Transformer with electric leakage alarm function

Abstract

The invention relates to the technical field of transformers, and discloses a transformer with an electric leakage alarm function, which comprises a shell, a trigger box is fixedly mounted at the top of the shell, and a power restoration assembly capable of restoring power supply and ensuring power restoration interval time after electric leakage tripping is arranged in the trigger box. By arranging the power restoration assembly, when the leakage protector triggers tripping and an alarm lamp at the top of a trigger box gives an alarm, a push block is matched with a clamping plate arranged at the top of the push block to drive a copper rod to be slowly in butt joint with a power-on connector, and due to transmission delay between a threaded rod and a threaded sliding plate as well as between a threaded rod and a connecting spring, the power-on connector can be quickly connected; according to the utility model, the electric leakage protector can realize power restoration after a period of time after a tripping phenomenon occurs, enough time is provided for a circuit user to get rid of danger and timely response, and the copper rod can be kept in a relatively stable state after being butted with an electrified connector through elastic pressing of a subsequent connecting spring, so that subsequent safe power supply of the circuit is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of transformers, in particular to a transformer with a leakage alarm function. Background Art

[0002] Most of today's transformers are installed outdoors and are exposed to long-term erosion from wind and rain. After long-term use, the interface terminal connections of the transformers will age, which may cause the risk of leakage at the connections. Most of today's transformers use leakage protectors to implement leakage protection functions and trigger leakage alarms.

[0003] According to a transformer with leakage protection function disclosed (Announcement No.: CN113178307B), in the above application, a switching mechanism and a toggle mechanism are provided to perform power-on operation, and while switching, the rubber plate presses the button to make the alarm sound, and transmit the signal to the maintenance system to inform the maintenance personnel to perform timely maintenance, which effectively prevents the port from stopping working when the leakage protector is triggered, thereby affecting the residents who use electricity in the surrounding area, reducing the ease of use and applicability, and affecting the normal operation of the transformer.

[0004] However, in actual use of the above-mentioned equipment, the toggle switch of the leakage protector will directly trigger the power transmission structure after tripping. Although it can ensure the power supply demand of the entire circuit, when leakage occurs, it is generally caused by grounding of equipment or joints in the circuit. The direct and rapid power transmission makes the subsequent power use of the circuit still have safety hazards, and it is impossible to give users enough reaction time to protect electrical equipment. In view of this, we propose a transformer with a leakage alarm function. Summary of the invention

[0005] The object of the present invention is to provide a transformer with a leakage alarm function to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a transformer with a leakage alarm function, comprising a shell, a trigger box fixedly installed on the top of the shell, an alarm light arranged on the top of the trigger box, a leakage protector fixedly installed on the inner wall of the trigger box, a dial block movably connected to the side wall of the leakage protector, a U-shaped limit seat fixedly installed on the bottom inner wall of the trigger box, a power restoration component which can restore power supply and ensure the power restoration interval time after leakage tripping is arranged inside the trigger box, a push block is slidably installed on the bottom inner wall of the trigger box, a copper rod is fixedly installed on the top of the push block through a splint, a stop assembly which can prevent the push block from retreating after temporary power supply and thus causing unstable power supply is arranged on the bottom inner wall of the trigger box, and a lock assembly which can realize its stable circuit connection is arranged at the end of the copper rod.

[0007] Preferably, the power-recovery assembly includes a hinged rod, the top end of the hinged rod is hinged on the end side wall of the shift block, the bottom end of the hinged rod is hinged with a gear rod, the gear rod is slidably mounted on the bottom inner wall of the trigger box, a transmission gear is rotatably mounted on the inner wall of the trigger box, a driving bevel gear is coaxially fixedly mounted on the transmission gear, a mounting plate is fixedly mounted on the bottom inner wall of the trigger box, a threaded rod is rotatably mounted on the side wall of the mounting plate, a driven bevel gear is penetrated and fixedly mounted on the threaded rod, a threaded slide is threadedly connected to the outer wall of the threaded rod, and a connecting spring is fixedly connected to the side wall of the threaded slide.

[0008] Preferably, the shift block is arranged in an L shape, and a hinged seat is provided on the side wall of the shift block and is movably connected to the side wall of the leakage protector. An arc-shaped limit groove matching the end of the shift block is provided on the outer wall of the U-shaped limit seat close to the leakage protector. When the leakage protector is in the initial state, one end of the shift block is located inside the arc-shaped limit groove, and the bottom of the arc-shaped limit groove is arranged to be smooth, thereby facilitating the downward swing of the shift block.

[0009] Preferably, there are two groups of splints, and both groups of splints are arranged on the top outer wall of the pushing block. At the same time, the splints are made of insulating material. When the pushing block is displaced in the horizontal direction, the splints drive the copper rod to move synchronously.

[0010] Preferably, the backstop assembly includes a limiting tooth, a rectangular groove is provided on the bottom inner wall of the push block, the limiting tooth is provided on the top inner wall of the rectangular groove, a fixing seat is fixedly installed on the bottom inner wall of the trigger box, a push plate is slidably installed on the inner wall of the fixing seat, a guide plate is provided on the lower surface of the push plate, a return spring is fixedly connected between the guide plate and the inner wall of the fixing seat, a rotating rod is rotatably installed on the inner wall of the fixing seat, the rotating rod passes through and is fixedly installed with the backstop plate, a volute spring is sleeved on the arc-shaped outer wall of the rotating rod, an arc groove is provided on the inner wall of the push plate, a through groove is provided on the inner wall of the backstop plate, and a guide rod is fixedly installed on the inner wall of the through groove.

[0011] Preferably, the cross-section of the limiting tooth is set in a right-angled triangle, and the inclined surface of the limiting tooth faces the side of the leakage protector. The width of the fixed seat is adapted to the width of the rectangular groove, so as to guide and limit the movement of the push block. A circular groove with a diameter larger than the outer diameter of the spiral spring is provided on the inner wall of the fixed seat, and the two ends of the spiral spring are respectively fixedly connected to the arc-shaped outer wall of the rotating rod and the bottom inner wall of the circular groove, so that the rotating rod is always subjected to the reverse rotation of the spiral spring when the stop plate rotates, thereby realizing the movement trend of resetting.

[0012] Preferably, the height of the penetration groove is greater than that of the push plate, and the guide rod is arranged inside the arc groove, so that the backstop plate can rotate with the rotating rod as the rotation center without being interfered by the movement of the push plate.

[0013] Preferably, the lock assembly includes a transmission rod, the end of the transmission rod is hinged on the side wall of the U-shaped limit seat, the end of the transmission rod away from the U-shaped limit seat is hinged with a U-shaped piece, the inner wall of the trigger box is fixedly mounted with a bottom plate, the upper surface of the bottom plate is slidably mounted with an arc-shaped copper sheet, the U-shaped piece is slidably connected to the outer wall of the arc-shaped copper sheet, the end of the copper rod passes through and is fixedly mounted with a circular plate, the inner wall of the circular plate is provided with a notch groove, the height of the notch groove is adapted to the thickness of the transmission rod, the inner wall of the notch groove is fixedly mounted with a cylinder, and the inner wall of the transmission rod is provided with a guide groove.

[0014] Preferably, a docking assembly is provided inside the trigger box to ensure the electrical locking effect of the end of the copper rod, and the docking assembly includes a transmission plate, which is fixedly mounted on the outer wall of the copper rod, a connecting rod is fixedly mounted on the side wall of the transmission plate, a guide ball is fixedly mounted on the lower surface of one end of the connecting rod away from the transmission plate, a mounting rod is fixedly mounted on the inner wall of the trigger box, a docking tube is rotatably mounted on the side wall of the mounting rod, a spiral chute is opened on the arc-shaped outer wall of the docking tube, the guide ball is arranged inside the spiral chute, and a rubber strip is provided on the inner surface of the docking tube.

[0015] Preferably, the docking tube includes a tube body made of insulating material and a copper ring arranged inside the tube body, the copper ring is matched with the outer surface of the copper rod, so that the copper rod can fit into the copper ring when inserted into the inside of the docking tube, thereby realizing the conduction of the circuit, and a storage port matched with the rubber strip is opened on the arc-shaped inner surface of the docking tube, and the inside of the rubber strip is hollow so that it can shrink and deform when it is compressed, and the rubber strip is arranged in a large-pitch spiral along the arc-shaped inner surface of the docking tube.

[0016] Compared with the prior art, the present invention provides a transformer with a leakage alarm function, which has the following beneficial effects: 1. The transformer with leakage alarm function is provided with a power restoration component. When the leakage protector is triggered to "trip" and the alarm light on the top of the trigger box is alarmed, the dial block rotates clockwise, and cooperates with the transmission of the transmission component, so that the push block cooperates with the clamping plate set on its top to drive the copper rod to slowly dock with the power-on connector. Due to the delay in transmission between the threaded rod, the threaded slide plate and the connecting spring, the power will be restored after a period of time after the leakage protector "trips", giving the circuit user enough time to escape from danger and respond in time, and through the subsequent elastic force suppression of the connecting spring, the copper rod can maintain a relatively stable state after docking with the power-on connector, thereby ensuring the subsequent safe power supply of the circuit and avoiding damage to electrical equipment due to power failure.

[0017] 2. The transformer with leakage alarm function is provided with a backstop assembly. When the push block moves to the right in the horizontal direction along the inner wall of the trigger box, the limiting tooth will push the backstop plate as the push block moves. Due to the setting of the arc groove and the guide rod, the backstop plate will not interfere with the movement of the push block. After the limiting tooth passes over the backstop plate, due to the setting of the volute spring, the rotating rod drives the backstop plate to reset, so that the push block is interfered with and blocked when it has a tendency to move to the left in the horizontal direction, thereby ensuring the stability of the circuit connection after the copper rod is connected, thereby ensuring the safety of electricity use.

[0018] 3. The transformer with leakage alarm function is provided with a lock assembly. When the copper rods are butted, due to the sliding connection between the U-shaped piece and the arc-shaped copper sheet, a lever effect is formed between the transmission rod and the cylinder. As the copper rod moves closer to the center side of the arc-shaped copper sheet, under the restriction of the cylinder and the guide groove, the two groups of arc-shaped copper sheets on the bottom plate approach each other and are finally clamped on the outer side of the end of the copper rod, thereby realizing the connection of the circuit and the power supply again after the leakage protector is disconnected. In addition, the wrapping effect of the two groups of arc-shaped copper sheets makes the circuit connection more stable, avoiding the occurrence of unstable power supply.

[0019] 4. The transformer with leakage alarm function is provided with a docking assembly. When the copper rods are docked, due to the movement of the transmission plate, the connecting rod pushes the guide ball, and with the guidance of the spiral chute, the docking tube is continuously rotated when the copper rod is inserted, so as to reduce the obstruction of the rubber strip to the entry of the copper rod. Finally, after the docking is completely achieved, the rubber strip is attached to the surface of the copper rod to provide considerable resistance, thereby ensuring the connection stability between the copper rod and the docking tube, thereby ensuring the stable power supply of the power circuit and ensuring the safety of electricity use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the trigger box of the present invention; Figure 3 It is a schematic diagram of a partially enlarged structure of the power recovery component of the present invention; Figure 4 It is a schematic diagram of the structure of the leakage protector and the U-shaped limit seat of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the push block of the present invention; Figure 6 It is a schematic diagram of the structure of the backstop assembly of the present invention; Figure 7 This is a schematic diagram of the lock assembly structure of the present invention; Figure 8 It is a schematic diagram of a partial three-dimensional structure of the lock assembly of the present invention; Fig. 9 This is a schematic diagram of the structure of the docking assembly in the second embodiment of the present invention; Fig.10 It is a schematic diagram of the cross-sectional structure of the docking tube in the second embodiment of the present invention.

[0021] In the figure: 1, housing; 2, trigger box; 3, leakage protector; 4, shift block; 5, U-shaped limit seat; 6, re-powering assembly; 61, hinged rod; 62, gear rod; 63, transmission gear; 64, active bevel gear; 65, threaded rod; 66, driven bevel gear; 67, threaded slide plate; 68, connecting spring; 69, push block; 610, copper rod; 7, backstop assembly; 71, limit tooth; 72, fixed seat; 73, push plate; 74, re-powering assembly Position spring; 75, rotating rod; 76, stop plate; 77, scroll spring; 78, arc groove; 79, guide rod; 8, lock assembly; 81, transmission rod; 82, U-shaped piece; 83, arc copper sheet; 84, bottom plate; 85, round plate; 86, cylinder; 87, guide groove; 9, docking assembly; 91, transmission plate; 92, connecting rod; 93, guide ball; 94, mounting rod; 95, docking tube; 96, spiral chute; 97, rubber strip. DETAILED DESCRIPTION Example

[0022] like Figure 1-Figure 8 As shown, the present invention provides a technical solution: a transformer with a leakage alarm function, comprising a shell 1, a trigger box 2 is fixedly installed on the top of the shell 1, a leakage protector 3 is fixedly installed on the inner wall of the trigger box 2, a shift block 4 is movably connected to the side wall of the leakage protector 3, a U-shaped limit seat 5 is fixedly installed on the bottom inner wall of the trigger box 2, and a power restoration component 6 is arranged inside the trigger box 2 for restoring power supply and ensuring the power restoration interval time after leakage tripping, and the power restoration component 6 includes a hinged rod 61, a gear rod 62, a transmission gear 63, an active bevel gear 64, a threaded rod 65, a driven bevel gear 66, a threaded slide plate 67, a connecting spring 68, a push block 69 and a copper rod 610.

[0023] In one embodiment of the present invention, the top end of the hinged rod 61 is hinged on the end side wall of the shift block 4, the bottom end of the hinged rod 61 is hinged with a gear rod 62, the gear rod 62 is slidably installed on the bottom inner wall of the trigger box 2, a transmission gear 63 is rotatably installed on the inner wall of the trigger box 2, and an active bevel gear 64 is coaxially fixedly installed on the transmission gear 63, a mounting plate is fixedly installed on the bottom inner wall of the trigger box 2, a threaded rod 65 is rotatably installed on the side wall of the mounting plate, a driven bevel gear 66 is penetrated and fixedly installed on the threaded rod 65, a threaded slide 67 is threadedly connected to the outer wall of the threaded rod 65, and a connecting spring 68 is fixedly connected to the side wall of the threaded slide 67, a push block 69 is slidably installed on the bottom inner wall of the trigger box 2, and a copper rod 610 is fixedly installed on the top of the push block 69.

[0024] Furthermore, an alarm light is provided on the top of the trigger box 2, and the alarm light is connected to the leakage protector 3, and is turned on after the leakage protector 3 is powered off to remind the user. At the same time, the shift block 4 is arranged in an L shape, and the shift block 4 is movably connected to the side wall of the leakage protector 3 with a hinged seat. After the leakage protector 3 is triggered, the shift block 4 will rotate counterclockwise, which is the "tripping" phenomenon of the leakage protector 3. In addition, an arc-shaped limit groove that is compatible with the end of the shift block 4 is provided on the outer wall of the U-shaped limit seat 5 close to the leakage protector 3. When the leakage protector 3 is in the initial state, one end of the shift block 4 is inside the arc-shaped limit groove, and the bottom of the arc-shaped limit groove It is set to be smooth so as to facilitate the downward swinging of the shift block 4. Specifically, the hinge point of the articulated rod 61 and the shift block 4 is located at the end of the shift block 4 away from the leakage protector 3. When the leakage protector 3 is triggered to "trip", the rotation of the shift block 4 drives the top end of the articulated rod 61 to rotate, so that the articulated rod 61 generates a pulling force to the right on the gear rod 62 in the horizontal direction. Specifically, there are two groups of articulated rods 61, gear rods 62 and transmission gears 63, and the two groups of articulated rods 61, gear rods 62 and transmission gears 63 are symmetrically arranged on both sides of the central axis of the trigger box 2 with the vertical central axis of the trigger box 2 as the symmetry axis, thereby ensuring the stability of the transmission of the power-recovery component 6.

[0025] Specifically, the driven bevel gear 66 meshes with the active bevel gear 64 to realize transmission. When the gear rod 62 drives the transmission gear 63 to rotate, the active bevel gear 64 cooperates with the rotation to drive the driven bevel gear 66 to rotate, thereby driving the threaded rod 65 to rotate. Furthermore, the threaded slide plate 67 is slidably connected to the bottom inner wall of the trigger box 2, thereby guiding and restricting the movement of the threaded slide plate 67. Specifically, the threaded slide plate 67 can only move in the horizontal direction along the bottom inner wall of the trigger box 2. At the same time, the two ends of the connecting spring 68 are fixedly connected to the threaded slide plate 67 and the end outer wall of the push block 69 respectively. In addition, a circular hole with a diameter larger than the outer diameter of the threaded rod 65 is opened on the inner wall of the push block 69 to To avoid movement interference between the push block 69 and the threaded rod 65, at the same time, two groups of clamps are arranged on the top of the push block 69, and the copper rod 610 is passed through the inner walls of the two groups of clamps. At the same time, the clamps are made of insulating material. When the push block 69 is displaced in the horizontal direction, the clamps drive the copper rod 610 to move synchronously. The interior of the trigger box 2 is provided with an energized connector that is compatible with the end of the copper rod 610. After it contacts the end of the copper rod 610, temporary power supply of the original circuit is realized. Specifically, one end of the copper rod 610 away from the leakage protector 3 is connected to the internal circuit of the shell 1, so that after the leakage protector 3 is triggered to "trip", the copper rod 610 can be connected to the energized connector to power the circuit connected to the shell 1.

[0026] Specifically, while the leakage protector 3 triggers the "trip" and the alarm light on the top of the trigger box 2 sounds, the dial block 4 rotates clockwise. At this time, due to the drive of the hinged rod 61, the gear rod 62 slides horizontally toward the side of the leakage protector 3, thereby driving the transmission gear 63 to rotate, and cooperates with the active bevel gear 64 and the driven bevel gear 66 to drive the threaded rod 65 to rotate. At this time, under the transmission of the threaded slide plate 67, the connecting spring 68 is cooperated to push the push block 69 to move horizontally close to the side of the leakage protector 3. The push block 69 cooperates with the clamping plate set on its top to drive the copper rod 610 to slowly connect with the power-on connector. Due to the transmission delay between the threaded rod 65, the threaded slide plate 67 and the connecting spring 68, the leakage protector 3 will not be restored until a period of time after the "tripping" phenomenon occurs, giving the circuit user enough time to escape from danger and respond in time. In addition, through the subsequent elastic pressure of the connecting spring 68, the copper rod 610 can maintain a relatively stable state after connecting with the power-on connector, thereby ensuring the subsequent safe power supply of the circuit and avoiding damage to electrical equipment due to power outages.

[0027] In addition, a backstop assembly 7 is provided on the bottom inner wall of the trigger box 2 to prevent the push block 69 from retreating after temporary power supply and thus causing unstable power supply. The backstop assembly 7 includes a limiting tooth 71, a rectangular groove is provided on the bottom inner wall of the push block 69, and the limiting tooth 71 is provided on the top inner wall of the rectangular groove. A fixing seat 72 is fixedly installed on the bottom inner wall of the trigger box 2, and a push plate 73 is slidably installed on the inner wall of the fixing seat 72. A guide plate is provided on the lower surface of the push plate 73, and a reset spring 74 is fixedly connected between the guide plate and the inner wall of the fixing seat 72. A rotating rod 75 is rotatably installed on the inner wall of the fixing seat 72, and a backstop plate 76 is penetrated and fixedly installed on the rotating rod 75. A volute spring 77 is sleeved on the arc-shaped outer wall of the rotating rod 75, an arc groove 78 is provided on the inner wall of the push plate 73, a through groove is provided on the inner wall of the backstop plate 76, and a guide rod 79 is fixedly installed on the inner wall of the through groove.

[0028] Specifically, the number of limiting teeth 71 is set in several groups, and the several groups of limiting teeth 71 are evenly distributed on the top inner wall of the rectangular groove in a linear array, and the cross-section of the limiting teeth 71 is set in a right triangle, and the inclined surface of the limiting teeth 71 faces the side of the leakage protector 3. At the same time, the width of the fixing seat 72 is adapted to the width of the rectangular groove, thereby guiding and limiting the movement of the push block 69, so that it can only move in the horizontal direction. In addition, the guide plate set at the bottom of the push plate 73 is made of flexible material, and the push plate 73 is set inside the fixing seat 72. The limiting member 3 is provided so that the push plate 73 can only move to the left in the horizontal direction in the fixed seat 72, but not to the right, so that the backstop plate 76 can better provide a limiting effect for the limiting tooth 71. Furthermore, a circular groove with a diameter larger than the outer diameter of the spiral spring 77 is formed on the inner wall of the fixed seat 72, and the two ends of the spiral spring 77 are fixedly connected to the arc-shaped outer wall of the rotating rod 75 and the bottom inner wall of the circular groove, respectively, so that the rotating rod 75 is always affected by the reverse rotation of the spiral spring 77 when the backstop plate 76 rotates, so as to realize the movement trend of resetting.

[0029] Furthermore, the number of the backstop plates 76 is set in a plurality of groups, and the plurality of backstop plates 76 are evenly distributed on the inner wall of the fixing seat 72 in a linear array. At the same time, the height of the through groove is greater than the push plate 73, so that the backstop plate 76 can rotate with the rotating rod 75 as the rotation center without being interfered with by the movement of the push plate 73. In addition, the guide rod 79 is arranged inside the arc groove 78. When the push block 69 moves to the right in the horizontal direction along the inner wall of the trigger box 2, the limiting tooth 71 pushes the backstop plate 76 with the movement of the push block 69. Due to the arrangement of the arc groove 78 and the guide rod 79, the backstop plate 76 will not interfere with the push The movement of block 69 causes interference. After the limiting tooth 71 passes over the stop plate 76, due to the setting of the spiral spring 77, the rotating rod 75 drives the stop plate 76 to reset, so that the push block 69 interferes and blocks it when it has a tendency to move left in the horizontal direction. After the leakage risk of the entire circuit is eliminated, it is only necessary to push the push plate 73 to the left to prompt the push plate 73 to drive the stop plate 76 to swing counterclockwise, and then no longer block the limiting tooth 71, so that the staff can push the push block 69 to the left, thereby releasing the connection between the copper rod 610 and the power connector, thereby facilitating the "gate-on" operation of the leakage protector 3.

[0030] In an embodiment of the present invention, a lock assembly 8 is provided at the end of the copper rod 610 to achieve a stable circuit connection thereof. The lock assembly 8 includes a transmission rod 81. The end of the transmission rod 81 is hinged on the side wall of the U-shaped limit seat 5. The end of the transmission rod 81 away from the U-shaped limit seat 5 is hinged with a U-shaped piece 82. A bottom plate 84 is fixedly installed on the inner wall of the trigger box 2. An arc-shaped copper sheet 83 is slidably installed on the upper surface of the bottom plate 84. The U-shaped piece 82 is slidably connected to the outer wall of the arc-shaped copper sheet 83. A circular plate 85 is passed through and fixedly installed on the end of the copper rod 610. A notch groove is provided on the inner wall of the circular plate 85. The height of the notch groove is adapted to the thickness of the transmission rod 81. A cylinder 86 is fixedly installed on the inner wall of the notch groove. A guide groove 87 is provided on the inner wall of the transmission rod 81.

[0031] Specifically, the lock assembly 8 is arranged on the top of the U-shaped limit seat 5, and a hole with a diameter matching the outer diameter of the copper rod 610 is opened on the top inner wall of the U-shaped limit seat 5, so that the copper rod 610 can slide horizontally along the hole under the push of the push block 69. At the same time, there are two groups of transmission rods 81, and the two groups of transmission rods 81 are symmetrically arranged with the vertical central axis of the circular plate 85 as the symmetry axis, and the cylinder 86 is arranged inside the guide groove 87. At this time, due to the sliding connection between the U-shaped member 82 and the arc-shaped copper sheet 83, the transmission rod 81 and A lever effect is formed between the cylinders 86. As the copper rod 610 moves toward one side of the center of the arc-shaped copper sheet 83, the two groups of arc-shaped copper sheets 83 on the bottom plate 84 approach each other under the restriction of the cylinder 86 and the guide groove 87, and are finally clamped on the outer side of the end of the copper rod 610, and the arc-shaped copper sheet 83 is connected to the external power supply circuit. Finally, the copper rod 610 is inserted between the two groups of arc-shaped copper sheets 83 to achieve circuit connection, and finally realize power supply again after the leakage protector 3 is disconnected. In addition, the wrapping effect of the two groups of arc-shaped copper sheets 83 makes the circuit connection more stable, avoiding the occurrence of unstable power supply. Example

[0032] Please refer to the instruction manual for details. Figure 9-10 On the basis of the first embodiment, a docking assembly 9 is provided inside the trigger box 2 to ensure the electrical locking effect of the end of the copper rod 610. The docking assembly 9 includes a transmission plate 91, which is fixedly mounted on the outer wall of the copper rod 610. A connecting rod 92 is fixedly mounted on the side wall of the transmission plate 91. A guide ball 93 is fixedly mounted on the lower surface of one end of the connecting rod 92 away from the transmission plate 91. A mounting rod 94 is fixedly mounted on the inner wall of the trigger box 2. A docking tube 95 is rotatably mounted on the side wall of the mounting rod 94. A spiral chute 96 is opened on the arc-shaped outer wall of the docking tube 95. The guide ball 93 is arranged inside the spiral chute 96. A rubber strip 97 is arranged on the inner surface of the docking tube 95.

[0033] It is worth noting that the copper rod 610 passes through the transmission plate 91, and the transmission plate 91 is fixedly connected to the copper rod 610, and the lower surface of the connecting rod 92 is set to an arc shape that matches the arc-shaped outer surface of the docking tube 95, so that the lower surface of the connecting rod 92 can fit with the outer surface of the docking tube 95. At the same time, the docking tube 95 includes a cylinder made of insulating material and a copper ring arranged inside the cylinder. The copper ring is adapted to the outer surface of the copper rod 610, so that the copper rod 610 can fit with the copper ring when inserted into the interior of the docking tube 95, thereby realizing the conduction of the circuit. In addition, A storage opening compatible with the rubber strip 97 is provided on the arc-shaped inner surface of the docking tube 95, and the interior of the rubber strip 97 is hollow so that it can shrink and deform when compressed. Furthermore, the rubber strip 97 is arranged in a large-pitch spiral along the arc-shaped inner surface of the docking tube 95. Specifically, a contact copper sheet in contact with the copper ring is provided inside the mounting rod 94, and the contact copper sheet is connected to the external power supply circuit. Finally, when the copper rod 610 is docked with the docking tube 95, the circuit is turned on, thereby providing power to the electrical equipment after the leakage protector 3 is disconnected.

[0034] In the present invention, when in use, when leakage occurs in the power supply circuit of the transformer, the leakage protector 3 triggers the protection mechanism, causing the shift block 4 to deflect counterclockwise, thereby realizing the power-off operation of the power supply circuit, and starting the alarm light on the top of the trigger box 2 to remind the staff of the occurrence of the leakage accident. At the same time, the deflection action of the shift block 4 triggers the power restoration component 6, and cooperates with the shift block 4 to drive the hinged rod 61. At this time, due to the drive of the hinged rod 61, the gear rod 62 slides horizontally toward one side of the leakage protector 3, thereby driving the transmission gear 63 to rotate, and cooperates with the active bevel gear 64 and the driven bevel gear 66 to drive the threaded rod 65 to rotate. At this time, under the transmission of the threaded slide plate 67, the connecting spring 68 is cooperated to push the push block 69 to move horizontally close to one side of the leakage protector 3. At this time, the push block 69 cooperates with the clamping plate set on its top to drive the copper rod 610 to move slowly to the right. At this time, in cooperation with the lock head assembly 8, under the restriction of the cylinder 86 and the guide groove 87, the two groups of arc-shaped copper sheets 83 on the bottom plate 84 approach each other and are finally clamped on the outer side of the end of the copper rod 610, thereby realizing the connection between the power circuit and the external power supply circuit. Due to the delay in the transmission between the threaded rod 65, the threaded slide plate 67 and the connecting spring 68, the leakage protector 3 will not be restored until a period of time after the "tripping" phenomenon occurs, giving the circuit user enough time to escape from danger and respond in time, and through the subsequent elastic pressure of the connecting spring 68, the copper rod 610 can maintain a relatively stable state after docking with the energized connector, thereby ensuring the subsequent safe power supply of the circuit and avoiding damage to electrical equipment due to power failure.

[0035] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A transformer with a leakage alarm function, comprising a housing (1), a trigger box (2) fixedly mounted on the top of the housing (1), an alarm light arranged on the top of the trigger box (2), a leakage protector (3) fixedly mounted on the inner wall of the trigger box (2), a shifting block (4) movably connected to the side wall of the leakage protector (3), a U-shaped limit seat (5) fixedly mounted on the inner wall of the bottom of the trigger box (2), characterized in that: The trigger box (2) is provided with a power restoration component (6) inside thereof, which can restore power supply and ensure the power restoration interval time after leakage tripping; a push block (69) is slidably mounted on the inner wall of the bottom of the trigger box (2); a copper rod (610) is fixedly mounted on the top of the push block (69) via a clamp; a stopper component (7) is provided on the inner wall of the bottom of the trigger box (2) to prevent the push block (69) from retreating after temporary power supply, thereby causing unstable power supply; and a lock head component (8) is provided at the end of the copper rod (610) to achieve stable circuit connection thereof.

2. A transformer with leakage alarm function according to claim 1, characterized in that: The repowering assembly (6) comprises a hinged rod (61), the top end of the hinged rod (61) is hinged on the end side wall of the shifting block (4), the bottom end of the hinged rod (61) is hinged with a gear rod (62), the gear rod (62) is slidably mounted on the bottom inner wall of the trigger box (2), a transmission gear (63) is rotatably mounted on the inner wall of the trigger box (2), a driving bevel gear (64) is coaxially fixedly mounted on the transmission gear (63), a mounting plate is fixedly mounted on the bottom inner wall of the trigger box (2), a threaded rod (65) is rotatably mounted on the side wall of the mounting plate, a driven bevel gear (66) is penetrated and fixedly mounted on the threaded rod (65), a threaded slide plate (67) is threadedly connected to the outer wall of the threaded rod (65), and a connecting spring (68) is fixedly connected to the side wall of the threaded slide plate (67).

3. The transformer with leakage alarm function according to claim 1, characterized in that: The shift block (4) is arranged in an L shape, and a hinge seat is arranged on the side wall of the shift block (4) and is movably connected to the leakage protector (3); an arc-shaped limit groove is arranged on the outer wall of the U-shaped limit seat (5) on the side close to the leakage protector (3) and is matched with the end of the shift block (4), and the bottom of the arc-shaped limit groove is arranged to be smooth.

4. The transformer with leakage alarm function according to claim 2, characterized in that: The number of the clamping plates is two groups, and both groups of clamping plates are arranged on the top outer wall of the pushing block (69), and the clamping plates are made of insulating material.

5. The transformer with leakage alarm function according to claim 1, characterized in that: The backstop assembly (7) comprises a limiting tooth (71), a rectangular groove is provided on the bottom inner wall of the push block (69), and the limiting tooth (71) is provided on the top inner wall of the rectangular groove; a fixing seat (72) is fixedly mounted on the bottom inner wall of the trigger box (2); a push plate (73) is slidably mounted on the inner wall of the fixing seat (72); a guide plate is provided on the lower surface of the push plate (73); a return spring (74) is fixedly connected between the guide plate and the inner wall of the fixing seat (72); a rotating rod (75) is rotatably mounted on the inner wall of the fixing seat (72); a backstop plate (76) is penetrated and fixedly mounted on the rotating rod (75); a spiral spring (77) is sleeved on the arc-shaped outer wall of the rotating rod (75); an arc-shaped groove (78) is provided on the inner wall of the push plate (73); a through groove is provided on the inner wall of the backstop plate (76); and a guide rod (79) is fixedly mounted on the inner wall of the through groove.

6. The transformer with leakage alarm function according to claim 5, characterized in that: The cross section of the limiting tooth (71) is arranged in the shape of a right triangle, and the inclined surface of the limiting tooth (71) faces one side of the leakage protector (3); the width of the fixing seat (72) is adapted to the width of the rectangular groove; a circular groove having a diameter greater than the outer diameter of the scroll spring (77) is provided on the inner wall of the fixing seat (72); and the two ends of the scroll spring (77) are respectively fixedly connected to the arc-shaped outer wall of the rotating rod (75) and the bottom inner wall of the circular groove.

7. The transformer with leakage alarm function according to claim 5, characterized in that: The height of the penetration groove is greater than that of the push plate (73), and the guide rod (79) is arranged inside the arc-shaped groove (78).

8. The transformer with leakage alarm function according to claim 1, characterized in that: The lock assembly (8) comprises a transmission rod (81), the end of which is hinged on the side wall of the U-shaped limit seat (5), the end of which is away from the U-shaped limit seat (5) being hinged to a U-shaped piece (82), the inner wall of the trigger box (2) being fixedly mounted with a bottom plate (84), the upper surface of which is slidably mounted with an arc-shaped copper sheet (83), the U-shaped piece (82) being slidably connected to the outer wall of the arc-shaped copper sheet (83), the end of the copper rod (610) being penetrated by and fixedly mounted with a circular plate (85), the inner wall of which is provided with a notch groove, the height of which is adapted to the thickness of the transmission rod (81), the inner wall of which is fixedly mounted with a cylinder (86), and the inner wall of which is provided with a guide groove (87).

9. The transformer with leakage alarm function according to claim 1, characterized in that: A docking assembly (9) is arranged inside the trigger box (2) to ensure the electrical locking effect of the end of the copper rod (610). The docking assembly (9) comprises a transmission plate (91). The transmission plate (91) is fixedly mounted on the outer wall of the copper rod (610). A connecting rod (92) is fixedly mounted on the side wall of the transmission plate (91). A guide ball (93) is fixedly mounted on the lower surface of one end of the connecting rod (92) away from the transmission plate (91). A mounting rod (94) is fixedly mounted on the inner wall of the trigger box (2). A docking tube (95) is rotatably mounted on the side wall of the mounting rod (94). A spiral chute (96) is provided on the arc-shaped outer wall of the docking tube (95). The guide ball (93) is arranged inside the spiral chute (96). A rubber strip (97) is arranged on the inner surface of the docking tube (95).

10. The transformer with leakage alarm function according to claim 9, characterized in that: The docking tube (95) comprises a tube body made of insulating material and a copper ring arranged inside the tube body, the copper ring being matched with the outer surface of the copper rod (610), a receiving opening being matched with the rubber strip (97) being provided on the arc-shaped inner surface of the docking tube (95), and the inside of the rubber strip (97) being arranged in a hollow shape, and the rubber strip (97) being arranged in a large-pitch spiral shape along the arc-shaped inner surface of the docking tube (95).

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