CN115800066A - Explosion-proof pressure relief device ventilates for cubical switchboard - Google Patents

Explosion-proof pressure relief device ventilates for cubical switchboard Download PDF

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Publication number
CN115800066A
CN115800066A CN202211375534.3A CN202211375534A CN115800066A CN 115800066 A CN115800066 A CN 115800066A CN 202211375534 A CN202211375534 A CN 202211375534A CN 115800066 A CN115800066 A CN 115800066A
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CN
China
Prior art keywords
pressure relief
side pressure
plate
channel
switch cabinet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202211375534.3A
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Chinese (zh)
Inventor
齐波
王强
李磊
田文生
王正华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhengyang Power Supply Company State Grid Henan Electric Power Co
Original Assignee
Zhengyang Power Supply Company State Grid Henan Electric Power Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhengyang Power Supply Company State Grid Henan Electric Power Co filed Critical Zhengyang Power Supply Company State Grid Henan Electric Power Co
Priority to CN202211375534.3A priority Critical patent/CN115800066A/en
Publication of CN115800066A publication Critical patent/CN115800066A/en
Withdrawn legal-status Critical Current

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Abstract

The invention relates to a ventilation explosion-proof pressure relief device for a switch cabinet, which comprises a cabinet body, a main pressure relief mechanism, a first side pressure relief mechanism and a second side pressure relief mechanism, wherein the cabinet body comprises a circuit breaker chamber, a bus chamber, a cable chamber and an instrument chamber; a main pressure relief mechanism is arranged above the main pressure relief channel, and a second side pressure relief mechanism and a first side pressure relief mechanism are respectively arranged above the second side pressure relief channel and the first side pressure relief channel; the invention has the advantages of simple structure, good ventilation and pressure relief effect, timely pressure relief, safety and reliability.

Description

Explosion-proof pressure relief device ventilates for cubical switchboard
Technical Field
The invention belongs to the technical field of switch cabinet appliances, and particularly relates to a ventilation explosion-proof pressure relief device for a switch cabinet.
Background
The main function of the switch cabinet (switchgear) is to open, close, control and protect electric equipment in the process of power generation, power transmission, power distribution and electric energy conversion of an electric power system, components in the switch cabinet mainly comprise a breaker, an isolating switch, a load switch, an operating mechanism, a mutual inductor, various protection devices and the like, during the operation of the switch cabinet, a one-time loop short circuit fault is caused due to various reasons (such as short circuit, insulation aging, human misoperation and the like), high-temperature high-pressure gas is generated instantaneously under the short circuit current of Mo Anpei, if the high-temperature high-pressure gas cannot be effectively released in a very short time in a narrow cabinet body, the switch cabinet is burst and cracked, adjacent switch cabinets are damaged, and personal safety is possibly injured, the conventional measures fix a pressure release cover on the top of the switch cabinet through a nylon screw, when a fault occurs, the nylon screw is melted at a high temperature, the gas in the switch cabinet is discharged out of the switch cabinet through the ejection pressure release cover, but the pressure release cover and the electric components in the switch cabinet are easily broken under high-pressure, and the economic and the high-loss and the damage of the equipment are easily caused by accidents and the accidents are easily caused; therefore, it is very necessary to provide a ventilation explosion-proof pressure relief device for a switch cabinet, which has the advantages of simple structure, good ventilation and pressure relief effect, timely pressure relief, safety and reliability.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a safe and reliable ventilation and explosion-proof pressure relief device for a switch cabinet, which has a simple structure and good ventilation and pressure relief effects and can relieve pressure in time.
The purpose of the invention is realized as follows: a ventilation explosion-proof pressure relief device for a switch cabinet comprises a cabinet body, a main pressure relief mechanism, a first side pressure relief mechanism and a second side pressure relief mechanism, wherein the cabinet body comprises a circuit breaker chamber, a bus chamber, a cable chamber and an instrument chamber, a main pressure relief channel is arranged in the middle of the top of the cabinet body, a second side pressure relief channel and a first side pressure relief channel are respectively arranged on the left side and the right side of the main pressure relief channel, the main pressure relief channel is a shared pressure relief channel of the circuit breaker chamber and the bus chamber, the second side pressure relief channel is a pressure relief channel of the cable chamber, and the first side pressure relief channel is a pressure relief channel of the instrument chamber; the main pressure relief channel top be provided with main pressure relief mechanism, second side pressure relief channel and first side pressure relief channel top be provided with second side pressure relief mechanism and first side pressure relief mechanism respectively.
The main pressure relief mechanism comprises a bottom plate, a sliding frame is arranged above the bottom plate, a triangular oblique guide plate is arranged below the inner side of the sliding frame, a sliding seat is arranged behind the oblique guide plate, a rotating claw disc is arranged in front of the sliding seat, three blocking rod claws are evenly arranged on the outer side of the rotating claw disc, a first clamping head is arranged in front of the rotating claw disc, a main pressure relief plate is arranged in front of the first clamping head, and a plurality of main pressure relief holes are evenly formed in the inner portion of the main pressure relief plate.
The inner part of the bottom plate is provided with a transverse sliding groove, the bottom of the sliding frame is provided with a sliding plate which is in sliding connection with the transverse sliding groove, and the left side and the right side of the upper part of the sliding frame are both provided with baffles.
The slide be provided with the dwang at the back, dwang below left and right sides all be provided with spacing post, dwang a side end be provided with first spring beam, slide below be provided with the dead lever, the dead lever preceding be provided with the second spring beam, the second spring beam pass through spacing spring and be connected with first spring beam, the slide be provided with the vertical plate at the back.
The inner part of the longitudinal plate is provided with a longitudinal sliding groove, and a sliding block in sliding connection with the longitudinal sliding groove is arranged behind the sliding seat.
The transverse sliding groove and the longitudinal sliding groove are dovetail grooves.
The first side pressure release mechanism comprises a base plate, a sleeve seat is arranged above the right side of the base plate, a linkage wheel is arranged in front of the sleeve seat, a wheel shaft is arranged in the linkage wheel, a guide seat is arranged above the linkage wheel, and a limiting guide wheel is arranged in the guide seat.
The sleeve seat inside be provided with the axis of rotation, the axis of rotation preceding be provided with the second holding head, the second holding head preceding be provided with the side pressure release board, the side pressure release board inside evenly be provided with a plurality of side pressure release hole.
The sleeve seat top be provided with the limiting plate, the limiting plate pass through the support and the base plate connection of "L" shape structure, limiting plate left side be provided with the spacing groove, the outside corresponding spacing groove department of axis of rotation be provided with the gag lever post.
The first side pressure relief mechanism and the second side pressure relief mechanism are identical in structure, and the difference is that the length of a side pressure relief plate of the first side pressure relief mechanism is 2.6 times that of a side pressure relief plate of the second side pressure relief mechanism.
The invention has the beneficial effects that: the invention relates to a ventilation explosion-proof pressure relief device for a switch cabinet, which is characterized in that in use, in a normal state, a main pressure relief plate of a main pressure relief mechanism, side pressure relief plates of a first side pressure relief mechanism and a second side pressure relief mechanism are in a closed state, and a main pressure relief hole in the main pressure relief plate and side pressure relief holes in the side pressure relief plates can meet the normal ventilation and heat dissipation requirements in a cabinet body; when high-temperature and high-pressure gas is generated due to short circuit or other faults and the like in the cabinet body, the high-temperature and high-pressure gas can be respectively released from the top through the independent main pressure release channel, the first side pressure release channel and the second side pressure release channel, firstly, the high-temperature and high-pressure gas generated in the cabinet body can outwards jack up the main pressure release plate of the main pressure release mechanism, the side pressure release plates of the first side pressure release mechanism and the second side pressure release mechanism to carry out timely and rapid pressure release, so that sudden pressure increase is prevented, the personal safety is ensured, the accident potential is prevented from being further expanded, the damage to workers and equipment is avoided, and the safety is improved; the invention has the advantages of simple structure, good ventilation and pressure relief effect, timely pressure relief, safety and reliability.
Drawings
Fig. 1 is a front view of a ventilation explosion-proof pressure relief device for a switch cabinet.
Fig. 2 is a rear view of the ventilation explosion-proof pressure relief device for the switch cabinet.
Fig. 3 is a schematic structural diagram of a cabinet body of the ventilation explosion-proof pressure relief device for the switch cabinet.
Fig. 4 is a front view of a main pressure relief mechanism of the ventilation explosion-proof pressure relief device for the switch cabinet.
Fig. 5 is a rear view of the main pressure relief mechanism of the ventilation explosion-proof pressure relief device for the switch cabinet.
Fig. 6 is a side view of the main pressure relief mechanism of the ventilation explosion-proof pressure relief device for the switch cabinet.
Fig. 7 is a perspective view of a main pressure relief mechanism of the ventilation explosion-proof pressure relief device for the switch cabinet.
Fig. 8 is a front view of a first side pressure relief mechanism of the ventilation explosion-proof pressure relief device for the switch cabinet.
Fig. 9 is a rear view of a first side pressure relief mechanism of the ventilation explosion-proof pressure relief device for the switch cabinet.
Fig. 10 is a top view of a first side pressure relief mechanism of a ventilation explosion-proof pressure relief device for a switch cabinet of the invention.
Fig. 11 is a perspective view of a first side pressure relief mechanism of the ventilation explosion-proof pressure relief device for the switch cabinet.
In the figure: 1. the cabinet 11, a main pressure relief channel 12, a first side pressure relief channel 13, a second side pressure relief channel 2, a main pressure relief mechanism 21, a bottom plate 201, a lateral sliding groove 22, a sliding frame 221, a baffle 222, a sliding plate 23, an oblique guide plate 24, a sliding seat 241, a sliding block 25, a rotating claw disc 26, a baffle claw 27, a first clamping head 28, a main pressure relief plate 281, a main pressure relief hole 29, a longitudinal plate 291, a longitudinal sliding groove 210, a rotating rod 211, a first spring rod 212, a limiting column 213, a fixing rod 214, a second spring rod 215, a limiting spring 3, a first side pressure relief mechanism 31, a base plate 32, a sleeve seat 33, a linkage wheel 331, a wheel shaft 34, a guide seat 35, a limiting guide wheel 36, a limiting plate 361, a limiting groove 362, a bracket 37, a side pressure relief plate 371, a side pressure relief hole 38, a rotating shaft 381, a second clamping head 382, a limiting rod 4, a second side pressure relief mechanism a, a breaker chamber B, a bus chamber C, a cable chamber D, and an instrument chamber.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1-11, a ventilation explosion-proof pressure relief device for a switch cabinet comprises a cabinet body 1, a main pressure relief mechanism 2, a first side pressure relief mechanism 3 and a second side pressure relief mechanism 4, wherein the cabinet body 1 comprises a circuit breaker chamber a, a bus chamber B, a cable chamber C and an instrument chamber D, a main pressure relief channel 11 is arranged in the middle of the top of the cabinet body 1, a second side pressure relief channel 13 and a first side pressure relief channel 12 are respectively arranged on the left side and the right side of the main pressure relief channel 11, the main pressure relief channel 11 is a common pressure relief channel of the circuit breaker chamber a and the bus chamber B, the second side pressure relief channel 13 is a pressure relief channel of the cable chamber C, and the first side pressure relief channel 12 is a pressure relief channel of the instrument chamber D; main pressure relief channel 11 top be provided with main pressure relief mechanism 2, second side pressure relief channel 13 and first side pressure relief channel 12 top be provided with second side pressure relief mechanism 4 and first side pressure relief mechanism 3 respectively.
Main pressure release mechanism 2 include bottom plate 21, bottom plate 21 top be provided with sliding frame 22, sliding frame 22 inboard below be provided with triangle-shaped structure's slant baffle 23, slant baffle 23 be provided with slide 24 at the back, slide 24 preceding be provided with rotating claw dish 25, rotating claw dish 25 outside evenly be provided with three gear lever claw 26, rotating claw dish 25 preceding be provided with first holding head 27, first holding head 27 preceding be provided with main pressure release board 28, main pressure release board 28 inside evenly be provided with a plurality of main pressure release hole 281.
The inner part of the bottom plate 21 is provided with a transverse sliding chute 201, the bottom of the sliding frame 22 is provided with a sliding plate 222 which is in sliding connection with the transverse sliding chute 201, and the left side and the right side above the sliding frame 22 are both provided with baffles 221.
Slide 24 at the back be provided with dwang 210, dwang 210 below left and right sides all be provided with spacing post 212, dwang 210 a side end be provided with first spring beam 211, slide 24 below be provided with dead lever 213, dead lever 213 preceding be provided with second spring beam 214, second spring beam 214 be connected with first spring beam 211 through spacing spring 215, slide 24 at the back be provided with vertical plate 29.
A longitudinal sliding groove 291 is arranged in the longitudinal plate 29, and a sliding block 241 connected with the longitudinal sliding groove 291 in a sliding manner is arranged behind the sliding seat 24.
For better effect, the transverse sliding groove 201 and the longitudinal sliding groove 291 are dovetail grooves.
In this embodiment, the working principle of the main pressure relief mechanism is as follows: firstly, high-temperature high-pressure gas generated in the cabinet body can jack up a main pressure relief plate of a main pressure relief mechanism outwards, the main pressure relief plate can drive a sliding seat to slide in a longitudinal sliding groove of a longitudinal plate through a sliding block when moving upwards, when the sliding seat continues to move upwards, and a stop lever claw of a rotating claw disc touches a baffle, the rotating claw disc and the baffle on the rotating claw disc can rotate for 180 degrees, a larger gap is formed between the main pressure relief plate and the cabinet body, high-temperature high-pressure gas is discharged from the gap, timely, rapid and effective pressure relief is carried out, sudden pressure increase is prevented, personal safety is ensured, accident potential is prevented from being further expanded, damage to workers and equipment is avoided, and safety is improved; after the pressure relief is finished, the main pressure relief plate moves downwards to reset, so that excessive impurities such as water vapor and dust are prevented from entering the switch cabinet, the normal operation of the cabinet body is ensured, when the main pressure relief plate moves downwards, the catch lever claw of the rotating claw disc can touch the inclined guide plate, through the guiding action of the inclined guide plate, the sliding frame slides in the transverse sliding groove of the bottom plate through the sliding plate, the transverse displacement of the sliding frame is realized, when the main pressure relief plate moves upwards, the catch lever claw can touch the baffle plate to realize the turning, a larger gap is formed between the main pressure relief plate and the cabinet body, and the pressure relief is convenient; the effect of spacing spring: 1. the main pressure relief plate is pulled, limited and prevented from turning over in the moving process; 2. when the main pressure relief plate touches the baffle, the main pressure relief plate can quickly turn.
The invention relates to a ventilation explosion-proof pressure relief device for a switch cabinet, which is characterized in that in use, under a normal state, a main pressure relief plate 28 of a main pressure relief mechanism 2, side pressure relief plates 37 of a first side pressure relief mechanism 3 and a second side pressure relief mechanism 4 are in a closed state, and a main pressure relief hole 281 in the main pressure relief plate 28 and a side pressure relief hole 371 in the side pressure relief plate 37 can meet the normal ventilation and heat dissipation requirements inside a cabinet body 1; when high-temperature and high-pressure gas is generated due to short circuit or other faults and the like in the cabinet body 1, the high-temperature and high-pressure gas can be respectively released from the top through the independent main pressure release channel 11, the first side pressure release channel 12 and the second side pressure release channel 13, firstly, the high-temperature and high-pressure gas generated in the cabinet body 1 can outwards jack up the main pressure release plate 28 of the main pressure release mechanism 2, the side pressure release plates 37 of the first side pressure release mechanism 3 and the second side pressure release mechanism 4 to carry out timely and rapid pressure release, so that sudden pressure increase is prevented, personal safety is ensured, accident potential is prevented from being further expanded, damage to workers and equipment is avoided, and safety is improved; the invention has the advantages of simple structure, good ventilation and pressure relief effect, timely pressure relief, safety and reliability.
Example 2
As shown in fig. 1-11, a ventilation explosion-proof pressure relief device for a switch cabinet comprises a cabinet body 1, a main pressure relief mechanism 2, a first side pressure relief mechanism 3 and a second side pressure relief mechanism 4, wherein the cabinet body 1 comprises a circuit breaker chamber a, a bus chamber B, a cable chamber C and an instrument chamber D, a main pressure relief channel 11 is arranged in the middle of the top of the cabinet body 1, a second side pressure relief channel 13 and a first side pressure relief channel 12 are respectively arranged on the left side and the right side of the main pressure relief channel 11, the main pressure relief channel 11 is a common pressure relief channel of the circuit breaker chamber a and the bus chamber B, the second side pressure relief channel 13 is a pressure relief channel of the cable chamber C, and the first side pressure relief channel 12 is a pressure relief channel of the instrument chamber D; main pressure relief channel 11 top be provided with main pressure relief mechanism 2, second side pressure relief channel 13 and first side pressure relief channel 12 top be provided with second side pressure relief mechanism 4 and first side pressure relief mechanism 3 respectively.
The first side pressure relief mechanism 3 comprises a base plate 31, a sleeve seat 32 is arranged above the right side of the base plate 31, a linkage wheel 33 is arranged in front of the sleeve seat 32, a wheel shaft 331 is arranged inside the linkage wheel 33, a guide seat 34 is arranged above the linkage wheel 33, and a limiting guide wheel 35 is arranged inside the guide seat 34.
The inside axis of rotation 38 that is provided with of sleeve seat 32, axis of rotation 38 preceding be provided with second clamping head 381, second clamping head 381 preceding be provided with side pressure release board 37, side pressure release board 37 inside evenly be provided with a plurality of side pressure release hole 371.
A limiting plate 36 is arranged above the sleeve seat 32, the limiting plate 36 is connected with the base plate 31 through a support 362 of an L-shaped structure, a limiting groove 361 is arranged on the left side of the limiting plate 36, and a limiting rod 382 is arranged at the position, corresponding to the limiting groove 361, outside the rotating shaft 38.
For better effect, the first side pressure relief mechanism 3 and the second side pressure relief mechanism 4 have the same structure, except that the length of the side pressure relief plate 37 of the first side pressure relief mechanism 3 is 2.6 times that of the side pressure relief plate 37 of the second side pressure relief mechanism 4.
In this embodiment, the working principle of the first side pressure relief mechanism is as follows: firstly, high-temperature high-pressure gas generated in the cabinet body can jack up a side pressure release plate of a first side pressure release mechanism outwards, the side pressure release plate drives a rotating shaft to rotate through a first clamping head, the side pressure release plate is rotated to be vertical, the side pressure release plate is in an open state, a large gap is formed between the side pressure release plate and the cabinet body at the moment, the high-temperature high-pressure gas is discharged from the gap, and the high-temperature high-pressure gas is timely, quickly and effectively decompressed, so that sudden pressure increase is prevented, the personal safety is ensured, the accident potential is prevented from being further expanded, the damage to workers and equipment is avoided, and the safety is improved; the linkage wheel is driven to rotate in the rotating process of the rotating shaft, the linkage wheel drives the limiting guide wheel to rotate, the side pressure relief plate is prevented from rotating too fast, and in addition, a rotating rod outside the rotating shaft can enter a limiting groove in the rotating process of the rotating shaft, so that the limitation of the rotating range of the side pressure relief plate is realized; after the pressure relief is completed, the side pressure relief plate resets, so that impurities such as excessive water vapor and dust are prevented from entering the switch cabinet, and the normal operation of the cabinet body is ensured.
The invention relates to a ventilation explosion-proof pressure relief device for a switch cabinet, which is characterized in that in use, under a normal state, a main pressure relief plate 28 of a main pressure relief mechanism 2, side pressure relief plates 37 of a first side pressure relief mechanism 3 and a second side pressure relief mechanism 4 are in a closed state, and a main pressure relief hole 281 in the main pressure relief plate 28 and a side pressure relief hole 371 in the side pressure relief plate 37 can meet the normal ventilation and heat dissipation requirements inside a cabinet body 1; when high-temperature and high-pressure gas is generated due to short circuit or other faults in the cabinet body 1, the high-temperature and high-pressure gas can be respectively released from the top through the independent main pressure release channel 11, the first side pressure release channel 12 and the second side pressure release channel 13, firstly, the high-temperature and high-pressure gas generated in the cabinet body 1 can outwards jack up the main pressure release plate 28 of the main pressure release mechanism 2, the side pressure release plates 37 of the first side pressure release mechanism 3 and the second side pressure release mechanism 4 to carry out timely and rapid pressure release, so that sudden pressure increase is prevented, personal safety is ensured, accident potential is prevented from being further expanded, damage to workers and equipment is avoided, and safety is improved; the invention has the advantages of simple structure, good ventilation and pressure relief effect, timely pressure relief, safety and reliability.

Claims (10)

1. The utility model provides an explosion-proof pressure relief device of ventilation for cubical switchboard, it includes the cabinet body, main pressure relief mechanism, first side pressure relief mechanism and second side pressure relief mechanism, its characterized in that: the cabinet body comprises a circuit breaker chamber, a bus chamber, a cable chamber and an instrument chamber, a main pressure relief channel is arranged in the middle of the top of the cabinet body, a second side pressure relief channel and a first side pressure relief channel are respectively arranged on the left side and the right side of the main pressure relief channel, the main pressure relief channel is a shared pressure relief channel of the circuit breaker chamber and the bus chamber, the second side pressure relief channel is a pressure relief channel of the cable chamber, and the first side pressure relief channel is a pressure relief channel of the instrument chamber; the main pressure relief channel top be provided with main pressure relief mechanism, second side pressure relief channel and first side pressure relief channel top be provided with second side pressure relief mechanism and first side pressure relief mechanism respectively.
2. The ventilation explosion-proof pressure relief device for the switch cabinet as claimed in claim 1, wherein: the main pressure relief mechanism comprises a bottom plate, a sliding frame is arranged above the bottom plate, a triangular oblique guide plate is arranged below the inner side of the sliding frame, a sliding seat is arranged behind the oblique guide plate, a rotating claw disc is arranged in front of the sliding seat, three blocking rod claws are evenly arranged on the outer side of the rotating claw disc, a first clamping head is arranged in front of the rotating claw disc, a main pressure relief plate is arranged in front of the first clamping head, and a plurality of main pressure relief holes are evenly formed in the inner portion of the main pressure relief plate.
3. The ventilation explosion-proof pressure relief device for the switch cabinet as claimed in claim 2, wherein: the bottom plate inside be provided with horizontal spout, sliding frame bottom be provided with horizontal spout sliding connection's slide, sliding frame top left and right sides all be provided with the baffle.
4. A ventilating explosion-proof pressure relief device for a switch cabinet according to claim 3, wherein: the slide be provided with the dwang at the back, dwang below left and right sides all be provided with spacing post, dwang a side end be provided with first spring beam, slide below be provided with the dead lever, the dead lever preceding be provided with the second spring beam, the second spring beam pass through spacing spring and be connected with first spring beam, the slide be provided with the vertical plate at the back.
5. The ventilation explosion-proof pressure relief device for the switch cabinet as claimed in claim 4, wherein: the inner part of the longitudinal plate is provided with a longitudinal sliding groove, and a sliding block in sliding connection with the longitudinal sliding groove is arranged behind the sliding seat.
6. A ventilation explosion-proof pressure relief device for a switch cabinet as claimed in claim 3 or 5, wherein: the transverse sliding groove and the longitudinal sliding groove are dovetail grooves.
7. The ventilation explosion-proof pressure relief device for the switch cabinet as claimed in claim 1, wherein: the first side pressure release mechanism comprises a base plate, a sleeve seat is arranged above the right side of the base plate, a linkage wheel is arranged in front of the sleeve seat, a wheel shaft is arranged in the linkage wheel, a guide seat is arranged above the linkage wheel, and a limiting guide wheel is arranged in the guide seat.
8. The ventilation explosion-proof pressure relief device for the switch cabinet as claimed in claim 7, wherein: the sleeve seat inside be provided with the axis of rotation, the axis of rotation preceding be provided with the second holding head, the second holding head preceding be provided with the side pressure release board, the side pressure release board inside evenly be provided with a plurality of side pressure release hole.
9. The ventilation explosion-proof pressure relief device for the switch cabinet as claimed in claim 8, wherein: the sleeve seat top be provided with the limiting plate, the limiting plate pass through the support and the base plate connection of "L" shape structure, limiting plate left side be provided with the spacing groove, the outside corresponding spacing groove department of axis of rotation be provided with the gag lever post.
10. The ventilation explosion-proof pressure relief device for the switch cabinet as claimed in claim 7, wherein: the first side pressure relief mechanism and the second side pressure relief mechanism are identical in structure, and the difference is that the length of a side pressure relief plate of the first side pressure relief mechanism is 2.6 times that of a side pressure relief plate of the second side pressure relief mechanism.
CN202211375534.3A 2022-11-04 2022-11-04 Explosion-proof pressure relief device ventilates for cubical switchboard Withdrawn CN115800066A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211375534.3A CN115800066A (en) 2022-11-04 2022-11-04 Explosion-proof pressure relief device ventilates for cubical switchboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211375534.3A CN115800066A (en) 2022-11-04 2022-11-04 Explosion-proof pressure relief device ventilates for cubical switchboard

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Publication Number Publication Date
CN115800066A true CN115800066A (en) 2023-03-14

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Application Number Title Priority Date Filing Date
CN202211375534.3A Withdrawn CN115800066A (en) 2022-11-04 2022-11-04 Explosion-proof pressure relief device ventilates for cubical switchboard

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116937410A (en) * 2023-07-28 2023-10-24 山东汇能电气有限公司 Intelligent remote inflatable cabinet wireless monitoring system based on Internet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116937410A (en) * 2023-07-28 2023-10-24 山东汇能电气有限公司 Intelligent remote inflatable cabinet wireless monitoring system based on Internet

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