Electric power protection cabinet

Abstract

The utility model discloses an electric power protection cabinet, which relates to the technical field of electric power cabinets and comprises a cabinet body and an opening and closing door, ventilation cavities are arranged on two sides of the bottom of the cabinet body, mounting walls are arranged on opposite sides of the two ventilation cavities, ventilation openings are arranged at the bottoms of the mounting walls, rotating shafts are arranged on the mounting walls above the ventilation openings, and rotating plates are fixedly arranged below the rotating shafts and at the ventilation openings. A sealing baffle is fixedly arranged above the rotating shaft, an arc-shaped clamping seat is fixedly arranged at the upper end in the cabinet body, a dry powder bottle is detachably installed in the arc-shaped clamping seat, a horn-shaped spray head with a downward opening is arranged at the bottom of the dry powder bottle, an electric control valve is arranged in the spray head, the electric control valve is connected with a thermistor, and a switch of the electric control valve is connected with the thermistor. The power cabinet is simple in structure, can automatically spray dry powder to extinguish fire when a fire occurs in the power cabinet, closes the ventilation opening of the power cabinet when the dry powder is sprayed out to seal the interior of the power cabinet so as to achieve a double-layer fire extinguishing effect, and is high in practicability and suitable for popularization.

Description

Technical Field

[0001] The utility model belongs to the technical field of power cabinets, and in particular relates to a power protection cabinet. Background Art

[0002] Power cabinets are a common piece of electrical infrastructure, housing numerous electrical components. During operation, these cabinets require regular inspection and maintenance of the internal electrical components to ensure proper power supply. While operating, these cabinets require internal heat dissipation to prevent overheating, short circuits, and other fires. Existing power cabinets often utilize ventilation holes or fans for heat dissipation, but these methods prevent timely extinguishing of fires within the cabinet, posing a potential safety hazard. Utility Model Content

[0003] The purpose of the utility model is to provide an electric power protection cabinet with a simple structure. When a fire occurs in the power cabinet, dry powder can be automatically sprayed to extinguish the fire. When the dry powder is sprayed, the ventilation holes of the power cabinet are closed, and the interior of the power cabinet is sealed to achieve a double-layer fire extinguishing effect. The utility model is highly practical and suitable for promotion.

[0004] The utility model provides the following technical solution: an electric power protection cabinet, comprising a cabinet body and an opening and closing door, ventilation cavities are provided on both sides of the bottom of the cabinet body, opposite sides of the two ventilation cavities are mounting walls, a ventilation opening is provided at the bottom of the mounting wall, a rotating shaft is provided on the mounting wall above the ventilation opening, a rotating plate is fixedly provided below the rotating shaft at the ventilation opening, and a blocking plate is fixedly provided above the rotating shaft;

[0005] An arc-shaped holder is fixedly provided at the upper end of the cabinet body, a dry powder bottle is detachably mounted in the arc-shaped holder, a trumpet-shaped nozzle opening downward is provided at the bottom of the dry powder bottle, an electric control valve is provided in the nozzle, the electric control valve is connected to a thermistor, and the switch of the electric control valve is connected to the thermistor.

[0006] Preferably, the opening and closing door is connected to the cabinet body through a rotating shaft, and when the opening and closing door is closed, it is sealed with the front opening of the cabinet body and is sealed with the front end of the ventilation cavity. Through ventilation strips are provided on both sides of the ventilation cavity. The length of the rotating plate is sufficient to rotate half a circle toward the ventilation cavity, and when it is located at the ventilation port, the ventilation port has a ventilation gap.

[0007] Preferably, a sealed groove is provided at the edge of the vent. When the rotating plate is located at the vent, the sealing plate is attached to the mounting wall, and the shape of the sealing plate matches the vent. A sealing gasket is provided at the edge of the sealing plate, and the shape of the sealing gasket matches the sealed groove.

[0008] Preferably, the pressure in the dry powder bottle satisfies that when the dry powder airflow is ejected, the airflow can push the rotating plate when it flows out from the vent.

[0009] The beneficial effects of the utility model are as follows: the structure is simple, and when a fire occurs in the power cabinet, dry powder can be automatically sprayed to extinguish the fire. When the dry powder is sprayed, the ventilation opening of the power cabinet is closed, and the interior of the power cabinet is sealed to achieve a double-layer fire extinguishing effect. The utility model has strong practicality, as follows:

[0010] The utility model is provided with a dry powder bottle. During normal use, the vents at the ventilation cavity and the ventilation strips form a heat dissipation channel. When the temperature inside the cabinet is too high, the resistance of the thermistor becomes low, the switch of the electric control valve is turned on, and the nozzle of the dry powder bottle sprays dry powder downward to spray dry powder on the instruments installed below to extinguish fire or prevent fire. When the nozzle sprays dry powder, it forms a strong airflow, which is sprayed from the vents. The impact force formed by the airflow acts on the rotating plate, causing the rotating plate to rotate toward the ventilation cavity. The sealing plate rotates with the rotating shaft. When it reaches the vent, the closing pad on it is pressed on the closed groove, which seals the vent and forms a closed space in the cabinet to prevent fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 It is an overall schematic diagram of the utility model;

[0013] Figure 2 It is a cross-sectional view of the utility model;

[0014] Figure 3 It is an enlarged view of point A of the present utility model;

[0015] The markings in the figure are: 1. Cabinet; 2. Opening and closing door; 3. Ventilation cavity; 4. Mounting wall; 5. Sealing plate; 6. Ventilation port; 7. Ventilation strip; 8. Thermistor; 9. Dry powder bottle; 10. Nozzle; 11. Arc-shaped holder; 12. Electric control valve; 13. Rotating plate; 14. Rotating axis; 15. Sealed groove; 16. Sealing gasket. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0017] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0018] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0019] The structural features of the present invention are now described in detail with reference to the accompanying drawings.

[0020] See also Figure 1-3 , an electric power protection cabinet includes a cabinet body 1 and an opening and closing door 2. Ventilation cavities 3 are provided on both sides of the bottom of the cabinet body 1. The opposite side of the two ventilation cavities 3 is a mounting wall 4. Ventilation openings 6 are provided at the bottom of the mounting wall 4. A rotating shaft 14 is provided on the mounting wall 4 above the ventilating opening 6. A rotating plate 13 is fixedly provided at the ventilating opening 6 below the rotating shaft 14. A sealing plate 5 is fixed above the rotating shaft 14. When the rotating plate 13 rotates, it drives the sealing plate 5 to rotate. A sealed groove 15 is provided at the edge of the ventilating opening 6. When the rotating plate 13 is located at the ventilating opening 6, the sealing plate 5 is attached to the mounting wall 4. The shape of the sealing plate 5 matches the ventilating opening 6. A closing gasket 16 is provided at the edge of the sealing plate 5. The shape of the closing gasket 16 matches the closed groove 15. When the sealing plate 5 is located at the ventilating opening 6, the closing gasket 16 presses on the closed groove 15 to close the ventilating opening 6.

[0021] See also Figure 1 、 3 The opening and closing door 2 is connected to the cabinet body 1 through a rotating shaft, and when the opening and closing door 2 is closed, it is sealed with the front opening of the cabinet body 1, and is sealed with the front end of the ventilation cavity 3. There are through ventilation strips 7 on both sides of the ventilation cavity 3. When the rotating plate 13 is located at the vent 6, the vent 6 has a ventilation gap, and an air flow channel is formed at the ventilation cavity 3. The length of the rotating plate 13 is sufficient to rotate half a circle in the direction of the ventilation cavity 3. When the rotating plate 13 rotates to above the vent 6, the sealing plate 5 is located at the vent 6.

[0022] See also Figure 1-2An arc-shaped holder 11 is fixedly provided at the upper end of the cabinet 1, and a dry powder bottle 9 is detachably installed in the arc-shaped holder 11. The fire extinguishing mechanism can be selectively installed. A trumpet-shaped nozzle 10 with a downward opening is provided at the bottom of the dry powder bottle 9. An electric control valve 12 is provided in the nozzle 10, and the electric control valve 12 is connected to the thermistor 8. The switch of the electric control valve 12 is connected to the thermistor 8. When the temperature in the cabinet 1 is too high, the resistance of the thermistor 8 becomes low, and the switch of the electric control valve 12 is opened. When the pressure in the dry powder bottle 9 meets the dry powder airflow, the airflow can push the rotating plate 13 when it gushes out from the vent 6, so that the rotating plate 13 can be selected to drive the sealing plate 5 to close the inside of the cabinet 1.

[0023] The electric power protection cabinet of the present invention has a simple structure. When a fire occurs in the electric power cabinet, it can automatically spray dry powder to extinguish the fire. When the dry powder is sprayed, the ventilation port of the electric power cabinet is closed, and the interior of the electric power cabinet is sealed to achieve a double-layer fire extinguishing effect. The utility model is highly practical and suitable for promotion.

[0024] When using it specifically, refer to Figure 1-3 During normal use, the vents 6 and ventilation strips 7 at the ventilation cavity 3 form a heat dissipation channel. When the temperature inside the cabinet 1 is too high, the resistance of the thermistor 8 becomes low, the switch of the electric control valve 12 is turned on, and the nozzle 10 of the dry powder bottle 9 sprays dry powder downward to spray dry powder on the instrument installed below to extinguish the fire or prevent fire. When the nozzle 10 sprays dry powder, it forms a strong airflow and sprays it from the vent 6. The impact force formed by the airflow acts on the rotating plate 13, causing the rotating plate 13 to rotate toward the ventilation cavity 3, and the sealing plate 5 rotates with the rotating shaft 14. When it reaches the vent 6, the sealing gasket 16 on it is pressed on the sealed groove 15, sealing the vent 6 and forming a closed space in the cabinet 1 to prevent fire.

[0025] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A power protection cabinet, comprising a cabinet body (1) and an opening and closing door (2), characterized in that: Ventilation cavities (3) are provided on both sides of the bottom of the cabinet (1); a mounting wall (4) is provided on the opposite side of the two ventilation cavities (3); a ventilation opening (6) is provided at the bottom of the mounting wall (4); a rotating shaft (14) is provided on the mounting wall (4) above the ventilation opening (6); a rotating plate (13) is fixedly provided below the rotating shaft (14) at the ventilation opening (6); and a sealing plate (5) is fixedly provided above the rotating shaft (14); An arc-shaped holder (11) is fixedly provided at the upper end of the cabinet (1), a dry powder bottle (9) is detachably mounted in the arc-shaped holder (11), a trumpet-shaped nozzle (10) with a downward opening is provided at the bottom of the dry powder bottle (9), an electric control valve (12) is provided in the nozzle (10), the electric control valve (12) is connected to a thermistor (8), and a switch of the electric control valve (12) is connected to the thermistor (8).

2. The power protection cabinet according to claim 1, characterized in that: The opening and closing door (2) is connected to the cabinet (1) via a rotating shaft, and when the opening and closing door (2) is closed, it is sealed with the front opening of the cabinet (1) and is sealed with the front end of the ventilation cavity (3). Both sides of the ventilation cavity (3) are provided with through ventilation strips (7). The length of the rotating plate (13) is sufficient to rotate half a circle in the direction of the ventilation cavity (3), and when the rotating plate (13) is located at the ventilation opening (6), the ventilation opening (6) has a ventilation gap.

3. The power protection cabinet according to claim 1, characterized in that: A sealed groove (15) is provided at the edge of the vent (6); when the rotating plate (13) is located at the vent (6), the sealing plate (5) is attached to the mounting wall (4); the shape of the sealing plate (5) matches the vent (6); a sealing gasket (16) is provided at the edge of the sealing plate (5); the shape of the sealing gasket (16) matches the sealed groove (15).

4. The power protection cabinet according to claim 1, characterized in that: When the pressure in the dry powder bottle (9) satisfies the dry powder airflow, the airflow can push the rotating plate (13) when it flows out from the vent (6).

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