Water cannon assembly for a forest fire truck

Abstract

The utility model relates to forest fire fighting equipment technical field, concretely relates to water cannon subassembly of forest fire engine, including several character shape support, the inside fixed connection of several character shape support has a hydraulic cylinder, hydraulic cylinder piston rod stretches out from the top of several character shape support upwards, hydraulic cylinder piston rod top fixed connection has the mounting bracket. The utility model discloses through hydraulic cylinder to realize the height adjustment of water cannon subassembly, rotates the motor drive lower turntable to drive upper turntable and main cannon body horizontal rotation, the pitch motor controls main cannon body to pitch up and down, forms the flexible steering of three -dimensional space, can accurate cover the ignition point of different direction and height of forest fire, and through the setting of the bolt and fixed bolt, can make upper turntable and main cannon body and the output shaft of motor respectively separate, can carry out manual regulation, increase the convenience when using.

Description

Technical Field

[0001] This utility model relates to the field of forest fire fighting equipment technology, specifically to the water cannon component of a forest fire truck. Background Technology

[0002] Forest fires are characterized by their rapid spread, difficulty in extinguishing, and wide-ranging impact, posing a serious threat to forest resources, the ecological environment, and the safety of people's lives and property. In forest fire rescue operations, water cannons are a key piece of equipment for forest fire trucks, and their performance directly affects firefighting efficiency and rescue effectiveness.

[0003] Existing technologies include a lifting fire monitor disclosed in patent application number CN202222498731.6, which includes a fire monitor body installed on the top of a fire truck. The top of the fire truck body has a lifting slot, and the lifting slot contains a lifting frame. When not in use, this device can retract the fire monitor into the lifting slot, preventing the overall height of the fire truck from increasing the difficulty of the fire truck to pass through roads with low elevations. At the same time, it can quickly dry the inside of the fire monitor to prevent water and foam residue from remaining inside the fire monitor body, causing corrosion and rust, thus improving the service life of the fire monitor body. However, when using this technical solution, the adjustment range is limited, making it difficult to quickly and accurately cover fire points in different directions and at different heights. In addition, most traditional fire monitors use a single electric or hydraulic drive method, lacking effective manual adjustment means in case of equipment failure or special circumstances, reducing the device's emergency adaptability and ease of operation.

[0004] In light of this, we propose a water cannon assembly for forest fire trucks. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a water cannon assembly for a forest fire truck.

[0006] The technical solution of this utility model is: The water cannon assembly of a forest fire truck includes a U-shaped bracket. A hydraulic cylinder is fixedly connected inside the U-shaped bracket. The piston rod of the hydraulic cylinder extends upward from the top of the U-shaped bracket. A mounting bracket is fixedly connected to the top of the piston rod. A lower turntable is rotatably mounted on the top of the mounting bracket. A rotary motor with its output shaft coaxially fixed to the lower turntable is installed inside the mounting bracket. An upper turntable is rotatably mounted on the top of the lower turntable. The upper and lower turntables are connected by two symmetrically arranged pins. Two vertical plates are symmetrically fixedly mounted on the top of the upper turntable. A main cannon body is rotatably mounted between the two vertical plates. A pitch motor is mounted on one of the vertical plates. The main cannon body is coaxially fixedly connected to the output shaft of the pitch motor by fixing bolts.

[0007] As a preferred technical solution, the bottom sides of the zigzag bracket are symmetrically fixed with two fixing holes.

[0008] As a preferred technical solution, a water inlet pipe is installed on the main gun body, and an extension tube is installed at the end of the main gun body away from the water inlet pipe. A water spray pipe is fixedly installed at the end of the extension tube.

[0009] As a preferred technical solution, the bottom of the upper turntable is integrally formed with a connecting shaft, and the top of the lower turntable is provided with a mounting groove that is rotatably connected to the connecting shaft.

[0010] As a preferred technical solution, each of the pins has a pull ring integrally formed at the top, and the pin passes through the upper turntable and the lower turntable.

[0011] As a preferred technical solution, two L-shaped handles are symmetrically and rotatably installed on the outer circumference of the main gun body near the end of the water inlet pipe, and a protective sleeve is installed on each L-shaped handle.

[0012] As a preferred technical solution, two outer rods are symmetrically fixed to the outer circumference of the main gun body, and a connecting plate is fixedly installed at the end of each outer rod. The two connecting plates are rotatably connected to two rotating shafts respectively.

[0013] As a preferred technical solution, the fixing bolt is installed on the connecting plate near the pitch motor and threadedly connected to the shaft near the pitch motor.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This invention uses a hydraulic cylinder to adjust the height of the water cannon assembly. A rotary motor drives the lower turntable to rotate the upper turntable and the main cannon body horizontally, while a pitch motor controls the pitch of the main cannon body, creating flexible three-dimensional steering. This allows for precise coverage of fire points at different locations and heights in forest fires. Furthermore, the upper turntable and the main cannon body can be disengaged from the motor's output shaft via pins and fixing bolts, enabling manual adjustment and increasing ease of use. Attached Figure Description

[0015] Figure 1 This is one of the overall structural schematic diagrams of this utility model; Figure 2 This is the second schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of the upper and lower turntables in this utility model; Figure 4 In this utility model Figure 2 Enlarged view of point A in the image; The meanings of the labels in the diagram are as follows: 1. Z-shaped bracket; 10. Fixing hole; 2. Hydraulic cylinder; 3. Mounting bracket; 30. Rotary motor; 4. Lower turntable; 40. Upper turntable; 41. Pin; 410. Pull ring; 42. Connecting shaft; 43. Mounting groove; 5. Vertical plate; 50. Elevation motor; 51. Rotating shaft; 6. Main gun body; 60. Outer rod; 61. Connecting plate; 62. Fixing bolt; 63. Water inlet pipe; 64. Extension tube; 65. Water spray pipe; 7. L-shaped handle; 70. Protective sleeve. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Please see Figures 1-4 This utility model provides a technical solution: The water cannon assembly of the forest fire truck includes a U-shaped bracket 1. A hydraulic cylinder 2 is fixedly connected inside the U-shaped bracket 1. The piston rod of the hydraulic cylinder 2 extends upward from the top of the U-shaped bracket 1. A mounting bracket 3 is fixedly connected to the top of the piston rod of the hydraulic cylinder 2. A lower turntable 4 is rotatably mounted on the top of the mounting bracket 3. A rotary motor 30 with its output shaft coaxially fixed to the lower turntable 4 is installed inside the mounting bracket 3. An upper turntable 40 is rotatably mounted on the top of the lower turntable 4. The upper turntable 40 and the lower turntable 4 are connected by two symmetrically arranged pins 41. Two vertical plates 5 are symmetrically fixedly mounted on the top of the upper turntable 40. A main cannon body 6 is rotatably mounted between the two vertical plates 5. A pitch motor 50 is mounted on one of the vertical plates 5. The main cannon body 6 is coaxially fixedly connected to the output shaft of the pitch motor 50 by fixing bolts 62. The height of the water cannon assembly is adjusted by hydraulic cylinder 2. Rotary motor 30 drives lower turntable 4 to rotate upper turntable 40 and main cannon body 6 horizontally. Pitch motor 50 controls the pitch of main cannon body 6, forming flexible three-dimensional steering, which can accurately cover the ignition points of forest fires at different directions and heights. Furthermore, through the set pin 41 and fixing bolt 62, the upper turntable 40 and main cannon body 6 can be disengaged from the output shaft of the motor, which can be manually adjusted, increasing the convenience of use.

[0017] As a preferred embodiment, two fixing holes 10 are symmetrically fixed on both sides of the bottom of the Z-shaped bracket 1. The fixing holes 10 at the bottom of the Z-shaped bracket 1 facilitate the quick and stable installation of the water cannon assembly onto the forest fire truck, improving installation efficiency and connection reliability.

[0018] In a preferred embodiment, a water inlet pipe 63 is installed on the main gun body 6, and an extension tube 64 is installed at the end of the main gun body 6 away from the water inlet pipe 63. A water spray pipe 65 is fixedly installed at the end of the extension tube 64. The arrangement of the water inlet pipe 63, the extension tube 64, and the water spray pipe 65 optimizes the water flow transmission path. The extension tube 64 can increase the spray distance, and the water spray pipe 65 can change the water flow pattern, thereby improving the fire extinguishing coverage and effectiveness.

[0019] In a preferred embodiment, the upper turntable 40 has a connecting shaft 42 integrally formed coaxially at its bottom, and the lower turntable 4 has a mounting groove 43 on its top that rotatably connects with the connecting shaft 42. The cooperation between the connecting shaft 42 at the bottom of the upper turntable 40 and the mounting groove 43 on the lower turntable 4 ensures smooth rotation of the upper and lower turntables 4, reduces frictional loss, and guarantees smooth horizontal turning operation of the water cannon. In a preferred embodiment, each pin 41 has an integrally formed pull ring 410 at its top, and the pin 41 passes through the upper turntable 40 and the lower turntable 4. The pull ring 410 at the top of the pin 41 facilitates quick insertion and removal operations, enabling quick fixing or unlocking of the upper and lower turntables 4. During manual operation, the pin 41 can be detached from the two turntables.

[0020] As a preferred embodiment, two L-shaped handles 7 are symmetrically and rotatably mounted on the outer circumference of the main gun body 6 near the end of the water inlet pipe 63, and each L-shaped handle 7 is fitted with a protective sleeve 70. The L-shaped handles and protective sleeves 70 on the main gun body 6 facilitate manual adjustment of the angle of the main gun body 6 by the operator, while providing a comfortable grip and improving operational convenience and safety.

[0021] In a preferred embodiment, two outer rods 60 are symmetrically fixed to the outer circumference of the main gun body 6. A connecting plate 61 is fixedly installed at the end of each outer rod 60, and the two connecting plates 61 are rotatably connected to two rotating shafts 51 respectively. The arrangement of the outer rods 60, connecting plates 61 and rotating shafts 51 of the main gun body 6 provides a stable support structure for the pitch motor 50 to drive the main gun body 6 to pitch, disperses the force, and enhances the stability of the main gun body 6 when rotating.

[0022] In a preferred embodiment, the fixing bolt 62 is mounted on the connecting plate 61 near the elevation motor 50 and threadedly connected to the rotating shaft 51 near the elevation motor 50. The fixing bolt 62 securely connects the main gun body 6 to the output shaft of the elevation motor 50, ensuring effective power transmission and guaranteeing accurate and reliable elevation angle adjustment of the main gun body 6. Furthermore, after removing the fixing bolt 62, the main gun body 6 can be disconnected from the output shaft of the elevation motor 50. In use, the water cannon assembly of this utility model for a forest fire truck is first securely installed on the fire truck through the symmetrical fixing holes 10 on both sides of the bottom of the U-shaped bracket 1. The height is adjusted by the extension and retraction of the piston rod of the hydraulic cylinder 2, which drives the mounting bracket 3 to move up and down. The rotating motor 30 inside the mounting bracket 3 drives the lower turntable 4 to rotate. The lower turntable 4 drives the upper turntable 40 and the main cannon body 6 to rotate horizontally through the connecting shaft 42 and the mounting groove 43. The pitch motor 50 drives the main cannon body 6 to pitch between the vertical plates 5 through the fixing bolts 62, so as to achieve flexible three-dimensional control. When extinguishing a fire, water enters the main cannon body 6 through the water inlet pipe 63 and passes through the extension tube 64. The spray distance is increased by changing the water flow pattern through the water pipe 65. For manual adjustment, the upper turntable 40 and the lower turntable 4 can be manually rotated horizontally by lifting the pin 41 through the pull ring 410 to release the fixation of the pin 41. After removing the fixing bolt 62, the pitch angle of the main gun body 6 can be manually adjusted by holding the L-shaped handle 7. The cooperation between the upper turntable 40 connecting shaft 42 and the lower turntable 4 mounting groove 43 ensures smooth rotation. The structure of the main gun body 6 outer rod 60, connecting plate 61 and rotating shaft 51 provides stable support for the pitch of the main gun body 6, ensuring accurate and reliable spraying. This component adapts to complex fire extinguishing scenarios and improves fire extinguishing efficiency and accuracy through the coordinated work of various components.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A water cannon assembly for a forest fire truck, characterized in that: The device includes a U-shaped bracket (1), inside which a hydraulic cylinder (2) is fixedly connected. The piston rod of the hydraulic cylinder (2) extends upward from the top of the U-shaped bracket (1). A mounting bracket (3) is fixedly connected to the top of the piston rod of the hydraulic cylinder (2). A lower turntable (4) is rotatably mounted on the top of the mounting bracket (3). A rotary motor (30) with an output shaft coaxially fixed to the lower turntable (4) is installed inside the mounting bracket (3). An upper turntable (40) is rotatably mounted on the top of the lower turntable (4). The upper turntable (40) and the lower turntable (4) are connected by two symmetrically arranged pins (41). Two vertical plates (5) are symmetrically fixedly mounted on the top of the upper turntable (40). A main gun body (6) is rotatably mounted between the two vertical plates (5). A pitch motor (50) is mounted on one of the vertical plates (5). The main gun body (6) is coaxially fixedly connected to the output shaft of the pitch motor (50) by fixing bolts (62).

2. The water cannon assembly of the forest fire truck as described in claim 1, characterized in that: The bottom sides of the zigzag bracket (1) are symmetrically fixed with two fixing holes (10).

3. The water cannon assembly of the forest fire truck as described in claim 2, characterized in that: A water inlet pipe (63) is installed on the main gun body (6), and an extension tube (64) is installed at the end of the main gun body (6) away from the water inlet pipe (63). A water spray pipe (65) is fixedly installed at the end of the extension tube (64).

4. The water cannon assembly of the forest fire truck as described in claim 3, characterized in that: The bottom of the upper turntable (40) is integrally formed with a connecting shaft (42), and the top of the lower turntable (4) is provided with a mounting groove (43) that is rotatably connected to the connecting shaft (42).

5. The water cannon assembly of the forest fire truck as described in claim 4, characterized in that: Each of the pins (41) has an integrally formed pull ring (410) at the top, and the pins (41) pass through the upper turntable (40) and the lower turntable (4).

6. The water cannon assembly of the forest fire truck as described in claim 5, characterized in that: Two L-shaped handles (7) are symmetrically mounted on the outer circumference of the main gun body (6) near the end of the water inlet pipe (63), and each L-shaped handle (7) is fitted with a protective sleeve (70).

7. The water cannon assembly of the forest fire truck as described in claim 6, characterized in that: The main gun body (6) has two outer rods (60) symmetrically fixed on its outer circumference. Each outer rod (60) has a connecting plate (61) fixedly installed at its end. The two connecting plates (61) are rotatably connected to two rotating shafts (51) respectively.

8. The water cannon assembly of the forest fire truck as described in claim 7, characterized in that: The fixing bolt (62) is installed on the connecting plate (61) near the pitch motor (50) and threadedly connected to the shaft (51) near the pitch motor (50).

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