter includes a square housing 100, a limiting block 200, a safety door 300, and a pin assembly 400.

[0021] The square housing 100 includes an upper housing 110 and a lower housing 120, with the upper housing 110 covering the top opening of the lower housing 120. Each of the three outer peripheral sides of the lower housing 120 is provided with a socket assembly 121. The socket assembly 121 may include a three-hole structure, such as an American-style socket, or a two-hole structure, such as a Chinese-style socket without a ground wire, depending on actual needs. In this embodiment, the socket assembly 121 is a three-hole American-style socket.

[0022] The inner side of the lower housing 120 is provided with three limiting blocks 200 , respectively, forming a chute space between the limiting block 200 and the inner wall of the lower housing 120 , which allows the safety door 300 to be embedded, thereby limiting the front, rear, left and right sides of the safety door 300 as well as the bottom surface. The pin assembly 400 is mounted within the lower housing 120 . After installing the pin assembly 400 , the pin assembly 400 resists the top of the safety door 300 , thereby causing the position of the safety door 300 to be completely restricted, achieving a secure assembly of the safety door 300 . The upper shell body 110 cover is then closed at the opening of the lower shell body 120 to complete the overall assembly. Safety door 300 has a simple installation structure, small space occupancy and convenient assembly process, with higher assembly efficiency and lower production cost.

[0023] In other embodiments, jack sets 121 may also be provided only on both or four peripheral sides of the lower shell 120 . The number of safety doors 300 , the number of restriction blocks 200 and the number of jack groups 121 are the same and the positions of the three are distributed in one-to-one correspondence.

[0024] Wherein, the safety door 300 includes an outer frame 310 , a blocking block 320 , and a first elastic piece 340 , which slides and is provided within an outer frame 310 , the first elastic piece 340 is two coil springs with one end mounted on each side of the blocking block 320 , and the other end mounted on both sides of the inner side wall of the outer frame 310 . The elastic force of the first elastic member 340 can provide a stable elastic force to the blocking block 320 such that the blocking block 320 resists a position at one end inside the outer frame 310 , with inclined guide surfaces 330 provided on both sides of the blocking block 320 . The inclined guide face 330 on the blocking block 320 corresponds to a jack group 121 located on the same side of the lower housing 120 under the elastic force of the first elastomer, thereby causing the inclined guide face 330 to be shielded within the jack group 121 . When a plug with a plug is inserted into the jack pack 121 from outside the square housing 100 , it resists the inclined guide surface 330 such that the blocking block 320 overcomes the elastic force of the first elastic member 340 and pushes the blocking block 320 away from a position corresponding to the jack block 121 , so that the plug of the plug can enter the square housing 100 for electrical connection with the plug assembly 400 .

[0025] Specifically, the limiting block 200 includes a first bump 210 , a second bump 220 , and a third bump 230 .

[0026] One side of the outer frame 310 is provided with a convex edge 311 , with the first bump 210 and the inner side wall of the lower shell 120 at a preset distance of the same thickness as the convex edge 311 , when the safety door 300 is embedded in the chute space 311 is embedded between the first bump 210 and the medial side wall of the lower shell 120 , thereby enabling the first bump 210 to restrict one side of the safety door 300 as well as the side of the safety door 300 away from the inner side wall corresponding to the lower housing 120 .

[0027] The second bump 220 is disposed at a bottom position of the lower housing 120 , the bottom of the outer frame 310 against the top of the second bump 220 , and the second bump 220 also resists a position on one side of the outer frame 310 away from the inner side wall of the lower housing 120 , thereby allowing the second bump 220 to restrict the bottom wall of the safety door 300 as well as the safety door 300 away from one side of the corresponding inner wall 120 .

[0028] The third bump 230 is disposed at a bottom position of the lower shell body 120 , and the third bump 230 opposes a position on the other side of the outer frame 310 , i.e., the first bump and the third bump 230, respectively, oppose two opposite sides of the outer frame 310 . Thereby allowing the third bump to restrict the position on the other side of the safety door 300 . The chute space is the space formed between the first bump 210 , the second bump 220 , and the third bump 230 and the inner wall of the lower shell 120 . That is, the restriction block 200 can limit the position where the safety door 300 slides to the bottommost position, plus the resistance limit of the pin assembly 400 to the top of the safety door 300 , which ensures the installation stability of the safety door 300 . Furthermore, by restricting the various side positions of the safety door 300 by the first bump 210 , the second bump 220 , and the third bump 230 , respectively, the occupied space of the restriction block 200 can be reduced while ensuring the solid restrictions of the safety door 300 , making the square shell 100 more compact and refined overall.

[0029] A recess 111 is opened at the top of the upper housing 110 , in which three switch buttons 112 are distributed side by side. It should be stated that the number of power buttons 112 is the same as that of the jack group 121 . At the bottom wall of the recess 111 there are three mounting holes 113 mounted side by side on both opposite sides of the mounting hole 113 , which are provided with a chamfer at the top of the rotating shaft 114 , and on both sides of the switch button 112 . The switch button 112 may be embedded in a recess 111 , and the rotating shaft 114 corresponding to each side of the mounting hole 113 is inserted in the corresponding shaft hole 115 , so that the switch button 112 and the upper housing body 110 are rotated to achieve an assembly connection of the switch button 112 and the upper housing body 110 .

[0030] A limiting plate 116 is installed at the bottom of the switch button 112, and the limiting plate 116 is integrally formed with the switch button 112. Three limiting holes 117 are formed on the bottom wall of the groove 111. After the switch button 112 is installed, the limiting plates 116 on the three switch buttons 112 are respectively inserted into the corresponding limiting holes 117, and the length of the limiting hole 117 is greater than the length of the limiting plate 116. When the switch button 112 swings, causing the limiting plate 116 to swing, the limiting plate 116 is allowed to swing within the limiting hole 117. The inner wall of the limiting hole 117 can restrict the swing of the limiting plate 116 within a certain range, thereby improving the swing stability of the switch button 112.

[0031] Specifically, the pin assembly 400 includes a main mounting base 420, three pins, and three conductive plates. The main mounting base 420 includes a first mounting base 421, a second mounting base 422, and a third mounting base 423, all located inside the lower housing 120. The three pins are a first main line pin 411, a second main line pin 412, and a ground pin 413. The three conductive plates are a first conductive plate 431, a second conductive plate 432, and a third conductive plate 433.

[0032] One end of the first main line pin 411, the second main line pin 412, and the ground pin 413 all extend downwards from the bottom of the lower housing 120 for power connection. The third mounting base 423 is installed at the bottom of the upper housing 110, the second mounting base 422 is stacked on top of the third mounting base 423, and the first mounting base 421 is stacked on top of the second mounting base 422.

[0033] One end of the first conductive sheet 431 is connected to the end of the first main line pin 411 that does not extend out of the lower housing 120, and the other end extends out to three first conductive contact ends, which are respectively located at the corresponding positions of the three socket groups 121.

[0034] One end of the second conductive sheet 432 is connected to the end of the second main line pin 412 that does not extend out of the lower housing 120, and the other end extends out to three second conductive contact ends, which are respectively located at the corresponding positions of the three socket groups 121.

[0035] One end of the third conductive piece 433 is connected to the end of the ground pin 413 that does not extend out of the lower housing 120, while the other end extends out to form three third conductive contact terminals, which are respectively located at the corresponding positions of the three socket groups 121. That is, when the three pins of the external plug are inserted into one of the socket groups 121, they can all contact the first conductive contact terminal, the second conductive contact terminal, and the third conductive contact terminal, thereby achieving electrical connection.

[0036] Wherein, the third conductive piece 433 is mounted at the top position of the third mounting mount 423 , i.e., the third conductive piece 433 is located between the top of the third mounting 423 and the bottom of the second mounting 422 . The second conductive piece 432 is mounted on top of the second mount 422 , i.e., the second conductive piece 432 is located between the top of the second mount 422 and the bottom of the first mount 421 .

[0037] The first conductive sheet 431 includes a total conductive portion 440 and three subconducting portions 450 , where the three third conductive contacts are each in three subconducting portions, i.e., the three subconducting portions 450 are each extended to corresponding positions of the corresponding three jack groups 121 . The total conductive portion 440 is mounted on top of the first mount 421 , and the three subconductive portions 450 are mounted on the side of the second mount 422 , respectively, inserted from the side. thereby facilitating overall assembly.

[0038] All three subconductive portions 450 are assembled and connected to the total conductive portion 440 , respectively. Specifically, three first contact terminals useful for electrical connection with three subconducting portions 450 are formed on the total conductive portion 440 , respectively, and a second contact terminal useful for electrical connection with the total conductive portion 440 is formed on the three subconducting portions 450 , respectively.

[0039] Warp plate ears are formed at the left and right sides of the top-up portion of the guide piece being topped by the top block. The first mounting seat 421 corresponds to both sides of the guide piece are formed with slide slots, the width of the slide is slightly larger than the width of the ball ear in the slide slot of corresponding position on both sides respectively accommodate the swing plate ears of the guide piece.

[0040] The bottom of the switch button 112 is provided with a mounting cylinder, which passes through the mounting hole 113 into the upper position of the first mounting seat 421, and the mounting cylinder is mounted with a spring and a top needle (not shown in the figure), which can provide the spring to extend the top needle out of the cylindrical barrel, so that the top needle resists on the corresponding guide. In this case, one end of the guide piece contacts the second contact end so that the corresponding sub-conducting portion 450 and the total conductive portion 440 achieve connected conduction. When the switch button 112 is manually dialed to swing to a steady state position on the other side, the top needle compresses the spring and slides from one side to the other on the guide piece, prompting the guide piece to swing to the other side, thereby separating the end part of the guide piece from the second contact end, thereby disconnecting the subconducting portion 450 from the total conductive portion 440 . Realize the on-off function of the switch.

[0041] Further, a plurality of limiting bulges 430 are provided at the top of the first mounting mount 421 , which are restricted to the lateral positions of the first conductive piece 431 , respectively, thereby insuring the stability of the installation of the first conductive piece 431 by limiting the position of the first conductive piece 431 on the first mounting 421 .

[0042] Further, a wire 500 is connected between the second conductive piece 432 and the second main line pin 412 , thereby making the second conductive piece 432 electrically connected to the second main line pin 412 , the wire 500 saves occupied space and facilitates the connection between the two spatial locations, and makes the second conductor piece 432 and the second main line pin 412 easier to assemble. In other embodiments, an electrical connection may also be made between the first conductive sheet 431 and the first main line plug 411 by wire 500 .

[0043] In another embodiment, instead of being provided with a ground pin 413 , a connection segment 600 may be provided on one side of a third conductive piece 433 originally used to connect a ground pin 413 . A notch 610 is provided on a side of the lower housing 120 not provided with the jack group 121 , which can expose the connecting segment 600 to the outside of the lower housing 120 , thereby facilitating the connection of the ground wire to the third conductive piece 433 directly through the connecting segment 600 .

[0044] The embodiments of the utility model are described above in detail in conjunction with the accompanying figures, but the utility model is not limited to the above embodiments and can make various changes without deviating from the purposes of the utility model within the scope of knowledge possessed by ordinary skilled personnel in the technical field.

[0045] 100: Square shell 110: Upper shell 111: Groove 112: Switch button 113: Mounting hole 114: Shaft 115: Shaft hole 116: Limit plate 117: Limiting hole 120: Lower housing 121: Socket Set 200: Limit Block 210: First bump 220: Second bump 230: Third bump 300: Security Door 310: Outer frame 311: Convex edge 320: Block 330: Inclined guide surface 340: First elastic element 400: Pin Assembly 411: First Main Storyline Insertion 412: Second Mainline Insertion 413: Grounding pin 420: Main mounting bracket 430: Restricted protrusion 421: First mounting bracket 422: Second mounting bracket 423: Third mounting bracket 431: First conductive sheet 432: Second conductive sheet 433: Third conductive sheet 440: Total conductive portion 450: Conductive part 500: Wire 600: Connecting segment 610: Gap

Claims

1. A safety adapter, characterized in that it comprises: A square housing includes an upper housing and a lower housing that overlap each other, with insertion holes provided on two, three, or four outer peripheral sides of the lower housing; a limiting block is disposed within the lower housing, forming a sliding groove space between the limiting block and the lower housing; a safety door can be embedded into the corresponding sliding groove space from the opening direction of the lower housing, and the number of the limiting block, the safety door, and the insertion hole groups are all the same and distributed in a one-to-one correspondence; a pin assembly can be installed in the lower housing from the opening direction of the lower housing, and the pin assembly abuts against the side of all the safety doors near the opening of the lower housing, thereby restricting the position of the safety doors.

2. A safety conversion plug as described in claim 1, characterized in that: a protruding edge is provided on one side of the safety door, and the limiting block includes a first protrusion attached to the protruding edge and one side of the safety door, a second protrusion attached to the side of the safety door away from the inner wall of the lower housing, and a third protrusion attached to the other side of the safety door.

3. A safety adapter as described in claim 1, characterized in that: the safety door includes an outer frame and a blocking block slidably disposed on the outer frame, the blocking block is provided with an inclined guide surface, a first elastic member is connected between the blocking block and the outer frame, and the elastic force of the first elastic member keeps the inclined guide surface in a corresponding position corresponding to the socket group.

4. A safety adapter as described in claim 1, characterized in that: the upper housing has a groove, the groove accommodates a switch button for controlling the on / off state of the plug assembly, the bottom wall of the groove has a mounting hole, a rotating shaft is installed on both sides of the mounting hole, the switch button has a shaft hole for inserting the rotating shaft, and a limit plate is installed on the switch button.

5. A safety conversion plug as described in claim 4, characterized in that: the bottom wall of the groove is provided with a limiting hole for the limiting plate to swing.

6. A safety adapter as described in claim 1, characterized in that: the pin assembly comprises: The first main line pin, the second main line pin, and the ground pin extend from the bottom of the lower housing, respectively; main mounting base; The first conductive plate, the second conductive plate, and the third conductive plate are respectively installed on the main mounting base; the first conductive plate, the second conductive plate, and the third conductive plate are respectively connected to the first main line pin, the second main line pin, and the ground pin, and each extends to the corresponding position of each of the socket groups.

7. A safety adapter as described in claim 6, characterized in that: the main mounting base includes a first mounting base, a second mounting base, and a third mounting base stacked sequentially; the third conductive sheet is installed between the second mounting base and the third mounting base; the second conductive sheet is installed between the first mounting base and the second mounting base; the first conductive sheet includes a main conductive portion and a plurality of sub-conductive portions extending to the corresponding socket group; the main conductive portion and the sub-conductive portions are assembled together; the main conductive portion is installed in the first mounting base; and the sub-conductive portions are installed in the second mounting base.

8. A safety adapter as described in claim 7, characterized in that: the main mounting base is provided with a limiting protrusion for limiting the position of the conductive sheet.

9. A safety adapter as described in claim 6, characterized in that: the first conductive plate is connected to the first main pin via a wire; and / or the second conductive plate is connected to the second main pin via a wire.

10. A safety adapter as described in claim 6, characterized in that: the main mounting base does not include the ground pin, the third conductive piece originally used to connect the ground pin is provided with a connecting section, and the square housing is provided with a notch for corresponding to the connecting section.

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