An electric leakage protection plug structure

By designing a leakage protection plug structure that includes leakage protection components and a wire harness fixing device, the safety risks and wire harness detachment issues during plug short circuits are resolved, enabling rapid circuit disconnection and convenient maintenance.

CN120497722BActive Publication Date: 2026-03-20ZHONGSHAN GRACE ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-05-16
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Existing leakage protection plugs have excessively high prong temperatures during short circuits, causing the plastic to melt or deform, posing a safety risk. The wiring harness is also prone to detachment, and the screws are prone to rust, making disassembly inconvenient.

Method used

A leakage current protection plug structure was designed, including leakage current protection components, circuit board, slide groove, reset rod, magnetic ring, etc., to achieve rapid circuit cut-off, and to fix the wire harness by rotating block and adjustment groove, and to set groove and slot protection screw.

Benefits of technology

It effectively prevents safety risks caused by excessively high plug temperature, prevents wire harness from falling off, facilitates later maintenance, and improves the stability and safety of the plug.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a leakage protection plug structure and relates to the technical field of plugs. The leakage protection plug structure comprises a plug assembly, the inside of the plug assembly is provided with a leakage protection assembly, the plug assembly comprises a top cover, the inside of the top cover is provided with a supporting block, the inside of the top cover is provided with a supporting column A, the bottom end of the supporting column A is provided with a fixing rod, the bottom end of the top cover is provided with a clamping plate A, the bottom end of the top cover is provided with a bottom cover, the inside of the bottom cover is provided with a supporting column B, the inside of the supporting column B is provided with a screw, and the inside of the top cover is provided with a wire harness protection head. The leakage protection plug structure has the functions of quickly cutting off the circuit when the plug is short-circuited, starting a magnetic ring when short-circuiting occurs, attracting a locking piece to slide and separate from a plug-in piece A, and thus breaking the circuit, effectively preventing the safety risks of plastic melting, deformation or fire caused by the excessively high temperature of the plug-in piece, significantly improving the use safety, and reducing the possibility of personal injury and property loss.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plug, in particular to a leakage protection plug structure. BACKGROUND

[0002] With the increasing popularity of household appliances, people pay more and more attention to the use of household appliances, at present, many household appliances are equipped with leakage protection plug at the input end of power supply.

[0003] The leakage protector, also known as leakage circuit breaker, is mainly used to protect the human body from electric shock when the device has a leakage fault, and has overload and short circuit protection functions, which can be used to protect the overload and short circuit of the line or motor, and can also be used as an infrequent switching start of the line under normal conditions.

[0004] However, the existing leakage protection plug structure has the following disadvantages:

[0005] 1) When the plug has a line short circuit during use, the temperature of the plug is too high, which causes the shell plastic material at the root of the plug to melt or deform, and even causes fire and burns, resulting in safety risks of the product, causing personal injury or property loss.

[0006] 2) The existing plug has a wire harness fixed at the root of the plug by a wire harness protection head, without a secondary fixing structure, which will cause the wire harness to fall off after a long time of use, resulting in the inability to continue using the plug.

[0007] 3) After a long time of use, the screw will rust due to the lack of protection structure, which will cause the screw to be difficult to disassemble when disassembling and maintaining the plug.

[0008] Therefore, we propose a leakage protection plug structure to solve the above problems. SUMMARY

[0009] The present application aims to provide a leakage protection plug structure, which can quickly cut off the circuit when the plug is short-circuited, and when the short circuit occurs, the resistance starts the magnetic ring, the magnetic ring drives the locking piece to slide and separate from the plug A, thereby disconnecting the circuit, effectively preventing the safety risks of plastic melting, deformation or fire caused by high temperature of the plug, to solve the problems in the above background technology.

[0010] To achieve the above purpose, the present application provides the following technical scheme: a leakage protection plug structure, comprising a plug assembly, the inside of the plug assembly is provided with a leakage protection assembly;

[0011] The plug assembly comprises a top cover, the inside of the top cover is provided with a support block, the inside of the top cover is provided with a support column A, the bottom end of the support column A is provided with a fixed rod, the bottom end of the top cover is provided with a clamping plate A, the bottom end of the top cover is provided with a bottom cover, the inside of the bottom cover is provided with a support column B, the inside of the support column B is provided with a screw, the inside of the top cover is provided with a wire harness protection head, the inside of the top cover is provided with a circuit board, the inside of the circuit board is provided with a reset rod, the bottom end of the circuit board is provided with a magnetic ring, the bottom end of the circuit board is provided with a tripping seat, the top end of the tripping seat is provided with a support rod A, the inner wall of the support rod A is provided with a fixed block A, the top end of the tripping seat is provided with a pressure arm, the left side of the pressure arm is provided with a locking piece, the right side of the locking piece is provided with a connecting foot, the inside of the locking piece is provided with a clamping block, the left side of the clamping block is provided with an iron core, the left side of the iron core is provided with a spring B, and the left side of the iron core is provided with a tripping coil.

[0012] Preferably, the clamping plate A is connected between the bottom cover through the clamping groove A, the fixed rod is connected between the support column B through the fixed groove, the screw is connected between the support column B through the recess A, the screw is connected between the fixed rod through the thread groove, the wire harness protection head is connected between the top cover through the limiting groove A, and the wire harness protection head is connected between the bottom cover through the limiting groove B.

[0013] Preferably, the reset rod is connected between the circuit board through the sliding groove A, the left side of the reset rod is provided with an inclined groove, the top end of the reset rod is provided with a baffle, the reset rod is connected between the pressure arm through the sliding groove B, the top end of the baffle is provided with a pressing block, the bottom end of the baffle is provided with a spring A, the top end of the magnetic ring is provided with a pin A, and the fixed block A is connected between the circuit board through the positioning groove A.

[0014] Preferably, the connecting foot is connected between the pressure arm through the sliding groove, the clamping block is connected between the locking piece, the iron core is connected between the locking piece, one end of the spring B away from the iron core is fixed to the inner wall of the tripping coil, and the spring B is connected between the tripping coil through the receiving groove.

[0015] Preferably, the top end of the tripping seat is provided with a spring, the top end of the spring is provided with a contact, the bottom end of the tripping seat is provided with a fixed plate, the inner wall of the fixed plate is provided with a side block, the middle of the fixed plate is provided with a resistor, the top end of the resistor is provided with a pin B, the surface of the tripping seat is provided with a snap ring, the bottom end of the tripping seat is provided with a fixed seat, the top end of the fixed seat is provided with a support rod B, the inner wall of the support rod B is provided with a fixed block B, the top end of the fixed seat is provided with a ground connection piece, the inside of the ground connection piece is provided with a stop block, the bottom end of the stop block is provided with a plug A, the right side of the tripping seat is provided with a limiting plate, the bottom end of the fixed seat is provided with a plug B, and the top end of the plug B is provided with a connecting head.

[0016] Preferably, the contact is fixed at the top end of the spring through the hole slot, the fixed block B is in sliding connection between the snap ring, the support rod B is in sliding connection between the snap ring, the ground connection piece is in sliding connection between the fixed seat through the groove B, the ground connection piece is in sliding connection between the tripping seat through the limiting plate, the stop block is in sliding connection between the ground connection piece through the groove C, and the plug B is in sliding connection between the bottom cover through the mounting groove.

[0017] Preferably, the inside of the bottom cover is provided with a connecting rod, the connecting rod is provided with a rotating rod between the connecting rod, the surface of the rotating rod is provided with a rotating block, and the inner wall of the rotating block is provided with a clamping pin.

[0018] Preferably, the connecting rod is symmetrically distributed at the left and right ends of the inside of the bottom cover, the rotating block is in rotary connection between the connecting rod through the adjusting groove, the rotating block is in rotation on the surface of the rotating rod through the rotating groove, and the clamping pins are uniformly distributed on the inner wall of the rotating block.

[0019] Preferably, the bottom end of the bottom cover is provided with a groove D, the inside of the groove D is provided with a clamping groove B, the inside of the clamping groove B is provided with a clamping plate B, the surface of the clamping plate B is provided with a clamping pad, and the bottom end of the clamping plate B is provided with a protective cover.

[0020] Preferably, the clamping plate B is in sliding connection between the bottom cover through the clamping groove B, the clamping pads are uniformly distributed on the surface of the clamping plate B, the clamping pads are in sliding connection between the bottom cover through the clamping groove B, and the protective cover is in sliding connection between the bottom cover through the groove D.

[0021] Compared with the prior art, the present application has the following beneficial effects:

[0022] 1. The leakage protection assembly, the circuit board, the sliding groove A, the reset rod, the inclined chute, the baffle, the pressing block, the spring A, the magnetic ring, the pin A, the positioning groove A, the tripping seat, the supporting rod A, the fixed block A, the pressing arm, the sliding groove B, the sliding groove, the locking piece, the connecting foot, the clamping block, the iron core, the spring B, the tripping coil, the storage groove, the elastic sheet, the hole groove, the contact, the fixed plate, the side block, the resistor, the pin B, the clamping ring, the fixed seat, the supporting rod B, the fixed block B, the recess B, the grounding connecting piece, the recess C, the blocking piece, the insertion piece A, the limiting plate, the insertion piece B and the connector are used to realize the function of quickly cutting off the circuit when the plug is short-circuited, and when the short circuit occurs, the resistor starts the magnetic ring, the magnetic ring drives the locking piece to slide and separate from the insertion piece A, so as to disconnect the circuit, effectively prevent the safety risks such as plastic melting, deformation or fire caused by the high temperature of the insertion piece, significantly improve the use safety, and reduce the possibility of personal injury and property loss.

[0023] 2. The device connecting rod, the adjusting groove, the rotating rod, the rotating block, the rotating groove and the clamping needle are used to realize the secondary fixation of the wire harness, after the wire harness is installed, the clamping needle firmly fixes the wire harness in the bottom cover through the cooperation of the rotating block and the adjusting groove, effectively prevents the wire harness from falling off after long-term use, and improves the reliability and service life of the plug.

[0024] 3. The device recess D, clamping groove B, clamping plate B, clamping pad and protective cover are used to realize better protection effect, effectively prevent the problem of inconvenient disassembly caused by rust of the screw due to water, after the top cover is fixed, the protective cover is inlaid to the bottom end of the bottom cover through the recess D, the clamping plate B and the clamping pad are firmly fixed in the bottom cover through the clamping groove B, so that the screw is protected from moisture erosion, and is convenient to disassemble during later maintenance. DETAILED DESCRIPTION

[0025] Figure 1 It is a front view structure perspective view of the leakage protection plug structure of the present application;

[0026] Figure 2 It is an explosion view top perspective view of the plug structure of the leakage protection plug structure of the present application;

[0027] Figure 3 It is a leakage protection plug structure of the present application Figure 2 It is an enlarged perspective view of the structure at A in the leakage protection plug structure of the present application;

[0028] Figure 4 It is an explosion view bottom perspective view of the plug structure of the leakage protection plug structure of the present application;

[0029] Figure 5 It is a leakage protection plug structure of the present application Figure 4 It is an enlarged perspective view of the structure at B in the leakage protection plug structure of the present application;

[0030] Figure 6It is an exploded top perspective view of the leakage protection assembly in the leakage protection plug structure of the present application;

[0031] Figure 7 It is the leakage protection plug structure of the present application Figure 6 It is an enlarged perspective view of the structure at C in the leakage protection plug structure of the present application;

[0032] Figure 8 It is an exploded bottom perspective view of the leakage protection assembly in the leakage protection plug structure of the present application;

[0033] Figure 9 It is the leakage protection plug structure of the present application Figure 8 It is an enlarged perspective view of the structure at D in the leakage protection plug structure of the present application.

[0034] In the figure: 1, plug assembly; 101, top cover; 102, support block; 103, support column A; 104, fixed rod; 105, threaded groove; 106, clamping plate A; 107, bottom cover; 108, clamping groove A; 109, mounting groove; 110, support column B; 111, fixed groove; 112, recess A; 113, screw; 2, limiting groove A; 3, limiting groove B; 4, wire harness protection head; 5, leakage protection assembly; 501, circuit board; 502, sliding groove A; 503, reset rod; 504, inclined groove; 505, baffle; 506, pressing block; 507, spring A; 508, magnetic ring; 509, pin A; 510, positioning groove A; 511, tripping seat; 512, support rod A; 513, fixed block A; 514, pressing arm; 515, sliding groove B; 516, sliding groove; 517, locking piece; 518, connecting foot; 519, clamping block; 520, iron core; 521, spring B; 522, tripping coil; 523, storage groove; 524, elastic piece; 525, hole groove; 526, contact; 527, fixed plate; 528, side block; 529, resistor; 530, pin B; 531, clamping ring; 532, fixed seat; 533, support rod B; 534, fixed block B; 535, recess B; 536, grounding connecting piece; 537, recess C; 538, stop block; 539, insertion piece A; 540, limiting plate; 541, insertion piece B; 542, connecting head; 6, connecting rod; 7, adjusting groove; 8, rotating rod; 9, rotating block; 10, rotating groove; 11, clamping needle; 12, recess D; 13, clamping groove B; 14, clamping plate B; 15, clamping pad; 16, protective cover. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0036] See the attached Figure 1 - attached Figure 8 As shown in the accompanying drawings, the present application provides a technical solution: an electric leakage protection plug structure, comprising a plug assembly, an electric leakage protection assembly is arranged in the plug assembly.

[0037] Example 1, according to Figure 1 、 Figure 2 、 Figure 4 、 Figures 6-9As shown, the plug assembly 1 comprises a top cover 101, the inside of the top cover 101 is provided with a support block 102, the inside of the top cover 101 is provided with a support column A 103, the bottom end of the support column A 103 is provided with a fixed rod 104, the bottom end of the top cover 101 is provided with a clamping plate A 106, the bottom end of the top cover 101 is provided with a bottom cover 107, the inside of the bottom cover 107 is provided with a support column B 110, the inside of the support column B 110 is provided with a screw 113, the inside of the top cover 101 is provided with a wire harness protection head 4, the inside of the top cover 101 is provided with a circuit board 501, the inside of the circuit board 501 is provided with a reset rod 503, the bottom end of the circuit board 501 is provided with a magnetic ring 508, the bottom end of the circuit board 501 is provided with a tripping seat 511, the top end of the tripping seat 511 is provided with a support rod A 512, the inner wall of the support rod A 512 is provided with a fixed block A 513, the top end of the tripping seat 511 is provided with a pressing arm 514, the left side of the pressing arm 514 is provided with a locking piece 517, the right side of the locking piece 517 is provided with a connecting foot 518, the inside of the locking piece 517 is provided with a clamping block 519, the left side of the clamping block 519 is provided with an iron core 520, the left side of the iron core 520 is provided with a spring B 521, the left side of the iron core 520 is provided with a tripping coil 522, the clamping plate A 106 is slidably connected between the bottom cover 107 through the clamping groove A 108, the fixed rod 104 is slidably connected between the support column B 110 through the fixed groove 111, the screw 113 is rotatably connected between the support column B 110 through the groove A 112, the screw 113 is rotatably connected between the fixed rod 104 through the thread groove 105, the wire harness protection head 4 is slidably connected between the top cover 101 through the limiting groove A 2, the wire harness protection head 4 is slidably connected between the bottom cover 107 through the limiting groove B 3, the reset rod 503 is slidably connected between the circuit board 501 through the sliding groove A 502, the left side of the reset rod 503 is provided with an inclined groove 504, the top end of the reset rod 503 is provided with a baffle 505, the reset rod 503 is slidably connected between the pressing arm 514 through the sliding groove B 515, the top end of the baffle 505 is provided with a pressing block 506, the bottom end of the baffle 505 is provided with a spring A 507, the top end of the magnetic ring 508 is provided with a pin A 509, the fixed block A 513 is slidably connected between the circuit board 501 through the positioning groove A 510, the connecting foot 518 is slidably connected between the pressing arm 514 through the sliding groove 516, the clamping block 519 is slidably connected with the locking piece 517, the iron core 520 is slidably connected with the locking piece 517, one end of the spring B 521 away from the iron core 520 is fixed to the inner wall of the tripping coil 522, the spring B 521 is slidably connected between the tripping coil 522 through the receiving groove 523, the top end of the tripping seat 511 is provided with a spring piece 524, the top end of the spring piece 524 is provided with a contact 526, the bottom end of the tripping seat 511 is provided with a fixed plate 527, the inner wall of the fixed plate 527 is provided with a side block 528, the middle of the fixed plate 527 is provided with a resistor 529, the top end of the resistor 529 is provided with a pin B 530, the surface of the tripping seat 511 is provided with a clamping ring 531,The bottom end of the tripping seat 511 is provided with a fixing seat 532, the top end of the fixing seat 532 is provided with a support rod B 533, the inner wall of the support rod B 533 is provided with a fixing block B 534, the top end of the fixing seat 532 is provided with a grounding connecting piece 536, the inside of the grounding connecting piece 536 is provided with a stop block 538, the bottom end of the stop block 538 is provided with an insertion piece A 539, the right side of the tripping seat 511 is provided with a limiting plate 540, the bottom end of the fixing seat 532 is provided with an insertion piece B 541, the top end of the insertion piece B 541 is provided with a connecting head 542, the contact head 526 is fixed at the top end of the elastic sheet 524 through the hole groove 525, the fixing block B 534 and the clasp ring 531 are slidingly connected, the support rod B 533 and the clasp ring 531 are slidingly connected, the grounding connecting piece 536 is slidingly connected between the fixing seat 532 and the recess B 535, the grounding connecting piece 536 is slidingly connected between the tripping seat 511 and the limiting plate 540, the stop block 538 is slidingly connected between the grounding connecting piece 536 and the recess C 537, and the insertion piece B 541 is slidingly connected between the bottom cover 107 and the mounting groove 109.

[0038] The effect achieved by the whole embodiment 1 is that multiple protection and fixed functions are achieved, the screw 113 is rotatably connected with the support column through the recess and is connected with the fixing rod 104 through the thread groove 105, rusting due to water is prevented, the clamping plate A 106 is slidingly connected with the bottom cover 107 through the clamping groove A 108, additional fixing effect is provided, the reset rod 503 is slidingly connected with the pressing arm 514 through the sliding groove, the magnetic ring 508 and the pin are combined, quick cutting and resetting of the circuit are achieved, the stability and safety of the plug are enhanced, and the plug is convenient for later maintenance and disassembly, and the defects in the prior art are effectively solved.

[0039] Embodiment 2, as shown in Figure 2 、 Figure 3 The inside of the bottom cover 107 is provided with a connecting rod 6, the connecting rod 6 is provided with a rotating rod 8 between the connecting rod 6, the surface of the rotating rod 8 is provided with a rotating block 9, the inner wall of the rotating block 9 is provided with a clamping pin 11, the connecting rod 6 is symmetrically distributed at the left and right ends in the inside of the bottom cover 107, the rotating block 9 is rotatably connected between the connecting rod 6 through the adjusting groove 7, the rotating block 9 rotates on the surface of the rotating rod 8 through the rotating groove 10, and the clamping pins 11 are uniformly distributed on the inner wall of the rotating block 9.

[0040] The effect achieved by the whole embodiment 2 is that firm fixing of the wire harness is achieved, the connecting rod 6 is symmetrically distributed at the left and right ends in the inside of the bottom cover 107, the surface of the rotating rod 8 is provided with the rotating block 9 and is rotatably connected with the connecting rod 6 through the adjusting groove 7, the rotating block 9 rotates on the surface of the rotating rod 8 through the rotating groove 10, and the clamping pins 11 are uniformly distributed on the inner wall of the rotating block 9, the reliability of the wire harness fixing is enhanced, the wire harness falling problem caused by vibration or pulling after long-time use is effectively prevented, and the overall stability and durability of the plug are improved.

[0041] Embodiment 3, according toFigure 4 , Figure 5 As shown, the bottom end of the bottom cover 107 is provided with a groove D12, the inside of the groove D12 is provided with a slot B13, the inside of the slot B13 is provided with a plate B14, the surface of the plate B14 is provided with a pad 15, and the bottom end of the plate B14 is provided with a cover 16. The plate B14 is slidably connected to the bottom cover 107 through the slot B13. The pads 15 are evenly distributed on the surface of the plate B14 and are slidably connected to the bottom cover 107 through the slot B13. The cover 16 is slidably connected to the bottom cover 107 through the groove D12.

[0042] The overall effect of embodiment 3 is as follows: it realizes secondary fixation of the wire harness. The card plate B14 is slidably connected to the bottom cover 107 through the card groove B13. The card pads 15 are evenly distributed on the surface. The cover 16 is slidably connected to the bottom cover 107 through the groove D12. It effectively prevents the wire harness from falling off after long-term use, and also enhances the overall stability and durability of the plug, making it convenient for later maintenance and disassembly operations.

[0043] The whole device works as follows: in use, the line is passed through the wire harness protection head 4, and fixed at the top of the elastic sheet 524, then the plug A539 is slid into the ground connection piece 536 through the groove C537, and the stop block 538 is inlaid at the top of the ground connection piece 536 through the groove C537, then the ground connection piece 536 is placed inside the fixed seat 532 through the groove B535, and placed on the right side of the tripping seat 511 through the limiting plate 540, finally the fixed seat 532 is pressed upwards corresponding to the bottom end of the upper tripping seat 511, so that the supporting rod B533 drives the fixed block B534 to slide upwards through the snap ring 531, when the fixed block B534 completely slides out of the inside of the snap ring 531, the fixed block B534 can be fixed at the bottom end of the tripping seat 511 through the supporting rod B533, then the resistance 529 is pressed upwards corresponding to the fixed plate 527, so that the resistance 529 slides upwards through the fixed plate 527, when the resistance 529 completely slides through the side block 528, the side block 528 can fix the resistance 529 at the bottom end of the tripping seat 511, finally the magnetic ring 508 is placed at the top of the tripping seat 511, and the tripping seat 511 is pressed upwards corresponding to the circuit board 501, so that the supporting rod A512 drives the fixed block A513 to slide upwards through the positioning groove A510, when the fixed block A513 completely slides through the positioning groove A510, the fixed block A513 can be fixed at the bottom end of the circuit board 501 through the supporting rod A512, at this time the pin B530 is connected together with the pin A509, and connected together with the elastic sheet 524, then the wire harness is pressed downwards corresponding to the rotating block 9, so that the rotating block 9 rotates downwards on the surface of the rotating rod 8 through the rotating groove 10, and at this time the rotating block 9 rotates in the inside of the connecting rod 6 through the adjusting groove 7, when the wire harness is pressed in the middle of the connecting rod 6, the clamping needle 11 in the inner wall of the rotating block 9 can fix the wire harness again at the right side of the bottom cover 107, at this time the wire harness protection head 4 slides downwards on the top of the bottom cover 107 through the limiting groove B3, and the plug A539 slides out of the bottom end of the bottom cover 107 through the plug B541 through the installation groove 109, then the top cover 101 is pinched and pressed downwards, so that the fixed rod 104 corresponds to the supporting column B110, and the fixed rod 104 slides downwards on the top end of the supporting column B110 through the fixed groove 111, when the clamping plate A106 slides into the inside of the bottom cover 107 through the clamping groove A108, the top cover 101 slides downwards on the top of the wire harness protection head 4 through the limiting groove A2, when the top cover 101 completely slides on the surface of the wire harness protection head 4 through the limiting groove A2, the circuit board 501 is fixed in the inside of the top cover 101, the supporting column A103 presses the circuit board 501, then the screw 113 is rotated corresponding to the threaded groove 105 through the groove A112, so that the screw 113 rotates upwards on the bottom end of the fixed rod 104 through the threaded groove 105,When the screw 113 is completely turned into the inside of the fixed rod 104 through the thread groove 105, the top cover 101 is firmly fixed on the top end of the bottom cover 107, the fixing of the plug assembly 1 is completed, then the clamping plate B14 is pressed upwards to make the clamping plate B14 drive the clamping pad 15 to slide upwards through the clamping groove B13 on the bottom end of the bottom cover 107, when the clamping plate B14 is completely slid out of the inside of the bottom cover 107, the clamping pad 15 fixes the clamping plate B14 through the clamping groove B13 on the bottom end of the bottom cover 107, and the protective cover 16 is completely embedded on the bottom end of the bottom cover 107 through the recess D12, when a short circuit occurs in the use process, the resistance 529 in the leakage protection assembly 5 can start the magnetic ring 508, the magnetic ring 508 is attracted by the connecting foot 518 under its own magnetic force, the connecting foot 518 slides in the inside of the pressure arm 514 through the sliding groove 516, and the locking piece 517 slides together, the locking piece 517 slides into the inside of the reset rod 503 through the inclined groove 504, at this time the spring B521 slides outwards in the inside of the trip coil 522 through the storage groove 523, the locking piece 517 is separated from the connecting head 542 on the top end of the plug B, the circuit is cut off, after the diagnosis is completed, the pressure block 506 is pressed downwards, the pressure block 506 slides downwards through the baffle 505, at this time the reset rod 503 slides downwards on the top end of the circuit board 501 through the sliding groove A502, and slides downwards on the top end of the pressure arm 514 through the sliding groove B515, at this time the reset rod 503 pushes the locking piece 517 outwards through the inclined groove 504, and makes the locking piece 517 recontact the connecting head 542, the contact 526 fixed on the top end of the elastic sheet 524 recontacts the bottom end of the connecting head 542, so that it can be normally used, after the pressing is completed, the pressure block 506 slides upwards through the baffle 505 under the elastic force of the spring A507, to complete the reset, so that it is more convenient to use next time.

[0044] Although the present application has been described in detail with reference to the foregoing embodiments, technical solutions recorded in the foregoing embodiments can be modified or some technical features can be replaced by equivalent ones by those skilled in the art, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A leakage current protection plug structure, characterized in that: Includes a plug assembly (1), and the plug assembly (1) is provided with a leakage protection component (5); The plug assembly (1) includes a top cover (101), inside which is a support block (102), inside which is a support post A (103), at the bottom end of the support post A (103) is a fixing rod (104), at the bottom end of the top cover (101) is a clamping plate A (106), at the bottom end of the top cover (101) is a bottom cover (107), inside which is a support post B (110), inside which is a screw (113), inside which is a wire harness protection head (4), inside which is a circuit board (501), inside which is a reset rod (503), and the wire harness... A magnetic ring (508) is provided at the bottom end of the circuit board (501). A trip seat (511) is provided at the bottom end of the circuit board (501). A support rod A (512) is provided at the top end of the trip seat (511). A fixing block A (513) is provided on the inner wall of the support rod A (512). A pressure arm (514) is provided at the top end of the trip seat (511). A locking piece (517) is provided on the left side of the pressure arm (514). A connecting foot (518) is provided on the right side of the locking piece (517). A locking block (519) is provided inside the locking piece (517). An iron core (520) is provided on the left side of the locking block (519). A spring B (521) is provided on the left side of the iron core (520). A trip coil (522) is provided on the left side of the iron core (520). The connecting foot (518) is slidably connected to the pressure arm (514) through the sliding groove (516), the locking block (519) is slidably connected to the locking piece (517), the iron core (520) is slidably connected to the locking piece (517), the end of the spring B (521) away from the iron core (520) is fixed to the inner wall of the trip coil (522), and the spring B (521) is slidably connected to the trip coil (522) through the storage groove (523); The trip seat (511) has a spring piece (524) at its top, a contact (526) at its top, a fixing plate (527) at its bottom, a side block (528) on the inner wall of the fixing plate (527), a resistor (529) in the middle of the fixing plate (527), a lead B (530) at the top of the resistor (529), a retaining ring (531) on the surface of the trip seat (511), and a fixing seat (532) at its bottom. A support rod B (533) is provided at the top of the fixed seat (532). A fixing block B (534) is provided on the inner wall of the support rod B (533). A grounding connection piece (536) is provided at the top of the fixed seat (532). A stop block (538) is provided inside the grounding connection piece (536). An insert piece A (539) is provided at the bottom of the stop block (538). A limit plate (540) is provided on the right side of the trip seat (511). An insert piece B (541) is provided at the bottom of the fixed seat (532). A connector (542) is provided at the top of the insert piece B (541). The contact (526) is fixed to the top of the spring piece (524) through the slot (525), the fixing block B (534) is slidably connected to the retaining ring (531), the support rod B (533) is slidably connected to the retaining ring (531), the grounding connection piece (536) is slidably connected to the fixing seat (532) through the groove B (535), the grounding connection piece (536) is slidably connected to the tripping seat (511) through the limiting plate (540), the stop block (538) is slidably connected to the grounding connection piece (536) through the groove C (537), and the insert B (541) is slidably connected to the bottom cover (107) through the mounting groove (109). The bottom cover (107) has a groove D (12) at its bottom end, a slot B (13) is provided inside the groove D (12), a card plate B (14) is provided inside the slot B (13), a card pad (15) is provided on the surface of the card plate B (14), and a cover (16) is provided at the bottom end of the card plate B (14).

2. The leakage protection plug structure according to claim 1, characterized in that: The card plate A (106) is slidably connected to the bottom cover (107) through the card slot A (108), the fixing rod (104) is slidably connected to the support column B (110) through the fixing groove (111), the screw (113) is rotatably connected to the support column B (110) through the groove A (112), the screw (113) is rotatably connected to the fixing rod (104) through the thread groove (105), the wire harness protection head (4) is slidably connected to the top cover (101) through the limiting groove A (2), and the wire harness protection head (4) is slidably connected to the bottom cover (107) through the limiting groove B (3).

3. The leakage protection plug structure according to claim 1, characterized in that: The reset rod (503) is slidably connected to the circuit board (501) through the slide groove A (502). The reset rod (503) has a slanted groove (504) on its left side. The reset rod (503) has a baffle (505) at its top. The reset rod (503) is slidably connected to the pressure arm (514) through the slide groove B (515). The baffle (505) has a pressure block (506) at its top. The baffle (505) has a spring A (507) at its bottom. The magnetic ring (508) has a pin A (509) at its top. The fixing block A (513) is slidably connected to the circuit board (501) through the positioning groove A (510).

4. The leakage protection plug structure according to claim 1, characterized in that: The bottom cover (107) is provided with a connecting rod (6) inside, and a rotating rod (8) is provided between the connecting rods (6). A rotating block (9) is provided on the surface of the rotating rod (8), and a jack (11) is provided on the inner wall of the rotating block (9).

5. The leakage protection plug structure according to claim 4, characterized in that: The connecting rod (6) is symmetrically distributed on the left and right ends inside the bottom cover (107). The rotating block (9) is rotatably connected to the connecting rod (6) through the adjusting groove (7). The rotating block (9) rotates on the surface of the rotating rod (8) through the rotating groove (10). The jack pin (11) is evenly distributed on the inner wall of the rotating block (9).

6. The leakage protection plug structure according to claim 1, characterized in that: The card plate B (14) is slidably connected to the bottom cover (107) through the card groove B (13). The card pad (15) is evenly distributed on the surface of the card plate B (14). The card pad (15) is slidably connected to the bottom cover (107) through the card groove B (13). The cover (16) is slidably connected to the bottom cover (107) through the groove D (12).

Citation Information

Patent Citations

  • Leakage protection plug

    CN220710779U

  • Antenna with anti-corrosion mounting structure

    CN221102392U