Local automatic fire extinguishing device

Abstract

The utility model provides a local automatic fire extinguishing device, which belongs to the technical field of fire fighting equipment, and comprises a cover cloth and a cover body framework, the cover body framework is connected with the cover cloth, and the cover body framework comprises a main frame body and a plurality of telescopic support rods; the main frame body is suspended and fixed by the lifting assembly; the telescopic supporting rod is rotationally connected with the lower end face of the main frame body, and an unfolding driving part is arranged between the telescopic supporting rod and the main frame body and is arranged on the front side of the telescopic supporting rod in the clockwise direction or the anticlockwise direction. According to the local automatic fire extinguishing device provided by the utility model, the automatic opening of the cover body is realized, and the unfolding speed of the cover body is improved; the cover body is suspended above the parking space in a retracted state, so that the cover body does not occupy the ground space, and the space occupancy rate is reduced; the telescopic supporting rods are rotated and opened in the clockwise or anticlockwise direction at the same time, so that the covering cloth is always in a tensioned state in the opening process, the situation that the covering cloth falls between the telescopic supporting rods to affect parking of a vehicle is avoided, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire fighting equipment, and more specifically, relates to a local automatic fire extinguishing device. Background Art

[0002] In recent years, there have been incidents of spontaneous combustion of electric vehicles during charging, causing property losses and personal injuries, seriously affecting the living order of residents. Electric vehicle fire extinguishing mostly uses dry powder, but this method has a slow fire extinguishing speed, causes great losses, and cannot suppress the spread of smoke. In order to overcome the shortcomings of the existing slow fire extinguishing speed of electric vehicles, a fire extinguishing hood can be used to cover the electric vehicle, reduce the contact between the electric vehicle fire source and the outside air and the wind force on the fire, control the fire and suffocate the fire.

[0003] At present, fire extinguishing hoods are mainly divided into two categories. One is manual installation, such as the utility model patent application with application number 200720139229.9, which discloses a car rapid fire extinguishing and fireproof hood, which uses manual installation to set the fire extinguishing hood on the outside of the car and make the hood body fully contact with the ground to achieve flame retardant fire extinguishing effect; the second is automatic installation, such as the utility model patent application with application number: 201921753001.8, which discloses a fire extinguishing hood, which uses a mechanical arm to connect the inflatable hood, and the inflatable hood is timely installed on the outside of the car by the mechanical arm to achieve flame retardant fire extinguishing effect. However, the first type of fire extinguishing hood has the problems of complex installation, time-consuming and labor-intensive, and untimely installation; the second type of fire extinguishing hood has the problems of large space occupancy, high equipment cost, poor economic practicality, etc. Utility Model Content

[0004] The utility model aims to provide a local automatic fire extinguishing device, aiming to realize the problem of automatic opening of a cover body and reducing space occupancy rate.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a local automatic fire extinguishing device, including a cover cloth and a cover body frame, the cover body frame is connected to the cover cloth, and the cover body frame includes a main frame and a plurality of telescopic support rods; the upper end of the main frame is suspended and fixed by means of a lifting assembly; a plurality of the telescopic support rods are distributed at intervals in the circumference of the main frame, the telescopic support rods are rotatably connected to the lower end surface of the main frame, and an unfolding driving member is provided between the telescopic support rod and the main frame, the unfolding driving member is arranged on the front side of the telescopic support rod in a clockwise or counterclockwise direction, and the unfolding driving member drives the plurality of telescopic support rods to rotate simultaneously in a clockwise or counterclockwise direction to drive the cover cloth to unfold to form a cover body with an opening downward.

[0006] As another embodiment of the present application, the deployment driving member is an elastic member, and the elastic member is always in a compressed state.

[0007] As another embodiment of the present application, a positioning portion is provided on a side of the telescopic support rod away from the unfolding driving member, and the positioning portion is used to abut against the main frame to limit the unfolding angle of the telescopic support rod.

[0008] As another embodiment of the present application, the angle between the telescopic support rod in the unfolded state and the lower end surface of the main frame is 90°-145°.

[0009] As another embodiment of the present application, an electromagnetic switch is further provided between the telescopic support rod and the main frame.

[0010] As another embodiment of the present application, the main frame is a rectangular frame; there are four telescopic support rods, which are respectively located at the four corners of the main frame; the four telescopic support rods in the retracted state are folded one by one under the four outer frames of the rectangular frame.

[0011] As another embodiment of the present application, the main frame further includes an intermediate fixing plate, which is located at the center of the outer frame and connected to the outer frame via a connecting rod; the lifting assembly is connected to the intermediate fixing plate.

[0012] As another embodiment of the present application, an electrical rail is provided at the lower end of the main frame along the length direction and / or the width direction, and a detector and a dry powder fire extinguisher are installed on the electrical rail.

[0013] The beneficial effects of the local automatic fire extinguishing device provided by the utility model are as follows: compared with the prior art, in the local automatic fire extinguishing device of the utility model, the telescopic support rods are opened simultaneously with the help of the unfolding drive member, thereby realizing the automatic opening of the cover body and improving the unfolding speed of the cover body; at the same time, the cover body is suspended above the parking space by means of a lifting assembly connected to the main frame in the retracted state, without occupying ground space, thereby reducing the space occupancy rate; in addition, multiple telescopic support rods are rotated and opened in a clockwise or counterclockwise direction at the same time, so that the cover cloth is always in a tensioned state during the opening process, thereby avoiding the cover cloth from falling from between the telescopic support rods to affect the parking of the vehicle and reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 A bottom view of the cover frame provided in the first embodiment of the utility model in an unfolded state;

[0016] Figure 2 A front view of the cover frame provided in the first embodiment of the utility model in an unfolded state;

[0017] Figure 3 A top view of a local automatic fire extinguishing device provided in a second embodiment of the utility model in an unfolded state;

[0018] Figure 4 This is a front view of the cover frame provided in the second embodiment of the utility model in the unfolded state.

[0019] In the figure: 1. outer frame; 2. middle fixed plate; 3. connecting rod; 4. telescopic support rod; 5. torsion spring; 6. cover cloth. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] See also Figures 1 to 4 The local automatic fire extinguishing device provided by the utility model is now described. The local automatic fire extinguishing device comprises a cover cloth 6 and a cover body frame, the cover body frame is connected to the cover cloth 6, and the cover body frame comprises a main frame and a plurality of telescopic support rods 4; the main frame is suspended and fixed by means of a lifting assembly; a plurality of telescopic support rods 4 are distributed at intervals in the circumference of the main frame, the telescopic support rods 4 are rotatably connected to the lower end surface of the main frame, and an unfolding driving member is provided between the telescopic support rod 4 and the main frame, the unfolding driving member is arranged on the front side of the telescopic support rod 4 in a clockwise or counterclockwise direction, and the unfolding driving member drives the plurality of telescopic support rods 4 to rotate simultaneously in a clockwise or counterclockwise direction to drive the cover cloth 6 to unfold to form a cover body with an opening downward.

[0022] Compared with the prior art, the local automatic fire extinguishing device provided by the utility model has the advantages that the telescopic support rods 4 are opened simultaneously with the help of the unfolding driving member, so that the cover body is automatically opened and the unfolding speed of the cover body is improved; at the same time, the cover body is suspended above the parking space by means of a lifting assembly connected to the main frame in the retracted state, and does not need to occupy ground space, thereby reducing the space occupancy rate; in addition, multiple telescopic support rods 4 are rotated and opened in a clockwise or counterclockwise direction at the same time, so that the cover cloth 6 is always in a tensioned state during the opening process, thereby avoiding the cover cloth 6 from falling from between the telescopic support rods 4 to affect the parking of the vehicle and reducing safety hazards.

[0023] The telescopic assembly connected to the upper end of the main frame can adopt telescopic equipment such as electric push rods and hydraulic cylinders. The upper end of the telescopic assembly is suspended on a building structure such as a roof beam of the garage, so that the main frame is located above the parking space and covers the entire parking space or vehicle.

[0024] The main frame and the telescopic support rod 4 are both located on the inner side of the cover cloth 6 and connected to the inner side of the cover cloth 6. The main frame is a fixed part, which drives the cover body to rise and fall as a whole with the help of a lifting assembly. The telescopic support rod 4 is located at the lower end of the main frame and rotates to switch the unfolding state of the movable part of the cover body. The main frame and the telescopic support rod 4 are both made of aluminum alloy, and the cover cloth 6 is made of high-temperature refractory cloth made of high-silica sand wire.

[0025] Optionally, the unfolding driving member is arranged on the front side of the telescopic support rod 4 in the clockwise direction. The unfolding driving member is a telescopic structure. When the unfolding driving member is in a shortened state, the telescopic support rod 4 is pulled in a retracted state; when the cover body needs to be unfolded, the unfolding driving member extends and pushes the telescopic support rod 4 to rotate and open in the clockwise direction, and drives the cover cloth 6 to unfold to form the cover body.

[0026] On the contrary, when the unfolding driving member is arranged at the front side of the telescopic support rod 4 in the counterclockwise direction, the unfolding driving member pushes the telescopic support rod 4 to rotate and open in the counterclockwise direction, and drives the cover cloth 6 to unfold the cover body. The rotation directions of the multiple telescopic support rods 4 are consistent, so that the multiple telescopic support rods 4 can tighten the cover cloth 6.

[0027] The telescopic support rod 4 is rotatably connected to the lower end of the main frame body by means of a bearing. Specifically, a hinged portion for mounting the telescopic support rod 4 is provided at the lower end of the main frame body, the hinged portion protrudes from the lower end surface of the main frame body and is rotatably connected to the telescopic support rod 4. The hinged portion includes two ear plates respectively located on both sides of the telescopic support rod 4; the telescopic support rod 4 is rotatably connected to the two ear plates by means of a hinged shaft, and the hinged shaft can be a bolt or a bearing.

[0028] A locking switch is provided between the telescopic support rod 4 and the main frame, and the locking switch is used to lock the retracted state of the telescopic support rod 4 to prevent the telescopic support rod 4 from being opened at will. The locking switch adopts an electromagnetic switch. When the electromagnetic switch is turned on, the expansion drive member can drive the telescopic support rod 4; when the electromagnetic switch is locked, the expansion drive member and the telescopic support rod 4 are locked in a retracted state. Optionally, the electromagnetic switch is provided on one side of the bearing, and the active end of the electromagnetic switch is mounted on the lower end surface of the main frame or on the hinged part of the main frame, and a locking part is correspondingly installed on the telescopic support rod 4, and the locking part cooperates with the active end of the electromagnetic switch. When the electromagnetic switch is turned on, the locking part is adsorbed and drives the telescopic support rod 4 to rotate and retract; when the electromagnetic switch is turned off, the locking effect disappears, and the telescopic support rod 4 is driven by the expansion drive member.

[0029] The unfolding driving member for driving the telescopic support rod 4 to rotate is an elastic member, and the elastic member is always in a compressed state. The elastic member can be a spring or a torsion spring 5, etc. The two ends of the elastic member are respectively connected to the lower end surface of the main frame and the side of the telescopic support rod 4, and the elastic member is squeezed between the main frame and the telescopic support rod 4. When the electromagnetic switch is turned on, the external force is removed, and the telescopic support rod 4 rotates and opens under the environment without external force, relying on its own gravity and the elastic force of the elastic member.

[0030] Under the gravity of the telescopic support rod 4 and the limiting effect of the spring installation, the angle between the telescopic support rod 4 and the main frame body is greater than or equal to 90°. Optionally, the angle between the telescopic support rod 4 in the unfolded state and the lower end surface of the main frame body is 90°-145°, such as Figures 1 to 4 As shown; wherein the optimal angle between the telescopic support rod 4 and the main frame in the unfolded state is 90° as Figure 1 and Figure 2 shown.

[0031] When the telescopic support rod 4 forms an obtuse angle with the lower end surface of the main frame, the telescopic support rod 4 will drive the cover cloth 6 to form a cover body with a parallelogram opening at the lower end, such as Figure 3 As shown; correspondingly, the cover frame is as shown Figure 4 shown.

[0032] A positioning part is provided on the side of the telescopic support rod 4 away from the deployment driving member, and the positioning part is used to abut against the main frame to limit the deployment angle of the telescopic support rod 4. In order to stabilize the deployment angle of the telescopic support rod 4, a positioning part is provided on the side of the telescopic support rod 4 away from the elastic member, and the positioning part can be a block protruding from the telescopic support rod 4. Driven by the elastic member, the telescopic support rod 4 rotates until the positioning part abuts against the lower end of the main frame, at which time the telescopic support rod 4 reaches the maximum angle.

[0033] The main frame is a rectangular frame; there are four telescopic support rods 4, which are respectively located at the four corners of the main frame; the four telescopic support rods 4 in the retracted state are folded one by one under the four outer frames 1 of the rectangular frame. The four telescopic support rods 4 in the retracted state are respectively attached to the lower end surface of the outer frame 1 to which they are connected, and a torsion spring 5 is arranged between the telescopic support rod 4 and the outer frame 1 to which they are connected. The two free ends of the torsion spring 5 are respectively fixedly connected to the side walls of the main frame and the telescopic support rod 4. Optionally, the torsion spring 5 and the main frame, and the torsion spring 5 and the telescopic support rod 4 are welded and fixed.

[0034] When the telescopic support rod 4 is in the retracted state, the telescopic support rod 4 is attached to the lower end surface of the main frame and the torsion spring 5 between the telescopic support rod 4 and the main frame is in a compressed state. When the locking switch is turned on, the torsion spring 5 applies a reverse force to the telescopic support rod 4, driving the telescopic support rod 4 to rotate and open.

[0035] Specifically, the main frame includes a rectangular outer frame 1 and an intermediate fixing plate 2, which is located at the center of the outer frame 1 and connected to the outer frame 1 through a connecting rod 3; the connecting rod 3 is located on the side of the intermediate fixing plate 2, or the connecting rod 3 is located at the lower end of the intermediate fixing plate 2. The lifting assembly is connected to the upper end surface of the intermediate fixing plate 2.

[0036] The middle fixing plate 2 is a rectangular plate structure, and the middle fixing plate 2 is provided with connecting rods 3 on the central axis in the length direction and the width direction, and the connecting rods 3 extend radially outward to the inner side of the outer frame 1. The middle fixing plate 2 and the outer frame 1 form an integral main frame body with the help of four connecting rods 3. The driving end of the lifting assembly for driving the main frame body to rise and fall is connected to the center of the middle fixing plate 2.

[0037] The lower end of the main frame is provided with an electrical rail along the length direction and / or the width direction, and a detector and a dry powder fire extinguisher are installed on the electrical rail. Specifically, the electrical rail is arranged along the length direction of the main frame or along the width direction of the main frame. The detectors are selected from smoke detectors and temperature detectors; the dry powder fire extinguisher is selected from suspended ultra-fine dry powder fire extinguishers. When a vehicle is on fire, the smoke detector and the temperature detector sensor are used as signal switches, and after being triggered, the on-off signal is transmitted to the electromagnetic switch, the electromagnetic switch is closed, the locking effect disappears, and the telescopic support rod 4 drives the cover cloth 6 to unfold; then the telescopic component drives the entire cover body to descend until the burning vehicle is completely enclosed; after being enclosed, the dry powder fire extinguisher is synchronously opened, and the fire extinguisher sprays powder to the fire source in the cover body to extinguish the fire. After the temperature sensor detects that the temperature has dropped to a certain value, it is determined that the fire source is extinguished, and the on-off signal is transmitted; first, the dry powder fire extinguisher is closed, and the lifting component drives the entire cover body to rise to the top of the vehicle; then the electromagnetic switch is turned on, driving the telescopic support rod 4 to return to its position, and the cover body is retracted. When the detector detects a fire, the fire extinguishing device can automatically open the cover and cover the outside of the vehicle to form an independent enclosed space and automatically extinguish the fire in the shortest time, realizing automatic fire detection and timely fire control, and can timely block the spread of fire and reduce personal injury; the equipment has a simple structure and can be directly installed in the fireproof area without the need to set up an equipment room, and the system installation process is simple; the fire extinguishing device can be used alone or in conjunction with other fire-fighting equipment to form a key protection area in case of fire, and the cover can be customized according to the actual vehicle size, with a small space occupancy rate.

[0038] The electrical rail is installed at the lower end of the main frame. Specifically, the electrical rail is fixed to the lower end of the middle fixing plate 2 and / or the connecting rod 3.

[0039] During the operation of the dry powder fire extinguisher, the fire point can be determined based on the signal value detected by the temperature detector at different positions, and the dry powder fire extinguisher can be driven to move along the electrical guide rail to approach the fire point, thereby improving the efficiency of fire extinguishing.

[0040] Ultra-fine dry powder fire extinguisher can choose 4KG hanging ultra-fine dry powder fire extinguisher.

[0041] In addition, a light-controlled switch and a wired temperature sensor are installed on the top of the outer side of the cover. The wired temperature sensor can be a normally open and normally closed 12V wired temperature sensor. A variety of monitoring devices can be installed on the inside or outside of the cover, such as smoke sensors, temperature sensors, and temperature-sensing glass balls. When the temperature sensor uses a temperature-sensing glass ball, the dry powder fire extinguisher is turned on at the same time when the temperature-sensing glass ball is heated and actuated.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Local automatic fire extinguishing device, characterized in that: It comprises a cover cloth (6) and a cover body frame, wherein the cover body frame is connected to the cover cloth (6), and the cover body frame comprises a main frame and a plurality of telescopic support rods (4); the upper end of the main frame is suspended and fixed by means of a lifting assembly; the plurality of telescopic support rods (4) are distributed at intervals in the circumference of the main frame, the telescopic support rods (4) are rotatably connected to the lower end surface of the main frame, and an unfolding driving member is provided between the telescopic support rod (4) and the main frame, and the unfolding driving member is arranged on the front side of the telescopic support rod (4) in a clockwise or counterclockwise direction, and the unfolding driving member drives the plurality of telescopic support rods (4) to rotate simultaneously in a clockwise or counterclockwise direction to drive the cover cloth (6) to unfold to form a cover body with an opening downward.

2. The local automatic fire extinguishing device according to claim 1, characterized in that: The unfolding driving member is an elastic member, and the elastic member is always in a compressed state.

3. The local automatic fire extinguishing device according to claim 1, characterized in that: A positioning portion is provided on a side of the telescopic support rod (4) away from the unfolding driving member, and the positioning portion is used to abut against the main frame to limit the unfolding angle of the telescopic support rod (4).

4. The local automatic fire extinguishing device according to claim 1, characterized in that: The included angle between the telescopic support rod (4) and the lower end surface of the main frame in the unfolded state is 90°-145°.

5. The local automatic fire extinguishing device according to claim 1, characterized in that: An electromagnetic switch is also provided between the telescopic support rod (4) and the main frame.

6. The local automatic fire extinguishing device according to claim 1, characterized in that: The main frame is a rectangular frame; there are four telescopic support rods (4), which are respectively located at the four corners of the main frame; the four telescopic support rods (4) in the retracted state are folded one by one under the four outer frames (1) of the rectangular frame.

7. The local automatic fire extinguishing device according to claim 6, characterized in that: The main frame also includes an intermediate fixing plate (2), which is located at the center of the outer frame (1) and is connected to the outer frame (1) via a connecting rod (3); the lifting assembly is connected to the intermediate fixing plate (2).

8. The local automatic fire extinguishing device according to claim 1, characterized in that: An electrical rail is provided at the lower end of the main frame along the length direction and / or the width direction, and a detector and a dry powder fire extinguisher are installed on the electrical rail.

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