A water-proof power adapter
By incorporating an airbag sealing device into the power adapter, the deformation of the airbag achieves a seal between the plug and the power adapter body, solving the problem of water ingress caused by gaps at the plug and socket connection, and ensuring the normal operation and use of the power adapter.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANCHENG PENGBO ELECTRIC CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-02
AI Technical Summary
Power adapters are prone to wear and tear at the plug and socket connection points, which can create gaps that allow water to enter the adapter, causing short circuits and affecting normal use.
An airbag sealing device is adopted, which uses the deformation of the airbag to seal the connection between the plug and the power adapter body. By setting the airbag, the airbag is squeezed to make it completely contact the plug, thus achieving a sealing effect.
It effectively prevents water from entering through the gap between the plug and the power adapter, ensuring the normal use of the power adapter, simplifying the operation process and improving the sealing performance.
Smart Images
Figure CN224318804U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power adapter technology, and in particular to a water-proof power adapter. Background Technology
[0002] A power adapter is a power conversion device for small portable electronic devices and appliances. It can convert AC input to DC output and is widely used in security cameras, set-top boxes, routers, light strips, massagers and other devices.
[0003] Power adapters typically have two wires. One is directly mounted on the adapter housing for connecting to electrical devices, while the other is detachably mounted on the adapter via a plug for connecting to the power source. However, the connection between the plug and the adapter relies mainly on friction between them. Repeated plugging and unplugging can easily cause wear at the connection point, creating gaps. If the power adapter gets wet, water can easily seep into the adapter through these gaps, potentially causing short circuits and affecting its normal operation. Utility Model Content
[0004] This invention addresses the problem that if a power adapter gets wet, water can easily seep into the adapter through the gap between the plug and the adapter, causing short circuits and affecting its normal operation. The invention provides a water-proof power adapter.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a water-proof power adapter, comprising a power adapter body, a first wire fixedly installed at one end of the power adapter body, a plug inserted into the inner wall of the other end of the power adapter body, a second wire fixedly installed at one end of the plug, and a sealing device provided between the plug and the power adapter body. The sealing device uses an air bladder to seal the connection between the plug and the power adapter body by means of the deformation of the air bladder.
[0006] The effect achieved by the above components is as follows: by setting up an airbag and squeezing the airbag, the airbag deforms until the outer surface of the airbag and the plug are completely in contact. The airbag can seal the outside of the connection between the plug and the power adapter body, which helps to prevent water from entering the interior of the power adapter body from the gap between the plug and the power adapter body, thus facilitating the normal use of the power adapter.
[0007] Preferably, the sealing device includes a sleeve and an air bladder. Both the air bladder and the sleeve are fixedly installed at one end of the power adapter body. The air bladder is disposed inside the sleeve, and the plug is disposed inside the air bladder. A pressure plate is installed on one side of the air bladder, and first extension blocks are fixedly installed on both sides of the pressure plate. The first extension blocks are slidably installed on the inner wall of the sleeve. Limiting blocks are symmetrically installed on the inner walls of both sides of the sleeve. A spring is fixedly installed on the side of the two limiting blocks that are far apart from each other. One end of the spring is fixedly installed on one side of the inner wall of the sleeve.
[0008] The effect achieved by the above components is as follows: pushing the two limiting blocks away from each other causes the limiting blocks to compress the spring, causing the spring to deform until the two limiting blocks reach the appropriate position. Then, pushing the pressure plate downward causes the pressure plate to compress the airbag, causing the airbag to deform. The outer surface of the deformed airbag gradually comes into contact with the plug until the top of the first extension plate exceeds the bottom of the two limiting blocks. At this point, the airbag and the plug are fully in contact. Removing the external force on the limiting blocks causes the spring to return to its original position. Thus, the two limiting blocks can limit the pressure plate connected to the first extension block, and the pressure plate can limit the airbag. Therefore, the airbag can seal the exterior of the plug and the power adapter body.
[0009] Preferably, the vertical cross-section of the limiting block is an isosceles trapezoid.
[0010] The effect achieved by the above components is as follows: by setting an isosceles trapezoidal limiting block, when the pressure plate is pushed down, the bottom of the first extension block will gradually abut against the hypotenuse of the limiting block and apply a horizontal component force to the limiting block, so that the two limiting blocks can move away from each other. The limiting block will compress the spring, causing the spring to deform until the first extension block disengages from the two limiting blocks. The spring will then reset and drive the limiting block back to its initial position. There is no need to directly adjust the limiting block, which simplifies the operation steps.
[0011] Preferably, the spring has a guide rod inside, one end of which is fixedly installed on one side of the limiting block, and the outer surface of the guide rod is slidably installed on the inner wall of the sleeve.
[0012] The effect achieved by the above components is that, by setting the guide rod, the guide rod can limit and guide the spring.
[0013] Preferably, the inner side of the airbag is provided with a plurality of protrusions evenly distributed.
[0014] The effect achieved by the above-mentioned components is that by setting the protrusion, the friction between the airbag and the plug contact surface can be increased, making the connection between the airbag and the plug less likely to loosen, and further improving the sealing performance between the airbag and the plug and the power adapter body.
[0015] Preferably, a rubber strip is fixedly installed on one side of the inner wall of the airbag, and one side of the rubber strip abuts against the other side of the inner wall of the airbag.
[0016] The effect achieved by the above components is as follows: by setting the rubber sleeve, when the pressure plate squeezes the airbag, it will also squeeze the rubber strip, causing the rubber strip to deform. When it is necessary to disassemble the plug, push the two limit blocks to make the two limit blocks move away from each other, and then push the first extension plate and push plate upward. The rubber strip will lose its compression and reset, and assist the airbag in resetting, making it easy to quickly release the airbag from sealing and fixing the plug.
[0017] Preferably, a second extension block is fixedly installed on both sides of the sleeve, and a magnet is provided inside both the first extension block and the second extension block, and the first extension block and the second extension block are magnetically attracted to each other.
[0018] The effect achieved by the above components is as follows: pushing the pressure plate upward causes the first extension block and the second extension block to come into contact, thereby attracting each other and fixing the pressure plate, which in turn facilitates the disassembly and installation of the plug.
[0019] Preferably, the same round rod is fixedly installed on one side of the second extension block and one side of the power adapter body, and the second extension block is slidably installed on the outer surface of the round rod.
[0020] The effect achieved by the above components is that by setting the round rod, the round rod can limit the second extension block, which helps to make the pressure plate more stable during the movement.
[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0022] In this invention, an airbag is incorporated, and its deformation seals the connection between the plug and the power adapter body. By compressing the airbag, it deforms until its outer surface completely contacts the plug, thus sealing the connection between the plug and the power adapter body. This helps prevent water from entering the power adapter body through gaps between the plug and the power adapter body, facilitating the normal use of the power adapter. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of the main body of this utility model;
[0024] Figure 2 This is a three-dimensional structural diagram of the sealing device of this utility model;
[0025] Figure 3 This utility model Figure 2A magnified structural diagram at point A;
[0026] Figure 4 This is a cross-sectional view of the airbag of this utility model;
[0027] Figure 5 This utility model Figure 4 A magnified structural diagram at point B.
[0028] Legend: 1. Power adapter body; 2. First cable; 3. Second cable; 4. Plug; 5. Sealing device; 51. Sleeve; 52. Airbag; 53. Pressure plate; 54. First extension block; 55. Limiting block; 56. Spring; 57. Guide rod; 58. Round rod; 59. Protrusion; 510. Rubber strip; 511. Second extension block. Detailed Implementation
[0029] Example 1, referring to Figures 1-5 As shown, this embodiment discloses a water-proof power adapter, including a power adapter body 1. A first wire 2 is fixedly installed at one end of the power adapter body 1, and a plug 4 is inserted into the inner wall of the other end of the power adapter body 1. A second wire 3 is fixedly installed at one end of the plug 4. A sealing device 5 is provided between the plug 4 and the power adapter body 1. The sealing device 5 is provided with an airbag 52. The airbag 52 is deformed to seal the connection between the plug 4 and the power adapter body 1. By providing the airbag 52, squeezing the airbag 52 causes it to deform until the outer surface of the airbag 52 completely abuts against the plug 4. Thus, the airbag 52 can seal the outside of the connection between the plug 4 and the power adapter body 1, which helps prevent water from entering the interior of the power adapter body 1 from the gap between the plug 4 and the power adapter body 1, facilitating the normal use of the power adapter.
[0030] Reference Figures 2-5As shown, the sealing device 5 includes a sleeve 51 and an airbag 52. Both the airbag 52 and the sleeve 51 are fixedly installed at one end of the power adapter body 1. The airbag 52 is located inside the sleeve 51, and the plug 4 is located inside the airbag 52. A pressure plate 53 is installed on one side of the airbag 52, and first extension blocks 54 are fixedly installed on both sides of the pressure plate 53. The first extension blocks 54 are slidably installed on the inner wall of the sleeve 51. Limiting blocks 55 are symmetrically installed on the inner walls of both sides of the sleeve 51. The two limiting blocks 55 are located on opposite sides. Springs 56 are fixedly installed on both sides of the sleeve 51. One end of the spring 56 is fixedly installed on one side of the inner wall of the sleeve 51. Pushing the two limiting blocks 55 causes them to move away from each other. The limiting blocks 55 will compress the spring 56, causing it to deform. This continues until the two limiting blocks 55 reach the appropriate position. Then, the pressure plate 53 is pushed down, which compresses the airbag 52, causing it to deform. The outer surface of the deformed airbag 52 will gradually come into contact with the plug 4 until the first extension plate... When the top of the airbag 52 exceeds the bottom of the two limiting blocks 55, the airbag 52 and the plug 4 are fully in contact. Removing the external force on the limiting blocks 55 causes the spring 56 to reset. The two limiting blocks 55 then limit the pressure plate 53 connected to the first extension block 54, and the pressure plate 53 limits the airbag 52. Thus, the airbag 52 can seal the plug 4 and the exterior of the power adapter body 1. The vertical cross-section of the limiting block 55 is an isosceles trapezoid. By setting the isosceles trapezoidal limiting block 55, when downward... When the pressure plate 53 is pushed, the bottom of the first extension block 54 gradually comes into contact with the inclined edge of the limiting block 55 and applies a horizontal component force to the limiting block 55, so that the two limiting blocks 55 can move away from each other. The limiting block 55 will squeeze the spring 56, causing the spring 56 to deform until the first extension block 54 disengages from the two limiting blocks 55. The spring 56 will reset and drive the limiting block 55 back to its initial position. There is no need to directly adjust the limiting block 55, which simplifies the operation steps.
[0031] Reference Figures 2-5 As shown, a guide rod 57 is provided inside the spring 56. One end of the guide rod 57 is fixedly installed on one side of the limiting block 55, and the outer surface of the guide rod 57 is slidably installed on the inner wall of the sleeve 51. By providing the guide rod 57, the guide rod 57 can limit and guide the spring 56. Several protrusions 59 are evenly provided on the inner side of the airbag 52. By providing the protrusions 59, the friction between the contact surface of the airbag 52 and the plug 4 can be increased, making it less likely for the connection between the airbag 52 and the plug 4 to loosen, and further improving the sealing performance of the airbag 52 between the plug 4 and the power adapter body 1.
[0032] Reference Figures 2-5As shown, a rubber strip 510 is fixedly installed on one side of the inner wall of the airbag 52. One side of the rubber strip 510 abuts against the other side of the inner wall of the airbag 52. By setting a rubber sleeve, when the pressure plate 53 squeezes the airbag 52, it will also squeeze the rubber strip 510, causing the rubber strip 510 to deform. When it is necessary to disassemble the plug 4, push the two limiting blocks 55 to make the two limiting blocks 55 move away from each other. Then push the first extension plate and the push plate upward, and the rubber strip 510 will lose its compression and reset, which will assist the airbag 52 in resetting, making it easy to quickly release the airbag 52 from the seal and fixation of the plug 4.
[0033] Reference Figures 2-5 As shown, a second extension block 511 is fixedly installed on both sides of the sleeve 51. Magnets are provided inside the first extension block 54 and the second extension block 511. The first extension block 54 and the second extension block 511 are magnetically attracted to each other. When the pressure plate 53 is pushed upward, the first extension block 54 and the second extension block 511 abut against each other, and the first extension block 54 and the second extension block 511 can attract each other, thereby fixing the pressure plate 53 and further facilitating the disassembly and installation of the plug 4. The same round rod 58 is fixedly installed on one side of the second extension block 511 and one side of the power adapter body 1. The second extension block 511 is slidably installed on the outer surface of the round rod 58. By setting the round rod 58, the round rod 58 can limit the second extension block 511, which helps to make the pressure plate 53 more stable during movement.
[0034] Working principle: After plug 4 is inserted into the socket of power adapter body 1, push down the pressure plate 53. The pressure plate 53 will compress the airbag 52 and the rubber strip 510 inside the airbag 52, causing both the airbag 52 and the rubber strip 510 to deform until the side of the airbag 52 with the protrusion 59 is completely in contact with the outer surface of the plug 4. At the same time, the bottom of the first extension block 54 connected to the pressure plate 53 will gradually come into contact with the inclined side of the limiting block 55, and apply a horizontal component force to the limiting block 55, so that the two limiting blocks 55 can move away from each other. The limiting block 55 will compress the spring 56, causing the spring 56 to deform until the first extension block 54 disengages from the two limiting blocks 55. At this time, the spring 56 will... The pressure plate 53 is fixed and the limiting block 55 is driven back to its initial position. The pressure plate 53 can then limit the airbag 52, and the airbag 52 can seal the outside of the plug 4 and the power adapter body 1. When it is necessary to remove the plug 4, push the two limiting blocks 55 so that the two limiting blocks 55 move away from each other. Then push the first extension plate and the push plate upward until the first extension block 54 and the second extension block 511 abut. The first extension block 54 and the second extension block 511 can attract each other, thereby fixing the pressure plate 53. The airbag 52 and the rubber strip 510 lose their compression and will reset, so that one side of the airbag 52 moves away from the plug 4, thus facilitating the removal and installation of the plug 4.
Claims
1. A water-proof power adapter, comprising a power adapter body (1), characterized in that: One end of the power adapter body (1) is fixedly installed with a first wire (2), and the inner wall of the other end of the power adapter body (1) is inserted with a plug (4). One end of the plug (4) is fixedly installed with a second wire (3). A sealing device (5) is provided between the plug (4) and the power adapter body (1). The sealing device (5) seals the connection between the plug (4) and the power adapter body (1) by setting an airbag (52) and utilizing the deformation of the airbag (52).
2. A water-proof power adapter according to claim 1, characterized in that: The sealing device (5) includes a sleeve (51) and an airbag (52). The airbag (52) and the sleeve (51) are both fixedly installed at one end of the power adapter body (1). The airbag (52) is located inside the sleeve (51). The plug (4) is located inside the airbag (52). A pressure plate (53) is installed on one side of the airbag (52). A first extension block (54) is fixedly installed on both sides of the pressure plate (53). The first extension block (54) is slidably installed on the inner wall of the sleeve (51). Limiting blocks (55) are symmetrically installed on the inner walls on both sides of the sleeve (51). A spring (56) is fixedly installed on the side of the two limiting blocks (55) that are far apart. One end of the spring (56) is fixedly installed on one side of the inner wall of the sleeve (51).
3. A water-proof power adapter according to claim 2, characterized in that: The vertical cross-section of the limiting block (55) is an isosceles trapezoid.
4. A water-proof power adapter according to claim 2, characterized in that: The spring (56) has a guide rod (57) inside. One end of the guide rod (57) is fixedly installed on one side of the limiting block (55), and the outer surface of the guide rod (57) is slidably installed on the inner wall of the sleeve (51).
5. A water-proof power adapter according to claim 2, characterized in that: The inner side of the airbag (52) is uniformly provided with several protrusions (59).
6. A water-proof power adapter according to claim 2, characterized in that: A rubber strip (510) is fixedly installed on one side of the inner wall of the airbag (52), and one side of the rubber strip (510) abuts against the other side of the inner wall of the airbag (52).
7. A water-proof power adapter according to claim 2, characterized in that: The sleeve (51) has a second extension block (511) fixedly installed on both sides. The first extension block (54) and the second extension block (511) are both provided with magnets. The first extension block (54) and the second extension block (511) are magnetically attracted to each other.
8. A water-proof power adapter according to claim 7, characterized in that: The same round rod (58) is fixedly installed on one side of the second extension block (511) and one side of the power adapter body (1), and the second extension block (511) is slidably installed on the outer surface of the round rod (58).