Power adapter with fixing structure

Abstract

The utility model discloses a power adapter with a fixing structure, which relates to the technical field of power adapters, and comprises a shell and a plug arranged at the bottom end of the shell, and the shell is provided with an auxiliary fixing unit used for fixing the power adapter on a power strip. The auxiliary fixing unit comprises a suction cup arranged at the bottom end of the shell, the suction cup is arranged on one side of the plug, the shell is adsorbed to a power strip through the suction cup, a jack is formed in the shell and communicated with the suction cup, a piston is slidably connected into the jack, and the piston is connected with the suction cup through a plug. And a driving unit for driving the piston to slide in the insertion hole is arranged in the shell. According to the utility model, through the arrangement of the sucker, when the power adapter is plugged and used, the sucker is adsorbed at a flat position of a power strip, fixed connection is realized, an existing clamping type fixing structure is replaced, and the power adapter is simple in structure, can be adapted to power strip structures of various different sizes, and is high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of power adapters, in particular to a power adapter with a fixed structure. Background Art

[0002] A power adapter is a power supply conversion device for small portable electronic devices and electronic appliances. During the process of connecting the existing power adapter to a desktop power strip, due to the lack of a fixed structure, the power adapter is easily loosened from the power strip under the influence of external forces during the process of connecting and using the power strip, thereby affecting the normal use of the power adapter. Therefore, most of the existing power adapters are provided with a fixed structure to improve the stability of use. However, the existing power adapters with a fixed structure still have some problems during use.

[0003] For example, the Chinese patent publication number CN219371575U discloses a power adapter with a fixed structure, including an adapter body, both sides of the front end of the lower surface of the adapter body are provided with fixed pins through hinges, both sides of the fixed pins are provided with expansion blades, the rear end of the adapter body is provided with a mounting shell, the middle of the inner surface of the mounting shell is provided with a bidirectional screw, both ends of the bidirectional screw penetrate the mounting shell and extend to the outside, both ends of the outer surface of the bidirectional screw are sleeved with movable paddles, the middle of the lower surface of the movable paddle is convex and penetrates the mounting shell and extends to the outside. This device is reasonably designed and can be stably connected to the power strip, which is conducive to avoiding the loosening of the power adapter due to external force during use. At the same time, when the power cord is pulled by external force, the external force can be intercepted and buffered, which is conducive to reducing the damage to the power cord.

[0004] The fixing structure of the above-mentioned power adapter is clamped and fixed by two fixing clips, and can only be adapted to some specific long strip socket structures. In addition, the structure is large in size, occupies a large area, and has low practicality. Therefore, the present application provides a power adapter with a fixed structure to meet the needs. Utility Model Content

[0005] The main purpose of the utility model is to provide a power adapter with a fixed structure, which can effectively solve the problem in the background technology that the existing power adapter with a fixed structure can only adapt to long strip-shaped socket structures, is not convenient to use, requires a rotating screw structure to achieve clamping, is cumbersome to use, and has low practicality. The purpose of simplifying the structure, improving adaptability to different types of socket strips and improving convenience of use is achieved.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a power adapter with a fixed structure, comprising a shell and a plug arranged at the bottom end of the shell, the shell is provided with an auxiliary fixing unit for fixing the power adapter on the socket strip, the auxiliary fixing unit comprises a suction cup arranged at the bottom end of the shell, and the suction cup is arranged on one side of the plug, and the shell is adsorbed on the socket strip through the suction cup.

[0007] Preferably, a socket is provided on the shell, the socket is communicated with the suction cup, a piston is slidably connected in the socket, and a driving unit for driving the piston to slide in the socket is provided in the shell.

[0008] Preferably, the driving unit comprises a rack slidably connected to the jack, one end of the rack is fixedly connected to a connecting shaft, and the end of the connecting shaft is fixedly connected to the piston. A sector gear is rotatably connected in the housing, the sector gear meshes with the rack, and a control unit for driving the sector gear to rotate is arranged in the housing.

[0009] Preferably, the control unit comprises a connecting rod fixedly connected to the sector gear, the housing is provided with a slot, a push block is slidably connected in the slot, and the push block is in conflict with the connecting rod.

[0010] Preferably, an arc-shaped portion is provided at one end of the connecting rod, and the arc-shaped portion abuts against the push block.

[0011] Preferably, a return spring is arranged in the housing, and one end of the return spring is fixedly connected to the push block.

[0012] Preferably, a torsion spring is provided at the rotational connection position between the sector gear and the housing.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. By setting a suction cup, when the power adapter is plugged in, the suction cup is adsorbed on the flat position of the socket strip to achieve a fixed connection, replacing the existing clamping fixing structure. The structure is simple, can be adapted to socket strips of various sizes, and is highly practical.

[0015] 2. By arranging a piston, a rack, a sector gear, a torsion spring, a push block, a reset spring and a connecting rod, when the power adapter is plugged in, the structure can generate a large negative pressure inside the suction cup, thereby improving the adsorption capacity of the suction cup, and thus improving the fixing effect of the power adapter. When the power adapter needs to be unplugged, the structure can increase the internal air pressure of the suction cup, making it easier to unplug the suction cup from the socket strip and remove the power adapter. The device is easy to use and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of a power adapter with a fixed structure;

[0017] Figure 2 It is a partially cutaway three-dimensional structural schematic diagram of a power adapter with a fixed structure;

[0018] Figure 3 It is a three-dimensional enlarged schematic diagram of the auxiliary fixing unit partial structure.

[0019] In the figure: 1. housing; 2. plug; 3. auxiliary fixing unit; 4. suction cup; 5. piston; 6. connecting shaft; 7. rack; 8. sector gear; 9. torsion spring; 10. push block; 11. return spring; 12. connecting rod. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example 1: Reference Figure 1-3A power adapter with a fixed structure shown in the figure includes a shell 1 and a plug 2 arranged at the bottom end of the shell 1. The shell 1 is provided with an auxiliary fixing unit 3 for fixing the power adapter on the socket strip. The auxiliary fixing unit 3 includes a suction cup 4 arranged at the bottom end of the shell 1, and the suction cup 4 is arranged on one side of the plug 2. The shell 1 is adsorbed on the socket strip through the suction cup 4. During the use of the power adapter, the suction cup 4 is adsorbed on the flat position of the socket strip, thereby achieving the purpose of fixing the power adapter on the socket strip, replacing the existing clamping and fixing method, with a simple structure and easy use.

[0024] The housing 1 is provided with a socket, which is connected to the suction cup 4, and a piston 5 is slidably connected in the socket. A driving unit for driving the piston 5 to slide in the socket is provided in the housing 1, and the driving unit includes a rack 7 slidably connected in the socket, one end of the rack 7 is fixedly connected to a connecting shaft 6, and the end of the connecting shaft 6 is fixedly connected to the piston 5. A sector gear 8 is rotatably connected in the housing 1, and the sector gear 8 is meshed with the rack 7. A torsion spring 9 is provided at the rotational connection position between the sector gear 8 and the housing 1, and a control unit for driving the sector gear 8 to rotate is provided in the housing 1.

[0025] When plugged in for use, the control unit is first used to control the rotation of the sector gear 8, which in turn drives the rack 7 to move, and then drives the piston 5 on the connecting shaft 6 to move, so as to push the piston 5 and the suction cup 4 closer together. Then, as the power adapter is plugged in, the suction cup 4 is pressed against the smooth position of the socket. Then, the control unit is released, and with the cooperation of the torsion spring 9, the sector gear 8 is driven to rotate in the opposite direction. Similarly, the piston 5 is driven away from the suction cup 4, so that a negative pressure is generated in the suction cup 4, thereby improving the adsorption capacity of the suction cup 4 and thereby improving the fixing effect of the power adapter. It is highly practical, and the drive unit can be replaced by other structures as long as it can drive the piston 5 to slide in the socket, such as the electric push rod structure in the prior art.

[0026] The control unit includes a connecting rod 12 fixedly connected to the sector gear 8, a slot is opened on the shell 1, a push block 10 is slidably connected in the slot, the push block 10 is in conflict with the connecting rod 12, one end of the connecting rod 12 is provided with an arc portion, the arc portion is in conflict with the push block 10, a return spring 11 is provided in the shell 1, and one end of the return spring 11 is fixedly connected to the push block 10.

[0027] When plugging in and using, first push the two push blocks 10 to compress the return spring 11, and at the same time push the connecting rod 12 to move, thereby rotating the sector gear 8, and then driving the rack 7 to move. Similarly, drive the piston 5 to move, so that the piston 5 is close to the suction cup 4, and then with the plugging in, the suction cup 4 is used to adsorb and fix the flat part of the socket strip. When the power adapter needs to be removed, the push block 10 can be continued to be pushed to drive the piston 5 to continue to approach the suction cup 4, thereby increasing the pressure in the suction cup 4, thereby facilitating the separation of the suction cup 4 from the socket strip, and improving the efficiency of removing the power adapter, which is highly practical.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A power adapter with a fixed structure, comprising a housing (1) and a plug (2) arranged at the bottom end of the housing (1), characterized in that: The housing (1) is provided with an auxiliary fixing unit (3) for fixing the power adapter on the socket strip, the auxiliary fixing unit (3) comprising a suction cup (4) arranged at the bottom end of the housing (1), and the suction cup (4) is arranged on one side of the plug (2), and the housing (1) is adsorbed on the socket strip through the suction cup (4).

2. A power adapter with a fixed structure according to claim 1, characterized in that: The housing (1) is provided with a socket, the socket is connected to the suction cup (4), a piston (5) is slidably connected in the socket, and a driving unit for driving the piston (5) to slide in the socket is provided in the housing (1).

3. The power adapter with a fixed structure according to claim 2, characterized in that: The driving unit comprises a rack (7) slidably connected to the jack, one end of the rack (7) is fixedly connected to a connecting shaft (6), and the end of the connecting shaft (6) is fixedly connected to the piston (5), a sector gear (8) is rotatably connected in the housing (1), the sector gear (8) is meshed with the rack (7), and a control unit for driving the sector gear (8) to rotate is arranged in the housing (1).

4. The power adapter with a fixed structure according to claim 3, characterized in that: The control unit comprises a connecting rod (12) fixedly connected to the sector gear (8); a slot is provided on the housing (1), a push block (10) is slidably connected in the slot, and the push block (10) is in contact with the connecting rod (12).

5. The power adapter with a fixed structure according to claim 4, characterized in that: One end of the connecting rod (12) is provided with an arc-shaped portion, and the arc-shaped portion abuts against the push block (10).

6. The power adapter with a fixed structure according to claim 4, characterized in that: A return spring (11) is arranged in the housing (1), and one end of the return spring (11) is fixedly connected to the push block (10).

7. The power adapter with a fixed structure according to claim 3, characterized in that: A torsion spring (9) is provided at the rotational connection position between the sector gear (8) and the housing (1).

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