four-wheel fire engine

Abstract

The utility model relates to a four-wheel fire engine. The structure comprises: a fire engine body, a ladder body, a shielding shell, a connecting rod, an adjusting installation shell, a guide hole and a backshaped block; the fire engine body top is installed with the ladder body, the ladder body is installed with the shielding shell symmetry, the shielding shell bottom end is installed with the connecting rod symmetry in the fire engine body top, through installing the shielding shell and the connecting rod, the linkage gear counterclockwise rotation drives the first rack and the second rack synchronous movement in the adjusting installation shell inside, makes the first displacement block and the second displacement block close to each other, two backshaped blocks close to each other simultaneously, two shielding shells close to each other and assemble, protect the ladder body, the linkage gear clockwise rotation drives the first displacement block and the second displacement block away from each other, two shielding shells remove the protection state to the ladder body, and the ladder body normal use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of fire truck technology, and in particular to a four-wheeled fire truck. Background Technology

[0002] Fire trucks are specialized vehicles used for fire fighting, emergency rescue, and disaster response. They integrate functions such as fire extinguishing, demolition, aerial work, and communication. Their core equipment includes high-pressure water pumps, water tanks, foam fire extinguishing systems, and ladders / telescopic booms, enabling them to quickly reach the scene to extinguish fires or rescue personnel. Modern fire trucks are also equipped with high-tech equipment such as life detectors and thermal imagers to improve rescue efficiency in complex environments. Some models are designed for special scenarios, such as smoke extraction fire trucks for clearing smoke and chemical rescue trucks for dealing with toxic substance leaks. Their bodies are made of high-strength materials and have warning paint to ensure safety and rapid identification, making them key equipment in the urban public safety system.

[0003] When existing four-wheeled fire trucks are in motion, the top ladder is usually directly exposed to the air without an effective protective structure. This design has obvious defects in dealing with severe weather (such as rainstorms, sandstorms, strong winds, or hail): rainwater erosion may accelerate the corrosion of metal parts, sand and dust particles will wear down the surface coating of the ladder, and extreme temperature differences can easily cause the materials to become brittle. Long-term exposure not only reduces the corrosion resistance of the ladder, but also affects its structural strength and lifting stability due to surface damage, thereby shortening the overall service life of the equipment, increasing maintenance costs and safety hazards. Therefore, optimizing the ladder protection design is crucial to improving the environmental adaptability and reliability of fire trucks.

[0004] Therefore, in response to the above problems, a new four-wheeled fire truck is proposed. Utility Model Content

[0005] To overcome the problems existing in related technologies, this utility model provides a four-wheeled fire truck that can use a protective shell to protect the ladder, preventing severe weather from shortening the service life of the ladder.

[0006] To achieve the above objectives, the first aspect of this utility model provides a four-wheeled fire truck, comprising: Fire truck body, ladder body, shield shell, connecting rod, adjustment and mounting shell, guide hole and U-shaped block; The fire truck body is equipped with a ladder frame at the top. Symmetrically mounted shielding shells are mounted on the ladder frame. Symmetrically mounted connecting rods are mounted on the bottom of the shielding shells above the fire truck body. Below the connecting rods are adjustable mounting shells that connect to the upper surface of the fire truck body. Symmetrically mounted guide holes are provided on the adjustable mounting shells. Symmetrically mounted U-shaped blocks that slide in connection with the guide holes are mounted on the adjustable mounting shells. The upper surface of the U-shaped blocks is connected to the connecting rods.

[0007] Furthermore, a first displacement block is installed inside the adjusting mounting housing, and a second displacement block is provided on one side of the first displacement block inside the adjusting mounting housing. Both the first and second displacement blocks are fixedly connected to the U-shaped block. A first rack that is slidably connected to the inside of the adjusting mounting housing is fixedly connected to the first displacement block, and a second rack that is slidably connected to the inside of the adjusting mounting housing is fixedly connected to the second displacement block. A connecting gear is rotatably connected inside the adjusting mounting housing, and both the first and second racks are meshed with the connecting gear.

[0008] Furthermore, a first protective shell is fixedly connected to one side of the adjusting mounting shell, and a first electric push rod is installed inside the first protective shell. The moving end of the first electric push rod passes through the interior of the adjusting mounting shell and is fixedly connected to the first displacement block.

[0009] Furthermore, an extension shell is fixedly connected to the bottom of the first protective shell, and a first filter screen is fixedly connected to the inner wall of the extension shell.

[0010] Furthermore, a second protective shell located below the connecting rod is fixedly connected to the upper surface of the U-shaped block, and a lifting plate is fixedly connected to the lower surface of the connecting rod. A second electric push rod is installed inside the second protective shell, and the moving end of the second electric push rod is fixedly connected to the lower surface of the lifting plate.

[0011] Furthermore, limit rods are symmetrically and fixedly connected to the lower surface of the lifting plate, and limit seats that slide through the limit rods are fixedly connected to both sides of the second protective shell.

[0012] Furthermore, a second filter screen is fixedly connected to the surface of the second protective shell, and a blocking block fixedly connected to the second protective shell is provided above the second filter screen.

[0013] The technical solution provided by this utility model can include the following beneficial effects: In this example, by installing the shielding shell and connecting rod, the connecting gear rotates counterclockwise, causing the first rack and the second rack to move synchronously inside the adjusting mounting shell, so that the first displacement block and the second displacement block move closer to each other, the two loop blocks move closer at the same time, and the two shielding shells move closer together to assemble, thus protecting the main body of the ladder. When the connecting gear rotates clockwise, it causes the first displacement block and the second displacement block to move away from each other, and the two shielding shells release the protective state of the main body of the ladder, facilitating the normal use of the main body of the ladder.

[0014] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0015] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0016] Figure 1 This is a schematic diagram of the overall structure from one angle shown in one embodiment of this utility model; Figure 2 This is a schematic diagram of the overall structure from another angle, as shown in an embodiment of the present invention; Figure 3 This is an enlarged schematic diagram of the connecting rod shown in an embodiment of this utility model; Figure 4 This is a schematic diagram of the internal structure of one of the angle adjustment mounting shells shown in an embodiment of this utility model; Figure 5 This is a schematic diagram of the internal structure of another angle-adjustable mounting shell shown in an embodiment of this utility model; Figure 6 This is a schematic diagram of the internal structure of the second protective shell shown in an embodiment of the present invention.

[0017] The correspondence between the labels and component names in the attached figures is as follows: 1. Fire truck body; 2. Ladder body; 3. Shelter shell; 4. Connecting rod; 5. Adjustable mounting shell; 6. Guide hole; 7. U-shaped block; 8. First displacement block; 9. Second displacement block; 10. First rack; 11. Second rack; 12. Linkage gear; 13. First protective shell; 14. First electric push rod; 15. Extension shell; 16. First filter screen; 17. Second protective shell; 18. Lifting plate; 19. Second electric push rod; 20. Limiting rod; 21. Limiting seat; 22. Second filter screen; 23. Shelter block. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. The preferred embodiments of this utility model will now be described in more detail with reference to the accompanying drawings. Although the preferred embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this utility model more thorough and complete, and to fully convey the scope of this utility model to those skilled in the art.

[0019] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0020] It should be understood that although the terms "first," "second," "third," etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] How to design a four-wheeled fire truck is currently the primary technical problem that technicians need to solve.

[0022] To address the aforementioned issues, this utility model provides a four-wheeled fire truck. This structure can protect the fire ladder with a protective shell, preventing severe weather from shortening the service life of the fire ladder.

[0023] The technical solution of the present invention (Embodiment 1) is described in detail below with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the overall structure from one angle shown in one embodiment of this utility model; Figure 2 This is a schematic diagram of the overall structure from another angle, as shown in an embodiment of the present invention; Figure 3 This is an enlarged schematic diagram of the connecting rod shown in an embodiment of this utility model; Figure 4 This is a schematic diagram of the internal structure of one of the angle adjustment mounting shells shown in an embodiment of this utility model; Figure 5 This is a schematic diagram of the internal structure of another angle-adjustable mounting shell shown in an embodiment of this utility model; Figure 6 This is a schematic diagram of the internal structure of the second protective shell shown in an embodiment of the present invention.

[0025] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The four-wheeled fire truck specifically includes: Fire truck body 1, ladder body 2, shield shell 3, connecting rod 4, adjustment and mounting shell 5, guide hole 6 and U-shaped block 7; The fire truck body 1 is equipped with a ladder body 2 at its top. A shielding shell 3 is symmetrically installed on the ladder body 2. A connecting rod 4 located above the fire truck body 1 is symmetrically installed at the bottom of the shielding shell 3. An adjusting mounting shell 5 connected to the upper surface of the fire truck body 1 is installed below the connecting rod 4. A guide hole 6 is symmetrically opened on the adjusting mounting shell 5. A loop block 7 slidably connected to the guide hole 6 is symmetrically installed on the adjusting mounting shell 5. The upper surface of the loop block 7 is connected to the connecting rod 4.

[0026] Specifically, a first displacement block 8 is installed inside the adjusting mounting shell 5, and a second displacement block 9 located inside the adjusting mounting shell 5 is provided on one side of the first displacement block 8. Both the first displacement block 8 and the second displacement block 9 are fixedly connected to the U-shaped block 7. A first rack 10 that is slidably connected to the inside of the adjusting mounting shell 5 is fixedly connected to the first displacement block 8, and a second rack 11 that is slidably connected to the inside of the adjusting mounting shell 5 is fixedly connected to the second displacement block 9. A connecting gear 12 is rotatably connected inside the adjusting mounting shell 5, and both the first rack 10 and the second rack 11 are meshed with the connecting gear 12.

[0027] Specifically, a first protective shell 13 is fixedly connected to one side of the adjustment mounting shell 5. A first electric push rod 14 is installed inside the first protective shell 13. The moving end of the first electric push rod 14 passes through the interior of the adjustment mounting shell 5 and is fixedly connected to the first displacement block 8.

[0028] Specifically, an extension shell 15 is fixedly connected to the bottom end of the first protective shell 13, and a first filter screen 16 is fixedly connected to the inner wall of the extension shell 15.

[0029] Specifically, a second protective shell 17 located below the connecting rod 4 is fixedly connected to the upper surface of the U-shaped block 7, and a lifting plate 18 is fixedly connected to the lower surface of the connecting rod 4. A second electric push rod 19 is installed inside the second protective shell 17, and the moving end of the second electric push rod 19 is fixedly connected to the lower surface of the lifting plate 18.

[0030] Specifically, the lower surface of the lifting plate 18 is symmetrically and fixedly connected with limit rods 20, and the two sides of the second protective shell 17 are fixedly connected with limit seats 21 that slide through the limit rods 20.

[0031] Specifically, a second filter screen 22 is fixedly connected to the surface of the second protective shell 17, and a blocking block 23 fixedly connected to the second protective shell 17 is provided above the second filter screen 22. The blocking block 23 is trapezoidal in design.

[0032] In this embodiment, how to protect the main body 2 of the ladder, combined with Figures 1 to 5 The specific implementation method is as follows: The first electric push rod 14 inside the first protective shell 13 is activated, the moving end of the first electric push rod 14 extends, driving the first displacement block 8 to approach the linkage gear 12, the first rack 10 drives the linkage gear 12 to rotate counterclockwise, the linkage gear 12 controls the first rack 10 and the second rack 11 to move synchronously inside the adjustment and mounting shell 5, so that the first displacement block 8 and the second displacement block 9 move closer to each other, the two loop blocks 7 move closer to each other, and the shielding shell 3 moves closer to assembly, protecting the ladder body 2. The moving end of the first electric push rod 14 retracts, so that the linkage gear 12 rotates clockwise, driving the first displacement block 8 and the second displacement block 9 to move away from each other, and the two shielding shells 3 release the protective state of the ladder body 2, so that the ladder body 2 can be used normally.

[0033] In this embodiment, how to ensure proper heat dissipation of the first electric push rod 14, combined with... Figure 4 and Figure 5 The specific implementation method is as follows: the extension shell 15 is installed at the bottom of the first protective shell 13. When the first electric push rod 14 generates heat, it will be dispersed into the surrounding air through the holes on the surface of the first filter screen 16 to ensure stable heat dissipation of the first electric push rod 14.

[0034] In this embodiment, how to adapt the ladder body 2 to different heights, combined with Figure 6 The specific implementation method is as follows: The second electric push rod 19 inside the second protective shell 17 is activated. The moving end of the second electric push rod 19 drives the lifting plate 18 to move upward, so that the connecting rod 4 and the shield shell 3 move upward, which facilitates the protection of the ladder body 2 when the height is increased. The moving end of the second electric push rod 19 retracts, which drives the shield shell 3 to move downward, which protects the ladder body 2 when the height is decreased. When the lifting plate 18 is raised and lowered, the limiting rod 20 slides through the limiting seat 21 to ensure the stability of the lifting plate 18. Since the second filter screen 22 is close to the ladder body 2, rain and snow will not easily come into contact with it. The shield block 23 protects the second filter screen 22 and ensures that the second electric push rod 19 maintains stable heat dissipation in severe weather.

[0035] The present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to the present invention. Furthermore, it is understood that the steps in the method of the present invention embodiments can be adjusted, combined, and deleted according to actual needs, and the structure in the device of the present invention embodiments can be combined, divided, and deleted according to actual needs.

[0036] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A four-wheel fire fighting vehicle, characterized in that, include: Fire truck body (1), ladder body (2), shield shell (3), connecting rod (4), adjustment and mounting shell (5), guide hole (6) and loop block (7); The fire truck body (1) is equipped with a ladder body (2) at the top. A shield shell (3) is symmetrically installed on the ladder body (2). A connecting rod (4) located above the fire truck body (1) is symmetrically installed at the bottom of the shield shell (3). An adjustment mounting shell (5) connected to the upper surface of the fire truck body (1) is installed below the connecting rod (4). A guide hole (6) is symmetrically opened on the adjustment mounting shell (5). A loop block (7) slidably connected to the guide hole (6) is symmetrically installed on the adjustment mounting shell (5). The upper surface of the loop block (7) is connected to the connecting rod (4).

2. The four-wheeled fire truck according to claim 1, characterized in that: The first displacement block (8) is installed inside the adjusting mounting shell (5). A second displacement block (9) is provided on one side of the first displacement block (8) inside the adjusting mounting shell (5). The first displacement block (8) and the second displacement block (9) are both fixedly connected to the loop block (7). A first rack (10) is fixedly connected to the first displacement block (8) and slidably connected to the inside of the adjusting mounting shell (5). A second rack (11) is fixedly connected to the second displacement block (9) and slidably connected to the inside of the adjusting mounting shell (5). A connecting gear (12) is rotatably connected inside the adjusting mounting shell (5). The first rack (10) and the second rack (11) are both meshed with the connecting gear (12).

3. The four-wheeled fire truck according to claim 2, characterized in that: A first protective shell (13) is fixedly connected to one side of the adjustment mounting shell (5). A first electric push rod (14) is installed inside the first protective shell (13). The moving end of the first electric push rod (14) passes through the interior of the adjustment mounting shell (5). The moving end of the first electric push rod (14) is fixedly connected to the first displacement block (8).

4. The four-wheeled fire truck according to claim 3, characterized in that: An extension shell (15) is fixedly connected to the bottom of the first protective shell (13), and a first filter screen (16) is fixedly connected to the inner wall of the extension shell (15).

5. The four-wheeled fire truck according to claim 1, characterized in that: The upper surface of the spiral block (7) is fixedly connected to a second protective shell (17) located below the connecting rod (4), and the lower surface of the connecting rod (4) is fixedly connected to a lifting plate (18). The second protective shell (17) is equipped with a second electric push rod (19), and the moving end of the second electric push rod (19) is fixedly connected to the lower surface of the lifting plate (18).

6. The four-wheeled fire truck according to claim 5, characterized in that: The lower surface of the lifting plate (18) is symmetrically fixedly connected with limit rods (20), and the two sides of the second protective shell (17) are fixedly connected with limit seats (21) that slide through the limit rods (20).

7. The four-wheeled fire fighting vehicle according to claim 6, characterized in that: The second protective shell (17) is fixedly connected with a second filter screen (22), and an shielding block (23) fixedly connected with the second protective shell (17) is arranged above the second filter screen (22).

Images