Fast connection type wall plug with locking structure

Abstract

The application discloses a quick-connection wall-mounted socket with a locking structure, which comprises a shell, a plurality of wiring through holes are formed on the back surface of the shell, a wiring assembly is arranged in the shell, an open accommodating gap is formed on the side wall of the shell, a pusher abutting against the wiring assembly is arranged in the accommodating gap, the pusher comprises an inner surface and an outer surface, one end of the inner surface is fixed with a support block perpendicular to the pusher, rotating shafts with the same axis are fixed on the two sides of the support block, rotating grooves for the rotating shafts to rotate are formed on the inner walls of the two sides of the accommodating gap, locking blocks are further arranged on the two sides of the inner surface, locking grooves for the locking blocks to be fit in are formed on the inner walls of the two sides of the accommodating gap, and the outer surface is flush with the outer wall of the shell when the pusher is in an initial state without operation.

Description

Technical Field

[0001] This application relates to the technical field of sockets, and in particular to quick-connect wall sockets with locking mechanisms. Background Technology

[0002] As a common electrical connection device, sockets are widely used in homes, offices and industrial places. They usually have several holes on the front and the back is used to connect the power cord.

[0003] In the prior art, sockets used for fixed installation on the wall typically have several wiring holes on the back of their housing. Inside the housing, there is a circuit cavity that communicates with the wiring holes. A wiring handle is hinged to the housing at the connection point between the circuit cavity and the outside. A locking spring is provided inside the circuit cavity. When the operator moves the wiring handle, the wiring handle will press against the locking spring. After the wire is passed through the wiring hole, the wiring handle is released, and the locking spring resets under the action of the spring force, thereby pressing against the wire and limiting and fixing the wire.

[0004] However, in the structure of the above-mentioned socket, when the operator does not move the wiring handle to press the spring part, the wiring handle is in a loose state. When the socket is installed in an environment with slight vibration, the wiring handle will wobble to a certain extent, which not only affects the overall appearance and structural integrity of the socket, but may also cause interference during installation or use due to the protruding wiring handle, hindering the tight installation or disassembly of the socket.

[0005] Meanwhile, the continuous shaking will be transmitted to the contact spring part through the wiring handle, causing the spring part to be subjected to additional, unexpected periodic stress. Under long-term action, this may accelerate the fatigue of the metal material of the spring part, reduce its elastic modulus, and weaken the clamping force. Once the clamping force of the wire clamping part on the wire is insufficient, hot spots with increased contact resistance will be generated at the energized point. This may result in increased energy loss and excessive temperature rise of the socket, or even lead to loose wiring, arcing, or even electric shock or fire risks. Summary of the Invention

[0006] To limit the position of the wiring handle outside the quick-connect structure, a quick-connect wall socket with a locking mechanism is provided.

[0007] The above-mentioned objective of this application is achieved through the following technical solution: A quick-connect wall socket with a locking structure includes a housing. Several wiring through holes are formed on the back of the housing. A circuit cavity communicating with the wiring through holes is formed inside the housing. A wiring assembly is provided within the circuit cavity. A clearance notch communicating with the circuit cavity is formed on the side wall of the housing. An actuating element abuts against the wiring assembly is provided within the clearance notch. The actuating element includes an inner surface facing the wiring assembly and an outer surface facing away from the wiring assembly. A support block perpendicular to the actuating element is fixed to one end of the inner surface. Rotating shafts on the same axis are fixed to both sides of the support block. Rotating grooves for the rotating shafts to rotate are formed on the inner walls of both sides of the clearance notch. Locking blocks are also provided on both sides of the inner surface. Locking grooves for the locking blocks to slide into are formed on the inner walls of both sides of the clearance notch. When the actuating element is in its initial, unoperated state, the outer surface is flush with the outer wall of the housing.

[0008] By adopting the above technical solution, the interference fit between the locking block and the locking groove provides a mechanical locking force to the toggle component in the initial state, eliminating the unexpected shaking caused by slight vibration and solving the problems of affecting appearance and hindering installation mentioned in the background technology; and cutting off the periodic stress transmitted by the toggle component to the spring part, thereby fundamentally preventing material fatigue and clamping force attenuation of the spring part; the design of the outer surface being flush with the outer wall of the housing makes the back of the socket a flat surface, which is convenient for tight wall installation without protrusion interference.

[0009] Preferably, the end of the locking block is provided with a guide arc surface.

[0010] By adopting the above technical solution, when the actuating component is pressed into the housing, the guide arc surface can play a guiding and centering role, so that the locking block can slide into the locking groove more smoothly, avoiding jamming, scratching or damage that may be caused by forced pressing.

[0011] Preferably, a plurality of actuating protrusions are integrally formed on the end of the inner surface away from the support block.

[0012] By adopting the above technical solution, the toggle protrusion significantly increases the friction between the user's finger and the toggle component, especially when a larger force is required, preventing slippage; it allows the user to accurately locate the point of force through touch even without looking directly at the operating part, improving the accuracy and experience of operation.

[0013] Preferably, the wiring assembly includes a support part, a spring part, and a wire clamping part. The two ends of the spring part are respectively connected to the support part and the wire clamping part, and the support block has a limiting groove for the spring part to be inserted.

[0014] By adopting the above technical solution, the limiting groove optimizes the contact between the actuating component and the spring piece into a surface contact or constraint contact, making the control of the spring piece by the actuating component more precise and stable, preventing the spring piece from slipping off the support block during the actuation process, and ensuring the reliability of the wiring action.

[0015] Preferably, the support block includes a support surface that abuts against the spring piece portion, and when the toggle member is moved to the wiring position, the support surface and the abutment portion of the spring piece portion are relatively parallel.

[0016] By adopting the above technical solution, when the toggle is moved to the wiring position, the support surface acts as a rigid and immovable support reference surface, making large-area parallel contact with the spring part, which is equivalent to providing a reliable mechanical stop for the pressed spring part and suppressing the elastic restoring force of the spring part itself.

[0017] Preferably, the inner wall of the limiting groove is further provided with a guide slope, and the guide slope and the support surface are provided with a chamfer.

[0018] By adopting the above technical solution, the relative position of the spring piece in the limiting groove will change during the rotation of the toggle component; the guide slope and the chamfer together form a smooth transition channel, which can effectively guide the spring piece from its initial embedded position to the working position where it finally fully contacts the support surface, changing the possible edge collision to slope sliding, which greatly reduces the wear of parts caused by long-term use and repeated operation.

[0019] Preferably, when the support surface abuts against the spring piece, the inner wall of the clearance notch abuts against the outer surface.

[0020] By adopting the above technical solution, when the spring part abuts against the support surface, a huge reaction force is generated, which attempts to make the actuator rotate in the opposite direction. At this time, the inner wall of the clearance notch provides a support force of equal magnitude and opposite direction on the outer surface of the actuator, so that the actuator, the support block and the inner wall of the clearance notch together form a rigid, self-locking force triangle, which prevents the spring part from driving the actuator to make any unexpected rotational movement through the support block.

[0021] Preferably, the wire clamping part further includes a first wire clamping piece and a second wire clamping piece located on both sides of the support part, a transmission piece connecting the first wire clamping piece and the second wire clamping piece is provided between the two, the first wire clamping piece abuts against the support part, and a wire clamping groove with half open is also opened between the first wire clamping piece and the second wire clamping piece, and the cross section of the wire clamping groove along the grooving direction is larger than the cross section of the wiring through hole.

[0022] By adopting the above technical solution, a highly efficient lever force amplification mechanism is formed by linking two wire clamping plates through a transmission plate. A large wire clamping force can be generated with a small pulling force. The cross-section of the wire clamping groove is larger than that of the wiring through hole, which means that the wire will not interfere with the entrance of the wire clamping groove during the insertion process, guiding the wire smoothly into the predetermined clamping position and realizing the core function of rapid wiring.

[0023] Preferably, the support block, locking block, and actuating element are integrally injection-molded plastic parts.

[0024] By adopting the above technical solutions, integrated molding reduces the number of parts, eliminates assembly steps, and greatly reduces material and assembly costs; it avoids potential weaknesses at the joints of multiple parts, resulting in higher mechanical strength of the components and good performance consistency for each product, making it suitable for mass production.

[0025] In summary, this application has at least the following beneficial effects: 1. Through the interference fit design of the locking block on the toggle and the locking groove on the housing, a positive mechanical locking force is provided for the toggle in the non-operating state, which completely eliminates the unexpected shaking of the toggle caused by environmental vibration.

[0026] 2. The design of the outer surface of the toggle component being flush with the outer wall of the housing creates a flat surface on the back of the socket, avoiding interference caused by protrusions during installation and achieving a tight and seamless fit with the installation environment; 3. The support block and its support surface form a large-area parallel abutment with the spring part of the wiring assembly, constituting a rigid support reference, which effectively suppresses the elastic recovery of the spring part. When the toggle moves to the wiring position, the inner wall of the clearance notch abuts with the outer surface of the toggle, together with the support block, forming a stable force triangle rigid self-locking structure, which restricts the rotational freedom of the toggle and ensures that the wiring assembly can continuously maintain the wiring position, facilitating the installation of wires. Attached Figure Description Figure 1 A schematic diagram of a quick-connect wall socket with a locking mechanism; Figure 2 for Figure 1 Cross-section Figure 1 ; Figure 3 for Figure 1 Cross-section Figure 2 ; Figure 4 This is a schematic diagram of the toggle mechanism; Figure 5 for Figure 1 Cross-section Figure 3 ; Figure 6 for Figure 2A magnified view of a portion at point A.

[0027] Reference numerals: 1. Housing; 11. Wiring through hole; 12. Circuit cavity; 13. Clearance notch; 14. Rotating groove; 15. Locking groove; 2. Wiring assembly; 21. Support part; 22. Spring part; 23. Wire clamping part; 231. First wire clamping piece; 232. Second wire clamping piece; 233. Transmission piece; 234. Wire clamping groove; 3. Actuating element; 31. Inner surface; 32. Outer surface; 33. Support block; 331. Rotating shaft; 332. Support surface; 333. Limiting groove; 334. Guide slope; 34. Locking block; 341. Guide arc surface; 35. Actuating protrusion. Detailed Implementation The following section provides a more detailed description, in conjunction with the accompanying diagrams: As attached Figure 1 and attached Figure 2 As shown, the quick-connect wall socket with locking structure includes a housing 1, a wiring assembly 2 and a toggle 3. Several wiring through holes 11 are opened on the back of the housing 1, and a circuit cavity 12 connected to the wiring through holes 11 is opened inside the housing 1. The wiring assembly 2 is disposed in the circuit cavity 12.

[0028] As attached Figure 2 and attached Figure 3 As shown, the wiring assembly 2 includes a support part 21, a spring part 22, and a wire clamping part 23. The support part 21, the spring part 22, and the wire clamping part 23 are all sheet-like structures, and the support part 21, the spring part 22, and the wire clamping part 23 are integrally formed. The two ends of the spring part 22 are connected to the support part 21 and the wire clamping part 23 respectively. The spring part 22 is usually a flexible metal sheet, and materials such as copper alloy can be selected to ensure its good elasticity. The support part 21 and the spring part 22 are both confined within the circuit cavity 12.

[0029] The wire clamping part 23 is used to clamp the wire. The wire clamping part 23 includes a first wire clamping piece 231 and a second wire clamping piece 232 located on both sides of the support part 21. A transmission piece 233 connecting the first wire clamping piece 231 and the second wire clamping piece 232 is provided. The first wire clamping piece 231 is located in the circuit cavity 12, and the second wire clamping piece 232 is not located in the circuit cavity 12. The second wire clamping piece 232 can be moved by the transmission piece 233 through the pressing spring part 22. When the first wire clamping piece 231 abuts against the support part 21, the second wire clamping piece 232 will no longer move.

[0030] A half-open wire clamping groove 234 is also provided between the first clamping piece 231 and the second clamping piece 232. When the spring piece 22 is pressed, the second clamping piece 232 moves away from the first clamping piece 231, and the wire clamping groove 234 is aligned with the wiring through hole 11. When the spring piece 22 is no longer pressed, the spring piece 22 deforms and recovers, and the second clamping piece 232 moves towards the first clamping piece 231, thereby clamping the wire. The cross-section of the wire clamping groove 234 along the slotting direction is larger than the cross-section of the wiring through hole 11, which facilitates the wire to enter the wire clamping groove 234 smoothly.

[0031] As attached Figure 4 and attached Figure 5 As shown, a clearance notch 13 communicating with the circuit cavity 12 is opened on the side wall of the housing 1. The toggle member 3 is disposed in the clearance notch 13 and abuts against the spring part 22. The toggle member 3 includes an inner surface 31 facing the spring part 22 and an outer surface 32 facing away from the spring part 22. One end of the inner surface 31 is fixed with a support block 33 perpendicular to the toggle member 3. The support block 33 can adopt a rectangular block structure and the material can be plastic with a certain strength. Rotating shafts 331 on the same axis are fixed on both sides of the support block 33. The rotating shafts 331 are cylindrical and their material is the same as that of the support block 33. Rotating grooves 14 for the rotating shafts 331 to rotate are opened on the inner walls of both sides of the clearance notch 13. The shape of the rotating grooves 14 is adapted to the rotating shafts 331 and is a circular groove, so that the rotating shafts 331 can rotate flexibly in the rotating grooves 14, thereby realizing the rotation of the toggle member 3 along the axis of the rotating shafts 331.

[0032] Locking blocks 34 are integrally formed on both sides of the inner surface 31. The end of the locking block 34 is provided with a guide arc surface 341. The material of the locking block 34 is the same as that of the support block 33. Locking grooves 15 are opened on the inner walls on both sides of the clearance notch 13 for the locking block 34 to slide into with interference fit. The shape of the locking groove 15 matches the locking block 34. When the toggle member 3 does not abut against the spring part 22, the toggle member 3 can be limited and fixed by the locking block 34 and the locking groove 15.

[0033] As attached Figure 4 and attached Figure 6 As shown, several actuating protrusions 35 are integrally formed on the inner surface 31 away from the support block 33. The actuating protrusions 35 can be designed as hemispherical or columnar to increase the friction when the operator actuates them, making operation easier. The support block 33, locking block 34, actuating protrusions 35 and actuating component 3 are all integrally injection molded plastic parts. This integral molding method ensures the integrity and stability of the structure and reduces production costs.

[0034] The support block 33 includes a support surface 332 that abuts against the spring piece 22. When the actuating member 3 is moved to the wiring position, the actuating member 3 is in a horizontal and perpendicular state to the housing 1. The support surface 332 is parallel to the abutting part of the spring piece 22. Therefore, the force of the spring piece 22 pressing against the support surface 332 and the force of the rotating shaft 331 pressing against the inner wall of the housing 1 are in the same direction. The support surface 332 can maintain the state of continuously pressing against the spring piece 22, which facilitates the wire to pass through the wiring through hole 11 and the wire clamping groove 234. At the same time, the inner wall of the clearance notch 13 in this state also abuts against the outer surface 32 of the actuating member 3. The inner wall of the clearance notch 13 provides a support force of equal magnitude and opposite direction to the outer surface 32 of the actuating member 3, preventing the spring piece 22 from driving the actuating member 3 to undergo any unexpected rotational movement through the support block 33.

[0035] When the actuating element 3 is not actuated and is in the clamped position, the actuating element 3 is in a state relatively parallel to the housing 1. The support block 33 has a limiting groove 333 for the spring piece 22 to be inserted. The limiting groove 333 can prevent the spring piece 22 from shifting during use. The inner wall of the limiting groove 333 is also provided with a guide slope 334, and there is a chamfer between the guide slope 334 and the support surface 332. This allows the relative position of the spring piece 22 in the limiting groove 333 to change during the rotation of the actuating element 3. The guide slope 334 and the chamfer together form a smooth transition channel, which can effectively guide the spring piece 22 from its initial embedded position to the working position where it fully contacts the support surface 332. This changes the possible sharp corner collision to slope sliding, greatly reducing the wear of parts caused by long-term use and repeated operation.

[0036] The implementation principle of this embodiment is as follows: When not in operation, the outer surface 32 of the toggle member 3 is flush with the outer wall of the housing 1, and the locking block 34 slides into the locking groove 15 with interference fit, so that the toggle member 3 is stably in the initial position and avoids shaking. When wiring is required, the operator moves the toggle 3 by moving the protrusion 35, the support block 33 rotates around the rotating shaft 331, the support surface 332 presses against the spring piece 22, so that the wire clamping part 23 opens, and the wire passes through the wiring through hole 11 into the wire clamping groove 234. After releasing the toggle 3, the spring piece 22 returns to its original position, and the wire clamping part 23 clamps the wire.

[0037] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of protection claimed in this application.

Claims

1. A quick-connect wall-mounted socket with a locking structure, comprising a housing (1), wherein a plurality of wiring through holes (11) are opened on the back side of the housing (1), and a circuit cavity (12) communicating with the wiring through holes (11) is opened inside the housing (1), wherein a wiring assembly (2) is provided inside the circuit cavity (12), characterized in that, The housing (1) has a clearance notch (13) on its side wall that communicates with the circuit cavity (12). The clearance notch (13) contains an actuating element (3) that abuts against the wiring assembly (2). The actuating element (3) includes an inner surface (31) facing the wiring assembly (2) and an outer surface (32) facing away from the wiring assembly (2). One end of the inner surface (31) is fixed with a support block (33) perpendicular to the actuating element (3). The two sides of the support block (33) are respectively fixed There is a rotating shaft (331) on the same axis. The inner walls on both sides of the clearance notch (13) are provided with rotating grooves (14) for the rotating shaft (331) to rotate. The inner surfaces (31) are also provided with locking blocks (34) on both sides. The inner walls on both sides of the clearance notch (13) are provided with locking grooves (15) for the locking blocks (34) to slide into with interference fit. When the actuating member (3) is in the initial state of not being operated, the outer surface (32) is flush with the outer wall of the housing (1).

2. The quick-connect wall socket with locking structure according to claim 1, characterized in that, The locking block (34) has a guide arc surface (341) at its end.

3. The quick-connect wall socket with locking structure according to claim 1, characterized in that, Several actuating protrusions (35) are integrally formed on one end of the inner surface (31) away from the support block (33).

4. The quick-connect wall socket with locking structure according to claim 1, characterized in that, The wiring assembly (2) includes a support part (21), a spring part (22) and a wire clamping part (23). The two ends of the spring part (22) are connected to the support part (21) and the wire clamping part (23) respectively, and the support block (33) has a limiting groove (333) for the spring part (22) to be inserted.

5. The quick-connect wall socket with locking structure according to claim 4, characterized in that, The support block (33) includes a support surface (332) that abuts against the spring piece (22). When the toggle (3) is toggled to the wiring position, the support surface (332) and the abutting part of the spring piece (22) are relatively parallel.

6. The quick-connect wall socket with locking structure according to claim 5, characterized in that, The inner wall of the limiting groove (333) is also provided with a guide slope (334), and a chamfer is provided between the guide slope (334) and the support surface (332).

7. The quick-connect wall socket with locking structure according to claim 5, characterized in that, When the support surface (332) abuts against the spring piece (22), the inner wall of the clearance notch (13) abuts against the outer surface (32).

8. The quick-connect wall socket with locking structure according to claim 4, characterized in that, The clamping part (23) also includes a first clamping piece (231) and a second clamping piece (232) located on both sides of the support part (21). A transmission piece (233) connecting the first clamping piece (231) and the second clamping piece (232) is provided between them. The first clamping piece (231) abuts against the support part (21). A half-open clamping groove (234) is also opened between the first clamping piece (231) and the second clamping piece (232). The cross section of the clamping groove (234) along the groove direction is larger than the cross section of the wiring through hole (11).

9. The quick-connect wall socket with locking structure according to claim 1, characterized in that, The support block (33), locking block (34) and toggle element (3) are integrally injection molded plastic parts.

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