Self-locking anti-falling electrical plug and socket

Abstract

The utility model belongs to the technical field of electronics, and discloses a self-locking anti-falling electrical plug and socket. The outer surface of the plug seat is connected with a driving lever, the driving lever swings relative to the plug seat, and the plug body and the jack are plugged through the swinging of the driving lever. When the shifting rod swings relative to the plug seat, the shifting rod drives the plug seat to move up and down, so that the plug of the plug seat is inserted into or separated from the jack of the socket, and the effects of labor saving and high efficiency are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronics, in particular to a self-locking and anti-falling electrical plug and socket. Background Art

[0002] At present, the widely used electrical plugs generally adopt a structure that when connecting, the plug is directly inserted into the socket, and when disconnecting, the plug is pulled out. For high-power electrical applications, the plug and the socket are required to be tightly connected. If the plug is inserted relatively laboriously or if there is human negligence, it is easy to cause the plug to be not inserted tightly, resulting in loose or poor contact between the plug and the socket, causing the plug connection to spark or continue to heat up, and then cause damage to the electrical appliance, and more dangerously, fire. The existing self-locking plugs on the market have complex structures, high manufacturing costs, and are difficult to repair. They are not suitable for low-cost applications and are not suitable for widespread use. Utility Model Content

[0003] In order to solve the above-mentioned defects, the utility model provides a self-locking and anti-dropping electrical plug and socket, which realizes a tight connection between the plug body and the socket hole of the socket by applying force through a lever, thereby reducing the occurrence of electrical appliance damage.

[0004] In order to solve the above technical problems, the utility model provides a self-locking and anti-dropping electrical plug, including a plug socket and a plug body integrally arranged at the bottom of the plug socket, the plug body being used to be plugged into the socket of the socket for power supply, and characterized in that a lever is connected to the outer surface of the plug socket, the lever makes a swinging motion relative to the plug socket, and the plugging of the plug body and the socket is achieved by the swinging of the lever.

[0005] According to the utility model, further, the power arm of the lever is longer than the resistance arm, and the plug body can be easily inserted into the socket of the socket by utilizing the lever principle, thus achieving a labor-saving effect.

[0006] According to the utility model, further, the lever comprises a swing arm arranged in parallel and a connecting rod integrally connected to the two swing arms, and the lever swings relative to the plug socket by pulling or pushing the connecting rod; the swing arm comprises a first surface, a second surface opposite to the first surface, a lower surface away from the connecting rod, and a side surface, and the lower half of the second surface is an arc-shaped profile, and the convex direction of the arc-shaped profile is away from the first surface. This avoids interference between the swing arm and the upper surface of the socket during the swinging process, and improves the smoothness of the movement.

[0007] According to the utility model, further, the side surface is provided with a cam groove for accommodating the tensioning column. When the lever is in the swinging state, the tensioning column and the cam groove slide relative to each other. When the tensioning column is stuck in the cam groove of the lever, the force cutting angle in the pulling-out direction is in a self-locking state, so that the plug and the socket are always in a tightly combined self-locking and anti-loosening state.

[0008] According to the utility model, further, the side surface of the plug socket is provided with a first limiting protrusion for limiting the starting position of the swing arm and a second limiting protrusion for limiting the ending position of the swing arm, which are distributed up and down and the line connecting the centers of the circles is an oblique line.

[0009] According to the utility model, further, the curved profile of the cam groove is parallel to the arc profile of the second surface.

[0010] The utility model also provides a socket for use with the above-mentioned electrical plug, having an upper surface, a jack for inserting the plug body, and two parallel arms extending upward, and opposite tensioning columns are formed on the opposite surfaces of the two arms, and the tensioning columns are slidably connected with the lever. The opposite surface of the lever and the tensioning column is provided with a cam groove for accommodating the tensioning column, and when the lever is in a swinging state, the tensioning column and the cam groove slide relative to each other.

[0011] Compared with the prior art, the beneficial effect of the utility model is that the lever drives the plug socket to move up and down while swinging relative to the plug socket, so that the plug body and the socket hole can be inserted or separated, achieving labor-saving and high-efficiency effects.

[0012] A cam groove is added to the side surface, and the tensioning column is in the cam groove when the lever is pulled. At this time, the force cutting angle in the withdrawal direction is in a self-locking state, which improves the locking performance of the plug and the socket and reduces the problem of poor contact.

[0013] The overall structure is simple, the operation is convenient, the manufacturing cost is simple, and it has broad application value and promotion prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of a first use state of a self-locking and anti-dropping electrical plug and socket of the utility model;

[0015] Figure 2 This is a schematic diagram of a second use state of a self-locking and anti-dropping electrical plug and socket of the utility model;

[0016] In the figure: 100-plug socket, 110-plug body, 200-socket, 210-jack, 220-support arm, 221-tension column, 300-shift rod, 310-swing arm, 311-first surface, 312-second surface, 313-lower surface, 314-side surface, 3141-cam groove, 320-connecting rod, 400-first limiting protrusion, 500-second limiting protrusion. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-2 The utility model provides a technical solution: a self-locking and anti-dropping electrical plug, comprising a plug socket 100, the bottom surface of the plug socket 100 has a plug body 110 extending downward, which is used for inserting and connecting with the socket 210 of the socket 200. In order to improve the tightness of the connection between the two, a lever 300 is rotatably connected to the side surface of the plug socket 100, and the lever 300 is pressed or loosened with the socket 200 during the swinging process; the power arm length of the lever 300 is greater than the resistance arm, and the plug body 110 can be easily inserted into the socket 200 by using the lever principle, thereby achieving a labor-saving effect; preferably, the lever 300 includes a parallel swing arm 310 and a connecting rod 320 integrally connected to the two swing arms 310, and the two swing arms 310 are respectively arranged on the two opposite side surfaces of the plug socket 100, and the connecting rod 320 is pulled or pushed by hand, and the lever 300 swings relative to the plug socket 100; the swing arm 310 has a first surface 311, a second surface 312 opposite to the first surface, a lower surface 313 away from the connecting rod 320, and a lower surface 314 for connecting the first surface 311 and the second surface 312. The first surface 311 is a plane, and the lower half of the second surface 312 is an arc-shaped profile, the convex direction of the arc-shaped profile is away from the first surface 311, so as to avoid the interference between the swing arm 310 and the upper surface of the socket 200 during the swinging process. The lower half mentioned here refers to the lower half of the length direction of the swing arm 310; a cam groove 3141 is provided on the side surface 314 of the swing arm 310 for cooperating with the tensioning column 221 to be described in detail below, so as to determine the swinging path of the swing arm 310, wherein one end of the cam groove 3141 passes through the lower surface 313, and when the lever 300 is in the vertical state, the tensioning column 221 cooperating with the cam groove 3141 can smoothly enter the cam groove 3141; preferably, the curved profile of the cam groove 3141 is parallel to the arc-shaped profile of the second surface 312.

[0019] Specifically, the upper surface of the socket 200 has symmetrically arranged arms 220 extending upward, and opposite tensioning columns 221 are formed on the opposite surfaces of the two arms 220. The length of the tensioning columns 221 corresponds to the depth of the cam groove 3141, so that the tensioning columns 221 and the cam groove 3141 can cooperate and will not be separated from each other.

[0020] In order to limit the swing amplitude of the swing arm 310 and prevent it from being separated from the tensioning column 221, a first limiting protrusion 400 and a second limiting protrusion 500 are provided on the side surface of the plug socket 100, which are distributed up and down and the line connecting the centers of the circles is an oblique line; the first limiting protrusion 400 located at the top is used to limit the starting position of the swing arm 310, and the second limiting protrusion 500 located at the bottom is used to limit the ending position of the swing arm 310.

[0021] Working principle: When inserted, Figure 1 As shown, first, the lever 300 is lifted to a vertical position, and then inserted into the socket 210 of the socket 200 together with the plug body 110. When the plug body 110 (i.e., the copper column) contacts the socket 210 (i.e., the copper sleeve) in the socket 200 and is inserted until the tensioning column 221 enters the opening of the cam groove 3141 that passes through one end of the lower surface 313, the lever 300 is pulled by hand, and the pulling direction is from the starting position of the lever 300 to the end position. During the pulling process, the lever 300 swings relative to the plug socket 100, and at the same time drives the plug socket 100 to rotate. When the plug lever 300 moves downward and reaches the end position, the tension column 221 is located at the other end of the cam groove 3141, so that the tension column 221 of the socket 200 follows the track of the cam groove 3141, and the plug body 110 is easily inserted into the socket 210 of the socket 200 by using the lever principle. When the tension column 221 is stuck in the cam groove 3141, the force cutting angle in the withdrawal direction is in a self-locking state, so that the plug body 110 and the socket 200 are in a tight combination, and the plug body 110 and the socket 210 are always in a tight combination and self-locking anti-loosening state. When pulling out, Figure 2 As shown, first push the lever 300 by hand, that is, push it from the end position to the starting position. During the pushing process, the lever 300 swings relative to the plug socket 100, and at the same time drives the plug socket 100 to move upward. When the lever 300 reaches the starting position, the tensioning column 221 is located at one end of the cam groove 3141 that passes through the lower surface 313. The plug body 110 can be easily disengaged from the socket 210 of the socket 200 and pulled out smoothly by utilizing the lever principle.

[0022] 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 self-locking and anti-dropping electrical plug, comprising a plug socket and a plug body integrally arranged at the bottom of the plug socket, the plug body being used to be plugged into a socket of a socket for power supply, characterized in that: The outer surface of the plug socket is connected with a lever, and the lever performs a swinging motion relative to the plug socket, and the plugging of the plug body and the socket is achieved through the swinging of the lever.

2. A self-locking anti-dropping electrical plug according to claim 1, characterized in that: The power arm of the shifting rod is longer than the resistance arm.

3. A self-locking anti-dropping electrical plug as claimed in claim 2, characterized in that: The lever includes parallel swing arms and a connecting rod integrally connected to the two swing arms. When the connecting rod is pulled or pushed, the lever swings relative to the plug socket. The swing arm has a first surface, a second surface opposite to the first surface, a lower surface away from the connecting rod, and a side surface. The lower half of the second surface is an arc-shaped contour, and the convex direction of the arc-shaped contour is away from the first surface.

4. A self-locking anti-dropping electrical plug as claimed in claim 3, characterized in that: The side surface is provided with a cam groove, in which a tensioning column connected with the socket is slidably arranged, and one end of the cam groove penetrates the lower surface of the swing arm.

5. A self-locking anti-dropping electrical plug as claimed in claim 1, characterized in that: The side surface of the plug socket is provided with a first limiting protrusion for limiting the starting position of the swing arm and a second limiting protrusion for limiting the ending position of the swing arm, which are distributed up and down and the line connecting the centers of the circles is an oblique line.

6. A self-locking anti-dropping electrical plug as claimed in claim 4, characterized in that: The curved profile of the cam groove is parallel to the arcuate profile of the second surface.

7. A socket, characterized in that: Used in conjunction with the electrical plug described in any one of claims 1-6, it has an upper surface, the upper surface is provided with a socket for inserting the plug body, and the upper surface is also provided with two parallel arms extending upward, and the opposite surfaces of the two arms are formed with relative tensioning columns, and the tensioning columns are slidably connected to the lever.

8. A socket as claimed in claim 7, characterized in that: The lever of the self-locking and anti-dropping electrical plug is provided with a cam groove on the surface opposite to the tensioning column for accommodating the tensioning column. When the lever is in a swinging state, the tensioning column and the cam groove slide relative to each other; when the tensioning column is stuck in the cut angle of the cam groove of the lever, the force cut angle in the removal direction is in a self-locking state, so that the plug and the socket are always in a tightly combined self-locking and anti-loosening state.

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