CN219998754U

CN219998754U - Electric energy metering box protection device

Info

Publication number: CN219998754U
Application number: CN202321025804.8U
Authority: CN
Inventors: 任仕明
Original assignee: Jiangsu Pengtai Electric Co ltd
Current assignee: Jiangsu Pengtai Electric Co ltd
Priority date: 2023-05-04
Filing date: 2023-05-04
Publication date: 2023-11-10
Anticipated expiration: 2033-05-04

Abstract

The utility model discloses a protection device of an electric energy metering box, which comprises: main part module and protection module, the box is used for installing electrical equipment, and play the guard action to electrical equipment, the sealing door is used for opening and closing of control box, open the top and the bottom symmetry of box has the air vent, be used for in the box air and outside air to circulate the exchange, make things convenient for the electrical equipment of box inner chamber to dispel the heat, install the filter screen on the inner wall of air vent, be used for avoiding external dust impurity etc. to enter into the box inner chamber, the ejector is fixed on the inner wall of barrel hole, and be located the top of filter screen, the ejector is including being annular array setting and tip fixing the branch on the air vent inner wall and fixing the ejector pin on the branch tip, branch is used for fixing the ejector pin, keep the stability of ejector pin, this electric energy metering box protection device can keep apart the fire at electric energy metering box initial stage.

Description

Electric energy metering box protection device

Technical Field

The utility model relates to the technical field of electric energy metering boxes, in particular to an electric energy metering box protection device.

Background

The electric energy metering box is a metering device which is necessary for metering electric energy, is widely applied to various places such as families, factories and enterprises, and can see the figure of the electric energy metering box as long as the electric energy metering box is used in places, and an electric energy meter is arranged in the electric energy metering box to record the electric energy consumption of a user.

The following disadvantages mainly exist in the use process of the electric energy metering box: short circuit fire easily occurs in electrical equipment in the electric energy metering box, however, most of the existing electric energy metering boxes do not have fire protection functions, and the existing electric energy metering boxes are mainly characterized by no isolation arrangement, so that the interior of the box body cannot be isolated from the outside air when the fire occurs, flame in the box body is enlarged under the combustion supporting of the outside air, meanwhile, effective fire extinguishing devices are lacked, and an improvement space exists.

Disclosure of Invention

The present utility model aims to solve one of the technical problems existing in the prior art or related technologies.

The technical scheme adopted by the utility model is as follows: an electric energy meter box protection device, comprising: the main body module comprises a box body, a sealing door hinged on the box body and a plurality of ejection pieces arranged on the box body.

The protection module comprises a sealing plate symmetrically arranged at the top and the bottom of the box body, a central column fixed on the sealing plate and extending into the inner cavity of the box body, hot melting elements with two ends respectively attached to the central columns at two sides, T-shaped rods symmetrically fixed on the sealing plate and extending into the inner cavity of the box body, first springs sleeved on the T-shaped rods, a shell fixed on the sealing plate and a sealing piece symmetrically arranged in the inner cavity of the shell.

And the inner cavity of the shell is filled with high-pressure inert gas.

The present utility model may be further configured in a preferred example to: the top and the bottom of box symmetry are opened there is the air vent, install the filter screen on the inner wall of air vent, ejecting piece is fixed on the inner wall in barrel hole.

The present utility model may be further configured in a preferred example to: the ejection piece comprises a supporting rod which is arranged in an annular array and the end part of which is fixed on the inner wall of the vent hole, and an ejector rod which is fixed on the end part of the supporting rod.

The present utility model may be further configured in a preferred example to: the top of the sealing plate is provided with a through hole, and the position of the through hole corresponds to the position of the ejection piece.

The present utility model may be further configured in a preferred example to: one end of the first spring is fixed at the bottom end of the T-shaped rod, and the other end of the first spring is fixed on the inner top wall of the box body.

The present utility model may be further configured in a preferred example to: the sealing piece comprises a second spring fixed on the inner top wall of the shell and a rubber plate fixed at the bottom end of the second spring, and the rubber plate is tightly attached to the through hole.

The present utility model may be further configured in a preferred example to: an air tap is arranged on the outer side face of the shell.

By adopting the technical scheme, the beneficial effects obtained by the utility model are as follows:

1. according to the utility model, the protection module is arranged, the sealing plate, the central column, the hot melting element, the T-shaped rod and the first spring are arranged, when short circuit and fire occur in electrical equipment in the box body, the hot melting element bursts after reaching the working temperature, at the moment, the T-shaped rod is driven to move towards the inner cavity of the box body under the action of the first spring, and the T-shaped rod moves to drive the sealing plate to move, so that the sealing plate is tightly attached to the outer side surface of the box body, the vent hole of the box body is blocked, and the outside air is prevented from flowing into combustion supporting flame in the box body.

2. According to the utility model, the shell is arranged at the top end of the sealing plate, the inner cavity of the shell is filled with high-pressure inert gas, meanwhile, the sealing piece is arranged on the inner wall of the shell, the ejection piece is arranged on the inner wall of the vent hole of the box body, when the sealing plate is tightly attached to the outer side surface of the box body, the ejection piece ejects the sealing piece, at the moment, the high-pressure inert gas in the inner cavity of the shell is introduced into the inner cavity of the box body, the concentration of oxygen in the inner cavity of the box body is reduced, so that the concentration of oxygen is lower than the minimum concentration required by combustion, and the combustion supporting links in a combustion triangle are damaged, so that flame in the box body is extinguished, and further expansion of fire is avoided.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the bottom view of the present utility model;

FIG. 3 is a schematic cross-sectional view of the present utility model;

FIG. 4 is a schematic cross-sectional view of a shielding device according to the present utility model;

fig. 5 is a schematic structural diagram of a main module according to the present utility model.

Reference numerals:

100. a main body module; 110. a case; 111. a vent hole; 112. a filter screen; 120. sealing the door; 130. an ejector; 131. a support rod; 132. a push rod;

200. a protection module; 210. a sealing plate; 211. a through hole; 220. a center column; 230. a hot melt element; 240. a T-shaped rod; 250. a first spring; 260. a housing; 261. an air tap; 270. a closure; 271. a second spring; 272. a rubber plate.

Detailed Description

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

Some embodiments of the utility model are described below with reference to the accompanying drawings,

example 1:

referring to fig. 1 to 5, the present embodiment provides an electric energy meter box protection device, including: the body module 100 and the shielding module 200.

The main body module 100 includes a case 110, a sealing door 120 hinge-mounted on the case 110, and a plurality of liftout members 130 hinge-mounted on the case 110.

The box 110 is used for installing electrical equipment and protecting the electrical equipment, the sealing door 120 is used for controlling the opening and closing of the box 110, the top end and the bottom end of the box 110 are symmetrically provided with the vent holes 111, the air in the box 110 and the outside air are used for circulation and exchange, the electrical equipment in the box 110 is convenient to dissipate heat, the inner wall of the vent holes 111 is provided with the filter screen 112, and the outside dust and impurities are prevented from entering the box 110.

The ejector 130 is fixed on the inner wall of the cylinder hole and is located above the filter screen 112, the ejector 130 comprises a supporting rod 131 arranged in an annular array and the end part of which is fixed on the inner wall of the ventilation hole 111, and a supporting rod 132 fixed on the end part of the supporting rod 131, and the supporting rod 131 is used for fixing the supporting rod 132 to keep the stability of the supporting rod 132.

The protection module 200 is used for protecting the box 110 and other electrical devices when the electrical devices in the box 110 are on fire, and comprises a sealing plate 210 symmetrically arranged at the top and the bottom of the box 110, a central column 220 fixed on the sealing plate 210 and extending into the cavity of the box 110, a hot melt element 230 with two ends respectively attached to the central columns 220 at two sides, a T-shaped rod 240 symmetrically fixed on the sealing plate 210 and extending into the cavity of the box 110, a first spring 250 sleeved on the T-shaped rod 240, a shell 260 fixed on the sealing plate 210 and a sealing piece 270 symmetrically arranged in the cavity of the shell 260.

The sealing plate 210 is used for sealing the vent holes 111 at the top and bottom of the box 110, blocking the vent holes 111 of the box 110, avoiding external air from flowing into the box 110 to assist combustion flame, the central column 220 and the hot-melt element 230 cooperate to jack up the sealing plate 210, ensuring that the sealing plate 210 does not influence the air circulation in the inner cavity of the box 110 when the box 110 normally operates, and the hot-melt element 230 melts and bursts when being heated to reach the working stability, thereby losing the limit function on the central column 220, and the sealing plate 210 can move at the moment.

The T-shaped rod 240 stretches into the inner cavity of the box body 110, one end of the first spring 250 is fixed at the bottom end of the T-shaped rod 240, and the other end of the first spring is fixed on the inner top wall of the box body 110, and is used for driving the T-shaped rod 240 to move towards the inner cavity of the box body 110 when the sealing plate 210 can move, and the T-shaped rod 240 moves to drive the sealing plate 210 to move, so that the sealing plate 210 is tightly attached to the outer side surface of the box body 110, and the vent hole 111 of the box body 110 is blocked.

The inner cavity of the shell 260 is filled with high-pressure inert gas, and is used for being filled into the inner cavity of the box 110 when the inner cavity of the box 110 is on fire, so that the concentration of oxygen in the inner cavity of the box 110 is reduced, the concentration of oxygen is lower than the minimum concentration required by combustion, and the combustion supporting links in the combustion triangle are damaged, so that the flame in the box 110 is extinguished.

Further, an air tap 261 is disposed on the outer side of the housing 260, so as to facilitate filling the inner cavity of the housing 260 with high-pressure air.

The top end of the sealing plate 210 is provided with a through hole 211, the position of the through hole 211 corresponds to the position of the ejection member 130, and the high-pressure inert gas used in the housing 260 enters the inner cavity of the housing 110 through the vent hole 111 of the housing 110.

The sealing member 270 is used for sealing the through hole 211 when the box 110 is in normal operation, the sealing member 270 comprises a second spring 271 fixed on the inner top wall of the shell 260 and a rubber plate 272 fixed on the bottom end of the second spring 271, the second spring 271 is used for keeping the rubber plate 272 closely attached to the through hole 211, and the rubber plate 272 is used for ensuring the sealing of the through hole 211 and avoiding the outflow of high-pressure inert gas in the shell 260.

The working principle and the using flow of the utility model are as follows: when the electric device in the box 110 is in short circuit and fires, the hot melting element 230 bursts after reaching the working temperature, at this time, under the action of the first spring 250, the T-shaped rod 240 is driven to move towards the inner cavity of the box 110, the T-shaped rod 240 is driven to move to drive the sealing plate 210 to move, the sealing plate 210 is tightly attached to the outer side surface of the box 110, the vent hole 111 of the box 110 is blocked, the outside air is prevented from flowing into the flame in the box 110, meanwhile, when the sealing plate 210 is tightly attached to the outer side surface of the box 110, the ejector 130 ejects the sealing element 270, at this time, the high-pressure inert gas in the inner cavity of the shell 260 is introduced into the inner cavity of the box 110, the concentration of oxygen in the inner cavity of the box 110 is reduced, the concentration of oxygen is lower than the minimum concentration required by combustion, and the combustion-supporting link in the triangle is destroyed, so that the flame in the box 110 is extinguished.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. An electric energy meter box protection device, comprising: the protection device comprises a main body module (100) and a protection module (200), and is characterized in that the main body module (100) comprises a box body (110), a sealing door (120) hinged on the box body (110) and a plurality of ejection pieces (130) arranged on the box body (110);

the protection module (200) comprises a sealing plate (210) symmetrically arranged at the top and the bottom of the box body (110), a central column (220) fixed on the sealing plate (210) and extending into the inner cavity of the box body (110), hot melting elements (230) with two ends respectively attached to the central columns (220) at two sides, a T-shaped rod (240) symmetrically fixed on the sealing plate (210) and extending into the inner cavity of the box body (110), a first spring (250) sleeved on the T-shaped rod (240), a shell (260) fixed on the sealing plate (210) and a sealing piece (270) symmetrically arranged in the inner cavity of the shell (260);

the inner cavity of the shell (260) is filled with high-pressure inert gas.

2. The electric energy metering box protection device according to claim 1, wherein the top end and the bottom end of the box body (110) are symmetrically provided with vent holes (111), a filter screen (112) is installed on the inner wall of the vent holes (111), and the ejection piece (130) is fixed on the inner wall of the cylinder body hole.

3. An electric energy meter box protection device according to claim 2, characterized in that the ejector member (130) comprises a support rod (131) arranged in a ring-shaped array and having an end fixed to an inner wall of the vent hole (111), and an ejector rod (132) fixed to an end of the support rod (131).

4. The electric energy meter box protection device according to claim 1, wherein a through hole (211) is formed at a top end of the sealing plate (210), and the position of the through hole (211) corresponds to the position of the ejector (130).

5. An electric energy meter box protection device according to claim 1, characterized in that the first spring (250) is fixed at one end to the bottom end of the T-shaped rod (240) and at the other end to the inner top wall of the box body (110).

6. The electric energy meter box protection device according to claim 4, wherein the closing member (270) comprises a second spring (271) fixed to an inner top wall of the housing (260) and a rubber plate (272) fixed to a bottom end of the second spring (271), the rubber plate (272) being abutted against the through hole (211).

7. An electric energy meter box protection as claimed in claim 1, characterized in that the outer side of the housing (260) is provided with an air tap (261).