Distribution box electric leakage protection device and use method thereof

Abstract

The invention relates to the technical field of conveying devices, and discloses a power distribution box electric leakage protection device and a use method thereof.The power distribution box electric leakage protection device comprises a main body, a supporting plate is fixedly connected into the main body, two communicating grooves are formed in the supporting plate, annular grooves are formed in the inner walls of the communicating grooves, and the tops and the bottoms of the communicating grooves penetrate to the outer wall of the supporting plate. According to the invention, when the air bag is expanded, the gap between the interface of the equipment and the wire can be filled, and external dust and moisture can be blocked, so that the situation of electric leakage caused by entrance of the external dust or moisture in the use process can be reduced; and the sealing effect is improved, and the normal service life between the equipment and the wire can be prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of conveying devices, and in particular to a leakage protection device for a distribution box and a use method thereof. Background Art

[0002] In the field of electric power, the distribution box is the key link in the power system that directly faces the end users. It plays an important role in electric energy calculation, electric energy distribution and circuit control. The perfection of its system configuration is directly related to the reliability and quality of power consumption of users. Since the leakage of equipment inside the distribution box is basically caused by leakage between the interface of the equipment and the wires, the existing leakage protection is basically through the residual current protector (RCD) to cut off the circuit through the internal tripping mechanism after detecting that the residual current exceeds the standard. Since the distribution box is used for a long time, the dust and external moisture in the external environment can easily enter between the interface and the wires, and leakage can easily occur due to the residual moisture or dust during long-term use, which affects the leakage protection capability of the distribution box and the safety of the surrounding environment. Summary of the invention

[0003] The object of the present invention is to provide a leakage protection device for a distribution box and a method of using the same, so as to solve the problems raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a leakage protection device for a distribution box, comprising a main body, a support plate fixedly connected inside the main body, two connecting grooves arranged inside the support plate, an annular groove arranged on the inner wall of the connecting groove, the top and the bottom of the connecting groove both penetrate to the outer wall of the support plate, and further comprising; The connecting mechanism comprises a rotating ring rotatably connected to the inner wall at the top of the annular groove, the inner wall of the rotating ring is provided with an annular W-groove, the outer surface of the rotating ring is fixedly connected with a gear ring, the bottom of the gear ring is meshingly connected with a plurality of gear shafts, the outer surface of the gear shaft is rotatably connected with a limit plate, the top of the limit plate is meshingly connected with the inner wall at the top of the annular groove, the side of the gear shaft away from the rotating ring is fixedly connected with an obtuse plate, the side of the obtuse plate away from the gear shaft is rotatably connected with a connecting plate, the side of the plurality of connecting plates away from the obtuse plate is rotatably connected with a moving sleeve, and the outer surface of the moving sleeve is provided with four rectangular grooves, The moving mechanism includes a plurality of telescopic rods fixedly connected to the inner wall at the top of the annular groove, a hollow cylinder fixedly connected to the bottom of the plurality of telescopic rods, a sliding groove is provided on the outer surface of the hollow cylinder, an insertion rod is slidably connected inside the sliding groove, a plurality of triangular plates are fixedly connected to the inner wall of the hollow cylinder, and an insertion rod 2 is fixedly connected to the side of the hollow cylinder away from the insertion rod.

[0005] Furthermore, an auxiliary mechanism is provided inside the connecting groove, and the auxiliary mechanism includes a fixing ring rotatably connected to the outer surface of the hollow cylinder, an extension plate is fixedly connected to the outer surface of the fixing ring, a side of the extension plate away from the fixing ring penetrates to the outer wall of the rectangular groove and is fixedly connected to the inner wall of the connecting groove, the inner wall of the fixing ring is rotatably connected to a rotating sleeve, and two arc grooves are provided on the outer surface of the rotating sleeve.

[0006] Furthermore, a plurality of spring rods are fixedly connected to the bottom of the rotating sleeve, and two fixed frames are fixedly connected to the inner wall of the fixed ring on the side away from the spring rods. A plurality of spring rods are fixedly connected to a rotating ring 2 on the side away from the rotating sleeve, and an annular wave groove is provided on the outer surface of the rotating ring 2, and a bidirectional thread groove is provided on the inner wall of the rotating ring 2, and the inserted rod 2 is slidably connected to the inside of the bidirectional thread groove.

[0007] Furthermore, a pushing mechanism is provided inside the rotating sleeve, and the pushing mechanism includes two telescopic spring plates rotatably connected to the inner wall of the rotating sleeve on the side away from the spring rod, the side of the telescopic spring plate away from the spring rod penetrates into the fixed frame and extends to the outside of the rectangular groove, the extended end of the telescopic spring plate is fixedly connected to an extension rod, the ends of the two extension rods away from the telescopic spring plate are fixedly connected to a fixing ring, the side of the telescopic spring plate close to the rotating sleeve is fixedly connected to a short shaft, the end of the short shaft away from the telescopic spring plate is slidably connected to the inside of the arc groove, and a rectangular groove 2 is provided on the side of the telescopic spring plate close to the short shaft.

[0008] Furthermore, an inflation mechanism is provided at the bottom of the movable sleeve, and the inflation mechanism includes a plurality of arc-shaped elastic plates fixedly connected to the side of the movable sleeve away from the rotating ring, the inner wall of the arc-shaped elastic plate is rotatably connected to the rotating plate, the top of the rotating plate is fixedly connected to a tension spring, the end of the tension spring away from the rotating plate is fixedly connected to the side wall of the flexible belt 1, the side of the rotating plate close to the tension spring is fixedly connected to the arc-shaped elastic plate, the side of the flexible belt 1 away from the rotating plate is fixedly connected to the side wall of the arc-shaped elastic plate, two flexible belts 2 are fixedly connected to the top of the rotating plate, the two flexible belts 2 are symmetrically distributed with the arc-shaped elastic plate as the center, the side of the flexible belt 2 away from the rotating plate is fixedly connected to the side wall of the arc-shaped elastic plate, and a flexible layer is fixedly connected between the two flexible belts 2.

[0009] Furthermore, the side wall of the arc-shaped elastic plate is provided with an adsorption mechanism, which includes a plurality of sliding plates arranged inside the movable sleeve, the outer surfaces of the plurality of sliding plates are slidably connected with a fixing ring 2, the inner wall of the fixing ring 2 is fixedly connected with a fixing cylinder, a placement groove is provided on the top of the fixing ring 2, two elastic plates are fixedly connected to the left and right sides of the sliding plate, the two elastic plates close to the movable sleeve are fixedly connected to the inside of the movable sleeve on the side away from the sliding plate, the two elastic plates close to the fixing cylinder are fixedly connected to the outer surface of the fixing cylinder on the side away from the sliding plate, the sliding plate is rotatably connected to an elliptical elastic plate on the side close to the rotating plate, the bottom of the elliptical elastic plate is fixedly connected to the side wall of the rotating plate, a plurality of adsorption holes are provided on the side of the elliptical elastic plate close to the fixing cylinder, the sliding plate is fixedly connected to a short shaft 2 on the side close to the rotating ring 2, and the short shaft 2 is slidably connected to the inside of the annular wave groove on the side away from the sliding plate.

[0010] Furthermore, an expansion mechanism is provided inside the second fixed ring, and the expansion mechanism includes an airbag ring fixedly connected to the inside of the placement groove, the bottom of the airbag ring is connected to the bottom outer wall of the second fixed ring, and the outer wall of the second fixed ring is provided with a fixed clamping ring, the outer surface of the fixed clamping ring is fixedly connected to the inside of the fixed tube, the inside of the fixed clamping ring is slidably connected with an airbag bag, the side of the airbag bag away from the fixed clamping ring is slidably connected with the second fixed clamping ring, the outer surface of the second fixed clamping ring is fixedly connected to the side walls of several rotating plates, and the second fixed clamping ring is made of elastic material.

[0011] Furthermore, a method for using a leakage protection device for a distribution box is provided, the method comprising the following steps: S1: Install the airbag; S2: insert the wire; S3: Push installation; S4: Deformation wrapping.

[0012] The present invention has the following beneficial effects: 1. According to the present invention, when the wire is passed through the hollow cylinder and moved downward, the wire will first be stuck between the multiple triangular plates, and then the hollow cylinder will be driven to move downward synchronously when the wire is pushed. When the hollow cylinder moves downward, the second plug rod will slide in the bidirectional thread groove inside the second rotating ring through the second plug rod, and the second plug rod will drive the second rotating ring to rotate when it slides. When the second rotating ring rotates, the second rotating ring will drive the rotating sleeve to rotate through multiple spring rods. When the rotating sleeve rotates, the arc groove on the surface of the rotating sleeve will squeeze the short shaft so that the short shaft drives the telescopic spring plate to compress. When the telescopic spring plate is compressed, it will drive the extension rod to move downward. When the extension rod moves downward, it will squeeze the multiple arc elastic plates through the fixed ring. After being squeezed, the arc elastic plate will shrink inward and hit the interface of the internal equipment of the main body. At the same time, when the hollow cylinder continues to move downward, the sliding groove on the hollow cylinder will drive the plug rod to move downward. When the plug rod moves downward, it will slide in the annular W groove inside the rotating ring. When the plug rod slides, it will drive the rotating ring to rotate. When the rotating ring rotates, it will drive the gear shaft to rotate through the gear ring. When the gear shaft rotates, it will push the moving sleeve downward through the obtuse plate and the connecting plate. When the moving sleeve moves downward, it will squeeze and contact multiple arc-shaped elastic plates at the interface of the equipment. At this time, the arc-shaped elastic plate will be squeezed by the moving sleeve and will bulge backward. At the same time, when the hollow cylinder moves downward, the downward movement of the hollow cylinder will squeeze the airbag ring. After the airbag ring is squeezed, the gas inside will enter the interior of the flexible belt 2. When the gas enters, the gas will squeeze the rotating plate. After the rotating plate is squeezed, it will stretch the tension spring and rotate. At the same time, the entry of gas will also cause the airbag bag to expand in the direction of the wire. When the airbag bag expands, it will fill the gap between the interface of the equipment and the wire, which can block external dust and water vapor, thereby reducing the leakage caused by the entry of external dust or water vapor during use, improving the sealing effect and ensuring the normal service life of the equipment and the wire.

[0013] 2. In the present invention, when the rotating plate is squeezed by the gas and the stretching spring is stretched and rotated, the rotation of the rotating plate will stretch the elliptical elastic plate. At the same time, when the movement of the hollow cylinder drives the rotating ring 2 to rotate through the plug rod 2, the rotation of the rotating ring 2 will drive the sliding plate to move upward through the annular wave groove and the short shaft 2 on the sliding plate. When the elliptical elastic plate is pulled and moves downward and the sliding plate moves upward, the space inside the elliptical elastic plate will gradually decrease under the upper and lower pulling forces, and the two sides of the elliptical elastic plate will contact and close relative to each other. At this time, when leakage occurs, the current generated by the leakage will break through the airbag bag. At this time, the inside of the flexible belt 2 The gas will be released, and the rotating plate will quickly bounce up and reset under the stretching of the rotating plate. When the rotating plate bounces up quickly, the sliding plate will be pushed upward through the elliptical elastic plate at the moment of bouncing up. At this time, the upward movement of the sliding plate will push the rotating ring 2 to move upward. The elliptical elastic plate will drive the hollow cylinder and the internal wires to move upward at the same time as the sliding plate bounces up and moves upward. At this time, the wires can be disconnected from the equipment interface, and the power supply can be quickly cut off while preventing the further expansion of the leakage accident, reducing the risk of fire caused by leakage, avoiding the further expansion of the leakage fault, and protecting the safety of other equipment in the distribution box.

[0014] 3. According to the present invention, when the airbag bag is broken down by the leakage current, the airbag bag will rupture. When the airbag bag ruptures, the rotating plate will be elastically reset under the tension of the tension spring. When the rotating plate is reset, it will push the elliptical elastic plate to reset. After the elliptical elastic plate is pushed by the rotating plate, the two sides of the elliptical elastic plate that were originally in contact with each other will be quickly separated under the push of the flexible belt 2 and the reset of the elliptical elastic plate. At this time, when the two sides of the elliptical elastic plate are separated, the internal space will be expanded instantaneously. At this time, the internal space will generate a certain adsorption force at the moment of expansion. At this time, the adsorption force will be generated through the multiple adsorption holes on the elliptical elastic plate to adsorb the fragments of the airbag bag that are broken after the breakdown of the airbag bag and impacted by the diffusion of the flexible belt 2, thereby reducing the residual fragments that appear under the impact of gas at the moment of the rupture of the airbag bag and remain in the connection part, reducing the situation that the insulation performance of the connection part may be reduced due to the residual fragments, reducing the residual conductive material from forming a leakage path between the interface and other grounding parts of the equipment, and posing a threat to the safety of personnel and equipment, and further improving the leakage protection efficiency.

[0015] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the support plate structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of the support plate of the present invention; Figure 6 It is a schematic diagram of the auxiliary mechanism of the present invention; Figure 7 It is a partial exploded view of the auxiliary mechanism of the present invention; Figure 8 It is a schematic diagram of the hollow cylinder structure of the present invention; Fig. 9 It is a schematic diagram of the structure of the inflation mechanism of the present invention; Fig.10 It is a schematic diagram of the structure of the adsorption mechanism of the present invention; Fig.11 The figure is a flow chart of the method for using the present invention.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows: In the figure: 1. main body; 101. support plate; 102. connecting groove; 103. annular groove; 2. connecting mechanism; 201. rotating ring; 202. gear shaft; 203. obtuse plate; 204. connecting plate; 205. moving sleeve; 3. moving mechanism; 301. telescopic rod; 302. hollow cylinder; 303. triangular plate; 304. plug rod; 4. auxiliary mechanism; 401. fixed ring; 402. rotating sleeve; 403. spring rod; 404. fixed frame; 405. rotating ring II; 5. pushing mechanism ; 501, telescopic spring plate; 502, short axis; 503, extension rod; 6, inflation mechanism; 601, arc-shaped elastic plate; 602, rotating plate; 603, tension spring; 604, flexible belt one; 605, flexible belt two; 7, adsorption mechanism; 701, fixed ring two; 702, sliding plate; 703, fixed cylinder; 704, elastic plate; 705, elliptical elastic plate; 8, expansion mechanism; 801, airbag ring; 802, fixed snap ring; 803, fixed snap ring two; 804, airbag bag. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 creative work are within the scope of protection of the present invention.

[0020] See also Figure 1 - Fig.11 As shown, the present invention is a leakage protection device for a distribution box, comprising a main body 1, a support plate 101 is fixedly connected to the inside of the main body 1, two connecting grooves 102 are provided inside the support plate 101, an annular groove 103 is provided on the inner wall of the connecting groove 102, and the top and bottom of the connecting groove 102 are both penetrated to the outer wall of the support plate 101, and also includes; The connecting mechanism 2 comprises a rotating ring 201 rotatably connected to the inner wall at the top of the annular groove 103, the inner wall of the rotating ring 201 is provided with an annular W groove, the outer surface of the rotating ring 201 is fixedly connected with a gear ring, the bottom of the gear ring is meshingly connected with a plurality of gear shafts 202, the outer surface of the gear shaft 202 is rotatably connected with a limit plate, the top of the limit plate is meshingly connected with the inner wall at the top of the annular groove 103, the side of the gear shaft 202 away from the rotating ring 201 is fixedly connected with an obtuse-angled plate 203, the side of the obtuse-angled plate 203 away from the gear shaft 202 is rotatably connected with a connecting plate 204, the side of the plurality of connecting plates 204 away from the obtuse-angled plate 203 is rotatably connected with a moving sleeve 205, and the outer surface of the moving sleeve 205 is provided with four rectangular grooves, The moving mechanism 3 includes a plurality of telescopic rods 301 fixedly connected to the inner wall at the top of the annular groove 103, a hollow cylinder 302 fixedly connected to the bottom of the plurality of telescopic rods 301, a sliding groove is provided on the outer surface of the hollow cylinder 302, an insertion rod 304 is slidably connected inside the sliding groove, a plurality of triangular plates 303 are fixedly connected to the inner wall of the hollow cylinder 302, and a second insertion rod is fixedly connected to the side of the hollow cylinder 302 away from the insertion rod 304. When the wire is passed through the hollow cylinder 302 and moved downward, the wire will first be stuck between the plurality of triangular plates 303, and then the hollow cylinder 302 will be driven to move downward synchronously when the wire is pushed, and the hollow cylinder 302 will slide in the bidirectional threaded groove inside the rotating ring 2 405 through the second insertion rod when moving downward.

[0021] An auxiliary mechanism 4 is provided inside the connecting groove 102, and the auxiliary mechanism 4 includes a fixed ring 401 rotatably connected to the outer surface of the hollow cylinder 302, and an extension plate is fixedly connected to the outer surface of the fixed ring 401, and the side of the extension plate away from the fixed ring 401 penetrates to the outer wall of the rectangular groove and is fixedly connected to the inner wall of the connecting groove 102, and the inner wall of the fixed ring 401 is rotatably connected to a rotating sleeve 402, and the outer surface of the rotating sleeve 402 is provided with two arc grooves, which will drive the rotating ring 2 405 to rotate when the inserted rod 2 slides, and the rotating ring 2 405 will drive the rotating sleeve 402 to rotate through multiple spring rods 403 when rotating.

[0022] A plurality of spring rods 403 are fixedly connected to the bottom of the rotating sleeve 402, and two fixed frames 404 are fixedly connected to the inner wall of the fixed ring 401 on the side away from the spring rods 403. A rotating ring 2 405 is fixedly connected to the side away from the rotating sleeve 402 of the plurality of spring rods 403. The outer surface of the rotating ring 2 405 is provided with an annular wave groove, and the inner wall of the rotating ring 2 405 is provided with a bidirectional thread groove. The inserted rod 2 is slidably connected to the inside of the bidirectional thread groove. When the rotating sleeve 402 rotates, the arc groove on its surface will squeeze the short shaft 502 so that the short shaft 502 drives the telescopic spring plate 501 to be compressed.

[0023] A pushing mechanism 5 is provided inside the rotating sleeve 402, and the pushing mechanism 5 includes two telescopic spring plates 501 rotatably connected to the inner wall of the rotating sleeve 402 away from the spring rod 403. The side of the telescopic spring plate 501 away from the spring rod 403 penetrates through the fixed frame 404 and extends to the outside of the rectangular groove. The extended end of the telescopic spring plate 501 is fixedly connected with the extension rod 503, and the ends of the two extension rods 503 away from the telescopic spring plate 501 are fixedly connected with a fixing ring. The side of the telescopic spring plate 501 close to the rotating sleeve 402 is fixedly connected with a short shaft 502, and the end of the short shaft 502 away from the telescopic spring plate 501 is slidably connected to the inside of the arc groove. A rectangular groove 2 is provided on the side of the telescopic spring plate 501 close to the short shaft 502. When compressed, the telescopic spring plate 501 will drive the extension rod 503 to move downward, and when the extension rod 503 moves downward, it will squeeze the multiple arc elastic plates 601 through the fixing ring.

[0024] The bottom of the movable sleeve 205 is provided with an inflating mechanism 6, which includes a plurality of arc-shaped elastic plates 601 fixedly connected to the side of the movable sleeve 205 away from the rotating ring 201, the inner wall of the arc-shaped elastic plate 601 is rotatably connected to the rotating plate 602, the top of the rotating plate 602 is fixedly connected to a tension spring 603, one end of the tension spring 603 away from the rotating plate 602 is fixedly connected to the side wall of the flexible belt 604, the side of the rotating plate 602 close to the tension spring 603 is fixedly connected to the arc-shaped elastic plate 601, and the flexible belt 604 is away from the rotating plate 602. One side of the rotating plate 602 is fixedly connected to the side wall of the arc-shaped elastic plate 601, and two flexible belts 605 are fixedly connected to the top of the rotating plate 602. The two flexible belts 605 are symmetrically distributed with the arc-shaped elastic plate 601 as the center, and the side of the flexible belt 605 away from the rotating plate 602 is fixedly connected to the side wall of the arc-shaped elastic plate 601. A flexible layer is fixedly connected between the two flexible belts 605. When gas enters, the gas will squeeze the rotating plate 602. After being squeezed, the rotating plate 602 will stretch the tension spring 603 and rotate.

[0025] The side wall of the arc-shaped elastic plate 601 is provided with an adsorption mechanism 7, which includes a plurality of sliding plates 702 arranged inside the movable sleeve 205, the outer surfaces of the plurality of sliding plates 702 are slidably connected with a fixing ring 2 701, the inner wall of the fixing ring 2 701 is fixedly connected with a fixing cylinder 703, a placement groove is provided on the top of the fixing ring 2 701, and two elastic plates 704 are fixedly connected to the left and right sides of the sliding plate 702, the two elastic plates 704 close to the side of the movable sleeve 205 are fixedly connected to the inside of the movable sleeve 205 on the side away from the sliding plate 702, and the two elastic plates 704 close to the side of the fixing cylinder 703 are fixedly connected to the outer surface of the fixing cylinder 703 on the side away from the sliding plate 702. The sliding plate 702 is fixedly connected to the rotating plate 602 on one side, and an elliptical elastic plate 705 is rotatably connected to the side wall of the rotating plate 602. A plurality of adsorption holes are provided on the elliptical elastic plate 705 on the side close to the fixed cylinder 703. A short axis 2 is fixedly connected to the rotating ring 2 405 on one side of the sliding plate 702. A side of the short axis 2 away from the sliding plate 702 is slidably connected to the inside of the annular wave groove. When the elliptical elastic plate 705 is pulled downward and the sliding plate 702 moves upward, the space inside the elliptical elastic plate 705 will gradually decrease under the pulling force from above and below, and the two sides of the elliptical elastic plate 705 will be in relative contact and closed.

[0026] An expansion mechanism 8 is provided inside the fixing ring 701, and the expansion mechanism 8 includes an airbag ring 801 fixedly connected to the inside of the placement groove, the bottom of the airbag ring 801 is connected to the bottom outer wall of the fixing ring 701, and the outer wall of the fixing ring 701 is provided with a fixing clamp 802, and the outer surface of the fixing clamp 802 is fixedly connected to the inside of the fixing tube 703, and the inside of the fixing clamp 802 is slidably connected to an airbag bag 804, and the side of the airbag bag 804 away from the fixing clamp 802 is slidably connected to the fixing clamp 2 803, and the outer surface of the fixing clamp 803 is fixedly connected to the side walls of several rotating plates 602, and the fixing clamp 2 803 is made of elastic material. At the same time, the entry of gas will also cause the airbag bag 804 to expand in the direction of the wire, and when the airbag bag 804 expands, the gap between the interface of the device and the wire will be filled.

[0027] A method for using a leakage protection device for a distribution box, the leakage protection device for a distribution box comprising the following steps: S1: Install the airbag 804; S2: insert the wire; S3: Push installation; S4: Deformation wrapping.

[0028] When in use, first clamp the airbag bag 804 between the fixed clamp ring 803 and the fixed clamp ring 802, then install the support plate 101 to the top of the device wiring port inside the main body 1, and then pass the cable through the connecting groove 102 to connect with the device inside the main body 1. When the cable passes through the connecting groove 102, it will drive the movable sleeve 205 to move downward through the hollow tube 302. When the movable sleeve 205 moves downward, the arc-shaped elastic plate 601 will cover the cable and the interface to provide dust and leakage protection.

[0029] When the wire passes through the hollow cylinder 302 and moves downward, the wire will first be stuck between the multiple triangular plates 303, and then the hollow cylinder 302 will be driven to move downward synchronously when the wire is pushed. When the hollow cylinder 302 moves downward, it will slide in the bidirectional thread groove inside the rotating ring 405 through the second insertion rod. When the second insertion rod slides, it will drive the rotating ring 405 to rotate. When the rotating ring 405 rotates, it will drive the rotating sleeve 402 to rotate through the multiple spring rods 403. When the rotating sleeve 402 rotates, the arc groove on the surface of the rotating sleeve 402 will squeeze the short shaft 502 so that the short shaft 502 carries The telescopic spring plate 501 is compressed, and the telescopic spring plate 501 drives the extension rod 503 to move downward when compressed. When the extension rod 503 moves downward, it squeezes the multiple arc-shaped elastic plates 601 through the fixed ring. After being squeezed, the arc-shaped elastic plates 601 will shrink inward and contact the interface of the internal equipment of the main body 1. At the same time, when the hollow cylinder 302 continues to move downward, the sliding groove on the hollow cylinder 302 will drive the insertion rod 304 to move downward. When the insertion rod 304 moves downward, it will slide in the annular W groove inside the rotating ring 201. When the insertion rod slides, it will drive the rotating ring 201 to When the rotating ring 201 rotates, the gear shaft 202 is driven to rotate through the gear ring. When the gear shaft 202 rotates, the moving sleeve 205 is pushed downward through the obtuse plate 203 and the connecting plate 204. When the moving sleeve 205 moves downward, it squeezes and contacts the multiple arc-shaped elastic plates 601 at the device interface. At this time, the arc-shaped elastic plates 601 are squeezed by the moving sleeve 205 and deformed to bulge backward. At the same time, when the hollow cylinder 302 moves downward, the downward movement of the hollow cylinder 302 squeezes the airbag ring 801. After the airbag ring 801 is squeezed, the gas inside it enters the flexible belt 26. 05, when the gas enters, the gas will squeeze the rotating plate 602. After being squeezed, the rotating plate 602 will stretch the tension spring 603 and rotate. At the same time, the entry of gas will also cause the airbag bag 804 to expand in the direction of the wire. When the airbag bag 804 expands, it will fill the gap between the interface of the device and the wire, and can block external dust and moisture. This can reduce leakage caused by the entry of external dust or moisture during use, improve the sealing effect, and extend the normal service life of the device and the wire.

[0030] When the rotating plate 602 is squeezed by the gas and the stretch spring 603 is stretched and rotated, the rotation of the rotating plate 602 will stretch the elliptical elastic plate 705. At the same time, when the movement of the hollow cylinder 302 drives the rotating ring 2 405 to rotate through the plug rod 2, the rotation of the rotating ring 2 405 will drive the sliding plate 702 to move upward through the annular wave groove and the short shaft 2 on the sliding plate 702. When the elliptical elastic plate 705 is pulled and moves downward and the sliding plate 702 moves upward, the space inside the elliptical elastic plate 705 will gradually decrease under the upper and lower pulling forces, and the two sides of the elliptical elastic plate 705 will contact and close relative to each other. At this time, when leakage occurs, the current generated by the leakage will break through the airbag bag 804. At this time, the flexible belt 2 60 The gas inside the rotating plate 602 will be released, and the rotating plate 602 will also bounce up and reset quickly under the stretching of the rotating plate 602. When the rotating plate 602 bounces up quickly, the sliding plate 702 will be pushed upward through the elliptical elastic plate 705 at the moment of the bouncing up of the rotating plate 602. At this time, the upward movement of the sliding plate 702 will push the rotating ring 2 405 to move upward. The elliptical elastic plate 705 will drive the hollow cylinder 302 and the internal wires to move upward at the same time as the sliding plate 702 bounces up and moves upward. At this time, the wires can be separated from the device interface, and the power supply can be quickly cut off while preventing the further expansion of the leakage accident, reducing the risk of fire caused by leakage, avoiding the further expansion of the leakage fault, and protecting the safety of other equipment in the distribution box.

[0031] When the rotating ring 405 moves upward, it will drive the rotating sleeve 402 to move upward synchronously. When the rotating sleeve 402 moves upward, it will be separated from the fixed ring arc elastic plate 601 through the extension rod 503. At this time, the arc elastic plate 601 will be reset under elasticity, thereby reducing contact with the device interface.

[0032] When the airbag bag 804 is broken down by the leakage current, the airbag bag 804 will rupture. When the airbag bag 804 ruptures, the rotating plate 602 will elastically reset under the tension of the tension spring 603. When the rotating plate 602 is reset, it will push the elliptical elastic plate 705 to reset. After the elliptical elastic plate 705 is pushed by the rotating plate 602, the two sides of the elliptical elastic plate 705 that were originally in contact with each other will be quickly separated under the push of the flexible belt 2 605 and the reset of the elliptical elastic plate 705. At this time, when the two sides of the elliptical elastic plate 705 are separated, the space inside it will expand instantly. At the moment of expansion, a certain adsorption force will be generated. At this time, the adsorption force will be generated through the multiple adsorption holes on the elliptical elastic plate 705 to adsorb the fragments of the airbag bag 804 that are ruptured after the breakdown of the airbag bag 804 and impacted by the diffusion of the flexible belt 2 605, thereby reducing the residual fragments that appear due to the impact of gas at the moment of the rupture of the airbag bag 804 and remain in the connection part, reducing the situation that the insulation performance of the connection part may be reduced due to the residual fragments, reducing the residual conductive material from forming a leakage path between the interface of the equipment and other grounding parts, and posing a threat to the safety of personnel and equipment, thereby further improving the leakage protection efficiency.

[0033] After the repair, only the airbag bag 804 needs to be replaced and it can be used again.

[0034] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A leakage protection device for a distribution box, comprising a main body (1), a support plate (101) being fixedly connected to the interior of the main body (1), two connecting grooves (102) being provided inside the support plate (101), an annular groove (103) being provided on the inner wall of the connecting groove (102), the top and the bottom of the connecting groove (102) both passing through the outer wall of the support plate (101), characterized in that: Also includes; A connecting mechanism (2), the connecting mechanism (2) comprising a rotating ring (201) rotatably connected to the inner wall of the top of the annular groove (103), the inner wall of the rotating ring (201) being provided with an annular W-groove, the outer surface of the rotating ring (201) being fixedly connected to a gear ring, the bottom of the gear ring being meshingly connected to a plurality of gear shafts (202), the outer surface of the gear shaft (202) being rotatably connected to a limit plate, the top of the limit plate being meshingly connected to the inner wall of the top of the annular groove (103), the side of the gear shaft (202) away from the rotating ring (201) being fixedly connected to an obtuse-angled plate (203), the side of the obtuse-angled plate (203) away from the gear shaft (202) being rotatably connected to a connecting plate (204), the sides of a plurality of connecting plates (204) away from the obtuse-angled plate (203) being rotatably connected to a moving sleeve (205), the outer surface of the moving sleeve (205) being provided with four rectangular grooves, A moving mechanism (3), the moving mechanism (3) comprising a plurality of telescopic rods (301) fixedly connected to the inner wall of the top of the annular groove (103), a hollow cylinder (302) fixedly connected to the bottom of the plurality of telescopic rods (301), a sliding groove being provided on the outer surface of the hollow cylinder (302), an insertion rod (304) being slidably connected inside the sliding groove, a plurality of triangular plates (303) being fixedly connected to the inner wall of the hollow cylinder (302), and a second insertion rod being fixedly connected to the side of the hollow cylinder (302) away from the insertion rod (304).

2. A leakage protection device for a distribution box according to claim 1, characterized in that: An auxiliary mechanism (4) is arranged inside the connecting groove (102), and the auxiliary mechanism (4) comprises a fixing ring (401) rotatably connected to the outer surface of the hollow cylinder (302), an extension plate is fixedly connected to the outer surface of the fixing ring (401), a side of the extension plate away from the fixing ring (401) penetrates to the outer wall of the rectangular groove and is fixedly connected to the inner wall of the connecting groove (102), the inner wall of the fixing ring (401) is rotatably connected to a rotating sleeve (402), and the outer surface of the rotating sleeve (402) is provided with two arc grooves.

3. A leakage protection device for a distribution box according to claim 2, characterized in that: A plurality of spring rods (403) are fixedly connected to the bottom of the rotating sleeve (402); two fixed frames (404) are fixedly connected to the inner wall of the fixed ring (401) on a side away from the spring rods (403); a plurality of spring rods (403) are fixedly connected to a second rotating ring (405) on a side away from the rotating sleeve (402); an annular wave groove is formed on the outer surface of the second rotating ring (405); a bidirectional thread groove is formed on the inner wall of the second rotating ring (405); and the second insertion rod is slidably connected inside the bidirectional thread groove.

4. A leakage protection device for a distribution box according to claim 3, characterized in that: A pushing mechanism (5) is arranged inside the rotating sleeve (402), and the pushing mechanism (5) comprises two telescopic spring plates (501) rotatably connected to the inner wall of the rotating sleeve (402) away from the spring rod (403), the side of the telescopic spring plate (501) away from the spring rod (403) penetrates through the fixed frame (404) and extends to the outside of the rectangular groove, the extended end of the telescopic spring plate (501) is fixedly connected to an extension rod (503), one end of the two extension rods (503) away from the telescopic spring plate (501) is fixedly connected to a fixing ring, the side of the telescopic spring plate (501) close to the rotating sleeve (402) is fixedly connected to a short shaft (502), one end of the short shaft (502) away from the telescopic spring plate (501) is slidably connected to the inside of the arc groove, and a rectangular groove 2 is provided on the side of the telescopic spring plate (501) close to the short shaft (502).

5. A leakage protection device for a distribution box according to claim 4, characterized in that: The bottom of the movable sleeve (205) is provided with an inflation mechanism (6), and the inflation mechanism (6) comprises a plurality of arc-shaped elastic plates (601) fixedly connected to a side of the movable sleeve (205) away from the rotating ring (201), the inner wall of the arc-shaped elastic plate (601) is rotatably connected to a rotating plate (602), the top of the rotating plate (602) is fixedly connected to a tension spring (603), one end of the tension spring (603) away from the rotating plate (602) is fixedly connected to the side wall of the flexible belt 1 (604), and the rotating plate (602) is close to the tension spring (603). 3) is fixedly connected to a curved elastic plate (601), a side of the flexible belt 1 (604) away from the rotating plate (602) is fixedly connected to the side wall of the curved elastic plate (601), the top of the rotating plate (602) is fixedly connected to two flexible belts 2 (605), the two flexible belts 2 (605) are symmetrically distributed with the curved elastic plate (601) as the center, a side of the flexible belt 2 (605) away from the rotating plate (602) is fixedly connected to the side wall of the curved elastic plate (601), and a flexible layer is fixedly connected between the two flexible belts 2 (605).

6. A leakage protection device for a distribution box according to claim 5, characterized in that: The side wall of the arc-shaped elastic plate (601) is provided with an adsorption mechanism (7), and the adsorption mechanism (7) comprises a plurality of sliding plates (702) arranged inside the movable sleeve (205), the outer surfaces of the plurality of sliding plates (702) are slidably connected to a second fixing ring (701), the inner wall of the second fixing ring (701) is fixedly connected to a fixing cylinder (703), a placement groove is provided on the top of the second fixing ring (701), and two elastic plates (704) are fixedly connected to the left and right sides of the sliding plate (702), and the two elastic plates (704) on the side close to the movable sleeve (205) and the side away from the sliding plate (702) are fixedly connected to the inside of the movable sleeve (205). The two elastic plates (704) on the side close to the fixed cylinder (703) and away from the sliding plate (702) are fixedly connected to the outer surface of the fixed cylinder (703); the side of the sliding plate (702) close to the rotating plate (602) is rotatably connected to an elliptical elastic plate (705); the bottom of the elliptical elastic plate (705) is fixedly connected to the side wall of the rotating plate (602); a plurality of adsorption holes are provided on the side of the elliptical elastic plate (705) close to the fixed cylinder (703); the side of the sliding plate (702) close to the rotating ring 2 (405) is fixedly connected to a short shaft 2; the side of the short shaft 2 away from the sliding plate (702) is slidably connected to the inside of the annular wave groove.

7. A leakage protection device for a distribution box according to claim 6, characterized in that: An expansion mechanism (8) is arranged inside the second fixing ring (701), and the expansion mechanism (8) includes an airbag ring (801) fixedly connected to the inside of the placement groove, the bottom of the airbag ring (801) is connected to the bottom outer wall of the second fixing ring (701), the outer wall of the second fixing ring (701) is arranged with a fixing snap ring (802), the outer surface of the fixing snap ring (802) is fixedly connected to the inside of the fixing tube (703), the inside of the fixing snap ring (802) is slidably connected to an airbag bag (804), the side of the airbag bag (804) away from the fixing snap ring (802) is slidably connected to the second fixing snap ring (803), the outer surface of the second fixing snap ring (803) is fixedly connected to the side walls of a plurality of the rotating plates (602), and the second fixing snap ring (803) is made of elastic material.

8. A method for using a leakage protection device for a distribution box, characterized in that: Using the leakage protection device for the distribution box as claimed in claim 7, the method comprises the following steps: S1: Install the airbag bag (804); S2: insert the wire; S3: Push installation; S4: Deformation wrapping.

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