Socket

Abstract

The utility model provides a socket, which relates to the technical field of power sockets and comprises a shell, at least one socket function module is arranged on the shell, a first jack for a grounding pin of a three-pin plug to insert is arranged on the shell, a ground wire plug bush and a card are arranged in the first jack, the card is positioned above the ground wire plug bush, a plug-in through hole is arranged on the card, and the plug-in through hole is communicated with the plug-in through hole. The two ends of the clamping piece are the first end and the second end respectively, the first end is movably connected to the inner side wall of the first inserting hole, the second end extends out of the first inserting hole and is connected with an adjusting block, and the adjusting block can move up and down relative to the shell. When the plug pin is inserted into the first jack, the clamping piece is in an inclined state, and the clamping piece carries out self-locking on the plug pin. When the plug pin is pulled out of the first jack, the inclination angle of the clamping piece is reduced through the adjusting block, and unlocking of the plug pin is achieved. And through the self-locking mechanism of the clamping sheet, the plug is effectively prevented from loosening or falling off in the use process, and the use safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of power socket technology, and more specifically, to a socket. Background Technology

[0002] A socket, as the name suggests, is a base with one or more outlets for inserting electrical wires. It allows for various wire insertions, thus facilitating connections with other circuits. By controlling the contact or separation of the metal posts or prongs of the plug with the metal parts inside the socket, the corresponding circuit can be turned on or off.

[0003] In our daily use of electrical appliances and electronic devices, this plug and socket power connection method is extremely common and is used to connect power cords or data cables. However, this connection method usually lacks a plug fixing mechanism, so the plug is easy to loosen or even fall off during use. Utility Model Content

[0004] The problem this invention solves is: how to design a socket that can achieve a stable self-locking when the plug is inserted to prevent it from loosening and falling off, while also being able to easily unlock it through a simple operation when the plug needs to be unplugged.

[0005] To address the aforementioned problems, this utility model provides a socket, including a housing. The housing has at least one socket functional module. The housing has a first socket hole for inserting a grounding pin of a three-prong plug. The socket functional module includes a grounding sleeve and a clip disposed within the first socket hole. The clip is located above the grounding sleeve and has a through-hole that communicates vertically with the first socket hole. The clip has a first end and a second end, respectively. The first end is movably connected to the inner wall of the first socket hole, and the second end extends out of the first socket hole. An adjusting block is connected to the plug, which can move up and down relative to the housing. When the plug pin is inserted into the first socket, the plug pin passes through the insertion hole and connects to the grounding sleeve. The clip is tilted relative to the central axis of the first socket so that the insertion hole engages with the plug pin. When the plug pin is pulled out of the first socket, the adjusting block moves relative to the housing and drives the clip to rotate around the first end, making the clip perpendicular to the central axis of the first socket, thereby releasing the engagement between the insertion hole and the plug pin.

[0006] Optionally, a slot is provided on one side of the adjustment block, the second end extends out of the first socket and is inserted into the slot, the upper end of the side of the adjustment block away from the slot extends out of the housing to form a button, and an elastic element is connected between the lower end of the adjustment block and the bottom of the housing.

[0007] Optionally, the bottom of the housing is provided with a guide post corresponding to the elastic element, the lower end of the adjusting block is provided with an upwardly extending mounting groove, one end of the elastic element is sleeved on the outer periphery of the guide post, and the other end of the elastic element is inserted into the mounting groove.

[0008] Optionally, a slot is provided on the inner sidewall of the first socket, the slot is located at the upper end of the grounding socket, and the first end is inserted into the slot.

[0009] Optionally, the housing is provided with a second socket and a third socket, and the socket functional module further includes a live wire sleeve or a neutral wire sleeve disposed in the second socket, and a neutral wire sleeve or a live wire sleeve disposed in the third socket.

[0010] Optionally, the grounding socket includes a base plate, both ends of which are connected to clamping springs, and a clamping gap is formed between the two clamping springs for inserting plug pins. The lower end of the base plate extends out of the first socket and is provided with a wiring hole.

[0011] Optionally, a limiting block is provided on the inner sidewall of the first socket, and the end of the clamping spring away from the card abuts against the upper end of the limiting block. A limiting groove is provided on the inner sidewall of the first socket, and the limiting groove is located at the lower end of the limiting block. Outwardly extending snap-fit ​​blocks are provided on both sides of the substrate, and the snap-fit ​​blocks are connected to the limiting groove.

[0012] Optionally, the socket functional module further includes a light guide post. The housing has mounting holes extending through both sides of the housing. The light guide post is engaged within the mounting holes and is used to indicate the operating status of the socket functional module. Optionally, the outer peripheral sidewall of the housing is provided with a plurality of latches at intervals, which are used to connect to the outer shell of the power distribution unit.

[0013] Optionally, the housing includes a body and a base, the outer peripheral sidewall of the base is provided with a plurality of locking blocks at intervals, and the lower end of the body is provided with a plurality of locking slots along the sidewall corresponding to the plurality of locking blocks, the locking blocks being engaged in the locking slots.

[0014] The beneficial effects of this utility model socket are as follows: When the ground pin of the three-prong plug is inserted into the first socket, the pin first passes through the insertion hole of the card and establishes an electrical connection with the ground sleeve. Due to the pushing force of the pin, the first end of the card (the end rotatably connected to the inner wall of the socket) and the second end (the end extending out of the socket and connected to the adjusting block) are not on the same straight line, causing the card to be tilted. This tilted state causes the card to generate an inward locking force on the pin, realizing a self-locking function and preventing the plug from loosening or falling off due to external force during use. When it is necessary to unplug the plug, the user can operate the adjusting block to move it up and down relative to the housing. The movement of the adjusting block causes the card to rotate around the first end, causing the second end to move closer to the horizontal line where the first end is located. This action reduces the tilt angle of the card relative to the horizontal line where the first end is located, thereby reducing the locking force on the pin, allowing the plug to be smoothly pulled out of the socket.

[0015] This invention effectively prevents the plug from loosening or falling off during use through a card-like self-locking mechanism, reducing the risk of circuit failure or electric shock due to poor contact and improving safety. It also makes the connection between the socket and plug more secure, maintaining good contact even under vibration or external interference, ensuring stable operation of electrical equipment. Furthermore, users can easily unlock and unplug the plug by simply moving the adjustment block up and down, making operation simple and quick, and improving the user experience. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0017] Figure 2 This is a partial structural diagram of one embodiment of the present utility model.

[0018] Figure 3 This is a top view of one embodiment of the present utility model;

[0019] Figure 4 for Figure 3 Cross-sectional view at point AA;

[0020] Figure 5 This is a schematic diagram of the structure of a grounding socket according to one embodiment of the present utility model;

[0021] Figure 6 This is a schematic diagram of the base structure of one embodiment of the present utility model;

[0022] Figure 7 for Figure 3 Cross-sectional view at point BB.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Housing; 11. Guide post; 12. Mounting hole; 13. Buckle; 14. Body; 141. Bayonet; 15. Base; 151. Locking block; 2. Socket functional module; 21. First socket; 211. Slot; 212. Limiting block; 213. Limiting groove; 22. Ground wire sleeve; 221. Base plate; 2211. Locking block; 222. Clamping spring; 223. Clamping gap; 224. Wiring hole; 23. Card; 231. Plug-in through hole; 232. First end; 233. Second end; 24. Adjustment block; 241. Slot; 242. Button; 243. Mounting groove; 25. Elastic element; 26. Second socket; 261. Live wire sleeve; 27. Third socket; 271. Neutral wire sleeve; 28. Light guide post. Detailed Implementation

[0025] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0026] In the attached diagram, the Z-axis represents the vertical direction, i.e., up and down, with the positive direction of the Z-axis representing up and the negative direction representing down. The X-axis represents the horizontal direction and is designated as the front and back position, with the positive direction of the X-axis representing the front and the negative direction representing the back. The Y-axis represents the left and right position, with the positive direction of the Y-axis representing the left and the negative direction representing the right. It should be noted that the aforementioned representations of the Z, Y, and X axes are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component 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.

[0027] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0028] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0029] like Figure 1 , Figure 2 As shown in the figure, a socket provided by this utility model embodiment includes a housing 1, and at least one socket function module 2 is provided inside the housing 1. The housing 1 has a first socket 21 for inserting a grounding pin of a three-prong plug. The socket function module 2 includes a grounding sleeve 22 and a card 23 disposed in the first socket 21. The card 23 is located above the grounding sleeve 22 and has a insertion through hole 231 that is vertically connected to the first socket 21. The two ends of the card 23 are a first end 232 and a second end 233, respectively. The first end 232 is movably connected to the inner wall of the first socket 21, and the second end 233 extends out of the first socket 21. An adjusting block 24 is connected to the plug, which can move up and down relative to the housing 1. When the plug pin is inserted into the first socket 21, the plug pin passes through the insertion hole 231 of the card 23 and connects to the grounding sleeve 22. The card 23 is tilted relative to the central axis of the first socket 21 so that the insertion hole 231 of the card 23 engages with the plug pin. When the plug pin is pulled out of the first socket 21, the adjusting block 24 moves relative to the housing 1 and drives the card 23 to rotate around the first end 232, so that the card 23 is perpendicular to the central axis of the first socket 21, thereby releasing the engagement between the insertion hole 231 of the card 23 and the plug pin.

[0030] Understandably, when the card 23 is tilted relative to the central axis of the first socket 21, the central axis of the insertion through hole 231 is tilted relative to the central axis of the first socket 21, and the plug pin is parallel to the central axis of the first socket 21. Therefore, the insertion through hole 231 can engage with the pin. When the card 23 is perpendicular to the central axis of the first socket 21, that is, the central axis of the insertion through hole 231 is parallel to the central axis of the first socket 21, the insertion through hole 231 can disengage from the pin, that is, the pin can be smoothly pulled out of the insertion through hole 231.

[0031] Specifically, the housing 1, as the external structure of the socket, not only protects the internal circuits and components but also provides a channel for plug insertion. The material and shape of the housing 1 can be selected and designed according to actual needs. At least one socket function module 2 is provided on the housing 1. This module is used to receive a three-prong plug and establish a circuit connection with it. Two or more socket function modules 2 can be set on the housing 1 as needed to form two-gang sockets or multi-gang sockets. The housing 1 has a first socket 21, the shape and size of which match the plug pins, ensuring that the pins can be smoothly inserted and contact the metal components inside the socket. A grounding sleeve 22 is provided inside the first socket 21 for connecting to the grounding pins of the plug, ensuring safe grounding of the circuit. Simultaneously, a card 23 is provided above the first socket 21, with a through hole 231 on the card 23. This through hole is vertically connected to the first socket 21, allowing the plug pins to pass through and connect to the grounding sleeve 22. The card 23 has a first end 232 and a second end 233 at its two ends. The first end 232 is rotatably connected to the inner wall of the first socket 21, allowing the card 23 to rotate around the first end 232. This enables the card 23 to tilt and reset according to the insertion and removal of the pin. The card 23 is one of the key components for achieving the self-locking function; it tilts and locks itself when the pin is inserted. The second end 233 of the card 23 extends out of the first socket 21 and is connected to an adjusting block 24. The adjusting block 24 can move up and down relative to the housing 1. Moving the adjusting block 24 causes the card 23 to rotate around the first end 232, thus achieving the self-locking or unlocking function of the card 23. The adjusting block 24 acts as a bridge connecting the card 23 and the external operating components. The user can change the tilt state of the card 23 by moving the adjusting block 24 up and down, thereby unlocking the plug. The adjusting block 24 should be easy for the user to operate and have a certain degree of stability and durability.

[0032] In this embodiment, the initial state of card 23 can be an inclined state, that is, card 23 is inclined relative to the central axis of the first socket 21, and the first end 232 and the second end 233 of card 23 are not on the same horizontal line. When the plug pin is inserted into the first socket 21, the head of the pin will pass through the insertion hole 231 and make an electrical connection with the grounding socket 22. During this process, due to the force of the pin, card 23 can rotate around the first end 232 or deform. When the head of the pin passes through the insertion hole 231 and the force of the pin disappears, card 23 rotates back to the initial state or restores its deformation around the first end 232, that is, card 23 returns to the inclined state (card 23 is inclined relative to the central axis of the first socket 21), so that card 23 can connect with the plug. The locking mechanism of the plug pins limits their movement, thus achieving a self-locking function and preventing the plug from loosening or falling off during use. When it is necessary to unplug the plug, the user can adjust the tilt of the card 23 by moving the adjusting block 24 up and down. The movement of the adjusting block 24 will cause the card 23 to rotate around the first end 232, causing the second end 233 to move closer to the horizontal line where the first end 232 is located, until the card 23 is nearly horizontal (the card 23 is perpendicular to the central axis of the first socket 21), thereby unlocking the plug. This embodiment, through the self-locking mechanism of the card 23, can effectively prevent circuit breakage or short circuits caused by the plug loosening or falling off during use. This not only improves the safety of electrical appliances but also reduces safety hazards such as fires caused by circuit faults. Moreover, the self-locking function makes the connection between the plug and the socket more secure, and the plug can maintain a stable connection even in vibrating or shaking environments, thereby ensuring the normal operation of electrical appliances. Furthermore, users do not need to worry about the plug falling off during use, thus reducing the inconvenience and trouble caused by frequent plugging and unplugging. Meanwhile, the socket's unlocking mechanism is simple and easy to understand. Users can easily unplug the plug by simply moving the adjustment block 24 up and down, which improves the user experience.

[0033] Optionally, such as Figure 3 , Figure 4 As shown, a slot 241 is provided on one side of the adjustment block 24, and the second end 233 extends out of the first insertion hole 21 and is inserted into the slot 241. The upper end of the side of the adjustment block 24 away from the slot 241 extends out of the housing 1 to form a button 242. An elastic element 25 is connected between the lower end of the adjustment block 24 and the bottom of the housing 1.

[0034] Specifically, such as Figure 4As shown, the adjusting block 24 is roughly U-shaped, comprising two spaced-apart columnar structures. One columnar structure is close to the card 23 and has a slot 241 at its end, while the other columnar structure is away from the card 23 and its end extends out of the housing 1 to form a button 242. The slot 241 allows the second end 233 of the card 23 to be stably inserted, thus ensuring the reliability of the connection between the adjusting block 24 and the card 23. The engagement between the card 23 and the adjusting block 24 is simple and easy to implement, and effectively prevents the card 23 from shaking or falling off during movement. The button 242 extends out of the housing 1, forming an easy-to-operate interface. Users can simply press this button 242 to move the adjusting block 24 up and down, realizing the self-locking and unlocking functions of the socket. The shape, size, and position of the button 242 can be designed according to actual needs to meet the usage habits of different users. The elastic element 25 (such as a spring) is connected between the lower end of the adjusting block 24 and the bottom of the housing 1, serving as a reset and buffer. This not only makes the adjusting block 24 more stable during movement but also allows it to automatically return to its original position after the user releases the button 242, preparing it for the next use. Simultaneously, the elastic element 25 can absorb and release energy, reducing impact and noise caused by operation.

[0035] In this optional embodiment, in the initial state, when the elastic element 25 is not compressed, the card 23 is tilted relative to the central axis of the first socket 21, and the second end 233 of the card 23 is closer to the insertion end of the first socket 21 than the first end 232. That is, the horizontal line where the second end 233 of the adjusting block 24 is connected to the card 23 is higher than the horizontal line where the first end 232 of the card 23 is located. When the plug pin is inserted into the first socket 21, the plug will push the card 23 to rotate around the first end 232, causing the second end 233 of the card 23 and the adjusting block 24 to move downward and compress the elastic element 25 until the card 23 is perpendicular or nearly perpendicular to the central axis of the first socket 21. At this time, the plug pin can smoothly pass through the insertion hole 231 of the card 23 and make an electrical connection with the ground socket 22. After the plug pins are electrically connected to the ground socket 22, the pressure on the plug is released. The elastic element 25 then returns to its original shape, pushing the adjusting block 24 and the second end 233 of the card 23 upwards. This causes the card 23 to reposition itself relative to the central axis of the first socket 21, allowing the insertion hole 231 of the card 23 to engage with the plug pins, thus locking the pins in place. When the plug needs to be removed, the user simply presses the button 242, causing the adjusting block 24 to move downwards and compress the elastic element 25. Simultaneously, the adjusting block 24 rotates the card 23 around its first end 232 until the card 23 is perpendicular or nearly perpendicular to the central axis of the first socket 21. This releases the engagement of the card 23 with the first socket 21, allowing the plug pins to be easily pulled out of the insertion hole 231 of the card 23. The user can then easily remove the plug from the first socket 21. When button 242 is released, the elastic element 25 pushes the adjusting block 24 back to its original position, preparing it for the next use. In this embodiment, button 242 allows users to operate the adjusting block 24 more conveniently without using tools or applying excessive force, greatly improving the ease of use of the socket. Furthermore, the cooperation between slot 241 and card 23, as well as the connection of the elastic element 25, makes the adjusting block 24 more stable during movement, preventing shaking or misalignment, ensuring the socket's locking and unlocking mechanisms operate stably and reliably. The reset function of the elastic element 25 ensures that the adjusting block 24 automatically returns to its original position after button 242 is released, avoiding safety hazards caused by misalignment of the adjusting block 24. Simultaneously, the self-locking mechanism further enhances the socket's safety.

[0036] Optionally, such as Figure 4 As shown, the bottom of the housing 1 is provided with a guide post 11 corresponding to the elastic element 25, and the lower end of the adjusting block 24 is provided with an upwardly extending mounting groove 243. One end of the elastic element 25 is sleeved on the outer periphery of the guide post 11, and the other end of the elastic element 25 is inserted into the mounting groove 243.

[0037] Specifically, at the bottom of the housing 1, corresponding to the position of the elastic element 25, a guide post 11 is provided. The main function of the guide post 11 is to provide stable support and guidance, ensuring that the elastic element 25 maintains the correct position and shape during installation and use. The guide post 11 is a protruding part at the bottom of the housing 1, and its shape and size match one end of the elastic element 25. The material of the guide post 11 can be metal or plastic, or other materials with a certain strength and rigidity. The mounting groove 243 is an upwardly extending part at the lower end of the adjusting block 24, and its shape and size match the other end of the elastic element 25. The main function of the mounting groove 243 is to insert the elastic element 25, so that the adjusting block 24 can be stably connected to the elastic element 25 and maintain a certain elasticity during movement. The material of the mounting groove 243 can be the same as that of the adjusting block 24, or other materials with sufficient strength and rigidity. One end of the elastic element 25 is sleeved on the outer periphery of the guide post 11, and the other end is inserted into the mounting groove 243 of the adjusting block 24. This installation method allows the elastic element 25 to stably provide elasticity and reset function under the constraint of the guide post 11 and the mounting groove 243. The elastic element 25 can be made of spring, rubber, or other materials with elastic recovery capability. By combining the guide post 11, the mounting groove 243, and the elastic element 25, a stable and reliable connection structure is formed, which not only provides stable support and guidance but also realizes the self-locking and unlocking functions of the socket. At the same time, since the design of the guide post 11 and the mounting groove 243 is relatively simple and easy to manufacture, the cost of the entire socket structure is effectively controlled.

[0038] In this optional embodiment, when the adjusting block 24 is subjected to an external force (such as pressing button 242), it moves along the direction of the guide post 11. At this time, the elastic element 25 is compressed or stretched, storing energy. When the external force disappears, the elastic element 25 releases energy, pushing the adjusting block 24 back to its original position, making the unlocking and self-locking process of the socket more stable and reliable. Through the constraint of the guide post 11 and the mounting groove 243, this embodiment ensures that the elastic element 25 maintains the correct position and shape during installation and use, thereby improving the stability of the entire socket structure. The guide post 11 and the mounting groove 243 reduce friction and wear of the elastic element 25 during movement, extending its service life. Because the elastic element 25 can stably provide elasticity and reset function under the constraint of the guide post 11 and the mounting groove 243, users can experience a smoother and more responsive feel when operating the socket. The guide post 11 and the mounting groove 243 make the installation process of the elastic element 25 simpler and more intuitive, reducing installation difficulty and cost.

[0039] Optionally, such as Figure 4 As shown, a slot 211 is provided on the inner side wall of the first socket 21. The slot 211 is located at the upper end of the ground wire socket 22, and the first end 232 is inserted into the slot 211.

[0040] Specifically, a slot 211 is provided on the inner wall of the first socket 21, the shape and size of which match the first end 232 of the card 23. The main function of the slot 211 is to provide a stable insertion point, ensuring that the card 23 can be firmly connected to the first socket 21. The slot 211 can be made of a material with certain strength and rigidity, such as metal or plastic. The first end 232 of the card 23 is inserted into the slot 211, and this insertion method allows the card 23 to be stably fixed in the first socket 21, making it less likely to fall off or shake. The card 23 can be made of a material with good mechanical strength, such as metal or plastic.

[0041] In this optional embodiment, the card slot 211 has a space for the first end 232 to rotate. The first end 232 of the card 23 is inserted into the card slot 211. This assembly method is simple and occupies little space. When the plug is inserted into the socket, its pins will first contact the inclined portion of the card 23. As the plug is further inserted, the pins will push the card 23 to rotate around its first end 232 (i.e., the portion inserted into the card slot 211), compressing the elastic element 25. After insertion, the elastic element 25 returns to its original shape, pushing the second end 233 of the card 23 to rotate around the first end 232, so that the card 23 is tilted again relative to the central axis of the first socket 21, so that the insertion through hole 231 of the card 23 engages with the pins of the plug, thereby ensuring that the plug can be firmly fixed in the socket. When it is necessary to unplug the plug, the user only needs to press the adjustment block 24 (as described in the previous claim, button 242) to reduce the tilt angle of the card 23, and the plug can be easily unplugged. In this embodiment, the card 23 can be firmly connected to the first socket 21 by the card slot 211, and it is not easy to fall off or shake, which greatly improves the stability of the socket during use.

[0042] Optionally, such as Figure 1 , Figure 2 As shown, the housing 1 is provided with a second socket 26 and a third socket 27. The socket function module 2 also includes a live wire sleeve 261 or a neutral wire sleeve 271 in the second socket 26, and a neutral wire sleeve 271 or a live wire sleeve 261 connected in the third socket 27.

[0043] Specifically, the socket functional module 2 includes three sockets: a first socket 21 (grounding wire), a second socket 26 (connecting to the live wire socket 261 or the neutral wire socket 271), and a third socket 27 (connecting to the neutral wire socket 271 or the live wire socket 261). These three sockets are arranged in a specific layout on the housing 1 to form a complete three-hole socket. The second socket 26 and the third socket 27 are respectively connected to the live wire socket 261 or the neutral wire socket 271, ensuring that the socket can provide a complete electrical connection to meet the power needs of electrical equipment. At the same time, the materials and manufacturing processes of the sockets comply with electrical safety standards, ensuring the reliability and safety of the socket.

[0044] In this optional embodiment, when the plug of the electrical device is inserted into the socket, the pins of the plug are inserted into the first socket 21, the second socket 26, and the third socket 27 respectively, making contact with the corresponding sockets and establishing an electrical connection. In this way, the electrical device can obtain the required power supply through the socket.

[0045] Optionally, such as Figure 5 As shown, the grounding socket 22 includes a base plate 221. Both ends of the base plate 221 are connected to clamping springs 222. A clamping gap 223 for inserting plug pins is formed between the two clamping springs 222. The lower end of the base plate 221 extends out of the first socket 21 and is provided with a wiring hole 224.

[0046] Specifically, the grounding socket 22 includes a base plate 221, which serves as the basic support structure for the clamping springs 222 and the wiring holes 224. The base plate 221 is made of insulating material to ensure electrical safety. Furthermore, the shape and size of the base plate 221 are carefully designed to fit the overall structure and layout of the socket. Clamping springs 222 are connected to both sides of the base plate 221. These two clamping springs 222 possess a certain degree of elasticity and clamping force. They are made of materials with good elasticity and conductivity, such as copper alloy or stainless steel, providing not only sufficient clamping force but also maintaining good electrical connection performance. When the plug pins are inserted, they can tightly clamp the pins, ensuring the stability and reliability of the electrical connection. Simultaneously, the elastic design of the clamping springs 222 allows the plug to be easily inserted and removed, improving the ease of use of the socket. A clamping gap 223 is formed between the two clamping springs 222 for the insertion of the plug pins. The size of the clamping gap 223 can be adjusted by changing the shape and size of the clamping springs 222. During the design process, the optimal value of the clamping gap 223 can be determined based on the size range of the plug pins and the compatibility requirements of the socket to ensure that the plug pins can be smoothly inserted and clamped by the clamping spring 222. Simultaneously, the clamping gap 223 also has a certain degree of tolerance, accommodating a certain range of pin size variations, thus improving the socket's compatibility and adaptability. The lower end of the base plate 221 extends beyond the first socket 21 and is provided with a wiring hole 224. The wiring hole 224 is used to connect the ground wire, connecting the socket's grounding function to the power system's grounding network. The shape and size of the wiring hole 224 match the specifications of the ground wire to ensure that the ground wire can be securely inserted and fixed in the wiring hole 224. The wiring hole 224 is also equipped with anti-loosening devices, such as screws or clips 14, to prevent the ground wire from loosening or falling off during use. When an electrical device is inserted into the socket, its ground pin contacts the clamping spring 222 of the grounding sleeve 22 and connects to the grounding network through the wiring hole 224, thereby ensuring the electrical device's safe grounding.

[0047] In this optional embodiment, the clamping spring 222 ensures that the plug pins are tightly clamped, preventing electrical connection instability caused by loose pins. This helps improve the operational stability and safety of electrical equipment and further enhances the tightness of the connection between the socket and the plug. Furthermore, the clamping gap 223 has a certain degree of tolerance, accommodating plug pins of different sizes, making the socket suitable for a wider variety of electrical devices and improving its compatibility and practicality. The wiring hole 224 simplifies and facilitates the connection of the ground wire. Users only need to insert the ground wire into the wiring hole 224 and secure it, eliminating the need for complex wiring operations and improving the installation efficiency and safety of the socket. In this embodiment, the live wire socket 261 and the neutral wire socket 271 have the same structure as the ground wire socket 22.

[0048] Optionally, such as Figure 5 , Figure 6 As shown, a limiting block 212 is provided on the inner wall of the first insertion hole 21. The end of the clamping spring piece 222 away from the card 23 abuts against the upper end of the limiting block 212. A limiting groove 213 is provided on the inner wall of the first insertion hole 21. The limiting groove 213 is located at the lower end of the limiting block 212. Outwardly extending snap-fit ​​blocks 2211 are provided on both sides of the substrate 221. The snap-fit ​​blocks 2211 are connected to the limiting groove 213.

[0049] Specifically, a limiting block 212 is provided on the inner wall of the first socket 21, which serves as a guide and positioning element. The limiting block 212 is a block-shaped structure protruding from the inner wall of the first socket 21, and its shape and size match the free end of the clamping spring 222. When the clamping spring 222 is inserted into the first socket 21, its free end naturally abuts against the upper end of the limiting block 212, aligning the clamping gap 223 of the grounding sleeve 22 with the insertion direction of the plug pin, thus restricting the downward sliding of the grounding sleeve 22 relative to the first socket 21, achieving initial positioning and fixation. In addition to the limiting block 212, the inner wall of the first socket 21 is also provided with a limiting groove 213. The limiting groove 213 is located at the lower end of the limiting block 212. The lower end of the substrate 221 has outwardly extending locking blocks 2211 on both sides. When the substrate 221 is inserted into the first socket 21, the two locking blocks 2211 will slide along the lower end of the limiting groove 213 until they abut against the lower end of the limiting groove 213, restricting the ground wire sleeve 22 from sliding upward relative to the first socket 21. At this time, the locking blocks 2211 are firmly locked by the limiting groove 213, thereby preventing the substrate 221 (and the entire ground wire sleeve 22) from moving up and down in the first socket 21.

[0050] In this optional embodiment, the grounding sleeve 22 is firmly fixed in the first socket 21 through the cooperation of the limiting block 212, the limiting groove 213, and the snap-fit ​​block 2211, avoiding loosening or falling off due to improper installation or external force, thus helping to improve the overall stability and safety of the socket. Furthermore, the user only needs to insert the grounding sleeve 22 into the first socket 21, ensuring that the free end of the clamping spring 222 abuts against the upper end of the limiting block 212 and that the snap-fit ​​block 2211 is correctly snapped into the limiting groove 213; no additional tools or complex operating steps are required, making the fixing method simple and convenient. Moreover, because the limiting block 212 and the snap-fit ​​block 2211 have a certain degree of tolerance, this fixing method can be applied to grounding sleeves 22 of different sizes and shapes, enabling the socket to be compatible with more types of grounding sleeves 22, improving the practicality and flexibility of the socket. In this embodiment, the connection and fixing method between the second socket 26 and the live wire socket 261 or the neutral wire socket 271, and the connection and fixing method between the third socket 27 and the neutral wire socket 271 or the live wire socket 261, are consistent with the connection and fixing method between the first socket 21 and the ground wire socket 22.

[0051] Optionally, such as Figure 7 As shown, the socket function module 2 also includes a light guide post 28. The housing 1 has a mounting hole 12 on its upper surface, which extends through both sides of the housing 1. The light guide post 28 is snapped into the mounting hole 12 and is used to indicate the working status of the socket function module 2.

[0052] Specifically, the housing has mounting holes 12 extending through both sides of the housing 1, providing mounting positions for the light guide post 28. The light guide post 28 is fixed in the mounting holes 12 by a snap-fit ​​mechanism, ensuring stability and secureness. When the socket functional module 2 is in different working states, the light or electrical signals generated inside are conducted to the outside of the housing 1 through the light guide post 28, allowing the user to intuitively see the working status of the socket. The light color, brightness, or flashing mode of the light guide post 28 varies according to the specific working state of the socket functional module 2, improving user experience and safety; the material, color, and shape of the light guide post 28 can be selected according to actual needs to enhance the appearance of the socket.

[0053] In this optional embodiment, the light guide column 28 indicates the working status of the socket, allowing users to quickly understand its current status without opening the socket or checking complex indicator lights, thus improving usability and user experience. Furthermore, the light guide column's status indication enables users to promptly identify and address potential safety hazards.

[0054] Optionally, such as Figure 1 As shown, the outer peripheral sidewall of the housing 1 is provided with several buckles 13 at intervals, which are used to connect with the housing of the power distribution unit.

[0055] Specifically, the latch 13 is typically a structure with a certain degree of elasticity, capable of deforming under external force and returning to its original shape after the force is removed. The shape and size of the latch 13 usually match the corresponding structure on the PDU housing to ensure a tight and stable connection. During assembly, the housing 1 of the socket functional module 2 mates with the corresponding structure on the PDU housing via the latch 13. As the mating deepens, the latch 13 deforms under the pressure of the PDU housing until it is fully engaged in the corresponding position on the PDU housing. Once the latch 13 is fully engaged, it returns to its original shape and is firmly fixed to the PDU housing, thus achieving a secure connection between the socket functional module 2 and the PDU.

[0056] In this optional embodiment, the connection between the snap-fit ​​13 and the PDU housing greatly simplifies the assembly process between the socket functional module 2 and the PDU. Users can complete the assembly without using additional tools or fasteners, improving assembly efficiency and convenience.

[0057] Optionally, such as Figure 7 As shown, the housing 1 includes a body 14 and a base 15. The outer peripheral sidewall of the base 15 is provided with a number of locking blocks 151 at intervals. The lower end of the body 14 is provided with a number of slots 141 along the sidewall corresponding to the locking blocks 151. The locking blocks 151 are engaged in the slots 141.

[0058] Specifically, the housing 1 consists of two parts: a body 14 and a base 15. The body 14 is the main part of the socket functional module 2, used to house and protect the internal electrical components and wiring, while the base 15 supports the body 14 and provides a connection interface with the external environment. Locking blocks 151 are disposed on the outer peripheral sidewall of the base 15 and spaced apart to ensure a stable connection. Locking slots 141 are disposed on the lower end of the body 14 along the sidewall, corresponding one-to-one with the locking blocks 151. The shape and size of the locking slots 141 are typically matched to the locking blocks 151 to ensure that the locking blocks 151 can smoothly enter and remain stable. The locking blocks 151 and locking slots 141 are typically made of materials with a certain degree of elasticity and toughness, such as plastic, rubber, or metal, to ensure that the locking blocks 151 can deform and return to their original shape when compressed, while also providing a certain degree of wear resistance and corrosion resistance.

[0059] In this optional embodiment, the number of bases 15 is the same as the number of socket functional modules 2. The main body 14 has mounting spaces corresponding to the bases 15, with multiple bases 15 corresponding to multiple mounting spaces. During assembly, after placing the bases 15 in the appropriate position, the lower end of the main body 14 is aligned with the bases 15 and slowly lowered, allowing the locking blocks 151 to gradually enter the bayonet slot 141. As the main body 14 continues to descend, the locking blocks 151 are deformed by the pressure of the bayonet slot 141 until they are fully engaged in the bayonet slot 141. Once fully engaged, the locking blocks 151 return to their original shape and are firmly fixed within the bayonet slot 141, thus achieving a stable connection between the main body 14 and the bases 15. This connection method between the locking blocks 151 and the bayonet slot 141 greatly simplifies the assembly process between the main body 14 and the bases 15. Furthermore, the housing 1 is configured with two parts: the main body 14 and the bases 15, facilitating production and reducing manufacturing difficulty.

[0060] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A socket, characterized in that, include: A housing (1) is provided inside the housing (1), and at least one socket function module (2) is provided inside the housing (1). The housing (1) is provided with a first socket (21) for inserting the grounding pin of a three-prong plug. The socket function module (2) includes a grounding sleeve (22) and a card (23) disposed in the first socket (21). The card (23) is located above the grounding sleeve (22). The card (23) is provided with a plug-in through hole (231), which is vertically connected to the first socket (21). The two ends of the card (23) are a first end (232) and a second end (233), respectively. The first end (232) is movably connected to the inner wall of the first socket (21), and the second end (233) extends out of the first socket (21). An adjusting block (24) is connected to the plug, which can move up and down relative to the housing (1). When the plug pin is inserted into the first socket (21), the plug pin passes through the plug-in hole (231) and connects to the ground wire sleeve (22). The card (23) is inclined relative to the central axis of the first socket (21) so that the plug-in hole (231) engages with the plug pin. When the plug pin is pulled out from the first socket (21), the adjusting block (24) moves relative to the housing (1) and drives the card (23) to rotate around the first end (232), so that the card (23) is perpendicular to the central axis of the first socket (21), thereby releasing the engagement between the plug-in hole (231) and the plug pin.

2. The socket according to claim 1, characterized in that, The adjustment block (24) has a slot (241) on one side, and the second end (233) extends out of the first insertion hole (21) and is inserted into the slot (241). The upper end of the adjustment block (24) away from the slot (241) extends out of the housing (1) to form a button (242). An elastic element (25) is connected between the lower end of the adjustment block (24) and the bottom of the housing (1).

3. The socket according to claim 2, characterized in that, The bottom of the housing (1) is provided with a guide post (11) corresponding to the elastic element (25), and the lower end of the adjusting block (24) is provided with an upwardly extending mounting groove (243). One end of the elastic element (25) is sleeved on the outer periphery of the guide post (11), and the other end of the elastic element (25) is connected in the mounting groove (243).

4. The socket according to claim 1, characterized in that, The inner wall of the first socket (21) is provided with a slot (211), the slot (211) is located at the upper end of the ground wire sleeve (22), and the first end (232) is inserted into the slot (211).

5. The socket according to any one of claims 1-4, characterized in that, The housing (1) is also provided with a second socket (26) and a third socket (27). The socket function module (2) further includes a live wire sleeve (261) or a neutral wire sleeve (271) disposed in the second socket (26), and a neutral wire sleeve (271) or a live wire sleeve (261) disposed in the third socket (27).

6. The socket according to claim 5, characterized in that, The grounding socket (22) includes a base plate (221), both ends of which are connected to clamping springs (222). A clamping gap (223) for inserting plug pins is formed between the two clamping springs (222). The lower end of the base plate (221) extends out of the first socket (21) and is provided with a wiring hole (224).

7. The socket according to claim 6, characterized in that, A limiting block (212) is provided on the inner wall of the first insertion hole (21). The end of the clamping spring (222) away from the card (23) abuts against the upper end of the limiting block (212). A limiting groove (213) is provided on the inner wall of the first insertion hole (21). The limiting groove (213) is located at the lower end of the limiting block (212). Outwardly extending snap-fit ​​blocks (2211) are provided on both sides of the substrate (221). The snap-fit ​​blocks (2211) are connected to the limiting groove (213).

8. The socket according to claim 5, characterized in that, The socket function module (2) also includes a light guide post (28). The housing (1) is provided with a mounting hole (12). The mounting hole (12) passes through both sides of the housing (1). The light guide post (28) is snapped into the mounting hole (12). The light guide post (28) is used to indicate the working status of the socket function module (2).

9. The socket according to claim 5, characterized in that, The outer peripheral sidewall of the housing (1) is provided with a plurality of buckles (13) at intervals, and the buckles (13) are used to connect to the outer shell of the power distribution unit.

10. The socket according to claim 5, characterized in that, The housing (1) includes a body (14) and a base (15). The outer peripheral sidewall of the base (15) is provided with a plurality of locking blocks (151) at intervals. The lower end of the body (14) is provided with a plurality of slots (141) corresponding to the locking blocks (151) along the sidewall. The locking blocks (151) are engaged in the slots (141).

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