Anti-falling charging plug

Abstract

The invention relates to the technical field of charging equipment, and discloses an anti-falling charging plug, which comprises a shell, a cover body, an insertion piece assembly and a supporting plate, and is characterized in that the cover body is connected with the shell, and an insertion piece hole is formed in the cover body; the insertion piece assembly is arranged in the shell and comprises a base and a conductive insertion piece fixed to the base, and the conductive insertion piece extends out of the insertion piece hole in the first direction; the supporting plate is slidably connected to the shell in the second direction and located below the cover body, the outer side face of the supporting plate is flush with the outer side face of the cover body, and the supporting plate can extend to the position below the shell in the second direction. The gravity center of the charging plug can be lowered by arranging the elongated supporting plate, the fulcrum position where the charging plug abuts against a socket when the charging plug loosens is lowered, the charging plug can stop inclining only by rotating a small angle when the charging plug is inserted into an aged jack, and therefore the loosening degree of the charging plug is reduced, the charging plug is effectively prevented from falling off, and the service life of the charging plug is prolonged. The connection reliability of the charging plug and the socket is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of charging equipment, and in particular to an anti-falling charging plug. Background Art

[0002] Mobile phones and other electronic devices need to be charged via a charging plug to ensure normal use. However, in some scenarios, such as long-distance travel, although there are sockets for charging on high-speed trains or sleeper trains, these sockets are frequently used and have a certain degree of aging, causing the reeds inside the sockets to become loose. In addition, with the development of today's super-fast charging technology, the weight of charging plugs is increasing. As a result, ordinary fast-charging USB charging plugs are easily loosened when inserted into such sockets due to insufficient clamping force and friction. They fall off with the slightest touch, or simply cannot be inserted and fall off when inserted, resulting in a failure to charge.

[0003] Therefore, there is an urgent need for an anti-falling charging plug to solve the above technical problems. Summary of the Invention

[0004] Based on the above, the purpose of the present invention is to provide a charging plug that prevents it from falling off, which can effectively reduce the looseness when the charging plug is connected to the socket, prevent the charging plug from falling off, and improve the connection reliability between the charging plug and the socket.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] An anti-drop charging plug, comprising:

[0007] case;

[0008] A cover body connected to the shell, and provided with an insert hole;

[0009] an insert assembly disposed in the housing, the insert assembly comprising a base and a conductive insert fixed to the base, the conductive insert extending from the insert hole along a first direction;

[0010] A support plate is slidably connected to the shell along the second direction, the support plate is located below the cover body, and the outer side surface of the support plate is flush with the outer side surface of the cover body; the support plate has an extended position extending to the bottom of the shell along the second direction and a retracted position retracted into the shell along the second direction.

[0011] In some possible implementations, a slide groove is provided on the shell, and the slide groove passes through the bottom end of the shell. Sliding parts are provided on both sides of the support plate, and the sliding parts are slidably connected in the slide groove.

[0012] In some possible embodiments, a blocking portion is provided at the top of the support plate, and a stop block is provided at the bottom of the slide groove. When the support plate slides to the bottom of the slide groove along the second direction, the blocking portion engages with the stop block.

[0013] In some possible implementations, the sliding portion is provided with a limiting protrusion, and the limiting protrusion is interference-fitted with an inner wall of the sliding groove to limit the sliding of the support plate.

[0014] In some possible implementations, anti-slip grooves are provided on the outer side of the support plate.

[0015] In some possible implementations, the first direction is a horizontal direction, and the second direction is a vertical direction.

[0016] In some possible embodiments, the shell is provided with a accommodating cavity, the insert assembly is located in the accommodating cavity, and the cover body is provided at the opening of the accommodating cavity; the cover body is provided with a connecting plate extending into the accommodating cavity along a first direction, and the connecting plate abuts against the inner wall of the accommodating cavity.

[0017] In some possible embodiments, the slide groove is located below the accommodating cavity and is communicated with the accommodating cavity; the bottom of the cover body is sealed at the top of the slide groove, and the bottom of the cover body is used to limit the maximum upward sliding position of the support plate.

[0018] In some possible implementations, one of the inner wall of the accommodating cavity and the outer wall of the connecting plate is provided with a slot, and the other is provided with a buckle, and the cover and the shell are connected through the cooperation of the slot and the buckle.

[0019] In some possible implementations, a conductive terminal is provided on the base, a conductive spring is provided in the accommodating cavity, a relief opening is provided on the connecting plate, and the conductive terminal passes through the relief opening to be electrically connected to the conductive spring.

[0020] Beneficial effects of the present invention:

[0021] The anti-falling charging plug provided by the present invention is adapted to both normal and aged sockets by providing a support plate that can slide along the second direction on the shell. When used in a normal socket, the charging plug is directly connected to the socket port through the insert assembly, and the support plate is in a retracted position, which saves space and is convenient to use. When used in an aged socket, the support plate is slid downward to the bottom of the shell. At this time, the support plate is in an extended position. The extended support plate can lower the center of gravity of the charging plug and reduce the fulcrum position of the charging plug abutting the socket when the charging plug is loose, so that the charging plug only needs to rotate a very small angle to stop tilting, reducing the degree of looseness of the charging plug and effectively preventing the charging plug from falling off. Moreover, the support plate is located below the cover body, and the outer side surface of the support plate is flush with the outer side surface of the cover body, ensuring that during the process of plugging the charging plug into the socket, the cover body and the support plate can both abut against the surface of the socket, thereby improving the connection stability of the charging plug and the socket, and being more conducive to reducing the fulcrum position of the charging plug abutting the socket when the charging plug is loose. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of the anti-dropout charging plug provided by an embodiment of the present invention (when the anti-dropout structure does not extend out of the insertion hole and the support plate does not extend out of the slide slot);

[0023] Figure 2 This is a schematic structural diagram of an anti-dropout charging plug (when the anti-dropout structure extends out of the insert hole and the support plate extends out of the slide slot) provided by an embodiment of the present invention;

[0024] Figure 3 This is an exploded view of an anti-drop charging plug provided by an embodiment of the present invention;

[0025] Figure 4 This is a schematic structural diagram of a housing provided by an embodiment of the present invention from a first angle;

[0026] Figure 5 is a schematic structural diagram of a housing provided by an embodiment of the present invention from a second angle;

[0027] Figure 6 is a structural schematic diagram of a fixing member provided by an embodiment of the present invention;

[0028] Figure 7 This is a schematic structural diagram of a cover body provided by an embodiment of the present invention from a first angle;

[0029] Figure 8 This is a schematic diagram of the second angle structure of the cover provided by an embodiment of the present invention;

[0030] Figure 9 1 is a schematic structural diagram of a plug-in assembly provided in an embodiment of the present invention;

[0031] Figure 10 This is an assembly diagram of the insert assembly and the cover body provided in an embodiment of the present invention;

[0032] Figure 11 1 is a schematic diagram of the first angle structure of the support plate provided by an embodiment of the present invention;

[0033] Figure 12 is a schematic diagram of the second angle structure of the support plate provided by an embodiment of the present invention;

[0034] Figure 13 This is a schematic diagram of a conventional charging plug being plugged into a socket;

[0035] Figure 14 This is a schematic diagram of the process of a charging plug falling off from a socket in the prior art;

[0036] Figure 15 It is a schematic diagram of a charging plug in the prior art rotating around a fulcrum to a stop tilting position;

[0037] Figure 16 This is a schematic diagram of the connection between a charging plug and a socket with an anti-drop structure provided by an embodiment of the present invention;

[0038] Figure 17 Schematic diagram of the connection between a charging plug with a support plate and a socket provided by an embodiment of the present invention;

[0039] Figure 18 Schematic diagram of a charging plug with a support plate provided by an embodiment of the present invention rotating around a fulcrum to a stop tilting position.

[0040] In the picture:

[0041] 1. Housing; 11. Accommodating cavity; 12. Fixing member; 121. First connecting arm; 122. Second connecting arm; 123. First fixing tooth; 124. Pick; 14. Slide; 141. Stopper; 15. Slot; 16. Conductive spring; 17. USB port;

[0042] 2. Cover; 21. Insert hole; 22. Pick hole; 23. Connecting plate; 231. Avoidance; 24. Buckle; 25. Slide rail; 26. Expansion joint;

[0043] 3. Insert assembly; 31. Base; 311. Slider; 312. Second fixed tooth; 313. Conductive terminal; 32. Conductive insert; 33. Anti-slip structure;

[0044] 4. Support plate; 41. Sliding portion; 42. Blocking portion; 43. Anti-slip groove; 44. Limiting protrusion;

[0045] 100', charging plug; 200', socket; 300', fulcrum; 3', plug assembly;

[0046] 100, charging plug; 200, socket; 300, fulcrum. DETAILED DESCRIPTION

[0047] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0048] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0049] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0050] In the description of the present invention, terms such as "upper," "lower," "left," and "right" are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. 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. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0051] An embodiment of the present invention provides a charging plug that prevents falling off, which is used to charge electronic products such as mobile phones, tablets, Bluetooth headsets, and handheld fans, so as to solve the problem in the prior art that the charging plug is easily loosened or falls off when plugged into the socket.

[0052] like Figures 1 to 12As shown, the anti-falling charging plug provided by the embodiment of the present invention includes a shell 1, a cover body 2 and a plug assembly 3. A accommodating cavity 11 is provided near the front side of the shell 1, and the cover body 2 is provided at the opening of the accommodating cavity 11, and the cover body 2 is detachably connected to the shell 1. Two plug holes 21 are provided on the cover body 2. The plug assembly 3 is located in the accommodating cavity 11, and the plug assembly 3 includes a base 31 and two conductive plugs 32 fixed on the base 31. The two conductive plugs 32 extend from the two plug holes 21 of the cover body 2 respectively, and are used to connect with the socket on the socket to guide current. The plug assembly 3 can slide in the shell 1 along the first direction to drive the conductive plug 32 forward or backward along the first direction. The first direction of the present invention is the horizontal direction, specifically referring to the front and back direction of the shell 1, that is, the extension direction of the conductive plug 32.

[0053] Optionally, in some embodiments, the cover 2 has a square structure and is provided with connecting plates 23 extending along a first direction into the accommodating cavity 11 on all four sides. The connecting plates 23 are tightly connected to the inner wall of the accommodating cavity 11 to improve the tightness of the connection between the cover 2 and the housing 1. To facilitate the installation of the cover 2, expansion gaps 26 are provided between each adjacent connecting plate 23 among the four connecting plates 23. This provides a certain amount of deformation space for the connecting plates 23, allowing the cover 2 to be smoothly installed in the housing 1. Furthermore, in some embodiments, the inner wall of the housing 1 is provided with a slot 15, and the outer wall of the connecting plate 23 is provided with a buckle 24. The cover 2 and the housing 1 are detachably connected through the snap fit of the buckle 24 and the slot 15, which facilitates assembly and ensures a reliable connection. Of course, in other embodiments, a buckle can also be provided on the housing 1 and a slot can be provided on the connecting plate 23 to similarly achieve a snap-fit ​​fixation between the housing 1 and the cover 2. Furthermore, in some embodiments, slide rails 25 extending in the first direction are provided on both sides of the cover 2, and sliders 311 are provided on both sides of the base 31. The sliders 311 are slidably connected to the slide rails 25. This structure enables smooth sliding of the insert assembly 3 within the housing 1, improving its movement accuracy. Specifically, the slide rails 25 are respectively provided on the inner walls of the connecting plate 23 on both sides.

[0054] In some embodiments, the charging plug further comprises a support plate 4. The support plate 4 is slidably disposed on the housing 1 along the second direction. The support plate 4 has an extended position extending below the housing 1 along the second direction and a retracted position retracted into the housing 1 along the second direction. When the charging plug is plugged into the socket, by sliding the support plate 4 along the second direction, the support plate 4 can be extended downward to below the housing 1. The extended support plate 4 can lower the center of gravity of the charging plug and reduce the fulcrum position where the charging plug abuts the socket when the charging plug is loose, thereby reducing the degree of looseness of the charging plug and effectively preventing the charging plug from falling off. Specifically, the second direction of the present invention is a vertical direction. Furthermore, the support plate 4 is located below the cover 2, and the outer side surface of the support plate 4 is flush with the outer side surface of the cover 2. This ensures that during the plugging process of the charging plug and the socket, both the cover 2 and the support plate 4 can be tightly connected to the surface of the socket, further improving the stability of the connection and facilitating the reduction of the fulcrum position where the charging plug abuts the socket when the charging plug is loose.

[0055] Optionally, a chute 14 is provided on the housing 1, extending through the bottom end of the housing 1. Sliding portions 41 are provided on both sides of the support plate 4. The support plate 4 is slidably connected to the chute 14 via the sliding portions 41, thereby enabling smooth sliding of the support plate 4. In some embodiments, the chute 14 may be a dovetail groove. Optionally, the support plate 4 has a gap within it, and its upper end is closed to form a blocking portion 42. A stopper 141 is provided at the bottom of the chute 14. When the support plate 4 slides downward in the second direction to the bottom of the chute 14, the blocking portion 42 engages with the stopper 141 to prevent the support plate 4 from moving further downward, thereby preventing the support plate 4 from separating from the housing 1. Furthermore, the chute 14 is located below the accommodating cavity 11 and is in communication with the accommodating cavity 11. The bottom of the cover 2 is blocked at the top of the chute 14. When the support plate 4 moves upward to the limit position, the blocking portion 42 of the support plate 4 abuts against the bottom of the cover 2, thereby limiting the support plate 4 from above.

[0056] Optionally, the outer side of the support plate 4 is provided with anti-slip grooves 43 to increase friction between the hand and the support plate 4, facilitating sliding of the support plate 4. Furthermore, the sliding portion 41 of the support plate 4 is also provided with a limiting protrusion 44. The limiting protrusion 44 has an interference fit with the inner wall of the slide groove 14, and is used to limit the position of the support plate 4 when the support plate 4 does not need to be extended, thereby preventing the support plate 4 from automatically sliding out. For example, the limiting protrusion 44 can be a spherical protrusion with a certain degree of elasticity.

[0057] In some embodiments, the plug assembly 3 further includes an anti-slip structure 33, which is disposed at the rear end of the conductive plug 32 (i.e., the end where the conductive plug 32 is connected to the base 31) and covers a portion of the outer periphery of the conductive plug 32. Optionally, the anti-slip structure 33 is in the shape of a rectangular parallelepiped, and the cross-sectional dimensions of the anti-slip structure 33 are larger than the cross-sectional dimensions of the conductive plug 32 and slightly smaller than the cross-sectional dimensions of the socket of the socket. During the movement of the plug assembly 3 along the first direction, it has a first position and a second position. When the plug assembly 3 is in the first position, the conductive plug 32 extends out of the plug hole 21; when the plug assembly 3 is in the second position, both the conductive plug 32 and the anti-slip structure 33 extend out of the plug hole 21.

[0058] The charging plug of the present invention can be adapted to both normal and aged sockets. When the charging plug is used in a normal socket, the blade assembly 3 is maintained in the first position, and the charging process is achieved by inserting the conductive blade 32 into the socket. When the charging plug is used in an aged socket, the blade assembly 3 is moved to the second position by pulling the conductive blade 32 outward. At this point, not only can the conductive blade 32 be inserted into the socket, but the anti-slip structure 33 can also be inserted into the socket. Because the cross-sectional dimensions of the anti-slip structure 33 are larger than the cross-sectional dimensions of the conductive blade 32, the anti-slip structure 33 can be fully inserted into the socket, with almost no gaps in the upper, lower, or left or right directions. At this point, the charging plug no longer relies on the loose spring inside the socket to clamp the conductive blade 32 to secure it. Instead, the charging plug is secured by the tight connection between the socket and the anti-slip structure 33. This allows the charging plug to adapt to aged sockets and prevent it from falling out due to its own weight or external forces. Only horizontal pulling force can remove it. The present invention effectively improves the connection reliability between the charging plug and the socket, and prevents the charging plug from becoming loose or falling off after being inserted into the socket.

[0059] Optionally, the anti-slip structure 33 and the base 31 are integrally formed, with the conductive insert 32 extending from the anti-slip structure 33 in the first direction toward a side away from the base 31. This configuration provides a simple structure and facilitates fabrication. Furthermore, the anti-slip structure 33, the conductive insert 32, and the base 31 can be integrally formed by insert injection molding, further simplifying the fabrication process and improving structural stability.

[0060] Furthermore, a conductive terminal 313 is provided on the base 31. A conductive spring 16 extending in a first direction is provided within the housing cavity 11 of the housing 1. A relief opening 231 is provided on the connecting plate 23. The conductive terminal 313 passes through the relief opening 231 and is electrically connected to the conductive spring 16. Because the conductive spring 16 extends a certain length in the first direction, the conductive terminal 313 is ensured to maintain good contact with the conductive spring 16 during movement of the plug assembly 3, allowing the plug assembly 3 to perform its current-guiding function regardless of whether it is in the first or second position. A USB port 17 is also provided on the housing 1. The conductive spring 16 is electrically connected to the USB port 17, allowing current to flow from the plug assembly 3 to the USB port 17. The USB port 17 is connected to an electronic product via a data cable to charge the electronic product. Of course, a circuit board electrically connected to the conductive spring 16 is also provided within the housing 1. This is a mature technology in the art and will not be elaborated upon in the present invention.

[0061] In some embodiments, the charging plug further includes a locking device for locking the position of the blade assembly 3. Specifically, the locking device includes a fixing member 12 disposed within the housing 1, a first fixing tooth 123 disposed at the bottom of the fixing member 12, and a second fixing tooth 312 disposed at the top of the base 31. One end of the fixing member 12 is fixedly connected to the housing 1, and the other end is suspended. The fixing member 12 has a locked state and an unlocked state. When the fixing member 12 is in the locked state, the first fixing tooth 123 engages with the second fixing tooth 312, thereby locking the blade assembly 3 in the first or second position, preventing the blade assembly 3 from retracting due to external forces and ensuring the reliability of the charging process of the charging plug. The fixing member 12 is elastic. By bending the fixing member 12 upward, the fixing member 12 can be switched to the unlocked state. At this time, the first fixing tooth 123 disengages from the second fixing tooth 312, thereby unlocking the blade assembly 3 and facilitating the adjustment of the position of the blade assembly 3. The locking device has a simple structure and is easy to operate, and can reliably fix the inserting piece assembly 3 to prevent the inserting piece assembly 3 from shifting during use.

[0062] Optionally, the first fixed tooth 123 and the second fixed tooth 312 are both one-way ratchets, and the tooth surfaces of the first fixed tooth 123 and the second fixed tooth 312 have the same inclination angle; the inclined tooth surface of the second fixed tooth 312 is located on the side close to the conductive plug 32, and the inclined tooth surface of the first fixed tooth 123 is located on the side close to the fixed end of the fixing member 12 (that is, the end fixed to the shell 1). Through the mutual cooperation between the first fixed tooth 123 and the second fixed tooth 312, the plug assembly 3 can only extend outward in the first direction when it is not unlocked and cannot retreat. This arrangement makes it more convenient for the user to pull out the conductive plug 32, saving the unlocking step. The above arrangement enables the blade assembly 3 to move as a whole from the first position to the second position along the first direction when subjected to an outward pulling force, thereby fully exposing the anti-detachment structure 33 from the housing 1, facilitating connection with an aging socket. Furthermore, when the blade assembly 3 is subjected to an inward pushing force, the blade assembly 3 cannot retract due to the restraining action of the first fixed teeth 123 and the second fixed teeth 312, thereby ensuring the reliability of the charging process and preventing the blade assembly 3 from retracting due to force. Furthermore, the first fixed teeth 123 and the second fixed teeth 312 are both wedge-shaped teeth. For example, the first fixed teeth 123 can be shaped like a ◢, and the second fixed teeth 312 can be shaped like a ◤. The first fixed teeth 123 and the second fixed teeth 312 form a ◢◤ fit to achieve unidirectional movement of the blade assembly 3. In actual application, when the charging plug needs to be plugged into an aging socket, just pull out the conductive plug 32 forward with a little force, and the plug assembly 3 can be driven to slide outward, so that the anti-slip structure 33 is completely exposed in the shell 1. The anti-slip structure 33 is tightly plugged into the socket of the socket, thereby achieving a reliable connection between the charging plug and the socket and preventing the connection from loosening or falling off.

[0063] Optionally, the fixing member 12 is further provided with a paddle 124, and the cover 2 is provided with a paddle hole 22, through which the paddle 124 extends. With this arrangement, when unlocking the insert assembly 3, the paddle 124 can be manually moved upward, causing the fixing member 12 to bend upward, disengaging the first fixing tooth 123 and the second fixing tooth 312. At this point, the insert assembly 3 can be pushed inward to return from the second position to the first position. In an optional embodiment, the fixing member 12 is L-shaped and includes a first connecting arm 121 extending in a first direction and a second connecting arm 122 extending upward from the first connecting arm 121. The first connecting arm 121 is fixedly connected to the housing 1, and the first fixing tooth 123 is disposed at the bottom of the first connecting arm 121. The paddle 124 is fixed to the front side of the second connecting arm 122. This arrangement creates a certain torque between the paddle 124 and the first connecting arm 121, making it easier to move the fixing member 12 using the paddle 124.

[0064] like Figures 13-18As shown, the following content of the present invention describes the principle of the anti-falling charging plug of the present invention by comparing it with the charging plug in the prior art.

[0065] refer to Figure 13 and Figure 14 In the prior art, the blade assembly 3' and the socket of the socket 200' are clearance-fitted. When the charging plug 100' loosens and slides down, it does not fall smoothly in the vertical plane. Instead, it slides down only after rotating to a certain angle around the fulcrum 300', where the bottom of the charging plug 100' contacts the lowest point of the socket 200' panel, under the action of gravity. Figure 15 If the charging plug 100 ′ rotates outwardly by a first angle α around the fulcrum 300 ′ at its bottom, the front end of the blade assembly 3 ′ contacts the top of the socket, causing the charging plug 100 ′ to stop tilting. Since the rotation angle of the charging plug 100 ′ does not reach the sliding angle, the charging plug 100 ′ will not slide.

[0066] refer to Figure 16 The charging plug 100 provided by one embodiment of the present invention has an anti-slip structure 33 provided in the blade assembly 3. When the blade assembly 3 is inserted into the socket 200, the anti-slip structure 33 can also enter the socket of the socket 200 and tightly engage with the socket with almost no gap between the two. As a result, the charging plug 100 will not be easily shaken by external forces in the vertical direction or the horizontal direction. Only horizontal force can achieve the insertion and removal of the charging plug 100. In this way, the charging plug 100 is effectively fixed, allowing the charging plug 100 to be used in an aged socket 200 and preventing the charging plug 100 from loosening.

[0067] refer to Figure 17 Another embodiment of the present invention provides a charging plug 100 with a support plate 4. When the charging plug 100 is connected to the socket 200, the support plate 4 is pushed downward, extending downward relative to the housing 1 by a certain distance. The point where the lower end of the support plate 4 contacts the socket 200 panel serves as the fulcrum 300. This elongated support plate 4 lowers the center of gravity of the charging plug 100, lowering the position of the fulcrum 300 where the charging plug 100 contacts the socket 200 when the charging plug 100 is loose, thereby effectively preventing the charging plug 100 from falling off.

[0068] refer to Figure 18 After the charging plug 100 of the embodiment of the present invention rotates around the fulcrum 300 by a second angle β, the front end of the blade assembly 3 touches the top, so that the charging plug 100 stops tilting. The second angle β is less than Figure 15 The first angle α in Figure 15As can be seen from the comparison with the charging plug 100′ shown in the figure, although both rotate around the fulcrum, the present invention has a longer rotation radius of the front end of the blade assembly 3 relative to the fulcrum 300 due to the action of the support plate 4. Therefore, a smaller tilt angle will lift the blade assembly 3 to the same height so that the front end of the blade assembly 3 touches the top and stops tilting. Since a sufficient tilt angle is not reached, the charging plug 100 will not loosen and fall off. In other words, the present invention effectively reduces the degree of loosening of the blade assembly 3 by providing the support plate 4, thereby improving the connection stability between the charging plug 100 and the socket 200.

[0069] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An anti-falling charging plug, characterized in that: include: case; A cover body connected to the shell, and provided with an insert hole; an insert assembly disposed in the housing, the insert assembly comprising a base and a conductive insert fixed to the base, the conductive insert extending from the insert hole along a first direction; A support plate is slidably connected to the shell along the second direction, the support plate is located below the cover body, and the outer side surface of the support plate is flush with the outer side surface of the cover body; the support plate has an extended position extending to the bottom of the shell along the second direction and a retracted position retracted into the shell along the second direction.

2. The anti-fall-off charging plug according to claim 1, characterized in that: The shell is provided with a slide groove, which passes through the bottom end of the shell. Sliding parts are provided on both sides of the support plate, and the sliding parts are slidably connected in the slide groove.

3. The anti-fall-off charging plug according to claim 2, characterized in that: A blocking portion is provided on the top of the support plate, and a blocking block is provided on the bottom of the slide groove. When the support plate slides to the bottom of the slide groove along the second direction, the blocking portion is engaged with the blocking block.

4. The anti-drop charging plug according to claim 2, characterized in that: The sliding portion is provided with a limiting protrusion, and the limiting protrusion is interference-fitted with the inner wall of the sliding groove.

5. The anti-drop charging plug according to claim 1, characterized in that: The outer side surface of the support plate is provided with anti-slip grooves.

6. The anti-drop charging plug according to claim 1, characterized in that: The first direction is a horizontal direction, and the second direction is a vertical direction.

7. The anti-drop charging plug according to claim 2, characterized in that: The shell is provided with a accommodating cavity, the insert assembly is located in the accommodating cavity, and the cover body is provided at the opening of the accommodating cavity; the cover body is provided with a connecting plate extending into the accommodating cavity along a first direction, and the connecting plate abuts against the inner wall of the accommodating cavity.

8. The anti-drop charging plug according to claim 7, characterized in that: The sliding groove is located below the accommodating cavity and is communicated with the accommodating cavity. The bottom of the cover body is blocked at the top of the sliding groove.

9. The anti-drop charging plug according to claim 7, characterized in that: One of the inner wall of the accommodating cavity and the outer wall of the connecting plate is provided with a card slot, and the other is provided with a buckle, and the cover body and the shell are connected through the cooperation of the card slot and the buckle.

10. The anti-drop charging plug according to claim 7, characterized in that: The base is provided with a conductive terminal, the accommodating cavity is provided with a conductive spring, the connecting plate is provided with a avoidance opening, and the conductive terminal passes through the avoidance opening to be electrically connected to the conductive spring.

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