CN112563905A

CN112563905A - Fireproof power distribution cabinet

Info

Publication number: CN112563905A
Application number: CN202110085403.0A
Authority: CN
Inventors: 杨裕显
Original assignee: Individual
Current assignee: Shandong Runtai Electrical Equipment Co.,Ltd.
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-03-26
Anticipated expiration: 2041-01-22
Also published as: CN112563905B

Abstract

The invention discloses a fireproof power distribution cabinet which comprises a cabinet body, wherein a base is arranged at the bottom of the cabinet body, a piston rod is arranged at the upper end of the base, an installation cavity is formed in the cabinet body, a hollow supporting tube is arranged in the installation cavity, a movable cavity with an opening at the bottom is formed in the supporting tube, one end of the piston rod is inserted into the movable cavity, a first sealing piston is arranged at the insertion end of the piston rod, a supporting air bag is arranged between the bottom of the cabinet body and the base, and extension tubes are respectively arranged on two sides of the supporting tube. The power distribution cabinet disclosed by the invention has very good fireproof capacity, and the service life of the cabinet body can be effectively prolonged.

Description

Fireproof power distribution cabinet

Technical Field

The invention relates to the field of power distribution, in particular to a fireproof power distribution cabinet.

Background

The distribution cabinet (case) is a final-stage device of a distribution system and is a general name of a motor control center.

At present, the inside a large amount of distribution modules that have used of switch board, the heat is concentrated between the distribution module, and power module is ageing easily, the short circuit, and easily receives external environment influence, leads to the switch board often to have the potential safety hazard that appears on fire, and the fire behavior of present switch board is relatively poor, can only the early warning generally, can not put out the source of a fire the very first time when on fire, and the fire safety is relatively poor.

Disclosure of Invention

The technical problem to be solved by the invention is that the fireproof power distribution cabinet can pull out the whole electric box outwards at the first time when a fire breaks out at a local position, enable the power distribution modules to be mutually far away, and simultaneously seal the electric cavity and extract partial air to achieve the capability of quickly extinguishing the fire.

The invention is realized by the following technical scheme: a fireproof power distribution cabinet comprises a cabinet body, wherein a cabinet door is arranged on the front end face of the cabinet body, a base is arranged at the bottom of the cabinet body, a piston rod is arranged at the upper end of the base, an installation cavity is formed in the cabinet body, a hollow supporting pipe is arranged in the installation cavity, a movable cavity with an opening at the bottom is formed in the supporting pipe, one end of the piston rod is inserted into the movable cavity, a first sealing piston is arranged at the insertion end of the piston rod, a supporting air bag is arranged between the bottom of the cabinet body and the base, extension pipes are respectively arranged on two sides of the supporting pipe, a push-pull rod is arranged in each extension pipe, one end of each push-pull rod is inserted into each extension pipe, a second sealing piston is arranged at the extension end of each push-pull rod, a push-pull cavity is arranged in each extension pipe, a first spring is arranged on the convex part of, the outer ends of the push-pull rods are fixedly connected with a movable cover plate;

the improved air bag cabinet is characterized in that sealing plates are arranged on two sides of the cabinet body respectively, an inclined splicing surface is formed between the upper end and the lower end of each sealing plate and the cabinet body, an electric box is arranged at the inner side end of each sealing plate, an electric cavity is formed in each electric box, more than one power distribution module is installed in each electric cavity through a mounting plate, a sealing convex portion protruding outwards is arranged on one side of each movable cover plate opposite to each electric cavity, when no gas exists in each support air bag, the movable cover plates move relative to one side of each electric box, and a connecting guide mechanism is further arranged at the positions of four.

According to the preferable technical scheme, the connection guiding mechanism comprises a fixed pipe fixed on the sealing plate, a telescopic rod is arranged in a fixed channel in the fixed pipe, a third sealing piston is installed on the telescopic rod, a second spring is installed on the telescopic rod located on one side of the second sealing piston, one end of the second spring is fixedly connected with the third sealing piston, the other end of the second spring is fixedly contacted with a limiting opening at the opening end of the outer side of the fixed channel, and the fixed pipe is connected with an electric cavity in the electric box through an air guide pipe.

As the preferred technical scheme, the outer side end of the telescopic rod is fixedly installed on a fixing plate inside the cabinet body, and the upper end face of the fixing plate is welded and fixed with the top face of the installation cavity.

As an optimized technical scheme, a silica gel sealing sheet is arranged on the inclined splicing surface, and the sealing plate is tightly pressed and sealed towards the inclined splicing surface on the cabinet body through a second spring connected with the inside of the guide mechanism.

As an optimized technical scheme, a fixed disk is arranged in the middle of a movable cover plate and is fixedly connected with the movable cover plate through more than one connecting rod, more than one hollow cavity is formed in the middle of the movable cover plate, an elastic sealing layer is installed in the hollow cavity in a sealing mode, and one end of a push-pull rod is welded and fixed with the fixed disk.

Preferably, the support airbag is provided with an extension conduit, and the extension conduit passes through the cabinet body and the electrical box, extends into the electrical cavity and extends close to each power distribution module.

As a preferred technical scheme, fireproof coating layers are coated on the front and back surfaces of the elastic sealing layer, and the extension conduit is made of inflammable rubber materials.

The invention has the beneficial effects that: when the power distribution cabinet is on fire, flame can destroy the supporting air bag, so that the sealing plate is ejected out after the supporting air bag leaks air, the power distribution modules can be separated from each other, meanwhile, the whole electric cavity can be sealed by the movable cover plate, and part of gas in the electric cavity is pumped out, so that the purpose of quickly extinguishing the flame is achieved, and the fire safety of the power distribution cabinet is greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of a portion of the invention at A in FIG. 1;

FIG. 3 is an enlarged view of a portion of the present invention at B of FIG. 1;

FIG. 4 is a side schematic view of the removable cover of the present invention;

fig. 5 is a diagram illustrating a state of use of the present invention in a fire-proof state.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The use of terms such as "upper," "above," "lower," "below," and the like in describing relative spatial positions herein is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly

In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1, the fireproof power distribution cabinet of the present invention includes a cabinet body 6, a cabinet door is disposed on the front end face of the cabinet body 6, a base 17 is disposed at the bottom of the cabinet body 6, a piston rod 16 is disposed at the upper end of the base 17, an installation cavity 2 is disposed inside the cabinet body 6, a hollow support tube 7 is disposed in the installation cavity 2, a movable cavity with an opening at the bottom is disposed inside the support tube 7, one end of the piston rod 16 is inserted into the movable cavity, a first sealing piston (not shown) is disposed at the insertion end thereof, and a support airbag 18 is disposed between the bottom of the cabinet body 6 and the base 17;

as shown in fig. 2, two sides of the support tube 7 are respectively provided with an extension tube 21, a push-pull rod 22 is arranged in the extension tube 21, one end of the push-pull rod 22 is inserted into the extension tube 21, the extending end of the push-pull rod is provided with a second sealing piston 21, a push-pull cavity is arranged in the extension tube 21, a first spring 32 is arranged on the convex part of the second sealing piston, the other end of the first spring 32 is fixedly connected with the bottom surface of the push-pull cavity, a small hole (not shown) is arranged between the bottom surface of the push-pull cavity and the movable cavity for conduction, and the outer side end of the push-pull rod 22 is fixedly;

the both sides of the cabinet body 6 set up a closing plate 1 respectively, form an slope concatenation face 3 between the last lower extreme of closing plate 1 and the cabinet body 6, the medial extremity of closing plate 1 all sets up an electric box 11, all be provided with an electric chamber 13 in the electric box 11, install more than one distribution module 12 through the mounting panel in the electric chamber 13, removable cover 15 is just being provided with the sealed convex part 14 of an evagination to electric chamber one side, when supporting the inside gaslessness of gasbag, removable cover moves on one side of the relative electric box, the position at four angles of every closing plate still all is provided with a connection guiding mechanism.

In this embodiment, as shown in fig. 3, the connection guiding mechanism includes a fixing tube 4 fixed on the sealing plate 1, a telescopic rod 5 is disposed in a fixing channel in the fixing tube 4, a third sealing piston 33 is installed on the telescopic rod 5, a second spring 34 is installed on the telescopic rod located on one side of the second sealing piston 33, one end of the second spring 34 is fixedly connected to the third sealing piston 33, the other end of the second spring 34 is fixed in contact with a limiting opening at an outer opening end of the fixing channel, and the fixing tube 4 is connected to and conducted with an electrical cavity inside the electrical box 11 through an air duct 9.

Wherein, the outside end fixed mounting of telescopic link 5 is on the fixed plate 8 of the internal portion of cabinet, and 8 up end of fixed plate and 2 top surfaces welded fastening in installation cavity.

Wherein, be provided with the silica gel gasket on the slope concatenation face 3, the closing plate 1 compresses tightly sealed towards the slope concatenation face 3 on the cabinet body through the inside second spring of connecting the guiding mechanism, and the contact through the silica gel gasket realizes fine contact seal nature.

As shown in fig. 4, a fixed disk 25 is disposed in the middle of the movable cover plate 15, the fixed disk 25 is fixedly connected to the movable cover plate through more than one connecting rod 24, more than one hollow cavity is formed in the middle of the movable cover plate 15, an elastic sealing layer 23 is hermetically installed in the hollow cavity, and one end of the push-pull rod 22 is welded and fixed to the fixed disk 25.

The support airbag 18 is provided with an extension duct 19, and the extension duct 19 extends through the cabinet and the electrical box into the electrical cavity and extends close to each power distribution module 12. When a local power distribution module is on fire, the extension guide pipe 19 of rubber can be damaged by heat, the whole supporting air bag leaks air at the moment, the whole cabinet body loses the supporting force and presses down after air leakage, the supporting pipe moves relative to the piston rod, the first sealing piston on the piston rod is utilized to extrude the air in the supporting pipe into the extension pipe, the second sealing piston in the extension pipe is further ejected, the push-pull rod is further ejected, the movable cover plate outside the push-pull rod moves towards one end of the electrical box and finally is in sealing contact with the electrical cavity of the electrical box, and the whole electrical cavity is in a closed state.

Along with the cabinet body continues to push down, more and more air can enter into the extension pipe for the continuous outside ejecting of push-pull rod can continue outwards ejecting closing plate, can continue outwards ejecting closing plate after removable cover and electric box contact are sealed, make electric box ejecting to the outside of cabinet body, as shown in fig. 5, closing plate at this moment separates with the cabinet body gradually, and the distribution module between two closing plates begins to keep away from, prevents the transmission of flame. When the sealing plate is ejected out, one end of the telescopic rod is fixed, the fixing pipe moves towards the far end, air in the electric cavity is pumped out to the fixing pipe through the second sealing piston and the air guide pipe, the elastic sealing layer on the movable cover plate is concave, the electric cavity is changed into a vacuum environment as far as possible, and the purposes of removing oxygen and extinguishing flame are achieved.

The front and back surfaces of the elastic sealing layer are coated with fireproof coating layers, and the extension conduit is made of inflammable rubber materials to prevent flame from damaging the elastic sealing layer.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a fire prevention switch board which characterized in that: comprises a cabinet body, a cabinet door is arranged on the front end surface of the cabinet body, a base is arranged at the bottom of the cabinet body, a piston rod is arranged at the upper end of the base, an installation cavity is arranged in the cabinet body, a hollow supporting tube is arranged in the installation cavity, a movable cavity with an opening at the bottom is arranged in the supporting tube, one end of the piston rod is inserted into the movable cavity, a first sealing piston is arranged at the insertion end of the cabinet body, a supporting air bag is arranged between the bottom of the cabinet body and the base, an extension pipe is respectively arranged at two sides of the support pipe, a push-pull rod is arranged in the extension pipe, one end of the push-pull rod is inserted into the extension pipe, a second sealing piston is arranged at the extending end of the extension pipe, a push-pull cavity is arranged in the extension pipe, a first spring is arranged on the convex part of the second sealing piston, the other end of the first spring is fixedly connected with the bottom surface of the push-pull cavity, a small hole is arranged between the bottom surface of the push-pull cavity and the movable cavity for conduction, and the outer side ends of the push-pull rods are fixedly connected with a movable cover plate;

2. The flameproof power distribution cabinet of claim 1, characterized in that: the connecting and guiding mechanism comprises a fixed pipe fixed on the sealing plate, a telescopic rod is arranged in a fixed passage in the fixed pipe, a third sealing piston is installed on the telescopic rod, a second spring is installed on the telescopic rod positioned on one side of the second sealing piston, one end of the second spring is fixedly connected with the third sealing piston, the other end of the second spring is fixed in contact with a limiting opening of an opening end at the outer side of the fixed passage, and the fixed pipe is connected and conducted with an electric cavity inside the electric box through an air duct.

3. The flameproof power distribution cabinet of claim 2, characterized in that: the outer side end of the telescopic rod is fixedly installed on a fixing plate inside the cabinet body, and the upper end face of the fixing plate is welded and fixed with the top face of the installation cavity.

4. The flameproof power distribution cabinet of claim 1, characterized in that: the inclined splicing surfaces are provided with silica gel sealing pieces, and the sealing plate is tightly pressed and sealed towards the inclined splicing surfaces on the cabinet body through a second spring connected with the inside of the guide mechanism.

5. The flameproof power distribution cabinet of claim 1, characterized in that: the middle of the movable cover plate is provided with a fixed plate which is fixedly connected with the movable cover plate through more than one connecting rod, more than one hollow cavity is formed in the middle of the movable cover plate, an elastic sealing layer is hermetically arranged in the hollow cavity, and one end of the push-pull rod is welded and fixed with the fixed plate.

6. The flameproof power distribution cabinet of claim 1, characterized in that: the support air bag is provided with an extension conduit, and the extension conduit penetrates through the cabinet body and the electrical box, extends into the electrical cavity and extends close to each power distribution module.

7. The flameproof power distribution cabinet of claim 5, wherein: fireproof coating layers are coated on the front side and the back side of the elastic sealing layer, and the extension guide pipe is made of inflammable rubber materials.