Automatic fire extinguishing device for switch cabinet

Abstract

The utility model provides an automatic fire extinguishing device for a switch cabinet, and relates to the technical field of fire extinguishing devices. A fire extinguishing assembly is installed in the switch cabinet. The fire extinguishing assembly is composed of a base, a fire extinguisher and spray pipes, the base is fixed to the left end face of the inner wall of the switch cabinet, the fire extinguisher is fixed to the top of the base, an electric valve used for controlling on-off of the fire extinguisher is installed on the fire extinguisher, and the five spray pipes are connected to the fire extinguisher. According to the switch cabinet, through the arrangement of the plugging assembly, when winding motors on the two winding machines rotate reversely, two baffles can be put down, isolation between the switch cabinet and external air is achieved through blocking of the baffles on ventilation holes, the fire extinguishing effect can be improved, and after circuits of the winding machines are damaged, flames can burn out a connecting rope, so that the switch cabinet is prevented from being damaged. And at the moment, the baffle falls down under the action of gravity, sealing of the ventilation holes can be achieved, and compared with an existing device, the fire extinguishing effect is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire extinguishing devices, and more specifically, relates to an automatic fire extinguishing device for a switch cabinet. Background Art

[0002] After a switch cabinet has been running for a long time, the electronic components inside it will increase the contact resistance at the guide position due to aging, oxidation or operating vibration, generating a large amount of heat. If the heat cannot be dissipated through the heat dissipation holes of the switch cabinet, the oxidation of the contact position will be aggravated over time, forming a vicious cycle and causing disasters such as arcing or combustion.

[0003] Although the existing device has a built-in fire extinguisher, its fire extinguishing method is single and it cannot extinguish the fire by using the fire extinguisher and isolating oxygen at the same time, which affects the fire extinguishing efficiency. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an automatic fire extinguishing device for a switch cabinet to solve the problem that although the existing device has a built-in fire extinguisher, its fire extinguishing method is single and it cannot extinguish the fire by using the fire extinguisher and isolating oxygen at the same time, which affects the fire extinguishing efficiency.

[0005] The purpose and function of the automatic fire extinguishing device for switch cabinets of the utility model are achieved by the following specific technical means:

[0006] An automatic fire extinguishing device for a switch cabinet comprises a switch cabinet; a fire extinguishing component is installed in the switch cabinet.

[0007] Furthermore, the fire extinguishing assembly consists of a base, a fire extinguisher and a nozzle. A base is fixed on the left end face of the inner wall of the switch cabinet, a fire extinguisher is fixed on the top of the base, an electric valve for controlling the on and off of the fire extinguisher is installed on the fire extinguisher, and five nozzles are connected to the fire extinguisher.

[0008] Furthermore, two ventilation holes are provided on the left end face and the right end face of the switch cabinet, and the four ventilation holes together constitute the ventilation structure of the switch cabinet.

[0009] Furthermore, the four ventilation holes are all opened in an inclined shape.

[0010] Furthermore, a blocking assembly is installed in the switch cabinet, which consists of a guide seat, a baffle, a winder and a connecting rope. A guide seat is welded to the left and right end faces of the switch cabinet. A baffle slides on the left guide seat and a baffle also slides on the right guide seat. The two baffles are respectively located above the ventilation holes on both sides.

[0011] Furthermore, a winder is fixed on the left side and the right side of the inner wall of the switch cabinet, and a connecting rope is connected to the winding roller of each winder, and the two connecting ropes are respectively connected to the two baffles.

[0012] Furthermore, a control box is installed on the front end face of the seat body, and a microprocessor is installed in the control box. The microprocessor is electrically connected to an external power supply. Four smoke sensors are installed in the switch cabinet, and the four smoke sensors are all electrically connected to the microprocessor; the microprocessor is electrically connected to the fire extinguisher and the winder.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In this application, through the setting of the blocking component, when the winding motors on the two winders rotate in opposite directions, the two baffles can be lowered. At this time, the baffles block the ventilation holes to achieve isolation between the switch cabinet and the external air, which can improve the fire extinguishing effect. When the winder circuit is damaged, the flame will also burn the connecting rope. At this time, the baffles fall downward under the action of gravity, and the ventilation holes can also be sealed. Compared with the existing device, the fire extinguishing effect is better.

[0015] In this application, by setting up a smoke sensor, four smoke sensors are installed in the switch cabinet, and the four smoke sensors are electrically connected to the microprocessor. The four smoke sensors can improve the detection accuracy and efficiency.

[0016] In this application, through the setting of a microprocessor, a smoke sensor and a fire extinguisher, the smoke sensor transmits smoke information to the microprocessor. When the smoke concentration exceeds the threshold in the microprocessor, the microprocessor controls the electric valve on the fire extinguisher to open, and the fire extinguishing begins at this time. Compared with existing devices, this device can automatically extinguish fires and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is an axial structural diagram of the automatic fire extinguishing device of the switch cabinet.

[0018] Figure 2 This utility model Figure 1 Schematic diagram of the axial structure after rotation.

[0019] Figure 3 The utility model is a partially cutaway axial structural diagram of the automatic fire extinguishing device for a switch cabinet.

[0020] Figure 4 This utility model Figure 3 A is an enlarged structural diagram of FIG.

[0021] Figure 5 This utility model Figure 3 Schematic diagram of the enlarged structure at point B.

[0022] Figure 6 It is a schematic diagram of the system structure of the utility model.

[0023] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0024] 1. Switch cabinet; 101. Ventilation hole; 2. Fire extinguishing assembly; 201. Base; 202. Fire extinguisher; 203. Nozzle; 3. Blocking assembly; 301. Guide seat; 302. Baffle; 303. Winder; 304. Connecting rope; 4. Control box; 401. Microprocessor; 402. Smoke sensor. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by ordinary technicians in the field to which the present invention belongs. Similar words such as "one", "an" or "the" used in the specification and claims of the present utility model patent application do not indicate quantity limitations, but rather indicate the existence of at least one. Similar words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0027] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples.

[0028] Example 1:

[0029] As attached Figure 1 To the attached Figure 6 As shown:

[0030] The utility model provides an automatic fire extinguishing device for a switch cabinet, comprising a switch cabinet 1; a fire extinguishing component 2 is installed in the switch cabinet 1.

[0031] Among them, the fire extinguishing assembly 2 consists of a base 201, a fire extinguisher 202 and a nozzle 203. A base 201 is fixed on the left end face of the inner wall of the switch cabinet 1, and a fire extinguisher 202 is fixed on the top of the base 201. An electric valve for controlling the on and off of the fire extinguisher 202 is installed on the fire extinguisher 202. Five nozzles 203 are connected to the fire extinguisher 202. When extinguishing a fire, the electric valve is turned on. At this time, powder is sprayed out from the five nozzles 203 to extinguish the fire. The synchronous spraying of the five nozzles 203 has a good fire extinguishing effect.

[0032] The switch cabinet 1 has two ventilation holes 101 on both the left and right end faces. The four ventilation holes 101 together constitute the ventilation structure of the switch cabinet 1 . During use, ventilation of the switch cabinet 1 can be achieved through the four ventilation holes 101 .

[0033] The four ventilation holes 101 are all opened in an inclined shape. During use, the inclined ventilation holes 101 can reduce the probability of rainwater entering the switch cabinet 1 through the ventilation holes 101 .

[0034] Among them, a blocking assembly 3 is installed in the switch cabinet 1, and the blocking assembly 3 consists of a guide seat 301, a baffle 302, a winder 303 and a connecting rope 304. A guide seat 301 is welded on the left end face and the right end face of the switch cabinet 1. A baffle 302 slides on the left guide seat 301, and a baffle 302 also slides on the right guide seat 301. The two baffles 302 are respectively located above the ventilation holes 101 on both sides.

[0035] Among them, a winder 303 is fixed on the left and right sides of the inner wall of the switch cabinet 1, and a connecting rope 304 is connected to the winding roller of each winder 303. The two connecting ropes 304 are respectively connected to the two baffles 302. During use, when the winding motors on the two winders 303 rotate in the opposite direction, the two baffles 302 can be lowered. At this time, the baffles 302 block the ventilation holes 101 to achieve isolation between the switch cabinet 1 and the external air, which can improve the fire extinguishing effect. When the circuit of the winder 303 is damaged, the flame will also burn the connecting rope 304. At this time, the baffles 302 fall downward under the action of gravity, and the ventilation holes 101 can also be sealed.

[0036] Example 2:

[0037] On the basis of Example 1, a control box 4 is installed on the front end face of the base body 201, and a microprocessor 401 is installed in the control box 4. The microprocessor 401 is electrically connected to an external power supply. Four smoke sensors 402 are installed in the switch cabinet 1, and the four smoke sensors 402 are all electrically connected to the microprocessor 401; the microprocessor 401 is electrically connected to the fire extinguisher 202 and the winder 303. During use, the smoke sensor 402 transmits smoke information to the microprocessor 401. When the smoke concentration exceeds the threshold value in the microprocessor 401, the microprocessor 401 controls the electric valve on the fire extinguisher 202 to open, and the fire extinguishing begins at this time. At the same time, the microprocessor 401 controls the winding motors on the two winders 303 to rotate and lower the baffle 302.

[0038] Working principle: The smoke sensor 402 transmits the smoke information to the microprocessor 401. When the smoke concentration exceeds the threshold value in the microprocessor 401, the microprocessor 401 controls the electric valve on the fire extinguisher 202 to open, and the fire extinguishing begins at this time. At the same time, the microprocessor 401 controls the winding motors on the two winders 303 to rotate and lower the baffles 302; when the winding motors on the two winders 303 rotate in the opposite direction, the two baffles 302 can be lowered. At this time, the baffles 302 block the ventilation holes 101 to achieve isolation between the switch cabinet 1 and the external air, which can improve the fire extinguishing effect. When the circuit of the winder 303 is damaged, the flame will also burn the connecting rope 304. At this time, the baffle 302 falls downward under the action of gravity, and the ventilation holes 101 can also be sealed.

[0039] Although the present application has been described with reference to the above embodiments, it will be understood by those skilled in the art that various changes may be made without departing from the concept and scope of the present application as defined in the appended claims. Although this specification contains many specific implementation details, these should not be interpreted as limitations on the scope of protection claimed in this application, but rather as descriptions of features specific to specific embodiments. The scope of this application is defined by the appended claims and their equivalents, and is not limited to the embodiments described above.

Claims

1. An automatic fire extinguishing device for a switch cabinet, characterized by: The invention comprises a switch cabinet (1); a fire extinguishing assembly (2) is installed in the switch cabinet (1); the fire extinguishing assembly (2) is composed of a base (201), a fire extinguisher (202) and a nozzle (203); a base (201) is fixed on the left end face of the inner wall of the switch cabinet (1); a fire extinguisher (202) is fixed on the top of the base (201); an electric valve for controlling the on / off of the fire extinguisher (202) is installed on the fire extinguisher (202); and five nozzles (203) are connected to the fire extinguisher (202).

2. The automatic fire extinguishing device for a switch cabinet according to claim 1, characterized in that: Two ventilation holes (101) are provided on both the left end face and the right end face of the switch cabinet (1), and the four ventilation holes (101) together constitute the ventilation structure of the switch cabinet (1).

3. The automatic fire extinguishing device for a switch cabinet according to claim 2, characterized in that: The four ventilation holes (101) are all opened in an inclined shape.

4. The automatic fire extinguishing device for a switch cabinet as claimed in claim 3, characterized in that: A blocking assembly (3) is installed in the switch cabinet (1), and the blocking assembly (3) is composed of a guide seat (301), a baffle (302), a winder (303) and a connecting rope (304). A guide seat (301) is welded to the left end face and the right end face of the switch cabinet (1). A baffle (302) slides on the left guide seat (301), and a baffle (302) also slides on the right guide seat (301). The two baffles (302) are respectively located above the ventilation holes (101) on both sides.

5. The automatic fire extinguishing device for a switch cabinet as claimed in claim 4, characterized in that: A winder (303) is fixed on the left side and the right side of the inner wall of the switch cabinet (1), and a connecting rope (304) is connected to the winding roller of each winder (303), and the two connecting ropes (304) are respectively connected to the two baffles (302).

6. The automatic fire extinguishing device for a switch cabinet as claimed in claim 5, characterized in that: A control box (4) is installed on the front end of the base (201), a microprocessor (401) is installed in the control box (4), and the microprocessor (401) is electrically connected to an external power supply. Four smoke sensors (402) are installed in the switch cabinet (1), and the four smoke sensors (402) are all electrically connected to the microprocessor (401); the microprocessor (401) is electrically connected to the fire extinguisher (202) and the winder (303).

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