CN113241929B

CN113241929B - Computer power adapter with take-up function

Info

Publication number: CN113241929B
Application number: CN202110497568.9A
Authority: CN
Inventors: 庞智超; 杨晓明
Original assignee: Shenzhen Llano Technology Development Co ltd
Current assignee: Shenzhen Llano Technology Development Co ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2022-11-29
Anticipated expiration: 2041-05-07
Also published as: CN113241929A

Abstract

The invention discloses a computer power adapter with a wire winding function, which comprises a power adapter and a protection assembly, wherein a transformation assembly is fixedly connected to an inner cavity of the power adapter, a jack power wire is communicated with the bottom of the power adapter, the connecting end of the jack power wire is electrically connected with the connecting end of the transformation assembly, a rotating rod is rotatably connected to the right side of the power adapter, and one end of the rotating rod penetrates through one side of the power adapter and extends to the inner cavity of the power adapter. This computer power adapter with receive line function, when receiving the line, rotate the rolling disc, the rolling disc that makes through conducting seat and conducting rod can the rotation, and the rolling disc rotates and withdraws the socket power cord, makes its winding on the surface of rolling disc, and it is very convenient to accomodate and unwrapping wire, can not cause the damage to the socket power cord to can receive power adapter's inner chamber with the line, it is more convenient to accomodate.

Description

Computer power adapter with take-up function

Technical Field

The invention relates to the technical field of power adapters, in particular to a computer power adapter with a wire receiving function.

Background

The power adapter is a power supply conversion device of small portable electronic equipment and electronic appliances, generally comprises components such as a shell, a transformer, an inductor, a capacitor, a control IC (integrated circuit), a PCB (printed circuit board) and the like, and the working principle of the power adapter is that alternating current input is converted into direct current output; according to the connection mode, the device can be divided into a wall-inserting type and a desktop type. The intelligent anti-theft device is widely matched with security cameras, set top boxes, routers, light bars, massage instruments and other equipment.

When the computer is used, voltage conversion is needed through a power adapter.

According to the portable computer power adapter described in patent No. CN107831838A, the power cord can be stored in the device by connecting the charging cord and the spring together by utilizing the elasticity of the spring.

The comparison document 1 has the following problems in use:

(1) The wire winding machine has the advantages that the wire winding machine can not normally work when the spring reaches the service life, the wire winding speed is too high, the line is easily damaged, the line is clamped through the wire clamping sheet, and the surface of the line is easily damaged after a long time, so that electric leakage is caused.

(2) When the wire clamping piece fails, the spring pulls the wire, so that the plug is easily damaged.

(3) After the wire is taken up, the wire cannot be cleaned, and the wire can be brought into the shell when being polluted by dust and water.

According to a portable power adapter for a notebook computer that patent number is CN109782887A, through setting up spliced pole, buckle, draw-in groove, card strip and opening, twine the power adapter both sides respectively with plug power cord and jack power cord.

The comparison document 2 has the following problems in use:

(1) The circuit is accommodated outside, influencing the pleasing to the eye.

(2) The anti-falling capacity is not provided, and the clamping structure and the adapter body are easily damaged when falling.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a computer power adapter with a wire winding function, which solves the problems that the wire winding is carried out by utilizing the flexibility of a spring, the spring cannot work normally when the spring reaches the service life, the wire winding speed is too high, the wire is easy to be damaged, the wire is clamped by a wire clamping piece, and the surface of the wire is easy to damage after a long time, so that the electric leakage is caused.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a computer power adapter with receive line function, includes power adapter and protection component, power adapter's inner chamber fixedly connected with vary voltage subassembly, power adapter's bottom intercommunication has the jack power cord, the link of jack power cord and vary voltage subassembly's link electric connection, power adapter's right side is rotated and is connected with the dwang, the one end of dwang runs through one side of power adapter and extends to power adapter's inner chamber, the dwang is located power adapter's inner chamber fixedly connected with take-up pulley, one side fixedly connected with conducting seat of power adapter inner chamber, the left side fixedly connected with conducting rod of take-up pulley, the right side of conducting seat is run through and extends to the inner chamber of conducting seat to the left end of conducting rod, the surface of conducting rod rotates with the inner chamber of conducting seat to be connected, the surface winding of take-up pulley has the socket power cord, the link of socket power cord and the link electric connection of conducting rod, the link of conducting seat passes through wire and vary voltage subassembly's dwang surface electric connection, the surface fixedly connected with rolling disc that is located the power adapter outside, the isolated surface in the rolling disc in power adapter, the inner chamber fixedly connected with isolated surface of power adapter, the power box, the one end of socket runs through and extends to the outer chamber of socket case, the sliding connection of socket case and the power cord sliding connection of socket.

As a further scheme of the invention: the surface of the conductive seat is fixedly connected with a ball, one side of the take-up pulley is fixedly connected with a ferrule sleeved on the surface of the conductive seat, the surface of the ball penetrates through the inner wall of the ferrule and extends to the inner cavity of the ferrule, and the surface of the ball is in rolling connection with the inner cavity of the ferrule.

As a further scheme of the invention: the inner cavity of the isolation box is fixedly connected with a wiping cotton ring, and the wiping cotton ring is sleeved on the surface of the socket power line.

As a further scheme of the invention: the right side fixedly connected with fixing base of power adapter, the inner chamber of fixing base rotates through the torsional spring and is connected with splint, one side fixedly connected with arc butt joint piece of splint.

As a further scheme of the invention: the protection subassembly includes swing joint at power adapter top upper buffer block and swing joint all around lower buffer block in power adapter bottom, go up all through the connecting strip connection between the buffer block and between the adjacent lower buffer block.

As a further scheme of the invention: the top fixedly connected with elastic strip of buffer block down, the top fixedly connected with joint ball of elastic strip, go up the inner chamber of buffer block and seted up entering groove and spacing groove respectively, the inner chamber of entering groove and the inner chamber intercommunication of spacing groove, the size of elastic strip is less than the inner chamber of entering groove and spacing groove, the internal diameter of joint ball is less than the internal diameter of entering groove, the internal diameter of joint ball is greater than the internal diameter of spacing groove.

As a further scheme of the invention: the surface of the conductive seat is coated with an insulating layer.

As a further scheme of the invention: the use method of the power adapter comprises the following steps:

step one, when a wire is taken up, a rotating disc is rotated to drive a rotating rod to rotate clockwise, the rotating rod drives a take-up pulley to rotate to drive a conductive rod to rotate in a conductive seat, the rotating disc rotates to withdraw a socket power line so that the socket power line is wound on the surface of the take-up pulley, the socket power line is wiped by a cotton ring through an isolation box when being withdrawn, then a clamping plate is rotated to move towards a direction far away from a power adapter, then a jack power line is placed between the clamping plate and the power adapter, the clamping plate is loosened, and the torsion spring drives the clamping plate to turn over to clamp the jack power line;

step two, when paying off, pulling a socket power line to drive a take-up pulley to reversely rotate anticlockwise so as to send out the socket power line, pulling out a clamping plate after the socket power line is pulled out to a proper length, taking out a jack power line, inserting the jack power line into a socket, supplying power to the socket power line, conveying the power to a conductive seat through a conductive rod, conveying the power to a voltage transformation assembly through a wire, and outputting the power to a computer through the jack power line;

step three, installing the protection assembly, sleeving four upper buffer blocks at four corners of the top of the power adapter, sleeving four lower buffer blocks at four corners of the bottom of the power adapter, then pulling the elastic strips to clamp the clamping balls into the inlet grooves, clamping the elastic strips into the limiting grooves, pulling the clamping balls downwards by the elastic strips to clamp the clamping balls into the limiting grooves, limiting the elastic strips, and installing the upper buffer blocks and the lower buffer blocks on the surface of the power adapter.

Advantageous effects

The invention provides a computer power adapter with a wire receiving function. Compared with the prior art, the method has the following beneficial effects:

1. a computer power adapter with a wire winding function is characterized in that a variable voltage component is fixedly connected to the inner cavity of the power adapter, a jack power wire is communicated with the bottom of the power adapter, the connecting end of the jack power wire is electrically connected with the connecting end of the variable voltage component, a rotating rod is rotatably connected to the right side of the power adapter, one end of the rotating rod penetrates through one side of the power adapter and extends to the inner cavity of the power adapter, the rotating rod is positioned on a wire winding wheel fixedly connected to the inner cavity of the power adapter, a conductive seat is fixedly connected to one side of the inner cavity of the power adapter, a conductive rod is fixedly connected to the left side of the wire winding wheel, the left end of the conductive rod penetrates through the right side of the conductive seat and extends to the inner cavity of the conductive seat, the surface of the conductive rod is rotatably connected with the inner cavity of the conductive seat, and a socket power wire is wound on the surface of the wire winding wheel, the connecting end of the socket power line is electrically connected with the connecting end of the conducting rod, the connecting end of the conducting seat is electrically connected with the surface of the voltage transformation component through a conducting wire, the surface of the rotating rod, which is positioned outside the power adapter, is fixedly connected with a rotating disc, the surface of the rotating disc is embedded in the surface of the power adapter, the inner cavity of the power adapter is fixedly connected with an isolation box, one end of the socket power line penetrates through and extends to the outer side of the isolation box, the surface of the socket power line is in sliding connection with the inner cavity of the isolation box, when the wire is wound, the rotating disc is rotated, the rotating disc can rotate through the conducting seat and the conducting rod, the socket power line is wound on the surface of the rotating disc, the storage and the wire unwinding are very convenient, the socket power line cannot be damaged, and the wire can be wound into the inner cavity of the power adapter, it is more convenient to accomodate.

2. The utility model provides a computer power adapter with receive line function, through power adapter's isolated case of inner chamber fixedly connected with, the one end of socket power cord runs through and extends to the outside of isolated case, the surface of socket power cord and the inner chamber sliding connection of isolated case, through isolated case when socket power cord withdraws, clean the dirt of cotton circle with socket power cord surface and wipe, prevent that socket power cord is infected with external dust and water stain and enter into inside the power adapter.

3. The utility model provides a computer power adapter with receive line function, includes swing joint at power adapter top last buffer block and swing joint all around lower buffer block in power adapter bottom through the protection subassembly, it connects through the connecting strip between two liang to go up the buffer block, the buffer block is connected through the connecting strip between two liang down, install the protection subassembly, establish the four corners at power adapter top with four last buffer block covers, establish four lower buffer block covers in the four corners of power adapter bottom, then stimulate the elastic strip, in the income groove is received to the joint ball joint, the elastic strip joint advances the spacing inslot, the elastic strip pulls the joint ball downwards for the joint ball joint is to the spacing inslot, carry on spacingly to the elastic strip, will go up the buffer block and install on the surface at power adapter with lower buffer block, the protection subassembly can play good guard action to the four corners when power adapter drops, increase its anti falling ability.

Drawings

FIG. 1 is a schematic external view of the present invention;

FIG. 2 is a cross-sectional view of the assembled protective assembly of the present invention;

FIG. 3 is a front view of the structure of the protective assembly of the present invention after installation;

FIG. 4 is an enlarged view of a portion of the invention at A in FIG. 2;

FIG. 5 is an enlarged view of a portion of the invention at B in FIG. 3;

FIG. 6 is a front view of the structure of the upper buffer block of the present invention.

In the figure: 1. a power adapter; 2. a voltage transformation assembly; 3. a jack power cord; 4. rotating the rod; 5. a take-up pulley; 6. a conductive seat; 7. a conductive rod; 8. a socket power cord; 9. rotating the disc; 10. an isolation box; 11. a ball bearing; 12. wiping the cotton ring; 13. a fixed seat; 14. a splint; 15. an upper buffer block; 16. a lower buffer block; 17. an elastic strip; 18. clamping the ball; 19. entering the groove; 20. a limiting groove; 21. and (4) looping.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a computer power adapter with a wire winding function comprises a power adapter 1 and a protection component, wherein a transformation component 2 is fixedly connected with an inner cavity of the power adapter 1, the bottom of the power adapter 1 is communicated with a jack power wire 3, a connecting end of the jack power wire 3 is electrically connected with a connecting end of the transformation component 2, the right side of the power adapter 1 is rotatably connected with a rotating rod 4, one end of the rotating rod 4 penetrates through one side of the power adapter 1 and extends to the inner cavity of the power adapter 1, the rotating rod 4 is positioned in the inner cavity of the power adapter 1 and is fixedly connected with a wire winding wheel 5, one side of the inner cavity of the power adapter 1 is fixedly connected with a conductive seat 6, the left side of the wire winding wheel 5 is fixedly connected with a conductive rod 7, the left end of the conductive rod 7 penetrates through the right side of the conductive seat 6 and extends to the inner cavity of the conductive seat 6, and the surface of the conductive rod 7 is rotatably connected with the inner cavity of the conductive seat 6, the surface of the take-up pulley 5 is wound with a socket power cord 8, the connecting end of the socket power cord 8 is electrically connected with the connecting end of the conducting rod 7, the connecting end of the conducting seat 6 is electrically connected with the surface of the voltage transformation component 2 through a conducting wire, the surface of the rotating rod 4, which is positioned outside the power adapter 1, is fixedly connected with a rotating disc 9, the surface of the power adapter 1 is embedded in the rotating disc 9, when the wire is taken up, the rotating disc 9 is rotated, the rotating disc 9 can rotate through the conducting seat 6 and the conducting rod 7, the socket power cord 8 is withdrawn by the rotation of the rotating disc 9, so that the socket power cord is wound on the surface of the rotating disc 9, the storage and the paying-off are very convenient, the socket power cord 8 cannot be damaged, the wire can be taken in the inner cavity of the power adapter 1, the storage is more convenient, the inner cavity of the power adapter 1 is fixedly connected with an isolation box 10, one end of the socket power cord 8 penetrates through and extends to the outer side of the isolation box 10, the surface of a socket power line 8 is connected with the inner cavity of an isolation box 10 in a sliding manner, when the socket power line 8 is withdrawn, the socket power line passes through the isolation box 10, a wiping cotton ring 12 wipes dirt on the surface of the socket power line 8, the socket power line 8 is prevented from being contaminated by external dust and water stain entering the power adapter 1, a ball 11 is fixedly connected to the surface of a conductive seat 6, a ferrule 21 sleeved on the surface of the conductive seat 6 is fixedly connected to one side of a take-up wheel 5, the surface of the ball 11 penetrates through the inner wall of the ferrule 21 and extends into the inner cavity of the ferrule 21, the surface of the ball 11 is connected with the inner cavity of the ferrule 21 in a rolling manner, the inner cavity of the isolation box 10 is fixedly connected with the wiping cotton ring 12, the wiping cotton ring 12 is sleeved on the surface of the socket power line 8, a fixed seat 13 is fixedly connected to the right side of the power adapter 1, the inner cavity of the fixed seat 13 is connected with a clamping plate 14 through a torsion spring in a rotating manner, and one side of the clamping plate 14 is fixedly connected with an arc abutting block, the protection component comprises upper buffer blocks 15 movably connected to the periphery of the top of the power adapter 1 and lower buffer blocks 16 movably connected to the periphery of the bottom of the power adapter 1, the upper buffer blocks 15 and the adjacent lower buffer blocks 16 are connected through connecting strips, the top of each lower buffer block 16 is fixedly connected with an elastic strip 17, the top end of each elastic strip 17 is fixedly connected with a clamping ball 18, an inner cavity of each upper buffer block 15 is respectively provided with an inlet groove 19 and a limiting groove 20, the inner cavity of each inlet groove 19 is communicated with the inner cavity of each limiting groove 20, the size of each elastic strip 17 is smaller than the inner cavities of each inlet groove 19 and each limiting groove 20, the inner diameter of each clamping ball 18 is smaller than that of each inlet groove 19, the inner diameter of each clamping ball 18 is larger than that of each limiting groove 20, the surface of the conductive seat 6 is coated with an insulating layer to install the protection component, the four upper buffer blocks 15 are sleeved at four corners of the top of the power adapter 1, the four lower buffer blocks 16 are sleeved at four corners of the bottom of the power adapter 1, then the elastic strips 17 are pulled, the clamping balls 18 are clamped into the entering grooves 19, the elastic strips 17 are clamped into the limiting grooves 20, the clamping balls 18 are pulled downwards by the elastic strips 17, the clamping balls 18 are clamped into the limiting grooves 20, the elastic strips 17 are limited, the upper buffer blocks 15 and the lower buffer blocks 16 are installed on the surface of the power adapter 1, and the protection assembly can play a good protection role for the four corners when the power adapter 1 falls down and increase the anti-falling capacity of the protection assembly;

the use method of the power adapter comprises the following steps:

step one, when a wire is wound, a rotating disc 9 is rotated to drive a rotating rod 4 to rotate clockwise, the rotating rod 4 drives a wire winding wheel 5 to rotate, a conductive rod 7 is driven to rotate in a conductive seat 6, the rotating disc 9 rotates to withdraw a socket power cord 8, so that the socket power cord 8 is wound on the surface of the wire winding wheel 5, when the socket power cord 8 is withdrawn, a wiping cotton ring 12 wipes dirt on the surface of the socket power cord 8 through an isolation box 10, then a clamping plate 14 is rotated to enable the clamping plate 14 to move towards a direction far away from a power adapter 1, then a jack power cord 3 is placed between the clamping plate 14 and the power adapter 1, the clamping plate 14 is loosened, and a torsion spring drives the clamping plate 14 to turn over to clamp the jack power cord 3;

step two, during paying off, pulling the socket power line 8 to drive the take-up pulley 5 to rotate anticlockwise reversely, sending the socket power line 8 out, pulling the clamping plate 14 open after the socket power line 8 is pulled out to a proper length, taking out the jack power line 3, inserting the jack power line into a socket, supplying power to the socket power line 8, conveying the power into the conductive seat 6 through the conductive rod 7, conveying the power into the voltage transformation assembly 2 through a wire, and outputting the power to a computer through the jack power line 3;

step three, the protection assembly is installed, four upper buffer blocks 15 are sleeved at four corners of the top of the power adapter 1, four lower buffer blocks 16 are sleeved at four corners of the bottom of the power adapter 1, then the elastic strip 17 is pulled, the clamping ball 18 is clamped into the inlet groove 19, the elastic strip 17 is clamped into the limiting groove 20, the clamping ball 18 is pulled downwards by the elastic strip 17, the clamping ball 18 is clamped into the limiting groove 20, the elastic strip 17 is limited, and the upper buffer blocks 15 and the lower buffer blocks 16 are installed on the surface of the power adapter 1.

When the socket power cord is used and wound up, the rotating disc 9 is rotated to drive the rotating disc 4 to rotate clockwise, the rotating disc 4 drives the rotating disc 9 to rotate, the conductive rod 7 is driven to rotate in the conductive seat 6, the rotating disc 9 rotates to withdraw the socket power cord 8 so as to wind the socket power cord 8 on the surface of the rotating disc 9, the socket power cord 8 is withdrawn, the dirt on the surface of the socket power cord 8 is wiped by the wiping cotton ring 12 through the isolating box 10, then the clamping plate 14 is rotated to enable the socket power cord to move towards the direction far away from the power adapter 1, then the jack power cord 3 is placed between the clamping plate 14 and the power adapter 1, the clamping plate 14 is loosened, and the torsion spring drives the clamping plate 14 to overturn so as to clamp the jack power cord 3; when the wire is paid off, the socket power line 8 is pulled to drive the rotating disc 9 to rotate anticlockwise reversely, the socket power line 8 is sent out, the clamping plate 14 is pulled open after the socket power line 8 is pulled out to a proper length, the jack power line 3 is taken out and inserted into a socket, the socket power line 8 is supplied with power, the power is transmitted into the conductive seat 6 through the conductive rod 7 and is transmitted into the voltage transformation assembly 2 through a wire, and the power is output through the jack power line 3 to supply power to a computer; install protection component, the four corners at power adapter 1 top is established to buffer block 15 cover on will four, establish the four corners in power adapter 1 bottom with four lower buffer block 16 covers, then pulling elastic strip 17, in getting into groove 19 with joint ball 18 joint, elastic strip 17 joint is gone into spacing groove 20, elastic strip 17 pulls joint ball 18 downwards for joint ball 18 joint is in spacing groove 20, it is spacing to carry out elastic strip 17, will go up buffer block 15 and lower buffer block 16 and install the surface at power adapter 1.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. The utility model provides a computer power adapter with receive line function, includes power adapter (1) and protection component, the inner chamber fixedly connected with vary voltage subassembly (2) of power adapter (1), the bottom intercommunication of power adapter (1) has jack power cord (3), the link of jack power cord (3) and the link electric connection of vary voltage subassembly (2), its characterized in that: the right side of power adapter (1) is rotated and is connected with dwang (4), the one end of dwang (4) runs through one side of power adapter (1) and extends to the inner chamber of power adapter (1), dwang (4) are located the inner chamber fixedly connected with take-up pulley (5) of power adapter (1), the electrically conductive seat (6) of one side fixedly connected with of power adapter (1) inner chamber, the left side fixedly connected with conducting rod (7) of take-up pulley (5), the left end of conducting rod (7) runs through the right side of electrically conductive seat (6) and extends to the inner chamber of electrically conductive seat (6), the surface of conducting rod (7) is connected with the inner chamber rotation of electrically conductive seat (6), the surface winding of take-up pulley (5) has socket power cord (8), the link of socket power cord (8) and the link electric connection of electrically conductive rod (7), the link of electrically conductive seat (6) passes through the surface electric connection of wire and vary voltage subassembly (2), the surface fixed connection that power adapter (4) are located power adapter (1) outside is connected with carousel (9), the power adapter (9) is inlayed in the surface of power adapter (10) and is connected with isolated power box (10), the inner chamber (10) of power adapter (10) extends to the isolated power adapter box outside, the surface of the socket power line (8) is in sliding connection with the inner cavity of the isolation box (10); the surface of the conductive seat (6) is fixedly connected with a ball (11), one side of the take-up pulley (5) is fixedly connected with a ferrule (21) sleeved on the surface of the conductive seat (6), the surface of the ball (11) penetrates through the inner wall of the ferrule (21) and extends to the inner cavity of the ferrule (21), and the surface of the ball (11) is in rolling connection with the inner cavity of the ferrule (21); the inner cavity of the isolation box (10) is fixedly connected with a wiping cotton ring (12), and the wiping cotton ring (12) is sleeved on the surface of the socket power line (8); a fixed seat (13) is fixedly connected to the right side of the power adapter (1), an inner cavity of the fixed seat (13) is rotatably connected with a clamping plate (14) through a torsion spring, and an arc-shaped abutting block is fixedly connected to one side of the clamping plate (14); the protection assembly comprises upper buffer blocks (15) movably connected to the periphery of the top of the power adapter (1) and lower buffer blocks (16) movably connected to the periphery of the bottom of the power adapter (1), and the upper buffer blocks (15) and the adjacent lower buffer blocks (16) are connected through connecting strips; the top of the lower buffer block (16) is fixedly connected with an elastic strip (17), the top end of the elastic strip (17) is fixedly connected with a clamping ball (18), an inlet groove (19) and a limiting groove (20) are respectively formed in the inner cavity of the upper buffer block (15), the inner cavity of the inlet groove (19) is communicated with the inner cavity of the limiting groove (20), the size of the elastic strip (17) is smaller than the inner cavities of the inlet groove (19) and the limiting groove (20), the inner diameter of the clamping ball (18) is smaller than the inner diameter of the inlet groove (19), and the inner diameter of the clamping ball (18) is larger than the inner diameter of the limiting groove (20); the surface of the conductive seat (6) is coated with an insulating layer;

the use method of the power adapter comprises the following steps:

step one, when a wire is taken up, a rotating disc (9) is rotated to drive a rotating rod (4) to rotate clockwise, the rotating rod (4) drives a take-up pulley (5) to rotate, a conductive rod (7) is driven to rotate in a conductive seat (6), the rotating disc (9) rotates to withdraw a socket power line (8), the socket power line is wound on the surface of the take-up pulley (5), the socket power line (8) is wiped by a cleaning cotton ring (12) through an isolation box (10) when being withdrawn, then a clamping plate (14) is rotated to move towards the direction far away from a power adapter (1), then a jack power line (3) is placed between the clamping plate (14) and the power adapter (1), the clamping plate (14) is loosened, the torsion spring drives the clamping plate (14) to turn over, and the jack power line (3) is clamped;

step two, when paying off, pulling a socket power line (8), driving a take-up pulley (5) to rotate anticlockwise, sending the socket power line (8), pulling the socket power line (8) to a proper length, pulling a clamping plate (14) open, taking out a jack power line (3), inserting the jack power line into a socket, supplying power to the socket power line (8), conveying the socket power line into a conductive seat (6) through a conductive rod (7), conveying the socket power line into a voltage transformation assembly (2) through a wire, and outputting the socket power line (3) to supply power to a computer;

step three, the protection assembly is installed, four upper buffer blocks (15) are sleeved at four corners of the top of the power adapter (1), four lower buffer blocks (16) are sleeved at four corners of the bottom of the power adapter (1), then the elastic strip (17) is pulled, the clamping ball (18) is clamped into the inlet groove (19), the elastic strip (17) is clamped into the limiting groove (20), the clamping ball (18) is pulled downwards by the elastic strip (17), the clamping ball (18) is clamped into the limiting groove (20), the elastic strip (17) is limited, the upper buffer blocks (15) and the lower buffer blocks (16) are installed on the surface of the power adapter (1), the protection assembly can play a good protection role on the four corners when the power adapter falls, and the resistance of the protection assembly is improved.