Battery fire extinguishing device for pure electric tractor

Abstract

The invention provides a battery fire extinguishing device for a pure electric tractor, which belongs to the technical field of battery fire extinguishment and comprises a water tank, a battery hanger mounted below the water tank and a sleeve box capable of nesting a battery. The bottom of the water tank is provided with a water outlet, the edge of the battery lifting appliance is provided with a lifting pin structure capable of extending laterally, the jacket comprises an outer tank body fixed to the bottom of the water tank and an inner tank body slidably embedded in the lower portion of the outer tank body, a turning plate is hinged to the bottom of the inner tank body, and lower edges are further arranged at the two ends of the inner tank body and can be supported below the turning plate. The device has the beneficial effects that the battery can be quickly and effectively taken out from the tractor and immersed in water, so that the risk and loss caused by a battery fire disaster are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of battery fire extinguishing, and in particular to a battery fire extinguishing device for a pure electric tractor. Background Art

[0002] Thermal runaway of a battery refers to the phenomenon that the heat release chain reaction of a battery cell causes an uncontrollable rise in the battery temperature.

[0003] Once a fire breaks out in a battery system, different extinguishing measures should be taken for each stage of the fire development. The initial stage of the fire is generally the stage with the highest flame temperature during the entire battery fire process. Using an automatic fire extinguishing device to spray a gaseous fire extinguishing agent (such as heptafluoropropane, perfluorohexanone) to reduce the flame intensity of the lithium battery will effectively control the fire range and reduce the fire loss. During this process, it is necessary to pay attention to properly opening the pressure relief port to prevent danger caused by excessive environmental pressure due to the large amount of gas generated. Flooding the battery with water can effectively cool the battery and neutralize the heat threat. Therefore, using a large amount of water or a water-based fire extinguishing agent to extinguish the fire and cool down in the middle and late stages of the fire is a more effective measure. If the on-site conditions permit, the water immersion method can also be used to control the battery fire. Therefore, once abnormal conditions such as high temperature, smoking, and fire occur in the battery of a pure electric tractor, immediately immersing the battery in water is an ideal disposal method.

[0004] However, there are still the following obstacles in the actual operation process: one is how to remove the battery; the other is how to immerse the battery in water at the fastest speed. Summary of the Invention

[0005] By providing a battery fire extinguishing device for a pure electric tractor in an embodiment of the present application, the battery can be quickly and effectively removed from the tractor and immersed in water, thereby reducing the risks and losses caused by the battery fire.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions. A pure electric tractor battery fire extinguishing device includes a water tank, a battery sling mounted below the water tank, and a sleeve box capable of nesting the battery. The bottom of the water tank is provided with a water outlet. The edge of the battery sling is provided with a top pin structure capable of extending laterally. The sleeve box includes an outer box body fixed to the bottom of the water tank and an inner box body slidably nested in the lower part of the outer box body. A flap is hinged to the bottom of the inner box body. Lower edges are further provided at both ends of the inner box body, and the lower edges can be supported under the flap. When a fire occurs in the battery of the tractor, the device can be lifted above the battery by a reach stacker, and then the device is lowered. During the lowering process, the sleeve box can gradually nest the burning battery, and at the same time the battery sling connects the battery. Then the battery is lifted by the reach stacker, so that the battery can be removed. Since the inner box body is slidably matched with the outer box body, and a flap is hinged to the bottom of the inner box body, after the battery is removed, the battery is completely nested by the sleeve box. Finally, the water in the water tank can submerge the battery to achieve rapid fire extinguishing and cooling.

[0007] As a further improvement of the above solution, the top pin structure includes a seat body and a pin body. The seat body is fixed inside the frame of the battery sling. A spring is provided inside the seat body, and the spring abuts against one end of the pin body. The other end of the pin body has an inclined surface and extends out of the frame edge of the battery sling. Thus, the automatic expansion and contraction of the pin body can be realized, enabling the battery sling to connect with the battery more quickly.

[0008] As a further improvement of the above solution, a reinforcing beam is arranged inside the water tank. The bottom of the reinforcing beam is welded and fixed to the inner bottom surface of the water tank. The outer bottom surface of the water tank is respectively fixed to the four corners of the battery sling through four vertical connecting columns.

[0009] As a further improvement of the above solution, an electric control valve is installed at the water outlet.

[0010] As a further improvement of the above solution, a water inlet is provided at one end or above the water tank.

[0011] As a further improvement of the above solution, through holes for the rotating pins of the reach stacker to pass through are provided at the four corners of the water tank. A hinge support is provided at the bottom of the water tank corresponding to each through hole. Legs are rotatably installed at the lower ends of the hinge supports. A torsion spring is installed at the connection between the legs and the hinge supports. Thus, when the device needs to be placed on the ground, the legs can be unfolded to provide stable support for the device.

[0012] As a further improvement of the above solution, a locking pin is also slidably installed at the bottom of the water tank, and the locking pin extends within a plane parallel to the bottom of the water tank; two dial plates are fixed to the outer periphery of one end of the locking pin, the dial plates are located below the through hole and can contact the rotating pin of the reach stacker, and the other end of the locking pin can cooperate with one side of the support leg. A locking plate is fixed to one side of the support leg, and a locking hole for the locking pin to pass through is provided on the locking plate; thus, through the cooperation of the locking pin and the rotating pin of the reach stacker, the automatic unfolding and locking of the support leg can be realized. When the device needs to be placed on the ground, the rotating pin of the reach stacker drives the locking pin to move, so that the locking pin withdraws from the locking hole of the locking plate, thereby releasing the locking of the support leg and enabling the support leg to be smoothly unfolded to provide stable support for the device.

[0013] As a further improvement of the above solution, a pin seat for cooperating with the locking pin is fixed to the bottom of the water tank, and a hole for the locking pin to pass through is provided on the pin seat. The locking pin slidably penetrates through the hole of the pin seat, and a retaining plate is also fixed to the outer periphery of one end of the locking pin. A support spring is provided between the retaining plate and the pin seat; when the locking pin moves under the drive of the rotating pin of the reach stacker and withdraws from the locking hole of the locking plate, the support spring can provide a reverse elastic force to enable the locking pin to automatically return to its initial position. In this way, when the support leg needs to be re-locked, the locking pin can accurately insert into the locking hole.

[0014] It can be seen from the above technical solutions that the present invention has at least the following technical effects or advantages: 1. When a fire occurs in the battery of the tractor, the device can be lifted above the battery by the reach stacker and then lowered. During the lowering process, the nested box can gradually nest the burning battery, and at the same time, the battery sling connects the battery. Then, the battery is lifted by the reach stacker to remove the battery. Since the inner box body and the outer box body are slidably matched, and a flap is hinged at the bottom of the inner box body, after the battery is removed, the battery is completely nested by the nested box, and finally the water in the water tank can submerge the battery to achieve rapid fire extinguishing and cooling.

[0015] 2. Since a spring is provided in the seat body of the top pin structure, the spring abuts against one end of the pin body, and the other end of the pin body has an inclined surface. Therefore, the elastic force of the spring enables the pin body to automatically pop out and lock the battery, realizing the rapid connection and lifting of the battery. At the same time, the inclined surface design facilitates the smooth contact and engagement of the pin body with the battery frame, improving the efficiency and reliability of battery lifting.

[0016] 3. A locking pin is also slidably installed at the bottom of the water tank. Through the cooperation of the locking pin and the rotating pin of the reach stacker, the automatic unfolding and locking of the support leg can be realized. When the device needs to be placed on the ground, the rotating pin of the reach stacker drives the locking pin to move, so that the locking pin withdraws from the locking hole of the locking plate, thereby releasing the locking of the support leg and enabling the support leg to be smoothly unfolded to provide stable support for the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solution of the present invention, the accompanying drawings required in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings: Figure 1 Structural schematic diagram of the whole of the present invention (hiding the nested box); Figure 2 Structural schematic diagram after the battery sling hoists the battery; Figure 3 Structural schematic diagram of the whole of the present invention (not hiding the nested box); Figure 4 Installation schematic diagram of the outrigger in the present invention.

[0018] Explanation of reference numerals: 1, water tank; 2, battery sling; 3, outer box body; 4, inner box body; 5, flap; 6, lower edge; 7, seat body; 8, pin body; 9, connecting column; 10, water outlet; 11, hinge support; 12, outrigger; 13, locking pin; 14, dial; 15, locking plate; 16, pin seat; 17, retaining piece; 18, support spring. Specific embodiments In order to enable those skilled in the art to better understand the technical solution in the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments in this patent, other embodiments obtained by those of ordinary skill in the art without creative efforts all belong to the scope of protection of this patent.

[0019] The present invention discloses a pure electric tractor battery fire extinguishing device, the structure of which includes a water tank 1, a battery sling 2 and a nested box. Among them, the water tank 1 is used to store fire extinguishing water, and a water outlet 10 is provided at the bottom thereof, and the water outlet 10 is controlled by an electric control valve. Through holes for the rotation pins of the reach stacker to pass through are provided at the four corners of the water tank 1, which is convenient for the hoisting and moving of the device. The battery sling 2 is installed below the water tank 1, and the nested box is nested outside the battery sling.

[0020] When a fire occurs in the battery of the tractor, the device can be hoisted above the battery by the reach stacker, and then the device is lowered. During the lowering process, the nested box can gradually nest the burning battery, and at the same time the battery sling connects the battery. Then the battery is lifted by the reach stacker. After being lifted, the battery is completely nested by the nested box. Finally, the water outlet at the bottom of the water tank 1 is opened, and the water in the water tank 1 can submerge the battery, realizing rapid fire extinguishing and cooling.

[0021] In this embodiment, as Figure 1As shown in the figure, the outer bottom surface of the water tank 1 is fixedly connected to the four corners of the battery sling 2 through four vertical connecting columns 9. Thus, by applying an upward force to the water tank with a front crane, the battery can be lifted. It should be understood that a water inlet is provided at one end or above the water tank 1 to facilitate the water injection operation of the device. A reinforcing beam is also provided inside the water tank 1, and the bottom of the reinforcing beam is fixedly welded to the inner bottom surface of the water tank 1. The structural strength of the water tank 1 can be improved through the reinforcing beam, effectively preventing the water tank from deforming during the water injection and fire extinguishing processes.

[0022] Specifically in this embodiment, as Figure 2 shown, a top pin structure is provided at the edge of the battery sling 2. The top pin structure includes a seat body 7 and a pin body 8. Among them, the seat body 7 is fixed inside the frame of the battery sling 2, and a spring is provided inside it. The spring abuts against one end of the pin body 8, and the other end of the pin body 8 has an inclined surface and extends out of the frame edge. During the downward movement of the battery sling 2, the inclined surface of the pin body 8 contacts the upper frame of the battery, causing the spring inside the seat body to contract. As the battery sling 2 continues to fall, the pin body 8 pops outwards to clamp the battery, and then the battery can be lifted by the front crane. Thus, the battery can be lifted through the battery sling 2.

[0023] As Figure 3 shown, the nested box includes an outer box body 3 and an inner box body 4. The upper end of the outer box body 3 is fixedly connected to the bottom of the water tank 1, and the inner box body 4 is slidably embedded in the lower part of the outer box body 3. A flap 5 is hinged at the bottom of the inner box body 4, and lower edges 6 are provided at both ends of the bottom of the inner box body 4. The lower edges 6 can be supported under the flap 5. It should be understood that the sum of the heights of the outer box body 3 and the inner box body 4 is greater than the sum of the height of the battery and the height of the connecting column 9. Thus, after the battery sling 2 hoists the battery, the inner box body 4 of the nested box can slide under the battery, causing the flap 5 to flip above the lower edge, thereby realizing the nesting of the battery. When the battery is completely nested, the water outlet can be opened through an electric control valve to completely immerse the battery in water, reducing the fire risk.

[0024] Embodiment 2 This embodiment is basically the same as Embodiment 1, except that in this embodiment, the stability of the device is further optimized on the basis of the above embodiment. As Figure 4 shown, a hinge support 11 is provided at the bottom of the water tank 1. A support leg 12 is rotatably installed at the lower end of the hinge support 11, and a torsion spring is installed at the connection between the support leg 12 and the hinge support 11. Thus, the folding and unfolding of the support leg 12 can be realized. When the support leg 12 is unfolded, it can provide support for the device to facilitate placing the device on the ground.

[0025] Specifically, in this embodiment, a locking pin 13 is also slidably installed at the bottom of the water tank 1. Two paddles 14 are fixed to the outer periphery of one end of the locking pin 13. The paddles 14 are located below the through holes of the water tank 1 and can contact the rotating pin of the reach stacker. The other end of the locking pin 13 cooperates with a locking plate 15 on one side of the support leg 12. The locking plate 15 is provided with a locking hole for the locking pin 13 to pass through. When the locking pin 13 is inserted into the locking hole of the locking plate 15, the support leg 12 can be kept in a folded state. When the rotating pin drives the locking pin to move, the locking pin 13 slides out of the locking hole, and the locking of the locking plate 15 can be released, thereby realizing the unfolding of the support leg 12.

[0026] In addition, a pin seat 16 cooperating with the locking pin 13 is fixed to the bottom of the water tank 1. The pin seat 16 is provided with a hole for the locking pin 13 to pass through. A retaining piece 17 is also fixed to the outer periphery of one end of the locking pin 13. A support spring 18 is provided between the retaining piece 17 and the pin seat 16, and the reset of the locking pin can be realized through the support spring.

[0027] The using process of the present invention is as follows: When a fire occurs in the battery of the pure electric tractor, the device is lifted above the battery by the reach stacker and lowered. During the lowering process, the nested box gradually nests the burning battery. At the same time, the battery lifting device is connected to the battery through the top pin structure. The pin body in the top pin structure contacts and clamps the battery frame under the action of the spring, realizing the lifting of the battery. Subsequently, the inner box body of the nested box slides to the lower part of the battery, and the flap flips to above the lower edge, completing the nesting of the battery. Finally, the water outlet at the bottom of the water tank is opened, and the water in the water tank submerges the battery, realizing rapid fire extinguishing and cooling. When the device needs to be placed on the ground, the rotating pin of the reach stacker rotates, driving the locking pin 13 to slide and withdraw from the locking hole of the locking plate 15, and the support legs can be unfolded.

[0028] In the description of the present invention, the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings, and is only for describing the present invention rather than requiring the present invention to be constructed or operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. The "connected" and "connected" in the present invention should be understood in a broad sense. For example, it can be a connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations.

[0029] The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein can be implemented in their embodiments without departing from the spirit or scope of the present invention. Thus, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An extinguishing device for a pure electric tractor battery fire, characterized in that, It includes a water tank (1), a battery sling (2) installed below the water tank (1), and a nested box capable of nesting the battery; the bottom of the water tank (1) is provided with a water outlet (10), the edge of the battery sling (2) is provided with a top pin structure capable of protruding laterally, the nested box includes an outer box body (3) fixed to the bottom of the water tank (1) and an inner box body (4) slidably embedded in the lower part of the outer box body (3), a flap (5) is hinged to the bottom of the inner box body (4), and lower edges (6) are further provided at both ends of the inner box body (4), and the lower edges (6) can be supported under the flap (5).

2. The fire extinguishing device for the battery of a pure electric tractor according to claim 1, characterized in that, The top pin structure includes a seat body (7) and a pin body (8), the seat body (7) is fixed inside the frame of the battery sling (2), a spring is arranged inside the seat body (7), the spring abuts against one end of the pin body (8), and the other end of the pin body (8) has an inclined surface and protrudes from the edge of the frame of the battery sling (2).

3. The pure electric tractor battery fire extinguishing device according to claim 1, characterized in that, Reinforcing beams are arranged inside the water tank (1), the bottom of the reinforcing beam is welded and fixed to the inner bottom surface of the water tank (1), and the outer bottom surface of the water tank (1) is fixed to the four corners of the battery sling (2) through four vertical connecting columns (9) respectively.

4. The fire extinguishing device for the battery of a pure electric tractor according to claim 1, wherein An electric control valve is installed at the water outlet (10).

5. The battery fire extinguishing device for a pure electric tractor according to claim 1, characterized in that, A water inlet is provided at one end or above the water tank (1).

6. A pure electric tractor battery fire extinguishing device according to any one of claims 1 to 5, characterized in that, Through holes for the rotating pins of the reach stacker to pass through are provided at the four corners of the water tank (1), hinge supports (11) are provided at the bottom of the water tank (1) corresponding to each through hole, legs (12) are rotatably installed at the lower ends of the hinge supports (11), and torsion springs are installed at the connection between the legs (12) and the hinge supports (11).

7. The fire extinguishing device for the battery of a pure electric tractor according to claim 6, characterized in that, A locking pin (13) is also slidably installed at the bottom of the water tank (1), and the locking pin (13) extends in a plane parallel to the bottom of the water tank (1); two sliders (14) are fixed to the outer periphery of one end of the locking pin (13), the sliders (14) are located below the through hole and can contact the rotating pin of the reach stacker, the other end of the locking pin (13) can cooperate with one side of the leg (12), a locking plate (15) is fixed to one side of the leg (12), and a locking hole for the locking pin (13) to pass through is provided on the locking plate (15).

8. A pure electric tractor battery fire extinguishing device according to claim 7, characterized in that, A pin seat (16) cooperating with the locking pin (13) is fixed to the bottom of the water tank (1), a hole for the locking pin (13) to pass through is provided on the pin seat (16), the locking pin (13) slidably penetrates through the hole of the pin seat (16), a retaining piece (17) is further fixed to the outer periphery of one end of the locking pin (13), and a support spring (18) is arranged between the retaining piece (17) and the pin seat (16).

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