Waterproof power connection plug of household electrical appliance

Abstract

The utility model discloses a waterproof electrical plug for household appliances, which relates to the field of electrical connectors and comprises a plug body, a U-shaped groove is arranged inside the plug body, two side walls of the U-shaped groove are both provided with sliding grooves, the top surface of the plug body is fixedly connected with a group of opposite clamping plates, the clamping plates are both internally provided with limiting grooves, and the limiting grooves are fixedly connected with the plug body. The limiting grooves communicate with the corresponding sliding grooves, and an L-shaped sealing plate is slidably connected into the U-shaped groove. According to the utility model, the U-shaped groove is arranged in the plug body and the L-shaped sealing plate is slidably connected in the U-shaped groove, so that after the plug is used, the L-shaped sealing plate is moved to the bottom of the sliding groove for sealing the plug body, the first joint and the second joint are protected from being contacted with water, and therefore, the plug can be conveniently and rapidly used in the next time. Dryness of the first connector and the second connector can be guaranteed, and personal safety is protected.

Description

Technical Field

[0001] The utility model relates to the field of plug connectors, in particular to a waterproof plug for household appliances. Background Art

[0002] The connectors of general electronic products and the plugs of electrical appliances are called plugs. Household AC power plugs and sockets have a male connector that protrudes in the shape of a rod or copper plate, which is physically inserted into a female connector-type power socket with a slot or a hole. Size is an important technical requirement that determines whether plugs, sockets and converters can be used safely and whether they meet the general interchangeability requirements to avoid misinsertion. Unqualified size will affect user use or cause hidden dangers such as poor contact and misinsertion, which may damage the equipment at the least and cause fire and electric shock accidents at the worst. For example, the plug connector of an electrical water pump, in addition to being of high quality, needs to be waterproof to prevent water from spilling on the plug, causing leakage and affecting personal safety.

[0003] After searching, the applicant found that a Chinese patent disclosed "a waterproof power supply connection plug", and its publication (announcement) number is "CN203983601U". This patent mainly involves welding or crimping the wires on the copper tube first, and then putting the wires and copper tubes on a mold bracket to press the outer shape of the inner core, and then using hard plastic (such as PBT material, PP material) to completely wrap the copper tube and the wire connector to form the inner core of the plug, and then putting the inner core of the plug into another mold to press the PVC outer shape. The PVC material wraps most of the inner core and the connected wires. The PVC material at the tail of the plug also serves as the bending and pulling structure of the wire so that the tail of the wire can pass the swing test, which solves the problem that the female plug connecting the wires is easily damaged during use by the PVC material, resulting in the internal copper tube being exposed and causing electric shock;

[0004] The device in the above patent has a certain waterproof protection effect on the plug during use, but in actual use, for example, the plug of a water pump is placed on the ground after use. Since the water stored inside the water pump flows to the ground, some water will be absorbed by the plug, causing the plug to be dried before use next time. If the water is not dried thoroughly, it will threaten personal safety. Utility Model Content

[0005] The purpose of the utility model is to provide a waterproof electrical plug for household appliances, so as to solve the problem that the device in the above patent proposed in the above background technology has a certain waterproof protection effect on the plug during use, but in actual use, for example, the plug of a water pump is placed on the ground after use. Since the water source stored inside the water pump flows to the ground, part of the water will be absorbed by the plug, causing the plug to be dried before use next time. If the water is not dried thoroughly, it will threaten the problem of personal safety.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waterproof electrical plug for household appliances, comprising a plug body, a U-shaped groove is provided inside the plug body, and slide grooves are provided on both side walls of the U-shaped groove. A group of opposing card plates are fixedly connected to the top surface of the plug body, and limiting grooves are provided inside the card plates, and the limiting grooves are communicated with the corresponding slide grooves. An L-shaped sealing plate is slidably connected to the inside of the U-shaped groove.

[0007] Preferably, a receiving groove is provided on the top surface of the plug body, and the size of the receiving groove is matched with the size of the L-shaped sealing plate.

[0008] Preferably, circular grooves are provided on two symmetrical sides of the L-shaped sealing plate, and the side walls inside the receiving grooves are provided with interference blocks, the tops of the interference blocks are semicircular in design, and the size of the interference blocks matches the size of the circular grooves.

[0009] Preferably, the bottom ends of the side walls of the L-shaped sealing plate are fixedly connected with rotating columns, the size of which matches the size of the limiting groove and the sliding groove, and the rotating columns slide inside the limiting groove and the sliding groove.

[0010] Preferably, a handle is fixedly connected to the top end of the L-shaped sealing plate, and the bottom surface of the handle is frosted.

[0011] Preferably, four square grooves are provided inside the plug body, and springs are fixedly connected inside the four square grooves, and one end of the spring away from the square groove is fixedly connected to the bottom surface of the corresponding abutment block.

[0012] Preferably, three first connectors are fixedly connected to one side of the plug body, second connectors are provided inside the first connectors, grooves are provided inside the first connectors, circular holes are provided on both side walls of the grooves, and coil springs are fixedly connected inside the circular holes.

[0013] Preferably, both side surfaces of the second joint are fixedly connected with rotating rods, the rotating rods are inserted into the circular holes of the two side walls of the corresponding groove, and the rod walls of the two rotating rods are fixedly connected to one end of the corresponding coil spring.

[0014] Technical effects and advantages of the utility model:

[0015] 1. The utility model provides a U-shaped groove on the plug body and an L-shaped sealing plate is slidably connected inside the U-shaped groove. When the plug is used, it is only necessary to move the L-shaped sealing plate to the bottom of the slide groove to seal the plug body, thereby protecting the first joint and the second joint from contact with water. When used next time, the first joint and the second joint can be kept dry, thereby protecting personal safety.

[0016] 2. The utility model provides a first joint, and a second joint is rotatably connected inside the first joint. The rotation of the second joint can extend the contact with the power socket. At the same time, when the plug is not used, the second joint is rotated under the first joint to facilitate the closing of the L-shaped sealing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model.

[0019] Figure 3 It is a schematic diagram of an L-shaped sealing plate of the utility model.

[0020] Figure 4 This is a schematic diagram of the exploded structure of the first joint of the utility model.

[0021] Figure 5 It is a schematic diagram of the rear cross-sectional structure of the plug body of the utility model.

[0022] In the figure: 1. plug body; 2. U-shaped groove; 3. clamping plate; 4. L-shaped sealing plate; 5. receiving groove; 6. round groove; 7. handle; 8. first joint; 9. second joint; 10. limit groove; 11. resistance block; 12. rotating column; 13. sliding groove; 15. square groove; 16. spring; 17. rotating rod; 18. groove; 19. coil spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides Figure 1-5 A waterproof electrical plug for household appliances shown in the figure comprises a plug body 1, a U-shaped groove 2 is provided inside the plug body 1, and slide grooves 13 are provided on both side walls of the U-shaped groove 2. A group of opposing card plates 3 are fixedly connected to the top surface of the plug body 1, and limiting grooves 10 are provided inside the card plates 3. The limiting grooves 10 are communicated with the corresponding slide grooves 13, and an L-shaped sealing plate 4 is slidably connected inside the U-shaped groove 2.

[0025] like Figure 1As shown, a receiving groove 5 is provided on the top surface of the plug body 1, and the size of the receiving groove 5 is adapted to the size of the L-shaped sealing plate 4, so that when the L-shaped sealing plate 4 is opened, it can be stuck on the receiving groove 5 to save space. A handle 7 is fixedly connected to the top of the L-shaped sealing plate 4, and the bottom surface of the handle 7 is frosted to prevent the handle 7 from slipping when it is pulled.

[0026] like Figure 3 As shown, the two side surfaces of the second joint 9 are fixedly connected with rotating rods 17 , which are inserted into the circular holes of the two side walls of the corresponding groove 18 , and the rod walls of the two rotating rods 17 are fixedly connected to one end of the corresponding coil spring 19 .

[0027] like Figure 4 As shown, three first connectors 8 are fixedly connected to one side of the plug body 1, and second connectors 9 are provided inside the first connectors 8. A groove 18 is provided inside the first connector 8, and circular holes are provided on both side walls of the groove 18, and coil springs 19 are fixedly connected inside the circular holes. When the L-shaped sealing plate 4 is opened, the coil spring 19 drives the rotating rod 17 to rotate, and the rotation of the rotating rod 17 drives the second connector 9 to rotate, thereby resetting the second connector 9 to facilitate plugging with the socket.

[0028] like Figure 5 As shown, four square grooves 15 are formed inside the plug body 1 , and springs 16 are fixedly connected inside the four square grooves 15 . One end of the spring 16 away from the square groove 15 is fixedly connected to the bottom surface of the corresponding abutment block 11 .

[0029] like Figure 2 and Figure 3 As shown, circular grooves 6 are provided on the two symmetrical sides of the L-shaped sealing plate 4, and the side walls inside the receiving groove 5 are provided with resistance blocks 11. The top of the resistance block 11 is designed as a semicircle, and the size of the resistance block 11 is adapted to the size of the circular groove 6. The resistance block 11 is pushed by the spring 16 to be stuck on the circular groove 6, so that the L-shaped sealing plate 4 is positioned to save space.

[0030] like Figure 1 and Figure 3 As shown, the bottom ends of the side walls of the L-shaped sealing plate 4 are fixedly connected with rotating posts 12 , the size of which matches the size of the limiting groove 10 and the sliding groove 13 , and the rotating posts 12 slide inside the limiting groove 10 and the sliding groove 13 .

[0031] Working principle of the utility model: When the utility model is used, first pull the handle 7 to move upward, and the movement of the handle 7 drives the L-shaped sealing plate 4 to move upward, and the upward movement of the L-shaped sealing plate 4 drives the rotating column 12 to move upward, until the rotating column 12 moves to the top of the limiting groove 10, and then flip the L-shaped sealing plate 4, so that the two circular grooves 6 on the side of the L-shaped sealing plate 4 are stuck on the corresponding abutment block 11 for fixation, and then the second connector 9 is inserted into the power socket;

[0032] After use, the L-shaped sealing plate 4 is flipped over to move downward. When the bottom end of the L-shaped sealing plate 4 moves to the first joint 8, the second joint 9 is squeezed to flip the second joint 9 to the bottom of the first joint 8, and then continue to move downward until the circular groove 6 on the side of the L-shaped sealing plate 4 is stuck on the corresponding resistance block 11. At this time, the seal is completed to protect the plug. This article highlights the innovative structure and does not elaborate on the prior art.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waterproof electrical plug for household appliances, comprising a plug body (1), characterized in that: A U-shaped groove (2) is provided inside the plug body (1), and two side walls of the U-shaped groove (2) are provided with sliding grooves (13). A group of opposing clamping plates (3) are fixedly connected to the top surface of the plug body (1), and limiting grooves (10) are provided inside the clamping plates (3). The limiting grooves (10) are communicated with the corresponding sliding grooves (13), and an L-shaped sealing plate (4) is slidably connected inside the U-shaped groove (2).

2. A waterproof electrical plug for household appliances according to claim 1, characterized in that: The top surface of the plug body (1) is provided with a receiving groove (5), and the size of the receiving groove (5) is matched with the size of the L-shaped sealing plate (4).

3. A waterproof electrical plug for household appliances according to claim 2, characterized in that: The two symmetrical sides of the L-shaped sealing plate (4) are provided with circular grooves (6), and the side walls inside the receiving groove (5) are provided with a resistance block (11). The top of the resistance block (11) is semicircular in design, and the size of the resistance block (11) is adapted to the size of the circular groove (6).

4. A waterproof electrical plug for household appliances according to claim 1, characterized in that: The bottom ends of the side walls of the L-shaped sealing plate (4) are fixedly connected with rotating columns (12), the size of which matches the size of the limiting groove (10) and the sliding groove (13), and the rotating columns (12) slide inside the limiting groove (10) and the sliding groove (13).

5. A waterproof electrical plug for household appliances according to claim 1, characterized in that: A handle (7) is fixedly connected to the top end of the L-shaped sealing plate (4), and the bottom surface of the handle (7) is frosted.

6. A waterproof electrical plug for household appliances according to claim 1, characterized in that: Four square grooves (15) are provided inside the plug body (1), and springs (16) are fixedly connected inside the four square grooves (15). One end of the spring (16) away from the square groove (15) is fixedly connected to the bottom surface of the corresponding abutment block (11).

7. A waterproof electrical plug for household appliances according to claim 1, characterized in that: Three first connectors (8) are fixedly connected to one side of the plug body (1), a second connector (9) is provided inside each of the first connectors (8), a groove (18) is provided inside each of the first connectors (8), circular holes are provided on both side walls of the groove (18), and a coil spring (19) is fixedly connected inside each of the circular holes.

8. A waterproof electrical plug for household appliances according to claim 7, characterized in that: The two side surfaces of the second joint (9) are fixedly connected with rotating rods (17), the rotating rods (17) are inserted into the circular holes on the two side walls of the corresponding groove (18), and the rod walls of the two rotating rods (17) are fixedly connected to one end of the corresponding coil spring (19).

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