CN214254875U - Waterproof type earth leakage protection plug - Google Patents

Abstract

The utility model discloses a waterproof type earth leakage protection plug, including the upper cover, have the first lower cover of participating in, set up at the second lower cover of first lower cover tail end, arrange the earth leakage protection core of the holding intracavity that upper cover and first lower cover enclose in place the line hole that first lower cover and second lower cover enclose and install the fastener in the line hole, install first terminal surface sealing washer between upper cover and the first lower cover, install the second terminal surface sealing washer just between first lower cover and the second lower cover the second terminal surface sealing washer is connected with the fastener integration. The utility model discloses can realize the all-round sealed to earth leakage protection plug, water-proof effects is good, can improve its power consumption safety in the great place of humidity very much.

Description

Waterproof type earth leakage protection plug

Technical Field

The utility model relates to an earth leakage protection plug especially relates to a waterproof type earth leakage protection plug.

Background

The rear-connection type leakage protection plug has wide application value in the field of leakage protection of electric appliances, can prevent leakage accidents from happening, and is flexible to use. However, in the prior art, the rear-connection leakage protection plug has a large design volume, short mechanical life, poor waterproof structure function, incapability of separating water from electricity and only realizing the most basic square spraying function, and is easy to cause electric shock accidents in places with severe environment and high annual humidity. In addition, if the electric leakage protection device works in a humid environment, the internal structure is easy to rust, so that the service life of the electric leakage protection device is shortened, the electric leakage protection effect is weakened, the personal safety cannot be effectively protected, and the risk of electric leakage accidents is greatly increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the problem that above-mentioned prior art exists, provide a waterproof type earth leakage protection plug, have outstanding waterproof function, can prevent effectively that output inner structure from weing, reduce the risk that the electric leakage accident takes place.

The utility model provides a technical scheme that its technical problem adopted: a waterproof leakage protection plug comprises an upper cover, a first lower cover with plug pins, a second lower cover arranged at the tail end of the first lower cover, a leakage protection machine core arranged in a containing cavity enclosed by the upper cover and the first lower cover, a wiring hole enclosed by the first lower cover and the second lower cover, and a wire clamp arranged on the wiring hole, a first groove is arranged on the lower end face of the upper cover, a second groove matched with the first groove is arranged on the upper end face of the first lower cover, a first end face sealing ring is arranged in the second groove and the first groove, the wire clamp is characterized in that a third groove is formed in the lower end face of the tail end of the first lower cover, a fourth groove matched with the third groove is formed in the upper end face of the second lower cover, a second end face sealing ring is installed in the fourth groove and the third groove and communicated with the wire feeding hole, and the second end face sealing ring is integrally connected with the wire clamp.

For further improvement, four corners in the second groove are provided with first positioning columns, the inner side of the first end face sealing ring is provided with a first fixing lug plate for the first positioning columns to penetrate through, and positioning holes matched with the first positioning columns in an inserting mode are formed in the first groove.

Further perfecting, be located second lower cover top the first lower cover up end is equipped with a pair of second reference column at least, and is a pair of the second reference column is located the outside of second recess, first end sealing washer inboard is equipped with and wears out first recess and second recess and supplies the fixed otic placode of second that the second reference column passed.

Further perfection, the inner wall of the tail end of the upper end face of the first lower cover is provided with a water blocking convex edge, and the inner wall of the tail end of the lower end face of the upper cover is provided with a water blocking concave edge matched with the water blocking convex edge.

Further perfection, the tail part of the first end face sealing ring is provided with an arch part.

The wire clamp is characterized in that a first sealing flange is arranged at the upper end of the wire clamp, the lower side surface of the first sealing flange is attached to the inner wall of the joint of the first lower cover and the second lower cover, a second sealing flange is arranged at the lower end of the wire clamp, the upper side surface of the second sealing flange is attached to the outer wall of the joint of the first lower cover and the second lower cover, first sealing rings, second sealing rings and third sealing rings are sequentially arranged at the middle of the wire clamp from top to bottom at intervals, a first annular sealing groove, a second annular sealing groove and a third annular sealing groove which are respectively in sealing fit with the first sealing rings, the second sealing rings and the third sealing rings are arranged on the inner wall of the wire routing hole, a fourth annular sealing groove is arranged on the outer wall of the wire clamp between the first sealing flange and the first sealing rings, and an annular boss which is in sealing fit with the fourth annular sealing groove is arranged on the inner hole of the wire routing hole.

Further perfecting, first sealing washer is trapezoidal sealing washer, second sealing washer and third sealing washer are the V-arrangement sealing washer, be the V-arrangement slot between first sealing washer and the second sealing washer, between second sealing washer and the third sealing washer, be the rectangle slot between third sealing washer and the second seal flange.

Further perfect, the upper surface of upper cover is equipped with the switch area, is equipped with reset key, pilot lamp and check key in the switch area, the periphery in switch area is equipped with the mounting groove, is equipped with the transparent waterproof soft lid that covers the switch area on the mounting groove.

Further perfection, the second end face sealing ring and the left side and the right side of the second sealing ring are connected integrally.

Further perfect, the outer wall of upper cover and first lower cover is at both seam punishment shaping respectively and is had first recess and second recess, and first recess and second recess can constitute a recess, realize the external seal to the seam between upper cover and the first lower cover through setting up waterproof glue or waterproof sealing circle.

The utility model discloses profitable effect is: the utility model discloses a set up first terminal surface sealing washer between upper cover and the first lower cover to set up the second terminal surface sealing washer of being connected with the fastener integration between first lower cover and second lower cover, realize the all-round sealed of earth leakage protection plug, water-proof effects is good, can improve its power consumption safety in the great place of humidity very much. The utility model discloses a leakage protection plug adopts the design of compatible two-pin European style plug in the leakage protection field, extensively is used for the electric heating table, the water storage formula water heater, electricity section of thick bamboo of blowing, electricity presss from both sides, electric scissors, dust catcher, electric bathtub, electric water heater, electric rice cooker, TV set, refrigerator, microwave oven, washing machine, dish washer, sterilizer, water dispenser, computer, electric tool and medical equipment, the leakage protection of terminal electrical apparatus such as instrument and meter.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a schematic structural view of the upper cover;

FIG. 3 is a schematic view of the upper structure of the first lower cover;

FIG. 4 is a schematic view of a lower structure of the first lower cover;

FIG. 5 is a schematic structural view of a second lower cover;

FIG. 6 is a schematic view of a first end seal ring;

FIG. 7 is a schematic structural view of a wire clamp and a second end face seal ring;

fig. 8 is a schematic view of the assembly structure of the present invention;

FIG. 9 is an enlarged view of a portion of the structure of FIG. 8;

description of reference numerals: 1. an upper cover, 11, a first groove, 111, a positioning hole, 13, a water-blocking concave edge, 14, a switch area, 141, a reset key, 142, an indicator light, 143, a verification key, 144, a mounting groove, 15, an upper half groove, 2, a first lower cover, 21, a second groove, 211, a first positioning column, 22, a third groove, 23, a second positioning column, 24, a water-blocking convex edge, 25, a lower half groove, 3, a second lower cover, 31, a fourth groove, 4, a leakage protection movement, 5, a wiring hole, 51, a first annular sealing groove, 52, a second annular sealing groove, 53, a third annular sealing groove, 54, an annular boss, 6, a wire clamp, 61, a first sealing flange, 62, a second sealing flange, 63, a first sealing ring, 64, a second sealing ring, 65, a third sealing ring, 66, a fourth annular sealing groove, 7, a first end face sealing ring, 71, a first fixing lug plate, 72, a first fixing lug plate, a second sealing ring, a, A second fixed lug plate 73, an arch part 8 and a second end face sealing ring.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

referring to figures 1-6: the embodiment provides a waterproof leakage protection plug, including upper cover 1, have the first lower cover 2 of participating in, set up the second lower cover 3 at first lower cover 2 tail end, arrange in upper cover 1 and the leakage protection core 4 of the holding intracavity that first lower cover 2 encloses, the line hole 5 and the fastener 6 of installing on line hole 5 are walked that first lower cover 2 and second lower cover 3 enclose, the electric wire is connected with binding post on first lower cover 2 behind the hole of fastener 6, realize the electric connection with leakage protection core 4, have on the first lower cover 2 and participate in, can insert the jack on the socket, the switch on, make the electrical apparatus of electric wire load end can normally work, when the electric leakage takes place, leakage protection core 4 automatic disconnection circuit, realize leakage protection. The upper surface of upper cover 1 is equipped with switch area 14, is equipped with reset key 141, pilot lamp 142 and check key 143 in the switch area 14, the periphery of switch area 14 is equipped with mounting groove 144, is equipped with the transparent waterproof soft lid (not shown in the figure) that covers switch area 14 on the mounting groove 144, can see through transparent waterproof soft lid and press the operation to reset key 141 and check key 143, can strengthen the waterproof performance in switch area. Be equipped with first recess 11 on the lower terminal surface of upper cover 1, be equipped with on the up end of first lower cover 2 with first recess 11 complex second recess 21, install first terminal surface sealing washer 7 in second recess 21 and the first recess 11, realize the terminal surface sealing connection between upper cover 1 and the first lower cover 2, be equipped with third recess 22 on the lower terminal surface of 2 tail ends of first lower cover, be equipped with on the up end of second lower cover 3 with third recess 22 complex fourth recess 31, install second terminal surface sealing washer 8 in fourth recess 31 and the third recess 22 and all with walk line hole 5 intercommunication, second terminal surface sealing washer 8 is connected with fastener 6 integration, realizes sealing up the wiring room between first lower cover 2 and the second lower cover 3. Four corners in the second groove 21 are provided with first positioning columns 211, the inner side of the first end face sealing ring 7 is provided with a first fixing lug plate 71 for the first positioning column 211 to pass through, a positioning hole 111 which is spliced and matched with the first positioning column 211 is arranged in the first groove 11, and the first positioning column 211 can facilitate the installation and positioning of the first end face sealing ring 7 on the second groove 21. The upper end face of the first lower cover 2 above the second lower cover 3 is at least provided with a pair of second positioning columns 23, the second positioning columns 23 are located outside the second grooves 21, the inner side of the first end face sealing ring 7 is provided with a second fixing lug plate 72 penetrating through the first grooves 11 and the second grooves 21 and allowing the second positioning columns 23 to penetrate through, and the second fixing lug plate 72 can improve the waterproof sealing performance of the point positions of the first grooves 11 and the second grooves 21. Be equipped with the protruding edge 24 that blocks water on the up end tail end inner wall of first lower cover 2, be equipped with on the lower terminal surface tail end inner wall of upper cover 1 and block water protruding edge 24 complex the concave edge 13 that blocks water, the protruding edge 24 that blocks water and the concave edge 13 that blocks water can further improve the waterproof ability between the rear end gap of upper cover 1 and first lower cover 2, avoid the electric wire to drag the rear end that leads to upper cover 1 and first lower cover 2 to produce the clearance. The tail part of the first end face sealing ring 7 is provided with an arch part 73 which can be attached to an annular groove formed at the position of the first groove 11 and the second groove 21, so that the sealing effect is enhanced.

As shown in fig. 7, a first sealing flange 61 is disposed at the upper end of the wire clamp 6, the lower side surface of the first sealing flange 61 is attached to the inner wall of the joint of the first lower cover 2 and the second lower cover 3 to realize inner waterproof sealing, a second sealing flange 62 is disposed at the lower end of the wire clamp 6, the upper side surface of the second sealing flange 62 is attached to the outer wall of the joint of the first lower cover 2 and the second lower cover 3 to realize outer waterproof sealing, a first sealing ring 63, a second sealing ring 64 and a third sealing ring 65 are sequentially disposed at intervals from top to bottom in the middle of the wire clamp 6, a first annular sealing groove 51, a second annular sealing groove 52 and a third annular sealing groove 53 which are respectively in sealing fit with the first sealing ring 63, the second sealing ring 64 and the third sealing ring 65 are disposed on the inner wall of the wire routing hole 5 to form a triple sealing in the middle, a fourth annular sealing groove 66 is disposed on the outer wall of the wire clamp 6 between the first sealing flange 61 and the first sealing ring 63, the inner hole of the wiring hole 5 is provided with an annular boss 54 which is in sealing fit with the fourth annular sealing groove 66, so that the inner end sealing effect of the first sealing flange 61 can be further improved.

The first sealing ring 63 is a trapezoid sealing ring, the second sealing ring 64 and the third sealing ring 65 are V-shaped sealing rings, V-shaped grooves are formed between the first sealing ring 63 and the second sealing ring 64 and between the second sealing ring 64 and the third sealing ring 65, rectangular grooves are formed between the third sealing ring 65 and the second sealing flange 62, and the structures of various bosses and grooves on the surface of the wire clamp 6 can further improve the sealing performance between the wire clamp 6 and the wire routing hole 5. The second end face seal ring 8 and the left and right side parts of the second seal ring 64 are integrally connected, so that the sealing performance of the end faces of the first lower cover 2 and the second lower cover 3 can be obviously improved.

As shown in fig. 8-9, an upper half groove 15 and a lower half groove 25 are respectively formed on the outer walls of the upper cover 1 and the first lower cover 2 at the joint therebetween, the upper half groove 15 and the lower half groove 25 can form a groove, and the outer seal of the joint between the upper cover 1 and the first lower cover 2 is realized by arranging a waterproof glue or a waterproof sealing ring, so as to improve the waterproof grade of the housing.

While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims (10)

1. The utility model provides a waterproof type earth leakage protection plug, includes upper cover (1), has first lower cover (2) of participating in, sets up second lower cover (3) at first lower cover (2) tail end, arranges in electric leakage protection core (4) of the holding intracavity that upper cover (1) and first lower cover (2) enclose in, walk line hole (5) and install fastener (6) on walking line hole (5) that first lower cover (2) and second lower cover (3) enclose, characterized by: be equipped with first recess (11) on the lower terminal surface of upper cover (1), be equipped with on the up end of first lower cover (2) with first recess (11) complex second recess (21), install first terminal surface sealing washer (7) in second recess (21) and first recess (11), be equipped with third recess (22) on the lower terminal surface of first lower cover (2) tail end, be equipped with on the up end of second lower cover (3) with third recess (22) complex fourth recess (31), fourth recess (31) and third recess (22) in install second terminal surface sealing washer (8) and all with walk line hole (5) intercommunication, second terminal surface sealing washer (8) are connected with fastener (6) integration.

2. A waterproof type earth leakage protection plug according to claim 1, wherein: four corners in the second groove (21) are provided with first positioning columns (211), the inner side of the first end face sealing ring (7) is provided with a first fixing lug plate (71) for the first positioning columns (211) to pass through, and positioning holes (111) which are matched with the first positioning columns (211) in an inserting mode are arranged in the first groove (11).

3. A waterproof type earth leakage protection plug according to claim 2, wherein: the upper end face of the first lower cover (2) above the second lower cover (3) is at least provided with a pair of second positioning columns (23), the second positioning columns (23) are located outside the second grooves (21), and the inner side of the first end face sealing ring (7) is provided with a second fixing lug plate (72) penetrating through the first grooves (11) and the second grooves (21) and allowing the second positioning columns (23) to penetrate through.

4. A waterproof leakage protection plug according to claim 3, wherein: and a water blocking convex edge (24) is arranged on the inner wall of the tail end of the upper end surface of the first lower cover (2), and a water blocking concave edge (13) matched with the water blocking convex edge (24) is arranged on the inner wall of the tail end of the lower end surface of the upper cover (1).

5. A waterproof type earth leakage protection plug according to claim 4, wherein: and an arch part (73) is arranged at the tail part of the first end surface sealing ring (7).

6. A waterproof type earth leakage protection plug according to claim 5, wherein: the upper end of fastener (6) is equipped with first sealed flange (61), and the downside of first sealed flange (61) is laminated with the joint department inner wall of first lower cover (2) and second lower cover (3) mutually, the lower extreme of fastener (6) is equipped with second sealed flange (62), and the last side of second sealed flange (62) is laminated with the joint department outer wall of first lower cover (2) and second lower cover (3) mutually, the middle part from the top down of fastener (6) interval in proper order is provided with first sealing washer (63), second sealing washer (64) and third sealing washer (65), be equipped with respectively on walking line hole (5) inner wall with first sealing washer (63), second sealing washer (64) and third sealing washer (65) sealed complex first annular seal groove (51), second annular seal groove (52) and third annular seal groove (53), be equipped with the close sealed close of fourth annular seal groove (53) on fastener (6) outer wall between first sealed flange (61) and first sealing washer (63), be equipped with fourth annular seal groove (52) And the inner hole of the wiring hole (5) is provided with an annular boss (54) which is in sealing fit with the fourth annular sealing groove (66).

7. A waterproof type earth leakage protection plug according to claim 6, wherein: first sealing washer (63) are trapezoidal sealing washer, second sealing washer (64) and third sealing washer (65) are the V-arrangement sealing washer, be the V-arrangement slot between first sealing washer (63) and second sealing washer (64), between second sealing washer (64) and third sealing washer (65), be the rectangle slot between third sealing washer (65) and second sealing flange (62).

8. A waterproof type earth leakage protection plug according to claim 7, wherein: the upper surface of upper cover (1) is equipped with switch area (14), is equipped with reset key (141), pilot lamp (142) and check key (143) in switch area (14), the periphery of switch area (14) is equipped with mounting groove (144), is equipped with the transparent waterproof soft lid that covers switch area (14) on mounting groove (144).

9. A waterproof type earth leakage protection plug according to claim 8, wherein: the second end face sealing ring (8) is integrally connected with the left side part and the right side part of the second sealing ring (64).

10. A waterproof leakage protection plug according to claim 9, wherein: the outer wall of upper cover (1) and first lower cover (2) is at both seams punishment shaping respectively and is had first recess (15) and half recess (25) down, and first recess (15) and half recess (25) down can constitute a recess, realize the external seal to the seam between upper cover (1) and first lower cover (2) through setting up waterproof glue or waterproof sealing circle.

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