Special suspension type fire extinguisher for lithium battery

Abstract

The utility model discloses a special suspension type fire extinguisher for a lithium battery, which comprises a fire extinguisher body, the fire extinguisher body is provided with an inflation mechanism, when a fire disaster occurs, a certain amount of color expansion liquid sensitive to heat is filled in a temperature sensing glass ball, when the fire disaster occurs, the ambient temperature rises, the liquid is heated to expand, and the pressure rises; when a preset value is reached, the glass ball bursts. When the sealing column is not supported and falls off, the fire extinguisher is filled with a fire extinguishing agent special for the lithium battery, and the fire extinguishing agent is sprayed out from the foam water mist spray head, so that the fire hazard of the lithium battery can be effectively extinguished, the spraying and covering range is enlarged, and the fire extinguishing device has a good lithium battery fire extinguishing effect, is convenient to install and has high adaptability. Compared with a traditional dry powder extinguishing agent, the fire extinguishing agent has the advantages of being high in fire extinguishing efficiency, long in fire extinguishing time, non-toxic, harmless, convenient to clean and the like, and especially aims at fire disasters of electric bicycles for lithium batteries.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting, in particular to a suspended fire extinguisher dedicated to lithium batteries. Background Art

[0002] At present, public places such as communities in society are equipped with management facilities for the centralized storage of electric bicycles, but this has invisibly increased the probability of electric bicycle fires, easily causing a situation where the fire spreads to the entire camp, posing a huge safety hazard.

[0003] Most electric bicycle parking areas are now equipped with suspended dry powder fire extinguishers, but market verification has shown that these fire extinguishers cannot effectively extinguish electric bicycle fires.

[0004] Therefore, a special hanging fire extinguisher for lithium batteries is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a lithium battery-specific hanging fire extinguisher, which is activated by temperature sensing and sprays a lithium battery-specific fire extinguishing agent to extinguish the fire, thereby effectively extinguishing the fire and solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a lithium battery-specific hanging fire extinguisher, comprising a fire extinguisher body, an inflating mechanism is provided on the fire extinguisher body, a pressure regulating mechanism and a pressure observing mechanism are provided on the inflating structure, and a spray mechanism is provided on the pressure regulating mechanism;

[0007] The inflation mechanism comprises a fixing seat, which is mounted on the bottom side of the fire extinguisher body, and an air inlet hole is opened on the fixing seat, and a sealing screw rod is threadedly mounted on the inner wall of the air inlet hole;

[0008] The pressure regulating mechanism comprises a connecting column which is mounted on a fixing seat and has a circular groove on which a sealing column is slidably mounted. A temperature-sensitive glass ball is mounted on the bottom side of the sealing column, and symmetrical protrusions are mounted on the bottom side of the temperature-sensitive glass ball.

[0009] Preferably, two support rods are installed on the bottom side of the connecting column, and limit plates are installed on the two support rods. An adjusting screw is threadedly installed on the limit plate, and the top end of the adjusting screw contacts the bottom side of the symmetrical protrusion.

[0010] Preferably, two installation grooves are provided on the sealing column, and rubber sealing pads are installed on the inner walls of the two installation grooves, and the two rubber sealing pads are in contact with the inner wall of the circular groove.

[0011] Preferably, the spray mechanism comprises a mounting hole, a mounting hole is provided on the left side of the connecting column, an L-shaped elbow is installed on the inner wall of the mounting hole, and the L-shaped elbow is adapted to the sealing column.

[0012] Preferably, a nozzle joint is threadedly mounted on the inner wall of the other end of the L-shaped elbow, and a foam water mist nozzle is threadedly mounted on the inner wall of the bottom side of the nozzle joint.

[0013] Preferably, the pressure observation mechanism includes a connecting head, which is mounted on a fixing seat, and an inflation channel is provided on the connecting head and communicated with the fixing seat.

[0014] Preferably, a screw sleeve is threadedly installed on the connecting head, a boss is installed on the inner wall of the screw sleeve, the boss is connected to the inner wall of the connecting head, and a pressure gauge is threadedly installed on the bottom side of the screw sleeve.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] In the utility model, when a fire occurs, a certain amount of heat-sensitive colored expansion liquid is filled inside the temperature-sensitive glass ball. When the fire occurs, the surrounding temperature rises, and the liquid expands due to heat. When the pressure reaches a predetermined value, the glass ball bursts. The sealing column loses support and falls off. The fire extinguisher is filled with a special fire extinguishing agent for lithium batteries. The fire extinguishing agent is sprayed from the foam water mist nozzle, which can effectively extinguish lithium battery fires, increase the spraying and coverage range, and have a good lithium battery fire extinguishing effect. It is easy to install and has high adaptability. The utility model uses a water-based special fire extinguishing agent for lithium batteries. Compared with traditional dry powder fire extinguishing agents, it has the advantages of high fire extinguishing efficiency, long fire extinguishing time, non-toxic and harmless, and easy to clean, especially for lithium battery electric bicycle fires. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the expanded structure of the utility model;

[0020] Figure 4 For the utility model Figure 3 Schematic diagram of the structure of part A;

[0021] In the figure: 1. Fire extinguisher body; 2. Fixing seat; 21. Sealing screw rod; 22. Air inlet; 3. Connecting column; 31. Symmetrical protrusion; 32. Support rod; 33. Limiting plate; 34. Sealing column; 35. Temperature sensing glass ball; 36. Adjusting screw; 37. Mounting slot; 38. Rubber sealing pad; 4. Connecting head; 41. Screw sleeve; 42. Pressure gauge; 43. Boss; 5. Mounting hole; 51. L-shaped elbow; 52. Nozzle joint; 53. Foam water mist nozzle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example: See Figure 1-4 The utility model provides a technical solution: a lithium battery-specific hanging fire extinguisher, comprising a fire extinguisher body 1, an air charging mechanism is provided on the fire extinguisher body 1, a pressure regulating mechanism and a pressure observing mechanism are provided on the air charging structure, and a spray mechanism is provided on the pressure regulating structure;

[0024] In order to enable the fire extinguisher body 1 to be recycled, an air charging mechanism is arranged on the fire extinguisher body 1, specifically including a fixing seat 2, the fixing seat 2 is installed on the bottom side of the fire extinguisher body 1, an air inlet hole 22 is opened on the fixing seat 2, and a sealing screw rod 21 is threadedly installed on the inner wall of the air inlet hole 22. Through the arrangement of the sealing screw rod 21 on the fixing seat 2 and the air inlet hole 22, it can be sealed during use, and after use, the fire extinguisher body 1 is inflated through the air inlet hole 22 for secondary filling;

[0025] In order to effectively control the temperature-sensitive glass ball 35 according to the temperature, so as to automatically extinguish the fire, a pressure regulating mechanism is arranged on the fixing seat 2, specifically including a connecting column 3, the connecting column 3 is installed on the fixing seat 2, a circular groove is provided on the connecting column 3, a sealing column 34 is slidably installed on the inner wall of the circular groove, a temperature-sensitive glass ball 35 is installed on the bottom side of the sealing column 34, a symmetrical protrusion 31 is installed on the bottom side of the temperature-sensitive glass ball 35, two supporting rods 32 are installed on the bottom side of the connecting column 3, a limiting disk 33 is installed on the two supporting rods 32, an adjusting screw 36 is threadedly installed on the limiting disk 33, the top of the adjusting screw 36 is in contact with the bottom side of the symmetrical protrusion 31, two mounting grooves 37 are provided on the sealing column 34, rubber sealing pads 38 are installed on the inner walls of the two mounting grooves 37, and the two rubber sealing pads 38 are in contact with the inner wall of the circular groove.

[0026] In order to conveniently spray the water-based lithium battery-specific fire extinguishing agent in the fire extinguisher body 1, a spray mechanism is arranged on the connecting column 3, specifically including a mounting hole 5. A mounting hole 5 is opened on the left side of the connecting column 3, and an L-shaped elbow 51 is installed on the inner wall of the mounting hole 5. The L-shaped elbow 51 is adapted to the sealing column 34, and a nozzle joint 52 is threadedly installed on the inner wall of the other end of the L-shaped elbow 51, and a foam water mist nozzle 53 is threadedly installed on the inner wall of the bottom side of the nozzle joint 52.

[0027] In order to conveniently observe the pressure in the fire extinguisher body 1 in real time, a pressure observation mechanism is arranged on the fixing seat 2, specifically including a connecting head 4, which is installed on the fixing seat 2, and an inflation channel is opened on the connecting head 4 and connected to the fixing seat 2, a screw sleeve 41 is threadedly installed on the connecting head 4, a boss 43 is installed on the inner wall of the screw sleeve 41, and the boss 43 is connected to the inner wall of the connecting head 4, and a pressure gauge 42 is threadedly installed on the bottom side of the screw sleeve 41.

[0028] The working principle is as follows: before use, fix the fire extinguisher body 1 in a suitable position, and then manually turn the adjusting screw 36 on the limit plate 33 to move up and down, the movement of the adjusting screw 36 drives the symmetrical protrusion 31 to move, the movement of the symmetrical protrusion 31 drives the temperature-sensitive glass ball 35 to move, and the movement of the temperature-sensitive glass ball 35 drives the sealing column 34 to move in the connecting column 3, so that the internal pressure release of the fire extinguisher can be conveniently adjusted and restricted. At the same time, the pressure gauge 42 is used to check the pressure inside the fire extinguisher body 1 in real time. When a fire occurs, when the surrounding temperature rises, when the temperature is transferred to the temperature-sensitive glass ball 35, the heat-sensitive glass ball 35 in the temperature-sensitive glass ball 35 is When the sensitive colored expansion liquid is heated and expanded, the pressure in the temperature-sensitive glass ball 35 increases. When it reaches a predetermined value, the glass ball bursts under pressure. At this time, the sealing column 34 loses support and falls downward, so that the sealing column 34 no longer seals the L-shaped elbow 51, so that the lithium battery-specific fire extinguishing agent in the fire extinguisher body 1 can flow into the L-shaped elbow 51 and be sprayed out through the foam water mist nozzle 53 on the L-shaped elbow 51, which can effectively extinguish the lithium battery fire. After use, when it is observed through the pressure gauge 42 that the pressure value in the fire extinguisher body 1 is low, the fire extinguisher body 1 can be inflated through the fixing seat 2 to perform a secondary filling of the fire extinguisher body 1.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lithium battery-specific hanging fire extinguisher, characterized in that: It comprises a fire extinguisher body (1), the fire extinguisher body (1) is provided with an inflation mechanism, the inflation structure is provided with a pressure regulating mechanism and a pressure observation mechanism, and the pressure regulating mechanism is provided with a spray mechanism; The inflation mechanism comprises a fixing seat (2), the fixing seat (2) being mounted on the bottom side of the fire extinguisher body (1), the fixing seat (2) being provided with an air inlet hole (22), and a sealing screw rod (21) being threadedly mounted on the inner wall of the air inlet hole (22); The pressure regulating mechanism comprises a connecting column (3), the connecting column (3) being mounted on a fixing seat (2), a circular groove being formed on the connecting column (3), a sealing column (34) being slidably mounted on the inner wall of the circular groove, a temperature-sensitive glass ball (35) being mounted on the bottom side of the sealing column (34), and a symmetrical protrusion (31) being mounted on the bottom side of the temperature-sensitive glass ball (35).

2. A lithium battery-specific hanging fire extinguisher according to claim 1, characterized in that: Two support rods (32) are mounted on the bottom side of the connecting column (3), a limit plate (33) is mounted on the two support rods (32), an adjusting screw (36) is threadedly mounted on the limit plate (33), and the top end of the adjusting screw (36) contacts the bottom side of the symmetrical protrusion (31).

3. A lithium battery-specific hanging fire extinguisher according to claim 1, characterized in that: The sealing column (34) is provided with two installation grooves (37), and rubber sealing pads (38) are installed on the inner walls of the two installation grooves (37), and the two rubber sealing pads (38) are in contact with the inner wall of the circular groove.

4. A lithium battery-specific hanging fire extinguisher according to claim 1, characterized in that: The spray mechanism comprises a mounting hole (5), the mounting hole (5) is opened on the left side of the connecting column (3), an L-shaped curved pipe (51) is installed on the inner wall of the mounting hole (5), and the L-shaped curved pipe (51) is matched with the sealing column (34).

5. A lithium battery-specific hanging fire extinguisher according to claim 4, characterized in that: A nozzle connector (52) is threadedly mounted on the inner wall of the other end of the L-shaped elbow (51), and a foam water mist nozzle (53) is threadedly mounted on the inner wall of the bottom side of the nozzle connector (52).

6. A lithium battery-specific hanging fire extinguisher according to claim 1, characterized in that: The pressure observation mechanism comprises a connecting head (4), which is mounted on a fixing seat (2), and an air charging channel is provided on the connecting head (4) and is connected to the fixing seat (2).

7. A lithium battery-specific hanging fire extinguisher according to claim 6, characterized in that: A screw sleeve (41) is threadedly mounted on the connector (4), a boss (43) is mounted on the inner wall of the screw sleeve (41), the boss (43) is connected to the inner wall of the connector (4), and a pressure gauge (42) is threadedly mounted on the bottom side of the screw sleeve (41).

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