Safety protection device for wall USB charging socket

Abstract

The invention discloses a wall USB charging socket safety protection device, and relates to the technical field of charging socket safety protection, the wall USB charging socket safety protection device comprises a shell and a multi-linkage rotation safety module, and the back surface of the inner wall of the shell is provided with the multi-linkage rotation safety module; the multi-linkage rotating safety module comprises an inserting rod, a slope pushing piece and a linkage gear. By installing the multi-linkage rotating safety module, a plugging protection function is realized, the problem of electric shock caused by mistakenly touching and plugging the socket by children is solved, the safety protection level of the charging socket is improved, meanwhile, automatic reset is utilized, manual operation is not needed, and user experience is natural, simple and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of charging socket safety protection, and in particular to a wall USB charging socket safety protection device. Background Art

[0002] With the increasing popularity of portable electronic devices like smartphones and tablets, demand for wall-mounted USB charging sockets in homes and offices is rapidly increasing. Conventional USB sockets typically use simple physical covers or single-sided spring clip protection mechanisms, failing to provide dynamic closure protection for the socket channel, leaving the socket exposed for extended periods. If children accidentally insert metal objects or foreign objects, they can easily touch the conductive parts inside, posing a significant risk of electric shock and short circuits.

[0003] Patent CN102394421B discloses a safety protection device for a vehicle-mounted charging socket. The above patent ensures that the socket end of the socket body is not easily exposed when not in use, which can effectively prevent electric shock and provide safety protection for the user; when the vehicle-mounted socket needs to be used, the user only needs to release the locking mechanism on the socket body and the socket cover.

[0004] The above patented components are technologically mature, low-cost, and reliable in operation; they are simple in structure and easy to operate, but they are prone to accidents where children may accidentally touch the sockets, creating a dangerous situation.

[0005] To this end, the present application proposes a safety protection device for a wall USB charging socket that can achieve mechanical linkage closure and mandatory protection. Summary of the Invention

[0006] The purpose of the present invention is to provide a safety protection device for a wall USB charging socket to solve the technical problem raised in the above background technology that when children accidentally insert metal objects or foreign objects, they are very likely to touch the internal conductive parts, posing a great risk of electric shock and short circuit.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a wall USB charging socket safety protection device, comprising a housing and a multi-linkage rotating safety module, wherein the multi-linkage rotating safety module is installed on the back of the inner wall of the housing; The multi-linked rotary safety module includes: an inserting rod, a bevel push piece and a linkage gear; Two groups of linkage shafts are fixedly installed on the back side of the inner wall of the shell, and linkage gears are fixedly sleeved on the outer wall of the linkage shaft, and the outer walls of the two groups of linkage gears are meshed, and an insertion rod is fixedly sleeved on the outer wall of the linkage shaft, and an inclined push piece is fixedly installed on the outer wall of the insertion rod, and a tension spring is surrounded by the outer wall of the linkage shaft, and the other end of the tension spring is fixed to the side of the inner wall of the shell, a blocking rod is fixedly installed on the side of the outer wall of the insertion rod, and a pin seat is fixedly installed on the back side of the inner wall of the shell, and a plug-in channel is opened in the shell, and the pin seat is located at the far end of the plug-in channel.

[0008] Preferably, a self-recovery trip module is fixedly installed on the back of the inner wall of the housing, and the self-recovery trip module is used to automatically cut off the power supply when the socket is overheated or overcurrent occurs; The self-recovery trip module includes: a shape memory alloy sheet, an energized slider and an interface block; A shape memory alloy sheet is fixedly installed on the back of the inner wall of the shell, a base plate is fixedly installed on the front of the outer wall of the shape memory alloy sheet, a power-on slider is fixedly installed on the front of the outer wall of the base plate, an interface block is fixedly installed on the back of the outer wall of the pin seat through a power cord, and the power-on slider is connected to the cable interface on the wall through the power cord.

[0009] Preferably, a sliding track groove is fixedly installed on the side of the inner wall of the shell, and the two sides of the bottom plate are clamped in the sliding track groove to slide. A self-restoring spring is fixedly installed on the inner wall of the shell, and one end of the self-restoring spring is fixedly connected to the outer wall of the bottom plate, and the shape memory alloy sheet is connected to the pin seat through the power cord.

[0010] Preferably, the outer wall of the housing is connected to a rotating plug cover by a double action insertion maze confirmation module; The double action insertion maze confirmation module comprises: a rotating plug cover, a first sleeve and a second sleeve; A second sleeve is fixedly installed on the front side of the outer wall of the shell. The outer wall of the second sleeve is movably sleeved with the first sleeve. A rotating plug cover is fixedly installed on the front side of the outer wall of the first sleeve.

[0011] Preferably, an insertion hole is provided on the outer wall of the second sleeve, and a limiting rod is fixedly installed on the back side of the outer wall of the first sleeve, and the limiting rod cooperates with the insertion hole.

[0012] Preferably, an electromagnetic lock control module is fixedly installed on the side of the inner wall of the shell; The electromagnetic lock control module includes: a microcontroller, an electromagnetic coil and a lock pin; A microcontroller is fixedly installed on the side of the inner wall of the shell, and the microcontroller is connected to the pin socket through a power cord. An electromagnetic coil is fixedly installed in the microcontroller through a power signal line. A lock pin is fixedly installed on the side of the outer wall of the microcontroller through a magnetic pole channel, and a resistance spring is surrounded by the side of the outer wall of the lock pin. One end of the resistance spring is fixedly installed in the magnetic pole channel, and the other end is fixedly installed on the head of the lock pin.

[0013] Preferably, a limit lock hole is provided on the side surface of the outer wall of the insertion rod, and the lock pin head can be inserted into the limit lock hole.

[0014] Preferably, a temperature sensor is fixedly mounted on the top of the inner wall of the shell, an alarm is fixedly mounted on the top of the outer wall of the shell, and the temperature sensor is connected to the alarm via a signal line, and the temperature sensor is connected to the microcontroller via a data signal line.

[0015] Preferably, a heat dissipation module is fixedly mounted on the front of the inner wall of the housing; The heat dissipation module includes: a first micro motor, a first rotating shaft and a heat dissipation fan; A first micromotor is fixedly installed on the front of the inner wall of the shell, and the first micromotor is connected to the temperature sensor through a data signal line. A first rotating shaft is fixedly installed on the front of the outer wall of the first micromotor, and a cooling fan is fixedly sleeved on the outer wall of the first rotating shaft.

[0016] Preferably, a ventilation window is fixedly installed on the front of the outer wall of the shell, a mounting frame is fixedly installed on the back of the shell, a movable hinge is fixedly installed on the top of the outer wall of the shell, and a protective cover is fixedly installed on the front of the outer wall of the movable hinge.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention implements a plug-in protection function by installing a multi-link rotating safety module, solving the problem of children accidentally touching the socket and getting an electric shock, thus improving the safety protection level of the charging socket. At the same time, it uses automatic reset without manual operation, providing a natural and simple user experience. 2. The present invention realizes the automatic overheat and overcurrent power-off function by installing a self-recovery trip module, solves the problem of fault-live and accidental contact danger, and improves the level of safety protection; 3. The present invention realizes the double insertion action protection function by installing a double action insertion maze confirmation module, improves the security level, and realizes highly personalized and dynamic safety control; 4. The present invention realizes the active locking function by installing an electromagnetic lock control module, and at the same time realizes the remote switch control function, so that the socket has a higher level of security management and control capabilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the front structure of the present invention; Figure 3 This is a structural diagram of the multi-linked rotation safety module of the present invention; Figure 4 This is a structural diagram of the self-recovery trip module of the present invention; Figure 5This is a schematic structural diagram of the dual-action insertion maze confirmation module of the present invention; Figure 6 This is a schematic diagram of the first sleeve structure of the present invention; Figure 7 This is a schematic structural diagram of the electromagnetic lock control module of the present invention; Figure 8 It is a schematic structural diagram of the heat dissipation module of the present invention.

[0019] In the figure: 1. outer shell; 2. movable hinge; 3. protective cover; 4. rotating plug cover; 5. ventilation window; 6. alarm; 7. mounting bracket; 8. plug rod; 9. inclined push piece; 10. blocking rod; 11. linkage shaft; 12. linkage gear; 13. pull wire spring; 14. pin holder; 15. plug-in channel; 16. interface block; 17. power slider; 18. bottom plate; 19. shape memory alloy sheet; 20. sliding track groove; 21. self-restoring spring; 22. first sleeve; 23. second sleeve; 24. limit rod; 25. insertion hole; 26. microcontroller; 27. electromagnetic coil; 28. lock pin; 29. resistance spring; 30. limit lock hole; 31. temperature sensor; 32. first micromotor; 33. first shaft; 34. cooling fan. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0023] See also Figure 1 、 Figure 2 and Figure 3 , an embodiment provided by the present invention: a wall USB charging socket safety protection device, comprising a shell 1 and a multi-linkage rotation safety module, wherein the multi-linkage rotation safety module is installed on the back of the inner wall of the shell 1; The multi-linked rotation safety module includes: an inserting rod 8, a bevel push piece 9 and a linkage gear 12; Two groups of linkage shafts 11 are fixedly installed on the back of the inner wall of the shell 1, and the outer wall of the linkage shaft 11 is fixedly sleeved with a linkage gear 12, and the outer walls of the two groups of linkage gears 12 are meshed, and the outer wall of the linkage shaft 11 is fixedly sleeved with an insertion rod 8, and the outer wall of the insertion rod 8 is fixedly installed with an inclined push piece 9, and the outer wall of the linkage shaft 11 is surrounded by a tension spring 13, and the other end of the tension spring 13 is fixed to the side of the inner wall of the shell 1, and a blocking rod 10 is fixedly installed on the side of the outer wall of the insertion rod 8. A pin seat 14 is fixedly installed on the back of the inner wall of the shell 1, and a plug-in channel 15 is opened in the shell 1, and the pin seat 14 is located at the far end of the plug-in channel 15; Furthermore, when the plug is not inserted, the plug rod 8 keeps the baffle rods 10 crossed with each other under the tightening action of the tension spring 13, and the crossed baffle rods 10 block the insertion channel 15; when the plug is correctly inserted into the insertion channel 15, the bosses on both sides of the plug push the inclined push piece 9, applying a lateral thrust to the inclined push piece 9, and after being subjected to the lateral thrust, the inclined push piece 9 converts the lateral force into an axial force that drives the plug rod 8 to rotate, the inclined push piece 9 drives the plug rod 8 to rotate, the plug rod 8 drives the linkage shaft 11 to rotate, the linkage shaft 11 drives the linkage gear 12 to rotate, and the linkage gears 12 engage with each other to ensure that the plug rods 8 on both sides are synchronized. When the plug is pulled out, the wire spring 13 resets the plug 8, and drives the baffle 10 to cross again, thus closing the plug channel 15. This greatly improves the ability to prevent children from inserting the plug by mistake and foreign objects from being inserted. At the same time, the spring automatically resets the plug without manual operation, and the user experience is natural and simple, which solves the contradiction between the durability and ease of operation of traditional protective doors.

[0024] See also Figure 3 、 Figure 4 、 Figure 7 and Figure 8 The present invention provides an embodiment of a wall USB charging socket safety protection device, wherein a self-recovery trip module is fixedly installed on the back of the inner wall of the housing 1, and the self-recovery trip module is used to automatically cut off the power supply when the socket is overheated or overcurrent occurs; The self-recovery trip module includes: a shape memory alloy sheet 19, an energized slider 17 and an interface block 16; A shape memory alloy sheet 19 is fixedly mounted on the back of the inner wall of the housing 1, a bottom plate 18 is fixedly mounted on the front of the outer wall of the shape memory alloy sheet 19, a power slider 17 is fixedly mounted on the front of the outer wall of the bottom plate 18, an interface block 16 is fixedly mounted on the back of the outer wall of the pin holder 14 via a power cord, and the power slider 17 is connected to the wall cable interface via the power cord; The inner wall side of the housing 1 is fixedly mounted with a sliding track groove 20, and the two sides of the bottom plate 18 are clamped and slide in the sliding track groove 20. A self-restoring spring 21 is fixedly mounted on the inner wall of the housing 1, and one end of the self-restoring spring 21 is fixedly connected to the outer wall of the bottom plate 18. The shape memory alloy sheet 19 is connected to the pin seat 14 through the power cord; Furthermore, when a short circuit occurs inside the pin socket 14 or a local overcurrent accumulates due to excessive load, the shape memory alloy sheet 19 deforms and contracts due to the heat, and the shape memory alloy sheet 19 pulls the bottom plate 18 to slide along the sliding track groove 20. The bottom plate 18 drives the power slider 17 to slide, and the bottom plate 18 pulls the self-restoring spring 21 to extend and deform. At this time, the power slider 17 automatically disengages from the interface block 16, and switches from the initial power-on state connected to the interface block 16 to the disconnected state. The pin socket 14 no longer supplies power to the plug or the metal object that is inserted by mistake, thereby realizing false touch protection and reducing the risk of electric shock. When preventing accidental touch or circuit repair, the shape memory alloy sheet 19 cools down and returns to its original shape, and the stretched self-restoring spring 21 contracts to pull the bottom plate 18 to slide in the sliding track groove 20, pulling the power-on slider 17 on the bottom plate 18 to re-contact the interface block 16 for power supply, thus realizing the self-restoring power supply function after overcurrent and overheating; Unlike traditional one-time thermal fuses or those that rely solely on software to cut off power, this device uses a self-recovering mechanical tripping method that not only responds to overcurrent or overheating protection circuits in real time, but also automatically closes after the fault is eliminated, eliminating the need for component replacement. Due to its mechanical properties, it responds quickly and reliably without the risk of electronic malfunction. In combination with an electromagnetic locking module, it ensures that when a fault occurs, not only is the power cut off, but the socket is also physically locked to prevent live contact.

[0025] See also Figure 5 and Figure 6, an embodiment provided by the present invention: a wall USB charging socket safety protection device, the outer wall of the shell 1 is connected with a rotating plug cover 4 through a double action insertion maze confirmation module; The double action insertion maze confirmation module comprises: a rotating plug cover 4, a first sleeve 22 and a second sleeve 23; A second sleeve 23 is fixedly mounted on the front of the outer wall of the housing 1. The outer wall of the second sleeve 23 is movably mounted on the first sleeve 22. A rotating plug cover 4 is fixedly mounted on the outer wall of the first sleeve 22. An insertion hole 25 is formed on the outer wall of the second sleeve 23, and a limiting rod 24 is fixedly installed on the back of the outer wall of the first sleeve 22, and the limiting rod 24 cooperates with the insertion hole 25; Furthermore, when the charging socket needs to be used, the rotating cover 4 is rotated, and the rotating cover 4 drives the first sleeve 22 to rotate around the second sleeve 23. After adjusting to a suitable position, the rotating cover 4 is pushed inward, and the rotating cover 4 drives the first sleeve 22 to feed on the second sleeve 23, and the limiting rod 24 on the rotating cover 4 is pushed and inserted into the insertion hole 25 on the housing 1 to form a mating lock. At this time, the entrance of the rotating cover 4 is aligned with the plug channel 15 to ensure that the plug can be accurately inserted into the socket; After use, pull the rotating cover 4 outward and rotate the rotating cover 4. The rotating cover 4 and the plug-in channel 15 in the shell 1 cannot form a natural and effective alignment, thereby realizing the child-proofing function. It is difficult for ordinary children to understand or perform this double operation, thereby further preventing accidental insertion.

[0026] See also Figure 2 、 Figure 7 and Figure 8 , an embodiment provided by the present invention: a wall USB charging socket safety protection device, wherein an electromagnetic lock control module is fixedly installed on the inner wall side of the shell 1; The electromagnetic lock control module includes: a microcontroller 26, an electromagnetic coil 27 and a lock pin 28; A microcontroller 26 is fixedly mounted on the side of the inner wall of the housing 1. The microcontroller 26 is connected to the pin socket 14 via a power cord. An electromagnetic coil 27 is fixedly mounted inside the microcontroller 26 via a power signal line. A lock pin 28 is fixedly mounted on the side of the outer wall of the microcontroller 26 through a magnetic pole channel. A resistance spring 29 surrounds the outer wall of the lock pin 28. One end of the resistance spring 29 is fixedly mounted in the magnetic pole channel, and the other end is fixedly mounted on the head of the lock pin 28. The outer wall side of the insertion rod 8 is provided with a limit lock hole 30, and the head of the lock pin 28 can be inserted into the limit lock hole 30; the temperature sensor 31 is connected to the microcontroller 26 through a data signal line; Furthermore, the microcontroller 26 receives abnormal temperature data from the temperature sensor 31, identifies the circuit load status of the pin socket 14 through the power cord, or transmits an active switch command through remote control software. When there is no overheating or overcurrent, the microcontroller 26 activates the electromagnetic coil 27, causing the electromagnetic coil 27 to generate a magnetic field that draws the lock pin 28 into the microcontroller 26 through the magnetic pole channel, releasing the lock pin 28's limiting effect on the plug rod 8, allowing the plug rod 8 to rotate, thereby allowing the charging switch to be turned on. When an overheating or overcurrent condition occurs, the microcontroller 26 is controlled to actively cut off power. The lock pin 28 is driven to extend during the process of the resistance spring 29 recovering its deformation and inserts into the limit lock hole 30 on the plug rod 8, thereby locking the plug rod 8. This realizes the function of actively allowing plug insertion and the active locking protection function when an abnormal insertion occurs. Unlike ordinary socket overload protection, this design can actively lock mechanically when an abnormality is detected to prevent further accidents. In addition, by embedding a network module or mobile phone app, intelligent functions such as remote switch control and timed power off can be realized, giving the socket a higher level of safety management capabilities.

[0027] See also Figure 1 、 Figure 2 and Figure 8 , an embodiment of the present invention provides: a wall USB charging socket safety protection device, wherein a temperature sensor 31 is fixedly mounted on the top of the inner wall of the shell 1, and an alarm 6 is fixedly mounted on the top of the outer wall of the shell 1, and the temperature sensor 31 is connected to the alarm 6 via a signal line, and the temperature sensor 31 is connected to the microcontroller 26 via a data signal line; A heat dissipation module is fixedly mounted on the front side of the inner wall of the housing 1; The heat dissipation module includes: a first micro motor 32, a first rotating shaft 33 and a heat dissipation fan 34; A first micromotor 32 is fixedly mounted on the front of the inner wall of the housing 1. The first micromotor 32 is connected to the temperature sensor 31 via a data signal line. A first rotating shaft 33 is fixedly mounted on the front of the outer wall of the first micromotor 32. A cooling fan 34 is fixedly mounted on the outer wall of the first rotating shaft 33. The outer wall of the housing 1 is fixedly mounted with a ventilation window 5 on the front side, a mounting bracket 7 on the back side, a movable hinge 2 on the top side of the outer wall of the housing 1, and a protective cover 3 on the front side of the outer wall of the movable hinge 2; Furthermore, the temperature sensor 31 monitors the temperature data inside the shell 1 in real time and transmits the data to the alarm 6. When the temperature data received in the alarm 6 exceeds the upper threshold, an alarm sound and light are emitted. When the temperature sensor 31 detects an abnormal temperature, a heat dissipation and cooling signal is sent to the first micromotor 32. The first micromotor 32 starts, and the first micromotor 32 drives the first rotating shaft 33 to rotate. The first rotating shaft 33 drives the cooling fan 34 to rotate. The cooling fan 34 blows out the heat in the shell 1 through the ventilation window 5 to prevent the electronic components from being damaged due to long-term high temperature in the shell 1 and the risk of abnormal electric shock. The movable hinge 2 connects the shell 1 and the protective cover 3. The protective cover 3 plays a role in protecting the shell 1 from moisture and dust and plays a role in mechanical protection to prevent children from touching it.

[0028] Working Principle: The dual-action insertion maze confirmation module and the multi-linked rotation safety module provide insertion protection to prevent children from accidentally inserting their fingers or metal objects into the socket. The electromagnetic lock control module is used to actively lock and release the multi-linked rotary safety module. It can be actively locked according to the usage needs and safety protection requirements to further prevent children from accidentally inserting objects and causing electric shock risks. When an incorrect insertion or current overload occurs, the self-recovery trip module will automatically cut off the power to prevent further damage or the danger of live repair.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A wall USB charging socket safety protection device, comprising a housing (1) and a multi-linked rotating safety module, characterized in that: A multi-linked rotation safety module is installed on the back of the inner wall of the housing (1); The multi-linked rotation safety module comprises: an inserting rod (8), an inclined push piece (9) and a linkage gear (12); Two groups of linkage shafts (11) are fixedly mounted on the back of the inner wall of the shell (1), linkage gears (12) are fixedly mounted on the outer wall of the linkage shaft (11), and the outer walls of the two groups of linkage gears (12) are meshed, the outer wall of the linkage shaft (11) is fixedly mounted with an insertion rod (8), an inclined push piece (9) is fixedly mounted on the outer wall of the insertion rod (8), a tension spring (13) is surrounded by the outer wall of the linkage shaft (11), and the other end of the tension spring (13) is fixed to the side of the inner wall of the shell (1), a blocking rod (10) is fixedly mounted on the side of the outer wall of the insertion rod (8), a pin seat (14) is fixedly mounted on the back of the inner wall of the shell (1), a plug-in channel (15) is provided in the shell (1), and the pin seat (14) is located at the far end of the plug-in channel (15).

2. A wall USB charging socket safety protection device according to claim 1, characterized in that: A self-recovery trip module is fixedly mounted on the back of the inner wall of the housing (1), and the self-recovery trip module is used to automatically cut off the power supply when the socket is overheated or overcurrent occurs; The self-recovery tripping module comprises: a shape memory alloy sheet (19), an energized slider (17) and an interface block (16); A shape memory alloy sheet (19) is fixedly mounted on the back of the inner wall of the housing (1), a base plate (18) is fixedly mounted on the front of the outer wall of the shape memory alloy sheet (19), a power-on slider (17) is fixedly mounted on the front of the outer wall of the base plate (18), an interface block (16) is fixedly mounted on the back of the outer wall of the pin socket (14) via a power cord, and the power-on slider (17) is connected to a cable interface on the wall via the power cord.

3. A wall USB charging socket safety protection device according to claim 2, characterized in that: A sliding track groove (20) is fixedly installed on the side of the inner wall of the shell (1), and both sides of the bottom plate (18) are clamped in the sliding track groove (20) to slide. A self-restoring spring (21) is fixedly installed on the inner wall of the shell (1), and one end of the self-restoring spring (21) is fixedly connected to the outer wall of the bottom plate (18). The shape memory alloy sheet (19) is connected to the pin seat (14) through a power cord.

4. A wall USB charging socket safety protection device according to claim 1, characterized in that: The outer wall of the housing (1) is connected to a rotating plug cover (4) by inserting a maze confirmation module through a double action; The double-action insertion maze confirmation module comprises: a rotating plug cover (4), a first sleeve (22) and a second sleeve (23); A second sleeve (23) is fixedly mounted on the front side of the outer wall of the housing (1); the outer wall of the second sleeve (23) is movably mounted on the first sleeve (22); and a rotating plug cover (4) is fixedly mounted on the front side of the outer wall of the first sleeve (22).

5. A wall USB charging socket safety protection device according to claim 4, characterized in that: An insertion hole (25) is provided on the outer wall of the second sleeve (23), and a limiting rod (24) is fixedly mounted on the back of the outer wall of the first sleeve (22), and the limiting rod (24) and the insertion hole (25) cooperate with each other.

6. A wall USB charging socket safety protection device according to claim 1, characterized in that: An electromagnetic lock control module is fixedly mounted on the inner wall side of the housing (1); The electromagnetic lock control module includes: a microcontroller (26), an electromagnetic coil (27) and a lock pin (28); A microcontroller (26) is fixedly mounted on the side of the inner wall of the housing (1), the microcontroller (26) is connected to the pin seat (14) via a power line, an electromagnetic coil (27) is fixedly mounted in the microcontroller (26) via a power signal line, a lock pin (28) is fixedly mounted on the side of the outer wall of the microcontroller (26) via a magnetic pole channel, and a resistance spring (29) is surrounded by the side of the outer wall of the lock pin (28), one end of the resistance spring (29) is fixedly mounted in the magnetic pole channel, and the other end is fixedly mounted on the head of the lock pin (28).

7. A wall USB charging socket safety protection device according to claim 6, characterized in that: A limit lock hole (30) is provided on the side surface of the outer wall of the insertion rod (8), and the head of the lock pin (28) can be inserted into the limit lock hole (30).

8. The safety protection device for a wall USB charging socket according to claim 1, characterized in that: A temperature sensor (31) is fixedly mounted on the top of the inner wall of the housing (1), and an alarm (6) is fixedly mounted on the top of the outer wall of the housing (1). The temperature sensor (31) and the alarm (6) are connected via a signal line, and the temperature sensor (31) is connected to the microcontroller (26) via a data signal line.

9. A wall USB charging socket safety protection device according to claim 1, characterized in that: A heat dissipation module is fixedly mounted on the front side of the inner wall of the housing (1); The heat dissipation module comprises: a first micromotor (32), a first rotating shaft (33) and a heat dissipation fan (34); A first micromotor (32) is fixedly mounted on the front of the inner wall of the housing (1), and the first micromotor (32) is connected to the temperature sensor (31) via a data signal line. A first rotating shaft (33) is fixedly mounted on the front of the outer wall of the first micromotor (32), and a cooling fan (34) is fixedly mounted on the outer wall of the first rotating shaft (33).

10. A wall USB charging socket safety protection device according to claim 1, characterized in that: A ventilation window (5) is fixedly mounted on the front of the outer wall of the shell (1), a mounting frame (7) is fixedly mounted on the back of the shell (1), a movable hinge (2) is fixedly mounted on the top of the outer wall of the shell (1), and a protective cover (3) is fixedly mounted on the front of the outer wall of the movable hinge (2).

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