Waterproof power adapter

Abstract

The utility model relates to the technical field of power adapters, and discloses a waterproof power adapter which comprises a lower shell and an upper shell, the lower shell is fixedly provided with a pressing and folding sealing mechanism, the upper shell is fixedly provided with a waterproof strip, the pressing and folding sealing mechanism comprises a connecting piece, a hinge plate, a hinge and a concave pressing plate, the connecting piece is fixedly connected with the side face of the upper portion of the lower shell, and the hinge plate is fixedly connected with the lower shell. The lower shell is provided with a concave pressing plate, the concave pressing plate is fixedly provided with a hinged plate, the hinged plate is hinged to a hinge, the hinge is fixedly connected with a connecting piece, the waterproof strip extrudes the position of an arc-shaped groove of the concave pressing plate when moving downwards, and the hinged plate is fixedly provided with a rubber sealing sleeve; after a sealing interface is formed through the concave pressing plate, the rubber sealing sleeves on the hinge plates are centripetally gathered so that the rubber sealing sleeves can be tightly attached to the side walls of the waterproof strips to complete a second-layer sealing interface and a third-layer sealing interface, and the sealing effect can be achieved by completing the plugging and unplugging process without the action of large damping or friction force.

Description

Technical Field

[0001] This utility model relates to the field of power adapter technology, and in particular to a waterproof power adapter. Background Technology

[0002] With the widespread use of electronic devices, power adapters, as essential accessories, are increasingly used in diverse scenarios. In outdoor, humid environments, or special industrial settings, traditional power adapters lack sufficient waterproofing, making them prone to short circuits, damage, and even safety hazards due to water ingress. Therefore, there is an urgent need for a power adapter with superior waterproofing performance.

[0003] A waterproof power adapter is disclosed in Chinese utility model patent CN216217932U, comprising a lower housing, an upper housing on top of the lower housing, and the upper housing engaging with the lower housing. A protruding plate is fixedly installed on the top outer wall of the lower housing, and a rectangular groove is formed on the top inner wall of the upper housing, through which a sealing gasket is installed. A snap-fit ​​groove is formed on the top outer wall of the lower housing, and a fixing plate is fixedly installed on the top inner wall of the upper housing. A locking rod is hinged to one side wall of the fixing plate, and a first spring is installed on one side wall of the fixing plate. One end of the first spring is connected to the locking rod, which engages with the snap-fit ​​groove. A connection port is installed on one side outer wall of the lower housing. Through the protruding plate, rectangular groove, sealing gasket, snap-fit ​​groove, and locking rod, after the locking rod engages with the snap-fit ​​groove, the protruding plate is located inside the rectangular groove. The sealing gasket seals between the protruding plate and the rectangular groove. The height of the protruding plate is higher than that of the lower housing, thereby achieving a waterproof effect.

[0004] Regarding the aforementioned technologies, the inventors believe that the high frictional resistance during disassembly of the sealed parts makes it difficult to disassemble the power adapter. Since power adapters with different configurations are used in industrial applications, the high frictional resistance of the snap-fit ​​and sealed parts after sealing, even with good sealing, makes it difficult for staff to modify the internal parts and perform routine maintenance. The sealing performance of the various connection ports of the power adapter in this utility patent is poor, and it fails to demonstrate a high level of waterproofing. Utility Model Content

[0005] To address the shortcomings of existing waterproof power adapters, this invention provides a waterproof power adapter to solve the problem of insufficient waterproof performance in existing power adapters and improve their safety and reliability in humid or special environments.

[0006] This utility model provides the following technical solution:

[0007] A waterproof power adapter includes a lower housing and an upper housing. A pressure-folding sealing mechanism is fixedly installed on the upper part of the lower housing, and a waterproof strip is fixedly installed on the lower part of the upper housing. The pressure-folding sealing mechanism includes a connecting piece, a hinge plate, a hinge, and a concave pressure plate. The lower part of the connecting piece is fixedly connected to the side of the upper part of the lower housing. A concave pressure plate is located at the top of the lower housing. A hinge plate is fixedly installed at one end of the concave pressure plate. The lower end of the hinge plate is hinged to the hinge, and the lower part of the hinge is fixedly connected to the connecting piece. When the waterproof strip moves downwards, it presses against the arc-shaped groove of the concave pressure plate. A rubber sealing sleeve is fixedly installed on the top of the hinge plate.

[0008] Preferably, a first sleeve is fixedly provided on both sides of the lower housing, and a slot is provided on the inner wall of the first sleeve; a second sleeve is fixedly provided on both sides of the upper housing.

[0009] Preferably, a rectangular groove is fixedly provided on the top of the lower housing, and a sealing plate is fixedly installed on the lower part of the upper housing. The sealing plate is sealed by being inserted into the inner wall of the rectangular groove.

[0010] Preferably, a line limiter is provided on the top of the upper housing. The line limiter includes a base plate, a sliding column, a pull table, and a V-shaped frame. The lower part of the base plate is fixedly connected to the upper housing. A sliding column is fixedly provided on the upper part of the base plate. A pull table is slidably connected to the outer wall of the sliding column. A V-shaped frame is fixedly installed on one side of both the pull table and the base plate. A spring is fixedly provided on the top of the sliding column. The lower part of the spring is in close contact with the surface of the pull table.

[0011] Preferably, a snap-fit ​​connector is fixedly provided on the lower part of the upper housing, one side of the snap-fit ​​connector is fixedly connected to the waterproof strip, and the other side of the snap-fit ​​connector is fixedly connected to the sealing plate.

[0012] Preferably, a positioner is fixedly provided on the inner wall of the lower housing. The positioner includes a positioning cylinder, an expansion tube, and a through rod. The expansion tube can be inserted into the inner wall of the positioning cylinder. The lower part of the expansion tube is conical in shape, and the inner diameter of the expansion tube is larger than the inner diameter of the through rod.

[0013] Preferably, an electric rod is fixedly installed on the top of the inner wall of the upper housing, and the output end of the electric rod is fixedly connected to the pull table.

[0014] Preferably, both the lower and upper housings have annular grooves on their outer walls. The annular grooves have the same shape as the outer diameter of the power cord, and the maximum diameter of the annular grooves is smaller than the outer diameter of the power cord.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In this utility model, when the shells are snapped together, the waterproof strip is pressed down, which will cause the hinge plate connected to the concave pressure plate to move inward, so that the waterproof strip is pressed at the concave pressure plate position, and the rubber sealing sleeve is tightly attached to the side wall of the waterproof strip to complete the three-layer sealing interface, so that the main connection gaps of the power adapter have good sealing performance.

[0017] 2. In this utility model, by setting a line limiter and an annular groove, when the power cord does not need more length to connect to the socket, it can be wound in the annular groove and then clamped and limited by the line limiter. The stretching table allows the line limiter to temporarily stop clamping the power cord, providing a longer length for installation conditions for long-distance power connection between the plug and the socket. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the rubber sealing sleeve of this utility model;

[0020] Figure 3 This is a partial schematic diagram of the waterproof strip structure of this utility model;

[0021] Figure 4 This is a disassembled schematic diagram of the positioning cylinder connection part of this utility model;

[0022] Figure 5 This is a plan view of the circuit limiter of this utility model.

[0023] In the diagram: 1. Lower housing; 2. Upper housing; 3. Press-fit sealing mechanism; 301. Connecting piece; 302. Hinge plate; 303. Hinge; 304. Concave pressure plate; 4. Waterproof strip; 5. Rubber sealing sleeve; 6. First sleeve; 7. Slot; 8. Second sleeve; 9. Rectangular groove; 10. Sealing plate; 11. Line limiter; 111. Base plate; 112. Sliding column; 113. Pulling table; 114. V-shaped frame; 115. Spring; 12. Clip connector; 13. Positioner; 131. Positioning cylinder; 132. Expansion tube; 133. Through rod; 14. Annular groove; 15. Electric rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1, Figure 2 , Figure 3 and Figure 4 As shown, a waterproof power adapter includes a lower housing 1 and an upper housing 2. A pressure-sealing mechanism 3 is fixedly installed on the upper part of the lower housing 1, and a waterproof strip 4 is fixedly installed on the lower part of the upper housing 2. The pressure-sealing mechanism 3 includes a connecting piece 301, a hinge plate 302, a hinge 303, and a concave pressure plate 304. The lower part of the connecting piece 301 is fixedly connected to the side of the upper part of the lower housing 1. A concave pressure plate 304 is provided at the top of the lower housing 1. A hinge plate 302 is fixedly installed at one end of the concave pressure plate 304. The lower end of the hinge plate 302 is hinged to the hinge 303. The lower part of the hinge 303 is fixedly connected to the connecting piece 301. The waterproof strip 4... When the waterproof strip 4 moves downward, it is pressed against the arc-shaped groove of the concave pressure plate 304. When the waterproof strip 4 is pressed downward, it will drive the hinge plate 302 connected to the concave pressure plate 304 to gather inward. A rubber sealing sleeve 5 is fixedly installed on the top of the hinge plate 302. After the sealing interface is formed by the concave pressure plate 304, the rubber sealing sleeve 5 on the hinge plate 302 gathers inward and tightly adheres to the side wall of the waterproof strip 4 to complete the second and third layer sealing interface. This achieves the sealing effect of a large shell part with effective multi-layer sealing in structure without being subjected to large damping or frictional force during the insertion and removal process.

[0026] Furthermore, a first sleeve 6 is fixedly installed on both sides of the lower housing 1, and a slot 7 is opened on the inner wall of the first sleeve 6. A second sleeve 8 is fixedly installed on both sides of the upper housing 2. A rectangular groove 9 is fixedly installed on the top of the lower housing 1, and a sealing plate 10 is fixedly installed on the lower part of the upper housing 2. The sealing plate 10 is sealed by inserting into the inner wall of the rectangular groove 9. The waterproof strip 4 and the sides of the second sleeve 8 are coated with oxygen resin, and the end face is made of silicone rubber material, which can prevent water seepage while blocking water from penetrating the gaps. By using slots to seal other smaller connection parts, the problem of water seepage in small corner gaps is solved.

[0027] A snap-fit ​​connector 12 is fixedly installed at the lower part of the upper housing 2. One side of the snap-fit ​​connector 12 is fixedly connected to the waterproof strip 4, and the other side of the snap-fit ​​connector 12 is fixedly connected to the sealing plate 10. The snap-fit ​​connector 12 seals the corners between the lower housing 1 and the upper housing 2 during insertion, achieving a complete and comprehensive seal between the lower housing 1 and the upper housing 2. A positioner 13 is fixedly installed on the inner wall of the lower housing 1. The positioner 13 includes a positioning cylinder 131, an expansion tube 132, and a through rod 133. The expansion tube 132 can be inserted into the inner wall of the positioning cylinder 131. The lower part of the expansion tube 132 is conical, and the inner diameter of the expansion tube 132 is larger than the inner diameter of the through rod 133. After the expansion tube 132 is inserted into the positioning cylinder 131, the positioning cylinder 131 deforms outward, resulting in a large... The positive pressure, coupled with the small cone angle of the expansion tube 132 forming a frictional self-locking with the inner wall of the positioning cylinder 131, achieves a good fixing effect. The frictional force generated by the expansion due to the wedge-shaped slope of the conical part of the expansion tube 132, and its inclined surface also facilitate the short-stroke downward displacement of the upper shell 2, ensuring a tight connection between the shells. An electric rod 15 is fixedly installed on the top of the inner wall of the upper shell 2. The electric rod 15 adopts the Nanjing Yongnuo ynt-01 DC micro electric push rod, and the output end of the electric rod 15 is fixedly connected to the pull table 113. The electric rod 15 is controlled by an external button or wireless signal to select whether to insert or remove the electric rod 15 to achieve the effect of sealing and tight connection of the shells after the snap-fit.

[0028] Please see Figure 1 and Figure 5 As shown, a line limiter 11 is provided on the top of the upper housing 2. The line limiter 11 includes a base plate 111, a sliding column 112, a pull table 113, and a V-shaped frame 114. The lower part of the base plate 111 is fixedly connected to the upper housing 2, and the sliding column 112 is fixedly provided on the upper part of the base plate 111. The pull table 113 is slidably connected to the outer wall of the sliding column 112. The V-shaped frame 114 is fixedly installed on one side of both the pull table 113 and the base plate 111. A spring 115 is fixedly provided on the top of the sliding column 112, and the lower part of the spring 115 is in close contact with the surface of the pull table 113. By pulling the pull table 113, the pressure-bending sealing mechanism 3 no longer clamps the power cord passing through the V-shaped frame 114. When the pull table 113 is not pulled, the V-shaped frame 114 of the pull table 113 closes downward to clamp the power cord. This achieves the effect of storing the extended part when the power cord is long, avoiding the effect of the cord swinging downward or getting tangled with other parts due to excessive length, which would cause a messy placement.

[0029] Furthermore, both the lower housing 1 and the upper housing 2 have annular grooves 14 on their outer walls. The annular grooves 14 have the same shape as the outer diameter of the power cord, and the maximum diameter of the annular grooves 14 is smaller than the outer diameter of the power cord.

[0030] Working principle:

[0031] When installing the power adapter, the lower housing 1 is close to the upper housing 2. Because of the rubber sealing sleeve 5, there are four accurate points for snapping and tight connection. During the snapping process, after the concave pressure plate 304 forms a sealing interface, the rubber sealing sleeve 5 on the hinge plate 302 gathers towards the center, so that the rubber sealing sleeve 5 is tightly attached to the side wall of the waterproof strip 4 to complete the second and third layer of sealing interface. This completes the sealing effect of the main gap between the lower housing 1 and the upper housing 2 after tight connection.

[0032] When the power adapter is disassembled, the electric rod 15 retracts and pulls back the through rod 133. The expansion tube 132 no longer expands its outer diameter, so that the outer diameter of the expansion tube 132 is reduced and no longer has the friction generated by expansion. This makes the shells no longer tightly connected and facilitates opening the shells.

[0033] The power cord of the plug part of the power adapter is relatively long and can be wound around the annular groove 14. After the protruding part passes through the line limiter 11, it is clamped and fixed in position. When it is necessary to extend the length of the power cord, the pull table 113 makes the line limiter 11 temporarily stop clamping the power cord, allowing the wound part to be freed and extended.

Claims

1. A waterproof power adapter, comprising a lower housing (1) and an upper housing (2), characterized in that: The upper part of the lower housing (1) is fixedly provided with a pressure-folding sealing mechanism (3), and the lower part of the upper housing (2) is fixedly provided with a waterproof strip (4). The pressure-folding sealing mechanism (3) includes a connecting piece (301), a hinge plate (302), a hinge (303), and a concave pressure plate (304). The lower part of the connecting piece (301) is fixedly connected to the side of the upper part of the lower housing (1). The concave pressure plate (304) is provided at the top of the lower housing (1). The hinge plate (302) is fixedly provided at one end of the concave pressure plate (304). The lower end of the hinge plate (302) is hinged to the hinge (303). The lower part of the hinge (303) is fixedly connected to the connecting piece (301). When the waterproof strip (4) moves downward, it is pressed against the arc-shaped groove of the concave pressure plate (304). The top of the hinge plate (302) is fixedly provided with a rubber sealing sleeve (5).

2. A waterproof power adapter according to claim 1, characterized in that: The lower housing (1) is fixedly provided with a first sleeve (6) on both sides, and the inner wall of the first sleeve (6) is provided with a slot (7). The upper housing (2) is fixedly provided with a second sleeve (8) on both sides.

3. A waterproof power adapter according to claim 1, characterized in that: A rectangular groove (9) is fixedly provided on the top of the lower housing (1), and a sealing plate (10) is fixedly installed on the lower part of the upper housing (2). The sealing plate (10) is sealed by inserting into the inner wall of the rectangular groove (9).

4. A waterproof power adapter according to claim 1, characterized in that: A line limiter (11) is provided on the top of the upper housing (2). The line limiter (11) includes a base plate (111), a sliding column (112), a pull table (113), and a V-shaped frame (114). The lower part of the base plate (111) is fixedly connected to the upper housing (2). The upper part of the base plate (111) is fixedly provided with a sliding column (112). The outer wall of the sliding column (112) is slidably connected with a pull table (113). A V-shaped frame (114) is fixedly installed on one side of both the pull table (113) and the base plate (111). A spring (115) is fixedly provided on the top of the sliding column (112). The lower part of the spring (115) is in close contact with the surface of the pull table (113).

5. A waterproof power adapter according to claim 3, characterized in that: A snap-fit ​​connector (12) is fixedly provided on the lower part of the upper housing (2). One side of the snap-fit ​​connector (12) is fixedly connected to the waterproof strip (4), and the other side of the snap-fit ​​connector (12) is fixedly connected to the sealing plate (10).

6. A waterproof power adapter according to claim 1, characterized in that: The lower housing (1) is fixedly provided with a locator (13) on its inner wall. The locator (13) includes a positioning cylinder (131), an expansion tube (132), and a through rod (133). The expansion tube (132) can be inserted into the inner wall of the positioning cylinder (131). The lower part of the expansion tube (132) is conical in shape, and the inner diameter of the expansion tube (132) is larger than the inner diameter of the through rod (133).

7. A waterproof power adapter according to claim 4, characterized in that: An electric rod (15) is fixedly installed on the top of the inner wall of the upper housing (2), and the output end of the electric rod (15) is fixedly connected to the pull table (113).

8. A waterproof power adapter according to claim 1, characterized in that: The outer walls of both the lower housing (1) and the upper housing (2) are provided with annular grooves (14), the annular grooves (14) have the same shape as the outer diameter of the power line, and the maximum diameter of the annular grooves (14) is smaller than the outer diameter of the power line.

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