CN112702864B

CN112702864B - Self-sealing heat dissipation hole type fireproof electrical cabinet capable of reducing internal oxygen content

Info

Publication number: CN112702864B
Application number: CN202011588402.XA
Authority: CN
Inventors: 赵辉; 王周文磊
Original assignee: Shandong Ruike Complete Set Electric Co ltd
Current assignee: Shandong Ruike complete set Electric Co.,Ltd.
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2022-01-18
Anticipated expiration: 2040-12-29
Also published as: CN112702864A

Abstract

The invention discloses a self-sealing heat dissipation hole type fireproof electrical cabinet capable of reducing internal oxygen content, which comprises a device body, electrical equipment, a heat dissipation port and a dustproof net, wherein the electrical equipment is fixedly arranged inside the device body, the side of the device body is provided with the heat dissipation port, the dustproof net is fixedly connected inside the heat dissipation port, a sealing plate is arranged outside the heat dissipation port, the inner end of the sealing plate is arranged inside a guide column, the guide column is fixedly arranged inside the device body, the outer end of a traction rope is fixedly connected outside the upper end of the sealing plate, and a fixing cover is fixedly arranged at the upper end of the sealing plate. This reducible inside oxygen content from closed radiating hole formula fire prevention type regulator cubicle can be when the conflagration breaing out effectual shutoff louvre, avoids external air can be continuous to enter into the inside of regulator cubicle and makes to play combustion-supporting effect to the flame, and can be timely report to the police for staff on every side and remind.

Description

Self-sealing heat dissipation hole type fireproof electrical cabinet capable of reducing internal oxygen content

Technical Field

The invention relates to the related technical field of electrical cabinets, in particular to a self-sealing heat dissipation hole type fireproof electrical cabinet capable of reducing the internal oxygen content.

Background

Along with the development of society, the electric energy is indispensable in some areas and mill, however electrical equipment is in order to play effectual protection to it when the installation, can all install electrical equipment to the inside of regulator cubicle usually, the regulator cubicle is the cabinet body that forms through two kinds of steel materials processing such as hot-rolled steel plate and cold-rolled steel sheet, consequently the regulator cubicle is by extensive chemical industry, electric power system and traffic industry etc. the regulator cubicle has good heat-sinking capability mostly to open the louvre at the avris of regulator cubicle in order to guarantee that its inside has, thereby make inside and outside air have fine circulation.

However, most fire-proof electrical cabinets have the following problems:

firstly, a high-safety and good-heat-radiation-effect electrical cabinet with the publication number of CN109004552A, wherein' heat inside the cabinet body can be conveniently distributed out through a ventilation net on the side when the electrical cabinet is used, and meanwhile, a fire-extinguishing safety device is arranged, and the fire-extinguishing safety device comprises a fire extinguisher, a press switch, a guide rod, a tension spring, a support plate and a fire-extinguishing nozzle;

Secondly, current fire prevention type regulator cubicle is not convenient for in time play good warning effect for staff on every side when the conflagration breaks out in inside to lead to because of can not in time remind and then lead to the condition of a fire to continuously enlarge and bring more serious loss and danger for the staff.

We therefore propose a self-sealing, vented, fire-proof electrical cabinet that reduces the internal oxygen content, in order to solve the problems set forth above.

Disclosure of Invention

The invention aims to provide a self-closed heat-dissipation hole type fireproof electrical cabinet capable of reducing internal oxygen content, and aims to solve the problems that when the interior of the existing electrical cabinet on the market catches fire, holes in a dust screen are inconvenient to timely block, so that external air is easy to continuously enter the electrical cabinet and provide oxygen for a fire source when the fire breaks out, the overall fire extinguishing effect is greatly reduced, and when the fire breaks out in the interior, good warning and reminding effects are inconvenient to timely play for surrounding workers, so that the fire condition is continuously enlarged and more serious loss and danger are caused due to the fact that the workers cannot be reminded in time.

In order to achieve the purpose, the invention provides the following technical scheme: a self-sealing heat dissipation hole type fireproof electrical cabinet capable of reducing internal oxygen content comprises a device body, electrical equipment, a heat dissipation port and a dustproof net, wherein the electrical equipment is fixedly mounted inside the device body, the side of the device body is provided with the heat dissipation port, the dustproof net is fixedly connected inside the heat dissipation port, a sealing plate is mounted outside the heat dissipation port, a clamping block is mounted on the side of the inner end of the sealing plate, the inner side of the clamping block is connected with the sealing plate through a compression spring, the inner end of the sealing plate is mounted inside a guide post which is fixedly mounted inside the device body, the inner end of the guide post is connected with the sealing plate through an internal spring, the side of the guide post is provided with an insertion hole, a storage cavity is fixedly mounted inside the device body, and the side of the upper end of the storage cavity is provided with an air outlet, the internally mounted of storage cavity has the liftout pole, and the outside of liftout pole installs the linking gear, the middle part that links up the gear runs through installs well core rod, and the winding is connected with the haulage rope on well core rod, the removal rack is installed in the outside that links up the gear, and removes the left side upper end fixed mounting of rack and have cutting blade, the outer end fixed connection of haulage rope is in the upper end outside of closure plate, and the upper end fixed mounting of closure plate has fixed cover, circular gear is installed to the inboard of liftout pole, and installs the adjustable shelf on the circular gear to the inboard fixed mounting of adjustable shelf has the connecting rod.

Preferably, a rotating structure is formed between the end part of the clamping block and the inner end of the closing plate, and an elastic telescopic structure is formed between the closing plate and the inner part of the guide post through an internal spring.

Preferably, the closing plate is symmetrically arranged about a vertical central axis of the device body, the closing plate and the fixing cover are of a welding integrated structure, and the cross section of the fixing cover is of a semicircular structure.

Preferably, the avris all sets up to the zigzag structure about the jacking rod, and is sliding connection between jacking rod and the storage cavity to the lower extreme of storage cavity sets up to concave-convex form, and the inside packing of storage cavity has calcium bicarbonate moreover.

Preferably, a welding integrated structure is arranged between the movable rack and the cutting blade, the outer end of the movable rack is in sliding connection with the device body, and the cutting blade and the traction rope are located on the same vertical straight line.

Preferably, the lower extreme fixed mounting of connecting rod has the piston board, and the piston board is installed in the inside of handling the case to the avris of handling the case is installed and is spouted the pipe, and the breathing pipe is installed to the lower extreme of handling the case moreover, fixed mounting has the check valve on the pipe of spouting, and the lower extreme at the whistle is installed to the upper end of spouting the pipe.

Preferably, the whistle is positioned at the inner side of the fixed cover, the whistle and the air injection pipe are communicated with each other, and the air injection pipe and the air suction pipe are fixedly provided with one-way valves.

Preferably, the lower extreme middle part fixed mounting of piston plate has vertical pole, and the shifting block is installed in the outside of vertical pole to through reset spring interconnect between shifting block and the storage cavity.

Preferably, the lower extreme outside of vertical pole sets up to the spine column structure, and the lower extreme outside of vertical pole and the inner of shifting block laminate each other to the shifting block sets up to isosceles triangle structure, constitutes elastic telescopic structure through reset spring between shifting block and the storage cavity moreover.

Compared with the prior art, the invention has the beneficial effects that: the self-closed heat dissipation hole type fireproof electrical cabinet capable of reducing the internal oxygen content can effectively block heat dissipation holes when a fire disaster occurs, prevent external air from continuously entering the interior of the electrical cabinet, enable the flame to have a combustion supporting effect, and timely give an alarm and prompt to surrounding workers;

1. the closing plate is arranged, the traction rope can be wound by rotation of the engaging gear, meanwhile, the movement of the engaging gear can enable the cutting blade to move downwards, the traction rope can be cut off by the cutting blade moving downwards, the closing plate can reset in time, the heat dissipation holes can be effectively blocked by the aid of the reset closing plate, the fixing covers can be spliced into a funnel-shaped structure after the closing plate resets, the volume of alarming can be increased by splicing the funnel-shaped structure fixing covers, and accordingly external oxygen can be effectively prevented from entering the fire;

2. The whistle device is provided with a storage cavity, carbon dioxide is decomposed by heating calcium bicarbonate in the storage cavity, the rising rod can be jacked up along with the increase of the content of the carbon dioxide, the piston plate can reciprocate up and down under the action of the circular gear, the movable frame and the connecting rod after the rising rod moves, air in the device body can be pumped out through the air suction pipe and the air injection pipe through the reciprocating motion of the piston plate, so that the content of oxygen in the device body is reduced, and meanwhile, when the air is pumped out through the air injection pipe, the whistle can be blown by utilizing the sprayed air, so that the whistle can make enough sound to give a certain alarm reminding effect to surrounding workers;

3. be provided with vertical pole, when the lower extreme motion of jacking rod is higher than the gas outlet, thereby can make the carbon dioxide of generation outwards flow, utilize the carbon dioxide of outflow and then can further play the effect of putting out a fire, can drive vertical pole when piston plate up-and-down motion and carry out synchronous reciprocating motion, the reciprocating motion of vertical pole can make the shifting block carry out reciprocating motion about the inside of storage cavity under spine column structure and reset spring's effect, the shifting block through reciprocating motion about and then can strickle off the calcium bicarbonate of inside and improve the decomposition reaction effect of being heated of calcium bicarbonate from this.

Drawings

FIG. 1 is a schematic cross-sectional front view of the present invention;

FIG. 2 is a schematic cross-sectional view of the guide post and the insertion hole of the present invention;

FIG. 3 is a schematic view of a material storage chamber and an air outlet according to the present invention;

FIG. 4 is a schematic cross-sectional structural view of a material storage chamber and a pusher block of the present invention;

FIG. 5 is a side view of the moving rack and cutting blade of the present invention;

FIG. 6 is a schematic top view of the retaining cap of the present invention;

FIG. 7 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

fig. 8 is a schematic top view of the lift pin and circular gear of the present invention.

In the figure: 1. a device body; 2. an electrical device; 3. a heat dissipation port; 4. a dust screen; 5. a closing plate; 6. a clamping block; 7. a compression spring; 8. a guide post; 9. a built-in spring; 10. inserting holes; 11. a material storage cavity; 12. an air outlet; 13. a jacking rod; 14. engaging the gears; 15. a center pole; 16. a hauling rope; 17. moving the rack; 18. a cutting blade; 19. a fixed cover; 20. a circular gear; 21. a movable frame; 22. a connecting rod; 23. a piston plate; 24. a treatment tank; 25. a gas ejector tube; 26. a one-way valve; 27. a whistle; 28. an air intake duct; 29. a vertical rod; 30. shifting blocks; 31. a return spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: a self-sealing heat dissipation hole type fireproof electrical cabinet capable of reducing internal oxygen content comprises a device body 1, electrical equipment 2, a heat dissipation port 3, a dustproof net 4, a sealing plate 5, a clamping block 6, a compression spring 7, a guide post 8, a built-in spring 9, an inserting hole 10, a material storage cavity 11, an air outlet 12, a lifting rod 13, a connecting gear 14, a central rod 15, a traction rope 16, a moving rack 17, a cutting blade 18, a fixed cover 19, a circular gear 20, a movable frame 21, a connecting rod 22, a piston plate 23, a processing box 24, an air injection pipe 25, a one-way valve 26, a whistle 27, an air suction pipe 28, a vertical rod 29, a shifting block 30 and a reset spring 31, wherein the electrical equipment 2 is fixedly installed inside the device body 1, the heat dissipation port 3 is formed in the side of the device body 1, the dustproof net 4 is fixedly connected inside the heat dissipation port 3, the sealing plate 5 is installed outside the heat dissipation port 3, a clamping block 6 is arranged on the inner end side of the closing plate 5, the inner side of the clamping block 6 is connected with the closing plate 5 through a compression spring 7, the inner end of the closing plate 5 is arranged in a guide post 8, the guide post 8 is fixedly arranged in the device body 1, the inner side of the guide post 8 is connected with the closing plate 5 through a built-in spring 9, an inserting hole 10 is formed in the side of the guide post 8, a storage cavity 11 is fixedly arranged in the device body 1, an air outlet 12 is formed in the upper end side of the storage cavity 11, a lifting rod 13 is arranged in the storage cavity 11, a connecting gear 14 is arranged on the outer side of the lifting rod 13, a central rod 15 is arranged in the middle of the connecting gear 14 in a penetrating mode, a traction rope 16 is wound on the central rod 15, a moving rack 17 is arranged on the outer side of the connecting gear 14, and a cutting blade 18 is fixedly arranged on the upper end of the left side of the moving rack 17, the outer end of the hauling rope 16 is fixedly connected to the outer side of the upper end of the closing plate 5, the upper end of the closing plate 5 is fixedly provided with a fixed cover 19, the inner side of the jacking rod 13 is provided with a circular gear 20, the circular gear 20 is provided with a movable frame 21, and the inner side of the movable frame 21 is fixedly provided with a connecting rod 22.

A rotating structure is formed between the end part of the clamping block 6 and the inner end of the closing plate 5, an elastic telescopic structure is formed between the closing plate 5 and the inner part of the guide post 8 through the built-in spring 9, and the position of the closing plate 5 can be conveniently fixed through rotation of the clamping block 6 on the closing plate 5.

The closing plate 5 is symmetrically arranged about the vertical central axis of the device body 1, the closing plate 5 and the fixing cover 19 are of a welding integrated structure, the cross section of the fixing cover 19 is of a semicircular structure, the closing plate 5 can drive the fixing cover 19 to move synchronously, and the fixing cover 19 can form a funnel-shaped structure through the movement of the closing plate 5.

The avris all sets up to the zigzag structure about jacking rod 13, and is sliding connection between jacking rod 13 and the storage cavity 11 to the lower extreme of storage cavity 11 sets up to unsmooth form, and the inside packing of storage cavity 11 has calcium bicarbonate moreover, thereby can improve through the unsmooth form of storage cavity 11 lower extreme and steam between area of contact, improve the heat-absorbing capacity.

Move for welding integrated structure between rack 17 and the cutting blade 18, and be sliding connection between the outer end of moving rack 17 and the device body 1 to cutting blade 18 and haulage rope 16 are located same vertical straight line, and the motion of moving rack 17 can drive cutting blade 18 and carry out synchronous motion, thereby can cut off haulage rope 16 through the motion of cutting blade 18.

The lower extreme fixed mounting of connecting rod 22 has piston plate 23, and piston plate 23 installs in the inside of handling case 24 to handle the avris of case 24 and install jet-propelled pipe 25, handle the lower extreme of case 24 in addition and install breathing pipe 28, fixed mounting has check valve 26 on the jet-propelled pipe 25, and the lower extreme at whistle 27 is installed to the upper end of jet-propelled pipe 25, and the motion of connecting rod 22 can drive piston plate 23 and carry out synchronous motion in the inside of handling case 24.

The whistle 27 is located at the inner side of the fixed cover 19, the whistle 27 and the air injection pipe 25 are communicated with each other, the one-way valve 26 is fixedly installed on the air injection pipe 25 and the air suction pipe 28, the backflow of air can be avoided by utilizing the one-way valve 26, and the whistle 27 is blown by utilizing the air flow sprayed by the air injection pipe 25 to make the whistle 27 generate a sound.

Vertical rod 29 is fixedly installed in the lower extreme middle part of piston plate 23, and shifting block 30 is installed in the outside of vertical rod 29 to through reset spring 31 interconnect between shifting block 30 and the storage cavity 11, piston plate 23's reciprocating motion can drive its vertical rod 29 of lower extreme and carry out synchronous motion.

The lower extreme outside of vertical pole 29 sets up to the thorn column structure, and the lower extreme outside of vertical pole 29 and the inner of shifting block 30 laminate each other to shifting block 30 sets up to the isosceles triangle structure, constitutes elasticity extending structure through reset spring 31 between shifting block 30 and the storage cavity 11 in addition, and vertical pole 29's motion can extrude shifting block 30 under the effect of thorn column structure, and shifting block 30 can control reciprocating motion at reset spring 31 this moment.

The working principle is as follows: when the self-closed heat dissipation hole type fireproof electrical cabinet capable of reducing the internal oxygen content is used, firstly, as shown in fig. 1-8, when a fire breaks out inside the device body 1, the temperature inside the device body 1 rises, at the moment, calcium bicarbonate inside the storage cavity 11 is heated and decomposed into carbon dioxide, meanwhile, the contact area between the calcium bicarbonate and hot air can be increased by utilizing the concave-convex shape of the lower end of the storage cavity 11, so that the heat absorption effect is improved, the carbon dioxide generated after the reaction inside the storage cavity 11 increases, so that the lifting rod 13 can be lifted up to enable the lifting rod 13 to move upwards, the engaging gear 14 on the outer side can be rotated in the upward movement process of the lifting rod 13, the pulling rope 16 can be wound under the action of the central rod 15 due to the rotation of the engaging gear 14, and meanwhile, the moving rack 17 can be moved to drive the cutting blade 18 to move downwards due to the movement of the engaging gear 14, the traction rope 16 can be cut off after the cutting blade 18 moves downwards, as shown in fig. 1 and fig. 2, the built-in spring 9 which is in a stretching state per se is reset, the reset built-in spring 9 pulls the closing plate 5 to move inwards, when the closing plate 5 moves in the guide post 8, the clamping block 6 rotates to the inside of the closing plate 5, then the closing plate 5 moves, when the clamping block 6 moves to be right below the plug hole 10, the clamping block 6 resets, so that the position of the closing plate 5 can be fixed, then the closing plate 5 and the heat dissipation port 3 are mutually attached, the heat dissipation port 3 can be blocked by utilizing the closing plate 5 which is mutually closed with the heat dissipation port 3, external air can continuously enter the device body 1 after the device body 1 catches fire, as shown in fig. 1 and fig. 6, after the closing plate 5 moves inwards, the fixing covers 19 which are fixedly connected with the upper ends of the closing plate can be mutually spliced, the spliced fixing cover 19 thus forms a funnel-shaped structure;

As shown in fig. 1, 7 and 8, when the lifting rod 13 moves, the circular gear 20 can also be rotated, the movable frame 21 and the connecting rod 22 can drive the piston plate 23 to reciprocate up and down in the treatment box 24 through the rotation of the circular gear 20, negative pressure can be generated in the treatment box 24 through the piston plate 23 reciprocating up and down, the internal air of the device body 1 is firstly sucked into the treatment box 24 through the air suction pipe 28, and then the sucked air is extruded outwards through the air injection pipe 25, because the air injection pipe 25 and the whistle 27 are communicated with each other, when the air injection pipe 25 injects the air, the whistle 27 can be blown, the whistle 27 can make a sound, a certain alarm prompt can be given to surrounding workers through the sound, and then because the closing plate 5 moves inwards, the fixed covers 19 fixedly connected with the upper ends of the closing plate can be spliced with each other, therefore, the spliced fixing cover 19 forms a funnel-shaped structure, and the whistle 27 can be sounded and expanded by the fixing cover 19 with the funnel-shaped structure, so that the working personnel can hear the alarm sound more clearly;

as shown in fig. 1 and fig. 3-4, when the lifting rod 13 is moved upward and the lower end of the lifting rod 13 is located above the air outlet 12 at the upper end of the storage cavity 11, carbon dioxide generated by decomposition of calcium bicarbonate is sprayed out through the air outlet 12, and the sprayed carbon dioxide can perform a certain fire extinguishing function, and simultaneously the piston plate 23 can drive the vertical rod 29 to perform synchronous motion after performing vertical reciprocating motion, and the vertical rod 29 can move to extrude the shifting block 30 by using the sharp-pointed structure at the side of the vertical rod 29, and at this time, the shifting block 30 performs left-right reciprocating motion under the action of the return spring 31, so that the calcium bicarbonate inside the storage cavity 11 can be flattened by using the shifting block 30 performing left-right reciprocating motion, and the overall thermal decomposition efficiency of calcium bicarbonate is further improved.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a reducible inside oxygen content from closed heat dissipation cellular type fire prevention type regulator cubicle, includes device body (1), electrical equipment (2), thermovent (3) and dust screen (4), its characterized in that: the device is characterized in that an electric device (2) is fixedly mounted inside the device body (1), a heat dissipation port (3) is formed in the side of the device body (1), a dustproof net (4) is fixedly connected inside the heat dissipation port (3), a sealing plate (5) is mounted on the outer side of the heat dissipation port (3), a clamping block (6) is mounted on the side of the inner end of the sealing plate (5), the inner side of the clamping block (6) is connected with the sealing plate (5) through a compression spring (7), the inner end of the sealing plate (5) is mounted inside a guide column (8), the guide column (8) is fixedly mounted inside the device body (1), the inside of the guide column (8) is connected with the sealing plate (5) through an internal spring (9), a splicing hole (10) is formed in the side of the guide column (8), and a material storage cavity (11) is fixedly mounted inside the device body (1), and the side of the upper end of the material storage cavity (11) is provided with an air outlet (12), a jacking rod (13) is arranged inside the material storage cavity (11), and the outer side of the jacking rod (13) is provided with a connecting gear (14), the middle part of the connecting gear (14) is provided with a central rod (15) in a penetrating way, a traction rope (16) is wound and connected on the central rod (15), a movable rack (17) is arranged on the outer side of the engaging gear (14), and the upper end of the left side of the movable rack (17) is fixedly provided with a cutting blade (18), the outer end of the traction rope (16) is fixedly connected to the outer side of the upper end of the closing plate (5), a fixed cover (19) is fixedly arranged at the upper end of the closing plate (5), a circular gear (20) is arranged at the inner side of the jacking rod (13), and a movable frame (21) is arranged on the circular gear (20), and a connecting rod (22) is fixedly arranged on the inner side of the movable frame (21).

2. The self-sealing heat-dissipating hole type fireproof electrical cabinet capable of reducing internal oxygen content according to claim 1, wherein: a rotating structure is formed between the end part of the clamping block (6) and the inner end of the closing plate (5), and an elastic telescopic structure is formed between the closing plate (5) and the inner part of the guide post (8) through an internal spring (9).

3. The self-sealing heat-dissipating hole type fireproof electrical cabinet capable of reducing internal oxygen content according to claim 1, wherein: the sealing plate (5) is symmetrically arranged about a vertical central axis of the device body (1), a welding integrated structure is arranged between the sealing plate (5) and the fixing cover (19), and the cross section of the fixing cover (19) is of a semicircular structure.

4. The self-sealing heat-dissipating hole type fireproof electrical cabinet capable of reducing internal oxygen content according to claim 1, wherein: the avris all sets up to the zigzag structure about jacking rod (13), and is sliding connection between jacking rod (13) and storage cavity (11) to the lower extreme of storage cavity (11) sets up to concave-convex form, and the inside packing of storage cavity (11) has calcium bicarbonate moreover.

5. The self-sealing heat-dissipating hole type fireproof electrical cabinet capable of reducing internal oxygen content according to claim 1, wherein: the movable rack (17) and the cutting blade (18) are of a welding integrated structure, the outer end of the movable rack (17) is in sliding connection with the device body (1), and the cutting blade (18) and the traction rope (16) are located on the same vertical straight line.

6. The self-sealing heat-dissipating hole type fireproof electrical cabinet capable of reducing internal oxygen content according to claim 1, wherein: the lower extreme fixed mounting of connecting rod (22) has piston board (23), and piston board (23) install in the inside of handling case (24) to air blast pipe (25) are installed to the avris of handling case (24), and the lower extreme of handling case (24) installs breathing pipe (28) moreover, fixed mounting has check valve (26) on air blast pipe (25), and the lower extreme at whistle (27) is installed to the upper end of air blast pipe (25).

7. The self-sealing heat-dissipating hole type fireproof electrical cabinet capable of reducing internal oxygen content according to claim 6, wherein: the whistle (27) is positioned on the inner side of the fixed cover (19), the whistle (27) and the air injection pipe (25) are communicated with each other, and the air injection pipe (25) and the air suction pipe (28) are fixedly provided with one-way valves (26).

8. The self-sealing heat-dissipating hole type fireproof electrical cabinet capable of reducing internal oxygen content according to claim 6, wherein: the lower end middle part fixed mounting of piston plate (23) has vertical pole (29), and shifting block (30) are installed in the outside of vertical pole (29) to through reset spring (31) interconnect between shifting block (30) and storage cavity (11).

9. The self-sealing heat-dissipating hole type fireproof electrical cabinet capable of reducing internal oxygen content according to claim 8, wherein: the lower extreme outside of vertical pole (29) sets up to the spine column structure, and the lower extreme outside of vertical pole (29) and the inner of shifting block (30) laminate each other to shifting block (30) set up to the isosceles triangle structure, constitute elastic telescopic structure through reset spring (31) between shifting block (30) and storage cavity (11) moreover.