An electrostatic release device for low voltage switch cabinet

Abstract

The present invention discloses an electrostatic release device for a low-voltage switch cabinet, and specifically relates to the technical field of low-voltage switch cabinets, including a low-voltage switch cabinet body, a door frame being rotatably installed on one side of the low-voltage switch cabinet body, a switch mechanism being arranged between the middle part of the door frame and the low-voltage switch cabinet body, and an electrostatic release mechanism being arranged between the middle part of the switch mechanism and the inner side of the door frame. The present invention, by arranging an electrostatic release mechanism and using an external drive mechanism in cooperation, places the electrostatic release mechanism in the switch mechanism, and can lead the static electricity generated by the human body into the ground through a contact piece, a first electrical connection wire, a first electrical connection protrusion, a first electrical connection piece, a second electrical connection wire, a current indicator light, a third electrical connection wire, an electric contact sliding protrusion, an electric contact sliding piece, a grounding shaft, a second electrical connection protrusion, and a grounding conductive piece, so as to realize the release of static electricity on the human body while opening the door frame, and prevent subsequent static electricity from affecting the equipment in the low-voltage switch cabinet body, thereby improving the use effect of the entire low-voltage switch cabinet.

Description

Technical Field

[0001] The invention relates to the technical field of low-voltage switch cabinets, and in particular to an electrostatic release device for a low-voltage switch cabinet. Background Art

[0002] As one of the important electrical equipment in the distribution network, the low-voltage switchgear is responsible for the opening and closing, control and protection of the distribution line. The low-voltage switchgear is suitable for power plants, petroleum, chemical, metallurgy, textile, high-rise buildings and other industries for power transmission, distribution and power conversion.

[0003] There are a large number of low-voltage equipment and metal components in the low-voltage switchgear. When the humidity in the air is low, static electricity will be generated. When the human body enters this environment, static electricity will accumulate on the body surface. Once it touches any metal component or low-voltage equipment, it will cause static electricity discharge and create a risk of electric shock. In addition, the accumulation of static electricity on high-voltage equipment and metal components may also cause equipment failure and reduce the service life of the equipment. For this reason, we propose an electrostatic release device for low-voltage switchgear to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide an electrostatic discharge device for a low-voltage switch cabinet to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electrostatic release device for a low-voltage switch cabinet, comprising a low-voltage switch cabinet body, a door frame being rotatably mounted on one side of the low-voltage switch cabinet body, a switch mechanism being arranged between the middle part of the door frame and the low-voltage switch cabinet body, an electrostatic release mechanism being arranged between the middle part of the switch mechanism and the inner side of the door frame, and an external drive mechanism being arranged between the switch mechanism and the electrostatic release mechanism.

[0006] Preferably, the switch mechanism includes an outer sleeve, one end of the outer sleeve is fixedly sleeved with a limiting outer ring, the outer sleeve is movably inserted in the middle of the door frame, the end of the outer sleeve away from the limiting outer ring is threadedly mounted with a limiting inner ring, the opposite sides of the limiting outer ring and the limiting inner ring are in contact with the outer wall and inner wall of the door frame respectively, the middle part of the outer sleeve is fixedly clamped with a bearing, the middle part of the bearing is fixedly clamped with a switch cylinder, one end of the switch cylinder extends out of the outer wall of the door frame and is fixedly mounted with a handle, and the end of the switch cylinder away from the handle extends into the low-voltage switch cabinet and is fixedly mounted with a switch limit block.

[0007] Preferably, the switch mechanism also includes a fixed frame, the position of the fixed frame corresponds horizontally to the position of the switch limit block, the fixed frame is fixedly installed on the low-voltage switch cabinet, a first magnetic block is fixedly installed on the side of the top of the switch limit block away from the switch barrel, a second magnetic block used in conjunction with the first magnetic block is fixedly installed on the upper surface of the inner wall of the fixed frame, the side of the switch limit block away from the switch barrel is movably clamped in the fixed frame, and the first magnetic block and the second magnetic block are magnetically connected to each other.

[0008] Preferably, the outer movable sleeve of the handle is provided with an insulating protective sleeve.

[0009] Preferably, the electrostatic release mechanism includes a limit clamp ring, two of which are provided, and the two limit clamp rings are fixedly clamped in the switch barrel, a pressing rod is movably inserted in the middle of the limit clamp ring, and an extrusion ring is fixedly sleeved on the outer side of the pressing rod, and the extrusion ring is located between the two limit clamp rings, and a first spring is provided between the extrusion ring and one of the limit clamp rings at the inner side, and the first spring is movably sleeved on the outer side of the pressing rod, and a limit protrusion is vertically installed on one end of the pressing rod, and the limit protrusion slides to clamp Connected to the switch barrel, the inner end of the outer sleeve is provided with a limiting groove corresponding to the limiting protrusion, the side of the limiting protrusion away from the pressing rod is movably clamped in the limiting groove, a first positioning protrusion is fixedly installed on the top of the inner end of the outer sleeve, and a first electrical connection protrusion is fixedly installed on the end of the limiting protrusion away from the pressing rod, one end of the pressing rod away from the limiting protrusion extends out of the outer end of the switch barrel, and one end of the pressing rod away from the limiting protrusion is fixedly clamped with a contact piece, and a first electrical connection wire is fixedly connected between the contact piece and the first electrical connection protrusion.

[0010] Preferably, the electrostatic release mechanism also includes a first wire trough and a second wire trough, the first wire trough and the second wire trough are both fixedly installed on the inner side of the door frame, the second wire trough is located below the first wire trough, the top of the first wire trough is fixedly provided with a first electrical contact piece used in conjunction with the first electrical contact protrusion, the first electrical contact piece has an arc-shaped structure, a second electrical connection wire is fixedly installed on the bottom end of the first electrical contact piece, a third electrical connection wire is fixedly installed in the second wire trough, a current indicator light is electrically connected between the second electrical connection wire and the third electrical connection wire, the current indicator light is fixedly installed on the door frame, a grounding assembly is provided on the side of the second wire trough away from the first wire trough, and a grounding conductive sheet used in conjunction with the grounding assembly is fixedly installed on the bottom of the low-voltage switch cabinet.

[0011] Preferably, the ground guide assembly includes a ground guide outer cylinder, which is fixedly mounted on one side of the bottom of the door frame, a lifting cylinder is movably provided in the ground guide outer cylinder, a limiting plate is fixedly mounted on the top of the lifting cylinder, a second spring is provided between the bottom end of the limiting plate and the top of the ground guide outer cylinder, the second spring is movably sleeved on the outside of the lifting cylinder, the bottom of the lifting cylinder extends out of the bottom end of the ground guide outer cylinder and is fixedly mounted with a positioning bottom ring, a grounding shaft is fixedly provided in the lifting cylinder, the bottom of the grounding shaft extends out of the bottom end of the door frame and is fixedly mounted with a second electric connection protrusion, an electric shock slide is fixedly mounted on the top of the grounding shaft, a side of the third electric connection wire away from the current indicator light is fixedly connected with an electric shock slide protrusion used in conjunction with the electric shock slide, the electric shock slide protrusion is fixedly mounted in the second wire groove, and the side of the electric shock slide protrusion away from the second wire groove is in contact with the electric shock slide.

[0012] Preferably, the external driving mechanism includes two vertically distributed guide frames, the guide frames are fixedly mounted on the inner wall of the door frame, the positions of the guide frames correspond vertically to the positions of the ground guide components, a pressing shaft is slidably inserted in the guide frame, the bottom end of the pressing shaft contacts the upper surface of the limiting plate, a pressing protrusion is provided on the top of the pressing shaft, and the pressing protrusion is rotatably mounted on the inner side of the door frame, a driving rod is integrally formed on the side of the pressing protrusion close to the switch mechanism, a supporting protrusion and a lifting protrusion are fixedly mounted on the side of the switch limit block away from the fixed frame, and the end of the supporting protrusion contacts the lower surface of the driving rod.

[0013] Preferably, a second positioning protrusion is fixedly mounted on a side of the inner wall of the door frame close to the switch mechanism.

[0014] Preferably, a lower surface of the second positioning protrusion contacts an upper surface of the driving rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. By setting up an electrostatic release mechanism and using an external drive mechanism in combination, the electrostatic release mechanism is placed in the switch mechanism, and the static electricity generated by the human body can be introduced into the underground through the contact piece, the first electrical connection wire, the first electrical connection protrusion, the first electrical connection piece, the second electrical connection wire, the current indicator light, the third electrical connection wire, the electric contact sliding protrusion, the electric contact sliding piece, the grounding shaft, the second electrical connection protrusion, and the grounding conductive piece, so that the static electricity of the human body can be released while the door frame is opened, thereby preventing subsequent static electricity from affecting the equipment in the low-voltage switch cabinet, thereby improving the use effect of the entire low-voltage switch cabinet.

[0017] 2. By setting a limit protrusion, the side of the limit protrusion away from the pressing rod is movably connected to the limit groove, so as to limit the rotation of the switch cylinder and the switch limit block, prevent the switch limit block from self-rotating, and improve the stability of the door frame closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the present invention.

[0020] Figure 2 Another structural schematic diagram of the present invention is shown in FIG.

[0021] Figure 3 For the present invention Figure 2 The enlarged view of point A in the middle.

[0022] Figure 4 is a schematic diagram of the structure of the switch mechanism, the electrostatic release mechanism and the external drive mechanism in the present invention,

[0023] Figure 5 is a schematic diagram of the structure of the switch mechanism in the present invention,

[0024] Figure 6 is another structural schematic diagram of the switch mechanism in the present invention,

[0025] Figure 7 is a schematic diagram of the structure of the electrostatic release mechanism in the present invention,

[0026] Figure 8 is another structural schematic diagram of the electrostatic release mechanism in the present invention,

[0027] Fig. 9 is a schematic diagram of the structure of the ground conductor assembly in the present invention,

[0028] Fig.10 It is a schematic diagram of the structure of the electric shock sliding protrusion and the electric shock sliding sheet in the present invention,

[0029] Fig.11 For the present invention Fig.10 Enlarged view of point B in the middle.

[0030] In the figure: 1, low-voltage switch cabinet; 2, door frame; 3, switch mechanism; 4, electrostatic release mechanism; 5, external drive mechanism; 31, outer sleeve; 32, limit outer ring; 33, limit inner ring; 34, bearing; 35, switch cylinder; 36, handle; 361, insulating protective sleeve; 37, switch limit block; 371, first magnetic block; 38, fixing frame; 381, second magnetic block; 41, limit clamp ring; 42, pressing rod; 43, extrusion ring; 44, first spring; 45, limit convex block; 451, limit groove; 452, first positioning convex; 46, first electrical connection convex; 461, contact piece; 462, first electrical connection Wire; 47, first wire slot; 471, first electrical connection piece; 472, second electrical connection wire; 473, current indicator light; 474, second wire slot; 475, third electrical connection wire; 48, grounding assembly; 481, grounding outer cylinder; 482, lifting cylinder; 483, limiting plate; 484, second spring; 485, grounding shaft; 486, second electrical connection protrusion; 487, electric contact slide; 488, positioning bottom ring; 489, electric contact slide protrusion; 49, grounding conductive sheet; 51, guide frame; 52, pressing shaft; 53, pressing protrusion; 54, driving rod; 55, supporting protrusion; 56, lifting protrusion; 57, second positioning protrusion. DETAILED DESCRIPTION

[0031] 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.

[0032] Example: Figure 1-11 As shown, the present invention provides an electrostatic release device for a low-voltage switch cabinet, comprising a low-voltage switch cabinet body 1, a door frame 2 is rotatably mounted on one side of the low-voltage switch cabinet body 1, a switch mechanism 3 is provided between the middle part of the door frame 2 and the low-voltage switch cabinet body 1, an electrostatic release mechanism 4 is provided between the middle part of the switch mechanism 3 and the inner side of the door frame 2, and an external drive mechanism 5 is provided between the switch mechanism 3 and the electrostatic release mechanism 4.

[0033] The switch mechanism 3 includes an outer sleeve 31, one end of which is fixedly sleeved with a limiting outer ring 32, and the outer sleeve 31 is movably inserted in the middle of the door frame 2. The end of the outer sleeve 31 away from the limiting outer ring 32 is threadedly installed with a limiting inner ring 33, and the opposite sides of the limiting outer ring 32 and the limiting inner ring 33 are in contact with the outer wall and the inner wall of the door frame 2 respectively, so as to perform a detachable installation and fixation between the switch mechanism 3 and the door frame 2. A bearing 34 is fixedly clamped in the middle of the outer sleeve 31, and a switch cylinder 35 is fixedly clamped in the middle of the bearing 34. One end of the switch cylinder 35 extends out of the outer wall of the door frame 2 and is fixedly installed with a handle 36, and one end of the switch cylinder 35 away from the handle 36 extends into the low-voltage switch cabinet 1 and is fixedly installed with a switch limiting block 37. The outer side of the handle 36 is movably sleeved with an insulating protective sleeve 361 to insulate the handle 36; the handle 36 is rotated by holding the handle 36, so as to drive the switch limiting block 37 to rotate.

[0034] The switch mechanism 3 also includes a fixed frame 38, the position of the fixed frame 38 and the position of the switch limit block 37 correspond horizontally, the fixed frame 38 is fixedly installed on the low-voltage switch cabinet 1, the first magnetic block 371 is fixedly installed on the side of the top of the switch limit block 37 away from the switch cylinder 35, and the second magnetic block 381 used in conjunction with the first magnetic block 371 is fixedly installed on the upper surface of the inner wall of the fixed frame 38. The side of the switch limit block 37 away from the switch cylinder 35 is movably clamped in the fixed frame 38, the first magnetic block 371 and the second magnetic block 381 are magnetically connected to each other, and the switch limit block 37 is magnetically fixed in the fixed frame 38, so as to fix the door frame 2. When opening the door frame 2, the handle 36 is turned to drive the switch limit block 37 to rotate, the first magnetic block 371 and the second magnetic block 381 are separated, the switch limit block 37 is separated from the fixed frame 38, and the door frame 2 is rotated to open.

[0035] The electrostatic release mechanism 4 includes a limit snap ring 41, two limit snap rings 41 are provided, and the two limit snap rings 41 are fixedly clamped in the switch barrel 35. A pressing rod 42 is movably inserted in the middle of the limit snap ring 41, and an extrusion ring 43 is fixedly sleeved on the outer side of the pressing rod 42. The extrusion ring 43 is located between the two limit snap rings 41. A first spring 44 is provided between the extrusion ring 43 and one of the limit snap rings 41 at the inner side. The first spring 44 is movably sleeved on the outer side of the pressing rod 42. A limit protrusion 45 is vertically installed at one end of the pressing rod 42, and the limit protrusion 45 is slidably clamped on the switch barrel 35. By pressing the pressing rod 42 with a finger, the extrusion ring 43 is driven to slide in the switch barrel 35 and squeeze the first spring 44. At the same time, the limit protrusion 45 slides on the switch barrel 35.

[0036] The inner end of the outer sleeve 31 is provided with a limiting groove 451 corresponding to the limiting protrusion 45, and the side of the limiting protrusion 45 away from the pressing rod 42 is movably engaged in the limiting groove 451. By providing the limiting protrusion 45, the side of the limiting protrusion 45 away from the pressing rod 42 is movably engaged in the limiting groove 451, so as to limit the rotation of the switch barrel 35 and the switch limiting block 37, prevent the switch limiting block 37 from self-rotation, and improve the closing stability of the door frame 2. When the limiting protrusion 45 slides on the switch barrel 35, the limiting protrusion 45 is separated from the limiting groove 451, and the switch limiting block 37 is released from the limit, which is convenient for the subsequent rotation of the switch limiting block 37, thereby driving the limiting protrusion 45 to rotate;

[0037] A first positioning protrusion 452 is fixedly installed on the top of the inner end of the outer sleeve 31, and the first positioning protrusion 452 fixes the rotation angle of the limiting protrusion 45 to prevent the limiting protrusion 45 and the switch limiting block 37 from excessive rotation. A first electrical connection protrusion 46 is fixedly installed on the end of the limiting protrusion 45 away from the pressing rod 42, and the end of the pressing rod 42 away from the limiting protrusion 45 extends out of the outer end of the switch tube 35. A contact piece 461 is fixedly clamped on the end of the pressing rod 42 away from the limiting protrusion 45, and a first electrical connection wire 462 is fixedly connected between the contact piece 461 and the first electrical connection protrusion 46.

[0038] The electrostatic release mechanism 4 further includes a first wire groove 47 and a second wire groove 474. The first wire groove 47 and the second wire groove 474 are both fixedly installed on the inner side of the door frame 2. The second wire groove 474 is located below the first wire groove 47. A first electrical contact piece 471 used in conjunction with the first electrical contact protrusion 46 is fixedly provided on the top of the first wire groove 47. The first electrical contact piece 471 is in an arc-shaped structure. When the pressing rod 42 is pressed, the limiting protrusion 45 slides on the switch cylinder 35, driving the first electrical contact protrusion 46 to move to a side close to the first electrical contact piece 471, so that the first electrical contact protrusion 46 and the first electrical contact piece 471 are in contact. When the limiting protrusion 45 rotates to drive the first electrical contact protrusion 46 to rotate, the first electrical contact protrusion 46 and the first electrical contact piece 471 are always in contact, so that the first electrical contact protrusion 46 and the first electrical contact piece 471 are always connected.

[0039] A second electrical connection wire 472 is fixedly installed at the bottom end of the first electrical connection piece 471, a third electrical connection wire 475 is fixedly installed in the second wire groove 474, a current indicator light 473 is electrically connected between the second electrical connection wire 472 and the third electrical connection wire 475, the current indicator light 473 is fixedly installed on the door frame 2, a grounding assembly 48 is provided on the side of the second wire groove 474 away from the first wire groove 47, and a grounding conductive sheet 49 used in conjunction with the grounding assembly 48 is fixedly installed at the bottom of the low-voltage switch cabinet 1.

[0040] The ground guide assembly 48 includes a ground guide outer cylinder 481, which is fixedly installed on one side of the bottom of the door frame 2. A lifting cylinder 482 is movably provided in the ground guide outer cylinder 481. A limiting plate 483 is fixedly installed on the top of the lifting cylinder 482. A second spring 484 is provided between the bottom end of the limiting plate 483 and the top end of the ground guide outer cylinder 481. The second spring 484 is movably sleeved on the outside of the lifting cylinder 482. The bottom of the lifting cylinder 482 extends out of the bottom end of the ground guide outer cylinder 481 and is fixedly installed with a positioning bottom ring 488. The positioning bottom ring 488 limits the bottom of the lifting cylinder 482 to prevent the lifting cylinder 482 from detaching from the ground guide outer cylinder 481.

[0041] A grounding shaft 485 is fixedly provided in the lifting cylinder 482, and the bottom of the grounding shaft 485 extends out of the bottom end of the door frame 2 and is fixedly installed with a second electrical connection protrusion 486, and an electric shock slide 487 is fixedly installed on the top of the grounding shaft 485. The side of the third electrical connection wire 475 away from the current indicator light 473 is fixedly connected with an electric shock slide protrusion 489 used in conjunction with the electric shock slide 487, and the electric shock slide protrusion 489 is fixedly installed in the second wire groove 474, and the side of the electric shock slide protrusion 489 away from the second wire groove 474 is in contact with the electric shock slide 487. When the limit plate 483 is pressed downward, the lifting cylinder 482, the grounding shaft 485, the second electrical connection protrusion 486 and the electric shock slide 487 are driven to move downward, and the side of the electric shock slide protrusion 489 away from the second wire groove 474 is always in contact with the electric shock slide 487. At the same time, the second electrical connection protrusion 486 is in contact with the grounding conductive sheet 49, so as to realize The contact piece 461, the first electrical connection wire 462, the first electrical connection protrusion 46, the first electrical connection piece 471, the second electrical connection wire 472, the current indicator light 473, the third electrical connection wire 475, the electric contact protrusion 489, the electric contact slide 487, the grounding shaft 485, the second electrical connection protrusion 486, and the grounding conductive sheet 49 are connected to each other, so that the static electricity generated by the human body can be introduced into the ground through the contact piece 461, the first electrical connection wire 462, the first electrical connection protrusion 46, the first electrical connection piece 471, the second electrical connection wire 472, the current indicator light 473, the third electrical connection wire 475, the electric contact protrusion 489, the electric contact slide 487, the grounding shaft 485, the second electrical connection protrusion 486, and the grounding conductive sheet 49, so that the static electricity of the human body can be released while the door frame 2 is opened, so as to prevent the subsequent static electricity from affecting the equipment in the low-voltage switch cabinet 1, thereby improving the use effect of the entire low-voltage switch cabinet.

[0042] The external drive mechanism 5 includes two vertically distributed guide frames 51, and the guide frames 51 are fixedly installed on the inner wall of the door frame 2. The position of the guide frames 51 corresponds vertically to the position of the ground guide assembly 48. A pressing shaft 52 is slidably inserted in the guide frame 51. The bottom end of the pressing shaft 52 contacts the upper surface of the limit plate 483. A pressing protrusion 53 is provided on the top of the pressing shaft 52. The pressing protrusion 53 is rotatably installed on the inner side of the door frame 2. A driving rod 54 is integrally formed on the side of the pressing protrusion 53 close to the switch mechanism 3. A supporting protrusion 55 and a lifting protrusion 56 are fixedly installed on the side of the limit block 37 away from the fixed frame 38, and the end of the supporting protrusion 55 contacts the lower surface of the driving rod 54. When the door frame 2 is closed, the end of the supporting protrusion 55 contacts the lower surface of the driving rod 54, and the supporting protrusion 55 supports the driving rod 54. When the switch limit block 37 rotates, the supporting protrusion 55 and the lifting protrusion 56 are driven to rotate, and the lifting protrusion 56 lifts the driving rod 54, driving the driving rod 54 and the pressing protrusion 53 to rotate, thereby synchronously pressing the limit plate 483 downward through the pressing protrusion 53.

[0043] A second positioning protrusion 57 is fixedly mounted on one side of the inner wall of the door frame 2 close to the switch mechanism 3; the lower surface of the second positioning protrusion 57 contacts the upper surface of the driving rod 54, and the rotation of the driving rod 54 is limited by providing the second positioning protrusion 57.

[0044] Working principle: When the door frame 2 is closed, the second electrical connection protrusion 486 does not contact the grounding conductive sheet 49, and the side of the switch limit block 37 away from the switch cylinder 35 is movably clamped in the fixed frame 38, the first magnetic block 371 and the second magnetic block 381 are magnetically connected to each other, and the side of the limit protrusion 45 away from the pressing rod 42 is movably clamped in the limit groove 451, so as to limit the rotation of the switch cylinder 35 and the switch limit block 37, prevent the switch limit block 37 from self-rotation, and improve the stability of the door frame 2 when closed;

[0045] When the door frame 2 needs to be opened to operate the internal equipment, the finger presses the pressing rod 42, and the finger contacts the contact piece 461, driving the extrusion ring 43 to slide in the switch cylinder 35 and squeeze the first spring 44. At the same time, the limiting protrusion 45 slides on the switch cylinder 35, the limiting protrusion 45 is separated from the limiting groove 451, and the switch limiting block 37 is released from the limit;

[0046] At the same time, the first electrical connection protrusion 46 is driven to move toward the side close to the first electrical contact piece 471, so that the first electrical connection protrusion 46 and the first electrical contact piece 471 are in contact, and when the limiting protrusion 45 rotates to drive the first electrical connection protrusion 46 to rotate, the first electrical connection protrusion 46 and the first electrical contact piece 471 are always in contact, so that the first electrical connection protrusion 46 and the first electrical contact piece 471 are always connected;

[0047] Then, the handle 36 is turned to drive the switch limit block 37 to rotate, the first magnetic block 371 and the second magnetic block 381 are separated, and the switch limit block 37 is separated from the fixed frame 38. When the switch limit block 37 rotates, the supporting protrusion 55 and the lifting protrusion 56 are driven to rotate, and the lifting protrusion 56 lifts the driving rod 54, driving the driving rod 54 and the pressing protrusion 53 to rotate, so that the limit plate 483 is pressed downward synchronously through the pressing protrusion 53.

[0048] The lifting cylinder 482, the grounding shaft 485, the second electrical connection protrusion 486 and the electric contact slide 487 are driven to move downward, and the electric contact slide protrusion 489 away from the side of the second wire groove 474 is always in contact with the electric contact slide 487. At the same time, the second electrical connection protrusion 486 is in contact with the grounding conductive sheet 49, so as to realize the contact sheet 461, the first electrical connection wire 462, the first electrical connection protrusion 46, the first electrical connection sheet 471, the second electrical connection wire 472, the current indicator light 473, the third electrical connection wire 475, the electric contact slide protrusion 489, the electric contact slide 487, the grounding shaft 485, the second electrical connection protrusion 486, the grounding conductive sheet 49, and the electric ... The plates 49 are connected to each other, so that the static electricity generated by the human body can be introduced into the ground through the contact plate 461, the first electrical connection wire 462, the first electrical connection protrusion 46, the first electrical connection plate 471, the second electrical connection wire 472, the current indicator light 473, the third electrical connection wire 475, the electric contact sliding protrusion 489, the electric contact sliding plate 487, the grounding shaft 485, the second electrical connection protrusion 486, and the grounding conductive plate 49, so that when the door frame 2 is opened, the static electricity of the human body is released, and the subsequent static electricity is prevented from affecting the equipment in the low-voltage switch cabinet 1, thereby improving the use effect of the entire low-voltage switch cabinet;

[0049] At the same time, static electricity passes through the current indicator light 473, and the current indicator light 473 lights up, indicating that static electricity is flowing, until the current indicator light 473 turns off, indicating that the static electricity is released;

[0050] After the door frame 2 is subsequently closed, the pressing protrusion 53 no longer presses the limit plate 483 downward. At this time, the second spring 484 is reset, driving the lifting cylinder 482, the grounding shaft 485, the second electrical contact protrusion 486 and the electric contact sliding plate 487 to move upward, and the second electrical contact protrusion 486 does not contact the grounding conductive sheet 49.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrostatic discharge device for a low-voltage switch cabinet, comprising a low-voltage switch cabinet body, characterized in that: A door frame is rotatably mounted on one side of the low-voltage switch cabinet, a switch mechanism is provided between the middle of the door frame and the low-voltage switch cabinet, an electrostatic release mechanism is provided between the middle of the switch mechanism and the inner side of the door frame, and an external drive mechanism is provided between the switch mechanism and the electrostatic release mechanism; The switch mechanism comprises an outer sleeve and a switch cylinder; The electrostatic release mechanism includes a limit clamp ring, two of which are provided, and the two limit clamp rings are fixedly clamped in the switch cylinder, a pressing rod is movably inserted in the middle of the limit clamp ring, and an extrusion ring is fixedly sleeved on the outer side of the pressing rod, and the extrusion ring is located between the two limit clamp rings. A first spring is provided between the extrusion ring and one of the limit clamp rings at the inner side, and the first spring is movably sleeved on the outer side of the pressing rod, and a limit protrusion is vertically installed at one end of the pressing rod, and the limit protrusion is slidably clamped in On the switch barrel, a limiting groove corresponding to the limiting protrusion is opened at the inner end of the outer sleeve, and the side of the limiting protrusion away from the pressing rod is movably clamped in the limiting groove, and a first positioning protrusion is fixedly installed on the top of the inner end of the outer sleeve, and a first electrical connection protrusion is fixedly installed on the end of the limiting protrusion away from the pressing rod, and one end of the pressing rod away from the limiting protrusion extends out of the outer end of the switch barrel, and one end of the pressing rod away from the limiting protrusion is fixedly clamped with a contact piece, and a first electrical connection wire is fixedly connected between the contact piece and the first electrical connection protrusion.

2. The electrostatic release device for a low-voltage switch cabinet according to claim 1, characterized in that: A limiting outer ring is fixedly sleeved on one end of the outer sleeve, and the outer sleeve is movably inserted in the middle of the door frame. A limiting inner ring is threadedly installed on one end of the outer sleeve away from the limiting outer ring, and the opposite sides of the limiting outer ring and the limiting inner ring are in contact with the outer wall and the inner wall of the door frame respectively. A bearing is fixedly clamped on the middle of the outer sleeve, and a switch cylinder is fixedly clamped on the middle of the bearing. One end of the switch cylinder extends out of the outer wall of the door frame and is fixedly installed with a handle, and one end of the switch cylinder away from the handle extends into the low-voltage switch cabinet and is fixedly installed with a switch limiting block.

3. The electrostatic release device for a low-voltage switch cabinet according to claim 2, characterized in that: The switch mechanism also includes a fixed frame, the position of the fixed frame and the position of the switch limit block correspond horizontally, the fixed frame is fixedly installed on the low-voltage switch cabinet, a first magnetic block is fixedly installed on the side of the top of the switch limit block away from the switch barrel, a second magnetic block used in conjunction with the first magnetic block is fixedly installed on the upper surface of the inner wall of the fixed frame, a side of the switch limit block away from the switch barrel is movably clamped in the fixed frame, and the first magnetic block and the second magnetic block are magnetically connected to each other.

4. The electrostatic release device for a low-voltage switch cabinet according to claim 2, characterized in that: The outer movable sleeve of the handle is provided with an insulating protective sleeve.

5. The electrostatic release device for a low-voltage switch cabinet according to claim 2, characterized in that: The electrostatic release mechanism also includes a first wire trough and a second wire trough, the first wire trough and the second wire trough are both fixedly installed on the inner side of the door frame, the second wire trough is located below the first wire trough, the top of the first wire trough is fixedly provided with a first electrical contact piece used in conjunction with the first electrical contact protrusion, the first electrical contact piece is in an arc-shaped structure, a second electrical connection wire is fixedly installed on the bottom end of the first electrical contact piece, a third electrical connection wire is fixedly installed in the second wire trough, a current indicator light is electrically connected between the second electrical connection wire and the third electrical connection wire, the current indicator light is fixedly installed on the door frame, a grounding assembly is provided on the side of the second wire trough away from the first wire trough, and a grounding conductive sheet used in conjunction with the grounding assembly is fixedly installed on the bottom of the low-voltage switch cabinet.

6. The electrostatic release device for a low-voltage switch cabinet according to claim 5, characterized in that: The ground guide assembly includes a ground guide outer cylinder, which is fixedly installed on one side of the bottom of the door frame, a lifting cylinder is movably provided in the ground guide outer cylinder, a limiting plate is fixedly installed on the top of the lifting cylinder, a second spring is provided between the bottom end of the limiting plate and the top of the ground guide outer cylinder, the second spring is movably sleeved on the outside of the lifting cylinder, the bottom of the lifting cylinder extends out of the bottom end of the ground guide outer cylinder and is fixedly installed with a positioning bottom ring, a grounding shaft is fixedly provided in the lifting cylinder, the bottom of the grounding shaft extends out of the bottom end of the door frame and is fixedly installed with a second electric connection protrusion, an electric shock slide is fixedly installed on the top of the grounding shaft, the side of the third electric connection wire away from the current indicator light is fixedly connected with an electric shock slide protrusion used in conjunction with the electric shock slide, the electric shock slide protrusion is fixedly installed in the second wire groove, and the side of the electric shock slide protrusion away from the second wire groove is in contact with the electric shock slide.

7. The electrostatic release device for a low-voltage switch cabinet according to claim 6, characterized in that: The external driving mechanism includes two vertically distributed guide frames, the guide frames are fixedly installed on the inner wall of the door frame, the positions of the guide frames correspond vertically to the positions of the ground guide components, a pressing shaft is slidably inserted in the guide frame, the bottom end of the pressing shaft contacts the upper surface of the limiting plate, the top end of the pressing shaft is provided with a pressing convex, the pressing convex is rotatably installed on the inner side of the door frame, a driving rod is integrally formed on the side of the pressing convex close to the switch mechanism, a supporting convex and a lifting convex are fixedly installed on the side of the switch limit block away from the fixed frame, and the end of the supporting convex contacts the lower surface of the driving rod.

8. The electrostatic release device for a low-voltage switch cabinet according to claim 7, characterized in that: A second positioning protrusion is fixedly mounted on one side of the inner wall of the door frame close to the switch mechanism.

9. The electrostatic release device for a low-voltage switch cabinet according to claim 8, characterized in that: The lower surface of the second positioning protrusion contacts the upper surface of the driving rod.

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