Anti-drop power adapter

Abstract

The utility model belongs to the field of power electronics and power management, and particularly relates to an anti-drop power adapter, which comprises a charging head, two pins, a take-up reel, a limiting column, a shaft seat, a shaft rod and the like, the two pins are distributed up and down and are rotatably connected to the front part of the charging head, and the front part of the charging head is provided with two square cavities; the limiting column is fixedly connected to the position, close to the edge, of the inner top end of the take-up reel, the shaft seat is fixedly connected into the take-up reel, and the shaft rod is rotationally connected to the center point position in the take-up reel and penetrates through the shaft seat to be rotationally connected with the shaft seat. Through the design of the rotary pins, when the power adapter is not used, the pins can be rotated by 90 degrees anticlockwise and rotated into the square cavity in the front of the charging head, so that the power adapter is convenient to carry and protects the pins from being damaged, and through the design of the protection assembly, the protection shell completely covers the upper, lower, left and right sides of the charging head and aligns the front and rear sides of the charging head. All key parts of the charging head are fully protected, and the anti-falling performance is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of power electronics and power management, especially relates to a fall -resistant power adapter. BACKGROUND

[0002] The power adapter is a device for converting alternating current into direct current or alternating current of different voltage levels. It is widely used in various electronic devices, such as notebook computers, mobile phones, tablet computers, power tools, smart home devices, etc., to provide the required power for these devices.

[0003] Although the ordinary power adapter can meet the basic needs of daily use, there are some potential problems in the use process. Because the pins are usually made of relatively soft metal materials (such as copper alloy), such materials are easy to bend or deform when subjected to external force impact. When the power adapter falls from a high place, the pins may be thrown off, resulting in the inability to be normally inserted into the socket, affecting the convenience and safety of use, and the overall structure of the charging head may be damaged, the shell may crack or break, further increasing the safety hazard.

[0004] Therefore, there is a particular need for a fall -resistant power adapter to solve the above problems. SUMMARY

[0005] In order to overcome the shortcomings of the pins of the ordinary power adapter being easy to deform under external force impact, resulting in difficulty in insertion, and the charging head shell being possibly damaged, increasing the safety hazard, the utility model provides a fall -resistant power adapter.

[0006] The utility model discloses a power adapter of preventing falling, including charging head, plug pin, charging wire, take -up reel, limiting post, axle seat, scroll spring, axle rod, ratchet gear, pawl, metal spring piece and baffle, two plug pins are distributed upside and down, and are rotatably connected in the front of charging head, and the front of charging head is equipped with two square cavities, and the limiting post is fixedly connected with the position of the inner top end of take -up reel near the edge, and the axle seat is fixedly connected with the inside of take -up reel, and the axle rod is rotatably connected with the center point position of the inside of take -up reel, and passes through axle seat and rotatably connected with it, and the majority of the line body of charging wire is arranged on the outside of axle rod, and one end is taken out from the front of take -up reel and is inserted in the rear of charging head, and the other end is taken out from the rear of take -up reel, and scroll spring is placed between take -up reel and axle seat, and its both ends are fixedly connected with limiting post and axle rod respectively, and axle seat is located below scroll spring, and ratchet gear is rotatably connected on the outside of axle rod and is located in the inside of axle seat, and pawl is rotatably connected on axle seat, and one end is clamped with ratchet gear, and the other end is slidably contacted with take -up reel, and metal spring piece is installed on axle seat and is fixedly connected with one end of pawl, and the baffle of coil structure is fixedly connected with the inner bottom end of take -up reel, and the line body of charging wire in the inside of take -up reel is arranged in the guide groove of baffle, and the baffle is provided with the notch for accommodating the line body of charging wire to pass, and further include protection assembly, the protection assembly for protecting charging head is set up in the outside of charging head.

[0007] Optionally, the protection assembly comprises a protective shell, a cover plate and a clamping rod, the protective shell is sleeved on the outside of the charging head, completely covers the charging head on the four sides, and the front and rear sides of the protective shell are vertically aligned with the front and rear sides of the charging head, the front of the protective shell is provided with a plurality of stoppers, the two cover plates are left-right symmetrical, rotatably connected to the rear of the protective shell, the two clamping rods are symmetrically distributed, fixedly connected to the rear of the cover plate, and the two clamping holes matched with the two clamping rods are formed in the rear of the protective shell.

[0008] Optionally, it further comprises a first sleeve, a plug rod and a second sleeve, the first sleeve and the second sleeve are distributed above and below and contact with each other, the plurality of plug rods are distributed left and right and fixedly connected to the top end of the first sleeve, the plurality of plug holes are distributed left and right and formed in the bottom end of the second sleeve, and the number of the plug rods and the plug holes is the same and matched one by one, so that the first sleeve is connected to the second sleeve to form a complete wire protection sleeve, and the number of the wire protection sleeve is two, one of which is sleeved on one end of the charging wire and the other is sleeved on the other end of the charging wire.

[0009] Optionally, it further comprises a reinforcing rib, the two reinforcing ribs are symmetrically distributed above and below and fixedly connected to the front of the charging head.

[0010] Optionally, it further comprises a plug sleeve, each plug sleeve is sleeved on the outside of each plug pin, and the plug sleeve is made of insulating material.

[0011] Optionally, lightning-shaped heat dissipation grooves are formed in the top end and the bottom end of the protective shell.

[0012] Optionally, the protective shell is made of high-strength, wear-resistant and elastic material, and the four corners are designed in a rounded shape.

[0013] Optionally, a wiping sleeve is arranged on the threading hole at the rear of the take-up reel.

[0014] Optionally, a guide block for guiding the charging wire is arranged on the upper end of the shaft.

[0015] Optionally, the plug rod and the clamping rod are made of rubber or silicone.

[0016] As can be seen from the above description of the structure of the utility model, the starting point, concept and advantages of the utility model are:

[0017] Through the design of the rotating plug, the power adapter can rotate the plug counterclockwise by 90 degrees when not in use, and turn into the square cavity in front of the charging head, which is convenient to carry and protects the plug from damage. Through the design of the protection assembly, the protective shell completely covers the upper, lower, left and right sides of the charging head, and aligns the front and rear sides of the charging head, ensuring that all critical parts of the charging head are fully protected, and significantly improving the drop resistance.

[0018] Through the cooperation of the spiral spring, the shaft, the ratchet gear, the pawl and the metal spring sheet, the automatic winding and orderly storage of the charging wire are realized, the wire body is prevented from winding, the pulling out and winding of the charging wire are ensured to be smooth, the operation steps of the user are reduced, and the convenience and safety of use are improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0020] Figure 2 It is a three-dimensional structure schematic view of the charging wire and the take-up reel components of the utility model.

[0021] Figure 3 It is a three-dimensional structure schematic view of the utility model's limiting column, shaft seat and spiral spring components.

[0022] Figure 4 It is a three-dimensional structure schematic view of the utility model's shaft, ratchet gear and pawl components.

[0023] Figure 5 It is a partial sectional view of the utility model's shaft seat component.

[0024] Figure 6 It is an explosion view of the utility model's pawl, metal spring sheet and partition plate components.

[0025] Figure 7 It is a three-dimensional structure schematic view of the utility model's take-up reel, shaft and pawl components.

[0026] Figure 8 It is a three-dimensional structure schematic view of the charging wire and the second shell component of the utility model.

[0027] Figure 9 It is a three-dimensional structure schematic view of the first shell, the plug rod and the second shell and other components of the utility model.

[0028] Figure 10 It is a three-dimensional structure schematic view of the cover plate, the clamping rod and the clamping hole and other components of the utility model.

[0029] Mark explanation: 1, charging head, 101, reinforcing rib, 2, plug pin, 3, protective shell, 4, charging wire, 5, take-up reel, 6, limiting column, 61, shaft seat, 7, spiral spring, 8, shaft rod, 9, ratchet wheel, 10, pawl, 11, metal elastic sheet, 12, partition, 13, first shell, 131, plug rod, 14, second shell, 141, jack, 15, cover plate, 151, clamping rod, 152, clamping hole, 16, plug sleeve. Specific implementation

[0030] The following description is only the preferred embodiment of the utility model, and does not limit the protection scope of the utility model.

[0031] Embodiment: a power adapter of preventing falling, such as Figures 1-8 and Figure 10As shown, including the charging head 1, reinforcing ribs 101, pins 2, charging line 4, take-up reel 5, limit post 6, shaft seat 61, volute spring 7, shaft rod 8, ratchet gear 9, pawl 10, metal spring piece 11, partition plate 12 and plug sleeve 16, two reinforcing ribs 101 are symmetrically distributed up and down, connected to the front of the charging head 1 by adhesive means, which can enhance the overall structural strength of the charging head 1, prevent the charging head 1 from being deformed or damaged due to external force impact or collision, two pins 2 are distributed up and down, rotationally connected to the front of the charging head 1, the front of the charging head 1 is provided with two square cavities, which can accommodate the pins 2 to rotate in, the limit post 6 is connected to the inner top end of the take-up reel 5 near the edge by adhesive means, the shaft seat 61 is connected to the inside of the take-up reel 5 by adhesive means, the shaft rod 8 is rotationally connected to the center point position inside the take-up reel 5 and penetrates through the shaft seat 61 to rotationally connect with it, the shaft rod 8 is consistent with the height of the take-up reel 5, most of the line body of the charging line 4 is arranged outside the shaft rod 8, the front end of which penetrates out of the front of the take-up reel 5 and is plugged into the rear of the charging head 1, and the rear end penetrates out of the rear of the take-up reel 5, and the upper end of the shaft rod 8 is provided with a guide block for guiding the charging line 4, which can guide the charging line 4 to be evenly wound along the shaft rod 8, prevent the line body from knotting or crossing, also can reduce friction, position the charging line 4, ensure smooth operation each time the charging line 4 is pulled out and wound, and the through hole in the rear of the take-up reel 5 is provided with a wiping sleeve, so that the line body of the charging line 4 is cleaned by the wiping sleeve when it is pulled out of or wound into the inside of the take-up reel 5, the volute spring 7 is placed between the take-up reel 5 and the shaft seat 61, and its two ends are fixedly connected with the limit post 6 and the shaft rod 8, respectively, the shaft seat 61 is located below the volute spring 7, the ratchet gear 9 is rotationally connected outside the shaft rod 8 and located inside the shaft seat 61, the pawl 10 is rotationally connected to the shaft seat 61, the front end of which is clamped with the ratchet gear 9, and the rear end is in sliding contact with the take-up reel 5, the ratchet on the ratchet gear 9 has a slope and a straight surface, when the ratchet gear 9 rotates clockwise, the slope of the ratchet contacts the pawl 10, extruding the pawl 10 to rotate counterclockwise, when the ratchet gear 9 rotates counterclockwise, the straight surface of the ratchet contacts the pawl 10 and is stopped by the pawl 10, the metal spring piece 11 is connected to the shaft seat 61 by bolt means and fixedly connected with the front end of the pawl 10, responsible for providing the reset force of the pawl 10, ensuring that the pawl 10 automatically returns to the initial position after release, the partition plate 12 of the coil structure is connected to the inner bottom end of the take-up reel 5 by adhesive means, the line body of the charging line 4 inside the take-up reel 5 is arranged in the guide groove of the partition plate 12, so that the line body of the charging line 4 is orderly received in the inside of the take-up reel 5, preventing the line body from winding, ensuring the charging line 4 to be pulled out and wound smoothly, and the partition plate 12 is provided with a slot for accommodating the line body of the charging line 4 to pass through, each plug sleeve 16 is sleeved outside each pin 2, and the plug sleeve 16 is made of insulating material, such as thermoplastic elastomer or silicone, which not only can enhance the stability of the pin 2 when inserted into the socket, but also can effectively protect the pin 2 from oxidation, corrosion and dust, prolong its service life and improve its safety, and further comprising a protection assembly,The protection assembly for protecting the charging head 1 is arranged outside the charging head 1.

[0032] As shown in Figure 1 and Figure 10 , the protection assembly comprises a protection shell 3, a cover plate 15 and a clamping rod 151. The protection shell 3 is sleeved outside the charging head 1 and completely covers the four sides of the charging head 1. The front and rear sides of the protection shell 3 are vertically aligned with the front and rear sides of the charging head 1. The front part of the protection shell 3 is provided with a plurality of stop blocks, so that the charging head 1 can only be put in from the rear part of the protection shell 3. The rear part of the stop block has a curvature, which can better fit the curved surface of the front part of the charging head 1. The top end and the bottom end of the protection shell 3 are both provided with lightning-shaped heat dissipation grooves, which not only can realize heat dissipation of the charging head 1, ensure the stability and safety of the equipment during long-time use, but also have a unique appearance design, improve the appearance and recognition of the product. The protection shell 3 is made of a material with high strength, wear resistance and certain elasticity. The four corners are designed in a rounded shape, and additional cushioning materials such as EVA foam or silicone pads are added to further absorb impact force and reduce direct impact on the charging head 1. The two cover plates 15 are symmetrically distributed on the left and right sides and are rotationally connected to the rear part of the protection shell 3. The two clamping rods 151 are symmetrically distributed and are connected to the rear part of the cover plate 15 by adhesion. Two clamping holes 152 that are matched with the clamping rods 151 are provided in the rear part of the protection shell 3. When the clamping rods 151 are clamped in the clamping holes 152, the cover plate 15 is fixed on the protection shell 3, so that the charging head 1 is limited in the protection shell 3. The clamping rods 151 are made of rubber or silicone and have a very high friction coefficient, which can provide a very large friction force during clamping to ensure that the clamping rods 151 are firmly clamped in the clamping holes 152.

[0033] As shown in Figure 1 , Figure 8 and Figure 9 , it further comprises a first sleeve shell 13, a plug rod 131 and a second sleeve shell 14. The first sleeve shell 13 and the second sleeve shell 14 are arranged in a vertical manner and are in contact with each other. A plurality of plug rods 131 are arranged in a horizontal manner and are connected to the top end of the first sleeve shell 13 by adhesion. A plurality of plug holes 141 are arranged in a horizontal manner and are provided in the bottom end of the second sleeve shell 14. The number of plug rods 131 and plug holes 141 is the same and they are clamped one by one, so that the first sleeve shell 13 is connected to the second sleeve shell 14 to form a complete wire protection sleeve. The number of wire protection sleeves with this structure is two, one of which is sleeved on the front end of the charging wire 4 and the other is sleeved on the rear end of the charging wire 4. This structure can enhance the tensile strength, wear resistance and bending resistance of the two ends of the charging wire 4, prevent the two ends of the charging wire 4 from being damaged due to frequent bending, and facilitate disassembly and replacement of the first sleeve shell 13 and the second sleeve shell 14. The plug rod 131 is made of rubber or silicone and has a very high friction coefficient, which can provide a very large friction force during plugging to ensure that the plug rod 131 is firmly plugged into the plug hole 141.

[0034] When the user needs to use the power adapter to charge the electronic device, first hold the protective shell 3, then pull the rear end of the charging line 4 out of the take-up reel 5, when pulling out, the charging line 4 pulls the shaft rod 8 to rotate clockwise, the vortex spring 7 is deformed at the same time, at the same time, the shaft rod 8 drives the ratchet gear 9 to rotate clockwise, the ratchet gear 9 The inclined surface of the ratchet tooth is in contact with the pawl 10 in advance, and the pawl 10 is pressed to rotate counterclockwise, and the pawl 10 is disengaged from the ratchet gear 9, and the locking of the shaft rod 8 is released. At this time, the user can freely pull out the charging line 4 of the required length, when the pawl 10 rotates counterclockwise, the metal spring 11 is deformed, when the charging line 4 of the appropriate length is pulled out, stop pulling the charging line 4 (note that at this time, the charging line 4 is pulled tight, and the charging line 4 is loosened after the shaft rod 8 is locked), the shaft rod 8 stops rotating clockwise, the vortex spring 7 is in a deformed state, the metal spring 11 restores the original shape, and the pawl 10 is rotated clockwise to reset, contacts the ratchet straight surface of the ratchet gear 9, and the ratchet gear 9 is in a state of engagement, and the locking of the shaft rod 8 is restored. Prevent the charging line 4 from being accidentally wound, then insert the rear end of the charging line 4 into the charging port of the electronic device, insert the two prongs 2 of the charging head 1 into the socket, and start charging the electronic device. In the process, once the charging head 1 falls from a high place, the protective shell 3 absorbs and disperses most of the impact force, reducing the impact on the structure of the charging head 1, when the electronic device is charged, pull the rear end of the charging line 4 out of the charging port of the electronic device, pull the two prongs 2 of the charging head 1 out of the socket, then hold the rear end of the pawl 10, rotate the pawl 10 counterclockwise, make it disengage from the ratchet gear 9, the vortex spring 7 is restored to its original shape, which drives the shaft rod 8 to rotate counterclockwise, and the charging line 4 that was pulled out before is wound. After the charging line 4 is wound, release the pawl 10, the metal spring 11 assists the pawl 10 to reset, and the pawl 10 is engaged with the ratchet gear 9 again, locking the rotation of the shaft rod 8, finally rotate the prong 2 counterclockwise to 90 degrees, and turn it into the square cavity in the front of the charging head 1; When you need to take out the charging head 1, the user directly rotates the cover plate 15 backward to open the rear part of the protective shell 3, the clamping rod 151 is disengaged from the clamping hole 152, and the charging head 1 is taken out for cleaning. After cleaning, put the charging head 1 back into the protective shell 3, rotate the cover plate 15 forward to close the rear part of the protective shell 3, the clamping rod 151 is re-engaged with the clamping hole 152, and the charging head 1 is safely limited in the protective shell 3.

[0035] It is worth noting that before the prong 2 is inserted into the socket without using the power adapter, the user can at any time turn the prong 2 into the square cavity of the charging head 1, ensuring that the prong 2 is not exposed when the power adapter is carried or stored, reducing the risk of damage to the prong 2 due to external impact or friction.

[0036] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A drop-proof power adapter, comprising a charging head (1), pins (2), a charging cable (4), a reel (5), a limiting post (6), a bearing (61), a spiral spring (7), a shaft (8), a ratchet (9), a pawl (10), a metal spring (11), and a partition (12). Two pins (2) are distributed vertically and rotatably connected to the front of the charging head (1). The front of the charging head (1) is provided with two square cavities. The limiting post (6) is fixed to the top edge of the reel (5). The bearing (61) is fixed to the inside of the reel (5). The shaft (8) is rotatably connected to the center point inside the reel (5) and passes through the bearing (61) and is rotatably connected to it. Most of the charging cable (4) is wound around the outside of the shaft (8). One end of the cable passes through the front of the reel (5) and is inserted into the rear of the charging head (1). The other end passes through the reel. The coil (5) extends out from the rear. A spiral spring (7) is placed between the take-up coil (5) and the shaft seat (61). Its two ends are fixedly connected to the limiting post (6) and the shaft (8) respectively. The shaft seat (61) is located below the spiral spring (7). A ratchet gear (9) is rotatably connected to the outside of the shaft (8) and located inside the shaft seat (61). A pawl (10) is rotatably connected to the shaft seat (61). One end of the pawl is engaged with the ratchet gear (9), and the other end is in sliding contact with the take-up coil (5). A metal spring (11) is installed on the shaft seat (61) and fixedly connected to one end of the pawl (10). A partition plate (12) of the coil structure is fixedly connected to the bottom of the take-up coil (5). The charging cable (4) is located inside the take-up coil (5) and is arranged in coils in the guide groove of the partition plate (12). The partition plate (12) has a slot for accommodating the charging cable (4) to pass through. It also includes a protective component for protecting the charging head (1), which is disposed on the outside of the charging head (1).

2. The drop-proof power adapter according to claim 1, characterized in that, The protective assembly includes a protective shell (3), a cover plate (15), and a locking rod (151). The protective shell (3) is fitted over the outside of the charging head (1), completely covering the four sides of the charging head (1). The front and rear sides of the protective shell (3) are vertically aligned with the front and rear sides of the charging head (1). The front of the protective shell (3) is provided with multiple blocks. The two cover plates (15) are symmetrical and rotatably connected to the rear of the protective shell (3). The two locking rods (151) are symmetrically distributed and fixed to the rear of the cover plate (15). Two locking holes (152) that are compatible with the two locking rods (151) are opened at the rear of the protective shell (3).

3. A drop-proof power adapter according to claim 2, characterized in that, It also includes a first shell (13), a plug rod (131), and a second shell (14). The first shell (13) and the second shell (14) are distributed vertically and in contact with each other. Multiple plug rods (131) are distributed horizontally and fixed to the top of the first shell (13). Multiple sockets (141) are distributed horizontally and opened at the bottom of the second shell (14). The number of plug rods (131) and sockets (141) are the same and they are snapped together one by one, so that the first shell (13) is connected to the second shell (14) to form a complete cable sleeve. There are two cable sleeves of this structure, one of which is fitted on one end of the charging cable (4) and the other is fitted on the other end of the charging cable (4).

4. A drop-proof power adapter according to claim 3, characterized in that, It also includes reinforcing ribs (101), with two reinforcing ribs (101) symmetrically connected to the front of the charging head (1).

5. A drop-proof power adapter according to claim 4, characterized in that, It also includes sleeves (16), each sleeve (16) being fitted over each pin (2), and the sleeves (16) are made of insulating material.

6. A drop-proof power adapter according to claim 5, characterized in that, The protective shell (3) has lightning-shaped heat dissipation grooves at both the top and bottom.

7. A drop-proof power adapter according to claim 6, characterized in that, The protective shell (3) is made of high-strength, wear-resistant and elastic material, and its four corners are designed to be rounded.

8. A drop-proof power adapter according to claim 7, characterized in that, A wiping sleeve is provided on the threading hole at the rear of the take-up reel (5).

9. A drop-proof power adapter according to claim 8, characterized in that, The upper end of the shaft (8) is provided with a guide block for guiding the charging cable (4).

10. A drop-proof power adapter according to claim 9, characterized in that, Both the insert rod (131) and the latch rod (151) are made of rubber or silicone.

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