Simple limiting conversion socket

Abstract

The invention discloses a simple limiting conversion socket. Comprising a shell, a circuit board located in the shell, an inner frame, at least two power connection plugs and conducting strips corresponding to the power connection plugs, a sliding groove is formed in the side, facing the pushing head, of the inner frame, and an interference plate is placed in the sliding groove and can move relative to the interior of the sliding groove. According to the invention, the interference plates are arranged on the same side, and after the power connection plugs are pushed each time and the interference plates are pushed, on one hand, the interference plates are staggered to allow the connecting rods of the pushed power connection plugs to pass through, and on the other hand, the connecting rods of the other power connection plugs are blocked, so that only one plate body is moved, and the power connection plugs can be conveniently connected. Therefore, the problem that the power connection plug is pushed out at the same time can be easily avoided, the use safety is ensured, and the occupation of the internal space can be effectively controlled compared with the arrangement of other limiting structures.

Description

Technical Field

[0001] The invention relates to the technical field of conversion sockets, in particular to a conversion socket with simple position limiting. Background Art

[0002] Converting sockets - literally means converting a certain plug into another plug. More generally, it means converting different power plugs from different countries or a certain country into power plugs from another country or multiple countries, so that power plugs from multiple countries or a certain country can be plugged into sockets in another country. This allows plugs from different countries to be interoperable in different countries around the world, solving the problem of electrical appliances from different countries being able to be used in other countries.

[0003] At present, the existing conversion sockets are designed in a structure that a socket that can accommodate plugs of various specifications is set on one end surface, and the socket is embedded with a corresponding socket sleeve, and plugs of various specifications are set on the other end. When idle, the plugs can be retracted inside, and a circuit board is generally set inside. Among them, because the conversion socket is a product that can be carried with you during travel, it is generally designed to be more compact. However, in order to prevent other plugs from extending after a single plug is extended (because if they are extended at the same time, there will be a risk of short circuit or affect normal use due to the contact between the end pins of the plugs), some limit structures for limiting the extension of the plugs will be set inside. A common limiting structure is to set up a spring and a corresponding pin and lock for each plug component, so that when a single plug is pushed out or retracted, a lock will be formed, thereby relying on this structure to prevent the plug from automatically withdrawing. However, this setting only satisfies the automatic pushing of the plug. However, in case of misoperation, other plugs can also be pushed out simultaneously. There is still a risk that a single plug cannot be extended absolutely, and each group of limiting structures will greatly increase the volume of the internal space, making the existing conversion socket to be designed larger. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a conversion socket with a simple limit.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A simple limited conversion socket comprises a shell and a circuit board located inside the shell, an inner frame, at least two power plugs and conductive sheets corresponding to the power plugs, an avoidance hole is arranged at a position of the one end face of the shell and directly connected to the power plug, a plug hole is arranged at the other end face of the shell, a conductive socket is arranged in the shell relative to the plug hole, the power plug can be slidably installed on the inner frame through a sliding cavity, each of the power plugs is installed with a push seat with insulating properties, each of the push seats is provided with a push head arranged outside the shell through a connecting rod, the conductive sheet is installed on the inner frame, and the insertion port of each conductive sheet corresponds to the push track of the corresponding power plug, After the plug of the plug is pushed out of the avoidance hole, the conductive parts of the power plug respectively come into contact with the conductive sheets, and the conductive sheets and the conductive socket are electrically connected to the circuit board. The pushing heads on each of the pushing seats are located on the same side of the inner frame, and the inner frame is provided with a sliding groove on the side facing the pushing head. An interference plate is placed in the sliding groove, and the interference plate can move relative to the sliding groove. After sliding, there is only a gap between the interference plates or between the interference plates and the upper and lower ports of the sliding groove for pushing in a single connecting rod. The end faces of one end of the interference plates are provided with guiding inclined surfaces, so that when the connecting rod touches the guiding inclined surfaces of the interference plates, the interference plate can be forced to move in the sliding groove.

[0007] Preferably, the inner frame is detachably installed in the shell.

[0008] Preferably, the sliding groove includes a first notch provided at the front end of the inner frame and a second notch provided at the rear end of the inner frame, and both ends of the interference plate are respectively placed in the first notch and the second notch.

[0009] Preferably, a chamfered surface is provided on a side of the connecting rod close to the guiding inclined surface.

[0010] Preferably, the pushing seat is embedded in one end of the power plug so that the pushing seat can be laterally moved relative to the power plug. At least one spring is set between the pushing seat and the power plug. Each time the pushing seat is laterally moved, the spring is compressed. The inner frame is located at the front and rear ends of the sliding cavity and is provided with at least one limit port. The pushing seat is provided with a limit edge corresponding to the limit port. Each time the limit edge moves to the limit port, the spring can push the limit edge into the limit port.

[0011] Preferably, at least one embedding block is provided on the pushing seat, an embedding position is provided on the power plug, the pushing seat passes through the embedding position laterally and can move along the lateral position of the embedding position, an embedding opening is provided on the pushing seat, the embedding block is placed in the embedding opening, when the power plug is a European standard plug, a guide block is provided on the embedding block, the outer shell of the European standard power plug is provided with a guide hole, the guide block is placed in the guide hole, and the periphery of the embedding opening and the periphery of the embedding block are provided with corresponding alignment openings and alignment edges.

[0012] Preferably, each of the power connection plugs and the sliding cavity is provided with an avoidance position, and the power connection plugs are distributed on the inner frame in an up-and-down stacking manner relying on the avoidance position.

[0013] Preferably, a fuse is connected between the conductive sheet and the conductive socket and the circuit board.

[0014] Due to the adoption of the above scheme, the present invention adopts the arrangement of interference plates on the same side, so that each time the power plug is pushed, after the interference plate is pushed, on the one hand, it is staggered to allow the connection rod of the pushed power plug to pass through, and on the other hand, it forms a block for the connection rod of another power plug to be pushed out. In this way, the problem of simultaneously pushing out the power plugs can be easily avoided by moving only one plate body, which not only ensures the safety of use, but also effectively controls the occupation of the internal space compared with the establishment of other limiting structures; at the same time, each power plug is provided with an avoidance position on the path that another power plug must pass through, so that the structure can be further reduced, and the volume established by the inner frame can be further reduced, thereby reducing the overall volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0016] Figure 2 It is a structural schematic diagram of another side of an embodiment of the present invention.

[0017] Figure 3 It is a schematic diagram of the internal structure of an embodiment of the present invention.

[0018] Figure 4 4 is a cross-sectional view of an interference plate according to an embodiment of the present invention.

[0019] Figure 5 It is a schematic diagram of the structure between the power plug and the sliding cavity according to an embodiment of the present invention.

[0020] Figure 6 It is a schematic structural diagram of a European standard electrical plug according to an embodiment of the present invention.

[0021] Figure 7 It is a structural explosion diagram of the European standard electrical plug according to an embodiment of the present invention from another direction.

[0022] Figure 8 It is a schematic structural diagram of a British standard electrical plug according to an embodiment of the present invention.

[0023] Fig. 9 It is a schematic structural diagram of an American standard electrical plug according to an embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] like Figures 1 to 7As shown, a simple limited conversion socket provided in this embodiment includes a shell 1 and a circuit board (not shown in the figure) located inside the shell 1, an inner frame 2, at least two power plugs 3 and a conductive sheet 4 corresponding to the power plugs 3, an avoidance hole 5 is provided at one end surface of the shell 1 and at a position directly connected to the power plug 3, a socket 6 is provided at the other end surface of the shell 1, a conductive socket 7 is provided in the shell 1 relative to the socket 6, the power plug 3 is slidably mounted on the inner frame 2 through a sliding cavity 8, each of the power plugs 3 is installed with a push seat 9 with insulating properties, each of the push seats 9 is provided with a push head 11 located outside the shell 1 through a connecting rod 10, the conductive sheet 4 is installed on the inner frame 2, and the insertion port of each conductive sheet 4 corresponds to the push track of the corresponding power plug 3, After the plug of the power plug 3 is pushed out from the avoidance hole, the conductive part 21 of the power plug 3 respectively contacts the conductive sheet 4, and the conductive sheet 4 and the conductive socket 7 are electrically connected to the circuit board. The pushing head 11 on each of the pushing seats 9 is located on the same side of the inner frame 2, and the inner frame 2 is provided with a sliding groove on the side facing the pushing head 11, and an interference plate 12 is placed in the sliding groove. The interference plate 12 can move relative to the sliding groove, and after sliding, there is only a gap for pushing a single connecting rod 10 between the interference plate 12 and the interference plate 12 or between the interference plate 12 and the upper and lower ports of the sliding groove, and the end face of one end of the interference plate 12 is provided with a guiding inclined surface 13, so that when the connecting rod 10 touches the guiding inclined surface 13 of the interference plate 12, the interference plate 12 can be forced to move in the sliding groove.

[0028] In this embodiment, an interference plate 12 is set on the same side, so that each time the power plug 3 is pushed, after the interference plate 12 is pushed, on the one hand, it is staggered to allow the connection rod 10 of the pushed power plug 3 to pass through, and on the other hand, it blocks the connection rod 10 of the other power plug 3 from being pushed out. In this way, the problem of the power plugs 3 being pushed out at the same time can be easily avoided by moving only one plate body, which not only ensures safety in use, but also effectively controls the occupancy of the internal space compared with setting up other limit structures.

[0029] In the specific operation, in order to better illustrate the structural principle, three power plugs 3 and two interference plates 12 are used for structural description, and the three power plugs 3 can be set as European standard plugs, British standard plugs, and American standard plugs respectively. When it is necessary to push out the European standard plug located at the top, the push head 11 of the European standard power plug 3 is pushed outward, so that the European standard power plug 3 is gradually pushed out in the direction of the avoidance hole 5. When pushing, it will rely on its own connecting rod 10 to resist the guiding inclined surface 13 at one end of the interference plate 12 located at the top, so that the two interference plates 12 will be forced to move synchronously to one side of the sliding groove, thereby forming a connection rod 10 that meets the European standard power plug 3. There is no gap between the interference plates 12 and the interference plates 12, and between the interference plates 12 and the other side of the sliding groove, so that other power plugs 3 will not be pushed out. When another power plug 3 needs to be pushed out, the pushed out power plug 3 needs to be returned to its original position, and then another power plug 3 is pushed out according to the demand, such as the British standard power plug 3 located in the middle. When the British standard power plug 3 is pushed outward, its own connecting rod 10 is used to contact the guiding inclined planes 13 of the two interference plates 12, so that the two interference plates 12 move to both sides respectively, so that a gap is formed between the two interference plates 12, and then the British standard power plug 3 is pushed out. When the American standard power plug 3 located at the bottom is pushed outward, it is the same as the pushing principle of the European standard power plug 3. After pushing, relying on the action of the connecting rod 10 and the guiding inclined plane 13, the two interference plates 12 are forced to move upward uniformly to form the gap required for the American standard power plug 3 to be pushed out. Among them, after each power plug 3 is pushed out, it will form a conflict with the corresponding conductive sheet 4, forming a circuit conduction, thereby satisfying the access to the power supply.

[0030] Furthermore, the inner frame 2 of this embodiment is detachably mounted in the housing 1, for example, by screws. This detachable mounting form allows the internal components to exist separately in the form of a container module when all the internal components are mounted on the inner frame 2, which is convenient for subsequent maintenance and replacement, and also facilitates the subsequent single sale of the container module.

[0031] Furthermore, with respect to the sliding design of the interference plate 12, the sliding groove of the present embodiment includes a first slot 14 arranged at the front end of the inner frame and a second slot 15 arranged at the rear end of the inner frame 2, and the two ends of the interference plate 12 are respectively placed in the first slot 14 and the second slot 15. In this way, the interference plate 12 is limited by the first slot 14 and the second slot 15, so that the interference plate 12 forms a two-way interlocking, which can make the interference plate 12 slide more stably.

[0032] Furthermore, the pushing of the interference plate 12 mainly relies on the resistance between the end face of the connecting rod 10 and the guiding inclined surface 13. Therefore, in order to push the interference plate 12 more smoothly, the connecting rod 10 of this embodiment is provided with a chamfered surface on the side close to the guiding inclined surface 13. Relying on the contact between the chamfered surface and the guiding inclined surface 13, the interference plate 12 can be better pushed and allowed to slide.

[0033] Furthermore, in order to lock the power plug 3 after it is pushed out or pushed back, and to prevent it from moving without human intervention, the pushing seat 9 of this embodiment is embedded in one end of the power plug 3, so that the pushing seat 9 can be laterally moved relative to the power plug 3, and at least one spring 16 is set between the pushing seat 9 and the power plug 3. Each time the pushing seat 9 is laterally moved, the spring 16 is compressed, and the front and rear ends of the inner frame 2 located in the sliding cavity 8 are provided with at least one limit port 17, and the pushing seat 9 is provided with a limit edge 18 corresponding to the limit port 17. Each time the limit edge 18 moves to the limit port 17, the spring 16 can push the limit edge 18 into the limit port 17.

[0034] Further, with respect to the specific structure that the push seat 9 can be laterally displaced relative to the power plug 3, at least one embedding block 21 can be provided on the push seat 9 of this embodiment, the power plug 3 is provided with an embedding position 22, the push seat 9 laterally passes through the embedding position 22 and can move along the lateral position of the embedding position 22, the push seat 9 is provided with an embedding opening 23, the embedding block 21 is placed in the embedding opening 23, when the power plug 3 is a European standard plug, the embedding block 21 is provided with a guide block 24, the outer shell of the European standard power plug 3 is provided with a guide hole 25, the guide block 25 is placed in the guide hole 25, and the periphery of the embedding opening 23 and the periphery of the embedding block 21 are provided with corresponding alignment openings 26 and alignment edges 27. In this way, the lateral displacement of the push seat 9 can be achieved, and the volume can also be effectively reduced to make the structure more compact.

[0035] Furthermore, in order to reduce the volume, in this embodiment, each of the power plugs 3 and the sliding cavity 8 is provided with an avoidance position 19, and the power plugs 3 are stacked up and down on the inner frame 2 by relying on the avoidance position 19. In this way, the internal space can be reasonably designed, the structure is more compact, and the volume can be reduced.

[0036] Furthermore, to ensure circuit safety, a fuse 20 is connected between the conductive sheet 4 and the conductive socket 7 of this embodiment and the circuit board, wherein the fuse 20 is installed on the inner frame 2 in a plug-in manner, and the fuse 20 can be a cylindrical ceramic fuse.

[0037] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A simple limit conversion socket, characterized by: The invention comprises a shell and a circuit board located inside the shell, an inner frame, at least two power plugs and conductive sheets corresponding to the power plugs. An avoidance hole is provided at a position where one end face of the shell directly contacts the power plug, a socket is provided at the other end face of the shell, a conductive socket is provided in the shell relative to the socket, the power plug is slidably mounted on the inner frame through a sliding cavity, each of the power plugs is provided with a push seat with insulating properties, each of the push seats is provided with a push head located outside the shell through a connecting rod, the conductive sheets are mounted on the inner frame, and the insertion port of each of the conductive sheets corresponds to the push track of the corresponding power plug, when the plug of the power plug is moved from After being pushed out from the avoidance hole, the conductive parts of the electrical plug respectively come into contact with the conductive sheets, and the conductive sheets and the conductive socket are electrically connected to the circuit board. The pushing heads on each of the pushing seats are located on the same side of the inner frame, and the inner frame is provided with a sliding groove on the side facing the pushing head, and an interference plate is placed in the sliding groove. The interference plate can move relative to the sliding groove, and after sliding, there is only a gap for pushing a single connecting rod in between the interference plates and the interference plates or between the interference plates and the upper and lower ports of the sliding groove, and the end faces of one end of the interference plates are provided with guiding inclined surfaces, so that when the connecting rod touches the guiding inclined surfaces of the interference plates, the interference plate can be forced to move in the sliding groove.

2. A simple limit conversion socket as claimed in claim 1, characterized in that: The inner frame is detachably installed in the shell.

3. A simple limit conversion socket as claimed in claim 1, characterized in that: The sliding groove comprises a first notch arranged at the front end of the inner frame and a second notch arranged at the rear end of the inner frame, and two ends of the interference plate are respectively placed in the first notch and the second notch.

4. A simple limit conversion socket as claimed in claim 3, characterized in that: The connecting rod is provided with a chamfered surface on one side close to the guiding inclined surface.

5. A simple limit conversion socket as claimed in claim 4, characterized in that: The pushing seat is embedded in one end of the power plug so that the pushing seat can be laterally moved relative to the power plug. At least one spring is set between the pushing seat and the power plug. Each time the pushing seat is laterally moved, the spring is compressed. The inner frame is located at the front and rear ends of the sliding cavity and is provided with at least one limit port. The pushing seat is provided with a limit edge corresponding to the limit port. Each time the limit edge moves to the limit port, the spring can push the limit edge into the limit port.

6. A simple limit conversion socket as claimed in claim 5, characterized in that: At least one embedding block is arranged on the pushing seat, an embedding position is arranged on the power plug, the pushing seat passes through the embedding position laterally and can move along the lateral position of the embedding position, an embedding opening is arranged on the pushing seat, the embedding block is placed in the embedding opening, when the power plug is a European standard plug, a guide block is arranged on the embedding block, the shell of the European standard power plug is provided with a guide hole, the guide block is placed in the guide hole, and the periphery of the embedding opening and the periphery of the embedding block are provided with corresponding alignment openings and alignment edges.

7. A simple limit conversion socket as claimed in claim 6, characterized in that: Each of the power connection plugs and the sliding cavity is provided with an avoidance position, and the power connection plugs are distributed on the inner frame in an up-and-down stacking manner relying on the avoidance position.

8. The simple limit conversion socket according to claim 1, characterized in that: A fuse is connected between the conductive sheet, the conductive socket and the circuit board.

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