Embedded wall socket

Abstract

The invention relates to the technical field of sockets, and discloses an embedded wall socket which comprises a socket body, the outer surface of a rotating shaft is fixedly sleeved with a protective cover, the outer surface of the rotating shaft is fixedly sleeved with first gears on the left and right sides of the protective cover, and the outer surface of the bottom of an inverted-L-shaped rod is fixedly connected with a pin. Conical barrels are fixedly connected to the opposite outer surfaces of the left side and the right side of the rotating seat correspondingly, conical inner sleeves are arranged in the conical barrels, and steel balls are arranged in the three containing grooves correspondingly. A contact pin is inserted into a conical barrel, the contact pin is limited through a steel ball, the contact pin is prevented from moving upwards, an inverted-L-shaped rod and a limiting block are limited, a first gear is prevented from rotating, a rotating shaft cannot rotate, a protective cover cannot be opened, jacks of a socket body are protected through the protective cover, and the protective cover is difficult to open easily; and a child is prevented from stretching fingers into the jacks of the socket body, so that the safety of the socket body in use is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sockets, in particular to a built-in wall socket. Background Art

[0002] Embedded sockets are a common power interface device, widely used in homes, offices, public places and other places. Traditional embedded sockets are usually made of metal and plastic materials, installed on walls or the ground, and are used to provide power supply and connect electrical equipment.

[0003] The socket of the socket is generally exposed to the outside, and there is current inside the socket. If part of the body touches the conductive part, electric shock may occur. There are certain safety hazards for families with children. Playful children may put their fingers into the socket. Although some sockets are provided with protective covers, the protective covers can be easily opened. Children may still open the protective covers on their own and put their fingers into the socket, which poses a safety hazard. Therefore, an embedded wall socket is proposed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a built-in wall socket to solve the problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an embedded wall socket, comprising a socket body, the top outer surface of the socket body is provided with an upper extension plate, the front outer surface of the upper extension plate is fixedly connected with a rotating seat, the outer surface of the rotating seat is rotatably penetrated by a rotating shaft, the outer surface of the rotating shaft is fixedly sleeved with a protective cover, the outer surface of the rotating shaft is located on the left and right sides of the protective cover and is fixedly sleeved with a first gear, a limit block is movably arranged between two adjacent teeth at the top of the first gear, the top outer surface of the limit block is fixedly connected with a connecting rod, the top outer surface of the connecting rod is fixedly connected with an inverted L-shaped rod, the bottom outer surface of the inverted L-shaped rod is fixedly connected with a pin, the opposite outer surfaces on the left and right sides of the rotating seat are fixedly connected with a conical cylinder, the interior of the conical cylinder is provided with a conical inner sleeve, the outer surface of the conical inner sleeve is provided with three accommodating grooves arranged in a circumferential array, the interiors of the three accommodating grooves are provided with steel balls, and the pin is movably inserted between the three steel balls.

[0006] As a further explanation of the present invention, a movable rod is fixedly connected to the bottom outer surface of the conical inner sleeve, an L-shaped frame is fixedly connected to the bottom outer surface of the movable rod, a first wedge block is fixedly connected to the bottom outer surface of the L-shaped frame, and an extrusion rod is movably inserted into the left and right outer surfaces of the rotating seat, a side of the extrusion rod located outside the rotating seat is fixedly connected to an extrusion disk, and a side of the extrusion rod away from the extrusion disk is fixedly connected to a second wedge block, and the second wedge block is movably fitted with the outer surface of the first wedge block.

[0007] As a further explanation of the present invention, the opposite surfaces on the left and right sides of the rotating seat are fixedly connected with horizontal plates, the insertion pin movably penetrates the outer surface of the horizontal plate, and a first spring is fixedly connected between the horizontal plate and the L-shaped rod, and the first spring is sleeved on the outer surface of the insertion pin.

[0008] As a further explanation of the present invention, the opposite surfaces on the left and right sides of the rotating seat are fixedly connected with support plates, the movable rod movably penetrates the outer surface of the support plate, and a second spring is fixedly connected between the support plate and the conical inner sleeve, and the second spring is sleeved on the outer surface of the movable rod.

[0009] As a further description of the present invention, a third spring is fixedly connected to one side of the second wedge block away from the first wedge block, the other end of the third spring is fixedly connected to the inner side wall of the rotating seat, and the third spring is sleeved on the outer surface of the extrusion rod.

[0010] As a further explanation of the present invention, a lower extension plate is fixedly connected to the bottom outer surface of the socket body, and two connecting shafts are rotatably penetrated through the front outer surface of the lower extension plate. A stop rod is fixedly sleeved on one end of the two connecting shafts located outside the extension plate.

[0011] As a further explanation of the present invention, the outer surfaces of the two connecting shafts located inside the lower extension plate are fixedly sleeved with a second gear, the interior of the extension plate is rotatably connected to two transmission shafts, the outer surfaces of the two transmission shafts are fixedly sleeved with a third gear, and the outer surfaces of the two third gears are movably engaged with each other.

[0012] As a further explanation of the present invention, the outer surfaces of the two transmission shafts and the two connecting shafts are fixedly sleeved with transmission wheels, and belts are wound between the two transmission wheels on the left and between the two transmission wheels on the right.

[0013] As a further explanation of the present invention, two fixing plates are fixedly connected inside the lower extension plate, and coil springs are wound around the outer surfaces of the two connecting shafts, and the other ends of the coil springs are fixedly connected to the fixing plates.

[0014] As a further illustration of the present invention, the conical tube and the conical inner sleeve are both thin at the top and thick at the bottom.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In an embedded wall socket provided by the present invention, a pin is inserted into a conical cylinder, and a steel ball is used to limit the pin to prevent the pin from moving upward, thereby limiting the inverted L-shaped rod and the limit block to prevent the first gear from rotating, so that the rotating shaft cannot rotate and the protective cover cannot be opened. The protective cover is used to protect the socket hole of the socket body, and it is difficult to open the protective cover easily, so as to prevent children from inserting their fingers into the socket hole of the socket body, thereby improving the safety of the socket body when in use.

[0017] 2. In a built-in wall socket provided by the present invention, by squeezing the squeezing disk toward the same side, cooperating with the second wedge block and the first wedge block, the L-shaped frame drives the movable rod so that the conical inner sleeve drives the steel ball to move downward, thereby releasing the limit on the pin, so that the first gear can squeeze the limit block when it rotates, so that the inverted L-shaped rod drives the pin to move, so that the protective cover can be opened by applying force to the two squeezing disks at the same time.

[0018] 3. In an embedded wall socket provided by the present invention, force is applied to the barrier rod, and the second gear, the third gear, the transmission wheel and the belt are cooperated to increase the angle between the two barrier rods, and then the plug is inserted. After the insertion is completed, the force applied to the barrier rod is stopped, and the two barrier rods are driven to reset under the action of the coil spring, and the plug is limited by the barrier rod to prevent the plug from being easily detached by external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view structural schematic diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the protective cover of the present invention when it is opened;

[0021] Figure 3 It is a schematic diagram of the rotating seat and its related structures of the present invention;

[0022] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0023] Figure 5 It is a schematic diagram of the gear and its related structure of the present invention;

[0024] Figure 6 It is a schematic diagram of the conical cylinder and its related structures of the present invention;

[0025] Figure 7 It is a schematic diagram of the exploded structure of the conical tube, the conical inner sleeve and their related structures of the present invention;

[0026] Figure 8 It is a front view cross-sectional structural schematic diagram of the present invention;

[0027] Fig. 9 It is a schematic diagram of the cross-sectional structure of the present invention when viewed from above;

[0028] Fig.10 For the present invention Fig. 9 The enlarged structural diagram at B in the middle;

[0029] Fig.11 It is a structural schematic diagram of the plug of the present invention when it is inserted into the socket body.

[0030] In the figure: 1. socket body; 2. upper extension plate; 3. rotating seat; 4. rotating shaft; 5. first gear; 6. connecting rod; 7. limiting block; 8. inverted L-shaped rod; 9. pin; 10. conical cylinder; 11. conical inner sleeve; 12. steel ball; 13. protective cover; 14. movable rod; 15. L-shaped frame; 16. first wedge block; 17. extrusion rod; 18. extrusion disk; 19. second wedge block; 20. first spring; 21. second spring; 22. third spring; 23. second gear; 24. third gear; 25. stop rod; 26. transmission wheel; 27. belt; 28. coil spring; 29. ​​lower extension plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0032] Embodiment 1:

[0033] Please refer to Figure 1-Figure 7 The present invention provides a technical solution: an embedded wall socket, comprising a socket body 1, an upper extension plate 2 is arranged on the top outer surface of the socket body 1, a rotating seat 3 is fixedly connected to the front outer surface of the upper extension plate 2, a rotating shaft 4 is rotatably penetrated on the outer surface of the rotating seat 3, a protective cover 13 is fixedly sleeved on the outer surface of the rotating shaft 4, a first gear 5 is fixedly sleeved on the left and right sides of the outer surface of the rotating shaft 4 located on the protective cover 13, a limit block 7 is movably arranged between two adjacent teeth at the top of the first gear 5, a connecting rod 6 is fixedly connected to the top outer surface of the limit block 7, an inverted L-shaped rod 8 is fixedly connected to the top outer surface of the connecting rod 6, a pin 9 is fixedly connected to the bottom outer surface of the inverted L-shaped rod 8, a conical cylinder 10 is fixedly connected to the opposite outer surfaces on the left and right sides of the rotating seat 3, a conical inner sleeve 11 is arranged inside the conical cylinder 10, and three accommodating grooves arranged in a circumferential array are opened on the outer surface of the conical inner sleeve 11, and steel balls 12 are arranged inside the three accommodating grooves, and the pin 9 is movably inserted between the three steel balls 12.

[0034] In this embodiment, the conical tube 10 and the conical inner sleeve 11 are both thin at the top and thick at the bottom. By setting the conical tube 10 with a thick top and a thin bottom, when the pin 9 needs to be pulled upward, the pin 9 will drive the steel ball 12 to generate an upward force, and the steel ball 12 is blocked by the inner wall of the conical tube 10, resulting in the steel ball 12 being unable to move upward. The higher the pin 9 goes, the tighter the steel ball 12 bites the pin 9, thereby limiting the pin 9.

[0035] In the specific implementation process, the socket body 1 is embedded and installed in the wall. When the socket body 1 is not in use, the protective cover 13 is covered. When a child wants to open the protective cover 13 and applies force to the protective cover 13, the rotating shaft 4 needs to rotate. When the rotating shaft 4 rotates, it needs to drive the first gear 5 to rotate. When the first gear 5 rotates and contacts the limit block 7, the first gear 5 needs to squeeze the limit block 7 to move upward, and the inverted L-shaped rod 8 and the pin 9 need to move upward. However, because the pin 9 is inserted into the conical inner sleeve 11 inside the conical cylinder 10 and is located at the center of the three steel balls 12, if the pin 9 moves upward, it will The steel ball 12 is driven to generate an upward force, but the steel ball 12 is blocked by the inner wall of the tapered tube 10, so that the steel ball 12 cannot move upward. The higher the pin 9 goes, the tighter the steel ball 12 bites the pin 9, thereby limiting the pin 9, causing the limit block 7 to be unable to move upward. At this time, the first gear 5 cannot rotate, resulting in the shaft 4 also unable to rotate, and the protective cover 13 cannot be opened. The protective cover 13 protects the socket hole of the socket body 1, and it is difficult to open the protective cover 13 easily, which prevents children from inserting their fingers into the socket hole of the socket body 1, thereby improving the safety of the socket body 1 when in use.

[0036] Embodiment 2:

[0037] Please refer to Figure 1-Figure 7 The present invention provides a technical solution: a movable rod 14 is fixedly connected to the bottom outer surface of the conical inner sleeve 11, an L-shaped frame 15 is fixedly connected to the bottom outer surface of the movable rod 14, a first wedge block 16 is fixedly connected to the bottom outer surface of the L-shaped frame 15, and extrusion rods 17 are movably inserted into the left and right outer surfaces of the rotating seat 3, and an extrusion plate 18 is fixedly connected to the side of the extrusion rod 17 located outside the rotating seat 3, and a second wedge block 19 is fixedly connected to the side of the extrusion rod 17 away from the extrusion plate 18, and the second wedge block 19 is movably fitted with the outer surface of the first wedge block 16. Specifically, force is applied to the two extrusion plates 18 on the same side, and the extrusion plate 18 drives the extrusion rod 17 to make the second wedge block 19 squeeze the first wedge block 16, so that the first wedge block 16 moves downward.

[0038] In this embodiment, the opposite surfaces on the left and right sides of the rotating seat 3 are fixedly connected with cross plates, and the pin 9 movably penetrates the outer surface of the cross plate. A first spring 20 is fixedly connected between the cross plate and the L-shaped rod. The first spring 20 is sleeved on the outer surface of the pin 9. Specifically, when the first gear 5 squeezes the limit block 7 so that the connecting rod 6 drives the inverted L-shaped rod 8 to move upward, the inverted L-shaped rod 8 drives the pin 9 to move upward and stretches the first spring 20. When the limit block 7 contacts the gap between two adjacent teeth of the first gear 5, the first spring 20 drives the inverted L-shaped rod 8 to reset.

[0039] In this embodiment, the opposite surfaces on the left and right sides of the rotating seat 3 are fixedly connected with support plates, the movable rod 14 movably penetrates the outer surface of the support plate, and a second spring 21 is fixedly connected between the support plate and the conical inner sleeve 11. The second spring 21 is sleeved on the outer surface of the movable rod 14. Specifically, when the L-shaped frame 15 drives the movable rod 14 downward, the movable rod 14 drives the conical inner sleeve 11 to move downward, and the second spring 21 is compressed. When the first wedge block 16 stops being subjected to force, the second spring 21 drives the conical inner sleeve 11 to reset, so that the pin 9 is inserted between the three steel balls 12.

[0040] In this embodiment, a third spring 22 is fixedly connected to the side of the second wedge block 19 away from the first wedge block 16, and the other end of the third spring 22 is fixedly connected to the inner wall of the rotating seat 3. The third spring 22 is sleeved on the outer surface of the extrusion rod 17. Specifically, when the extrusion disk 18 is squeezed, the extrusion rod 17 is driven to stretch the third spring 22. When the force on the extrusion disk 18 stops, the third spring 22 is reset, driving the extrusion rod 17 and the second wedge block 19 to reset.

[0041] In the specific implementation process, when the socket body 1 needs to be used, the user squeezes the squeezing plate 18 with two fingers on the same side, and the squeezing plate 18 drives the squeezing rod 17 to move, and the third spring 22 is deformed, so that the second wedge block 19 squeezes the first wedge block 16. As the second wedge block 19 squeezes, the first wedge block 16 moves downward, and the first wedge block 16 drives the L-shaped frame 15 to move the movable rod 14 downward, so that the second spring 21 is deformed, and the movable rod 14 drives the conical inner sleeve 11 to move downward, and the conical inner sleeve 11 drives the steel balls 12 to move downward. Under the action of the conical cylinder 10, gaps are generated between the steel balls 12, thereby releasing the limit of the pin 9. , and then force is applied to the protective cover 13, the protective cover 13 drives the rotating shaft 4 to rotate, so that the first gear 5 rotates, and the first gear 5 squeezes the limiting block 7, so that the connecting rod 6 drives the inverted L-shaped rod 8 and the pin 9 upward. At this time, the first spring 20 is deformed until the protective cover 13 is opened, and the plug is inserted into the jack of the socket body 1. When the force on the squeezing disk 18 stops, the third spring 22 drives the second wedge block 19 to reset, and the second spring 21 drives the conical inner sleeve 11, so that the conical inner sleeve 11 and the first wedge block 16 are reset, so that the steel ball 12 continues to limit the pin 9, so that the protective cover 13 can be opened by applying force to the two squeezing disks 18 at the same time.

[0042] Embodiment 3:

[0043] Please refer to Figure 8-Figure 11 The present invention provides a technical solution: a lower extension plate 29 is fixedly connected to the bottom outer surface of the socket body 1, and two connecting shafts are rotatably penetrated through the front outer surface of the lower extension plate 29. A stop rod 25 is fixedly sleeved on one end of the two connecting shafts located outside the extension plate. Specifically, the stop rod 25 is used to limit the plug to prevent the plug from being easily detached by external force.

[0044] In this embodiment, the outer surfaces of the two connecting shafts located inside the lower extension plate 29 are fixedly sleeved with a second gear 23, and the interior of the extension plate is rotatably connected to two transmission shafts. The outer surfaces of the two transmission shafts are fixedly sleeved with a third gear 24, and the outer surfaces of the two third gears 24 are movably engaged with each other. Specifically, when the third gear 24 rotates, the rotation directions of the two third gears 24 are opposite, so that the two third gears 24 respectively drive the two second gears 23 to rotate, so that the two second gears 23 also rotate in opposite directions.

[0045] In this embodiment, the outer surfaces of the two transmission shafts and the two connecting shafts are fixedly sleeved with transmission wheels 26, and belts 27 are wound between the two transmission wheels 26 on the left and between the two transmission wheels 26 on the right. Specifically, force is applied to the baffle rod 25 on one side to rotate the baffle rod 25, and the baffle rod 25 drives the transmission wheel 26 on the connecting shaft to rotate, and the other transmission wheel 26 is driven to rotate under the action of the belt 27, thereby causing the third gear 24 to rotate, and the other second gear 23 is driven to rotate under the action of the other transmission wheel 26 and the belt 27.

[0046] In this embodiment, the interior of the lower extension plate 29 is fixedly connected to two fixed plates, and the outer surfaces of the two connecting shafts are wound with coil springs 28, and the other ends of the coil springs 28 are fixedly connected to the fixed plates. Specifically, when force is applied to the baffle rod 25 to cause the connecting shaft to rotate, the coil spring 28 is wound, and when the force on the baffle rod 25 stops, the coil spring 28 is reset, driving the baffle rod 25 to reset.

[0047] During the specific implementation process, before inserting the plug, force is applied to the baffle rod 25 on one side to make the baffle rod 25 rotate. The baffle rod 25 drives the connecting shaft to rotate the second gear 23, and the transmission wheel 26 on the connecting shaft rotates, and the coil spring 28 is rolled up. Under the action of the belt 27, the other transmission wheel 26 is driven to rotate, thereby making the third gear 24 rotate. The third gear 24 and the third gear 24 adjacent to it rotate in opposite directions. Under the action of another transmission wheel 26 and the belt 27, the other second gear 23 is driven to rotate. The two second gears 23 rotate in opposite directions, thereby increasing the angle between the two baffle rods 25, and then the plug is inserted, and then the force on the baffle rod 25 is stopped. The connecting shaft is reset under the reset force of the coil spring 28, thereby driving the baffle rod 25 to reset. The plug is limited by the baffle rod 25 to prevent the plug from being easily detached by external force.

[0048] Working principle: When the present invention is in use, the socket body 1 is embedded and installed in the wall. When the socket body 1 is not in use, the protective cover 13 is covered. When a child wants to open the protective cover 13 and applies force to the protective cover 13, the rotating shaft 4 needs to rotate. When the rotating shaft 4 rotates, it needs to drive the first gear 5 to rotate. When the first gear 5 rotates and contacts the limit block 7, the first gear 5 needs to squeeze the limit block 7 to move upward, and the inverted L-shaped rod 8 and the pin 9 need to move upward. However, because the pin 9 is inserted into the conical inner sleeve 11 inside the conical cylinder 10 and is located at the center of the three steel balls 12, if the pin 9 moves upward, This will drive the steel ball 12 to generate an upward force, but the steel ball 12 is blocked by the inner wall of the tapered tube 10, causing the steel ball 12 to be unable to move upward. The higher the pin 9 goes, the tighter the steel ball 12 bites the pin 9, thereby limiting the pin 9, causing the limit block 7 to be unable to move upward. At this time, the first gear 5 cannot rotate, causing the rotating shaft 4 to also be unable to rotate, and the protective cover 13 cannot be opened. The protective cover 13 protects the socket hole of the socket body 1, and it is difficult to open the protective cover 13 easily, thereby preventing children from inserting their fingers into the socket hole of the socket body 1, thereby improving the safety of the socket body 1 when in use.

[0049] When the socket body 1 needs to be used, the user squeezes the squeezing plate 18 with two fingers on the same side, and the squeezing plate 18 drives the squeezing rod 17 to move, and the third spring 22 is deformed, so that the second wedge block 19 squeezes the first wedge block 16. With the squeezing of the second wedge block 19, the first wedge block 16 moves downward, and the first wedge block 16 drives the L-shaped frame 15 to move the movable rod 14 downward, so that the second spring 21 is deformed, and the movable rod 14 drives the conical inner sleeve 11 to move downward, and the conical inner sleeve 11 drives the steel balls 12 to move downward. Under the action of the conical cylinder 10, gaps are generated between the steel balls 12, thereby releasing the limit of the pin 9, and then The protective cover 13 applies force, and the protective cover 13 drives the rotating shaft 4 to rotate, so that the first gear 5 rotates, and the first gear 5 squeezes the limiting block 7, so that the connecting rod 6 drives the inverted L-shaped rod 8 and the pin 9 upward. At this time, the first spring 20 is deformed until the protective cover 13 is opened, and the plug is inserted into the jack of the socket body 1. When the force on the squeezing disk 18 stops, the third spring 22 drives the second wedge block 19 to reset, and the second spring 21 drives the conical inner sleeve 11, so that the conical inner sleeve 11 and the first wedge block 16 are reset, so that the steel ball 12 continues to limit the pin 9, so that the protective cover 13 can be opened by applying force to the two squeezing disks 18 at the same time.

[0050] Before inserting the plug, force is applied to the baffle rod 25 on one side to make the baffle rod 25 rotate. The baffle rod 25 drives the connecting shaft to rotate the second gear 23, and the transmission wheel 26 on the connecting shaft rotates, and the coil spring 28 is rolled up. Under the action of the belt 27, the other transmission wheel 26 is driven to rotate, thereby rotating the third gear 24. The third gear 24 and the third gear 24 adjacent to it rotate in opposite directions. Under the action of the other transmission wheel 26 and the belt 27, the other second gear 23 is driven to rotate. The two second gears 23 rotate in opposite directions, thereby increasing the angle between the two baffle rods 25, and then the plug is inserted, and then the force on the baffle rod 25 is stopped. The connecting shaft is reset under the reset force of the coil spring 28, thereby driving the baffle rod 25 to reset. The plug is limited by the baffle rod 25 to prevent the plug from being easily detached by external force.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A built-in wall socket, comprising a socket body (1), characterized in that: The top outer surface of the socket body (1) is provided with an upper extension plate (2), the front outer surface of the upper extension plate (2) is fixedly connected with a rotating seat (3), the outer surface of the rotating seat (3) is rotatably penetrated by a rotating shaft (4), the outer surface of the rotating shaft (4) is fixedly sleeved with a protective cover (13), the outer surface of the rotating shaft (4) is located on both the left and right sides of the protective cover (13) and is fixedly sleeved with a first gear (5), a limit block (7) is movably provided between two adjacent teeth at the top of the first gear (5), and the top outer surface of the limit block (7) is fixedly connected with a connecting rod (2). A connecting rod (6), the top outer surface of the connecting rod (6) is fixedly connected to an inverted L-shaped rod (8), the bottom outer surface of the inverted L-shaped rod (8) is fixedly connected to an insertion pin (9), the left and right opposite outer surfaces of the rotating seat (3) are fixedly connected to a conical cylinder (10), the interior of the conical cylinder (10) is provided with a conical inner sleeve (11), the outer surface of the conical inner sleeve (11) is provided with three accommodating grooves arranged in a circumferential array, the interiors of the three accommodating grooves are provided with steel balls (12), and the insertion pin (9) is movably inserted between the three steel balls (12).

2. The embedded wall socket according to claim 1, characterized in that: The bottom outer surface of the conical inner sleeve (11) is fixedly connected to a movable rod (14), the bottom outer surface of the movable rod (14) is fixedly connected to an L-shaped frame (15), the bottom outer surface of the L-shaped frame (15) is fixedly connected to a first wedge block (16), the left and right outer surfaces of the rotating seat (3) are both movably inserted with extrusion rods (17), the side of the extrusion rod (17) located outside the rotating seat (3) is fixedly connected to an extrusion disk (18), the side of the extrusion rod (17) away from the extrusion disk (18) is fixedly connected to a second wedge block (19), and the second wedge block (19) is movably fitted with the outer surface of the first wedge block (16).

3. The embedded wall socket according to claim 2, characterized in that: The opposite surfaces on the left and right sides of the rotating seat (3) are fixedly connected with transverse plates, the insertion pin (9) movably penetrates the outer surface of the transverse plate, and a first spring (20) is fixedly connected between the transverse plate and the L-shaped rod, and the first spring (20) is sleeved on the outer surface of the insertion pin (9).

4. The embedded wall socket according to claim 3, characterized in that: The left and right opposite surfaces of the rotating seat (3) are fixedly connected with support plates, the movable rod (14) movably penetrates the outer surface of the support plate, a second spring (21) is fixedly connected between the support plate and the conical inner sleeve (11), and the second spring (21) is sleeved on the outer surface of the movable rod (14).

5. The embedded wall socket according to claim 4, characterized in that: A third spring (22) is fixedly connected to the side of the second wedge block (19) away from the first wedge block (16), the other end of the third spring (22) is fixedly connected to the inner side wall of the rotating seat (3), and the third spring (22) is sleeved on the outer surface of the extrusion rod (17).

6. The embedded wall socket according to claim 5, characterized in that: The bottom outer surface of the socket body (1) is fixedly connected to a lower extension plate (29), and the front outer surface of the lower extension plate (29) is rotatably penetrated by two connecting shafts, and one end of the two connecting shafts located outside the extension plate is fixedly sleeved with a stop rod (25).

7. The embedded wall socket according to claim 6, characterized in that: The outer surfaces of the two connecting shafts located inside the lower extension plate (29) are fixedly sleeved with a second gear (23), the interior of the extension plate is rotatably connected to two transmission shafts, the outer surfaces of the two transmission shafts are fixedly sleeved with a third gear (24), and the outer surfaces of the two third gears (24) are movably meshed with each other.

8. The embedded wall socket according to claim 7, characterized in that: The outer surfaces of the two transmission shafts and the two connecting shafts are fixedly sleeved with transmission wheels (26), and belts (27) are wound between the two transmission wheels (26) on the left and between the two transmission wheels (26) on the right.

9. The embedded wall socket according to claim 8, characterized in that: Two fixing plates are fixedly connected inside the lower extension plate (29), and a coil spring (28) is wound around the outer surfaces of the two connecting shafts, and the other end of the coil spring (28) is fixedly connected to the fixing plate.

10. The embedded wall socket according to claim 9, characterized in that: The conical cylinder (10) and the conical inner sleeve (11) are both thin at the top and thick at the bottom.

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