Safe fireproof electric energy metering box used in dry environment

Abstract

The invention relates to a safe fireproof electric energy metering box used in a dry environment, the safe fireproof electric energy metering box comprises a box body, an electric energy meter, a fire extinguishing structure and a switch assembly, the electric energy meter is installed in the box body, and the fire extinguishing structure is installed at the top of the box body; the fire extinguishing structure comprises a fire extinguishing tank, a fire extinguishing nozzle and a switch valve; the fire extinguishing tank is arranged behind the top of the box body; the fire extinguishing nozzle is connected with the fire extinguishing tank through a pipeline and a switch valve; when the temperature rises, the memory alloy spring extends and pushes the movable plate to move towards the right supporting plate, the connecting shaft moves into the semicircular groove, the left end of the movable plate is separated from the left supporting plate, the movable plate rotates with the connecting shaft as the center shaft, and the pressing plate presses downwards to open a switch valve on the fire extinguishing tank behind the pressing plate when rotating. According to the fireproof electric energy metering box, fire can be extinguished in time, and losses caused by fire disasters are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of electric energy metering boxes, in particular to a safe and fireproof electric energy metering box used in a dry environment. Background Art

[0002] The energy meter box is a special box used to install energy meters and metering equipment. It is usually made of metal or high-strength insulating materials. The internal temperature of the energy meter box may be too high due to the following reasons: (1) Short circuit: If an electrical short circuit occurs inside the energy meter box, a large amount of heat may be generated, causing the temperature to rise, which may cause a fire. (2) Overload: Long-term overload operation may cause wires or equipment to overheat. (3) Equipment failure: If the energy meter or other electrical components fail, it may also cause overheating.

[0003] However, the existing electricity meter boxes are generally installed in the corridors and do not have fire prevention functions. When the temperature is high in summer, the ventilation performance of the corridors is poor, and the heat in the electricity meter box cannot be dissipated in time, which may cause a fire. In addition, in a dry environment, the high temperature in the electricity meter box is also very likely to cause a fire. The fire extinguishing method used in the existing technology is to first alarm through an alarm, and then extinguish the fire manually after receiving the alarm. However, it takes a certain amount of time from the alarm to the manual fire extinguishing, and during this time the fire may spread rapidly, causing great property losses. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects existing in the prior art and to provide a safe and fireproof electric energy metering box for use in a dry environment, which can effectively solve the above-mentioned problems existing in the prior art.

[0005] A safe fireproof electric energy metering box for use in a dry environment, characterized in that it comprises a box body, an electric energy meter, a fire extinguishing structure and a switch assembly, wherein the electric energy meter is installed in the box body, and the fire extinguishing structure is installed on the top of the box body; the fire extinguishing structure comprises a fire extinguishing tank, a fire extinguishing nozzle and a switch valve; the fire extinguishing tank is arranged at the rear of the top of the box body, and the fire extinguishing nozzle is connected to the fire extinguishing tank through a pipeline and a switch valve;

[0006] The switch assembly includes a movable plate, a pressure plate, and a memory alloy spring. A left support plate and a right support plate are symmetrically installed on the side wall of the upper end of the box body. One end of the memory alloy spring is fixed on the left end wall of the box body and is located above the left support plate. One end of the movable plate is movably placed on the left support plate and contacts with the other end of the memory alloy spring. Connecting shafts are symmetrically provided on the front and rear sides of the other end of the movable plate. Support blocks are provided on the front and rear ends of the right support plate close to the left support plate. A semicircular groove is formed at the connection between the support block and the right support plate. The connecting shaft is movably placed on the support block. When the connecting shaft moves into the semicircular groove, the left end of the movable plate detaches from the left support plate and rotates downward. The pressure plate is installed on the movable plate. When the pressure plate rotates around the connecting shaft, it can press down the switch valve to open the fire extinguisher.

[0007] When the temperature rises, the memory alloy spring stretches and pushes the movable plate to move toward the right support plate, the connecting shaft moves into the semicircular groove, the left end of the movable plate detaches from the left support plate, and the movable plate rotates around the connecting shaft as the center axis. When the pressure plate rotates, the switch valve on the fire extinguisher behind it is opened.

[0008] Furthermore, a fire extinguishing box for installing a fire extinguishing tank is provided at the rear end of the top of the box body. The fire extinguishing tank is connected to the fire extinguishing nozzle through a pipeline. A switch valve is installed at the connection between the outlet end of the fire extinguishing tank and the pipeline. A switch slot is provided at the connection between the box body and the fire extinguishing box body. The switch valve passes through the switch slot and is arranged in the box body and is located in the circumferential direction of the rotation of the pressure plate.

[0009] Furthermore, the fire extinguishing nozzle is arranged toward the direction of the electric energy meter.

[0010] Furthermore, the switch valve is a rod-shaped structure.

[0011] Furthermore, the support block is a transverse L-shaped structure.

[0012] Furthermore, an exhaust fan is installed on the rear end wall of the lower inner part of the box body; and heat dissipation holes are opened on the left and right side walls of the box body.

[0013] Furthermore, a weight block is installed on the top of one end of the movable plate close to the left supporting plate.

[0014] The advantages and beneficial effects of the present invention are:

[0015] When the temperature rises, the memory alloy spring stretches and pushes the movable plate to move toward the right supporting plate, the connecting shaft moves into the semicircular groove, the left end of the movable plate is separated from the left supporting plate, and the movable plate rotates with the connecting shaft as the central axis. When the pressing plate rotates, it presses down to open the switch valve on the fire extinguishing tank behind it. The fireproof electric energy metering box of the present invention can be used to extinguish fires in time and reduce the losses caused by fires. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a safety and fireproof electric energy metering box for use in a dry environment provided by the present invention;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure from another angle;

[0018] Figure 3 It is a schematic diagram of another state structure of a safety fireproof electric energy meter box used in a dry environment according to the present invention;

[0019] Figure 4 for Figure 3 A partial enlarged view of middle A;

[0020] Figure 5 for Figure 3 Implementation status diagram;

[0021] Figure 6 for Figure 5 A partial enlarged view of B in the middle;

[0022] Description of reference numerals:

[0023] Box body 1, electric energy meter 2, fire extinguisher tank 3, fire extinguisher nozzle 4, switch valve 5, pipeline 6, movable plate 7, pressure plate 8, memory alloy spring 9, left support plate 10, right support plate 11, connecting shaft 12, support block 13, semicircular groove 14, switch groove 15, weight block 16. DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] like Figure 1-Figure 6As shown, a safe fireproof electric energy metering box for use in a dry environment comprises a box body 1, an electric energy meter 2, a fire extinguishing structure and a switch assembly, wherein the electric energy meter 2 is installed in the box body 1, and the fire extinguishing structure is installed on the top of the box body 1; the fire extinguishing structure comprises a fire extinguishing tank 3, a fire extinguishing nozzle 4 and a switch valve 5; the fire extinguishing tank 3 is arranged at the rear of the top of the box body 1, and the fire extinguishing nozzle 4 is connected to the fire extinguishing tank 3 through a pipe 6 and a switch valve 5;

[0027] The switch assembly includes a movable plate 7, a pressure plate 8, and a memory alloy spring 9. A left support plate 10 and a right support plate 11 are symmetrically installed on the upper side wall of the box body 1. One end of the memory alloy spring 9 is fixed on the left end wall of the box body 1 and is located above the left support plate 10. One end of the movable plate 7 is movably placed on the left support plate 10 and contacts with the other end of the memory alloy spring 9. A connecting shaft 12 is symmetrically provided on the front and rear sides of the other end of the movable plate 7. A supporting block 13 is provided on the front and rear ends of the right support plate 11 close to the left support plate 10. A semicircular groove 14 is formed at the connection between the supporting block 13 and the right support plate 11. The connecting shaft 12 is movably placed on the supporting block 13. When the connecting shaft 12 moves into the semicircular groove 14, the left end of the movable plate 7 is separated from the left support plate 10 and rotates downward. The pressure plate 8 is installed on the movable plate 7. When the pressure plate 8 rotates around the connecting shaft 12, the switch valve 5 can be pressed down to open the fire extinguishing tank 3.

[0028] In the above technical solution, when the temperature rises, the memory alloy spring 9 stretches and pushes the movable plate 7 to move toward the right support plate 11, the connecting shaft 12 moves into the semicircular groove 14, the left end of the movable plate 7 detaches from the left support plate 10, and the movable plate 7 rotates with the connecting shaft 12 as the center axis. When the pressure plate 8 rotates, the switch valve 5 on the fire extinguishing tank 3 behind it is opened.

[0029] As a preferred embodiment of the above technical solution, a fire extinguishing box 14 for installing a fire extinguishing tank 3 is provided at the top rear end of the box 1, and the fire extinguishing tank 3 is connected to the fire extinguishing nozzle 4 through a pipe 6. A switch valve 5 is installed at the connection between the outlet end of the fire extinguishing tank 3 and the pipe 6. A switch slot 15 is provided at the connection between the box 1 and the fire extinguishing box 14. The switch valve 5 penetrates the switch slot 15 and is arranged in the box 1, and is located in the circumferential direction of the rotation of the pressing plate 8. Preferably, the pressing plate is vertically installed at the top of the right rear end of the movable plate.

[0030] As a preferred embodiment of the above technical solution, the fire extinguishing nozzle 4 is arranged toward the electric energy meter 2. The fire extinguishing tank can use different fire extinguishing media according to needs, such as water, foam fire extinguishing agent or dry powder fire extinguishing agent.

[0031] As a preferred embodiment of the above technical solution, the switch valve 5 is a rod-shaped structure.

[0032] As a preferred embodiment of the above technical solution, the support block 13 is a transverse L-shaped structure.

[0033] As a preferred embodiment of the above technical solution, an exhaust fan is installed on the rear end wall at the lower inner side of the box body 1; and heat dissipation holes are opened on the left and right side walls of the box body 1.

[0034] As a preferred embodiment of the above technical solution, a weight block 16 is installed on the top of one end of the movable plate 7 close to the left support plate. The setting of the weight block can increase the weight of the movable plate close to one end of the left support plate.

[0035] The working principle of the present invention is as follows:

[0036] When the temperature rises, the memory alloy spring 9 stretches and pushes the movable plate 7 to move toward the right support plate 11, the connecting shaft 12 moves into the semicircular groove 14, the left end of the movable plate 7 detaches from the left support plate 10, and the movable plate 7 rotates around the connecting shaft 12 as the center axis. When the pressure plate 8 rotates, it presses down to open the switch valve 5 on the fire extinguishing tank 3 behind it.

[0037] It should be emphasized that the embodiments of the present invention are illustrative rather than restrictive. Therefore, the present invention includes but is not limited to the embodiments described in the specific implementation modes. Any other implementation modes derived by those skilled in the art based on the technical solutions of the present invention also fall within the scope of protection of the present invention.

Claims

1. A safe and fireproof electric energy metering box for use in a dry environment, characterized by: The invention comprises a box (1), an electric energy meter (2), a fire extinguishing structure and a switch assembly, wherein the electric energy meter (2) is installed in the box (1), and the fire extinguishing structure is installed on the top of the box (1); the fire extinguishing structure comprises a fire extinguishing tank (3), a fire extinguishing nozzle (4) and a switch valve (5); the fire extinguishing tank (3) is arranged at the rear of the top of the box (1), and the fire extinguishing nozzle (4) is connected to the fire extinguishing tank (3) through a pipeline (6) and a switch valve (5); The switch assembly comprises a movable plate (7), a pressure plate (8), and a memory alloy spring (9); a left support plate (10) and a right support plate (11) are symmetrically mounted on the upper side wall of the box body (1); one end of the memory alloy spring (9) is fixed to the left end wall of the box body (1) and is located above the left support plate (10); one end of the movable plate (7) is movably placed on the left support plate (10) and is in contact with the other end of the memory alloy spring (9); a connecting shaft (12) is symmetrically arranged on the front and rear sides of the other end of the movable plate (7); the right support plate (11) is close to the left support plate (10). A support block (13) is provided at the front and rear ends of one side of the support plate (10); a semicircular groove (14) is formed at the connection between the support block (13) and the right support plate (11); the connecting shaft (12) is movably placed on the support block (13); and when the connecting shaft (12) moves into the semicircular groove (14), the left end of the movable plate (7) is separated from the left support plate (10) and rotates downward; the pressing plate (8) is installed on the movable plate (7); when the pressing plate (8) rotates around the connecting shaft (12) as the center, the switch valve (5) can be pressed down to open the fire extinguishing tank (3).

2. A safe and fireproof electric energy meter box for use in a dry environment according to claim 1, characterized in that: A fire extinguishing box (14) for mounting a fire extinguishing tank (3) is provided at the top rear end of the box (1); the fire extinguishing tank (3) is connected to the fire extinguishing nozzle (4) via a pipe (6); a switch valve (5) is installed at the connection between the outlet end of the fire extinguishing tank (3) and the pipe (6); a switch slot (15) is provided at the connection between the box (1) and the fire extinguishing box (14); the switch valve (5) penetrates the switch slot (15) and is arranged in the box (1) and is located in the circumferential direction of the rotation of the pressure plate (8).

3. A safe and fireproof electric energy meter box for use in a dry environment according to claim 2, characterized in that: The fire extinguishing nozzle (4) is arranged towards the direction of the electric energy meter (2).

4. A safe and fireproof electric energy meter box for use in a dry environment according to claim 3, characterized in that: The switch valve (5) is a rod-shaped structure.

5. The safe and fireproof electric energy meter box for use in a dry environment according to claim 1, characterized in that: The support block (13) is a transverse L-shaped structure.

6. The safe and fireproof electric energy meter box for use in a dry environment according to claim 1, characterized in that: An exhaust fan is installed on the rear end wall at the lower inner side of the box body (1); and heat dissipation holes are provided on the left and right side walls of the box body (1).

7. The fireproof and safe electric energy meter box for use in a dry environment according to claim 1, characterized in that: A weight block (16) is installed on the top of one end of the movable plate (7) close to the left supporting plate.

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