Socket with function of preventing plug from falling off
By designing the structure of the movable fixing frame assembly and locking parts in the socket, the problem of the plug being easily fall off when unplugged is solved, and the plug being stably locked and smoothly unplugged is achieved.
Patent Information
- Application Number
- CN202411406446.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-03-04
AI Technical Summary
When the existing socket is unplugged abnormally, the cable can easily cause the cable to pull the plug out of the socket, affecting the stability of the equipment and possibly causing accidents.
A socket with plug-off function is designed, and a fixing frame assembly movably mounted in the base includes two movable blocks, slide rails, reset parts, flap and locking parts. When the plug is inserted, the flap is turned inward and causes the movable block to slide, and the locking member locks the plug; when pulled out, the fixing frame assembly moves outward along the guide groove, the limiting member limits the position, and the locking member unlocks to prevent the plug from falling off accidentally.
Effectively prevent the plug from falling off accidentally during the unplugging process, ensure the smoothness of plug insertion and unplugging, and reset the plug after it is completely unplugged, without affecting subsequent plug-out operations.
Smart Images
Figure CN119560843A_ABST
Abstract
Description
[Technical field]
[0001] The invention belongs to the technical field of sockets, and in particular relates to a socket with a function of preventing a plug from falling off. [Background technology]
[0002] Power supply mobile devices are devices that can be moved in different positions. They need to have stable power supply and reliable plug connection. When using mobile devices in actual use, due to the limitation of cable length, the plug may fall off due to misjudgment of moving distance, or the plug may fall off from the socket due to external force pulling the cable, resulting in power supply termination, affecting device stability, and even causing accidents in serious cases.
[0003] In this state, a socket is needed which can prevent the plug from falling off and enable the plug to be easily inserted or pulled out. [Summary of the invention]
[0004] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a socket with a function of preventing the plug from falling off, so as to solve the problem that the cable drives the plug to fall off from the socket when the plug is pulled out abnormally, and under normal circumstances, the plug can be easily inserted or pulled out.
[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:
[0006] A socket with a function of preventing a plug from falling off, comprising a base and a socket installed in the base, the socket being plugged into the plug, the socket also comprising a fixed frame assembly movably installed in the base, the fixed frame assembly comprising two movable blocks, a slide rail connecting the two movable blocks and a movable block reset member, and two flaps correspondingly hinged on the two movable blocks, the two movable blocks are relatively slidable in the left and right directions through the slide rail and reset to the middle position through the movable block reset member, and the joint position of the heads of the two flaps is correspondingly located on the outside of the socket; when the plug is inserted into the socket, the two flaps are driven to flip inward, and the two movable blocks are driven by the flaps to slide relatively in the left and right directions, so that The flap is connected to a locking piece that enables the flap to lock the plug after the plug is installed in place, and a guide groove, a limit piece and a fixed frame reset piece are provided in the base; when the plug is pulled out, the fixed frame assembly is driven to move outward along the guide groove, and after moving a set distance, it is limited by the limit piece, the plug stops moving outward and the locking piece releases the lock on the flap, so that when the plug is inserted into the socket again, the flap is driven to flip, and the two flaps are disengaged and unlocked from the plug; after the plug is pulled out from the socket, the two movable blocks are reset by moving toward each other to the middle position through the movable block reset piece, and the fixed frame reset piece pushes the fixed frame assembly to reset inward along the guide groove.
[0007] Preferably, the locking member is an elastic wall, which blocks the flap from turning inward and drives the flap to lock the plug.
[0008] Preferably, the elastic wall is arranged on the bottom wall of the guide groove, the bottom wall of the guide groove is provided with a movable groove cooperating with the flap on one side of the elastic wall, and the bottom wall of the guide groove is provided with a deformation groove on the other side of the elastic wall.
[0009] Preferably, the movable block is U-shaped, and the slide rail includes a slide groove or a guide column arranged on the front and rear side walls of the movable block, and the guide column on one movable block is slidably connected to the slide groove on the other movable block.
[0010] Preferably, the slide groove and the guide column are T-shaped structures.
[0011] Preferably, the movable block reset member is a V-shaped spring, and both movable blocks are provided with spring holes, and both ends of the V-shaped spring are correspondingly connected to the spring holes on the two movable blocks.
[0012] Preferably, the flap is provided with a horizontal portion and a vertical portion connected to the tail end of the horizontal portion and extending downward, the tail end of the horizontal portion is provided with a rotating shaft on both the front and rear sides, the movable block is provided with a rotating shaft hole cooperating with the rotating shaft, and the upper end of the vertical portion is provided with limiting ribs cooperating with the fixed frame on both the front and rear sides.
[0013] Preferably, a protruding portion is provided at the middle position of the head end of the horizontal portion, an upper inclined surface is provided on the upper side of the protruding portion, a vertical wall is provided in the middle, and a lower curved surface is provided on the lower side.
[0014] Preferably, the limiting member is a limiting column arranged on the upper side of the guide groove.
[0015] Preferably, the fixing frame reset member is a reset spring sleeved on the limiting column.
[0016] The present invention adopts the above technical solution and has the following beneficial effects:
[0017] 1. The joint position of the heads of the two flaps corresponds to the outside of the socket. The plug is inserted into the socket from the joint position of the heads of the two flaps. The flap is connected with a locking member that locks the plug when the plug is installed in place. When the plug is pulled out, the fixed frame assembly is driven to move outward along the guide groove. After moving a set distance, it is limited by the limit member. The plug stops moving outward and the locking member releases the lock on the flap, so that when the plug is inserted into the socket again, the flap is driven to flip and disengage from the plug and unlock, and the plug can be pulled out.
[0018] In this way, when the plug is inserted into the socket, the two flaps flip inward to avoid the plug, and the two movable blocks are driven by the flaps to slide relative to each other in the left and right directions, also making a movement to avoid the plug, so the plug insertion process is smooth; when pulling out the plug, first pull out a part of the plug, then press down to unlock and pull it out, which can prevent the plug from falling off or being pulled out by mistake.
[0019] After the plug is pulled out from the socket, the two movable blocks are reset by moving toward the middle position through the movable block reset member, and the fixed frame reset member pushes the fixed frame assembly to reset inward along the guide groove without affecting the normal plugging and unplugging of the plug next time.
[0020] 2. Use an elastic wall to prevent the flap from turning inward and drive the flap to lock the plug. Since the elastic wall can generate a large locking force, the plug is locked to prevent it from falling off.
[0021] 3. The bottom wall of the guide groove is provided with a movable groove cooperating with the flap on one side of the elastic wall, and a deformation groove is provided on the other side of the elastic wall. The movable groove enables the flap to move within a certain range and act on the elastic wall, while the deformation groove enables the elastic wall to deform elastically and generate a larger locking force.
[0022] 4. The movable block is U-shaped, so that the two movable blocks are combined into a frame structure, in which the guide column on one movable block is slidably connected to the slide groove on the other movable block to form a slide rail. Since the front and rear side walls of the two movable blocks are correspondingly connected with the slide rail, it is ensured that the two movable blocks and the two connected flaps can slide straight left and right.
[0023] 5. The slide groove and the guide column are T-shaped structures. In this way, when the two movable blocks move outward to the left and right to the maximum position, a limit is naturally formed.
[0024] 6. When the plug is inserted into the socket, the front and back of the plug come into contact with the V-shaped spring, causing the V-shaped spring to expand. At the same time, under the action of the plug, the flap drives the two movable blocks to move relative to the left and right directions respectively; after the plug is pulled out of the socket, the V-shaped spring contracts, driving the two movable blocks to move relative to the left and right directions and reset.
[0025] 7. The vertical part is located in the movable groove. Before the flip, the horizontal part is roughly horizontal. When the plug is inserted into the socket, the plug acts on the horizontal part to realize the overall flip of the flap. The vertical part moves in the movable groove and acts on the elastic wall. When the plug is fully inserted through the gap between the horizontal parts of the two flaps, the flap locks the plug under the action of the elastic wall. The flap cannot continue to flip downward after it flips down to a certain angle under the limiting action of the limiting ribs and the fixed frame.
[0026] 8. When the plug is inserted into the socket, the left and right sides of the plug contact the upper inclined surface, pushing the flap to flip downward. When the plug is installed in place and locked by the flap, the vertical wall and the left and right sides of the pin are locked tightly, with a large contact area to ensure reliable locking.
[0027] 9. The limit column extends vertically, and the lower end cooperates with the fixed frame to limit the outward movement of the fixed frame. The return spring abuts against the fixed frame in a naturally extended state. Therefore, when the fixed frame moves outward, the return spring is first compressed until it abuts against the lower end of the limit column.
[0028] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.
Brief Description of the Drawings
[0029] The invention will be further described below in conjunction with the accompanying drawings:
[0030] Figure 1 A cross-sectional view of the initial state of the plug of the present invention being inserted into the socket;
[0031] Figure 2 A cross-sectional view of the plug of the present invention after being inserted into place;
[0032] Figure 3 It is a cross-sectional view of the plug of the present invention after being pulled out and locked;
[0033] Figure 4 A cross-sectional view of the plug of the present invention after further insertion and unlocking;
[0034] Figure 5 An exploded view of the main components of the present invention is provided;
[0035] Figure 6 It is a schematic diagram of the connection structure of two movable blocks in the present invention;
[0036] Figure 7 It is a schematic diagram of the structure of two flaps in the present invention;
[0037] Figure numerals: 1, plug; 1-1, limit column; 2, socket panel; 3, mounting bracket; 4, base; 5, socket cover; 50, guide groove, 5-1, elastic wall; 5-2, deformation groove; 5-3 movable groove; 6, terminal; 7, socket; 8, flap; 801, horizontal part; 802, vertical part; 803, protruding part; 8031, upper inclined surface; 8032, vertical wall; 8033, lower arc surface; 8-1, shaft; 8-2, limit rib; 8-3, avoidance groove; 9, movable block; 9-1, shaft hole; 9-2, spring hole; 9-3, slide groove; 9-4, guide column; 10, reset spring; 11, V-shaped spring. [Specific implementation method]
[0038] The technical solutions of the embodiments of the present invention are explained and described below in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.
[0039] Those skilled in the art will appreciate that, in the absence of conflict, the features in the following embodiments and implementations may be combined with each other.
[0040] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. For example, the following words indicating orientation or positional relationship, such as "upper", "lower", "left", "right", "front", "back", etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.
[0041] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0042] In the present invention, the terms "installation", "fixation", "insertion", "limitation", "movement" and the like should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0043] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.
[0044] Reference Figures 1 to 7As shown, a socket with a function of preventing a plug from falling off comprises a base 4 and a socket 7 installed in the base, and the socket 7 is plugged with a plug 1. The socket also comprises a fixed frame assembly movably installed in the base 4, and the fixed frame assembly comprises two movable blocks 9, a slide rail connecting the two movable blocks and a movable block reset member, and two flaps 8 correspondingly hinged on the two movable blocks. The two movable blocks 9 form a fixed frame, wherein the head-joining position of the two flaps is correspondingly located outside the socket, and the plug 1 enters from the head-joining position of the two flaps 8 and then is inserted into the socket 7. When the plug 1 is inserted into the socket 7, the two flaps 8 are driven to flip inward, and the flaps drive the two movable blocks 9 to slide relative to each other in the left and right directions. The flap 8 is connected to a locking member that locks the plug 1 when the plug is installed in place. A guide groove 50 and a limit member are provided in the base 4. When the plug is pulled out, the fixed frame assembly is driven to move outward along the guide groove 50. After moving a set distance, it is limited by the limit member. The plug 1 stops moving outward and the locking member releases the lock on the flap 8. When the plug is inserted into the socket again, the flap 8 is driven to flip and disengage from the plug and unlock, and the plug 1 can be pulled out.
[0045] In this way, when the plug is inserted into the socket, the two flaps flip inward to avoid the plug, and the two movable blocks are driven by the flaps to slide relatively in the left and right directions to avoid the plug, so the plug insertion process is smooth.
[0046] After the plug 1 is pulled out from the socket, the two movable blocks 9 are reset by moving toward the middle position through the movable block reset member, and the fixed frame reset member pushes the fixed frame assembly to reset inward along the guide groove. Therefore, the normal plugging and unplugging of the plug next time is not affected.
[0047] As an embodiment, the locking member is an elastic wall 5-1 provided on the base 4, and the elastic wall blocks the flap 8 from turning inward and drives the flap to lock the plug 1. Specifically, the elastic wall 5-1 is provided on the bottom wall of the guide groove 50, and the bottom wall of the guide groove 50 is provided with a movable groove 5-3 that cooperates with the flap on one side of the elastic wall, and the bottom wall of the guide groove 50 is provided with a deformation groove 5-2 on the other side of the elastic wall. In this way, when the flap rotates, the bottom of the flap moves in the movable groove, and the elastic wall blocks the flap from turning inward and deforms toward the deformation groove, thereby generating a reaction force to make the flap lock the plug. Since the elastic wall can generate a large locking force, it ensures that the plug is locked and prevents it from falling off. The elastic wall is an inclined surface, and the bottom of the flap is provided with an inclined surface that cooperates with the inclined surface of the elastic wall. It can be understood that the elastic wall can also be replaced by a spring or other elastic member.
[0048] Specifically, Figure 6As shown, the movable block 9 is U-shaped, and the slide rail includes a slide groove 9-3 or a guide column 9-4 provided on the front and rear side walls of the movable block, that is, on the same side (front side, rear side) of the two movable blocks, the guide column on one movable block is slidably connected to the slide groove on the other movable block. In addition, on the same movable block, a guide column is provided on one side (front side or rear side), and a slide groove is provided on the other side. Since the front and rear side walls of the two movable blocks are correspondingly connected with the slide rail, it is ensured that the two movable blocks and the two connected flaps can slide straightly left and right.
[0049] Furthermore, the slide groove 9-3 and the guide post 9-4 are both T-shaped structures, and are set through the front and rear side walls of the movable block. In this way, when the two movable blocks are combined, the guide post on one side of one movable block and the slide groove on the same side of the other movable block are first inserted into each other, and then one of the movable blocks is rotated 180 degrees, and the slide groove on the other side of one movable block and the guide post on the same side of the other movable block are first connected and inserted into each other to form an annular fixed frame. In addition, when the two movable blocks move outward to the maximum position to the left and right, a limit is naturally formed.
[0050] Specifically, Figure 7 As shown, the flap 8 is provided with a horizontal portion 801 and a vertical portion 802 connected to the tail end of the horizontal portion and extending downward, the tail end of the horizontal portion is provided with a rotating shaft 8-1 on both the front and rear sides, the movable block 9 is provided with a rotating shaft hole 9-1 matched with the rotating shaft, and the upper end of the vertical portion is provided with a limiting rib 8-2 on both the front and rear sides matched with the fixed frame. The vertical portion 802 is located in the movable groove 5-3, and the inclined surface is located outside the vertical portion 802 and matched with the inclined surface of the elastic wall. Before the horizontal portion 801 is flipped, it is roughly horizontal, and the two inclined surfaces are not attached, with a certain gap. When the plug is inserted into the socket, the plug acts on the horizontal portion to realize the overall flipping of the flap. When flipped to a certain angle, the two inclined surfaces act, and the vertical portion moves in the movable groove and acts on the elastic wall. When the plug is fully inserted through the gap between the horizontal portions 801 of the two flaps, under the action of the elastic wall, the flap locks the plug. Under the limiting action of the limiting rib 8-2 and the fixed frame, the flap cannot continue to be turned downward after turning downward to a certain angle.
[0051] Furthermore, a protrusion 803 is provided at the middle of the head end of the horizontal portion 801, and an upper inclined surface 8031 is provided on the upper side of the protrusion, a vertical wall 8032 is provided in the middle, and a lower arc surface 8033 is provided on the lower side, which is conducive to the interaction between the plug and the protrusion 803. In this way, when the plug is inserted into the socket, the left and right sides of the plug contact with the upper inclined surface, pushing the flap to flip downward, and when the plug is installed in place and locked by the flap, the vertical wall and the left and right sides of the latch are locked, and the contact area is large, ensuring reliable locking.
[0052] As an implementation mode, the movable block reset member is a V-shaped spring 11, which is V-shaped in the middle and has fixed feet at both ends. Both movable blocks 9 are provided with spring holes 9-2, and the fixed feet at both ends of the V-shaped spring are connected to the spring holes 9-2 on the two movable blocks. Specifically, the groove wall of the slide groove 9-3 and the head of the guide column 9-4 are provided with spring holes 9-2. The two sides of the protrusions on the two flaps are combined to form two front and rear avoidance grooves 8-3, and the V-shaped spring is arranged in the avoidance groove. When the plug is inserted into the socket, the front and back of the plug contact with the V-shaped spring, so that the V-shaped spring opens, and at the same time, under the action of the plug, the flap drives the two movable blocks to move relative to each other in the left and right directions; after the plug is pulled out of the socket, the V-shaped spring contracts, driving the two movable blocks to move toward each other in the left and right directions and reset. Of course, it can be understood that the movable block reset member can also be replaced with other forms of springs or other elastic members.
[0053] In this embodiment, the limiter is a limiter column 1-1 disposed on the upper side of the guide groove. The limiter column extends vertically, and the lower end cooperates with the fixed frame to limit the outward movement of the fixed frame. The fixed frame reset member is a reset spring 10 that is sleeved on the limiter column and is longer than the limiter column 1-1. It abuts against the fixed frame in a naturally extended state. Therefore, when the fixed frame moves outward, the reset spring is first compressed until it abuts against the lower end of the limiter column. A total of four pairs of limiter columns and reset springs are provided, which are respectively provided above the two side walls of the two movable blocks.
[0054] In addition, the base 4 is provided with a connection terminal 6 and a socket cover 5, the socket cover 5 is located outside the socket 7, and a guide groove 50 is provided on the socket cover 5. The fixing frame assembly is assembled into the socket cover, and together with the base, forms a base assembly. The base assembly is fixed to the socket panel 2 by a buckle to form a socket panel assembly, and the upper end of the limit column 1-1 can be fixed on the socket panel.
[0055] like Figure 1 As shown: the terminal block 6, the socket 7, and the socket cover 5 are placed in the base 4, and then the fixed frame assembly is assembled. The flaps 8 are installed one on each side and mirror-mounted on two movable blocks 9. The movable blocks 9 cooperate with the shaft hole 9-1 on the fixed frame through the shaft 8-1 to form a fixed frame assembly. The fixed frame assembly is placed in the base, and the socket panel 2 is installed on the outside of the base.
[0056] like Figure 2 As shown: the plug 1 is inserted into the socket, the front and back sides of the plug contact with the V-shaped spring 11 to open the spring, and the left and right sides of the plug contact with the flap 8 to move the flap left and right. Under the action of the plug, the flap drives the two movable blocks 9 on the fixed frame to move left and right and open respectively. The plug 1 is installed in place and locked by the flap 8, and the flap drives the elastic wall 5-1 to deform toward the position of the deformation groove 5-2.
[0057] like Figure 3As shown: when the plug 1 is pulled out, the fixed frame assembly moves outward together, and contacts the limit column 1-1 after moving to a certain distance, the plug 1 stops moving outward, the plug 1 is locked, the flap 8 flips outward and disengages from the elastic wall 5-1, and the elastic wall returns to its original position without the influence of external force.
[0058] like Figure 4 As shown: the plug 1 is inserted into the socket again, the flap 8 is flipped at an angle, disengaged from the plug 1 and unlocked, and the plug 1 is pulled out.
[0059] like Figure 5 As shown: after the plug 1 is pulled out, the plug 1 is no longer in contact with the V-shaped spring 11, and the V-shaped spring 11 contracts toward the middle, driving the fixed frame assembly to contract toward the middle. After the fixed frame assembly contracts, the return spring 10 pushes the fixed frame assembly to the initial position.
[0060] It is understandable that the socket in this embodiment is not only applicable to three-hole sockets, but also to five-hole sockets or other multi-hole sockets. For a three-hole socket, the fixing frame component can be set corresponding to one of the holes, usually corresponding to the grounding hole.
[0061] The above is only a specific embodiment of the invention, but the protection scope of the invention is not limited thereto. Those skilled in the art should understand that the invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the invention will be included in the scope of the claims.
Claims
1. A socket with a function of preventing a plug from falling off, comprising a base and a socket installed in the base, the socket being engaged with the plug, characterized in that: The socket also includes a fixed frame assembly movably installed in the base, the fixed frame assembly includes two movable blocks, a slide rail connecting the two movable blocks and a movable block reset member, and two flaps correspondingly hinged on the two movable blocks. The two movable blocks can slide relative to each other in the left and right directions through the slide rail and reset to the middle position through the movable block reset member. The joint position of the heads of the two flaps is correspondingly located outside the socket. When the plug is inserted into the socket, the two flaps are driven to flip inward, and the flaps drive the two movable blocks to slide relative to each other in the left and right directions. The flap is connected with a flap that is turned after the plug is installed in place. The locking piece that locks the plug has a guide groove, a limit piece and a fixed frame reset piece arranged in the base; when the plug is pulled out, the fixed frame assembly is driven to move outward along the guide groove, and after moving a set distance, the limit piece limits the position, the plug stops moving outward and the locking piece releases the lock on the flap, so that when the plug is inserted into the socket again, the flap is driven to flip, and the two flaps are disengaged and unlocked from the plug; after the plug is pulled out from the socket, the two movable blocks are reset by moving toward each other to the middle position through the movable block reset piece, and the fixed frame reset piece pushes the fixed frame assembly to reset inward along the guide groove.
2. A socket with a function of preventing the plug from falling off according to claim 1, characterized in that: The locking member is an elastic wall, which blocks the flap from turning inwards and drives the flap to lock the plug.
3. A socket with a function of preventing the plug from falling off according to claim 2, characterized in that: The elastic wall is arranged on the bottom wall of the guide groove, the bottom wall of the guide groove is provided with a movable groove cooperating with the flap on one side of the elastic wall, and the bottom wall of the guide groove is provided with a deformation groove on the other side of the elastic wall.
4. A socket with a function of preventing plugs from falling off according to claim 1, characterized in that: The movable block is U-shaped, and the slide rail includes a slide groove or a guide column arranged on the front and rear side walls of the movable block, wherein the guide column on one movable block is slidably connected to the slide groove on the other movable block.
5. A socket with a function of preventing the plug from falling off according to claim 4, characterized in that: The slide groove and the guide column are T-shaped structures.
6. The socket with a plug-off prevention function according to claim 1, characterized in that: The movable block reset member is a V-shaped spring, and both movable blocks are provided with spring holes. The two ends of the V-shaped spring are correspondingly connected to the spring holes on the two movable blocks.
7. The socket with a plug-off prevention function according to claim 1, characterized in that: The flap is provided with a horizontal portion and a vertical portion connected to the rear end of the horizontal portion and extending downward, the rear end of the horizontal portion is provided with a rotating shaft on both the front and rear sides, the movable block is provided with a rotating shaft hole matching the rotating shaft, and the upper end of the vertical portion is provided with limiting ribs matching the fixed frame on both the front and rear sides.
8. The socket with a plug-off prevention function according to claim 7, characterized in that: A protruding portion is provided at the middle position of the head end of the horizontal portion, an upper inclined surface is provided on the upper side of the protruding portion, a vertical wall is provided in the middle, and a lower curved surface is provided on the lower side.
9. The socket with a plug-off prevention function according to claim 1, characterized in that: The limiting member is a limiting column arranged on the upper side of the guide groove.
10. A socket with a function of preventing the plug from falling off according to claim 9, characterized in that: The fixing frame reset member is a reset spring sleeved on the limiting column.