CN211720093U - Cubical switchboard pressure release protective structure - Google Patents
Cubical switchboard pressure release protective structure Download PDFInfo
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- CN211720093U CN211720093U CN202020561366.7U CN202020561366U CN211720093U CN 211720093 U CN211720093 U CN 211720093U CN 202020561366 U CN202020561366 U CN 202020561366U CN 211720093 U CN211720093 U CN 211720093U
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Abstract
The utility model discloses a cubical switchboard pressure release protective structure, concretely relates to cubical switchboard field, including the cubical switchboard, the centre at cubical switchboard top is provided with the bearing sleeve, the bottom of bearing sleeve inner chamber is provided with the sealing ring, the middle part of bearing sleeve inner chamber is provided with the shrouding, the spliced pole has been seted up to the left and right sides symmetry at shrouding top, the guide way has been seted up to the left and right sides symmetry at two spliced pole tops, the spout has been seted up to the middle part symmetry of guide way left and right sides inner wall, the top symmetry of two spliced poles is provided with spacing dish, the top of bearing sleeve inner chamber is provided with the bracing piece, the left and right sides symmetry fixedly connected with support column of bracing piece bottom, the centre symmetry. The utility model discloses when cubical switchboard inside has high-pressure draught, atmospheric pressure promotes the shrouding and rises, and shrouding and sealing ring separation, high-pressure draught are flowed by the gap between shrouding and the bearing sleeve wall body, realize the pressure release.
Description
Technical Field
The utility model relates to a cubical switchboard technical field, more specifically say, the utility model relates to a cubical switchboard pressure release protective structure.
Background
In the operation process of a switch cabinet, under the conditions of insulation aging, human misoperation, design defects of the switch cabinet and the like, a short-circuit fault can occur in a primary loop, a short-circuit current of tens of thousands of amperes is generated, the short-circuit current can instantly generate high-temperature and high-pressure gas, and the switch cabinet can be cracked if fault airflow cannot be effectively released in a short time due to the fact that a cabinet body is narrow, so that the adjacent switch cabinet and workers are seriously damaged, and a major safety accident is caused. Therefore, the switch cabinet is provided with pressure relief measures during design, for example, a bolt fixing cover plate with set strength is arranged at the top of the switch cabinet, which is commonly adopted in the prior art, so that the bolt fails during pressure relief, and the cover plate is opened to realize pressure relief. However, when the switch cabinet is in operation, a large amount of heat can be generated by internal current, especially when the bus current of the switch cabinet exceeds 3150A or when a transformer is installed, ventilation and heat dissipation need to be considered by arranging a heat dissipation structure, the heat dissipation structure in the prior art usually has louver heat dissipation openings on the front door and the rear door of the switch cabinet, and heat dissipation is realized by airflow flow, in order to ensure the heat dissipation effect, the heat dissipation openings are arranged on the side and directly communicated with the internal space of the cabinet body, so when the switch cabinet is depressurized, high-temperature and high-pressure airflow can be sprayed out from the heat dissipation openings of the front door and the rear door, personal safety and adjacent equipment can be easily injured, and potential safety hazards are formed.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a cubical switchboard pressure release protective structure, when cubical switchboard inside has high-pressure draught, atmospheric pressure promotes the shrouding and rises, and shrouding and sealing ring separation, high-pressure draught are flowed by the gap between shrouding and the bearing sleeve wall body, realize the pressure release to solve the problem of proposing in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a pressure relief protection structure of a switch cabinet comprises the switch cabinet, wherein a bearing sleeve is arranged in the center of the top of the switch cabinet, a sealing ring is arranged at the bottom of an inner cavity of the bearing sleeve, a sealing plate is arranged in the middle of the inner cavity of the bearing sleeve, connecting columns are symmetrically arranged on the left side and the right side of the top of the sealing plate, guide grooves are symmetrically arranged on the left side and the right side of the top of the two connecting columns, sliding grooves are symmetrically arranged in the middle of inner walls on the left side and the right side of the guide grooves, limiting discs are symmetrically arranged on the top of the two connecting columns, supporting columns are symmetrically and fixedly connected on the left side and the right side of the bottom of each supporting column, antifriction rings are symmetrically arranged in the center of the bottoms of the two supporting columns, guide rods are symmetrically and fixedly connected on the left side and the right, the top of the left side and the right side of the sealing plate is symmetrically provided with three air holes communicated with the top and the bottom of the sealing plate.
In a preferred embodiment, one end of the bottom of the bearing sleeve penetrates through the outer wall of the top of the switch cabinet and extends into the switch cabinet, the bearing sleeve is tightly attached and fixedly connected with the wall body of the switch cabinet, and the inner cavity of the bearing sleeve is communicated with the outside from the center of the top and the bottom of the bearing sleeve.
In a preferred embodiment, the front surface, the back surface and the left and right sides of the sealing ring are attached to and fixedly connected with the inner wall of the bearing sleeve, the inner cavity of the sealing ring is communicated with the outside from the center of the top and the bottom of the sealing ring, the outer side of the bottom of the sealing plate is attached to the outer wall of the top of the sealing ring, and gaps are reserved between the front surface, the back surface and the left and right sides of the sealing plate and the inner wall of the bearing sleeve.
In a preferred embodiment, the left end and the right end of the supporting rod are respectively fixedly connected to the inner walls of the tops of the left side and the right side of the bearing sleeve, one end of the top of each of the two wear-reducing rings respectively penetrates through the outer walls of the bottoms of the two supporting columns and extends into the supporting columns, the wear-reducing rings are closely attached to and fixedly connected with the wall bodies of the supporting columns, the compression spring sleeves are arranged outside the two guide rods, and one end of the top of the compression spring is fixedly mounted on the inner walls of the tops of the supporting columns.
In a preferred embodiment, one end of each of the two top portions of the connecting column is fixedly connected to the outer wall of the middle of the bottom of each of the two limiting discs, one end of each of the two top portions of the connecting column penetrates through the two wear-reducing rings and extends to the bottom of the inner cavity of each of the supporting columns, the connecting column is tightly attached to the wall body of each of the wear-reducing rings, and the front surface, the back surface, the left side and the right side of each of the limiting discs are attached to the inner wall.
In a preferred embodiment, one end of the bottom of the compression spring is fixedly mounted on the outer wall of the top of the limiting disc, one end of the bottom of each of the four guide rods respectively penetrates through the two limiting discs and extends into the four guide grooves, a gap is reserved between each guide rod and the wall body of each limiting disc, each guide rod is tightly attached to the wall body of each guide groove, the eight balls and the eight slide grooves are correspondingly arranged, one end, far away from each guide rod, of each ball extends into the corresponding slide groove and fits with the inner wall of the corresponding slide groove, and the center of each ball is arranged inside the wall body of each guide rod.
In a preferred embodiment, the inner cavity of the air vent is inclined by thirty degrees from the top to the bottom, and a dust screen is fixedly installed in the inner cavity of the air vent.
The utility model discloses a technological effect and advantage:
1. when high-pressure air flow is arranged in the switch cabinet, the air pressure pushes the sealing plate to rise, the sealing plate is separated from the sealing ring, the high-pressure air flow flows out from a gap between the sealing plate and the wall body of the bearing sleeve to realize pressure relief, the connecting column enters the inside of the supporting column when the sealing plate rises, friction when the connecting column enters and exits the supporting column is reduced through the arranged antifriction ring, meanwhile, the guide is provided for the movement of the connecting column, the sealing plate is prevented from inclining by air pressure, the guide is further provided for the movement of the connecting column through the movement of the arranged limiting disc in the supporting column and the movement of the guide rod in the guide groove, through the matching work of the arranged sliding groove and the balls, the guide rod is provided with moving guide, the friction of the guide rod in the moving process in the guide groove is reduced, the sealing plate is conveniently intercepted through the arranged support rod, the sealing plate is prevented from being pushed away from the bearing sleeve by air pressure and matched with the resetting of the compression spring, and support is provided for the continuous work of the sealing plate;
2. through the bleeder vent that sets up, the heat that produces the inside during operation of cubical switchboard at the top of cubical switchboard dissipates, avoids high temperature high pressure gas to spout and injures personal safety and neighbouring equipment.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a cross-sectional view of the bearing sleeve of the present invention.
FIG. 3 is an enlarged view of the point A in FIG. 2 according to the present invention;
fig. 4 is an enlarged view of the point B in fig. 2 according to the present invention.
The reference signs are: 1 switch cabinet, 2 bearing sleeves, 3 sealing rings, 4 sealing plates, 5 connecting columns, 6 guide grooves, 7 sliding grooves, 8 limiting discs, 9 supporting rods, 10 supporting columns, 11 antifriction rings, 12 guide rods, 13 balls, 14 compression springs and 15 air holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The pressure relief protection structure of the switch cabinet shown in the attached figures 1-3 comprises a switch cabinet 1, wherein a bearing sleeve 2 is arranged in the center of the top of the switch cabinet 1, a sealing ring 3 is arranged at the bottom of the inner cavity of the bearing sleeve 2, a sealing plate 4 is arranged in the middle of the inner cavity of the bearing sleeve 2, connecting posts 5 are symmetrically arranged on the left side and the right side of the top of the sealing plate 4, guide grooves 6 are symmetrically arranged on the left side and the right side of the top of each connecting post 5, sliding grooves 7 are symmetrically arranged in the middle of the inner walls on the left side and the right side of each guide groove 6, limiting discs 8 are symmetrically arranged on the top of each connecting post 5, a support rod 9 is arranged on the top of the inner cavity of the bearing sleeve 2, support columns 10 are symmetrically and fixedly connected on the left side and the right side of the bottom of each support rod 9, the compression spring 14 is arranged in the middle of the inner cavity of the support column 10.
One end of the bottom of the bearing sleeve 2 penetrates through the outer wall of the top of the switch cabinet 1 and extends into the switch cabinet 1, the bearing sleeve 2 is tightly attached and fixedly connected with the wall body of the switch cabinet 1, the inner cavity of the bearing sleeve 2 is communicated with the outside through the centers of the top and the bottom of the bearing sleeve, the front surface, the back surface and the left side and the right side of the sealing ring 3 are attached to the inner wall of the bearing sleeve 2 and fixedly connected with the inner wall of the bearing sleeve 2, the inner cavity of the sealing ring 3 is communicated with the outside through the centers of the top and the bottom of the sealing ring 3, the outer side of the bottom of the sealing plate 4 is attached to the outer wall of the top of the sealing ring 3, gaps are reserved between the front surface, the back surface, the left side and the right side of the sealing plate 4 and the inner wall of the bearing sleeve 2, the left end and the right end of the top of the, the antifriction ring 11 is closely attached to and fixedly connected with the wall body of the support column 10, the compression springs 14 are sleeved outside the two guide rods 12, and one ends of the tops of the compression springs 14 are fixedly mounted on the inner wall of the top of the support column 10.
One end of the top of each connecting column 5 is fixedly connected to the outer wall in the middle of the bottoms of the two limiting discs 8 respectively, one end of the top of each connecting column 5 penetrates through the two antifriction rings 11 respectively and extends to the bottom of the inner cavity of the support column 10, the connecting columns 5 are tightly attached to the wall body of the antifriction rings 11, the front surfaces of the limiting discs 8, the back and the inner wall of left and right sides laminating support column 10, the one end fixed mounting of compression spring 14 bottom is on the outer wall at spacing dish 8 top, the one end of four guide arms 12 bottoms runs through two spacing dishes 8 respectively and extends to the inside of four guide ways 6, leave the gap between the wall body of guide arm 12 and spacing dish 8, guide arm 12 closely laminates with the wall body of guide way 6, eight balls 13 correspond the setting with eight spout 7, ball 13 keeps away from the one end of guide arm 12 and extends to the inside that corresponds spout 7 and agree with the inner wall of spout 7, ball 13's centre of sphere sets up the inside at guide arm 12 wall body.
The implementation mode is specifically as follows: when high-pressure air flow is arranged in the switch cabinet 1, the air pressure pushes the sealing plate 4 to rise, the sealing plate 4 is separated from the sealing ring 3, the high-pressure air flow flows out from a gap between the sealing plate 4 and the wall body of the bearing sleeve 2, pressure relief is realized, the connecting column 5 enters the inside of the supporting column 10 when the sealing plate 4 rises, friction when the connecting column 5 enters and exits the supporting column 10 is reduced through the arranged antifriction ring 11, meanwhile, guidance is provided for the movement of the connecting column 5, the sealing plate 4 is prevented from being jacked to incline by the air pressure, the guide rod 12 moves in the guiding groove 6 through the movement of the arranged limiting disc 8 in the supporting column 10, guidance is further provided for the movement of the connecting column 5, through the matched work of the arranged sliding groove 7 and the rolling balls 13, the friction when the guide rod 12 moves in the guiding groove 6 is reduced while providing movement guidance for the guide rod, the closing plate 4 is prevented from being pushed away from the bearing sleeve 2 by air pressure and matched with the resetting of the compression spring 14, and support is provided for the continuous work of the closing plate 4.
The switch cabinet pressure relief protection structure shown in the attached figure 4 further comprises air holes 15, the tops of the left side and the right side of the sealing plate 4 are symmetrically provided with three air holes 15 communicated with the top and the bottom of the sealing plate, the inner cavity of each air hole 15 is inclined to the bottom of the sealing plate by thirty degrees from the top, and a dust screen is fixedly mounted in the inner cavity of each air hole 15.
The implementation mode is specifically as follows: through the bleeder vent 15 that sets up, the heat that produces the inside during operation of cubical switchboard 1 at the top of cubical switchboard 1 dissipates, avoids high temperature high pressure gas to spout and injures personal safety and adjacent equipment.
The utility model discloses the theory of operation:
referring to the attached drawings 1-3 of the specification, when high-pressure air flow exists in the switch cabinet 1, air pressure pushes the sealing plate 4 to ascend, the sealing plate 4 is separated from the sealing ring 3, the high-pressure air flow flows out from a gap between the sealing plate 4 and the wall body of the bearing sleeve 2 to realize pressure relief, the connecting post 5 enters the inside of the supporting post 10 when the sealing plate 4 ascends, friction when the connecting post 5 enters and exits the supporting post 10 is reduced through the arranged antifriction ring 11, meanwhile, guidance is provided for movement of the connecting post 5, the sealing plate 4 is prevented from being inclined by the air pressure, the guide rod 12 moves in the guiding slot 6 through movement of the arranged limiting disc 8 and movement of the guide rod 12, further, guidance is provided for movement of the connecting post 5, through matching work of the arranged sliding groove 7 and the arranged ball 13, the guide rod 12 is provided with movement guidance, friction when the guide rod 12 moves in the guiding, the sealing plate 4 is conveniently intercepted, the sealing plate 4 is prevented from being jacked away from the bearing sleeve 2 by air pressure and matched with the resetting of the compression spring 14, and support is provided for the continuous work of the sealing plate 4;
referring to the attached figure 4 of the specification, through the arranged air holes 15, heat generated when the inside of the switch cabinet 1 works is dissipated at the top of the switch cabinet 1, and the high-temperature and high-pressure air is prevented from being sprayed to hurt personal safety and adjacent equipment.
And finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a cubical switchboard pressure release protective structure, includes cubical switchboard (1), its characterized in that: the center of the top of the switch cabinet (1) is provided with a bearing sleeve (2), the bottom of an inner cavity of the bearing sleeve (2) is provided with a sealing ring (3), the middle of the inner cavity of the bearing sleeve (2) is provided with a sealing plate (4), the left side and the right side of the top of the sealing plate (4) are symmetrically provided with connecting columns (5), the left side and the right side of the top of the two connecting columns (5) are symmetrically provided with guide grooves (6), the middle of the inner wall of the left side and the right side of each guide groove (6) is symmetrically provided with a sliding groove (7), the top of the two connecting columns (5) is symmetrically provided with a limiting disc (8), the top of the inner cavity of the bearing sleeve (2) is provided with a supporting rod (9), the left side and the right side of the bottom of the supporting rod (9) are symmetrically and fixedly connected with supporting columns (10), the center of, the bottoms of the left side and the right side of the guide rod (12) are symmetrically and rotatably connected with balls (13), and the middle part of the inner cavity of the support column (10) is provided with a compression spring (14);
the top of the left side and the right side of the sealing plate (4) is symmetrically provided with three air holes (15) which are communicated with the top and the bottom of the sealing plate.
2. The switch cabinet pressure relief protection structure according to claim 1, characterized in that: one end of the bottom of the bearing sleeve (2) penetrates through the outer wall of the top of the switch cabinet (1) and extends into the switch cabinet (1), the bearing sleeve (2) is tightly attached to and fixedly connected with the wall body of the switch cabinet (1), and the inner cavity of the bearing sleeve (2) is communicated with the outside through the centers of the top and the bottom of the bearing sleeve.
3. The switch cabinet pressure relief protection structure according to claim 1, characterized in that: the inner wall of the bearing sleeve (2) is attached to the front face, the back face and the left side and the right side of the sealing ring (3) and is fixedly connected with the inner wall of the bearing sleeve (2), the inner cavity of the sealing ring (3) is communicated with the outside by the top and the middle of the bottom of the inner cavity, the outer wall of the top of the sealing ring (3) is attached to the outer side of the bottom of the sealing plate (4), and gaps are reserved between the front face, the back face, the left side and the right side of the sealing plate (4) and the inner wall of the bearing.
4. The switch cabinet pressure relief protection structure according to claim 1, characterized in that: both ends difference fixed connection is on the inner wall at bearing sleeve (2) left and right sides top about bracing piece (9), two the one end at antifriction ring (11) top runs through the outer wall of two support column (10) bottoms respectively and extends to the inside of support column (10), and antifriction ring (11) and the wall body of support column (10) are close-fitting and fixed connection, compression spring (14) cover is established in the outside of two guide arms (12), and the one end fixed mounting at compression spring (14) top is on the inner wall at support column (10) top.
5. The switch cabinet pressure relief protection structure according to claim 4, characterized in that: two the one end at spliced pole (5) top is fixed connection respectively on two spacing dish (8) bottom centre outer walls, and the one end at two spliced pole (5) tops runs through two antifriction rings (11) respectively and extends to the bottom of support column (10) inner chamber, and spliced pole (5) closely laminates with the wall body of antifriction ring (11), the front of spacing dish (8), the back and the inner wall of left and right sides laminating support column (10).
6. The switch cabinet pressure relief protection structure according to claim 5, characterized in that: one end fixed mounting of compression spring (14) bottom is on the outer wall at spacing dish (8) top, four the one end of guide arm (12) bottom runs through two spacing dishes (8) respectively and extends to the inside of four guide ways (6), leaves the gap between the wall body of guide arm (12) and spacing dish (8), and guide arm (12) closely laminates with the wall body of guide way (6), and eight ball (13) correspond the setting with eight spout (7), and the one end that guide arm (12) were kept away from in ball (13) extends to the inside that corresponds spout (7) and agrees with the inner wall of spout (7), and the centre of sphere setting of ball (13) is in the inside of guide arm (12) wall body.
7. The switch cabinet pressure relief protection structure according to claim 1, characterized in that: the inner cavity of the air hole (15) is inclined at thirty degrees from the top to the bottom, and a dust screen is fixedly arranged in the inner cavity of the air hole (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020561366.7U CN211720093U (en) | 2020-04-16 | 2020-04-16 | Cubical switchboard pressure release protective structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020561366.7U CN211720093U (en) | 2020-04-16 | 2020-04-16 | Cubical switchboard pressure release protective structure |
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| Publication Number | Publication Date |
|---|---|
| CN211720093U true CN211720093U (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020561366.7U Active CN211720093U (en) | 2020-04-16 | 2020-04-16 | Cubical switchboard pressure release protective structure |
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| CN (1) | CN211720093U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117239613A (en) * | 2023-08-23 | 2023-12-15 | 衡阳市官慕机电设备有限公司 | Arc extinction switch cabinet |
-
2020
- 2020-04-16 CN CN202020561366.7U patent/CN211720093U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117239613A (en) * | 2023-08-23 | 2023-12-15 | 衡阳市官慕机电设备有限公司 | Arc extinction switch cabinet |
| CN117239613B (en) * | 2023-08-23 | 2024-04-05 | 国网宁夏电力有限公司石嘴山供电公司 | Arc extinction switch cabinet |
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