CN216054369U

CN216054369U - Explosion-proof switch box for turbonator

Info

Publication number: CN216054369U
Application number: CN202121784398.4U
Authority: CN
Inventors: 胡桂林; 王�华; 庞明刚; 陈晨晨
Original assignee: Yangchun New Iron and Steel Co Ltd
Current assignee: Yangchun New Iron and Steel Co Ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-03-15
Anticipated expiration: 2031-08-02

Abstract

The utility model discloses an explosion-proof switch box for a steam turbine generator, which comprises a box body and a cover body, wherein the upper end of the box body is symmetrically provided with a plurality of limiting mechanisms, the bottom of the cover body is fixedly connected with a plurality of fixing mechanisms which respectively extend into the limiting mechanisms opposite to the fixing mechanisms, the cover body is provided with a resetting mechanism, the free ends of the fixing mechanisms are fixedly connected with the bottom of the resetting mechanism, the bottom of the cover body is fixedly connected with a sealing air bag which is abutted against the inner side wall of the box body, and the cover body is provided with an air conveying mechanism which is communicated with the sealing air bag. The anti-explosion switch box is reasonable in structural design, the cover body can be conveniently connected with the box body, the operation is simple and convenient, the installation and disassembly work is convenient to carry out, the sealing performance between the cover body and the box body can be guaranteed, moisture in air is prevented from entering the box body, the safety of the anti-explosion switch box is guaranteed, and the service life of the anti-explosion switch and the wiring is guaranteed.

Description

Explosion-proof switch box for turbonator

Technical Field

The utility model relates to the technical field of explosion-proof switch boxes, in particular to an explosion-proof switch box for a steam turbine generator.

Background

An explosion-proof switch box is a connection protection switch device with good sealing performance used in an explosive environment for connecting and disconnecting an electric circuit connection control circuit, and generally comprises an explosion-proof switch arranged inside and a wiring terminal used for cable connection, wherein an explosion-proof shell and an explosion-proof cover enclose a closed cavity, and the box body adopts a sealing technology to carry out sealing protection on a connecting part of a cable and is commonly used for controlling, lighting or switching and wiring of power circuit cable branches.

At present, explosion-proof switch box is in the use, carry out fastening connection through a plurality of bolts mostly between its box body and the lid, the installation is dismantled comparatively loaded down with trivial details, and take place the bolt phenomenon of losing after dismantling easily, and the leakproofness between box body and the lid is relatively poor, make the moisture in the air get into in the box body easily, on adhering to explosion-proof switch and wiring, there is the potential safety hazard, and influence the life of explosion-proof switch and wiring, we have designed an explosion-proof switch box for turbogenerator for this reason and have solved above problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that in the prior art, most of box bodies and cover bodies are fastened and connected through a plurality of bolts, the installation and the disassembly are complicated, the bolts are easy to lose after the box bodies and the cover bodies are disassembled, the sealing performance between the box bodies and the cover bodies is poor, moisture in air is easy to enter the box bodies, potential safety hazards exist, and the service lives of an explosion-proof switch and a connecting wire are influenced.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an explosion-proof switch box for turbo generator, includes box body and lid, the upper end symmetry of box body is equipped with a plurality of stop gear, the bottom fixedly connected with of lid is a plurality of extend to the fixed establishment rather than in the relative stop gear respectively, be equipped with canceling release mechanical system on the lid, it is a plurality of fixed establishment's free end all with canceling release mechanical system's bottom fixed connection, the sealed gasbag that the inside wall of the bottom fixedly connected with box body of lid offsets, be equipped with the gas transmission mechanism who communicates each other with sealed gasbag on the lid.

Preferably, the limiting mechanism comprises a first limiting groove formed in the upper end of the box body, and a second limiting groove is formed in the inner side wall of the first limiting groove.

Preferably, fixed establishment includes the U template of fixed connection in the lid bottom, the U template extends to first spacing inslot, sliding connection has the trapezoidal piece that extends to the second spacing inslot in the U template, be connected with a plurality of first springs between the inside wall of trapezoidal piece and U template, the lateral wall fixedly connected with stay cord of trapezoidal piece.

Preferably, canceling release mechanical system is including seting up the mounting groove in the lid upper end, the inside wall of mounting groove rotates and is connected with the gear, sliding connection has the rack plate with gear engaged with in the mounting groove, and is a plurality of the free end of stay cord all runs through the lateral wall of U template, mounting groove in proper order and with the bottom fixed connection of rack plate, the preceding lateral wall fixedly connected with of gear rather than coaxial pivoted board that resets, the draw-in groove has been seted up to the inside wall of mounting groove, the lateral wall of the board that resets is equipped with the positioning mechanism who extends to in the draw-in groove.

Preferably, positioning mechanism is including seting up the constant head tank on the board lateral wall that resets, sliding connection has the L template that extends to in the draw-in groove in the constant head tank, be connected with a plurality of second springs between the inside wall of L template and constant head tank.

Preferably, the gas transmission mechanism is including seting up the gas transmission groove on the lid, gas transmission inslot sealing sliding connection has sealed piece, the lateral wall of sealed piece rotates and is connected with the threaded rod, the threaded rod runs through the inside wall in gas transmission groove and rather than threaded connection, gas transmission inslot sealing runs through and is equipped with the gas-supply pipe, the sealed lateral wall that runs through sealed gasbag of gas-supply pipe communicates each other rather than.

Compared with the prior art, the utility model has the beneficial effects that:

1. through the setting of first spacing groove, second spacing groove, fixed establishment, canceling release mechanical system, can be convenient for be connected lid and box body, easy and simple to handle, the going on of installation, dismantlement work of being convenient for.

2. Through the setting of sealed gasbag, gas transmission mechanism, can ensure the leakproofness between lid and the box body, avoid the moisture in the air to get into in the box body, guarantee its security, guarantee explosion-proof switch and the life of wiring.

In conclusion, the anti-explosion switch and the anti-explosion wiring box are reasonable in structural design, the cover body and the box body can be conveniently connected, the operation is simple and convenient, the mounting and dismounting work is convenient to carry out, the sealing performance between the cover body and the box body can be guaranteed, moisture in air is prevented from entering the box body, the safety of the box body is guaranteed, and the service lives of the anti-explosion switch and the wiring are guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of an explosion-proof switch box for a steam turbine generator according to the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is an enlarged view of the structure at B in FIG. 1;

fig. 4 is an enlarged view of the structure at C in fig. 1.

In the figure: the air bag type air bag comprises a box body 1, a cover body 2, a first limiting groove 3, a second limiting groove 4, a U-shaped plate 5, a trapezoidal block 6, a first spring 7, a pull rope 8, an installation groove 9, a gear 10, a rack plate 11, a reset plate 12, a clamping groove 13, a positioning groove 14, a L-shaped plate 15, a second spring 16, a sealed air bag 17, an air conveying groove 18, a sealed block 19, a threaded rod 20 and an air conveying pipe 21.

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.

Referring to fig. 1-4, an explosion-proof switch box for a turbonator comprises a box body 1 and a cover body 2, wherein the upper end of the box body 1 is symmetrically provided with a plurality of limiting mechanisms, each limiting mechanism comprises a first limiting groove 3 arranged at the upper end of the box body 1, the inner side wall of each first limiting groove 3 is provided with a second limiting groove 4, the bottom of the cover body 2 is fixedly connected with a plurality of fixing mechanisms respectively extending into the limiting mechanisms opposite to the bottom of the cover body, each fixing mechanism comprises a U-shaped plate 5 fixedly connected to the bottom of the cover body 2, each U-shaped plate 5 extends into the corresponding first limiting groove 3, a trapezoidal block 6 extending into the corresponding second limiting groove 4 is slidably connected in each U-shaped plate 5, a plurality of first springs 7 are connected between each trapezoidal block 6 and the inner side wall of the corresponding U-shaped plate 5, the side walls of the trapezoidal blocks 6 are fixedly connected with pull ropes 8, it should be noted that the first springs 7 are elastic springs, the trapezoidal blocks 6 can be pushed into the second limiting grooves 4 under a natural state, the box body 1 and the cover body 2 can be stably connected, and the falling-off phenomenon of the box body and the cover body is avoided;

the cover body 2 is provided with a resetting mechanism, the free ends of a plurality of fixing mechanisms are all fixedly connected with the bottom of the resetting mechanism, the resetting mechanism comprises a mounting groove 9 arranged at the upper end of the cover body 2, the inner side wall of the mounting groove 9 is rotatably connected with a gear 10, a rack plate 11 meshed with the gear 10 is slidably connected in the mounting groove 9, the free ends of a plurality of pull ropes 8 sequentially penetrate through the side wall of the U-shaped plate 5 and the side wall of the mounting groove 9 and are fixedly connected with the bottom of the rack plate 11, the front side wall of the gear 10 is fixedly connected with a resetting plate 12 which coaxially rotates with the gear 10, when the return plate 12 is rotated downward, the gear 10 can be rotated, and the rack plate 11 can be slid upward by the meshing action thereof, the pull rope 8 is wound up, so that the trapezoidal block 6 can be pulled into the U-shaped plate 5, and the U-shaped plate 5 is conveniently moved out of the first limiting groove 3 to separate the box body 1 from the cover body 2;

a clamping groove 13 is formed in the inner side wall of the mounting groove 9, a positioning mechanism extending into the clamping groove 13 is arranged on the side wall of the reset plate 12, the positioning mechanism comprises a positioning groove 14 formed in the side wall of the reset plate 12, an L-shaped plate 15 extending into the clamping groove 13 is connected in the positioning groove 14 in a sliding manner, a plurality of second springs 16 are connected between the L-shaped plate 15 and the inner side wall of the positioning groove 14, and it is noted that the second springs 16 are elastic springs and can push the L-shaped plate 15 into the clamping groove 13 in a natural state, so that the reset plate 12 is stably fixed and prevented from rotating;

the bottom of the cover body 2 is fixedly connected with a sealing air bag 17 abutted against the inner side wall of the box body 1, the cover body 2 is provided with an air conveying mechanism communicated with the sealing air bag 17, the air conveying mechanism comprises an air conveying groove 18 arranged on the cover body 2, a sealing block 19 is hermetically and slidably connected in the air conveying groove 18, the side wall of the sealing block 19 is rotatably connected with a threaded rod 20, the threaded rod 20 penetrates through the inner side wall of the air conveying groove 18 and is in threaded connection with the inner side wall, an air conveying pipe 21 is hermetically and penetratingly arranged in the air conveying groove 18, the air conveying pipe 21 hermetically penetrates through the side wall of the sealing air bag 17 and is communicated with the sealing air bag, it is noted that the threaded rod 20 can be rotated under the meshing action to enable the threaded rod to slide into the air conveying groove 18, the sealing block 19 can be further pushed to slide in the air conveying groove 18, the air in the air conveying groove 18 is pushed into the sealing air bag 17 through the air conveying pipe 21 to enable the sealing air bag to expand and abut against the inner side wall of the box body 1, the sealing performance is guaranteed.

The utility model can be illustrated by the following operating modes:

in the utility model, when the explosion-proof switch box needs to be installed, after wiring is finished, the cover body 2 is arranged on the box body 1, the U-shaped plate 5 is opposite to the first limiting groove 3, the cover body 2 is pushed, when the trapezoidal block 6 abuts against the upper end of the box body 1, the bottom of the trapezoidal block 6 is obliquely arranged, the trapezoidal block 6 can slide towards the U-shaped plate 5 firstly, when the trapezoidal block 6 is opposite to the second limiting groove 4, the trapezoidal block 6 can be pushed into the second limiting groove 4 under the action of the elastic force of the first spring 7, the cover body 2 is stably connected with the box body 1, the threaded rod 20 is rotated, under the meshing action, the threaded rod pushes the sealing block 19 to slide in the gas transmission groove 18, the gas in the gas transmission groove 18 is pushed into the sealing air bag 17 through the gas transmission pipe 21, the gas is expanded and abuts against the inner side wall of the box body 1, and the sealing performance between the box body 1 and the cover body 2 is ensured;

when needs are opened lid 2, reverse rotation threaded rod 20, make it drive sealed piece 19 and slide in gas transmission groove 18, gas in the gasbag 17 will be sealed inhales gas transmission groove 18 in through gas-supply pipe 21, make sealed gasbag 17 shrink no longer offset with the inside wall of box body 1, pulling L template 15, make it follow roll-off in draw-in groove 13, downwards rotate reset plate 12, can make gear 10 rotate, and then can be under its meshing effect, make rack plate 11 upwards slide, receive line work to stay cord 8, and then can be with 6 stimulations of trapezoidal piece to U template 5 in, be convenient for remove box body 1 and lid 2 separation from first spacing inslot 3 with U template 5.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides an explosion-proof switch box for turbo generator, includes box body (1) and lid (2), its characterized in that, the upper end symmetry of box body (1) is equipped with a plurality of stop gear, the bottom fixedly connected with of lid (2) a plurality of fixed establishment that extend to in the stop gear rather than relative respectively, be equipped with canceling release mechanical system on lid (2), it is a plurality of fixed establishment's free end all with canceling release mechanical system's bottom fixed connection, sealed gasbag (17) that the inside wall of the bottom fixedly connected with box body (1) of lid (2) offseted, be equipped with the gas transmission mechanism who communicates each other with sealed gasbag (17) on lid (2).

2. The explosion-proof switch box for the steam turbine generator as claimed in claim 1, wherein the limiting mechanism comprises a first limiting groove (3) formed in the upper end of the box body (1), and a second limiting groove (4) is formed in the inner side wall of the first limiting groove (3).

3. The explosion-proof switch box for the steam turbine generator according to claim 2, characterized in that the fixing mechanism comprises a U-shaped plate (5) fixedly connected to the bottom of the cover body (2), the U-shaped plate (5) extends into the first limiting groove (3), a trapezoidal block (6) extending into the second limiting groove (4) is slidably connected to the U-shaped plate (5), a plurality of first springs (7) are connected between the trapezoidal block (6) and the inner side wall of the U-shaped plate (5), and a pull rope (8) is fixedly connected to the side wall of the trapezoidal block (6).

4. The explosion-proof switch box for the steam turbine generator of claim 3, characterized in that, canceling release mechanical system is including offering mounting groove (9) in lid (2) upper end, the inside wall of mounting groove (9) rotates and is connected with gear (10), sliding connection has rack plate (11) with gear (10) engaged with in mounting groove (9), and is a plurality of the free end of stay cord (8) all runs through the lateral wall of U template (5), the lateral wall of mounting groove (9) in proper order and with the bottom fixed connection of rack plate (11), the preceding lateral wall fixedly connected with of gear (10) rather than coaxial pivoted resets board (12), draw-in groove (13) have been seted up to the inside wall of mounting groove (9), the lateral wall of resetting board (12) is equipped with the positioning mechanism who extends to in draw-in groove (13).

5. The explosion-proof switch box for the steam turbine generator according to claim 4, characterized in that the positioning mechanism comprises a positioning groove (14) formed in the side wall of the reset plate (12), an L-shaped plate (15) extending into the clamping groove (13) is slidably connected in the positioning groove (14), and a plurality of second springs (16) are connected between the L-shaped plate (15) and the inner side wall of the positioning groove (14).

6. The explosion-proof switch box for the steam turbine generator as claimed in claim 1, wherein the gas transmission mechanism comprises a gas transmission groove (18) formed in the cover body (2), a sealing block (19) is connected in the gas transmission groove (18) in a sealing and sliding manner, a threaded rod (20) is connected to the side wall of the sealing block (19) in a rotating manner, the threaded rod (20) penetrates through the inner side wall of the gas transmission groove (18) and is in threaded connection with the inner side wall, a gas transmission pipe (21) is arranged in the gas transmission groove (18) in a sealing and penetrating manner, and the gas transmission pipe (21) penetrates through the side wall of the sealing air bag (17) in a sealing manner and is communicated with the gas transmission groove.