Improved copper pin folding power plug

Abstract

The utility model discloses an improved copper pin folding type power plug, which comprises a copper pin folding type power plug, and a socket is arranged in front of the copper pin folding type power plug. A half internal thread groove is formed in the lower side of the front end face of the copper pin folding type power plug, a half thread sleeve is arranged in the half internal thread groove, internal threads of the half internal thread groove are matched with external threads of the half thread sleeve, and a vacuum suction cup is fixedly arranged on the face, facing a socket, of the half thread sleeve. A vacuum inner cavity groove communicated with the interior of the vacuum suction cup is formed in one side of the interior of the half-thread sleeve, a piston is arranged in the vacuum inner cavity groove, and the outer surface of the piston is attached to the inner wall of the vacuum inner cavity groove, preferably, the outer surface of the piston is attached to the inner wall of the vacuum inner cavity groove. According to the utility model, the copper pin folding type power plug can be fixed on the outer surface of the socket, and the situations that the current source is cut off and the plug falls to the ground due to the loosening of the plug in the later use process can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of plugs, in particular to an improved copper-foot foldable power plug. Background Art

[0002] A power plug refers to a device that connects electrical appliances and other devices to a power source. Power sockets and plugs vary in appearance, grade, size and type depending on the country and region. Existing power plugs are also divided into copper pin type power plugs and aluminum pin type power plugs according to the different materials of the conductive plugs on their outer surfaces. In order to increase their safety, the conductive plugs of some existing types of power plugs are changed to foldable type to prevent damage to the conductive plugs due to impact. Such a power plug with a copper conductive plug and a foldable conductive plug can be called an improved copper pin foldable power plug;

[0003] The existing power plug has the problem that when the plug is inserted into the plug board halfway or pulled out of the plug board halfway, the metal conductive plug on the plug contacts the conductive sheet inside the plug board to make it charged, and the plug outside the jack is exposed. At this time, during the action of inserting and pulling out the plug, the thumb and index finger of the human body are very likely to contact the two sets of metal conductive plugs due to misoperation, causing electric shock accidents. Therefore, due to the structural defects, the traditional plug is not conducive to the use of slow-moving elderly people or people with weak awareness of electricity safety or children, and there is a hidden danger of electric shock. Patent No. CN11682 in the prior art 6423A, its name is an anti-electric shock plug, by adopting an insulating sleeve sliding hole provided inside the front end of the body, a plug mounting hole provided at the top of the insulating sleeve sliding hole, a conductive plug installed in the plug mounting hole, an insulating sleeve installed on the conductive plug, a special-shaped spring installed between the insulating sleeve and the insulating sleeve sliding hole, the rear end of the body is sealed with a shell, the insulating sleeve can slide freely on the conductive plug, when the plug is inserted into the socket on the plug board, the conductive plug is hidden by the insulating sleeve, preventing the user from accidentally touching the charged conductive plug and causing an electric shock accident, thereby solving the above-mentioned problem.

[0004] However, when such a power plug is inserted into a socket installed on the wall and used for a long time, the connection between the two may fall off or loosen, causing the power plug to fall to the ground or the power supply to be cut off; therefore, the existing needs are not met, and an improved copper-foot foldable power plug is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an improved copper-pin foldable power plug to solve the problem raised in the above-mentioned background technology that when the power plug is inserted into a socket installed on the wall and used for a long time, the connection between the two may fall off or loosen, thereby causing the power plug to fall to the ground or the power supply to be cut off.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an improved copper-foot foldable power plug, comprising a copper-foot foldable power plug, wherein a socket is provided in front of the copper-foot foldable power plug;

[0007] A semi-internal thread groove is provided on the lower side of the front end surface of the copper-foot foldable power plug, a semi-thread sleeve is provided inside the semi-internal thread groove, the internal thread of the semi-internal thread groove matches the external thread of the semi-thread sleeve, and a vacuum suction cup is fixedly provided on the surface of the semi-thread sleeve facing the socket.

[0008] Preferably, a vacuum inner cavity groove communicating with the interior of the vacuum suction cup is provided on one side of the interior of the semi-threaded sleeve, a piston is provided inside the vacuum inner cavity groove, and an outer surface of the piston is in contact with the inner wall of the vacuum inner cavity groove.

[0009] Preferably, a square groove is provided in the middle position of the inner wall at the rear end of the vacuum cavity groove, and a square rod is movably connected inside the square groove and fixed between its front end and the piston. The cross-sectional shape of the square groove is square, and the outer surface of the square rod fits with the inner wall of the square groove.

[0010] Preferably, a connecting rod is fixedly provided at the middle position of the rear end surface of the square rod, and the rear end of the connecting rod is connected to a manual rotating handle located on the outside of the copper-foot foldable power plug.

[0011] Preferably, the outer surface of the connecting rod is provided with a plurality of cross-section conical annular grooves in sequence from left to right, and an engaging arc plate is provided on the upper and lower parts of the connecting rod, and the engaging arc plate is provided with a plurality of cross-section conical engaging heads whose shapes match the cross-section shapes of the cross-section conical annular grooves facing the cross-section conical annular grooves;

[0012] A spring is connected to both sides of the outer surface of the cross-section conical annular groove.

[0013] Preferably, an external threaded sleeve connected to the semi-threaded sleeve by a thread is installed on one side of the outer surface of the semi-threaded sleeve, a bevel ring is fixedly provided at the middle position of the inner wall of the external threaded sleeve, a rectangular block is fixedly provided on the surface of the engaging arc plate facing the bevel ring, and the surface of the rectangular block facing the bevel ring and the surface of the bevel ring facing the rectangular block are both inclined surfaces.

[0014] Preferably, a circular cover plate is provided at the rear of the external threaded sleeve and is located on the rear end surface of the semi-threaded sleeve, and the semi-threaded sleeve and the circular cover plate are fixed by screws.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model inserts the copper-foot foldable power plug into the socket on the wall. First, the left hand is used to hold the copper-foot foldable power plug so that it fits with the socket as much as possible to keep the power flowing. Then, the right hand is used to rotate the semi-threaded sleeve. Through the threaded structure, the rotating semi-threaded sleeve can move forward, so that the vacuum suction cup located at the front end of the semi-threaded sleeve fits with the outer surface of the socket. Then, the air inside the vacuum suction cup is extracted by pulling the connecting rod outward, so that the inside of the vacuum suction cup becomes hollow, so that the copper-foot foldable power plug is fixed to the outer surface of the socket. The above technical solution can prevent the copper-foot foldable power plug from falling off or loosening, thereby improving the safety of the copper-foot foldable power plug.

[0017] 2. The utility model can fix the connecting rod that has been pulled outward for a certain distance by manually rotating the external threaded sleeve, so as to prevent the connecting rod from moving forward without authorization during later use, thereby causing the fixation to loosen. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a partial internal view of the overall structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 A magnified view of the structure at center A;

[0021] Figure 4 For this utility model Figure 3 A magnified view of the structure at point B.

[0022] In the figure: 1. Copper-foot foldable power plug; 2. Socket; 3. Semi-threaded sleeve; 4. Vacuum suction cup; 5. Vacuum inner cavity groove; 6. Square groove; 7. Piston; 8. Square rod; 9. Connecting rod; 10. Cross-section conical annular groove; 11. Engaging arc plate; 12. Spring; 13. Rectangular block; 14. Bevel ring; 15. External threaded sleeve; 16. Semi-internal threaded groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] The copper-foot foldable power plug 1 (model L.66W), the socket 2 (model MD86ZS) and the spring 12 (model JX110) mentioned in the utility model can be purchased from the market or obtained by private customization.

[0025] See also Figures 1 to 4 The utility model provides an embodiment: an improved copper-foot foldable power plug, comprising a copper-foot foldable power plug 1, characterized in that: a socket 2 is provided in front of the copper-foot foldable power plug 1;

[0026] A semi-internal thread groove 16 is provided on the lower side of the front end surface of the copper-foot foldable power plug 1, and a semi-thread sleeve 3 is provided inside the semi-internal thread groove 16. The internal thread of the semi-internal thread groove 16 matches the external thread of the semi-thread sleeve 3, and a vacuum suction cup 4 is fixedly provided on the surface of the semi-thread sleeve 3 facing the socket 2.

[0027] A vacuum inner cavity groove 5 communicating with the interior of the vacuum suction cup 4 is provided on one side of the interior of the semi-threaded sleeve 3, a piston 7 is provided inside the vacuum inner cavity groove 5, and the outer surface of the piston 7 is in contact with the inner wall of the vacuum inner cavity groove 5; a square groove 6 is provided in the middle position of the inner wall at the rear end of the vacuum inner cavity groove 5, and a square rod 8 fixed between its front end and the piston 7 is movably connected inside the square groove 6, the cross-sectional shape of the square groove 6 is square, and the outer surface of the square rod 8 is in contact with the inner wall of the square groove 6; a connecting rod 9 is fixed in the middle position of the rear end surface of the square rod 8, and the rear end of the connecting rod 9 is connected to a manual rotating handle located on the outside of the copper-foot foldable power plug 1; when in use, the copper-foot foldable power plug 1 is inserted into the interior of the socket 2 on the wall, and then the copper-foot foldable power plug 1 is supported by the left hand. The power plug 1 is fixed to the socket 2 as much as possible to keep the power flowing. Then, the right hand is used to hold the rotating handle. When the rotating handle is rotated, the connecting rod 9 fixed thereto will also rotate. When the connecting rod 9 rotates, the square rod 8 fixed thereto will also rotate. Since the square rod 8 is located inside the square groove 6 inside the semi-threaded sleeve 3, and the outer surface of the square rod 8 fits with the inner wall of the square groove 6, when the square rod 8 rotates, the semi-threaded sleeve 3 will rotate accordingly. When the semi-threaded sleeve 3 rotates, it can move forward and backward through the threaded structure. When the semi-threaded sleeve 3 moves forward, the vacuum suction cup 4 located at the front end surface of the semi-threaded sleeve 3 will contact the socket 2. When the semi-threaded sleeve 3 can no longer move forward, it stops rotating.

[0028] Then, the connecting rod 9 is pulled outward. As the connecting rod 9 moves, the piston 7 connected to it through the square rod 8 will move backward inside the vacuum inner cavity groove 5 which is communicated with the inside of the vacuum suction cup 4. As the piston 7 moves, the air inside the vacuum suction cup 4 will be extracted. Through the vacuum generated during the extraction process, the copper-foot foldable power plug 1 can be fixed to the outer surface of the socket 2. The above technical solution can prevent the copper-foot foldable power plug 1 from falling off, thereby increasing the safety of the copper-foot foldable power plug 1.

[0029] The outer surface of the connecting rod 9 is provided with a plurality of cross-section conical annular grooves 10 in sequence from left to right, and a bite arc plate 11 is provided at the upper and lower parts of the connecting rod 9, and the bite arc plate 11 is provided with a plurality of cross-section conical bite heads whose shapes match the cross-section shapes of the cross-section conical annular grooves 10 facing the cross-section conical annular grooves 10;

[0030] A spring 12 is connected to both sides of the outer surface of the conical annular groove 10 of the cross section; an external threaded sleeve 15 connected to it by a thread is installed on one side of the outer surface of the semi-threaded sleeve 3, and a bevel ring 14 is fixedly provided at the middle position of the inner wall of the external threaded sleeve 15, and a rectangular block 13 is fixedly provided on the surface of the occlusal arc plate 11 facing the bevel ring 14, and the surface of the rectangular block 13 facing the bevel ring 14 and the surface of the bevel ring 14 facing the rectangular block 13 are both inclined surfaces; when the copper-foot foldable power plug 1 is fixed, the external threaded sleeve 15 located on the outer surface of the semi-threaded sleeve 3 is manually rotated, and the external threaded sleeve 15 rotated by the thread structure can move back and forth on the outer surface of the semi-threaded sleeve 3, and the external threaded sleeve 15 moves forward with it during the forward movement The fixed bevel ring 14 will also move with it. When the bevel ring 14 moves forward, the two rectangular blocks 13 in front of it will be pushed inward. When the rectangular blocks 13 move inward, the occlusal arc plate 11 fixed with it will also move with it. When the occlusal arc plate 11 moves inward, it will squeeze the two springs 12. At the same time, the cross-sectional conical occlusal head located on the outer surface of the occlusal arc plate 11 will be stuck in the cross-sectional conical annular groove 10 located on the outer surface of the connecting rod 9, so as to fix the connecting rod 9. By fixing the connecting rod 9, it can be prevented that the connecting rod 9 moves forward without authorization during the later use, thereby causing the fixation to loosen.

[0031] When it is necessary to release the fixation of the copper-foot foldable power plug 1, the external threaded sleeve 15 is rotated in the opposite direction to move the external threaded sleeve 15 back to its original position. When the extrusion of the external threaded sleeve 15 is lost, the bite arc plate 11 can be pushed back to its original position by the reaction force of the extruded spring 12, so as to release the fixation of the connecting rod 9. Then, the piston 7 is pushed forward to push the air back into the inside of the vacuum suction cup 4, so as to release the vacuum state inside the vacuum suction cup 4. Then, the half-threaded sleeve 3 is rotated in the opposite direction to release the release between the vacuum suction cup 4 located at the front end surface of the half-threaded sleeve 3 and the socket 2. At this time, the fixation is released, and then the copper-foot foldable power plug 1 can be directly removed.

[0032] A circular cover plate is provided at the rear of the external threaded sleeve 15 and is located on the rear end face of the semi-threaded sleeve 3, and the semi-threaded sleeve 3 and the circular cover plate are fixed by screws; when the internal structure of the semi-threaded sleeve 3 fails, the internal structure of the semi-threaded sleeve 3 can be repaired by removing the circular cover plate.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An improved copper pin foldable power plug, comprising a copper pin foldable power plug (1), characterized in that: A socket (2) is provided in front of the copper-foot foldable power plug (1); A semi-internal thread groove (16) is provided on the lower side of the front end surface of the copper-foot foldable power plug (1), a semi-thread sleeve (3) is provided inside the semi-internal thread groove (16), the internal thread of the semi-internal thread groove (16) matches the external thread of the semi-thread sleeve (3), and a vacuum suction cup (4) is fixedly provided on the surface of the semi-thread sleeve (3) facing the socket (2).

2. The improved copper-pin foldable power plug according to claim 1, characterized in that: A vacuum inner cavity groove (5) communicating with the interior of the vacuum suction cup (4) is provided on one side of the interior of the semi-threaded sleeve (3); a piston (7) is provided inside the vacuum inner cavity groove (5), and the outer surface of the piston (7) is in contact with the inner wall of the vacuum inner cavity groove (5).

3. The improved copper-pin foldable power plug according to claim 2, characterized in that: A square groove (6) is provided in the middle of the inner wall at the rear end of the vacuum inner cavity groove (5); a square rod (8) is movably connected inside the square groove (6) and fixed between its front end and the piston (7); the cross-sectional shape of the square groove (6) is a square, and the outer surface of the square rod (8) is in contact with the inner wall of the square groove (6).

4. The improved copper-pin foldable power plug according to claim 3, characterized in that: A connecting rod (9) is fixedly provided at the middle position of the rear end surface of the square rod (8), and the rear end of the connecting rod (9) is connected to a manual rotating handle located outside the copper-foot foldable power plug (1).

5. The improved copper-pin foldable power plug according to claim 4, characterized in that: The outer surface of the connecting rod (9) is provided with a plurality of cross-sectional conical annular grooves (10) in sequence from left to right, and an engaging arc plate (11) is provided above and below the connecting rod (9), and the engaging arc plate (11) is provided with a plurality of cross-sectional conical engaging heads whose shapes match the cross-sectional shapes of the cross-sectional conical annular grooves (10) facing the cross-sectional conical annular grooves (10); A spring (12) is connected to both sides of the outer surface of the cross-section conical annular groove (10).

6. The improved copper-pin foldable power plug according to claim 5, characterized in that: An external threaded sleeve (15) connected to the semi-threaded sleeve (3) via a thread is installed on one side of the outer surface thereof, a bevel ring (14) is fixedly provided at the middle position of the inner wall of the external threaded sleeve (15), a rectangular block (13) is fixedly provided on the surface of the engaging arc plate (11) facing the bevel ring (14), and both the surface of the rectangular block (13) facing the bevel ring (14) and the surface of the bevel ring (14) facing the rectangular block (13) are inclined surfaces.

7. The improved copper pin foldable power plug according to claim 6, characterized in that: A circular cover plate is provided behind the external threaded sleeve (15) and is located on the rear end surface of the semi-threaded sleeve (3), and the semi-threaded sleeve (3) and the circular cover plate are fixed by screws.

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