Fire extinguishing device of elevator

Abstract

The utility model provides an elevator fire extinguishing device which comprises a box body, a detection assembly arranged on the box body and used for monitoring the temperature in the box body, a fire extinguishing assembly arranged at the lower end of the box body, an execution end of the fire extinguishing assembly communicated to the interior of the box body, an upper end of the box body connected to a dragging mechanism, and an air inlet assembly arranged in the box body, the gas inlet assembly is located above the execution end of the fire extinguishing assembly and used for injecting gas into the box body. According to the fire extinguishing device of the elevator, the air inlet assembly can inject air into the box body to exhaust smoke dissipated in the box body, harm of smoke dust to a human body is reduced, the temperature of the box body is detected through the detection assembly, and fire extinguishing treatment is carried out through the fire extinguishing assembly when a fire breaks out is judged.

Description

Technical Field

[0001] The utility model belongs to the field of elevator fire extinguishing, in particular to a fire extinguishing device for an elevator. Background Art

[0002] An elevator is a permanent transportation device serving specific floors within a building, with its car running on at least two rows of rigid rails perpendicular to the horizontal plane or inclined at an angle of less than 15° to the vertical. The car's size and structure facilitate passenger entry and exit, as well as loading and unloading of goods. Elevators are generally used as a general term for vertical transportation within a building, regardless of their drive method.

[0003] Because there are people and objects in the elevator car, inert gas cannot be used for fire extinguishing to avoid suffocation. At the same time, if water spray is used, it is easy to cause secondary injuries to people due to the complex ignition materials or circuit connections. Nowadays, electric bicycles and other items loaded with batteries often explode in elevators, but there is a lack of effective fire extinguishing methods in elevator cars. Summary of the Invention

[0004] In view of this, the present invention aims to provide a fire extinguishing device for an elevator to solve the problem in the prior art that there is no effective fire extinguishing device when a fire occurs in the elevator box.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0006] A fire extinguishing device for an elevator includes a box body, a detection component is provided on the box body, the detection component is used to monitor the temperature inside the box body, a fire extinguishing component is provided at the lower end of the box body, and the execution end of the fire extinguishing component is connected to the interior of the box body, the upper end of the box body is connected to the towing mechanism, and an air intake component is provided in the box body, the air intake component is located above the execution end of the fire extinguishing component, and the air intake component is used to inject air into the box body.

[0007] Furthermore, the box body includes a side wall structure, and the cross-section of the side wall structure is a U-shaped structure, the end cover is installed at the upper end of the side wall structure, the bottom plate is set at the lower end of the side wall structure, and the elevator door is set at the open end of the side wall structure. The execution end of the fire extinguishing assembly is installed to the side of the U-shaped structure close to the bottom plate, and the air intake assembly is installed to the side of the U-shaped structure close to the end cover.

[0008] Furthermore, thermal insulation partitions are respectively provided on the periphery of the side wall structure and the lower end of the bottom plate.

[0009] Furthermore, the detection component includes multiple temperature sensing probes, and multiple temperature sensing probes are respectively arranged on each outer side surface of the side wall structure and the lower end of the bottom plate, and the multiple temperature sensing probes are arranged independently of each other. Each temperature sensing probe is located in the insulation partition, and the execution end of each temperature sensing probe is attached to the outer periphery of the side wall structure or the lower end surface of the bottom plate, and a smoke sensor is arranged on the end cover.

[0010] Furthermore, the fire extinguishing assembly includes a tank body filled with dry powder, and the tank body is connected to a spray nozzle through a pipeline, and a solenoid valve is provided on the pipeline, and the spray nozzle is installed on one side of the U-shaped structure close to the bottom plate.

[0011] Furthermore, the air intake assembly includes an air intake nozzle, and the air intake seat is installed on a side of the U-shaped structure close to the end cover. The air intake nozzle is connected to the air compressor through a first air pipe.

[0012] Furthermore, the air intake assembly also includes a second air pipe, one end of the second air pipe is connected to the air intake nozzle, and the other end of the second air pipe is connected to the air storage tank.

[0013] Furthermore, the air inlet nozzle and the spray nozzle have the same structure. The spray nozzle includes a mounting seat. A mounting hole is provided on the side wall structure. The mounting seat is installed in the mounting hole. A ball socket is provided on the inner ring of the mounting seat. The roller in the ball socket is connected to the hollow ball head, and a tube body and a nozzle are respectively provided on the hollow ball head. The tube body is connected to the tank body through a pipeline, and the nozzle is located in the side wall structure.

[0014] Compared with the prior art, the fire extinguishing device for an elevator described in the present invention has the following beneficial effects:

[0015] (1) The fire extinguishing device of an elevator described in the present invention has an air intake component that can inject air into the box to discharge the smoke that escapes from the box, thereby reducing the harm of smoke to the human body, and detects the temperature of the box through the detection component. When it is determined that a fire has occurred, the fire extinguishing component is used to extinguish the fire.

[0016] (2) The fire extinguishing device of an elevator described in the present invention has a tank filled with dry powder, and a spray nozzle is installed on the side of the U-shaped structure close to the bottom plate. The dry powder is sprayed toward the middle and lower part of the box through the spray nozzle to extinguish the fire while reducing the impact on passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a structural diagram of a fire extinguishing device for an elevator according to an embodiment of the present utility model;

[0019] Figure 2 A schematic side view of a side wall structure according to an embodiment of the present utility model;

[0020] Figure 3 This is a schematic structural diagram of the spray nozzle according to an embodiment of the present utility model;

[0021] Figure 4 This is a cross-sectional schematic diagram of the spray nozzle described in an embodiment of the present utility model.

[0022] Description of reference numerals:

[0023] 1-Box body; 11-Side wall structure; 12-End cover; 13-Bottom plate; 14-Insulation partition; 15-Mounting hole; 2-Detection component; 21-Temperature sensor; 3-Fire extinguishing component; 31-Tank body; 32-Spray nozzle; 321-Mounting seat; 322-Hollow ball head; 323-Tube body; 324-Nozzle; 4-Intake assembly. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections 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.

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0028] like Figures 1-4 As shown, a fire extinguishing device for an elevator includes a box body 1, a detection component 2 is provided on the box body 1, the detection component 2 is used to monitor the temperature inside the box body 1, a fire extinguishing component 3 is provided at the lower end of the box body 1, and the execution end of the fire extinguishing component 3 is connected to the interior of the box body 1, the upper end of the box body 1 is connected to the towing mechanism, and an air intake component 4 is provided in the box body 1, the air intake component 4 is located above the execution end of the fire extinguishing component 3, the air intake component 4 is used to inject air into the box body 1, and the air intake component 4 can inject air into the box body 1 to discharge the smoke dissipated in the box body 1, thereby reducing the harm of smoke to the human body, and the temperature of the box body 1 is detected by the detection component 2. When it is judged that a fire has occurred, the fire extinguishing component 3 is used to extinguish the fire.

[0029] The box body 1 includes a side wall structure 11, and the cross-section of the side wall structure 11 is a U-shaped structure. The end cover 12 is installed at the upper end of the side wall structure 11, and the bottom plate 13 is set at the lower end of the side wall structure 11. The open end of the side wall structure 11 is provided with an elevator door. The execution end of the fire extinguishing component 3 is installed to the side of the U-shaped structure close to the bottom plate 13, and the air intake component 4 is installed to the side of the U-shaped structure close to the end cover 12. Insulation partitions 14 are respectively provided on the outer periphery of the side wall structure 11 and the lower end of the bottom plate 13. The insulation partition 14 is used to isolate the temperature inside the box body 1 from the elevator shaft to prevent inaccurate detection points of the detection component 2.

[0030] The detection assembly 2 includes multiple temperature sensing probes 21, and each outer side surface of the side wall structure 11 and the lower end of the bottom plate 13 are respectively provided with multiple temperature sensing probes 21, and the multiple temperature sensing probes 21 are independently provided. Each temperature sensing probe 21 is located in the thermal insulation partition 14, and the execution end of each temperature sensing probe 21 is attached to the outer periphery of the side wall structure 11 or the lower end surface of the bottom plate 13, and the temperature sensing probe 21 is a temperature sensor of the prior art. A smoke sensor of the prior art is synchronously provided on the end cover 12, such as Figure 2 As shown, multiple temperature sensors 21 are distributed in an array on each side, and the fire status in the box is determined by multi-point detection to prevent the fire extinguishing component 3 from being accidentally activated and disturbing the passengers.

[0031] The fire extinguishing assembly 3 includes a tank body 31. Since there are passengers in the box body 1 and the side wall structural members 11 of the box body 1 are all metal products, there are no fire conditions. Usually, the fire is caused by passengers or goods. Dry powder is filled in the tank body 31, and the tank body 31 is connected to the spray nozzle 32 through a pipeline, and a solenoid valve is provided on the pipeline. The spray nozzle 32 is installed on the side of the U-shaped structure close to the bottom plate 13. The dry powder is sprayed to the middle and lower part of the box body 1 through the spray nozzle 32 to extinguish the fire while reducing the impact on passengers.

[0032] The air intake assembly 4 includes an air intake nozzle, and the air intake seat is installed on the side of the U-shaped structure close to the end cover 12. The air intake nozzle is connected to the air compressor through a first air pipe. The air compressor can be installed side by side with the towing mechanism. The length of the first air pipe is adjustable. The air compressor is used to inject compressed air into the box body 1 through the first air pipe and the air intake nozzle. When the temperature in the box body 1 does not rise, it is in a non-fire state. After the smoke sensor detects the smoke, it dilutes and discharges the smoke in the box body 1 with compressed air to avoid affecting the passengers.

[0033] The air intake assembly 4 also includes a second air pipe, one end of the second air pipe is connected to the air intake nozzle, and the other end of the second air pipe is connected to the gas tank. A solenoid valve is provided on the gas tank, and the gas tank can be installed in a designated position according to the on-site working conditions. A video probe is provided in the elevator box 1 of the prior art, and the staff can visually observe the status inside the box 1. If the staff can effectively observe that there are no passengers in the box 1, the staff can inject fire extinguishing gas into the box 1 through the gas tank, and the fire extinguishing gas can be nitrogen or carbon dioxide to improve the fire extinguishing efficiency in the box 1.

[0034] The air inlet nozzle and the spray nozzle 32 have the same structure. The spray nozzle 32 includes a mounting seat 321. The side wall structure 11 is provided with a mounting hole 15. The mounting seat 321 is installed in the mounting hole 15. The inner ring of the mounting seat 321 is provided with a ball socket. The roller in the ball socket is connected to the hollow ball head 322, and the hollow ball head 322 is respectively provided with a tube body 323 and a nozzle 324. The tube body 323 is connected to the tank body 31 through a pipeline. The nozzle 324 is located in the side wall structure 11. The hollow ball head 322 can rotate in the ball socket of the mounting seat 321 to adjust the spraying angle of the nozzle 324 to meet various usage conditions.

[0035] The control method of this embodiment is controlled by a controller. The temperature sensor, smoke sensor, solenoid valve and air compressor are all connected to the controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. This article is mainly used to protect mechanical devices. The control method and circuit connection are not explained in detail in this article.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An elevator fire extinguishing device, characterized in that: The invention comprises a box (1), a detection assembly (2) is arranged on the box (1), the detection assembly (2) is used to monitor the temperature in the box (1), a fire extinguishing assembly (3) is arranged at the lower end of the box (1), and the execution end of the fire extinguishing assembly (3) is connected to the interior of the box (1), the upper end of the box (1) is connected to the towing mechanism, and an air intake assembly (4) is arranged in the box (1), the air intake assembly (4) is located above the execution end of the fire extinguishing assembly (3), and the air intake assembly (4) is used to inject air into the box (1); The box body (1) includes a side wall structure (11), and the cross section of the side wall structure (11) is a U-shaped structure. The upper end of the side wall structure (11) is installed with an end cover (12), the lower end of the side wall structure (11) is provided with a bottom plate (13), and the open end of the side wall structure (11) is provided with an elevator door. The execution end of the fire extinguishing assembly (3) is installed on the side of the U-shaped structure close to the bottom plate (13), and the air intake assembly (4) is installed on the side of the U-shaped structure close to the end cover (12). The fire extinguishing assembly (3) includes a tank body (31), the tank body (31) is filled with dry powder, and the tank body (31) is connected to a spray nozzle (32) through a pipeline, and a solenoid valve is provided on the pipeline, and the spray nozzle (32) is installed on one side of the U-shaped structure close to the bottom plate (13); The air inlet nozzle and the spray nozzle (32) have the same structure. The spray nozzle (32) includes a mounting seat (321). A mounting hole (15) is provided on the side wall structure (11). The mounting seat (321) is installed in the mounting hole (15). A ball socket is provided on the inner ring of the mounting seat (321). A roller in the ball socket is connected to a hollow ball head (322). A tube body (323) and a nozzle (324) are respectively provided on the hollow ball head (322). The tube body (323) is connected to the tank body (31) through a pipeline. The nozzle (324) is located in the side wall structure (11).

2. The fire extinguishing device for an elevator according to claim 1, characterized in that: Thermal insulation partitions (14) are respectively provided on the periphery of the side wall structure (11) and the lower end of the bottom plate (13).

3. The fire extinguishing device for an elevator according to claim 2, characterized in that: The detection component (2) includes a plurality of temperature sensing probes (21), and each outer side surface of the side wall structure (11) and the lower end of the bottom plate (13) are respectively provided with a plurality of temperature sensing probes (21), and the plurality of temperature sensing probes (21) are independently provided with each other, each temperature sensing probe (21) is located in the heat-insulating partition (14), and the execution end of each temperature sensing probe (21) is attached to the outer periphery of the side wall structure (11) or the lower end surface of the bottom plate (13), and a smoke sensor is provided on the end cover (12).

4. The fire extinguishing device for an elevator according to claim 1, characterized in that: The air intake assembly (4) comprises an air intake nozzle, an air intake seat is mounted on one side of the U-shaped structure close to the end cover (12), and the air intake nozzle is connected to the air compressor through a first air pipe.

5. The fire extinguishing device for an elevator according to claim 4, characterized in that: The air intake assembly (4) further comprises a second air pipe, one end of which is connected to the air intake nozzle, and the other end of which is connected to the air storage tank.

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