Power adapter convenient to fix

Abstract

The invention relates to the technical field of power adapters, in particular to a convenient-to-fix power adapter which comprises a supporting mechanism, a wire plug is slidably inserted into the rear end of the supporting mechanism, a wire is fixedly mounted at one end, away from the supporting mechanism, of the wire plug, and the supporting mechanism comprises a synchronizing device and a positioning component. The synchronizing device is fixedly installed at the rear end of the positioning part and comprises a connector, supporting side plates, a cross rod and special-shaped air cylinders, the special-shaped air cylinders are fixedly installed at the two ends of the connector, the supporting side plates are symmetrically and fixedly installed at the two ends of the rear side of the connector, and the cross rod is fixedly installed between the two supporting side plates; a first piston rod is slidably inserted into the front end of the special-shaped inflator, a second piston rod is slidably inserted into the rear end of the special-shaped inflator, and a limiting clamping frame is fixedly mounted at the end, away from the special-shaped inflator, of the second piston rod. And through the arrangement of the supporting mechanism, the purposes of fixed-point limiting and synchronous anti-falling are achieved when the power adapter is used.

Description

Technical Field

[0001] The invention relates to the technical field of power adapters, in particular to a power adapter which is easy to fix. Background Art

[0002] A power adapter, also called an external power supply, is a power supply voltage conversion device for small portable electronic devices and electronic appliances. It is commonly found in small electronic products such as mobile phones, LCD monitors, and laptops.

[0003] The power adapter is a power supply conversion device for small portable electronic devices and electronic appliances. It is generally composed of components such as housing, transformer, inductor, capacitor, control IC, PCB board, etc. Its working principle is to convert AC input into DC output; according to the connection method, it can be divided into wall-mounted and desktop types. It is widely used in security cameras, set-top boxes, routers, light strips, massagers and other equipment.

[0004] At present, when the power adapters on the market are used, they are installed or removed by plugging and unplugging, and there is a lack of limiting components on the power adapter. When the power adapter is pulled by external force, the plug of the power adapter will be removed from the socket. At the same time, the wires of the power adapter and the power adapter will also encounter the above problems when they are connected because of the plugging and unplugging method. Therefore, the existing power adapters cannot perform the fixed-point limiting and synchronous anti-dropping functions when in use. Therefore, a device is needed to improve the above problems. Summary of the invention

[0005] In view of the problems in the prior art, the present invention provides a power adapter that is easy to fix.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a power adapter that is easy to fix, including a supporting mechanism, a wire plug is slidably inserted in the rear end of the supporting mechanism, and a wire is fixedly installed on the end of the wire plug away from the supporting mechanism, the supporting mechanism includes a synchronizing device and a positioning component, the synchronizing device is fixedly installed on the rear end of the positioning component, the synchronizing device includes a connecting head, a supporting side plate, a cross bar and a special-shaped gas cylinder, the special-shaped gas cylinder is fixedly installed at both ends of the connecting head, the supporting side plates are symmetrically fixedly installed at the two ends of the rear side of the connecting head, the cross bar is fixedly installed between the two supporting side plates, a first piston rod is slidably inserted in the front end of the special-shaped gas cylinder, a second piston rod is slidably inserted in the rear end of the special-shaped gas cylinder, a limiting bracket is fixedly installed on the end of the second piston rod away from the special-shaped gas cylinder, and a first spring is fixedly installed between the limiting bracket and the supporting side plate.

[0007] Specifically, the positioning component includes a limiting device, a connecting device, a guiding device and a special-shaped bracket. The limiting device is symmetrically slidably inserted into the bottom ends of both sides of the connecting device, the special-shaped bracket is fixedly installed on the limiting device, and the guiding device is threadedly sleeved on the top of the connecting device.

[0008] Specifically, the limiting device includes a first rack and a U-shaped bracket, and the first rack is fixedly mounted on the top of the U-shaped bracket;

[0009] When the first rack is displaced, it can drive the U-shaped card frame to contact with the external socket.

[0010] Specifically, the connecting device includes a power adapter, a gear, a guide bracket and a screw rod, the screw rod is rotatably mounted on the top of the power adapter, the gear is symmetrically rotatably mounted on both sides of the power adapter, the guide brackets are symmetrically fixedly mounted on both sides of the power adapter, and the guide brackets are located below the gear, heat dissipation holes are opened inside the two sides of the power adapter, and the heat dissipation holes are located above the gear, the top of the power adapter is symmetrically fixedly mounted with guide top rods, the top of the inner top of the power adapter is symmetrically fixedly mounted with vertical plates, the top of the side ends of the vertical plates close to the heat dissipation holes are fixedly mounted with positioning base rods, a sealing plug is slidably sleeved on the positioning base rod, the side ends of the sealing plug close to the vertical plates are fixedly mounted with a first alignment key, and the first alignment key is located below the positioning base rod, a second spring is fixedly mounted between the sealing plug and the vertical plate, and the second spring is located between the positioning base rod and the first alignment key;

[0011] When the gear rotates, it can drive the first rack and the U-shaped bracket to move.

[0012] Specifically, the guide device includes a connecting cross frame and a synchronous cross bar, the synchronous cross bar is fixedly installed at both ends of the bottom of the connecting cross frame, the two ends of the synchronous cross bar are fixedly installed with a second rack, the bottom end of the connecting cross frame is fixedly installed with two connecting round rods, and the connecting round rods are located on the inner side of the synchronous cross bar, and the bottom end of the connecting round rod is fixedly installed with a second alignment key;

[0013] When the second rack moves downward, it can drive the gear to rotate, so that the first rack can drive the special-shaped bracket to move.

[0014] Specifically, the connecting head is fixedly installed on the rear end of the power adapter, the first piston rod is connected to the rear end of the special-shaped bracket, the first rack is meshed with the bottom end of the gear, the second rack is meshed with the gear, the top center thread of the connecting cross frame is sleeved on the outer ring of the screw rod, and the connecting round rod is slidably inserted into the top end of the power adapter.

[0015] Specifically, the interior of the special-shaped air cylinder is set in a hollow state, and a closed cavity is formed between the first piston rod, the special-shaped air cylinder and the second piston rod. The limiting bracket is slidably sleeved between the two cross bars, and a groove is opened in the front center of the limiting bracket. The top end of the U-shaped bracket is slidably inserted into the interior of the guide bracket, and the heat dissipation hole is horizontally aligned with the sealing plug.

[0016] Specifically, the bottom of the side end of the first alignment key close to the vertical plate and the top of the side end of the second alignment key away from the second rack are both inclined at 45°, the top of the connecting cross frame is symmetrically provided with circular holes, and the top of the power adapter close to the screw rod is symmetrically provided with sockets.

[0017] Specifically, a movable hole is opened inside the guide bracket, the thickness of the gear is 1 cm, the rear ends of the first rack and the second rack are 0.5 cm, and the first rack and the second rack are staggered with each other, and a threaded hole is opened at the top center of the connecting cross frame.

[0018] Specifically, the U-shaped bracket further includes a bolt and a movable positioning bracket, the movable positioning bracket is slidably inserted into the bottom end of the U-shaped bracket, and the bolt is threadedly inserted into the side end of the U-shaped bracket.

[0019] Beneficial effects of the present invention:

[0020] First, when the screw rod is screwed and rotated, the present invention can drive the connecting cross frame to move downward, so that the second rack can drive the gear to rotate, and the first rack can drive the U-shaped bracket to buckle on the external socket strip. At the same time, when the connecting cross frame moves downward, it can also drive the second alignment key to disengage from the first alignment key, so that the second spring can pull the sealing plug out of the inside of the heat dissipation hole, which is convenient for the power adapter to dissipate heat during operation and complete the work of fixed-point restriction of the power adapter.

[0021] Secondly, the present invention can drive the first piston rod to enter the interior of the special-shaped gas cylinder when the first rack is displaced, so that the second piston rod can drive the cross bar to displace, so that the limiting bracket can be slidably sleeved on the outer ring of the wire plug when it is displaced, thereby preventing the wire plug from falling off during use, and when the first piston rod loses its restriction, the elasticity of the first spring can drive the limiting bracket to quickly reset, so that the limiting bracket can be out of contact with the wire plug, thereby completing the work of synchronously preventing the wire plug from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from the front perspective;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the support mechanism of the present invention from a front perspective;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the synchronization device in the present invention from the front perspective;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the positioning component in the present invention from a front perspective;

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the positioning component in the present invention from the bottom perspective;

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the limiting device in the present invention from a front viewing angle;

[0029] Figure 7 It is a partial cutaway schematic diagram of the connecting device in the present invention;

[0030] Figure 8 This is a schematic diagram of the three-dimensional structure of the connecting device of the present invention from the bottom perspective;

[0031] Fig. 9 It is a schematic diagram of the three-dimensional structure of the guide device of the present invention from a front perspective;

[0032] Fig.10 It is a schematic diagram of the three-dimensional structure from the front perspective of the second embodiment of the U-shaped bracket of the present invention.

[0033] In the figure: 1-support mechanism, 2-wire plug, 3-wire, 4-synchronizing device, 5-positioning component, 6-first spring, 7-cross bar, 8-limiting bracket, 9-connecting head, 10-first piston rod, 11-special-shaped air cylinder, 12-second piston rod, 13-limiting device, 14-connecting device, 15-guiding device, 16-special-shaped bracket, 17-first rack, 18-U-shaped bracket, 19-vertical plate, 20-sealing rubber plug, 21-heat dissipation hole, 22-guide bracket, 23-gear, 24-power adapter, 25-guide push rod, 26-screw rod, 27-positioning base rod, 28-second spring, 29-first alignment key, 30-connecting round rod, 31-second alignment key, 32-second rack, 33-synchronizing cross bar, 34-connecting cross frame, 35-support side plate, 36-bolt, 37-movable positioning frame. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0035] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0036] The present invention is further described below in conjunction with the accompanying drawings.

[0037] Example 1

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, a power adapter that is easy to fix of the present invention includes a supporting mechanism 1, a wire plug 2 is slidably inserted in the rear end of the supporting mechanism 1, a wire 3 is fixedly installed on the end of the wire plug 2 away from the supporting mechanism 1, the supporting mechanism 1 includes a synchronizing device 4 and a positioning component 5, the synchronizing device 4 is fixedly installed at the rear end of the positioning component 5, the synchronizing device 4 includes a connector 9, a supporting side plate 35, a cross bar 7 and a special-shaped gas cylinder 11, the special-shaped gas cylinder 11 is fixedly installed at both ends of the connecting head 9, the supporting side plates 35 are symmetrically fixedly installed at both ends of the rear side of the connecting head 9, the cross bar 7 is fixedly installed between the two supporting side plates 35, a first piston rod 10 is slidably inserted in the front end of the special-shaped gas cylinder 11, a second piston rod 12 is slidably inserted in the rear end of the special-shaped gas cylinder 11, a limiting bracket 8 is fixedly installed on the end of the second piston rod 12 away from the special-shaped gas cylinder 11, and a first spring 6 is fixedly installed between the limiting bracket 8 and the supporting side plate 35.

[0039] like Figure 4 and Figure 5The positioning component 5 includes a limiting device 13, a connecting device 14, a guiding device 15 and a special-shaped bracket 16. The limiting device 13 is symmetrically slidably inserted into the bottom ends of both sides of the connecting device 14, the special-shaped bracket 16 is fixedly installed on the limiting device 13, and the guiding device 15 is threadedly sleeved on the top of the connecting device 14 to support the guiding device 15 to work.

[0040] like Figure 6 The limiting device 13 includes a first rack 17 and a U-shaped bracket 18. The first rack 17 is fixedly mounted on the top of the U-shaped bracket 18. The U-shaped bracket 18 slides inside the synchronous cross bar 33, so that the U-shaped bracket 18 can be ensured to move in a straight line.

[0041] When the first rack 17 is displaced, it can drive the U-shaped bracket 18 to contact with the external socket.

[0042] like Figure 7 and Figure 8 The connecting device 14 includes a power adapter 24, a gear 23, a guide bracket 22 and a screw 26. The screw 26 is rotatably mounted on the top of the power adapter 24. The gear 23 is symmetrically rotatably mounted on both sides of the power adapter 24. The guide bracket 22 is symmetrically fixedly mounted on both sides of the power adapter 24, and the guide bracket 22 is located below the gear 23. Heat dissipation holes 21 are opened inside the two sides of the power adapter 24, and the heat dissipation holes 21 are located above the gear 23. The top of the power adapter 24 is symmetrically fixedly mounted with a guide top rod 25, and the top of the power adapter 24 is symmetrically fixedly mounted with a vertical Plate 19, a positioning base rod 27 is fixedly installed on the top of the side end of the vertical plate 19 near the heat dissipation hole 21, and a sealing plug 20 is slidably sleeved on the positioning base rod 27. A first alignment key 29 is fixedly installed on the side end of the sealing plug 20 near the vertical plate 19, and the first alignment key 29 is located below the positioning base rod 27. A second spring 28 is fixedly installed between the sealing plug 20 and the vertical plate 19, and the second spring 28 is located between the positioning base rod 27 and the first alignment key 29. The first alignment key 29 is vertically aligned with the second alignment key 31, so that the docking accuracy of the first alignment key 29 and the second alignment key 31 can be improved;

[0043] When the gear 23 rotates, it can drive the first rack 17 and the U-shaped bracket 18 to move.

[0044] like Fig. 9The guide device 15 includes a connecting cross frame 34 and a synchronous cross bar 33. The synchronous cross bar 33 is fixedly installed at both ends of the bottom of the connecting cross frame 34. The two ends of the synchronous cross bar 33 are fixedly installed with a second rack 32. The bottom end of the connecting cross frame 34 is fixedly installed with two connecting round rods 30, and the connecting round rods 30 are located on the inner side of the synchronous cross bar 33. The bottom end of the connecting round rod 30 is fixedly installed with a second alignment key 31. The two connecting round rods 30 slide inside the top of the power adapter 24, so that the second alignment key 31 can be ensured to move in a straight line.

[0045] When the second rack 32 moves downward, it can drive the gear 23 to rotate, so that the first rack 17 can drive the special-shaped bracket 16 to move.

[0046] The connector 9 is fixedly mounted on the rear end of the power adapter 24, the first piston rod 10 is connected to the rear end of the special-shaped bracket 16, the first rack 17 is meshed with the bottom end of the gear 23, the second rack 32 is meshed with the gear 23, the top center of the connecting cross frame 34 is threadedly sleeved on the outer ring of the screw rod 26, the connecting round rod 30 is slidably inserted into the top of the power adapter 24, the interior of the special-shaped gas cylinder 11 is set in a hollow state, and a closed cavity is formed between the first piston rod 10, the special-shaped gas cylinder 11 and the second piston rod 12, the limiting bracket 8 is slidably sleeved between the two cross bars 7, the front end center of the limiting bracket 8 is provided with a groove, and the top of the U-shaped bracket 18 slides Inserted in the inside of the guide bracket 22, the heat dissipation hole 21 is horizontally aligned with the sealing plug 20, the first alignment key 29 is close to the bottom of the side end of the vertical plate 19 and the second alignment key 31 is away from the top of the side end of the second rack 32. Both are inclined at 45°, and circular holes are symmetrically provided at the top of the connecting cross frame 34. The power adapter 24 is symmetrically provided with jacks inside the top near the screw rod 26. A movable hole is provided inside the guide bracket 22. The thickness of the gear 23 is 1 cm, the rear ends of the first rack 17 and the second rack 32 are both 0.5 cm, and the first rack 17 and the second rack 32 are staggered with each other, and a threaded hole is provided at the center of the top of the connecting cross frame 34.

[0047] The working principle of embodiment 1 is as follows: when in use, first insert the conductive sheet at the bottom end of the power adapter 24 into the external socket, and then insert the wire plug 2 into the rear end of the connector 9 so that the external device can be powered on. Subsequently, the screw rod 26 can be screwed and rotated, and the connecting cross frame 34 is threadedly sleeved on the outer ring of the screw rod 26, so that when the screw rod 26 is screwed and rotated clockwise, the connecting cross frame 34 can be driven to move downward, and the connecting cross frame 34 is slidably sleeved on the guide top rod 25, so that the connecting cross frame 34 can be ensured to move up and down along a straight line. When the connecting cross frame 34 moves downward, it can drive the second rack 32 to move downward.

[0048] The second rack 32 is meshed with the gear 23, so that the gear 23 can be driven to rotate. When the gear 23 rotates, the first rack 17 can be driven to move toward one end close to the gear 23, so that the U-shaped bracket 18 can be buckled on the socket strip, thereby restricting the power adapter 24 on the socket strip to prevent the power adapter 24 from being driven off the socket strip by external force. At the same time, when the first rack 17 is displaced toward one end close to the gear 23, a special-shaped bracket 16 is installed on the first rack 17 at the front end of the power adapter 24, so that when the first rack 17 at the front end of the power adapter 24 is displaced in the direction close to the gear 23, the first piston rod 10 can be driven by the special-shaped bracket 16 to enter the interior of the special-shaped gas cylinder 11, so that the second piston rod 12 can drive the limiting bracket 8 to move toward the center direction of the connector 9 until the limiting bracket 8 can be slidably sleeved on the outer ring of the wire plug 2, so that the wire plug 2 can be prevented from moving out of the interior of the connector 9.

[0049] By limiting the card frame 8 to be slidably sleeved on the cross bar 7, it is ensured that the card frame 8 moves in a straight line, the docking accuracy of the card frame 8 and the wire plug 2 is improved, and the work of synchronous limiting positioning of the power adapter 24 and the wire plug 2 is completed. At the same time, when the connecting cross frame 34 moves downward, it can also drive the second alignment key 31 to disengage from the first alignment key 29, and the elasticity of the second spring 28 will drive the sealing plug 20 to move toward the inside of the power adapter 24, so that the sealing plug 20 can be moved out from the inside of the heat dissipation hole 21, so that When the power adapter 24 is in use, heat flows outward through the heat dissipation holes 21 to prevent the power adapter 24 from generating too much heat during operation. When the power adapter 24 needs to be removed from the socket strip, the screw rod 26 can be rotated counterclockwise so that the connecting cross frame 34 can be moved upward, so that the second rack 32 can drive the gear 23 to rotate in the opposite direction, so that the first rack 17 can drive the U-shaped bracket 18 to move away from the gear 23, so that the U-shaped bracket 18 can be disengaged from the socket strip, making it easier for the power adapter 24 to be removed from the socket strip.

[0050] At the same time, when the first rack 17 is displaced to the end away from the gear 23, the first piston rod 10 can also be driven to move forward through the special-shaped bracket 16, so that the second piston rod 12 can enter the interior of the special-shaped gas cylinder 11, so that the second piston rod 12 can drive the limiting bracket 8 to disengage from the wire plug 2, so that the wire plug 2 can be released, and the elasticity of the first spring 6 can drive the limiting bracket 8 to quickly reset, completing the unlocking and releasing of the power adapter 24 and the wire plug 2. At the same time, when the connecting cross frame 34 is displaced upward, it can drive The second alignment key 31 is simultaneously displaced upward, so that when the second alignment key 31 contacts the first alignment key 29, the sealing plug 20 can be slowly squeezed to move outward until the connecting cross frame 34 is completely reset upward, and the second alignment key 31 can be driven to squeeze the first alignment key 29 to drive the sealing plug 20 into the heat dissipation hole 21, so that the heat dissipation hole 21 can be closed to prevent external dust from entering the interior of the power adapter 24 through the heat dissipation hole 21 when the power adapter 24 is not in use, thereby avoiding problems with the power adapter 24 during later use and completing the work.

[0051] Example 2

[0052] On the basis of Example 1, Fig.10 As shown, the U-shaped bracket 18 further includes a bolt 36 and a movable positioning bracket 37 . The movable positioning bracket 37 is slidably inserted into the bottom end of the U-shaped bracket 18 , and the bolt 36 is threadedly inserted into the side end of the U-shaped bracket 18 .

[0053] When implementing this embodiment, a displacement hole is opened at the bottom end of the U-shaped bracket 18, and the movable positioning frame 37 is slidably inserted into the interior of the displacement hole. When it is necessary to connect with socket strips of different thicknesses, the power adapter 24 can be inserted into the external socket strip, and then the movable positioning frame 37 can be moved up and down until the movable positioning frame 37 is adapted to the socket strip, and then the bolt 36 is screwed and rotated until it is tightened with the movable positioning frame 37, so that the movable positioning frame 37 can contact with socket strips of different thicknesses to complete the work.

[0054] 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 power adapter that is easy to fix, comprising a support mechanism (1), a wire plug (2) is slidably inserted into the rear end of the support mechanism (1), and a wire (3) is fixedly installed at one end of the wire plug (2) away from the support mechanism (1), characterized in that: The support mechanism (1) comprises a synchronization device (4) and a positioning component (5), wherein the synchronization device (4) is fixedly mounted at the rear end of the positioning component (5), the synchronization device (4) comprises a connector (9), a support side plate (35), a cross bar (7) and a special-shaped gas cylinder (11), wherein the special-shaped gas cylinder (11) is fixedly mounted at both ends of the connector (9), the support side plates (35) are symmetrically fixedly mounted at both ends of the rear side of the connector (9), the cross bar (7) is fixedly mounted between the two support side plates (35), a first piston rod (10) is slidably inserted into the front end of the special-shaped gas cylinder (11), a second piston rod (12) is slidably inserted into the rear end of the special-shaped gas cylinder (11), a limiting bracket (8) is fixedly mounted at one end of the second piston rod (12) away from the special-shaped gas cylinder (11), and a first spring (6) is fixedly mounted between the limiting bracket (8) and the support side plate (35).

2. The power adapter that is easy to fix according to claim 1, characterized in that: The positioning component (5) comprises a limiting device (13), a connecting device (14), a guiding device (15) and a special-shaped bracket (16); the limiting device (13) is symmetrically slidably inserted into the bottom ends of both sides of the connecting device (14); the special-shaped bracket (16) is fixedly mounted on the limiting device (13); and the guiding device (15) is threadedly sleeved on the top end of the connecting device (14).

3. The power adapter that is easy to fix according to claim 2, characterized in that: The limiting device (13) comprises a first rack (17) and a U-shaped bracket (18), wherein the first rack (17) is fixedly mounted on the top end of the U-shaped bracket (18); When the first rack (17) is displaced, it can drive the U-shaped bracket (18) to contact with an external socket.

4. The power adapter that is easy to fix according to claim 3, characterized in that: The connecting device (14) comprises a power adapter (24), a gear (23), a guide bracket (22) and a screw rod (26), wherein the screw rod (26) is rotatably mounted on the top of the power adapter (24), the gear (23) is symmetrically rotatably mounted on both sides of the power adapter (24), the guide bracket (22) is symmetrically fixedly mounted on both sides of the power adapter (24), and the guide bracket (22) is located below the gear (23), heat dissipation holes (21) are provided inside the two sides of the power adapter (24), and the heat dissipation holes (21) are located above the gear (23), and the top of the power adapter (24) is symmetrically fixedly mounted with a guide top. Rod (25), a vertical plate (19) is symmetrically fixedly installed at the inner top of the power adapter (24), a positioning base rod (27) is fixedly installed on the top of the side end of the vertical plate (19) close to the heat dissipation hole (21), a sealing plug (20) is slidably sleeved on the positioning base rod (27), a first alignment key (29) is fixedly installed on the side end of the sealing plug (20) close to the vertical plate (19), and the first alignment key (29) is located below the positioning base rod (27), a second spring (28) is fixedly installed between the sealing plug (20) and the vertical plate (19), and the second spring (28) is located between the positioning base rod (27) and the first alignment key (29); When the gear (23) rotates, it can drive the first rack (17) and the U-shaped bracket (18) to move.

5. The power adapter that is easy to fix according to claim 4, characterized in that: The guide device (15) comprises a connecting cross frame (34) and a synchronous cross bar (33), wherein the synchronous cross bar (33) is fixedly mounted at two ends of the bottom of the connecting cross frame (34), and second racks (32) are fixedly mounted at both ends of the synchronous cross bar (33), and two connecting round rods (30) are fixedly mounted at the bottom end of the connecting cross frame (34), and the connecting round rods (30) are located on the inner side of the synchronous cross bar (33), and a second alignment key (31) is fixedly mounted at the bottom end of the connecting round rod (30); When the second rack (32) moves downward, it can drive the gear (23) to rotate, so that the first rack (17) can drive the special-shaped bracket (16) to move.

6. The power adapter that is easy to fix according to claim 5, characterized in that: The connecting head (9) is fixedly mounted on the rear end of the power adapter (24), the first piston rod (10) is connected to the rear end of the special-shaped bracket (16), the first rack (17) is meshed with the bottom end of the gear (23), the second rack (32) is meshed with the gear (23), the top center thread of the connecting cross frame (34) is sleeved on the outer ring of the screw rod (26), and the connecting round rod (30) is slidably inserted into the top end of the power adapter (24).

7. The power adapter that is easy to fix according to claim 6, characterized in that: The interior of the special-shaped air cylinder (11) is arranged in a hollow state, and a closed cavity is formed between the first piston rod (10), the special-shaped air cylinder (11) and the second piston rod (12); the limiting bracket (8) is slidably sleeved between the two cross bars (7); a groove is provided at the front center of the limiting bracket (8); the top end of the U-shaped bracket (18) is slidably inserted into the interior of the guide bracket (22); and the heat dissipation hole (21) is horizontally aligned with the sealing plug (20).

8. The power adapter that is easy to fix according to claim 7, characterized in that: The first alignment key (29) is disposed at a 45° angle at the bottom of the side end close to the vertical plate (19) and the top of the side end of the second alignment key (31) is disposed away from the second rack (32). Circular holes are symmetrically provided at the top end of the connecting cross frame (34). A socket is symmetrically provided inside the top end of the power adapter (24) close to the screw rod (26).

9. The power adapter that is easy to fix according to claim 8, characterized in that: A movable hole is provided inside the guide bracket (22), the gear (23) is 1 cm thick, the rear ends of the first rack (17) and the second rack (32) are both 0.5 cm, and the first rack (17) and the second rack (32) are arranged to be staggered with each other, and a threaded hole is provided at the top center of the connecting cross frame (34).

10. The power adapter that is easy to fix according to claim 9, characterized in that: The U-shaped bracket (18) further comprises a bolt (36) and a movable positioning bracket (37), wherein the movable positioning bracket (37) is slidably inserted into the bottom end of the U-shaped bracket (18), and the bolt (36) is threadedly inserted into the side end of the U-shaped bracket (18).

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