Plug structure

Abstract

The utility model relates to a plug structure which comprises a plug body, and the plug body is provided with a first pin and two second pins which are respectively arranged at two sides of the first pin. A driving gear is arranged on the first pin, a sliding seat is arranged on the plug body in a sliding manner, and a rack meshed with the driving gear is arranged on the sliding seat; the sliding seat is correspondingly connected with the two second plug pins through the two connecting rod assemblies, and the sliding seat drives the corresponding second plug pins to rotate through the connecting rod assemblies when sliding; during folding, the first pin is pushed to rotate and fold, the driving gear drives the rack to move, the sliding seat slides, the two connecting rod assemblies drive the two second pins to rotate and fold at the same time, the linkage folding action is completed, otherwise, the linkage folding mechanism can be unfolded, the linkage stability is good, the size is small, and the comprehensive performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of adapters, and more specifically to a plug structure. Background Art

[0002] The housing of the British standard adapter is provided with three pins. Due to the spatial position and length of the pins, the space required for the adapter to be stored is relatively large. In the existing design, two designs that can better solve this problem are adopted: 1. Chinese patent application number CN202023318208.8, a plug structure, which links the three pins by means of a connecting rod to achieve a synchronous folding and storage effect; 2. Chinese patent application number CN202120803158.8, a plug module and a power adapter, which link the three pins by means of a gear and a rack to achieve a synchronous folding and storage effect;

[0003] However, these two structures still have defects. In the first connecting rod structure, due to the instability of the connecting rod transmission (a movable gap must be left at the movable parts of the connecting rod at both ends, which will make the overall structure unstable and the accuracy relatively poor), the reliability of the entire structure during operation will become relatively poor. In the second gear structure, although the stability of the linkage can be guaranteed, the gear design needs to consider the direction conversion problem (the second document uses a double rack design facing up and down to solve this problem), the structure will become more complicated and the volume will be larger; a plug structure that can combine the advantages of both is needed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a plug structure in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A plug structure is constructed, which includes a plug body, on which a first pin and two second pins are respectively arranged on both sides of the first pin; the first pin is provided with a driving gear, and a sliding seat is slidably provided on the plug body, and the sliding seat is provided with a rack meshing with the driving gear; the sliding seat is respectively connected to two second pins through two connecting rod assemblies, and when the sliding seat slides, the corresponding second pins are driven to rotate by the connecting rod assembly.

[0007] The plug structure described in the utility model, wherein the plug body is provided with a first receiving groove for receiving the first plug pin and two second receiving grooves for receiving the second plug pins.

[0008] The plug structure described in the utility model, wherein a first convex bump corresponding to the first receiving groove is arranged inside the plug body, and a first slot for the first pin to move is opened on the first convex bump; the sliding seat is n-shaped, and the first convex bump is located in the n-shaped area of ​​the sliding seat and slides with the sliding seat.

[0009] In the plug structure of the utility model, the racks are arranged on both sides of the front end of the sliding seat, and the driving gears are arranged on both sides of the end of the first plug pin.

[0010] In the plug structure described in the utility model, the driving gear is connected to the side surface of the end of the first pin through a cylindrical connecting column; and the edge of the first slot is provided with a positioning groove that matches the connecting column.

[0011] The plug structure described in the utility model, wherein a cover body is arranged inside the plug body, and the cover body limits the position of the sliding seat; a screw column for screwing the cover body is arranged on the surface of the first convex bump, and a movable limiting groove cooperating with the screw column is arranged on the sliding seat.

[0012] The plug structure described in the utility model, wherein a second convex bump corresponding to the second receiving groove is arranged inside the plug body, and a second slot for the connecting rod assembly to move is opened on the second convex bump.

[0013] The plug structure described in the utility model, wherein the connecting rod assembly includes a rotating arm rotatably arranged in the plug body, and a driving column is eccentrically arranged on the rotating arm; and a driving hole matching with the driving column is arranged on the side surface of the sliding seat.

[0014] The plug structure described in the utility model, wherein one end of the rotating arm is provided with an inserting hole for inserting the second plug pin, the end of the second plug pin is provided with a positioning column, and the bottom surface of the inserting hole is provided with a through hole for the positioning column to pass through.

[0015] The plug structure described in the utility model, wherein the second convex bump is provided with an elastic positioning piece, the elastic positioning piece is provided with a bending portion that cooperates with the end movable trajectory of the rotating arm, and the bending portion is provided with two positioning grooves for positioning the positioning column at the front and rear positions of the rotation respectively.

[0016] The beneficial effects of the utility model are as follows: when folding, the first pin is pushed to rotate and fold, the rack is driven to move by the driving gear, and the sliding seat slides while relying on two connecting rod assemblies to drive the two second pins to rotate and fold, thereby completing the linkage folding action, and vice versa, the linkage can be unfolded, the linkage stability is good, the volume is small, and the comprehensive performance is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0018] Figure 1 This is a schematic diagram of the plug structure of a preferred embodiment of the utility model;

[0019] Figure 2 This is a partial structural diagram of a plug structure (with a cover) of a preferred embodiment of the utility model;

[0020] Figure 3 This is a partial structural diagram of the plug structure (without cover) of a preferred embodiment of the utility model;

[0021] Figure 4 It is a partial exploded view of the plug structure of a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be combined with the technical solution in the embodiments of the utility model for a clear and complete description. Obviously, the described embodiments are partial embodiments of the utility model, not all 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 utility model.

[0023] The plug structure of the preferred embodiment of the utility model is as follows Figure 1 See also Figure 2-Figure 4 , comprising a plug body 1, on which a first pin 2 and two second pins 3 are respectively arranged on both sides of the first pin 2; a driving gear 4 is arranged on the first pin 2, a sliding seat 5 is slidably arranged on the plug body 1, and a rack 6 meshing with the driving gear 4 is arranged on the sliding seat 5; the sliding seat 5 is respectively connected to the two second pins 3 through two connecting rod assemblies 7, and when the sliding seat 5 slides, the corresponding second pin 3 is driven to rotate by the connecting rod assembly 7;

[0024] When folding, the first pin 2 is pushed to rotate and fold, and the rack 6 is driven to move by the driving gear 4. The sliding seat 5 slides while relying on the two connecting rod assemblies 7 to drive the two second pins 3 to rotate and fold, completing the linkage folding action, and vice versa, it can be unfolded; the structure of the present application combines the characteristics of gear transmission and connecting rod transmission, has good linkage stability and small size, and the comprehensive performance is improved;

[0025] It should be noted that Figure 1 The drawings are only examples and are not intended to limit the shape of the plug. There may be other styles, and solutions obtained based on simple changes in shape also fall within the scope of protection of this application.

[0026] Preferably, the plug body 1 is provided with a first receiving groove 10 for receiving the first plug pin 2 and two second receiving grooves 11 for receiving the second plug pins 3. After receiving, the integrity will be better, and the groove shape can adopt the existing design.

[0027] Preferably, a first convex bump 12 corresponding to the first receiving groove is provided inside the plug body 1, and a first slot 120 for the first pin to move is provided on the first convex bump 12; the sliding seat 5 is n-shaped, and the first convex bump 12 is located in the n-shaped region of the sliding seat 5 and slides with the sliding seat 5; racks 6 are provided on both sides of the front end of the sliding seat 5, and driving gears 4 are provided on both sides of the end of the first pin 2; the structure is simple and the assembly is very convenient.

[0028] Preferably, the driving gear 4 is connected to the side surface of the end of the first pin 2 through a cylindrical connecting column 40; the edge of the first slot 120 is provided with a positioning groove 121 that cooperates with the connecting column 40; the reliability is good and it is not easy to get loose.

[0029] Preferably, a cover body 8 is provided inside the plug body 1, and the cover body 8 limits the position of the sliding seat 5; the surface of the first convex bump 12 is provided with a screw column 122 for screwing the cover body, and the sliding seat 5 is provided with a movable limiting groove 50 that cooperates with the screw column 122; with this structural design, there is no need to design a sliding connection structure, the cover body 8 limits the sliding seat 5 longitudinally, and combines the screw column 122 and the movable limiting groove 50 to limit it laterally, so as to realize the sliding cooperation between the sliding seat and the first convex bump 12, the structure is simple, and the assembly will be very convenient.

[0030] Preferably, a second convex bump 13 corresponding to the second receiving groove 11 is disposed inside the plug body 1 , and a second slot 130 for the connecting rod assembly to move is formed on the second convex bump 13 .

[0031] Preferably, the connecting rod assembly 7 includes a rotating arm 70 rotatably arranged in the plug body 1, and a driving column 71 is eccentrically arranged on the rotating arm; the side surface of the sliding seat 5 is provided with a driving hole 51 that cooperates with the driving column; when the sliding seat 5 moves, it will push the driving column 71 to move, thereby driving the rotating arm 70 to rotate, and then driving the second pin 3 to rotate and fold; the structure is simple, the driving reliability is good, and it is easy to assemble.

[0032] Preferably, one end of the rotating arm 70 is provided with a plug-in hole for plugging in the second pin 3, the end of the second pin 3 is provided with a positioning column 30, and the bottom surface of the plug-in hole is provided with a through hole 700 for the positioning column to pass through; it is convenient for assembly and at the same time it is easy to ensure the reliability of plug-in and is not easy to loosen; the second pin 3 can be fixed to the rotating arm 70 by gluing, interference fit, etc.

[0033] Preferably, an elastic positioning piece 9 is provided on the second convex bump 13, and a bending portion 90 is provided on the elastic positioning piece 9 for cooperating with the end movable trajectory of the rotating arm 70, and two positioning grooves 900 are provided on the bending portion 90 for respectively positioning the positioning column 30 at the front and rear positions before and after rotation; both the front and rear positions of rotation can be positioned by relying on the cooperation between the positioning column 30 and the positioning groove 900, and the positioning operation is very simple; fewer accessories are used, and it is easy to assemble.

[0034] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A plug structure, characterized in that: It comprises a plug body, on which a first pin and two second pins respectively located on both sides of the first pin are arranged; the first pin is provided with a driving gear, a sliding seat is slidably provided on the plug body, and the sliding seat is provided with a rack meshing with the driving gear; the sliding seat is respectively connected to two second pins through two connecting rod assemblies, and when the sliding seat slides, the corresponding second pins are driven to rotate by the connecting rod assembly.

2. The plug structure according to claim 1, characterized in that: The plug body is provided with a first receiving groove for receiving the first plug pin and two second receiving grooves for receiving the second plug pins.

3. The plug structure according to claim 2, characterized in that: A first convex bump corresponding to the first receiving groove is arranged inside the plug body, and a first slot for the first pin to move is opened on the first convex bump; the sliding seat is n-shaped, and the first convex bump is located in the n-shaped area of ​​the sliding seat and slidably cooperates with the sliding seat.

4. The plug structure according to claim 3, characterized in that: The racks are arranged on both sides of the front end of the sliding seat, and the driving gears are arranged on both sides of the end of the first pin.

5. The plug structure according to claim 4, characterized in that: The driving gear is connected to the side surface of the end of the first pin through a cylindrical connecting column; the edge of the first slot is provided with a positioning groove matched with the connecting column.

6. The plug structure according to claim 3, characterized in that: A cover body is arranged inside the plug body, and the cover body limits the position of the sliding seat; a screw column for screwing the cover body is arranged on the surface of the first convex bump, and a movable limiting groove cooperating with the screw column is arranged on the sliding seat.

7. The plug structure according to any one of claims 2 to 6, characterized in that: A second convex bump corresponding to the second receiving groove is arranged inside the plug body, and a second slot for the connecting rod assembly to move is formed on the second convex bump.

8. The plug structure according to claim 7, characterized in that: The connecting rod assembly comprises a rotating arm rotatably arranged in the plug body, and a driving column is eccentrically arranged on the rotating arm; and a driving hole matched with the driving column is arranged on the side surface of the sliding seat.

9. The plug structure according to claim 8, characterized in that: One end of the rotating arm is provided with an inserting hole for inserting the second plug pin, the end of the second plug pin is provided with a positioning column, and the bottom surface of the inserting hole is provided with a through hole for the positioning column to pass through.

10. The plug structure according to claim 9, characterized in that: The second convex bump is provided with an elastic positioning piece, the elastic positioning piece is provided with a bending portion that matches the end movable track of the rotating arm, and the bending portion is provided with two positioning grooves for positioning the positioning column at two positions before and after rotation respectively.

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