High-power foam fire fighting truck equipped with pneumatic overturning step
By designing pneumatic flip step on the independent occupant tread of the high-power foam fire truck, the problem of existing step prone to failure after long-term use is solved, achieving a longer service life and a more convenient user experience.
Patent Information
- Application Number
- CN202422382000.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-29
AI Technical Summary
The independent occupant stairs of existing high-power foam fire trucks are prone to failure after long-term use, and the service life is not long enough, and it is not convenient to use.
A pneumatic flip tread is designed, which drives the step frame and pedal to flip by turning the cylinder to form a step structure, which facilitates firefighters to get on and off the vehicle, and flips into the vehicle body when not in use, avoiding affecting the normal driving of the vehicle.
It extends the service life of the step, improves the convenience of use, reduces the possibility of failure, and does not occupy vehicle space when not in use.
Smart Images
Figure CN223014489U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a fire truck, in particular to a high-power foam fire truck equipped with a pneumatic flip step. Background Art
[0002] Most of the independent crew cabin steps of the existing high-power foam fire trucks are of fixed structure, and a few are of mechanical linkage structure. The fixed structure is a ladder structure, which is not convenient for getting on and off the vehicle. Although the mechanical linkage structure is more convenient for getting on and off the vehicle, after long-term use, the steps of this structure will malfunction due to the use environment and structure, and its service life is not long enough. In addition, this kind of step is not very convenient to use. Content of the Utility Model
[0003] The purpose of the utility model is to provide a high-power foam fire truck equipped with a pneumatic flip step, in which the independent crew cabin steps are not prone to malfunction after long-term use, have a longer service life, and are more convenient to use.
[0004] The technical solution of the utility model is: it includes a high-power foam fire truck body composed of a chassis, a cab and a carriage. An independent crew cabin is provided on the carriage of the high-power foam fire truck body. Crew cabin doors are respectively provided on both sides of the independent crew cabin. Flip steps composed of a step frame, an upper step, a lower step and a flip cylinder are respectively provided below each crew cabin door. The step frame is fixedly installed on the carriage. The upper step and the lower step are arranged one above the other, and one side of each is hinged to the step frame respectively. A connecting rod with its upper end hinged to the upper step and its lower end hinged to the lower step is provided between the upper step and the lower step. The cylinder body and the cylinder rod of the flip cylinder are respectively hinged to the step frame and the lower step. The telescopic movement of the flip cylinder drives the lower step to flip, and the lower step drives the upper step to flip together through the connecting rod.
[0005] The technical effect of the utility model is: the independent crew cabin steps of this fire truck are not prone to malfunction after long-term use, have a longer service life, and are more convenient to use. Its independent crew cabin steps adopt pneumatic flip steps controlled by cylinders. When not in use, they flip into the vehicle body without affecting the normal driving of the vehicle. When in use, they flip out to form a step structure, which is more convenient for firefighters to get on and off the vehicle. Description of the Drawings
[0006] Figure 1 It is a schematic structural diagram of an embodiment of the utility model;
[0007] Figure 2 It is a three-dimensional structural diagram of the flip step of an embodiment of the utility model. Detailed Embodiment
[0008] As Figure 1 、 Figure 2As shown in the figure, it includes a high-power foam fire truck body composed of a chassis 1, a cab 2, and a carriage 3. An independent crew compartment 31 is provided on the carriage 3 of the high-power foam fire truck body. Crew compartment doors 32 are respectively provided on both sides of the independent crew compartment 31. Below each crew compartment door 32, there is a flip step composed of a step frame 33, an upper step 34, a lower step 35, and a flip cylinder 36. The step frame 33 is fixedly installed on the carriage 3. The upper step 34 and the lower step 35 are arranged one above the other, and one side of each is hinged to the step frame 33 respectively. A connecting rod 37 is provided between the upper step 34 and the lower step 35, with its upper end hinged to the upper step 34 and its lower end hinged to the lower step 35. The cylinder body and the cylinder rod of the flip cylinder 36 are respectively hinged to the step frame 33 and the lower step 35. The telescopic movement of the flip cylinder 36 drives the lower step 35 to flip, and the lower step 35 drives the upper step 34 to flip together through the connecting rod 37.
[0009] The air inlet and outlet of the flip cylinder 36 are respectively connected to the air source and the distributor provided on the high-power foam fire truck body through high-pressure air pipes.
[0010] A cylinder body hinge seat 38 is provided on the step frame 33, and a cylinder rod hinge seat 39 is provided on the lower step 35. The tail of the cylinder body of the flip cylinder 36 is hinged to the cylinder body hinge seat 38, and the end of the cylinder rod is hinged to the cylinder rod hinge seat 39.
[0011] Connecting rod hinge seats 40 are respectively provided on the upper step 34 and the lower step 35. The upper end of the connecting rod 37 is hinged to the connecting rod hinge seat 40 on the upper step 34, and the lower end is hinged to the connecting rod hinge seat 40 on the lower step 35.
[0012] The upper step 34 is composed of an upper step frame 41 and an upper pedal 42 provided on the upper step frame 41. The lower step 35 is composed of a lower step frame 43 and a lower pedal 44 provided on the lower step frame 43.
[0013] Anti-slip patterns 45 are respectively provided on the upper surfaces of the upper pedal 42 and the lower pedal 44.
[0014] On the carriage 3, there are successively provided an equipment room 46, an independent crew compartment 31, a foam tank 47, and a pump room 48 from front to back.
[0015] A fire cannon 49 is provided on the top of the carriage 3.
[0016] A ladder 50 is provided on the rear side wall of the carriage 3.
Claims
1. A high-power foam fire truck equipped with a pneumatic flip step, comprising a high-power foam fire truck body consisting of a chassis (1), a cab (2) and a compartment (3), an independent passenger compartment (31) being provided on the compartment (3) of the high-power foam fire truck body, and passenger compartment doors (32) being provided on both sides of the independent passenger compartment (31), characterized in that: A reversing step consisting of a step frame (33), an upper step (34), a lower step (35) and a reversing cylinder (36) is provided below each passenger compartment door (32). The step frame (33) is fixedly mounted on the carriage (3). The upper step (34) and the lower step (35) are arranged one above the other, and one side is hinged to the step frame (33). A connecting rod (37) is provided between the upper step (34) and the lower step (35), and the upper end of the connecting rod (37) is hinged to the upper step (34) and the lower end of the connecting rod (37) is hinged to the lower step (35). The cylinder body and the cylinder rod of the reversing cylinder (36) are hinged to the step frame (33) and the lower step (35) respectively. The reversing cylinder (36) is extended and retracted to drive the lower step (35) to reversal, and the lower step (35) drives the upper step (34) to reversal together through the connecting rod (37).
2. The high-power foam fire truck equipped with a pneumatic flip step as claimed in claim 1, characterized in that The air inlet and outlet of the tilting cylinder (36) are respectively connected to an air source and a distributor arranged on the body of a high-power foam fire truck through high-pressure air pipes.
3. The high-power foam fire truck equipped with a pneumatic flip step as claimed in claim 1, characterized in that The step frame (33) is provided with a cylinder body hinge seat (38), the lower step (35) is provided with a cylinder rod hinge seat (39), the tail of the cylinder body of the tilting cylinder (36) is hinged to the cylinder body hinge seat (38), and the end of the cylinder rod is hinged to the cylinder rod hinge seat (39).
4. The high-power foam fire truck equipped with a pneumatic flip step as claimed in claim 1, characterized in that The upper step (34) and the lower step (35) are respectively provided with a connecting rod hinge seat (40); the upper end of the connecting rod (37) is hinged to the connecting rod hinge seat (40) on the upper step (34), and the lower end is hinged to the connecting rod hinge seat (40) on the lower step (35).
5. The high-power foam fire truck equipped with a pneumatic flip step as claimed in claim 1, characterized in that The upper step (34) is composed of an upper step frame (41) and an upper pedal (42) arranged on the upper step frame (41), and the lower step (35) is composed of a lower step frame (43) and a lower pedal (44) arranged on the lower step frame (43).
6. A high-power foam fire truck equipped with a pneumatic flip step as claimed in claim 5, characterized in that Anti-slip grooves (45) are respectively provided on the upper surfaces of the upper pedal (42) and the lower pedal (44).
7. The high-power foam fire truck equipped with a pneumatic flip step as claimed in claim 1, characterized in that The carriage (3) is provided with an equipment room (46), an independent passenger room (31), a foam tank (47) and a water pump room (48) in sequence from front to back.
8. The high-power foam fire truck equipped with a pneumatic flip step as claimed in claim 1, characterized in that A fire monitor (49) is provided on the top of the carriage (3).
9. The high-power foam fire truck equipped with a pneumatic flip step as claimed in claim 1, characterized in that A ladder (50) is provided on the rear side wall of the carriage (3).