A rotary injection mechanism for new energy vehicle fire fighting

Abstract

The utility model discloses a rotary injection mechanism for new energy vehicle fire fighting belongs to fire fighting equipment technical field, solved the single of existing vehicle bottom fire fighting device deployment angle, cannot dynamic regulation, the problem of big and complex operation of storage volume. The mechanism includes fire extinguishing agent delivery unit, transmission control unit and rotary drive unit. Fire extinguishing agent delivery unit is communicated through flexible connecting pipe and is even opened to the pharmacy hole of multiple fire branch pipes, realizes the quick delivery and spraying of fire extinguishing agent, transmission control unit adopts symmetrical rack to push the pole, and the displacement of linear direction is accurately transferred, and rotary drive unit is engaged through drive rack and multistage transmission gear, and the fire branch pipe is driven according to the synchronous deployment or contraction of setting angle. The utility model discloses the radial coverage layout after deployment, can multistage positioning, and the volume is greatly reduced after contraction, and the unity of multi -angle continuous regulation, quick folding storage and high -efficient fire extinguishing, improves the fire fighting efficiency of new energy automobile chassis and the operation convenience.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting equipment technology, and in particular to a rotary spray mechanism for fire fighting of new energy vehicles, which is suitable for rapid extinguishing of fires in the chassis of power batteries of new energy vehicles. Background Technology

[0002] New energy vehicle power battery packs are typically laid flat under the vehicle chassis. A fire in this location can trigger a chain reaction of thermal runaway, with flame temperatures reaching over 800°C and a high risk of reignition. Traditional firefighting equipment uses side-spraying methods, but the extinguishing agent is obstructed by chassis deflectors, crash beams, and other structures, resulting in a limited effective extinguishing dose reaching the battery compartment. While existing under-vehicle fire extinguishing devices can partially improve coverage, they generally suffer from a single deployment angle and an inability to dynamically adjust to the fire's intensity, leading to low extinguishing efficiency.

[0003] While existing under-vehicle fire suppression systems can partially improve coverage, they still suffer from the following drawbacks: First, the deployed fire suppression units cannot be fixed at specific angles, leading to wasted extinguishing agents; second, their complex mechanical structures rely on external power, making operation cumbersome; and third, their large storage volume hinders rapid deployment. The root cause lies in the fact that current technology fails to organically combine efficient fire suppression with a portable structure, lacking a convenient rotation and deployment mechanism. Therefore, there is an urgent need for a fire suppression system that combines multi-angle spraying with rapid storage capabilities. Utility Model Content

[0004] Based on the above analysis, the present invention aims to provide a rotary spray mechanism for fire fighting of new energy vehicles, in order to solve the problems of existing vehicle under-vehicle fire fighting devices having a single deployment angle, lack of dynamic adjustment, large storage volume, and complex operation.

[0005] The objective of this utility model is mainly achieved through the following technical solutions:

[0006] A rotary spraying mechanism for fire fighting in new energy vehicles includes an extinguishing agent delivery unit, a transmission control unit, and a rotary drive unit. The extinguishing agent delivery unit includes an inlet pipe, a fire branch pipe, and an outlet port. The fire branch pipe is connected by a flexible connecting pipe and has outlet ports evenly spaced. The transmission control unit includes a first and second geared push rod symmetrically arranged about the inlet pipe. The rotary drive unit includes a flexible connecting pipe, a transmission gear, a drive gear, and a connecting assembly. The drive gear meshes with the transmission gear, and the connecting assembly connects the transmission gear and the fire branch pipe. The first and second geared push rods can drive the drive gear to move, and through the meshing of the drive gear and the transmission gear, the fire branch pipe is synchronously extended or retracted.

[0007] Furthermore, the transmission gears include first to sixth transmission gears, and the first to third transmission gears and the fourth to sixth transmission gears are symmetrically arranged about the drug inlet pipe.

[0008] Furthermore, the fire branch pipe includes the first to the seventh fire branch pipe, and the first to the third fire branch pipe and the fourth to the sixth fire branch pipe are symmetrical about the seventh fire branch pipe.

[0009] Furthermore, the first transmission gear drives the first fire branch pipe to rotate, the second transmission gear drives the second fire branch pipe to rotate, the third transmission gear drives the third fire branch pipe to rotate, the fourth transmission gear drives the fourth fire branch pipe to rotate, the fifth transmission gear drives the fifth fire branch pipe to rotate, the sixth transmission gear drives the sixth fire branch pipe to rotate, and the seventh fire branch pipe remains stationary.

[0010] Furthermore, when the drive toothed rail moves in a straight line, the fire branch pipe at the end away from the drug inlet pipe expands, and the fire branch pipe at the end close to the drug inlet pipe retracts.

[0011] Furthermore, the axial movement direction of the first and second toothed rail push rods is parallel to the direction of movement of the driving toothed rail.

[0012] Furthermore, the first to seventh fire branch pipes are connected by flexible connecting pipes to form a fire extinguishing agent flow channel.

[0013] Furthermore, the discharge holes are evenly distributed on the surface of the fire branch pipe.

[0014] Furthermore, the unfolding angle of the fire branch pipe is controlled by the displacement of the drive toothed rail; the first and fourth fire branch pipes can unfold to 0°-45°, the second and fifth fire branch pipes can unfold to 45°-90°, and the third and sixth fire branch pipes can unfold to 90°-135°.

[0015] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0016] (1) The rotary spray mechanism of this utility model realizes the synchronous deployment and retraction of fire branch pipes through the cooperation of symmetrical toothed rail push rod and multi-stage transmission gear. After deployment, it forms a radial coverage layout, which can be positioned in multiple stages, significantly improving the coverage range of the extinguishing agent and the fire-fighting efficiency.

[0017] (2) This utility model uses a flexible connecting pipe to connect the fire branch pipe and combines it with the linear displacement control of the drive gear rail to realize the multi-angle continuous adjustment and quick folding and storage of the fire branch pipe, which solves the problems of the existing device having a single unfolding angle and large storage volume.

[0018] (3) This utility model has a compact structure and is easy to operate. The fire branch pipe can be expanded and retracted by simple linear push without relying on complex external power drive, which reduces the difficulty of operation and maintenance costs.

[0019] (4) The fire branch pipe of this utility model can be dynamically adjusted in terms of unfolding angle, which can realize wide-area coverage fire extinguishing and concentrated spraying for fire source, significantly improving the flexibility and adaptability of fire extinguishing operations.

[0020] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing this invention. The objectives and other advantages of this invention can be realized and obtained from the details specifically pointed out in the text and accompanying drawings. Attached Figure Description

[0021] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0022] Figure 1 This is a schematic diagram of the overall structure of a specific embodiment;

[0023] Figure 2 This is a schematic diagram of the structure of the rotary drive unit in a specific embodiment;

[0024] Figure 3 This is a schematic diagram of the fire branch pipe after it has been fully deployed in a specific embodiment.

[0025] Figure label:

[0026] 1-Extinguishing agent delivery unit; 11-Inlet pipe; 12-Fire branch pipe; 121-First fire branch pipe; 122-Second fire branch pipe; 123-Third fire branch pipe; 124-Fourth fire branch pipe; 125-Fifth fire branch pipe; 126-Sixth fire branch pipe; 127-Seventh fire branch pipe; 13-Outlet port; 2-Transmission control unit; 21-First geared push rod; 22-Second geared push rod; 3-Rotary drive unit; 31-Flexible connecting pipe; 32-Transmission gear; 321-First transmission gear; 322-Second transmission gear; 323-Third transmission gear; 324-Fourth transmission gear; 325-Fifth transmission gear; 326-Sixth transmission gear; 33-Drive geared rail; 34-Connecting assembly. Detailed Implementation

[0027] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0028] A specific embodiment of this utility model is as follows: Figure 1 As shown, a rotary spraying mechanism for fire fighting of new energy vehicles is disclosed, including a fire extinguishing agent delivery unit 1, a transmission control unit 2, and a rotary drive unit 3. The fire extinguishing agent delivery unit 1 provides fire extinguishing agent delivery to the rotary spraying mechanism, while the transmission control unit 2 and the rotary drive unit 3 control the expansion and contraction of the fire branch pipe 12 of the fire extinguishing agent delivery unit 1, achieving a multi-stage rotary fire fighting range.

[0029] The extinguishing agent delivery unit 1 is equipped with an inlet pipe 11, a fire branch pipe 12, and an outlet port 13. For example... Figure 3 As shown, there are three or more fire branch pipes 12. Specifically, in this embodiment, the fire branch pipes 12 include a first fire branch pipe 121, a second fire branch pipe 122, a third fire branch pipe 123, a fourth fire branch pipe 124, a fifth fire branch pipe 125, a sixth fire branch pipe 126, and a seventh fire branch pipe 127. The first fire branch pipe 121, the fourth fire branch pipe 124, the second fire branch pipe 122, the fifth fire branch pipe 125, the third fire branch pipe 123, and the sixth fire branch pipe 126 are symmetrical about the seventh fire branch pipe 127. Adjacent fire branch pipes 12 are connected by flexible connecting pipes 31 of the rotation drive unit 3 to achieve folding and unfolding. The extinguishing agent enters from the inlet pipe 11, which is connected to one end of the seventh fire branch pipe 127. It flows through the unfolded fire branch pipe 12. Each fire branch pipe 12 has an outlet hole 13, from which the extinguishing agent is evenly sprayed to extinguish the fire.

[0030] The transmission control unit 2 includes a first toothed rail push rod 21 and a second toothed rail push rod 22. The first toothed rail push rod 21 and the second toothed rail push rod 22 are symmetrical about the drug inlet pipe 11. The end of the first toothed rail push rod 21 away from the fire branch pipe 12 is used to control the rotary spraying mechanism; the end of the first toothed rail push rod 21 near the fire branch pipe 12 forms a branch connection structure and extends to the area of ​​the rotary drive unit 3. When the first toothed rail push rod 21 is driven to make a linear displacement, the end of the first toothed rail push rod 21 away from the fire branch pipe 12 is connected to the drive toothed rail 33 of the rotary drive unit 3, thereby linking the first fire branch pipe 121, the second fire branch pipe 122 and the third fire branch pipe 123 to realize the synchronous unfolding or folding of one side of the fire branch pipe 12; similarly, one side of the second toothed rail push rod 22 is symmetrical to the first toothed rail push rod 21.

[0031] The rotary drive unit 3 includes a flexible connecting pipe 31, a transmission gear 32, a drive gear rail 33, and a connecting assembly 34. The two ends of the flexible connecting pipe 31 are respectively connected to the fire branch pipe 12. The number of transmission gears is two or more; specifically, in this embodiment, for example… Figure 2 As shown, the transmission gear 32 includes a first transmission gear 321, a second transmission gear 322, a third transmission gear 323, a fourth transmission gear 324, a fifth transmission gear 325, and a sixth transmission gear 326. Specifically, the connecting assembly 34 constrains and fixes the relative positions of the first transmission gear 321 and the first fire branch pipe 121 located on one side. When the first transmission gear 321 rotates, it can drive the first fire branch pipe 121 to rotate synchronously through the constraint relationship. Similarly, the second transmission gear 322 and the second fire branch pipe 122 are fixed, and the third transmission gear 323 and the third fire branch pipe 123 are fixed.

[0032] Specifically, in this embodiment, the diameters of the first transmission gear 321, the second transmission gear 322, and the third transmission gear 323 decrease sequentially. To avoid motion interference, the first transmission gear 321 is positioned at the point furthest from the transmission gear 32 from the drug inlet pipe 11, and its corresponding first fire branch pipe 121 and fourth fire branch pipe 124 are aligned front to back. The rotation center of the second transmission gear 322 has a first offset from the central axis of the first transmission gear 321, and the connected second fire branch pipe 122 maintains the same relative position. The rotation center of the third transmission gear 323 has a second offset relative to the central axis of the first transmission gear 321, and the corresponding third fire branch pipe 123 also follows this geometric correspondence; wherein the second offset is greater than the first offset. The other transmission gear 32 is arranged symmetrically relative to the fire branch pipe 12. The drive gear 33 and the transmission gear 32 maintain a meshing relationship. When the drive gear 33 moves away from the drug inlet pipe 11 in a straight line, the transmission gear 32 drives the fire branch pipe 12 to expand outward. When the drive gear 33 moves closer to the drug inlet pipe 11, the transmission gear 32 drives the fire branch pipe 12 to retract inward.

[0033] Specifically, when the rotary spraying mechanism performs the unfolding action, the direction away from the drug inlet pipe is forward, and vice versa; it pushes the first gear push rod 21 and the second gear push rod 22 forward, causing the drive gear 33 to move forward. The drive gear 33 maintains a meshing relationship with the transmission gear 32, driving the first transmission gear 321, the second transmission gear 322, and the third transmission gear 323 to rotate synchronously. The first transmission gear 321 drives the first fire branch pipe 121 to unfold outward at a set angle of 0-45°, the second transmission gear 322 drives the second fire branch pipe 122 to unfold synchronously at 45-90°, and the third transmission gear 323 drives the third fire branch pipe 123 to unfold at 90-135°; at the same time, with the seventh fire branch pipe 127 as the axis of symmetry, the other fire branch pipe 12 unfolds symmetrically, maintaining the unfolded posture of the fire branch pipe 12.

[0034] Furthermore, when the rotating spray mechanism performs the folding action, it pulls the first gear push rod 21 and the second gear push rod 22 backward, causing the drive gear 33 to move backward. The drive gear 33 drives the transmission gear 32 to rotate in the opposite direction through meshing transmission: the first transmission gear 321 drives the first fire branch pipe 121 to retract inward by 0-45°, the second transmission gear 322 drives the second fire branch pipe 122 to retract synchronously by 45-90°, and the third transmission gear 323 drives the third fire branch pipe 123 to retract by 90-135°; at the same time, with the seventh fire branch pipe 127 as the axis of symmetry, the fire branch pipe 12 on the other side retracts symmetrically.

[0035] In this embodiment, after the fire branch pipe 12 is fully extended by the rotary drive unit 3, the rotary spray mechanism forms a radial coverage layout with the seventh fire branch pipe 127 as the axis of symmetry, achieving the maximum coverage area. When retracting, the fire branch pipe 12 folds step by step to achieve the minimum coverage area. By controlling the displacement of the first toothed rail push rod 21 and the second toothed rail push rod 22, the extension angle of the fire branch pipe 12 can be continuously adjusted between the initial position and the maximum extension position, which can achieve wide-area coverage fire extinguishing, or switch to a concentrated spray mode targeting the fire source, significantly improving the flexibility and adaptability of fire extinguishing operations.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotary spray mechanism for fire fighting in new energy vehicles, characterized in that, include: Extinguishing agent delivery unit (1), transmission control unit (2) and rotary drive unit (3); The extinguishing agent delivery unit (1) includes an inlet pipe (11); The transmission control unit (2) includes a first toothed push rod (21) and a second toothed push rod (22) symmetrically arranged with respect to the drug inlet pipe (11). The rotary drive unit (3) includes a flexible connecting tube (31), a transmission gear (32), a drive gear (33), and a connecting assembly (34). The first toothed rail push rod (21) and the second toothed rail push rod (22) can push the drive toothed rail (33) to move. Through the meshing of the drive toothed rail (33) with the transmission gear (32), the transmission gear (32) drives the fire branch pipe (12) to expand or retract synchronously.

2. The rotary jetting mechanism according to claim 1, characterized in that: The transmission gear (32) includes: a first transmission gear (321), a second transmission gear (322), a third transmission gear (323), a fourth transmission gear (324), a fifth transmission gear (325), and a sixth transmission gear (326); the first to third transmission gears (321-323) and the fourth to sixth transmission gears (324-326) are symmetrical about the drug inlet pipe (11).

3. The rotary jetting mechanism according to claim 2, characterized in that: The extinguishing agent delivery unit (1) includes an inlet pipe (11), a fire branch pipe (12) and an outlet hole (13). The fire branch pipe (12) includes the first to the seventh fire branch pipes (121-127); the first to the third fire branch pipes (121-123) and the fourth to the sixth fire branch pipes (124-126) are symmetrical about the seventh fire branch pipe (127).

4. The rotary jetting mechanism according to claim 3, characterized in that: The first transmission gear (321) drives the first fire branch pipe (121) to rotate, the second transmission gear (322) drives the second fire branch pipe (122) to rotate, the third transmission gear (323) drives the third fire branch pipe (123) to rotate, the fourth transmission gear (324) drives the fourth fire branch pipe (124) to rotate, the fifth transmission gear (325) drives the fifth fire branch pipe (125) to rotate, the sixth transmission gear (326) drives the sixth fire branch pipe (126) to rotate, and the seventh fire branch pipe (127) remains stationary.

5. The rotary jetting mechanism according to claim 1, characterized in that: When the drive toothed rail (33) moves in a straight line, the fire branch pipe (12) at the end away from the drug inlet pipe (11) unfolds, and the fire branch pipe (12) at the end close to the drug inlet pipe (11) retracts.

6. The rotary jetting mechanism according to claim 1, characterized in that: The connecting component (34) is used to connect the transmission gear (32) and the fire branch pipe (12) so that the fire branch pipe (12) moves synchronously with the transmission gear (32).

7. The rotary jetting mechanism according to claim 1, characterized in that: The axial movement direction of the first toothed rail push rod (21) and the second toothed rail push rod (22) is parallel to the movement direction of the driving toothed rail (33).

8. The rotary jetting mechanism according to claim 2, characterized in that: The first to seventh fire branch pipes (121-127) are connected by a flexible connecting pipe (31) to form a fire extinguishing agent flow channel.

9. The rotary jetting mechanism according to claim 1, characterized in that: The extinguishing agent delivery unit (1) also includes a discharge port (13), which is evenly distributed on the surface of the fire branch pipe (12).

10. The rotary jetting mechanism according to claim 1, characterized in that: The unfolding angle of the fire branch pipe (12) is controlled by the displacement of the drive toothed rail (33); the first fire branch pipe (121) and the fourth fire branch pipe (124) can unfold to 0°-45°, the second fire branch pipe (122) and the fifth fire branch pipe (125) can unfold to 45°-90°, and the third fire branch pipe (123) and the sixth fire branch pipe (126) can unfold to 90°-135°.

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