Intelligent low-voltage cabinet

Abstract

The utility model discloses an intelligent low-voltage cabinet, which relates to the technical field of low-voltage cabinets and comprises a cabinet body, and ventilation holes are arranged on the side wall of the cabinet body. A fire extinguisher is arranged in the cabinet body; a valve is arranged at an outlet of the fire extinguisher; a sealing plate and a driving part for driving the sealing plate to move are arranged in the cabinet body, the sealing plate has a first state in which the ventilation hole is not shielded and a second state in which the ventilation hole is shielded, and a first traction rope is connected between the sealing plate and the valve; the sealing plate and the valve act synchronously through the first traction rope, and the driving piece acts to open the valve of the fire extinguisher and close the ventilation hole through the sealing plate at the same time; and the fire extinguishing agent is limited in the low-voltage cabinet, so that sufficient fire extinguishing is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage cabinets, in particular to an intelligent low-voltage cabinet. Background Art

[0002] The intelligent low-voltage cabinet detects fires based on fire detection sensors. When a fire is detected, the control device controls the fire extinguisher to extinguish the fire, which can effectively limit the spread of the fire and reduce losses. For example, the utility model patent for a safe and reliable low-voltage cabinet with publication number CN203607718U and the utility model patent for a low-voltage switch cabinet that can independently extinguish fires with publication number CN219917956U can both achieve intelligent fire extinguishing. However, most low-voltage cabinets are equipped with ventilation holes for ventilation and heat dissipation. When a fire occurs, the ventilation holes are not closed in time and the risk of fire spread cannot be eliminated in time. On the other hand, when the fire extinguisher outputs the fire extinguishing agent, part of the fire extinguishing agent is discharged through the ventilation holes, polluting the external environment of the low-voltage cabinet site, which is not conducive to the fire extinguishing agent fully extinguishing the fire. Utility Model Content

[0003] The purpose of the present invention is to provide an intelligent low-voltage cabinet in order to solve the above-mentioned problems in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] An intelligent low-voltage cabinet includes a cabinet body, wherein the side walls of the cabinet body are provided with ventilation holes; a fire extinguisher is provided in the cabinet body, and a valve is provided at the outlet of the fire extinguisher; a sealing plate and a driving member for driving the sealing plate to move are provided in the cabinet body, the sealing plate has a first state of not blocking the ventilation holes and a second state of blocking the ventilation holes, and a first traction rope is connected between the sealing plate and the valve.

[0006] Furthermore, when the sealing plate is in the second state, the valve is opened by the first traction rope.

[0007] Furthermore, the valve includes a valve body and a valve plate plugged into the valve body, the outer end of the valve plate is connected to the valve stem, and the valve stem is connected to the first traction rope; a first spring is connected between the valve plate and the valve body, and when the valve plate is not subjected to external force, the first spring causes the valve plate to close the valve body channel.

[0008] Furthermore, a storage rack for placing fire extinguishers is provided in the cabinet.

[0009] Furthermore, the sealing plate is connected to the cabinet body in a linear sliding manner; and a guide rail for guiding the sealing plate is provided in the cabinet body.

[0010] Furthermore, there are two ventilation holes and two sealing plates; a second traction rope is connected between the two sealing plates; and a plurality of guide columns supporting the second traction rope are provided in the cabinet.

[0011] Furthermore, one sealing plate is connected to the driving member; and a second spring is connected between the other sealing plate and the cabinet body.

[0012] Furthermore, the driving member is an automatic telescopic rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model uses a first traction rope to synchronize the sealing plate and the valve. The action of the driving member can simultaneously open the fire extinguisher valve and use the sealing plate to close the ventilation hole. It can timely prevent the fire from spreading outward, reduce the external oxygen supply to the low-pressure cabinet, and limit the fire extinguishing agent in the low-pressure cabinet, which is conducive to fully extinguishing the fire and can avoid the phenomenon that a large amount of fire extinguishing agent is discharged from the low-pressure cabinet, causing pollution and chaos on the scene. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the cabinet of the present invention.

[0017] Figure 3 This is a schematic diagram of the internal structure of the upper end of the cabinet of the present invention.

[0018] Figure 4 This is a schematic diagram of the valve structure of the present utility model.

[0019] Figure 5 This is a schematic diagram of the internal structure of the lower end of the cabinet of the present invention.

[0020] In the figure: 1. Cabinet; 2. Ventilation hole; 3. Fire extinguisher; 4. Valve; 5. Closing plate; 6. Driving member; 7. First traction rope; 8. Storage rack; 9. Guide rail; 10. Middle plate; 11. Second traction rope; 12. Guide column; 13. Second spring; 41. Valve body; 42. Valve plate; 43. Valve stem; 44. First spring. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for the purpose of explaining the present invention and are not intended to limit the present invention. That is, the embodiments described herein are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein can be arranged and designed in a variety of different configurations.

[0022] In the description of this utility model, unless otherwise specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0023] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "provided with" and "provided with" that may appear should be understood in a broad sense. For example, the object "provided with" may be a part of the main body, or may be arranged separately from the main body and connected to the main body. The connection may be detachable or non-detachable. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0025] The following is a further detailed description of the present invention in conjunction with the embodiments. Figure 1-5 .

[0026] Specific embodiment 1 of the intelligent low-voltage cabinet provided by the utility model:

[0027] The intelligent low-voltage cabinet includes a cabinet body 1, a side wall of which is provided with a ventilation hole 2; a filter is installed in the ventilation hole 2. In some other embodiments, a fan is provided outside the ventilation hole 2 to increase air circulation speed and promote heat dissipation of the low-voltage cabinet.

[0028] The upper portion of the cabinet 1 is provided with a fire extinguisher 3 and a storage rack 8 for placing the fire extinguisher 3. The storage rack 8 is sized to fit the fire extinguisher 3 and prevent the fire extinguisher 3 from shaking. In this embodiment, the storage rack 8 is in the form of an L-shaped plate. The storage rack 8 cooperates with the inner wall of the cabinet 1 to form a storage space for the fire extinguisher 3 while preventing it from shaking.

[0029] In this embodiment, the fire extinguisher 3 has a built-in heptafluoropropane fire extinguishing agent. Heptafluoropropane is colorless, odorless, low-toxic, non-conductive, does not pollute the protected object, and will not cause damage to property and precision facilities. Heptafluoropropane can reliably extinguish Class B and Class C fires and electrical fires at a lower fire extinguishing concentration. It has a small storage space, a high critical temperature, a low critical pressure, and can be liquefied and stored at room temperature. It is suitable for configuration in a low-pressure cabinet for fire extinguishing.

[0030] The outlet of the fire extinguisher 3 is connected to an output pipe, on which a valve 4 is provided; a nozzle is provided at the end of the output pipe. When the valve 4 is opened, the fire extinguishing agent is sprayed downward through the nozzle to extinguish the fire.

[0031] The cabinet 1 is provided with a sealing plate 5 and a driving member 6 for moving the sealing plate 5. The sealing plate 5 is connected to the cabinet 1 in a linear sliding manner. A guide rail 9 is provided within the cabinet 1 to guide the sealing plate 5. In this embodiment, the guide rails 9 are provided on both the upper and lower sides of the sealing plate 5. The guide rails 9 have an L-shaped cross-section. The sealing plate 5 slides horizontally between the inner side of the guide rails 9 and the inner wall of the cabinet 1. The ventilation hole 2 is located between the middle of the guide rails 9 on the upper and lower sides of the sealing plate 5.

[0032] The driving member 6 is an automatic telescopic rod. In this embodiment, the automatic telescopic rod is an electric telescopic rod. The electric telescopic rod is horizontally arranged, and its telescopic end is connected to the sealing plate 5 to drive the sealing plate 5 to move horizontally along the guide rail 9, so that the sealing plate 5 has a first state of not blocking the ventilation hole 2 and a second state of blocking the ventilation hole 2.

[0033] A first traction rope 7 is connected between the sealing plate 5 and the valve 4. Specifically, the valve 4 includes a valve body 41 and a valve plate 42 that plugs into the valve body 41. The structure of the valve body 41 and valve plate 42 is the same as that of a plug-in valve. The outer end of the valve plate 42 is connected to a valve stem 43, which is connected to the first traction rope 7. A first spring 44 is connected between the valve plate 42 and the valve body 41, and the valve stem 43 passes through the first spring 44.

[0034] In this embodiment, an intermediate plate 10 is connected to the outside of the sealing plate 5, and the telescopic end of the automatic telescopic rod is directly connected to the intermediate plate 10 to realize its connection with the sealing plate 5; the first traction rope 7 is also directly connected to the intermediate plate 10 to realize its connection with the sealing plate 5.

[0035] When there is no fire, the sealing plate 5 is in the first state where it does not block the ventilation hole 2, the valve plate 42 is not subjected to external force, and the first spring 44 causes the valve plate 42 to close the valve body 41 channel. In some embodiments, a sensor for detecting fire is provided in the cabinet 1, such as a temperature sensor, a smoke sensor, a CO sensor, etc.; a controller is provided on the cabinet 1. When a fire is detected, the controller receives the signal from the sensor and controls the telescopic end of the automatic telescopic rod to extend, so that the sealing plate 5 moves to the second state. During the movement of the sealing plate 5, the first traction rope 7 is first straightened, and then the first traction rope 7 is driven to pull the valve stem 43 and the valve plate 42 outward, so that the valve plate 42 overcomes the elastic force of the first spring 44, and the valve plate 42 no longer closes the valve body 41 channel, and the valve 4 is in the open state. In this way, while the sealing plate 5 closes the ventilation hole 2, the valve 4 of the fire extinguisher 3 is opened, and the fire extinguishing agent is output to extinguish the fire, which can effectively prevent the spread of the fire, achieve efficient and rapid fire extinguishing, and at the same time ensure that the external environment of the low-voltage cabinet is clean.

[0036] Specific embodiment 2 of the intelligent low-voltage cabinet provided by the utility model:

[0037] In the prior art, intelligent low-voltage cabinets often have ventilation holes 2 at both ends, allowing airflow to pass through the interior of the cabinet 1 and ensure sufficient heat dissipation. Therefore, in this embodiment, ventilation holes 2 are provided at both the top and bottom ends of the cabinet 1, and corresponding sealing plates 5 and guide rails 9 are provided inside the ventilation holes 2. There are two ventilation holes 2 and two sealing plates 5.

[0038] In order to ensure that the two ventilation holes 2 can be closed and opened synchronously, in this embodiment, a second traction rope 11 is connected between the two sealing plates 5; a plurality of guide columns 12 supporting the second traction rope 11 are provided in the cabinet 1, and the cross-section of the guide column 12 is T-shaped.

[0039] The upper end of the cabinet 1 has a sealing plate 5 connected to the driver 6. Specifically, the outer side of the sealing plate 5 is connected to the intermediate plate 10. The lower end of the cabinet 1 has no intermediate plate 10. Normally, the upper and lower sealing plates 5 of the cabinet 1 are located on different sides of the ventilation hole 2. When the driver 6 moves the upper sealing plate 5 to the right to block the upper ventilation hole 2, the lower sealing plate 5 can be moved to the left to close the lower ventilation hole 2 via a second traction rope 11.

[0040] A second spring 13, a tension spring, is connected between the sealing plate 5 at the lower end of the cabinet body 1 and the cabinet body 1. When the lower sealing plate 5 is not subject to the external force of the second traction rope 11, the second spring 13 causes the lower sealing plate 5 to move rightward to a position where it does not block the lower ventilation hole 2. The external force on the lower sealing plate 5 is provided by the upper sealing plate 5 and the second traction rope 11, so the two sealing plates 5 can simultaneously close and open the ventilation hole 2.

[0041] In this embodiment, the first traction rope 7 and the second traction rope 11 are both made of high-temperature resistant steel wire ropes, which can prevent them from being quickly damaged and losing their function in a fire.

[0042] Finally, it should be noted that 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 can still modify the technical solutions described in the aforementioned embodiments without inventive effort, 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. An intelligent low-voltage cabinet, comprising a cabinet body (1), wherein a side wall of the cabinet body (1) is provided with ventilation holes (2); characterized in that: A fire extinguisher (3) is provided in the cabinet (1), and a valve (4) is provided at the outlet of the fire extinguisher (3); a sealing plate (5) and a driving member (6) for driving the sealing plate (5) to move are provided in the cabinet (1); the sealing plate (5) has a first state in which it does not block the ventilation hole (2) and a second state in which it blocks the ventilation hole (2); a first traction rope (7) is connected between the sealing plate (5) and the valve (4).

2. The intelligent low-voltage cabinet according to claim 1, characterized in that: When the sealing plate (5) is in the second state, the valve (4) is placed in an open state via the first traction rope (7).

3. The intelligent low-voltage cabinet according to claim 1 or 2, characterized in that: The valve (4) comprises a valve body (41) and a valve plate (42) plugged into the valve body (41); the outer end of the valve plate (42) is connected to a valve stem (43), and the valve stem (43) is connected to a first traction rope (7); a first spring (44) is connected between the valve plate (42) and the valve body (41); when the valve plate (42) is not subjected to external force, the first spring (44) causes the valve plate (42) to close the passage of the valve body (41).

4. The intelligent low-voltage cabinet according to claim 1, characterized in that: A storage rack (8) for placing the fire extinguisher (3) is provided in the cabinet (1).

5. The intelligent low-voltage cabinet according to claim 1, characterized in that: The sealing plate (5) is connected to the cabinet body (1) in a linear sliding manner; a guide rail (9) for guiding the sealing plate (5) is provided in the cabinet body (1).

6. The intelligent low-voltage cabinet according to claim 1, characterized in that: The number of the ventilation holes (2) and the sealing plates (5) is two; a second traction rope (11) is connected between the two sealing plates (5); and a plurality of guide pillars (12) supporting the second traction rope (11) are provided in the cabinet body (1).

7. The intelligent low-voltage cabinet according to claim 6, characterized in that: One sealing plate (5) is connected to the driving member (6); a second spring (13) is connected between the other sealing plate (5) and the cabinet body (1).

8. The intelligent low-voltage cabinet according to claim 1, characterized in that: The driving member (6) is an automatic telescopic rod.

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