Portable dustproof bin for electrical equipment opening maintenance

Abstract

The invention belongs to the technical field of portable dustproof bins, and discloses a portable dustproof bin for electrical equipment open maintenance, which comprises a lower plate structure and an upper plate structure arranged above the lower plate structure, and further comprises waterproof cloth mounted between the lower plate structure and the upper plate structure; the sealing assemblies are symmetrically arranged on the upper plate structure and used for improving the sealing performance of the edge of the waterproof cloth. According to the scheme, an operator lifts upwards to drive movement, driving and rotation, when the three parts are in a vertical state and are in a straight line, the three parts move upwards under the action of body elasticity, the top end of the three parts penetrates through the middle part and enters the middle part to be pushed upwards to be clamped in the middle part, and the three parts also drive the three parts to move upwards to enable one end to be clamped in the middle part, so that the three parts are respectively kept in a vertical state; and then an operator clamps the upper parts into the upper parts and the lower parts respectively, and then the operator passes through and adsorbs and installs the whole bin body on a shell of the electrical equipment, so that the construction of the closed bin body is quickly completed.

Description

Technical Field

[0001] The invention belongs to the technical field of portable dustproof bins, and in particular is a portable dustproof bin used for opening and repairing electrical equipment. Background Art

[0002] When operators repair some precision electrical equipment, in order to prevent dust from entering the interior of the equipment, operators usually need to wear dustproof clothing and go through air showers before entering. When opening the equipment door, in order to prevent the outside air from carrying dust into the interior of the equipment, the air in front of the door needs to be dust-purified. The prior art generally makes an independent air shower channel in front of or behind the door, or uses plates to temporarily build a dustproof bin in front of the door, and sends external air into the dustproof bin through a fan with a filter to clean the dust on the operator. However, the dustproof bin built with plates is not only inconvenient to disassemble and assemble, but the plates are also heavy and not easy to carry. At the same time, making an independent air shower channel in front of or behind the door will not only increase the size of the equipment, but the air shower channel itself is a structure that requires frequent maintenance, which will increase the maintenance cost. Therefore, in order to solve the above problems, a portable dustproof bin for opening and repairing electrical equipment is proposed. Summary of the invention

[0003] In order to solve the problems raised in the above background technology, the present invention provides a portable dustproof bin for opening and repairing electrical equipment, which solves the problems of inconvenient construction and high maintenance cost of existing dustproof bins.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a portable dustproof bin for opening and repairing electrical equipment, comprising a lower plate structure and an upper plate structure arranged above the lower plate structure, and further comprising: a waterproof cloth installed between the lower plate structure and the upper plate structure; a sealing assembly symmetrically arranged on the upper plate structure to increase the sealing of the edge of the waterproof cloth; The lower plate structure includes a lower plate body and a bracket assembly one which is symmetrically and staggeredly hinged inside the lower plate body, one side of the lower plate body is symmetrically and fixedly connected with a magnet one, a ventilation pipe one is also fixedly connected inside the lower plate body, one end of the ventilation pipe one extends to the outside of the lower plate body, the part of the ventilation pipe one located inside the lower plate body is U-shaped and is provided with a plurality of outlets facing the inside of the lower plate body, an exhaust pipe one is also symmetrically opened inside the lower plate body, and the ventilation pipe one is connected with the outside through the lower plate body and the exhaust pipe one; The upper plate structure comprises an upper plate body installed above the lower plate body, a magnet assembly located above the magnet one is symmetrically arranged on one side of the upper plate body, a bracket assembly 2 located above the bracket assembly 1 is symmetrically and staggeredly hinged on the magnet assembly, and the other end of the bracket assembly 2 is hinged to the bracket assembly 1; The lower plate body and the upper plate body are symmetrically provided with a set of slide rail grooves on opposite sides; The waterproof cloth is symmetrically provided with joints at the top and bottom, and the ends of the joints can be put into the slide rail grooves. A zipper is also provided in the middle of the waterproof cloth.

[0005] Preferably, the bracket assembly 1 includes a bracket 1 hinged to the inside of the lower plate body, the bracket 1 is elastically supported by an elastic rod 1, one end of the elastic rod 1 is elastically connected to an elastic block located inside the bracket 1, the bracket 1 is hinged to an end away from the elastic block with a connecting piece, the end of the elastic rod 1 close to the connecting piece abuts against the inner wall of the connecting piece in an initial state, and a card slot capable of cooperating with one end of the elastic block is also provided inside the lower plate body; A shifting block is also arranged in the middle of the elastic rod, and two sides of the shifting block extend to the outside of the bracket.

[0006] Preferably, the bracket assembly 2 comprises a bracket 2 hinged inside the upper plate body, the bracket 2 elastically supports a second elastic rod inside, one end of the second elastic rod in an initial state abuts against the connecting piece, and the upper plate body is also provided with a bayonet capable of cooperating with the other end of the second elastic rod; When the support 1, the connecting piece and the support 2 are in a vertical state, the elastic rod 1 can move upward through the connecting piece due to its own elastic force and push the elastic rod 2 upward.

[0007] Preferably, the cross section of one end of the elastic rod 1 close to the connecting piece is conical and can be engaged with the end of the elastic rod 2.

[0008] Preferably, the ventilation pipe is also fixedly connected to a secondary pipe; The sealing assembly comprises a reel that is elastically connected to the upper plate body, a strip-shaped airbag is wound on the shaft portion of the reel, a free end of the strip-shaped airbag passes through the upper plate body and is fixedly connected to the lower plate body, and the top end of the auxiliary pipeline is connected to the free end of the strip-shaped airbag through the lower plate body; The projection of the extended line of the slide rail groove overlaps with the strip-shaped airbag.

[0009] Preferably, a through hole is formed at one end of the strip-shaped airbag away from the lower plate body; A second ventilation pipe is also provided inside the upper plate body, and a second exhaust pipe is also symmetrically opened on the upper plate body. The outlet of the second ventilation pipe is connected with the outside through the upper plate body and the second exhaust pipe, and one end of the second ventilation pipe is connected with the strip airbag through the cavity of the upper plate body. The upper plate body is U-shaped as a whole and is provided with a plurality of outlets facing the interior of the upper plate body.

[0010] Preferably, the magnet assembly comprises a second ventilation pipe elastically connected to the interior of the upper plate body, the second ventilation pipe is located inside the upper plate body in an initial state, the interior of the upper plate body is also movably connected with support plates located on both sides of the second ventilation pipe, the support plates are provided with an inclined groove and a vertical groove, and the two ends of the second ventilation pipe are also fixedly connected with a second convex shaft that can slide in the inclined groove; The upper plate body is also fixedly connected with a convex shaft 1 which can slide in the vertical groove and has a diameter smaller than the width of the vertical groove.

[0011] Preferably, the waterproof cloth can be folded and placed between the lower plate body and the upper plate body.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The above scheme drives the bracket two to move by lifting the upper plate body upwards, and the bracket two will also drive the connecting piece and the bracket one to rotate. When the three are all in a vertical state and in a straight line, the elastic rod one moves upward under the action of its own elastic force, and its top end passes through the middle of the connecting piece and enters the bracket two to push the elastic rod two upward and snap into the snap-in slot. The elastic rod one will also drive the elastic card block upward and snap one end of the elastic card block into the card slot, thereby keeping the bracket two and the bracket one in a vertical state respectively. Then the operator snaps the joints on the waterproof cloth into the slide rail grooves on the upper plate body and the lower plate body respectively, and then the operator absorbs and installs the entire warehouse body on the housing of the electrical equipment through the magnet one and the magnet assembly, thereby quickly completing the construction of the closed warehouse body, which is convenient for the operator to use. At the same time, since the waterproof cloth can be disassembled and cleaned, it also reduces the difficulty of maintenance for the operator; In the above scheme, the strip airbag is released by the upper plate body moving upward. When the waterproof cloth is installed on the upper plate body and the lower plate body, the side edge of the waterproof cloth will be close to the part of the strip airbag located between the upper plate body and the lower plate body. Then the operator connects the fan with the filter to the end of the ventilation pipe located outside the lower plate body. At this time, the gas will be blown to the bottom of the warehouse through the outlet of the ventilation pipe. At the same time, the gas will also pass through the strip airbag and expand the strip airbag, so that the strip airbag is more closely attached to the side edges of the electrical equipment and the waterproof cloth, thereby increasing the sealing of the inside of the dustproof warehouse; When the magnet assembly approaches the casing of the electrical equipment through the above-mentioned scheme, the spring combination magnet will move toward the casing of the electrical equipment and be adsorbed thereon. The movement of the spring combination magnet will also drive the support plate to move in the inclined groove. At this time, the support plate will move vertically downward under the limit of the convex shaft 1, thereby increasing the contact area between the upper plate body and the electrical equipment, so as to ensure that the upper plate body can be more stably adsorbed on the casing of the electrical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 The enlarged view of point A in the middle; Figure 3 It is a schematic diagram of the coordination between the lower plate structure and the upper plate structure of the present invention; Figure 4 for Figure 3 Sectional plan view at AA in the middle; Figure 5 It is a partial cross-sectional structural schematic diagram of a stent 1 of the present invention; Figure 6 is a schematic cross-sectional structural diagram of the sealing assembly of the present invention; Figure 7 for Figure 6 Enlarged view of point C in the middle; Figure 8 It is a partial cross-sectional structural schematic diagram of the upper plate body of the present invention; Fig. 9 It is a partial cross-sectional structural schematic diagram of the ventilation pipe 2 of the present invention; Fig.10 It is a schematic diagram of the unfolded structure of the support assembly and the support assembly 2 of the present invention.

[0014] In the figure: 1, lower plate structure; 11, lower plate body; 12, bracket assembly 1; 121, bracket 1; 122, elastic rod 1; 1221, shift block; 123, elastic block; 124, connector; 125, slot; 13, magnet 1; 14, ventilation pipe 1; 141, auxiliary pipe; 15, exhaust pipe 1; 2, upper plate structure; 21, upper plate body; 211, ventilation pipe 2; 212, exhaust pipe 2; 2 13. convex shaft one; 22. magnet assembly; 221. spring combination magnet; 222. convex shaft two; 223. support plate; 224. oblique groove; 225. vertical groove; 23. bracket assembly two; 231. bracket two; 232. elastic rod two; 233. bayonet; 3. slide rail groove; 4. waterproof cloth; 41. joint; 42. zipper; 5. sealing assembly; 51. reel; 52. strip airbag; 521. through hole. DETAILED DESCRIPTION

[0015] 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.

[0016] like Figures 1 to 10As shown, the present invention provides a portable dustproof bin for opening and repairing electrical equipment, comprising a lower plate structure 1 and an upper plate structure 2 arranged above the lower plate structure 1, and further comprising: a waterproof cloth 4, which is used to be installed between the lower plate structure 1 and the upper plate structure 2; a sealing assembly 5, which is symmetrically arranged on the upper plate structure 2 and is used to increase the sealing performance of the edge of the waterproof cloth 4; The lower plate structure 1 includes a lower plate body 11 and a bracket assembly 12 which is symmetrically and staggeredly hinged inside the lower plate body 11. A magnet 13 is symmetrically and fixedly connected to one side of the lower plate body 11. A ventilation pipe 14 is also fixedly connected inside the lower plate body 11. One end of the ventilation pipe 14 extends to the outside of the lower plate body 11. The part of the ventilation pipe 14 located inside the lower plate body 11 is U-shaped and is provided with a plurality of outlets facing the inside of the lower plate body 11. An exhaust pipe 15 is also symmetrically opened inside the lower plate body 11. The ventilation pipe 14 is connected to the outside through the lower plate body 11 and the exhaust pipe 15. The upper plate structure 2 includes an upper plate body 21 installed above the lower plate body 11, and a magnet assembly 22 located above the magnet 13 is symmetrically arranged on one side of the upper plate body 21. A bracket assembly 23 located above the bracket assembly 12 is also symmetrically and staggeredly hinged on the magnet assembly 22, and the other end of the bracket assembly 23 is hinged to the bracket assembly 12; The lower plate body 11 and the upper plate body 21 are symmetrically provided with a set of slide rail grooves 3 on opposite sides; the waterproof cloth 4 is symmetrically provided with joints 41 at the top and bottom, and the ends of the joints 41 can be placed in the slide rail grooves 3, and a zipper 42 is also provided in the middle of the waterproof cloth 4; The bracket assembly 12 includes a bracket 121 hinged to the inside of the lower plate body 11, the bracket 121 is elastically supported by an elastic rod 122, one end of the elastic rod 122 is elastically connected to an elastic block 123 located inside the bracket 121, and the end of the bracket 121 away from the elastic block 123 is hinged to a connecting piece 124, and the end of the elastic rod 122 close to the connecting piece 124 is in initial state. The lower plate body 11 is also provided with a card slot 125 that can be matched with one end of the elastic block 123. A shift block 1221 is also provided in the middle of the elastic rod 122, and both sides of the shift block 1221 extend to the outside of the bracket 121; The bracket assembly 23 includes a bracket 231 hinged to the interior of the upper plate body 21. The bracket 231 elastically supports a second elastic rod 232. One end of the second elastic rod 232 abuts against the connecting member 124 in the initial state. The upper plate body 21 is also provided with a bayonet 233 that can be engaged with the other end of the second elastic rod 232. When the bracket 121, the connecting piece 124 and the bracket 231 are in a vertical state, the elastic rod 122 can move upward through the connecting piece 124 due to its own elastic force and push the elastic rod 2 232 upward; The cross section of one end of the elastic rod 122 close to the connecting piece 124 is conical and can be engaged with the end of the elastic rod 232 .

[0017] By adopting the above scheme, the operator lifts the upper plate body 21 upward to drive the bracket 231 to move, and the bracket 231 also drives the connecting piece 124 and the bracket 1 121 to rotate. When the three are in a vertical state and in a straight line, the elastic rod 1 122 moves upward under the action of its own elastic force, and its top end passes through the middle of the connecting piece 124 and enters the bracket 231 to push the elastic rod 232 upward and snap into the snap-in 233. The elastic rod 122 also drives the elastic block 123 upward and snaps one end of the elastic block 123 into the snap-in slot 125, thereby respectively keeping the bracket 231 and the bracket 1 121 in a vertical state, and then the operator snaps the joint 41 on the waterproof cloth 4 into the slide rail groove 3 on the upper plate body 21 and the lower plate body 11 respectively, and then the operator uses the magnet 13 and the magnet assembly 22 to absorb and install the entire warehouse body on the housing of the electrical equipment, thereby quickly completing the construction of the closed warehouse body; It is worth noting that, through the design of the shifting block 1221, it is convenient for the operator to move downward to disengage from the second bracket 231, thereby facilitating the resetting of the device.

[0018] like Figure 1 , Figure 3 , Figure 6 , Figure 7 and Fig.10 As shown, the ventilation pipe 14 is also fixedly connected with a secondary pipe 141; the sealing assembly 5 includes a reel 51 elastically connected to the upper plate body 21, a strip airbag 52 is wound on the shaft portion of the reel 51, the free end of the strip airbag 52 passes through the upper plate body 21 and is fixedly connected to the lower plate body 11, and the top of the secondary pipe 141 is connected with the free end of the strip airbag 52 through the lower plate body 11; the projection of the extended line direction of the slide rail groove 3 overlaps with the strip airbag 52; By adopting the above scheme, the strip airbag 52 is released by moving upward through the upper plate body 21. When the waterproof cloth 4 is installed on the upper plate body 21 and the lower plate body 11, the side edge of the waterproof cloth 4 will be close to the part of the strip airbag 52 located between the upper plate body 21 and the lower plate body 11. Then the operator connects the fan with filter to the end of the ventilation pipe 14 located outside the lower plate body 11. At this time, the gas will be blown to the bottom of the warehouse through the outlet of the ventilation pipe 14. At the same time, the gas will also pass through the strip airbag 52 and expand the strip airbag 52, thereby making the strip airbag 52 fit more closely with the electrical equipment and the side edges of the waterproof cloth 4, thereby increasing the sealing inside the dustproof warehouse.

[0019] like Figure 1 , Figure 3 , Figure 6 , Figure 7 and Fig.10 As shown, a through hole 521 is provided at one end of the strip-shaped airbag 52 away from the lower plate body 11; a second ventilation pipe 211 is also provided inside the upper plate body 21, and a second exhaust pipe 212 is symmetrically provided on the upper plate body 21. The outlet of the second ventilation pipe 211 is connected to the outside through the upper plate body 21 and the second exhaust pipe 212, and one end of the second ventilation pipe 211 is connected to the strip-shaped airbag 52 through the cavity of the upper plate body 21. The upper plate body 21 is U-shaped as a whole and is provided with a plurality of outlets facing the interior of the upper plate body 21. With the above solution, when the gas is blown toward the bottom of the warehouse through the outlet of the ventilation pipe 14, the gas will also be blown toward the top of the warehouse through the auxiliary pipe 141, the strip air bag 52, the through hole 521 and the ventilation pipe 211, thereby realizing the dust removal operation for the operator inside the warehouse; It is worth noting that the blown gas will be discharged to the outside through the exhaust pipe 212 and the exhaust pipe 115.

[0020] like Figure 2 , Figure 3 , Figure 6 and Figure 8 As shown, the magnet assembly 22 includes a second ventilation pipe 211 elastically connected to the interior of the upper plate body 21. The second ventilation pipe 211 is located inside the upper plate body 21 in the initial state. The interior of the upper plate body 21 is also movably connected with support plates 223 located on both sides of the second ventilation pipe 211. The support plates 223 are provided with inclined grooves 224 and vertical grooves 225. The two ends of the second ventilation pipe 211 are also fixedly connected with convex shafts 222 that can slide in the inclined grooves 224. The upper plate body 21 is also fixed with a convex shaft 213 which can slide in the vertical groove 225 and has a diameter smaller than the width of the vertical groove 225; the waterproof cloth 4 can be folded and placed between the lower plate body 11 and the upper plate body 21; By adopting the above scheme, when the magnet assembly 22 approaches the casing of the electrical equipment, the spring combination magnet 221 will move toward the casing of the electrical equipment and be adsorbed thereon. The movement of the spring combination magnet 221 will also drive the support plate 223 to move in the inclined groove 224. At this time, the support plate 223 will move vertically downward under the limitation of the convex shaft 213, thereby increasing the contact area between the upper plate body 21 and the electrical equipment, so as to ensure that the upper plate body 21 can be more stably adsorbed on the casing of the electrical equipment.

[0021] The working principle and use process of the present invention: When the upper plate body 21 is lifted and the bracket 231 is moved, the bracket 231 will also drive the connecting piece 124 and the bracket 1 121 to rotate. When the three are in a vertical state and in a straight line, the elastic rod 122 moves upward under the action of its own elastic force, and its top end passes through the middle of the connecting piece 124 and enters the bracket 231 to push the elastic rod 232 upward and snap into the snap-in slot 233. At the same time, the elastic rod 122 will also drive the elastic block 123 upward and snap one end of the elastic block 123 into the snap-in slot 125, thereby keeping the bracket 2 231 and the bracket 1 121 in a vertical state respectively. Then, the operator snaps the joint 41 on the waterproof cloth 4 into the slide rail groove 3 on the upper plate body 21 and the lower plate body 11 respectively. Then, the operator adsorbs and installs the entire warehouse body on the housing of the electrical equipment through the magnet 13 and the magnet assembly 22, thereby completing the construction of the closed warehouse body. When the upper plate body 21 moves upward, the strip airbag 52 will also be released. When the waterproof cloth 4 is installed on the upper plate body 21 and the lower plate body 11, the side edge of the waterproof cloth 4 will be close to the strip airbag 52 located between the upper plate body 21 and the lower plate body 11. Then the operator connects the fan with filter to the end of the ventilation pipe 14 located outside the lower plate body 11. At this time, the gas will be blown to the bottom of the warehouse through the outlet of the ventilation pipe 14. At the same time, the gas will be blown to the top of the warehouse through the auxiliary pipeline 141, the strip airbag 52, the through hole 521 and the ventilation pipe 211, so as to realize the dust removal operation for the operator inside the warehouse; When the gas passes through the strip-shaped airbag 52, the strip-shaped airbag 52 will expand as a whole, thereby making the strip-shaped airbag 52 fit more closely with the side edges of the electrical equipment and the waterproof cloth 4, thereby increasing the sealing performance inside the dustproof bin; When the magnet assembly 22 approaches the casing of the electrical equipment, the spring combination magnet 221 will move toward the casing of the electrical equipment and be adsorbed thereon. The movement of the spring combination magnet 221 will also drive the support plate 223 to move in the inclined groove 224. At this time, the support plate 223 will move vertically downward under the limitation of the convex shaft 213, thereby increasing the contact area between the upper plate body 21 and the electrical equipment, so as to ensure that the upper plate body 21 can be more stably adsorbed on the casing of the electrical equipment.

[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0023] 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. A portable dustproof bin for opening and repairing electrical equipment, comprising a lower plate structure (1) and an upper plate structure (2) arranged above the lower plate structure, characterized in that: Also includes: A waterproof cloth (4) is used to be installed between the lower plate structure (1) and the upper plate structure (2); A sealing assembly (5) symmetrically arranged on the upper plate structure (2) and used to increase the sealing performance of the edge of the waterproof cloth (4); The lower plate structure (1) comprises a lower plate body (11) and a bracket assembly (12) symmetrically and staggeredly hinged inside the lower plate body (11); one side of the lower plate body (11) is symmetrically and fixedly connected with a magnet (13); a ventilation pipe (14) is also fixedly connected inside the lower plate body (11); one end of the ventilation pipe (14) extends to the outside of the lower plate body (11); the part of the ventilation pipe (14) located inside the lower plate body (11) is U-shaped and is provided with a plurality of outlets facing the inside of the lower plate body (11); an exhaust pipe (15) is also symmetrically opened inside the lower plate body (11); the ventilation pipe (14) is connected to the outside through the lower plate body (11) and the exhaust pipe (15); The upper plate structure (2) comprises an upper plate body (21) mounted above the lower plate body (11); a magnet assembly (22) located above the first magnet (13) is symmetrically arranged on one side of the upper plate body (21); a bracket assembly (23) located above the first bracket assembly (12) is also symmetrically and staggeredly hingedly connected to the magnet assembly (22); the other end of the bracket assembly (23) is hingedly connected to the first bracket assembly (12); The lower plate body (11) and the upper plate body (21) are symmetrically provided with a set of slide rail grooves (3) on opposite sides thereof; The waterproof cloth (4) is symmetrically provided with joints (41) at the top and bottom, and the ends of the joints (41) can be placed in the slide rail groove (3). A zipper (42) is also provided in the middle of the waterproof cloth (4).

2. The portable dustproof bin for opening and repairing electrical equipment according to claim 1 is characterized by: The bracket assembly 1 (12) comprises a bracket 1 (121) hingedly connected to the interior of the lower plate body (11); the bracket 1 (121) is elastically supported by an elastic rod 1 (122); one end of the elastic rod 1 (122) is elastically connected to an elastic block (123) located inside the bracket 1 (121); one end of the bracket 1 (121) away from the elastic block (123) is hingedly connected to a connecting piece (124); one end of the elastic rod 1 (122) close to the connecting piece (124) is in initial state in contact with the inner wall of the connecting piece (124); and a slot (125) capable of cooperating and engaging with one end of the elastic block (123) is also provided inside the lower plate body (11); A shift block (1221) is also provided in the middle of the elastic rod one (122), and two sides of the shift block (1221) extend to the outside of the bracket one (121).

3. The portable dustproof bin for opening and repairing electrical equipment according to claim 2 is characterized in that: The second bracket assembly (23) comprises a second bracket (231) hingedly connected to the interior of the upper plate body (21); a second elastic rod (232) is elastically supported inside the second bracket (231); one end of the second elastic rod (232) is in contact with the connecting piece (124) in an initial state; and a bayonet (233) capable of cooperating and engaging with the other end of the second elastic rod (232) is also provided on the upper plate body (21); When the bracket one (121), the connecting piece (124) and the bracket two (231) are in a vertical state, the elastic rod one (122) can move upward through the connecting piece (124) due to its own elastic force and push the elastic rod two (232) upward.

4. The portable dustproof bin for opening and repairing electrical equipment according to claim 3 is characterized by: The cross section of one end of the elastic rod 1 (122) close to the connecting piece (124) is conical and can be engaged with the end of the elastic rod 2 (232).

5. The portable dustproof bin for opening and repairing electrical equipment according to claim 4 is characterized in that: The ventilation pipe 1 (14) is also fixedly connected to a secondary pipe (141); The sealing assembly (5) comprises a reel (51) elastically connected to the upper plate body (21), a strip-shaped airbag (52) being wound on the shaft portion of the reel (51), a free end of the strip-shaped airbag (52) passing through the upper plate body (21) and fixedly connected to the lower plate body (11), and a top end of the secondary pipe (141) being connected to the free end of the strip-shaped airbag (52) through the lower plate body (11); The projection of the extended line of the slide rail groove (3) overlaps with the strip-shaped airbag (52).

6. The portable dustproof bin for opening and repairing electrical equipment according to claim 5 is characterized by: A through hole (521) is formed at one end of the strip-shaped air bag (52) away from the lower plate body (11); A second ventilation pipe (211) is also provided inside the upper plate body (21), and a second exhaust pipe (212) is also symmetrically provided on the upper plate body (21). The outlet of the second ventilation pipe (211) is connected to the outside through the upper plate body (21) and the second exhaust pipe (212), and one end of the second ventilation pipe (211) is connected to the strip air bag (52) through the cavity of the upper plate body (21). The upper plate body (21) is generally U-shaped and is provided with a plurality of outlets facing the interior of the upper plate body (21).

7. The portable dustproof bin for opening and repairing electrical equipment according to claim 6 is characterized by: The magnet assembly (22) comprises a second ventilation pipe (211) elastically connected to the interior of the upper plate body (21); the second ventilation pipe (211) is located inside the upper plate body (21) in an initial state; the interior of the upper plate body (21) is also movably connected to support plates (223) located on both sides of the second ventilation pipe (211); the support plates (223) are provided with an inclined groove (224) and a vertical groove (225); and two ends of the second ventilation pipe (211) are also fixedly connected to a second convex shaft (222) that can slide in the inclined groove (224); The upper plate body (21) is also fixedly connected with a convex shaft (213) which can slide in the vertical groove (225) and has a diameter smaller than the width of the vertical groove (225).

8. The portable dustproof bin for opening and repairing electrical equipment according to claim 7 is characterized in that: The waterproof cloth (4) can be folded and placed between the lower plate body (11) and the upper plate body (21).

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