Protective device for power line plug

Abstract

The utility model discloses a protection device for a power line plug, which comprises a plug, two insertion sheets arranged on the side surface of the plug, a through cavity arranged in the plug, a buckling mechanism arranged in the through cavity, the buckling mechanism comprising a pressing rod, an inverted buckling boss arranged at one end of the pressing rod, and a rotating column connected with the bottom surface of the middle part of the pressing rod, rotating shafts are fixedly arranged on the two side faces of the rotating column and rotationally installed in the through cavity, a spring is connected and installed in the through cavity on one side of the rotating column, and the other end of the spring is connected with the pressing rod; the outer wall of the plug is slidably connected with a protective shell. According to the utility model, the inverted buckle boss is matched with the buckle hole in the socket, so that the plug is prevented from falling off accidentally in the use process, and the stability and the safety of connection are improved; and the protective shell can be pulled forwards to protect the insertion piece so as to prevent the insertion piece from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of power equipment, and particularly relates to a protection device for a power cord plug. Background Art

[0002] A plug is a removable connector that is connected to an electric device and usually has protruding pins that match the openings and female contacts in a socket fixed to a device or building structure. The design of the plug includes not only the two current-carrying connections of a single-phase socket but may also include a third pin for a safe connection to the ground.

[0003] In modern life, we need electricity in many places. When using electricity, we cannot do without sockets and plugs. However, after the plug is inserted into the socket, relying solely on the clamping force of the socket, the plug is likely to fall off under the action of external forces. Moreover, after the plug is unplugged, the plug blades are exposed, making it easy to come into contact with water or adhere to impurities, and may be damaged by extrusion accidentally. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problems that after the plug is inserted into the socket, relying solely on the clamping force of the socket, the plug is likely to fall off under the action of external forces, and after the plug is unplugged, the plug blades are exposed, making it easy to come into contact with water or adhere to impurities, and may be damaged by extrusion accidentally.

[0005] The utility model realizes the above purpose through the following technical solutions: A protection device for a power cord plug is provided, including a plug. Two plug blades are arranged on the side surface of the plug. A through cavity is opened in the plug. A locking mechanism is arranged in the through cavity. The locking mechanism includes a pressure rod. An inverted buckle boss is arranged at one end of the pressure rod. A rotating column is connected to the bottom surface of the middle part of the pressure rod. Rotating shafts are fixedly arranged on both side surfaces of the rotating column. The rotating shafts are rotatably installed in the through cavity. A spring is connected and installed in the through cavity on one side of the rotating column. The other end of the spring is connected to the pressure rod. A protective shell is slidably connected to the outer wall of the plug.

[0006] Further, it further includes a socket. Two jacks are arranged on the socket. A buckle hole matched with the inverted buckle boss is opened between the two jacks.

[0007] Further, a contact piece is fixedly connected in the jack.

[0008] Further, trapezoidal card slots are opened on both side walls of the plug.

[0009] Further, trapezoidal sliding pieces matched with the card slots are connected to both inner side walls of the protective shell.

[0010] Further, a power cord is connected to the tail of the plug, and the power cord is electrically connected to the insertion piece.

[0011] Further, the contact piece and the insertion piece are made of copper material.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The buckle mechanism inside the plug includes components such as a pressure rod, an inverted buckle boss, and a rotating column, which can ensure that the plug is firmly fixed in the socket when the plug is inserted into the socket. The inverted buckle boss cooperates with the buckle hole in the socket to prevent the plug from accidentally falling off during use, improving the stability and safety of the connection.

[0014] 2. The protective shell slidably connected to the outer wall of the plug can effectively cover the contact part of the plug, prevent the metal part from being exposed when the plug is not inserted into the socket, reduce the risk of electric shock. In addition, when the plug is not in use, the protective shell can be pulled forward to protect the insertion piece to prevent the insertion piece from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 3 is an exploded view of the plug and the buckle mechanism in the present utility model;

[0018] Figure 4 is a schematic diagram of the protective shell in the present utility model;

[0019] Figure 5 is a top view of the plug and the protective shell in the present utility model;

[0020] Figure 6 is Figure 5 a cross-sectional view taken along A-A in

[0021] Figure 7 is a schematic diagram of the socket in the present utility model.

[0022] In the figure: 1 - plug, 2 - insertion piece, 3 - through cavity, 4 - pressure rod, 5 - spring, 6 - protective shell, 7 - socket, 8 - card slot, 9 - trapezoidal sliding piece, 10 - power cord; 41 - inverted buckle boss, 42 - rotating column, 43 - rotating shaft, 71 - jack, 72 - buckle hole, 73 - contact piece. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0025] Combined with Figures 1 to 7 A protection device for a power cord plug shown in the figure includes a plug 1. Two insertion pieces 2 are arranged on the side surface of the plug 1. A through cavity 3 is opened in the plug 1. A locking mechanism is arranged in the through cavity 3. The locking mechanism includes a pressing rod 4. An inverted buckle boss 41 is arranged at one end of the pressing rod 4. A rotating column 42 is connected to the bottom surface in the middle of the pressing rod 4. Rotating shafts 43 are fixedly arranged on both side surfaces of the rotating column 42. The rotating shafts 43 are rotatably installed in the through cavity 3. A spring 5 is connected and installed in the through cavity 3 on one side of the rotating column 42. The other end of the spring 5 is connected to the pressing rod 4; A protective shell 6 is slidably connected to the outer wall of the plug 1;

[0026] Among them, it further includes a socket 7. Two jacks 71 are arranged on the socket 7. A buckle hole 72 matching with the inverted buckle boss 41 is opened between the two jacks 71. A contact piece 73 is fixedly connected in the jack 71;

[0027] Trapezoidal card slots 8 are opened on both side walls of the plug 1; Trapezoidal sliding pieces 9 matching with the card slots 8 are connected to both inner side walls of the protective shell 6; As Figure 6 shown, at the position closer to the head of the plug 1, the width of the trapezoidal card slot 8 is smaller, while at the position closer to the tail of the plug 1, its width is larger. Therefore, as the protective shell 6 slides towards the head of the plug 1, the trapezoidal sliding piece 9 becomes tighter, and when sliding backwards, it becomes looser. In this way, the friction force between the trapezoidal sliding piece 9 and the card slot 8 is used to prevent the random sliding of the protective shell 6, so as to protect the insertion pieces 2 at the front end;

[0028] A power cord 10 is connected to the tail of the plug 1. The power cord 10 is electrically connected to the insertion piece 2; The contact piece 73 and the insertion piece 2 are made of copper material.

[0029] Working principle: When in use, the user slides the protective shell 6 toward the rear of the plug 1, thereby exposing the front section and the plug 2 of the plug 1, and then pinches the front section of the plug 1 with the hand to insert the plug 2 into the socket 71 of the socket 7, and at this time, the pressure rod 4 is also inserted into the buckle hole 72, and with the rebound of the spring 5, the inverted boss 41 at the end of the pressure rod 4 buckles the socket 71, thereby preventing the plug from accidentally falling off during use, and improving the stability and safety of the connection; when the plug 1 needs to be pulled out, the user uses a finger to pull the pressure rod 4 The tail end is pushed up, and during the pushing-up process, the pressure rod 4 drives the rotating column 42 and the rotating shaft 43 to rotate, and then the pressure rod 4 presses the spring 5 downward and drives the inverted boss 41 at the end downward, so as to release the lock of the socket 7 on the plug 1, and then the plug 1 is pulled out; then, when the plug 1 is not in use, the protective shell 6 can be slid toward the front end of the plug 1, so as to utilize the friction between the trapezoidal slide 9 and the card slot 8 to prevent the protective shell 6 from sliding randomly, so that it can protect the front end plug 2 and prevent the plug 2 from being damaged.

[0030] 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.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A protective device for a power cord plug, comprising a plug (1), and two insertion pieces (2) are arranged on the side surface of the plug (1), characterized in that: A through cavity (3) is formed in the plug (1). A latching mechanism is provided in the through cavity (3). The latching mechanism includes a pressure rod (4). An inverted buckle boss (41) is provided at one end of the pressure rod (4). A rotating column (42) is connected to the bottom surface of the middle part of the pressure rod (4). Rotating shafts (43) are fixedly provided on both side surfaces of the rotating column (42). The rotating shafts (43) are rotatably installed in the through cavity (3). A spring (5) is connected and installed in the through cavity (3) on one side of the rotating column (42). The other end of the spring (5) is connected to the pressure rod (4). A protective shell (6) is slidably connected to the outer wall of the plug (1).

2. The protective device for a power cord plug according to claim 1, characterized in that: It further includes a socket (7). Two jacks (71) are provided on the socket (7). A buckle hole (72) that cooperates with the inverted buckle boss (41) is formed between the two jacks (71).

3. The protective device for the power cord plug according to claim 2, wherein: A contact piece (73) is fixedly connected in the jack (71).

4. The protective device for a power cord plug according to claim 3, wherein: Trapezoidal card slots (8) are formed on both side walls of the plug (1).

5. The protective device for a power cord plug according to claim 4, characterized in that: Trapezoidal sliding pieces (9) that cooperate with the card slots (8) are connected to both inner side walls of the protective shell (6).

6. The protective device for the power cord plug according to claim 5, wherein: A power cord (10) is connected to the tail of the plug (1). The power cord (10) is electrically connected to the plug blade (2).

7. The protective device for a power cord plug according to claim 6, characterized in that: The contact piece (73) and the plug blade (2) are made of copper material.

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