Anti-drop tail plug structure and working method thereof

Abstract

The present invention relates to an anti-drop-off tail plug structure and a working method thereof, characterized in that: the anti-drop-off tail plug structure comprises an upper box body, a lower box body and an electric wire arranged between the upper and lower box bodies, the first end of the electric wire extends out of the upper and lower box bodies, the second end of the electric wire is connected to a metal terminal, a swingable card for clamping a metal contact of a socket is arranged between the upper and lower box bodies, the card is driven to swing by a pull rod, and the pull rod is driven to move along the length direction of the pull rod by a knob arranged on the upper and lower box bodies. The anti-drop-off tail plug structure of the present invention can realize the function of locking or releasing the tail plug and the mains power socket by rotating the knob, which is easy to operate, and can improve the firmness of the connection between the tail plug and the mains power socket after locking, thereby avoiding accidental power failure.

Description

Technical field:

[0002] The invention relates to an anti-drop-off tail plug structure and a working method thereof. Background technology:

[0004] At present, power plugs are widely used to connect power sources and electrical equipment. When some important equipment (such as computer rooms, data centers, operating rooms, etc. that require continuous power supply) is in operation, sudden and unexpected power outages will cause serious losses.

[0005] However, most of the plugs on the market are ordinary plugs, which are easy to loosen or slip when the plugs are shaken or accidentally hit by external forces, causing poor contact or inability to connect and power outage. Summary of the invention:

[0007] In view of the above problems, the present invention proposes an anti-drop-off tail plug structure and a working method thereof. The anti-drop-off tail plug structure is reasonably designed, which is beneficial to improving the connection firmness between the tail plug and the input port of the device end, ensuring the normal power supply of the device end and avoiding accidental power outages.

[0008] The anti-drop-off tail plug structure of the present invention is characterized by comprising an upper box body, a lower box body and an electric wire arranged between the upper and lower box bodies, the first end of the electric wire extends out of the upper and lower box bodies, the second end of the electric wire is connected to the metal terminal, and a swingable card for clamping the metal contact of the socket is provided between the upper and lower box bodies, the card is driven to swing by a pull rod, and the pull rod is driven to move along the length direction of the pull rod by a knob provided on the upper and lower box bodies.

[0009] Furthermore, a convex button is provided on the first end surface of the pull rod, a sliding groove for driving the convex button to move is provided on the inner wall surface of the knob, and a concave groove for limiting a position of a card is provided on the second end of the pull rod.

[0010] Furthermore, the outer cover of the above-mentioned electric wire is provided with a wire fixing cover, the lower part of the outer surface of the fixing cover is provided with an external buckle, the external buckle is limitedly matched with the notch on the lower box body, and the upper part of the wire fixing cover is provided with a U-shaped guide groove for guiding the first end of the pull rod.

[0011] Furthermore, when the upper and lower box bodies are covered, the first end forms a cylindrical annular sleeve and a conical annular sleeve, the knob is sleeved on the periphery of the cylindrical annular sleeve, the cylindrical annular sleeve is provided with a through hole for the convex button to pass through, and the conical annular sleeve is provided with a rectangular limiting groove for limiting the wire connector.

[0012] Furthermore, the upper and lower boxes are provided with limiting grooves on the sides of the card for limiting the swing of the card.

[0013] Furthermore, the knob comprises two halves, namely a first half and a second half, and a convex column and a concave hole cooperating with the convex column are provided on opposite surfaces of the two halves, and the slide groove is provided on the inner wall surface of the first half, and the slide groove is arranged circumferentially along the inner wall surface of the first half and has a drop in the axial direction; the inner wall surface of the second half is densely covered with teeth and grooves, and the cylindrical annular sleeve is provided with a spring sheet cooperating with the teeth and grooves to increase the resistance of the knob.

[0014] Furthermore, the groove depths at the head and tail ends of the tooth grooves are deeper than the groove depths at other positions.

[0015] Furthermore, the card is a manganese steel sheet, the through hole in the center of which is used to pass the metal contact of the socket is slightly larger than the metal contact of the socket, and the side of the card has a convex portion that sinks into the concave groove.

[0016] The working method of the anti-drop-off tail plug structure of the present invention is characterized in that: the anti-drop-off tail plug structure comprises an upper box body, a lower box body and an electric wire arranged between the upper and lower box bodies, the first end of the electric wire extends out of the upper and lower box bodies, the second end of the electric wire is connected to the metal terminal, and a swingable card for clamping the metal contact of the socket is arranged between the upper and lower box bodies, the card is driven to swing by a pull rod, and the pull rod is driven by a knob arranged on the upper and lower box bodies to move along the length direction of the pull rod; when working, by turning the knob on the upper and lower box bodies Rotate it so that the knob drives the pull rod to move in the direction of the pull rod's length, and the front end of the pull rod drives the card to swing, so that the card and the metal contacts of the socket are misaligned, and the card is stuck in the metal contacts of the socket, making it difficult to pull out the socket and the tail plug; when the tail plug needs to be pulled out of the socket, turn the knob in the opposite direction to drive the pull rod to move in the direction of the pull rod's length, so that the front end of the pull rod drives the card to align, and the card is perpendicular to the metal contacts of the socket, and the card no longer is stuck in the metal contacts of the socket, so that the socket and the tail plug can be easily pulled out.

[0017] Furthermore, the above-mentioned card is a manganese steel sheet, and the through hole in the center of the card for passing the metal contact of the socket is slightly larger than the metal contact of the socket, and the side of the card has a convex portion that is sunken into a recessed groove; when the card and the metal contact of the socket are misaligned, the inner wall of the card through hole is stuck on the side of the metal contact of the socket, thereby increasing the resistance to relative movement between the two, making it difficult to pull the tail plug out of the socket.

[0018] The anti-drop-off tail plug structure of the present invention can realize the function of locking or releasing the tail plug and the mains power socket by rotating the rotation knob, which is easy to operate. After locking, the firmness of the connection between the tail plug and the mains power socket can be improved, avoiding accidental power failure. Description of the drawings:

[0020] Figure 1 is a stereogram of the present invention;

[0021] Figure 2 is an exploded view of the present invention;

[0022] Figure 3 is an exploded view of the present invention;

[0023] Figure 4 It is a stereoscopic image of the upper and lower boxes in a disassembled state from one perspective;

[0024] Figure 5 It is a stereogram of the upper and lower boxes in the exploded state from another perspective;

[0025] Figure 6 This is a stereogram from another perspective of the knob’s exploded state;

[0026] Figure 7 This is a stereogram from another perspective of the knob’s exploded state;

[0027] Figure 8 is a three-dimensional diagram of the wire fixing cover;

[0028] Fig. 9 It is a three-dimensional picture of the card;

[0029] Fig.10 It is a three-dimensional diagram of the tie rod;

[0030] Fig.11 It is a three-dimensional diagram of the connection between the card and the pull rod;

[0031] Fig.12 , Fig.13 It is a three-dimensional exploded view of a pull rod and a card according to another embodiment. Specific implementation method:

[0033] The anti-drop-off tail plug structure of the present invention comprises an upper box body 1, a lower box body 2 and an electric wire 3 arranged between the upper and lower box bodies, the first end of the electric wire 3 extends out of the upper box body 1 and the lower box body 2, the second end of the electric wire 3 is connected to a metal terminal 4, and a swingable card 5 for clamping the metal contact of the socket is arranged between the upper and lower box bodies, the card 5 is driven to swing by a pull rod 6, and the pull rod 6 is driven to move along the length direction of the pull rod by a knob 7 arranged on the upper and lower box bodies.

[0034] The wire of the present application is a three-core wire, and the second end of each core wire is connected to a metal terminal 4. Each metal terminal 4 is installed and limited on a core frame A located on the upper box body 1 and the lower box body 2. The core frame A structure is a conventional structure in the prior art and will not be described here.

[0035] The socket metal contact refers to a metal leg of the three-core socket, and its cross-sectional shape is rectangular. The through hole 501 of the card 5 is slightly larger than the socket metal contact. When the socket metal contact is perpendicular to the card 5, the socket metal contact can move smoothly in the through hole 501 of the card 5. When the card 5 is driven by the pull rod 6 to swing down and tilt (or misalignment), the inner wall of the through hole 501 is pressed or stuck on the surface of the socket metal contact. At the same time, the pull rod and the knob are not easy to reset when in the locking position, so that the card 5 remains in a state of tilting and clamping the socket metal contact, and the tail plug and the socket are kept in a tight state.

[0036] The upper box body 1 and the lower box body 2 can be fastened by buckles or screws.

[0037] In order to realize the movement of the pull rod 6 along the length direction of the pull rod driven by the knob 7, a convex knob 8 is provided on the first end surface of the pull rod 6, a sliding groove 9 for driving the convex knob 8 to move is provided on the inner wall surface of the knob 7, and a concave groove 10 for limiting the position of the card 5 is provided on the second end of the pull rod 6 (the concave groove 10 can be as shown in FIG. Fig.10 The groove body located at the side of the pull rod 6 as shown can also be as follows Fig.12 , 13 As shown in the figure, the inner groove body is located at the head end of the pull rod 6. Although the shapes or structures of the two pull rods 6 are slightly different, they both work by pulling the card through the recessed groove by the pull rod). The slide groove 9 is arranged circumferentially along the inner wall surface of the first half body 701 and has a drop in the axial direction; the slide groove 9 has three sections, the front and rear sections are shorter and are parallel to the normal plane of the axis of the knob 7, and the middle section is longer and forms an angle with the normal plane of the axis of the knob 7. The spacing between the front and rear sections of the slide groove 9 is the distance that the pull rod 6 moves along its length direction, and the positions of the convex button 8 in the front and rear sections of the slide groove 9 are the locking and unlocking positions.

[0038] In order to prevent the electric wires from affecting the movement of the pull rod 6, the outer cover of the electric wires is provided with a wire fixing cover 11, and the lower part of the outer surface of the fixing cover is provided with an external buckle 12, and the external buckle is limitedly matched with the notch 13 on the lower box body, and the upper part of the wire fixing cover 11 is provided with a U-shaped guide groove 14 for guiding the first end of the pull rod 6. The external buckle 12 is buckled into the notch 13 on the lower box body, so that the three core wires of the electric wire can be stably positioned therein, avoiding the uncertain movement of the three core wires and affecting the movement of the pull rod. The U-shaped guide groove 14 is also conducive to the movement of the pull rod along a determined trajectory, thereby ensuring the accuracy of locking and unlocking.

[0039] In order to realize the action of the knob 7 driving the pull rod 6, when the upper and lower box bodies are closed, the first end forms a cylindrical annular sleeve 15 and a conical annular sleeve 16, and the knob 7 is sleeved on the outer periphery of the cylindrical annular sleeve 15, and the cylindrical annular sleeve 15 is provided with a through hole 17 for the convex button 8 to pass through, and the conical annular sleeve 16 is provided with a rectangular limiting groove 18 for limiting the wire connector 19. The wire connector 19 can be better limited by the rectangular limiting groove 18, and the inner hole channel of the wire connector 19 fixes the wire.

[0040] Furthermore, in order to achieve stable movement of the pull rod, the two sides of the pull rod are provided with a limiting plate 20 (such as Fig.10 as shown), while the other Fig.12 , 13 The embodiment does not have the limit plate, and the limit plate is an optional component; Fig.12 , 13 and Fig.10 , 11 The cards swing in different directions.

[0041] Furthermore, in order to facilitate installation, the knob 7 includes two halves, namely a first half 701 and a second half 702. The first half 701 and the second half 702 are buckled with the slot by buckles, and can also be locked by screws. A convex column 703 and a concave hole 704 cooperating with the convex column are provided on the opposite surfaces of the two halves. The convex column 703 and the concave hole 704 can achieve better positioning. The slide groove 9 is provided on the inner wall surface of the first half. The slide groove 9 is arranged circumferentially along the inner wall surface of the first half 701 and has a drop in the axial direction. The axial drop value is the moving distance of the pull rod 6; the inner wall surface of the second half 702 is densely covered with tooth grooves 705, and the cylindrical annular sleeve 15 is provided with a spring piece 21 cooperating with the tooth groove to increase the resistance of the knob, thereby avoiding unconscious human intervention. When turned, the spring piece 21 can be slightly stuck in the tooth groove 705, and a certain amount of rotational force is required to turn the knob, which also avoids the possibility of naughty children turning it at will; in order to have different position senses at the two extreme positions (locked and unlocked positions) so that people can easily perceive the position, the groove depth at the head and tail ends of the above-mentioned tooth groove is deeper than the groove depth at the middle position, and the groove depth can be 1.5-2 times the groove depth at the middle position. The groove depth at the head and tail ends of the tooth groove is deeper than the groove depth at the middle position, which not only makes it easier for people to perceive the locked and unlocked positions, but also avoids the possibility of naughty children turning it at will. The spring piece 21 is a through groove provided on the cylindrical annular sleeve 15, and an elastic arm is suspended on a side wall in the through groove, and a convex key extending into the tooth groove 705 is provided at the free end of the elastic arm.

[0042] Furthermore, in order to better hold the metal contact of the socket and achieve locking, the above-mentioned card is a manganese steel sheet, and the through hole 501 in the center for passing the metal contact of the socket is slightly larger than the metal contact of the socket. The side of the card has a protrusion 502 that is sunken into the recessed groove (the protrusion 502 is also an optional component). Since the card is a manganese steel sheet, it has good strength and rigidity, so it is not easy to deform when the metal contact of the socket is held, and the resistance to pulling out is large, and the effect is good. In addition to being limited by the recessed groove, the card is also provided with limiting grooves on the upper and lower box bodies to limit its up and down, front and back movements. In addition to the card 5, metal terminal 4, and core wire, other connectors of the present application are made of plastic.

[0043] The working method of the anti-falling tail plug structure of the present invention comprises an upper box body, a lower box body and an electric wire arranged between the upper and lower box bodies, a first end of the electric wire extends out of the upper and lower box bodies, a second end of the electric wire is connected to a metal terminal, and a swingable card for clamping a metal contact of a socket is arranged between the upper and lower box bodies, the card is driven to swing by a pull rod, and the pull rod is driven to move along the length direction of the pull rod by a knob arranged on the upper and lower box bodies; when working, the knobs on the upper and lower box bodies are rotated, so that the knob drives the pull rod to move in the length direction of the pull rod, so that the front end of the pull rod drives the card to swing, so that the card and the metal contact of the socket are misaligned, the card clamps the metal contact of the socket, and the socket and the tail plug are difficult to be pulled out; and when the tail plug needs to be pulled out from the socket, the knob is rotated in the opposite direction to drive the pull rod to move in the length direction of the pull rod, so that the front end of the pull rod drives the card to be aligned, the card is perpendicular to the metal contact of the socket, and the card no longer clamps the metal contact of the socket, so that the socket and the tail plug can be easily pulled out.

[0044] Furthermore, the above-mentioned card is a manganese steel sheet, and the through hole in the center of the card for passing the metal contact of the socket is slightly larger than the metal contact of the socket, and the side of the card has a convex portion that is sunken into a recessed groove; when the card and the metal contact of the socket are misaligned, the inner wall of the card through hole is stuck on the side of the metal contact of the socket, thereby increasing the resistance to relative movement between the two, making it difficult to pull the tail plug out of the socket.

[0045] The anti-drop-off tail plug structure of the present invention can realize the function of locking or releasing the tail plug and the mains power socket by rotating the rotation knob, which is easy to operate. After locking, the firmness of the connection between the tail plug and the mains power socket can be improved, avoiding accidental power failure.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. An anti-drop tail plug structure, characterized in that: It comprises an upper box body, a lower box body and an electric wire arranged between the upper and lower box bodies, the first end of the electric wire extends out of the upper and lower box bodies, the second end of the electric wire is connected to the metal terminal, a swingable card for clamping the metal contact of the socket is arranged between the upper and lower box bodies, the card is driven to swing by a pull rod, and the pull rod is driven to move along the length direction of the pull rod by a knob arranged on the upper and lower box bodies; a convex button is arranged on the first end surface of the pull rod, a sliding groove for driving the convex button to move is arranged on the inner wall surface of the knob, and a recessed groove for limiting the card is arranged on the second end of the pull rod; an outer cover of the electric wire is provided with a wire fixing cover, an outer buckle is arranged on the lower part of the outer surface of the fixing cover, the outer buckle cooperates with the notch on the lower box body, and the upper part of the wire fixing cover is provided with a A U-shaped guide groove at the first end of the guide pull rod; when the upper and lower box bodies are closed, the first end forms a cylindrical annular sleeve and a conical annular sleeve, the knob is sleeved on the periphery of the cylindrical annular sleeve, the cylindrical annular sleeve is provided with a through hole for the convex button to pass through, and the conical annular sleeve is provided with a rectangular limiting groove for limiting the wire connector; the knob comprises two halves, namely a first half and a second half, a convex column and a concave hole cooperating with the convex column are provided on the opposite surfaces of the two halves, the inner wall surface of the first half is provided with the sliding groove, the sliding groove is arranged circumferentially along the inner wall surface of the first half, and has a drop in the axial direction; the inner wall surface of the second half is densely covered with teeth, and the cylindrical annular sleeve is provided with a spring sheet cooperating with the teeth to increase the resistance of the knob.

2. The anti-drop-off tail plug structure according to claim 1, characterized in that: The upper and lower boxes are provided with limiting grooves at the sides of the card for limiting the swing of the card.

3. The anti-drop-off tail plug structure according to claim 1, characterized in that: The groove depths at the head end and the tail end of the tooth groove are deeper than the groove depths at other positions.

4. The anti-drop-off tail plug structure according to claim 1, characterized in that: The card is a manganese steel sheet, and the through hole in the center of the card for passing the metal contact of the socket is slightly larger than the metal contact of the socket.

5. A working method of an anti-drop-off tail plug structure, characterized in that: The anti-drop-off tail plug structure comprises an upper box body, a lower box body and an electric wire arranged between the upper and lower box bodies, the first end of the electric wire extends out of the upper and lower box bodies, the second end of the electric wire is connected to the metal terminal, and a swingable card for clamping the metal contact of the socket is arranged between the upper and lower box bodies, the card is driven to swing by a pull rod, and the pull rod is driven to move along the length direction of the pull rod by a knob arranged on the upper and lower box bodies; a convex button is arranged on the first end surface of the pull rod, and a sliding groove for driving the convex button to move is arranged on the inner wall surface of the knob, and the pull rod is driven to rotate ... The second end of the rod is provided with a recessed groove of a limit card; the outer cover of the wire is provided with a wire fixing cover, the lower part of the outer surface of the fixing cover is provided with an external buckle, the external buckle is limited and matched with the notch on the lower box body, and the upper part of the wire fixing cover is provided with a U-shaped guide groove for guiding the first end of the pull rod; when the upper and lower box bodies are covered, the first end forms a cylindrical annular sleeve and a conical annular sleeve, the knob is sleeved on the outer periphery of the cylindrical annular sleeve, the cylindrical annular sleeve is provided with a through hole for the convex button to pass through, and the conical A rectangular limiting groove is arranged in the annular sleeve for limiting the wire connector; the knob comprises two halves, namely a first half and a second half, and a convex column and a concave hole matched with the convex column are arranged on the opposite surfaces of the two halves, and the sliding groove is arranged on the inner wall of the first half, and the sliding groove is arranged along the circumferential direction of the inner wall of the first half and has a drop in the axial direction; the inner wall of the second half is densely covered with tooth grooves, and the cylindrical annular sleeve is provided with a spring sheet matched with the tooth groove to increase the resistance of the knob; when working, by turning the knobs on the upper and lower box bodies The knob is rotated to drive the pull rod to move in the direction of the length of the pull rod, so that the front end of the pull rod drives the card to swing, so that the card and the metal contact of the socket are misaligned, and the card is stuck in the metal contact of the socket, making it difficult to pull out the socket and the tail plug; when the tail plug needs to be pulled out of the socket, the knob is rotated in the opposite direction to drive the pull rod to move in the direction of the length of the pull rod, so that the front end of the pull rod drives the card to align, and the card is perpendicular to the metal contact of the socket, and the card no longer sticks to the metal contact of the socket, so that the socket and the tail plug can be easily pulled out.

6. The working method of the anti-drop-off tail plug structure according to claim 5, characterized in that: The card is a manganese steel sheet, the through hole in the center of which is used to pass the metal contact of the socket is slightly larger than the metal contact of the socket, and the side of the card has a convex portion that sinks into a recessed groove; when the card and the metal contact of the socket are misaligned, the inner wall of the card through hole is stuck on the side of the metal contact of the socket, increasing the resistance to relative movement between the two, making it difficult to pull the tail plug out of the socket.

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