A waterproof splash-proof plug

By combining the design of a sealing airbag and a sealing ring, the short circuit problem of the plug when water splashes is solved, achieving a good waterproof splash effect and reducing the probability of water seeping into the plug pins.

CN224305002UActive Publication Date: 2026-05-29GUANGDONG SHENG YI ELECTRICAL SCI TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG SHENG YI ELECTRICAL SCI TECH CO LTD
Filing Date
2025-07-15
Publication Date
2026-05-29

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Abstract

The utility model discloses a waterproof splash plug, including joint, the electric wire of being connected to the joint and the waterproof assembly of setting in the joint far from the electric wire one end, the joint includes the center piece and sets up bottom piece and top piece respectively in the both ends of center piece, the inside of bottom piece is provided with first straight passage, the crooked way and second straight passage, is provided with the plug pin on the top piece, and the waterproof assembly includes sealed air bag and sets up the sealing ring of sealed air bag one side, and sealed air bag sets up in first straight passage, and sealing ring sets up in second straight passage, is provided with first sealing block in sealed air bag is close to sealing ring one end, is provided with second sealing block in first sealing block far from sealed air bag one end, and second sealing block and sealing ring fixed connection. The waterproof splash plug, have good waterproof splash effect, through sealed air bag and sealing ring cooperation, can also avoid the plug pin position infiltration in the case of meeting water splash.
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Description

Technical Field

[0001] This utility model relates to a plug, specifically a waterproof and splash-proof plug. Background Technology

[0002] A plug is a connector for electrical appliances, typically a male connector (either rod-shaped or plate-shaped) used to insert into a female power socket with a slot or recess to establish an electrical connection. A plug is a connecting device between an electrical appliance and a power source; by inserting it into a socket, an electrical connection is established.

[0003] Existing plugs typically have a simple connector structure. After being inserted into a socket (or power strip), there is no waterproof structure between the connector and the socket. In actual use, if water splashes in the surrounding environment, it may seep in through the gap between the connector and the socket, causing accidents such as short circuits. Utility Model Content

[0004] The purpose of this invention is to provide a waterproof and splash-proof plug with excellent waterproof and splash-proof performance. Through the cooperation of a sealing airbag and a sealing ring, a double sealing effect is achieved. Therefore, even when water splashes, water can be prevented from seeping into the plug pins, effectively reducing the probability of water seeping into the plug pins through the connector and causing a short circuit.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof and splash-proof plug, comprising a connector, an electric wire connected to the connector, and a waterproof component disposed at the end of the connector away from the electric wire. The connector includes a central block and a bottom block and a top block respectively disposed at both ends of the central block. The bottom block has a first straight channel, a bend, and a second straight channel inside. A pin is disposed on the top block. The waterproof component includes a sealing airbag and a sealing ring disposed on one side of the sealing airbag. The sealing airbag is disposed in the first straight channel, and the sealing ring is disposed in the second straight channel, and the sealing ring is in contact with the inner wall of the second straight channel. A first sealing block is disposed at the end of the sealing airbag near the sealing ring, and a second sealing block is disposed at the end of the first sealing block away from the sealing airbag. The second sealing block is fixedly connected to the sealing ring.

[0006] Preferably, the sealing airbag has an internally hollow cavity structure, and the sealing airbag fits against the inner wall of the first straight channel.

[0007] Preferably, the cavity of the sealed airbag is filled with an inert gas, and the air pressure inside the sealed airbag cavity is 1.05 to 1.2 times the standard atmospheric pressure.

[0008] Preferably, one end of the sealing airbag is disposed in the first straight channel, and the other end protrudes from the surface of the central block.

[0009] Preferably, a housing and an inner push rod are provided at one end of the sealing airbag near the sealing ring, the two ends of the housing are fixed to the sealing airbag and the inner push rod respectively, and the first sealing block is fixed to the end of the inner push rod away from the sealing airbag.

[0010] Preferably, two springs are fixed at the end of the housing away from the sealing airbag, and the two springs are respectively installed on two pads.

[0011] Preferably, both the spring and the pad are located in the first straight channel, and both pads are fixed to the center block.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention utilizes a sealing airbag on the central block. When the central block contacts the socket and is compressed, the sealing airbag moves the inner push rod, causing the sealing ring to protrude from the surface of the bottom block. This allows the sealing airbag and the sealing ring to work together, achieving a double sealing effect. Therefore, even in the event of water splashing, water leakage at the pin location can be prevented, effectively reducing the probability of water seeping into the pin location through the connector and causing a short circuit. Attached Figure Description

[0014] Figure 1 This is one of the schematic diagrams of an embodiment of the present utility model;

[0015] Figure 2 This is a second schematic diagram of an embodiment of the present utility model;

[0016] Figure 3 This utility model Figure 2 Sectional view of AA;

[0017] Figure 4 This utility model Figure 3 Enlarged view of B in the middle;

[0018] Figure 5 This utility model Figure 3 Enlarged view of C in the middle;

[0019] Figure 6 This is a schematic diagram of the connector of this utility model being inserted into the socket.

[0020] The reference numerals and names in the figure are as follows: 1. Connector; 11. Bottom block; 111. First straight channel; 112. Bend; 113. Second straight channel; 12. Center block; 13. Top block; 14. Pin; 2. Wire; 3. Waterproof component; 31. Sealing airbag; 32. Housing; 33. Inner push rod; 34. First sealing block; 35. Second sealing block; 36. Sealing ring; 37. Spring; 38. Pad. Detailed Implementation

[0021] 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.

[0022] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0023] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0024] Please see Figure 1 One embodiment of this utility model is a waterproof and splash-proof plug, which includes a connector 1 and a wire 2 connected to the connector 1.

[0025] Please see Figure 2 The splash-proof plug also includes a waterproof component 3 located at the end of the connector 1 away from the wire 2. The connector 1 includes a central block 12 and a bottom block 11 and a top block 13 located at opposite ends of the central block 12. A pin 14 is provided on the top block 13.

[0026] Please see Figures 3 to 6The bottom block 11 has a first straight channel 111, a bend 112, and a second straight channel 113 inside. The waterproof component 3 includes a sealing airbag 31 and a sealing ring 36 disposed on one side of the sealing airbag 31. The sealing airbag 31 is disposed inside the first straight channel 111 and has a hollow cavity structure. The sealing airbag 31 is in contact with the inner wall of the first straight channel 111. The cavity of the sealing airbag 31 is filled with inert gas, and the gas pressure inside the cavity of the sealing airbag 31 is 1.05 to 1.2 times the standard atmospheric pressure. One end of the sealing airbag 31 is disposed inside the first straight channel 111, and the other end protrudes from the surface of the central block 12. The sealing ring 36... The sealing ring 36 is fitted to the inner wall of the second straight channel 113. A first sealing block 34 is provided at the end of the sealing airbag 31 near the sealing ring 36, and a second sealing block 35 is provided at the end of the first sealing block 34 away from the sealing airbag 31. The second sealing block 35 is fixedly connected to the sealing ring 36. A sleeve 32 and an inner push rod 33 are provided at the end of the sealing airbag 31 near the sealing ring 36. The two ends of the sleeve 32 are fixed to the sealing airbag 31 and the inner push rod 33 respectively. The first sealing block 34 is fixed to the end of the inner push rod 33 away from the sealing airbag 31. In this embodiment, both the first sealing block 34 and the second sealing block 35 are made of rubber.

[0027] Please refer to the following: Figure 4 Two springs 37 are fixed at the end of the housing 32 away from the sealing airbag 31. The two springs 37 are respectively installed on two pads 38. The springs 37 and the pads 38 are both set in the first straight channel 111. The two pads 38 are both fixed to the center block 12.

[0028] Please refer to the following: Figures 1 to 6 When this utility model is in use, after pin 14 is inserted into the designated socket (see the schematic diagram after insertion). Figure 6 The top block 13 and pin 14 will be inserted into the designated socket, and the sealing airbag 31 will contact the socket. When the sealing airbag 31 is under pressure, it will contract inwards to 111, which can play a primary sealing role. The two springs 37 are compressed. At this time, the first sealing block 34 will move towards the sealing ring 36, and the pressure in the first straight channel 111, the bend 112 and the second straight channel 113 will increase, thereby pushing the second sealing block 35 and the sealing ring 36 to move, so that the sealing ring 36 extends out from the second straight channel 113 and contacts the socket, thereby using the sealing ring 36 to play a secondary sealing role. When the top block 13 and 14 are removed from the socket, the sealing airbag 31 and the sealing ring 36 will return to their original state (under the action of the spring 37).

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A splash-proof plug, comprising a connector (1), a wire (2) connected to the connector (1), and a waterproof component (3) disposed at the end of the connector (1) away from the wire (2), characterized in that: The connector (1) includes a central block (12) and a bottom block (11) and a top block (13) respectively disposed at both ends of the central block (12). The bottom block (11) has a first straight channel (111), a bend (112) and a second straight channel (113) inside. The top block (13) is provided with a pin (14). The waterproof component (3) includes a sealing airbag (31) and a sealing ring (36) disposed on one side of the sealing airbag (31). The sealing ring (36) is located in the first straight channel (111), and the sealing ring (36) is located in the second straight channel (113). The sealing ring (36) is attached to the inner wall of the second straight channel (113). The sealing airbag (31) is provided with a first sealing block (34) at one end near the sealing ring (36), and a second sealing block (35) is provided at the other end of the first sealing block (34) away from the sealing airbag (31). The second sealing block (35) is fixedly connected to the sealing ring (36).

2. The waterproof and splash-proof plug according to claim 1, characterized in that: The sealing airbag (31) is a hollow cavity structure, and the sealing airbag (31) is in contact with the inner wall of the first straight channel (111).

3. A waterproof and splash-proof plug according to claim 1, characterized in that: The cavity of the sealing airbag (31) is filled with an inert gas, and the air pressure inside the cavity of the sealing airbag (31) is 1.05 to 1.2 times the standard atmospheric pressure.

4. A waterproof and splash-proof plug according to claim 1, characterized in that: One end of the sealing airbag (31) is disposed in the first straight channel (111), and the other end protrudes from the surface of the central block (12).

5. A waterproof and splash-proof plug according to claim 1, characterized in that: The sealing airbag (31) is provided with a sleeve (32) and an inner push rod (33) at one end near the sealing ring (36). The two ends of the sleeve (32) are fixed to the sealing airbag (31) and the inner push rod (33) respectively. The first sealing block (34) is fixed to the end of the inner push rod (33) away from the sealing airbag (31).

6. A waterproof and splash-proof plug according to claim 5, characterized in that: Two springs (37) are fixed to one end of the casing (32) away from the sealing airbag (31), and the two springs (37) are respectively installed on two pads (38).

7. A waterproof and splash-proof plug according to claim 6, characterized in that: The spring (37) and the pad (38) are both located in the first straight channel (111), and both pads (38) are fixed to the center block (12).