Automatic power-off safe power supply box and power-off method

Abstract

The invention discloses an automatic power-off safe electric power supply box and a power-off method, and particularly relates to the technical field of electric power supply boxes, the automatic power-off safe electric power supply box comprises a box body, a box door is arranged on one side of the box body, a plurality of electrical elements are arranged in the box body, fuses are arranged in the electrical elements, and the fuses are connected with the box door. A plurality of through holes are formed in one side of the box body, a limiting device is arranged on the side, close to the through holes, of the box body, the limiting device comprises a connecting plate and a second clamping plate, a connecting device is arranged between the connecting plate and the box body, and a stabilizing device is arranged on one side of the connecting plate. A worker can be limited by the first clamping plate and the second clamping plate when dragging the electric wire, the situation that normal power supply is affected due to the fact that the connecting position of the electric wire and an electrical element is loosened and the electric wire and the electrical element are separated when the electric wire is dragged for multiple times is reduced, and the connection stability of the electric wire and the electrical element in the box body is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electric power supply boxes, and in particular to a safe electric power supply box with automatic power-off and a power-off method. Background Art

[0002] In the process of using electricity, a safe power supply box is often needed. The power supply box is the control center that directs the various components in the power supply line to reasonably distribute electric energy. It has the characteristics of small size, easy installation, special technical performance, fixed position, unique configuration function, no site restrictions, wide application, stable and reliable operation, high space utilization, small footprint and environmental protection.

[0003] During use, the existing power supply box is mostly placed on the ground or hung on the wall, and then multiple wires are passed through the through holes on the box and connected to multiple electrical components inside the box, so that the power supply provides power to the wires under the action of the electrical components. However, the wires may be dragged by external forces during use, and the existing power supply box lacks a limiting mechanism for the wires, which may cause the wires to be separated from the electrical components after being dragged multiple times, affecting normal power supply. Summary of the invention

[0004] The present invention proposes a safe power supply box with automatic power-off and a power-off method to solve the problem that the electric wires may be dragged by external forces during use, and the existing power supply box lacks a limiting mechanism for the electric wires, which may cause the electric wires to be disconnected from electrical components after being dragged multiple times, affecting normal power supply.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a safe power supply box with automatic power off, comprising a box body, a box door is provided on one side of the box body, a plurality of electrical components are arranged inside the box body, a fuse is arranged inside the plurality of electrical components, a plurality of through holes are provided on one side of the box body, a limiting device is provided on a side of the box body close to the through holes, the limiting device comprises a connecting plate and a second clamping plate, a connecting device is provided between the connecting plate and the box body, a stabilizing device is provided on one side of the connecting plate, a rectangular rod is fixedly connected to one side of the connecting plate, a T-slot is provided on one side of the rectangular rod, a T-rod is slidably connected to the inner wall of the T-slot, a first clamping plate is fixedly connected to one side of the T-rod, a plurality of first card slots are provided on one side of the first clamping plate, a screw is fixedly connected to one side of the first clamping plate close to the first card slot, a screw is threadedly connected to the surface of the screw with a screw hole ring, a plurality of second card slots are provided on one side of the second clamping plate, a circular hole is provided on one side of the second clamping plate, the second clamping plate is sleeved on the surface of the screw through the circular hole, and the surface of the screw hole ring is larger than the inner wall of the circular hole.

[0006] The effect achieved by the above-mentioned components is as follows: by setting a limiting device, the limiting device is first connected and fixed to the box body through the connecting device, and then the first clamping plate is manually moved so that the first clamping plate drives the T-bar to move, so that the T-plate moves left and right along the inside of the T-slot, so that the first clamping plate drives the screw to move left and right, and when the first clamping plate moves to the position where the surface of the wire is stuck in the first clamping slot, the second clamping plate is manually moved, and when the second clamping plate moves to the position where it is sleeved on the surface of the screw through the circular hole, the screw hole ring is manually rotated so that the screw hole ring moves left and right along the surface of the screw, so that the screw hole ring pushes the second clamping plate to move left and right, and when the screw hole ring moves to the position where the surface squeezes the surface of the second clamping plate, the surface of the wire is stuck in the inside of the second clamping slot, so that the surface of the second clamping plate is fitted or close to the surface of the first clamping plate and squeezes and fixes the surface of the wire, thereby achieving the limiting and fixing effect of the wire, so that people can be limited by the first clamping plate and the second clamping plate when dragging the wire, reducing the situation where the connection between the wire and the electrical component is loosened due to repeated dragging of the wire and causing the wire and the electrical component to separate and affect the normal power supply, and improving the connection stability between the wire and the electrical component inside the box.

[0007] Preferably, the inner walls of the first card slots are fixedly connected with a plurality of first rubber strips, the inner walls of the second card slots are fixedly connected with a plurality of second rubber strips, and the first rubber strips and the second rubber strips are arranged at equal distances.

[0008] The effects achieved by the above components are as follows: by arranging the first rubber strip and the second rubber strip, the first rubber strip and the second rubber strip can increase the friction between the inner walls of the first slot and the second slot and the surface of the wire, thereby reducing the sliding of the wire when the first clamping plate and the second clamping plate clamp the wire. At the same time, the first rubber strip and the second rubber strip can fill the gap between the inner walls of the first slot and the second slot and the surface of the wire, thereby reducing the shaking of the wire inside the first slot and the second slot, thereby improving the limiting efficiency of the wire.

[0009] Preferably, a plurality of auxiliary grooves are formed on the surface of the screw hole ring, and the plurality of auxiliary grooves are arranged at equal distances.

[0010] The effect achieved by the above-mentioned components is: by setting the auxiliary groove, people can insert their fingers into the auxiliary groove and manually rotate the screw hole ring, thereby reducing the situation where the hand slips when the person's hand directly contacts the surface of the screw hole ring, and at the same time improving the stability and convenience of people when manually rotating the screw hole ring.

[0011] Preferably, a handle is fixedly connected to one side of the first clamping plate away from the first clamping slot, and a plurality of anti-slip protrusions are provided on the inner side of the handle.

[0012] The effect achieved by the above components is: by setting a handle, the handle can provide a fulcrum for personnel when manually moving the first splint, so that personnel can drive the first splint to move left and right by manually moving the handle, thereby improving the convenience of personnel when manually moving the first splint, and facilitating personnel to manually adjust the position of the first splint.

[0013] Preferably, a clamping block is fixedly connected to one side of the first clamping plate close to the screw rod, a rectangular hole is opened on one side of the second clamping plate, and the surface size and shape of the clamping block are matched with the size and shape of the inner wall of the rectangular hole.

[0014] The effect achieved by the above components is: by setting the card block and the rectangular hole, the card block can be inserted into the inner position of the rectangular hole to assist in limiting the second clamping plate, thereby reducing the shaking of the second clamping plate after the second clamping plate is closed with the first clamping plate, and improving the use stability of the second clamping plate.

[0015] Preferably, the connecting device includes a rectangular frame, which is fixedly connected to a side of the box body close to the through hole, a threaded hole is opened on one side of the rectangular frame, a bolt is threadedly connected to the inner wall of the threaded hole, a rectangular block is slidably connected to the inner wall of the rectangular frame, the rectangular block is fixedly connected to the connecting plate, a circular groove is opened on one side of the connecting plate, and the surface size and shape of the bolt are adapted to the size and shape of the inner wall of the circular groove.

[0016] The effect achieved by the above components is: by setting the connecting device, first manually move the connecting plate so that the connecting plate drives the rectangular block to move, and when the rectangular block moves to a position where it is inserted into the inner part of the rectangular frame, the inner wall of the threaded hole coincides with the inner wall of the circular groove. At this time, the bolt is rotated by an auxiliary tool, and when the bolt is rotated to a position where it enters the threaded hole and the inner part of the circular groove, the bolt fixes the rectangular block inside the rectangular frame, thereby fixing the limit device to the box body, and then the limit device can be quickly assembled and disassembled with the box body through the connecting device, thereby improving the convenience for personnel to store or maintain the box body and the limit device in the later stage.

[0017] Preferably, the inner wall of the rectangular frame is fixedly connected to a limiting block, a limiting groove is provided on one side of the rectangular block, and the surface size and shape of the limiting block are matched with the size and shape of the inner wall of the limiting groove.

[0018] The effect achieved by the above-mentioned components is: by setting the limit groove and the limit block, when the rectangular block is inserted into the internal position of the rectangular frame, the limit block is inserted into the limit groove, so that the limit block is located inside the limit groove to assist in limiting the rectangular block inserted into the rectangular frame, thereby reducing the shaking of the rectangular block after it is inserted into the rectangular frame and improving the connection stability between the rectangular block and the rectangular frame.

[0019] Preferably, the stabilizing device includes a round hole rod, the round hole rod is fixedly connected to the connecting plate, the inner wall of the round hole rod is slidably connected to a positioning rod, one end of the positioning rod is fixedly connected to a circular plate, the surface of the circular plate is larger than the inner wall of the round hole rod, the first clamping plate is fixedly connected to a ring on the side away from the first slot, and the surface of the positioning rod is clamped with the inner wall of the ring.

[0020] The effect achieved by the above-mentioned components is: by setting up a stabilizing device, first manually move the circular plate, so that the circular plate drives the positioning rod to move left and right, so that the positioning rod moves left and right along the inside of the circular hole rod, and when the positioning rod moves to a position away from one end of the circular plate and is stuck in the internal position of the circular ring, the positioning rod assists in limiting the first clamping plate under the limiting action of the circular ring and the circular hole rod, thereby reducing the up and down shaking of the limiting device during use, and improving the stability of the limiting device and the limiting efficiency of the wires.

[0021] Preferably, a reinforcement block is fixedly connected to one side of the round hole rod close to the connecting plate, the reinforcement block is fixedly connected to the connecting plate, and the surface of the reinforcement block is trapezoidal.

[0022] The effect achieved by the above components is: by setting the reinforcement block, the reinforcement block can strengthen the connection between the round hole rod and the connecting plate, reduce the separation or breakage of the round hole rod from the connecting plate during use, and improve the strength and stability of the round hole rod.

[0023] Preferably, a method for cutting off power of an electric power supply box comprises the following steps: S1. First, the wires are connected and fixed to the multiple electrical components inside the box, so that the box inputs power into the wires through the electrical components for the equipment to use, thereby completing the power supply to the electrical equipment.

[0024] S2. When the wires and power loads reach their maximum values, the temperature inside the electrical components rises. When the temperature inside the electrical components reaches the melting point of the fuse, the fuse wire breaks.

[0025] S3. When the fuse reaches the melting point and melts and breaks, the electrical connection between the wire and the electrical component is separated, so that the power supply can no longer provide power to the wire through the electrical component, and the box is automatically powered off.

[0026] In summary, the beneficial effects of the present invention are: By setting a limiting device, people can be limited by the first clamping plate and the second clamping plate when dragging the wires, thereby reducing the situation where the wires are dragged multiple times, causing the connection between the wires and the electrical components to loosen and cause the wires and the electrical components to separate, affecting normal power supply, and improving the connection stability between the wires and the electrical components inside the box.

[0027] By providing the connecting device, the limiting device can be quickly assembled and disassembled with the box body through the connecting device, thereby improving the convenience for personnel to store or maintain the box body and the limiting device in the future.

[0028] By providing a stabilizing device, the stabilizing device can provide auxiliary support and reinforcement to the limiting device, thereby reducing the up and down shaking of the limiting device during use, and improving the stability of the limiting device and the limiting efficiency of the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional schematic diagram of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the screw hole ring of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the first splint of the present invention; Figure 5 is a schematic diagram of the three-dimensional structure of the second splint of the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the T-bar of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the connecting plate of the present invention; Figure 8 It is a three-dimensional structural schematic diagram of the positioning rod of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the rectangular block of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the rectangular frame of the present invention.

[0030] Description of reference numerals: 1. Box body; 2. Box door; 3. Electrical components; 4. Through hole; 5. Limiting device; 51. Connecting plate; 52. Rectangular rod; 53. T-slot; 54. T-rod; 55. First clamping plate; 56. First slot; 57. First rubber strip; 58. Screw; 59. Screw hole ring; 510. Auxiliary slot; 511. Second clamping plate; 512. Second slot; 513. Round hole; 514. Second rubber strip; 515. Rectangular hole; 516. Block; 517. Handle; 6. Connecting device; 61. Rectangular frame; 62. Threaded hole; 63. Bolt; 64. Limiting block; 65. Rectangular block; 66. Round slot; 67. Limiting slot; 7. Stabilizing device; 71. Round hole rod; 72. Positioning rod; 73. Round plate; 74. Ring; 75. Reinforcement block. DETAILED DESCRIPTION

[0031] Reference Figure 1-7As shown, the present embodiment discloses a safe power supply box with automatic power off, comprising a box body 1, a box door 2 is arranged on one side of the box body 1, a plurality of electrical components 3 are arranged inside the box body 1, and fuses are arranged inside the plurality of electrical components 3, a plurality of through holes 4 are opened on one side of the box body 1, a limiting device 5 is arranged on one side of the box body 1 close to the through holes 4, the limiting device 5 comprises a connecting plate 51 and a second clamping plate 511, a connecting device 6 is arranged between the connecting plate 51 and the box body 1, a stabilizing device 7 is arranged on one side of the connecting plate 51, a rectangular rod 52 is fixedly connected to one side of the connecting plate 51, and a T-shaped slot 53 is opened on one side of the rectangular rod 52 The inner wall of the T-slot 53 is slidably connected with a T-bar 54, one side of the T-bar 54 is fixedly connected with a first clamping plate 55, one side of the first clamping plate 55 is provided with a plurality of first slots 56, a side of the first clamping plate 55 close to the first slots 56 is fixedly connected with a screw 58, a surface of the screw 58 is threadedly connected with a screw hole ring 59, one side of the second clamping plate 511 is provided with a plurality of second slots 512, one side of the second clamping plate 511 is provided with a circular hole 513, the second clamping plate 511 is sleeved on the surface of the screw 58 through the circular hole 513, the surface of the screw hole ring 59 is larger than the inner wall of the circular hole 513, by setting the limit device 5, the first First, the limiting device 5 is connected and fixed to the box body 1 through the connecting device 6. At this time, the first clamping plate 55 is manually moved, so that the first clamping plate 55 drives the T-shaped rod 54 to move, so that the T-shaped plate moves left and right along the inside of the T-shaped slot 53, so that the first clamping plate 55 drives the screw rod 58 to move left and right. When the first clamping plate 55 moves to the position where the surface of the wire is clamped into the inside of the first clamping slot 56, the second clamping plate 511 is manually moved. When the second clamping plate 511 moves to the position where it passes through the circular hole 513 and is sleeved on the surface of the screw rod 58, the screw hole ring 59 is manually rotated so that the screw hole ring 59 moves left and right along the surface of the screw rod 58, so that the screw hole ring 59 pushes the second clamping plate 51 1 moves left and right, when the screw hole ring 59 moves to the position where the surface squeezes the surface of the second clamping plate 511, the surface of the wire is clamped into the second clamping groove 512, so that the surface of the second clamping plate 511 is fitted or close to the surface of the first clamping plate 55 and squeezes and fixes the surface of the wire, thereby achieving the effect of limiting and fixing the wire, so that people can be limited by the first clamping plate 55 and the second clamping plate 511 when dragging the wire, reducing the situation where the connection between the wire and the electrical component 3 is loosened due to repeated dragging of the wire and causing the wire and the electrical component 3 to separate and affect the normal power supply, and improving the connection stability between the wire and the electrical component 3 inside the box body 1.

[0032] Reference Figure 3-7As shown, the present embodiment discloses that the inner walls of the plurality of first card slots 56 are all fixedly connected with the plurality of first rubber strips 57, the inner walls of the plurality of second card slots 512 are all fixedly connected with the plurality of second rubber strips 514, the plurality of first rubber strips 57 and the plurality of second rubber strips 514 are all arranged at equal distances, and by providing the first rubber strips 57 and the second rubber strips 514, the first rubber strips 57 and the second rubber strips 514 can increase the friction between the inner walls of the first card slots 56 and the second card slots 512 and the surface of the wire, and reduce the sliding of the wire when the first clamping plate 55 and the second clamping plate 511 clamp the wire. At the same time, the first rubber strips 57 and the second The rubber strip 514 can fill the gap between the inner wall of the first slot 56 and the second slot and the surface of the wire, reduce the shaking of the wire inside the first slot 56 and the second slot 512, and improve the limiting efficiency of the wire. The surface of the screw hole ring 59 is provided with a plurality of auxiliary grooves 510, and the plurality of auxiliary grooves 510 are arranged at equal distances. By providing the auxiliary grooves 510, a person can insert his fingers into the auxiliary grooves 510 and manually rotate the screw hole ring 59, reducing the slippage of the hand when the person's hand directly contacts the surface of the screw hole ring 59, and at the same time can improve the stability and convenience of the person manually rotating the screw hole ring 59.

[0033] Reference Figure 3-7 As shown, the present embodiment discloses that a handle 517 is fixedly connected to one side of the first clamping plate 55 away from the first clamping groove 56, and a plurality of anti-slip protrusions are arranged on the inner side of the handle 517. By arranging the handle 517, the handle 517 can provide a fulcrum for a person to manually move the first clamping plate 55, so that the person can manually move the handle 517 to drive the first clamping plate 55 to move left and right, thereby improving the convenience of the person to manually move the first clamping plate 55 and facilitating the person to manually adjust the position of the first clamping plate 55. The first clamping plate 55 is close to the screw A clamping block 516 is fixedly connected to one side of the rod 58, and a rectangular hole 515 is opened on one side of the second clamping plate 511. The surface size and shape of the clamping block 516 are adapted to the size and shape of the inner wall of the rectangular hole 515. By setting the clamping block 516 and the rectangular hole 515, the clamping block 516 can be inserted into the internal position of the rectangular hole 515 to assist in limiting the second clamping plate 511, thereby reducing the shaking of the second clamping plate 511 after the second clamping plate 511 is closed with the first clamping plate 55, and improving the stability of the second clamping plate 511.

[0034] Reference Fig. 9 and Fig.10As shown, the present embodiment discloses a connecting device 6 including a rectangular frame 61, the rectangular frame 61 is fixedly connected to one side of the box body 1 near the through hole 4, a threaded hole 62 is provided on one side of the rectangular frame 61, a bolt 63 is threadedly connected to the inner wall of the threaded hole 62, a rectangular block 65 is slidably connected to the inner wall of the rectangular frame 61, the rectangular block 65 is fixedly connected to the connecting plate 51, a circular groove 66 is provided on one side of the connecting plate 51, the surface size and shape of the bolt 63 are adapted to the size and shape of the inner wall of the circular groove 66, by setting the connecting device 6, first manually move the connecting plate 51 so that the connecting plate 51 is brought The movable rectangular block 65 moves, and when the rectangular block 65 moves to a position where it is inserted into the inner part of the rectangular frame 61, the inner wall of the threaded hole 62 coincides with the inner wall of the circular groove 66. At this time, the bolt 63 is rotated by an auxiliary tool, and when the bolt 63 is rotated to enter the inner position of the threaded hole 62 and the circular groove 66, the bolt 63 fixes the rectangular block 65 inside the rectangular frame 61, so that the limiting device 5 is fixed to the box body 1, and then the limiting device 5 can be quickly assembled and disassembled with the box body 1 through the connecting device 6, which improves the convenience for personnel to store or maintain the box body 1 and the limiting device 5 in the later stage.

[0035] Reference Fig. 9 and Fig.10 As shown, the present embodiment discloses a limiting block 64 fixedly connected to the inner wall of the rectangular frame 61, a limiting groove 67 is provided on one side of the rectangular block 65, the surface size and shape of the limiting block 64 are adapted to the inner wall size and shape of the limiting groove 67, by setting the limiting groove 67 and the limiting block 64, when the rectangular block 65 is inserted into the internal position of the rectangular frame 61, the limiting block 64 is inserted into the limiting groove 67, so that the limiting block 64 is located in the limiting groove 67 to assist in limiting the rectangular block 65 inserted into the rectangular frame 61, thereby reducing the shaking of the rectangular block 65 after being inserted into the rectangular frame 61, and improving the connection stability between the rectangular block 65 and the rectangular frame 61.

[0036] Reference Figure 8 and Fig. 9When the locking cam 73 is in the closed position, the locking cam 73 is in the closed position, and the locking cam 73 is in the closed position when the locking cam 73 is in the open position.

[0037] Reference Figure 8 and Fig. 9 As shown, the present embodiment discloses that a reinforcement block 75 is fixedly connected to one side of the round hole rod 71 close to the connecting plate 51, and the reinforcement block 75 is fixedly connected to the connecting plate 51. The surface of the reinforcement block 75 is trapezoidal. By setting the reinforcement block 75, the reinforcement block 75 can strengthen the connection between the round hole rod 71 and the connecting plate 51, thereby reducing the separation or breakage of the round hole rod 71 from the connecting plate 51 during use, and improving the strength and stability of the round hole rod 71.

[0038] The working principle is as follows: first, place the power supply box on the ground or hang it on the wall, then pass multiple wires through the through holes 4 on the box body 1 and connect them to multiple electrical components 3 inside the box body 1, then manually move the connecting plate 51 so that the connecting plate 51 drives the rectangular block 65 to move, and when the rectangular block 65 moves to a position where it is inserted into the inner part of the rectangular frame 61, the inner wall of the threaded hole 62 coincides with the inner wall of the circular groove 66, and then the bolt 63 is rotated by an auxiliary tool, and when the bolt 63 is rotated to a position where it enters the inner part of the threaded hole 62 and the circular groove 66, the bolt 63 is pressed against the rectangular frame 61. The inner rectangular block 65 is fixed, thereby completing the connection and fixation of the limit device 5 and the box body 1. At this time, the handle 517 is manually moved, so that the handle 517 drives the first clamping plate 55 to move, so that the first clamping plate 55 drives the T-shaped rod 54 to move, so that the T-shaped plate moves left and right along the inside of the T-shaped slot 53, so that the first clamping plate 55 drives the screw 58 to move left and right. When the first clamping plate 55 moves to the position where the surface of the wire is clamped into the inner position of the first clamping slot 56, the second clamping plate 511 is manually moved. When the second clamping plate 511 moves to the position where it is sleeved on the surface of the screw 58 through the circular hole 513 When the screw hole ring 59 is manually rotated, the screw hole ring 59 moves left and right along the surface of the screw rod 58, so that the screw hole ring 59 pushes the second clamping plate 511 to move left and right. When the surface of the moving block 516 of the second clamping plate 511 is completely inserted into the inner position of the rectangular hole 515, the surface of the wire is inserted into the second clamping groove 512, so that the surface of the second clamping plate 511 is in contact with or close to the surface of the first clamping plate 55 and the surface of the wire is squeezed and fixed, thereby achieving the effect of limiting and fixing the wire, so that the person can be limited by the first clamping plate 55 and the second clamping plate 511 when dragging the wire. At this time, the circular plate 73 is manually moved, so that the circular plate 73 drives the positioning rod 72 to move left and right, so that the positioning rod 72 moves left and right along the inside of the circular hole rod 71. When the positioning rod 72 moves to a position away from the end of the circular plate 73 and is stuck in the inner position of the circular ring 74, the positioning rod 72 assists in limiting the first clamping plate 55 under the limiting action of the circular ring 74 and the circular hole rod 71, thereby completing the limiting and reinforcement of the wires. At this time, the power supply transmits power to the wires through the electrical component 3, so that the power is provided to the external electrical equipment through the wires, thereby completing the power supply to the external electrical equipment.

[0039] The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A safe electric power supply box with automatic power-off, comprising a box body (1), characterized in that: A box door (2) is provided on one side of the box body (1), a plurality of electrical components (3) are provided inside the box body (1), and fuses are provided inside the plurality of electrical components (3). A plurality of through holes (4) are provided on one side of the box body (1), and a limiting device (5) is provided on a side of the box body (1) close to the through holes (4). The limiting device (5) comprises a connecting plate (51) and a second clamping plate (511). A connecting device (6) is provided between the connecting plate (51) and the box body (1). A stabilizing device (7) is provided on one side of the connecting plate (51), and a rectangular rod (52) is fixedly connected to one side of the connecting plate (51). A T-shaped slot (53) is provided on one side of the rectangular rod (52). The T-shaped slot (53) is provided on one side of the rectangular rod (52). The inner wall of the second clamping plate (53) is slidably connected to a T-shaped rod (54), one side of the T-shaped rod (54) is fixedly connected to a first clamping plate (55), one side of the first clamping plate (55) is provided with a plurality of first slots (56), the side of the first clamping plate (55) close to the first slots (56) is fixedly connected to a screw rod (58), the surface of the screw rod (58) is threadedly connected to a screw hole ring (59), one side of the second clamping plate (511) is provided with a plurality of second slots (512), one side of the second clamping plate (511) is provided with a circular hole (513), the second clamping plate (511) is sleeved on the surface of the screw rod (58) through the circular hole (513), and the surface of the screw hole ring (59) is larger than the inner wall of the circular hole (513).

2. The automatic power-off safety power supply box according to claim 1, characterized in that: The inner walls of the plurality of first card slots (56) are fixedly connected to a plurality of first rubber strips (57), the inner walls of the plurality of second card slots (512) are fixedly connected to a plurality of second rubber strips (514), and the plurality of first rubber strips (57) and the plurality of second rubber strips (514) are arranged at equal distances.

3. The automatic power-off safety power supply box according to claim 1, characterized in that: A plurality of auxiliary grooves (510) are formed on the surface of the screw hole ring (59), and the plurality of auxiliary grooves (510) are arranged at equal distances.

4. The automatic power-off safety power supply box according to claim 1, characterized in that: A handle (517) is fixedly connected to one side of the first clamping plate (55) away from the first clamping slot (56), and a plurality of anti-slip protrusions are provided on the inner side of the handle (517).

5. The automatic power-off safety power supply box according to claim 1, characterized in that: A clamping block (516) is fixedly connected to one side of the first clamping plate (55) close to the screw rod (58), and a rectangular hole (515) is provided on one side of the second clamping plate (511). The surface size and shape of the clamping block (516) are adapted to the size and shape of the inner wall of the rectangular hole (515).

6. The automatic power-off safety power supply box according to claim 1, characterized in that: The connecting device (6) comprises a rectangular frame (61), the rectangular frame (61) being fixedly connected to a side of the box body (1) close to the through hole (4), a threaded hole (62) being provided on one side of the rectangular frame (61), a bolt (63) being threadedly connected to the inner wall of the threaded hole (62), a rectangular block (65) being slidably connected to the inner wall of the rectangular frame (61), the rectangular block (65) being fixedly connected to the connecting plate (51), a circular groove (66) being provided on one side of the connecting plate (51), the surface size and shape of the bolt (63) being adapted to the size and shape of the inner wall of the circular groove (66).

7. The automatic power-off safety power supply box according to claim 6, characterized in that: The inner wall of the rectangular frame (61) is fixedly connected to a limiting block (64), one side of the rectangular block (65) is provided with a limiting groove (67), and the surface size and shape of the limiting block (64) are adapted to the size and shape of the inner wall of the limiting groove (67).

8. The automatic power-off safety power supply box according to claim 1, characterized in that: The stabilizing device (7) comprises a round hole rod (71), the round hole rod (71) is fixedly connected to the connecting plate (51), the inner wall of the round hole rod (71) is slidably connected to a positioning rod (72), one end of the positioning rod (72) is fixedly connected to a circular plate (73), the surface of the circular plate (73) is larger than the inner wall of the round hole rod (71), and a circular ring (74) is fixedly connected to the side of the first clamping plate (55) away from the first clamping groove (56), and the surface of the positioning rod (72) is clamped to the inner wall of the circular ring (74).

9. The automatic power-off safety power supply box according to claim 8, characterized in that: A reinforcing block (75) is fixedly connected to one side of the round hole rod (71) close to the connecting plate (51); the reinforcing block (75) is fixedly connected to the connecting plate (51); and the surface of the reinforcing block (75) is trapezoidal.

10. A method for cutting off power of an electric power supply box, characterized in that: The power-off method for the electric power supply box according to any one of claims 1 to 9 comprises the following steps: S1. First, the electric wires are connected and fixed to the plurality of electrical components (3) inside the box (1), so that the box (1) inputs power into the electric wires through the electrical components (3) for use by the equipment, thereby completing the power supply to the electrical equipment; S2, when the electric wire and the electric power load reach the maximum value, the temperature inside the electric component (3) rises, and when the temperature inside the electric component (3) reaches the melting point of the fuse, the fuse line breaks; S3. When the fuse reaches the melting point and melts and breaks, the electrical connection between the wire and the electrical component (3) is disconnected, so that the power supply cannot continue to provide power to the wire through the electrical component (3), and the box (1) is automatically powered off.

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