A leakage protector with fool-proof structure

Abstract

The present invention belongs to the technical field of electrical products, and discloses a leakage protector with an anti-foolproof structure, comprising a leakage protector body, an air circuit breaker and a rotatable interlocking handle arranged on the front of the air circuit breaker; the air circuit breaker is provided with a trigger-type anti-foolproof shielding mechanism, which comprises a segmented shielding cover and a linkage trigger component; the live wire wiring slot is provided with a temperature-sensing live wire automatic pull-out mechanism; through the above method, when leakage occurs, the leakage protector body rotates the interlocking handle on the air circuit breaker downward through the easy-to-install interlocking mechanism, and when the interlocking handle rotates, the segmented shielding cover will be driven to move through the linkage trigger component to completely shield the interlocking handle, thereby avoiding the situation where non-professionals mistakenly reset the interlocking handle; when spontaneous combustion occurs, the temperature-sensing live wire automatic pull-out mechanism will automatically pull the live wire out of the live wire wiring slot to avoid further increase in the fire.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical products, and in particular to a leakage protector with a fool-proof structure. Background Art

[0002] A leakage protector is a safety device used to detect leakage faults in circuits and quickly cut off power to prevent electric shock or electrical fires.

[0003] Chinese patent CN117976484B discloses an automatic reclosing leakage protector, which includes a leakage protector body, a vertically arranged power housing fixed on one side of the leakage protector body, and a plug rod fixed on the switch push rod of the leakage protector body. When the leakage protector body heats up and burns, the generated thick smoke is sucked into the circulating gas box, and the smoke concentration sensor in the air intake straight pipe detects the presence of thick smoke. At this time, the second drive motor reverses, and the gas is exhausted upward through the air intake straight pipe, and the air blocking cone block is pushed up, pushing out the sliding top pipe, so that the gas is discharged into the interior of the leakage protector body through the conductive top pipe. At the same time, the interior of the dry powder storage box is opened, and the dry powder is sprayed out through the powder spraying pipe, entering the interior of the leakage protector body along the air flow to extinguish the generated flames. However, the device still has the following problems:

[0004] After a leakage current causes the RCPD to trip, the line may still be in a faulty state. Manually resetting the device before thoroughly investigating the cause of the fault, especially by unprofessional personnel, can cause secondary electric shock or amplify the fault. Furthermore, blindly restoring power can mask the true fault point, interfering with maintenance and increasing the difficulty of troubleshooting.

[0005] Based on this, the present invention designs a leakage protector with a fool-proof structure to solve the above problems. Summary of the Invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a leakage protector with a fool-proof structure.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A leakage protector with a foolproof structure comprises a leakage protector body, an air circuit breaker and a rotatable interlocking handle arranged on the front of the air circuit breaker;

[0009] The air circuit breaker is provided with a trigger-type foolproof shielding mechanism, which includes a segmented shielding cover and a linkage trigger assembly. The segmented shielding cover is provided on the front of the air circuit breaker and is located above the interlocking handle. The linkage trigger assembly is installed on the left side wall of the air circuit breaker. The linkage trigger assembly is used to control the segmented shielding cover to completely shield the interlocking handle when the interlocking handle is triggered and falls due to leakage.

[0010] The air circuit breaker has symmetrical positions on both sides of the upper end thereof, with live wire connection slots and neutral wire connection slots for connecting to the external live wire and neutral wire; the live wire connection slots are provided with a temperature-sensitive live wire automatic pull-out mechanism that automatically pulls the live wire out of the live wire connection slot when the protector catches fire;

[0011] An easy-to-install interlocking mechanism is provided at one end of the leakage protector body close to the air circuit breaker and is used to link with the interlocking handle to trigger the rotation of the interlocking handle.

[0012] Furthermore, the linkage trigger assembly includes a linkage shaft, an outer sleeve, a connecting plate and a one-way linkage assembly. The linkage shaft is located on the left side of the air circuit breaker and passes through the side wall of the air circuit breaker and is fixedly connected to the interlocking handle. The rotation axes of the linkage shaft and the interlocking handle are collinear, so that the linkage shaft and the interlocking handle rotate synchronously; the outer sleeve is rotatably connected to the left side wall of the linkage shaft through a bearing, and the two ends of the connecting plate are respectively fixedly connected to the outer sleeve and the segmented shielding cover; a one-way linkage assembly is provided between the linkage shaft and the outer sleeve, which drives the outer sleeve to rotate synchronously when the linkage shaft rotates in a clockwise direction.

[0013] Furthermore, the one-way linkage assembly includes a ratchet, a bracket, a ratchet and a first spring. The ratchet is fixedly mounted on the inner edge of the outer sleeve, and a number of brackets are evenly fixedly mounted on the outer ring surface of the linkage shaft in a circular array. One end of the ratchet is hinged to the bracket, and a first spring is fixedly mounted between the other end of the ratchet and the bracket; the ratchet is engaged with the ratchet, and the ratchet extends to the outside of the outer sleeve.

[0014] Furthermore, a card block is fixedly mounted on one end of the outer plate away from the middle plate, a card slot is provided on the card block, and a locking structure is fixedly mounted on the lower end of the air circuit breaker and is locked with the card slot of the card block.

[0015] Furthermore, the temperature-sensing live wire automatic pulling-out mechanism includes a clamping and pulling-out component and a temperature-sensing drive component. A clamping and pulling-out component for clamping the live wire and pulling the live wire out of the live wire wiring slot is provided on the side of the live wire wiring slot, and a temperature-sensing drive component for providing power to the clamping and pulling-out component is provided in the cavity of the air circuit breaker.

[0016] Furthermore, the clamping and pulling-off assembly includes a fixed plate, a sliding pin, a clamping block and a lifting plate. The fixed plate and the lifting plate are respectively located on the front and rear sides of the live wire connection slot. The fixed plate is fixedly connected to the air circuit breaker, and the lifting plate is connected to the air circuit breaker in a limited sliding manner. The two clamping blocks are symmetrically arranged on the left and right sides of the lifting plate, and the clamping blocks can be connected to the lifting plate in a horizontal limited movement. A sliding groove is provided on the fixed plate, and a sliding pin is fixedly installed on the clamping block that is connected to the sliding groove in a limited sliding manner.

[0017] Furthermore, the slide groove is composed of a lower oblique groove and an upper vertical groove, and the oblique groove is arranged to be inclined toward the live wire connection groove.

[0018] Furthermore, the easy-to-install interlocking mechanism includes a linkage rod, a third spring, a circular plate and a drive plate. The tripping interlocking rod of the electromagnetic tripping device of the leakage protector body is slidingly connected with the linkage rod. The linkage rod is located in the air circuit breaker cavity and one end is fixedly installed with a circular plate. The third spring is sleeved on the outside of the linkage rod, and the two ends of the third spring are respectively fixedly connected to the linkage rod and the circular plate; when the third spring is in the natural state, the linkage rod is completely retracted into the tripping interlocking rod, and the tripping interlocking rod and the linkage rod are not exposed outside the leakage protector body; the drive plate is installed on the leakage protector body so as to be movably installed left and right, and the lower end of the drive plate abuts against the circular plate.

[0019] Compared with the prior art, the present invention has the following beneficial effects: 1. When leakage occurs, the leakage protector body rotates the interlocking handle on the air circuit breaker downward through an easy-to-install interlocking mechanism. When the interlocking handle rotates, the interlocking trigger assembly drives the segmented shielding cover to move, so that the segmented shielding cover completely blocks the interlocking handle, thereby preventing non-professionals from mistakenly resetting the interlocking handle; when the leakage protector body and the air circuit breaker spontaneously combust due to abnormalities causing excessive temperature, the temperature-sensing live wire automatic pull-out mechanism will automatically pull the live wire out of the live wire wiring slot to prevent the fire from further increasing.

[0020] 2. When the operation and maintenance personnel complete the troubleshooting work, they first control the locking structure to release the locking effect of the card block, and then pinch the extended part of the ratchet located on the outside of the outer sleeve to lift the segmented shielding cover. Release the ratchet to achieve the reset effect of the segmented shielding cover. When it is necessary to lift the interlocking handle, the ratchet will not block the movement of the ratchet, and the linkage shaft and the interlocking handle can rotate smoothly.

[0021] 3. By setting up an easy-to-install interlocking mechanism, when performing maintenance work on the leakage protector body or air circuit breaker, the operator only needs to disassemble the leakage protector body or air circuit breaker. In the case of limited space, such as in an electrical cabinet where a large number of electrical components have been installed, the installation of the entire leakage protector can also be facilitated. After the leakage protector body and the air circuit breaker are installed and aligned, the driving board controls the linkage rod to extend into the air circuit breaker, thereby realizing the interlocking driving effect of the linkage rod on the interlocking handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0023] Figure 1 The present invention is a three-dimensional leakage protector with a fool-proof structure Figure 1 .

[0024] Figure 2 The figure is a front view of a leakage protector with a fool-proof structure according to the present invention.

[0025] Figure 3 The present invention is a three-dimensional leakage protector with a fool-proof structure Figure 2 .

[0026] Figure 4 It is a sectional perspective view of the air circuit breaker of the present invention.

[0027] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0028] Figure 6 It is a three-dimensional diagram of the segmented shielding cover of the present invention.

[0029] Figure 7 The present invention is a three-dimensional leakage protector with a fool-proof structure Figure 3 .

[0030] Figure 8 It is a sectional perspective view of the leakage protector body of the present invention.

[0031] The numbers in the figure represent: 10, leakage protector body; 20, air circuit breaker; 21, live wire connection slot; 22, neutral wire connection slot; 23, interlocking handle; 3, trigger-type foolproof shielding mechanism; 31, segmented shielding cover; 311, inner plate; 312, middle plate; 313, outer plate; 32, linkage trigger assembly; 321, linkage shaft; 322, outer sleeve; 323, connecting plate; 324, block; 325, locking structure; 326, ratchet; 327, bracket; 328, locking mechanism; 329, locking mechanism; 330, locking mechanism; 331, locking mechanism; 332, locking mechanism; 333, locking mechanism; 334, locking mechanism; 335, locking mechanism; 336, locking mechanism; 337, locking mechanism; 338, locking mechanism; 339, locking mechanism; 340, locking mechanism; 341, locking mechanism; 342, locking mechanism; 343, locking mechanism; 344, locking mechanism; 345, locking mechanism; 346, locking mechanism; 347, locking mechanism; 348, locking mechanism; 349, locking mechanism; 350, locking mechanism; 351, locking mechanism; 352, locking mechanism; 353, locking mechanism; 354, locking mechanism; 355, locking mechanism; 356, locking mechanism; 357, locking mechanism; 358, locking mechanism; 359, locking mechanism; 360, locking mechanism; 361, locking mechanism; 362, locking mechanism; 363, locking mechanism; 364, locking mechanism; 365, locking mechanism; 366, locking mechanism; 367, locking mechanism; 368, locking mechanism; 369, locking mechanism; 370, locking mechanism; 371, locking 8. Ratchet; 329. First spring; 4. Temperature-sensitive live wire automatic pull-out mechanism; 41. Clamping and pulling assembly; 411. Fixed plate; 412. Sliding pin; 413. Clamping block; 414. Lifting plate; 42. Temperature-sensitive drive assembly; 421. Push rod; 422. Fixed cylinder; 423. Strong magnet; 424. Weak magnet; 425. Second spring; 5. Easy-to-install interlocking mechanism; 51. Disconnection interlocking rod; 52. Linkage rod; 53. Third spring; 54. Round plate; 55. Drive plate. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] The terms “left,” “right,” “front,” “back,” “up,” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0034] Example 1: In some embodiments, please refer to the accompanying drawings of the specification. Figures 1-4 , a leakage protector with a foolproof structure, comprising a leakage protector body 10, an air circuit breaker 20 and a rotatable interlocking handle 23 provided on the front of the air circuit breaker 20;

[0035] The air circuit breaker 20 is provided with a trigger-type foolproof shielding mechanism 3, which includes a segmented shielding cover 31 and a linkage trigger assembly 32. The segmented shielding cover 31 is provided on the front of the air circuit breaker 20 and is located above the interlocking handle 23. The linkage trigger assembly 32 is installed on the left side wall of the air circuit breaker 20. The linkage trigger assembly 32 is used to control the segmented shielding cover 31 to completely shield the interlocking handle 23 when a leakage phenomenon occurs and the interlocking handle 23 is triggered and falls. An alarm mark is provided on the front of the segmented shielding cover 31 to remind non-professionals not to manually reset it without authorization.

[0036] The air circuit breaker 20 has symmetrically disposed two sides of its upper end with live and neutral wire connection slots 21 and 22 for connecting to external live and neutral wires. The live wire connection slot 21 is provided with a temperature-sensitive live wire automatic disconnection mechanism 4 that automatically disconnects the live wire from the live wire connection slot 21 when the protector catches fire.

[0037] An easy-to-install interlocking mechanism 5 is provided at one end of the leakage protector body 10 close to the air circuit breaker 20 for interlocking with the interlocking handle 23 to trigger the rotation of the interlocking handle 23 .

[0038] In the present invention, when leakage occurs, the leakage protector body 10 rotates the interlocking handle 23 on the air circuit breaker 20 downward through the easy-to-install interlocking mechanism 5. When the interlocking handle 23 rotates, the interlocking trigger component 32 drives the segmented shielding cover 31 to move, so that the segmented shielding cover 31 completely blocks the interlocking handle 23, thereby preventing non-professionals from mistakenly resetting the interlocking handle 23; when the leakage protector body 10 and the air circuit breaker 20 spontaneously combust due to abnormalities causing excessive temperature, the temperature-sensing live wire automatic pull-out mechanism 4 will automatically pull the live wire out of the live wire wiring slot 21 to prevent the fire from further increasing.

[0039] See also Figure 6 The segmented shielding cover 31 is composed of an inner plate 311, an outer plate 313 and several intermediate plates 312 located between the inner plate 311 and the outer plate 313. A sliding groove is provided on the inner side of the inner plate 311, and a slider is fixedly installed on the outer side of the outer plate 313. A sliding groove is provided on the inner side of the intermediate plate 312, and a slider is fixedly installed on the outer side of the intermediate plate 312. Adjacent intermediate plates 312, intermediate plates 312 and inner plates 311, and intermediate plates 312 and outer plates 313 are connected in a limited sliding manner through sliders and sliding grooves; the inner plate 311, intermediate plates 312 and outer plates 313 are all located on the same circumference; the inner plate 311 is fixedly connected to the air circuit breaker 20;

[0040] See also Figure 3 and Figure 5 The linkage trigger assembly 32 includes a linkage shaft 321, an outer sleeve 322, a connecting plate 323 and a one-way linkage assembly. The linkage shaft 321 is located on the left side of the air circuit breaker 20 and passes through the side wall of the air circuit breaker 20 and is fixedly connected to the interlocking handle 23. The rotation axes of the linkage shaft 321 and the interlocking handle 23 are collinear, so that the linkage shaft 321 and the interlocking handle 23 rotate synchronously; the outer sleeve 322 is rotatably connected to the left side wall of the linkage shaft 321 through a bearing, and the two ends of the connecting plate 323 are fixedly connected to the outer sleeve 322 and the outer plate 313 respectively; a one-way linkage assembly is provided between the linkage shaft 321 and the outer sleeve 322, so that when the linkage shaft 321 rotates in the clockwise direction, the outer sleeve 322 will drive the synchronous rotation of the outer sleeve 322;

[0041] The one-way linkage assembly includes a ratchet 326, a bracket 327, a ratchet tooth 328, and a first spring 329. The ratchet 326 is fixedly mounted on the inner edge of the outer sleeve 322. A plurality of brackets 327 are evenly fixedly mounted on the outer annular surface of the linkage shaft 321 in a circumferentially equal row. One end of the ratchet tooth 328 is hinged to the bracket 327, and a first spring 329 is fixedly mounted between the other end of the ratchet tooth 328 and the bracket 327. The ratchet tooth 328 is engaged with the ratchet 326 and extends outward from the outer sleeve 322.

[0042] A block 324 is fixedly mounted on one end of the outer plate 313 away from the middle plate 312. The block 324 has a slot. A locking structure 325 is fixedly mounted on the lower end of the air circuit breaker 20 and is locked with the slot of the block 324. The locking structure 325 can be an electromagnetic lock, a spring lock, or the like. When the connecting plate 323 drives the outer plate 313 to rotate, the locking tongue of the locking structure 325 can be locked with the slot of the block 324.

[0043] In the present invention, when leakage occurs, the interlocking handle 23 will rotate and fall, and the interlocking handle 23 drives the interlocking shaft 321 to rotate synchronously. The interlocking shaft 321 drives the outer sleeve 322 to rotate synchronously through the ratchet 326 and the ratchet teeth 328, and then drives the outer plate 313 to rotate through the connecting plate 323 to achieve the shielding effect of the interlocking handle 23; when the segmented shielding cover 31 is fully unfolded, the locking tongue of the locking structure 325 and the card slot of the card block 324 are locked, preventing the segmented shielding cover 31 from being directly pulled up, further improving the anti-foolproof effect of the segmented shielding cover 31;

[0044] When the operation and maintenance personnel complete the troubleshooting work, they first control the locking structure 325 to release the locking effect of the block 324, and then pinch the extended part of the ratchet 328 located on the outside of the outer sleeve 322 to lift the segmented shielding cover 31. Loosening the ratchet 328 can achieve the reset effect of the segmented shielding cover 31, and when it is necessary to lift the interlocking handle 23, the ratchet 326 will not block the movement of the ratchet 328, and the linkage shaft 321 and the interlocking handle 23 can rotate smoothly.

[0045] See also Figure 4 The temperature-sensitive live wire automatic pulling-out mechanism 4 includes a clamping and pulling-out component 41 and a temperature-sensitive driving component 42. The side of the live wire connection slot 21 is provided with a clamping and pulling-out component 41 for clamping the live wire and pulling the live wire out of the live wire connection slot 21. The cavity of the air circuit breaker 20 is provided with a temperature-sensitive driving component 42 for providing power to the clamping and pulling-out component 41.

[0046] The clamping and pulling assembly 41 includes a fixed plate 411, a sliding pin 412, a clamping block 413, and a lifting plate 414. The fixed plate 411 and the lifting plate 414 are respectively located on the front and rear sides of the live wire connection slot 21. The fixed plate 411 is fixedly connected to the air circuit breaker 20, and the lifting plate 414 is slidingly connected to the air circuit breaker 20. The two clamping blocks 413 are symmetrically arranged on the left and right sides of the lifting plate 414, and the clamping blocks 413 are connected to the lifting plate 414 in a horizontally limited and movable manner.

[0047] A sliding groove is provided on the fixing plate 411, and a sliding pin 412 is fixedly mounted on the clamping block 413 and is in limited sliding connection with the sliding groove;

[0048] The slide groove is composed of a lower oblique groove and an upper vertical groove, and the oblique groove is arranged to be inclined toward the live wire connection groove 21. When the lifting plate 414 moves vertically upward, the sliding pin 412 first slides in the oblique groove, causing the two clamping blocks 413 to move toward each other. When the sliding pin 412 slides in the vertical groove, the clamping blocks 413 move vertically upward.

[0049] The temperature-sensing drive assembly 42 includes a push rod 421, a fixed cylinder 422, a strong magnet 423, a weak magnet 424 and a second spring 425. The fixed cylinder 422 is fixedly installed in the cavity of the air circuit breaker 20. A weak magnet 424, a second spring 425 and a strong magnet 423 are sequentially arranged in the fixed cylinder 422 from top to bottom. The strong magnet 423 and the weak magnet 424 are both slidably connected to the inner wall of the fixed cylinder 422. The weak magnet 424 is fixedly connected to the bottom of the fixed cylinder 422. The two ends of the second spring 425 are respectively fixedly connected to the strong magnet 423 and the weak magnet 424; the lower end of the push rod 421 is fixedly connected to the strong magnet 423, and the upper end of the push rod 421 is fixedly connected to the lifting plate 414;

[0050] In the present invention, when the temperature inside the leakage protector body 10 and the air circuit breaker 20 continues to rise until it reaches the Curie temperature of the strong magnet 423, the strong magnet 423 is bounced upward by the second spring 425, so that the lifting plate 414 is pushed upward by the push rod 421. During the vertical upward movement of the lifting plate 414, the clamping block 413, in cooperation with the sliding pin 412 and the sliding groove, first clamps and fixes the live wire, and then pulls the live wire upward from the live wire wiring groove 21 to pull the live wire out. In this way, when the leakage protector body 10 and the air circuit breaker 20 suffer abnormal temperature loss, the live wire is automatically separated from the live wire wiring groove 21 to prevent the possibility of further spread of the fire.

[0051] See also Figure 2 、 Figure 7 and Figure 8The easy-to-install interlocking mechanism 5 includes a linkage rod 52, a third spring 53, a circular plate 54 and a drive plate 55. The tripping interlocking rod 51 of the electromagnetic tripping device of the leakage protector body 10 is limitedly slidably connected with the linkage rod 52. One end of the linkage rod 52 located in the cavity of the air circuit breaker 20 is fixedly mounted with a circular plate 54. The third spring 53 is sleeved on the outside of the linkage rod 52, and the two ends of the third spring 53 are respectively fixedly connected to the linkage rod 52 and the circular plate 54; when the third spring 53 is in the natural state, the linkage rod 52 is completely retracted into the tripping interlocking rod 51, and the tripping interlocking rod 51 and the linkage rod 52 are not exposed outside the leakage protector body 10;

[0052] The driving plate 55 is installed on the leakage protector body 10 so as to be movable left and right. The lower end of the driving plate 55 abuts against the circular plate 54, and the upper end of the driving plate 55 and the leakage protector body 10 are provided with matching screw holes. When the screws are installed in the screw holes to fix the driving plate 55 and the leakage protector body 10 relatively, the third spring 53 is compressed, and the left end of the linkage rod 52 extends to the outside of the leakage protector body 10, which is used to cooperate with the linkage handle 23 to control the rotation of the linkage handle 23.

[0053] By providing an easy-to-install interlocking mechanism 5, when performing maintenance work on the leakage protector body 10 or the air circuit breaker 20, the operator only needs to disassemble the leakage protector body 10 or the air circuit breaker 20. In the case of limited space, such as in an electrical cabinet where a large number of electrical components have been installed, the installation of the entire leakage protector can also be facilitated. After the leakage protector body 10 and the air circuit breaker 20 are installed and aligned, the driving plate 55 is used to control the linkage rod 52 to extend into the air circuit breaker 20, thereby realizing the interlocking driving effect of the linkage rod 52 on the interlocking handle 23.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A leakage protector with a foolproof structure, comprising a leakage protector body (10), an air circuit breaker (20), and a rotatable interlocking handle (23) arranged on the front of the air circuit breaker (20), characterized in that: The air circuit breaker (20) is provided with a trigger-type foolproof shielding mechanism (3), the trigger-type foolproof shielding mechanism (3) comprising a segmented shielding cover (31) and a linkage triggering assembly (32), the segmented shielding cover (31) being provided on the front of the air circuit breaker (20) and being located on the upper side of the interlocking handle (23), the linkage triggering assembly (32) being installed on the left side wall of the air circuit breaker (20), and the linkage triggering assembly (32) being used to control the segmented shielding cover (31) to completely shield the interlocking handle (23) when a leakage phenomenon occurs and the interlocking handle (23) is triggered to cause the interlocking handle (23) to fall; A live wire connection slot (21) and a neutral wire connection slot (22) for connecting to an external live wire and neutral wire are provided at symmetrical positions on both sides of the upper end of the air circuit breaker (20); a temperature-sensitive live wire automatic pulling-out mechanism (4) is provided on the live wire connection slot (21) for automatically pulling the live wire out of the live wire connection slot (21) when the protector catches fire; An easy-to-install interlocking mechanism (5) is provided at one end of the leakage protector body (10) close to the air circuit breaker (20) for interlocking with the interlocking handle (23) to trigger the rotation of the interlocking handle (23).

2. The leakage protector with fool-proof structure according to claim 1, characterized in that: The linkage trigger assembly (32) comprises a linkage shaft (321), an outer sleeve (322), a connecting plate (323) and a one-way linkage assembly. The linkage shaft (321) is located on the left side of the air circuit breaker (20) and passes through the side wall of the air circuit breaker (20) and is fixedly connected to the interlocking handle (23). The rotation axes of the linkage shaft (321) and the interlocking handle (23) are collinear, so that the linkage shaft (321) and the interlocking handle (23) rotate synchronously. The outer sleeve (322) is rotatably connected to the left side wall of the linkage shaft (321) through a bearing. The two ends of the connecting plate (323) are respectively fixedly connected to the outer sleeve (322) and the segmented shielding cover (31). A one-way linkage assembly is provided between the linkage shaft (321) and the outer sleeve (322), so that when the linkage shaft (321) rotates in a clockwise direction, the outer sleeve (322) is driven to rotate synchronously.

3. The leakage protector with foolproof structure according to claim 2, characterized in that: The one-way linkage assembly includes a ratchet (326), a bracket (327), a ratchet (328) and a first spring (329), wherein the ratchet (326) is fixedly mounted on the inner edge of the outer sleeve (322), and a plurality of brackets (327) are evenly fixedly mounted on the outer annular surface of the linkage shaft (321) in a circumferentially equal row, one end of the ratchet (328) is hinged to the bracket (327), and a first spring (329) is fixedly mounted between the other end of the ratchet (328) and the bracket (327); the ratchet (328) is engaged with the ratchet (326), and the ratchet (328) extends toward the outside of the outer sleeve (322).

4. The leakage protector with fool-proof structure according to claim 3, characterized in that: The segmented shielding cover (31) is composed of an inner plate (311), an outer plate (313), and a plurality of intermediate plates (312) located between the inner plate (311) and the outer plate (313); a sliding groove is provided on the inner side of the inner plate (311); a slider is fixedly installed on the outer side of the outer plate (313); a sliding groove is provided on the inner side of the intermediate plate (312); a slider is fixedly installed on the outer side of the intermediate plate (312); adjacent intermediate plates (312), intermediate plates (312) and inner plates (311), and intermediate plates (312) and outer plates (313) are connected in a limited sliding manner via the slider and the sliding groove; the inner plate (311), the intermediate plate (312), and the outer plate (313) are all located on the same circumference; the inner plate (311) is fixedly connected to the air circuit breaker (20); A clamping block (324) is fixedly mounted on one end of the outer plate (313) away from the middle plate (312), a clamping slot being provided on the clamping block (324), and a locking structure (325) is fixedly mounted on the lower end of the air circuit breaker (20) and is locked with the clamping slot of the clamping block (324).

5. The leakage protector with fool-proof structure according to claim 4, characterized in that: The temperature-sensitive live wire automatic pulling-out mechanism (4) comprises a clamping and pulling-out assembly (41) and a temperature-sensitive driving assembly (42); a clamping and pulling-out assembly (41) for clamping the live wire and pulling the live wire out of the live wire wiring slot (21) is provided on a side of the live wire wiring slot (21); and a temperature-sensitive driving assembly (42) for providing power to the clamping and pulling-out assembly (41) is provided in the cavity of the air circuit breaker (20).

6. The leakage protector with fool-proof structure according to claim 5, characterized in that: The clamping and pulling assembly (41) includes a fixed plate (411), a sliding pin (412), a clamping block (413) and a lifting plate (414). The fixed plate (411) and the lifting plate (414) are respectively located at the front and rear sides of the live wire connection slot (21). The fixed plate (411) is fixedly connected to the air circuit breaker (20), and the lifting plate (414) is connected to the air circuit breaker (20) in a limited sliding manner. The two clamping blocks (413) are symmetrically arranged on the left and right sides of the lifting plate (414), and the clamping blocks (413) are connected to the lifting plate (414) in a horizontal limited movable manner. A sliding slot is provided on the fixed plate (411), and a sliding pin (412) is fixedly installed on the clamping block (413) and is connected to the sliding slot in a limited sliding manner.

7. The leakage protector with fool-proof structure according to claim 6, characterized in that: The chute is composed of a lower oblique groove and an upper vertical groove, and the oblique groove is arranged to be inclined toward the live wire connection groove (21).

8. The leakage protector with fool-proof structure according to claim 7, characterized in that: The easy-to-install interlocking mechanism (5) comprises a interlocking rod (52), a third spring (53), a circular plate (54) and a driving plate (55); the interlocking rod (52) is limitedly slidably connected to the trip interlocking rod (51) of the electromagnetic tripping device of the leakage protector body (10); the interlocking rod (52) is fixedly mounted on one end of the interlocking rod (52) located in the cavity of the air circuit breaker (20); the third spring (53) is sleeved on the outside of the interlocking rod (52), and the two ends of the third spring (53) are respectively fixedly connected to the interlocking rod (52) and the circular plate (54); in the natural state of the third spring (53), the interlocking rod (52) is completely retracted into the trip interlocking rod (51), and neither the trip interlocking rod (51) nor the interlocking rod (52) is exposed outside the leakage protector body (10); the driving plate (55) is mounted on the leakage protector body (10) so as to be movable left and right, and the lower end of the driving plate (55) abuts against the circular plate (54).

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