An electric assist device for transporting fire hoses
By designing an electric-assisted device, using electric drive and foldable casters, the problems of slow laying speed, high manpower consumption and insufficient stability of traditional fire hose trailers have been solved, achieving fast, stable and safe hose laying.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 徐汇区消防救援支队
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-26
Smart Images

Figure CN224277252U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire-fighting equipment, and in particular to an electric assist device for transporting fire hoses. Background Technology
[0002] In fire and rescue operations, the laying of water hoses is a crucial step in firefighting.
[0003] Traditional water hose trailers rely on manual labor, which has many drawbacks:
[0004] Slow laying speed: Relying entirely on manual labor to push a small trailer to lay water hoses takes a long time at emergency rescue sites, making it impossible to quickly lay water hoses to the fire scene, which may cause the fire to spread and delay the best time to extinguish the fire.
[0005] High manpower consumption: Moving the small trailer by hand in complex rescue sites requires a lot of manpower, which is a huge test of the physical strength of rescuers and can easily cause them to get tired prematurely, affecting the subsequent rescue work.
[0006] Insufficient stability: Traditional small trailers lack stability and are not easy or quick to operate. In complex terrain or emergency operations, they may tip over and cause safety problems, which not only affect work efficiency but also threaten the safety and stability of rescue operations.
[0007] Therefore, it is necessary to provide an electric assist device for transporting fire hoses to solve the above-mentioned technical problems. Utility Model Content
[0008] This utility model provides an electric assist device for transporting fire hoses, which solves the problems of slow laying speed, high manpower consumption and insufficient stability in the traditional manual working mode of hose trailers.
[0009] To solve the above-mentioned technical problems, this utility model provides an electric assist device for transporting fire hoses, comprising:
[0010] Mounting frame, truck bed, drive unit, two wheels, bracket, power unit, power handle, fixed handle, connecting frame, rotating assembly and casters;
[0011] The truck bed is disposed inside the mounting frame;
[0012] The drive unit is mounted on the bottom of the mounting frame, and the two wheels are respectively mounted on both sides of the drive unit;
[0013] The bracket is installed on one side of the mounting frame, the power component is installed on one side of the bracket, and the power handle and the fixed handle are symmetrically installed on both sides of the bracket surface.
[0014] The connecting frame is disposed on the surface of the bracket;
[0015] The rotating component is located below the connecting frame;
[0016] The omnidirectional wheel is located below the rotating assembly.
[0017] Preferably, a brake lever is installed on one side of both the power handle and the fixed handle.
[0018] Preferably, the rotating assembly includes a support rod, a rotating rod, two rectangular blocks, and bolts. The support rod is installed at the bottom of the connecting frame, and the rotating rod is rotatably connected to one end of the support rod via a rotating shaft.
[0019] Preferably, the two rectangular blocks are respectively mounted on the surfaces of the support rod and the rotating rod, and the bolt is disposed between the two rectangular blocks.
[0020] Preferably, a movable component is provided between the connecting frame and the support rod. The movable component includes a fixed rod, a movable sleeve, a connecting plate, a fixing bolt, multiple fixing holes, and a stop block. The fixed rod is connected to the bottom of the connecting frame, the movable sleeve is fitted onto the surface of the fixed rod, and the connecting plate is connected to one side of the movable sleeve.
[0021] Preferably, the fixing bolt is disposed between the movable sleeve and the fixing rod, and the plurality of fixing holes are all formed on the surface of the fixing rod.
[0022] Preferably, the stop is connected to the bottom of the fixed rod.
[0023] Compared with related technologies, the electric assist device for transporting fire hoses provided by this utility model has the following beneficial effects:
[0024] This utility model provides an electric assist device for transporting fire hoses. The device consists of a drive unit with two wheels, a power unit, a power handle, and a fixed handle at the bottom of a mounting frame with a truck bed. It works in conjunction with a connecting frame with a rotating component and casters. This allows the working mode to be changed from manual to electric drive. At the rescue site, the hose can be laid to the fire scene quickly and effectively, solving the problems of slow speed and long time in the traditional manual mode, and saving valuable time for fire fighting.
[0025] Reduced manpower consumption: By changing the previous method of relying entirely on manual labor to push the trailer, the physical exertion of rescue personnel during the water hose laying process is reduced, preventing premature fatigue and facilitating the continued operation of subsequent rescue work. Enhanced stability and ease of operation: The addition of foldable casters greatly improves the stability of the trailer, making it easier and faster to use. In complex terrain or emergency operations, it reduces the safety risks such as tipping over, ensuring both work efficiency and safety. Attached Figure Description
[0026] Figure 1 A schematic diagram of the structure of a first embodiment of an electric assist device for transporting fire hoses provided by this utility model;
[0027] Figure 2 for Figure 1 The diagram shown is a first-person perspective three-dimensional structural schematic of the power assist device;
[0028] Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below;
[0029] Figure 4 for Figure 1 The diagram shows a two-dimensional structural representation of the power-assisted device from a second-view perspective.
[0030] Figure 5 This is a schematic diagram of the second embodiment of an electric assist device for transporting fire hoses provided by this utility model.
[0031] The following are the labels in the diagram: 1. Mounting frame; 2. Truck bed; 3. Drive unit; 4. Wheel; 5. Brake; 6. Power unit; 7. Power handle; 8. Fixed handle; 9. Brake lever; 10. Connecting frame;
[0032] 11. Rotating assembly; 111. Support rod; 112. Rotating rod; 113. Rectangular block; 114. Bolt;
[0033] 12. Casters;
[0034] 13. Movable component; 131. Fixing rod; 132. Movable sleeve; 133. Connecting plate; 134. Fixing bolt; 135. Fixing hole; 136. Stop block. Detailed Implementation
[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0036] First Embodiment
[0037] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4,in, Figure 1 A schematic diagram of the structure of a first embodiment of an electric assist device for transporting fire hoses provided by this utility model; Figure 2 for Figure 1 The diagram shown is a first-person perspective three-dimensional structural schematic of the power assist device; Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below; Figure 4 for Figure 1 The diagram shows a second-view perspective three-dimensional structural schematic of the power-assisted device. A power-assisted device for transporting fire hoses includes:
[0038] Mounting frame 1, truck bed 2, drive unit 3, two wheels 4, bracket 5, power unit 6, power handle 7, fixed handle 8, connecting frame 10, rotating assembly 11 and caster wheel 12;
[0039] The truck bed 2 is disposed inside the mounting frame 1;
[0040] The drive component 3 is installed at the bottom of the mounting frame 1, and the two wheels 4 are respectively installed on both sides of the drive component 3;
[0041] The bracket 5 is installed on one side of the mounting frame 1, the power component 6 is installed on one side of the bracket 5, and the power handle 7 and the fixed handle 8 are symmetrically installed on both sides of the surface of the bracket 5.
[0042] The connecting frame 10 is disposed on the surface of the bracket 5;
[0043] The rotating assembly 11 is located below the connecting frame 10;
[0044] The omnidirectional wheel 12 is located below the rotating assembly 11.
[0045] Brake levers 9 are installed on one side of both the power handle 7 and the fixed handle 8.
[0046] The drive unit 3 consists of two motors, the power supply unit 6 is a controller battery pack, the power handle 7 is connected to the power supply unit 6 to control the drive unit 3 to rotate, the support rod 111 is obliquely installed at the center of the bottom of the connecting frame 10, the universal wheel 12 is rotatably connected to one end of the rotating rod 112, the rectangular block 113 has threaded mounting holes adapted to the bolt 114 on its surface, and a switch is installed on the bracket 5 to facilitate opening and closing of the device.
[0047] The rotating assembly 11 includes a support rod 111, a rotating rod 112, two rectangular blocks 113 and bolts 114. The support rod 111 is installed at the bottom of the connecting frame 10, and the rotating rod 112 is rotatably connected to one end of the support rod 111 via a rotating shaft.
[0048] The two rectangular blocks 113 are respectively installed on the surfaces of the support rod 111 and the rotating rod 112, and the bolt 114 is disposed between the two rectangular blocks 113.
[0049] The motor is a brushless DC motor;
[0050] Add foldable casters to the handle;
[0051] The brake horn strap can be squeezed to cut off the power if the wire is broken; the brake uses an electric motor braking system – an electromagnetic brake.
[0052] The battery, circuit board, controller, and switch are all inside the box.
[0053] IV. Main Innovations
[0054] By adding modules such as control switches, circuits, batteries, and controllers, the working mode of the small trailer is changed from manual to electric drive, which greatly improves work efficiency. At the rescue site, water hoses can be quickly and effectively laid to the fire scene, solving the problems of slow laying speed, long time and high manpower consumption.
[0055] By adding foldable casters, the stability of the small trailer is greatly improved, making it easier and faster to use and operate. This not only improves work efficiency but also ensures safety and stability, thus buying valuable time for extinguishing building fires.
[0056] The motor is a high-quality brushless DC motor, which features high reliability, no sparks, low interference, low mechanical noise, smooth operation, safety and high efficiency, long life and low maintenance cost.
[0057] The battery uses three sets of 12V lead-acid batteries, which are safe, sealed, waterproof and heat resistant; have an ultra-long battery life and long service life; stable quality, reliable performance and simple maintenance.
[0058] The working principle of the electric assist device for transporting fire hoses provided by this utility model is as follows:
[0059] In use, when driving the entire device to move, first turn on the power component 6. After the power component 6 is turned on, power is supplied to the drive component 3. After the drive component 3 is powered, the speed of the drive component 3 is controlled by turning the power handle 7. When the drive component 3 rotates, it drives the wheel 4 to rotate. When the drive component 3 drives the wheel 4 to rotate, it drives the entire device to move.
[0060] To increase the stability of the entire device, first rotate the rotating rod 112 with the caster 12 until it contacts the support rod 111. After one end of the rotating rod 112 is connected to one end of the support rod 111, use bolts 114 to pass through the two rectangular blocks 113 to fix the support rod 111 and the rotating rod 112. The stability can be increased by having the caster 12 contact the ground.
[0061] Compared with related technologies, the electric assist device for transporting fire hoses provided by this utility model has the following beneficial effects:
[0062] This utility model provides an electric assist device for transporting fire hoses. At the bottom of the mounting frame 1 with a truck bed 1, there is a drive component 3 with two wheels 4, a power component 6, a power handle 7 and a fixed handle 8. It works in conjunction with the connecting frame 10 with a rotating component 11 and universal wheels 12. The working mode can be changed from manual to electric drive. At the rescue site, the hose can be laid to the fire scene quickly and effectively. It solves the problems of slow laying speed and long time in the traditional manual mode, and saves valuable time for fire fighting.
[0063] Reduced manpower consumption: By changing the previous method of relying entirely on manpower to push the small trailer, the physical exertion of rescuers during the process of laying water hoses is reduced, and rescuers are prevented from becoming fatigued too early, which is conducive to the continued development of subsequent rescue work;
[0064] Enhanced stability and ease of operation: The addition of foldable omnidirectional wheels significantly improves the stability of the trailer, making it easier and faster to use. In complex terrain or emergency operations, it reduces the safety risks of tipping over, ensuring both work efficiency and safety.
[0065] Second Embodiment
[0066] Please refer to the following: Figure 5 Based on the first embodiment of this application which provides an electric assist device for transporting fire hoses, the second embodiment of this application proposes another electric assist device for transporting fire hoses. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.
[0067] Specifically, the second embodiment of this application provides an electric assist device for transporting fire hoses, which differs in that the electric assist device for transporting fire hoses has a movable component 13 between the connecting frame 10 and the support rod 111. The movable component 13 includes a fixed rod 131, a movable sleeve 132, a connecting plate 133, a fixing bolt 134, multiple fixing holes 135, and a stop block 136. The fixed rod 131 is connected to the bottom of the connecting frame 10, the movable sleeve 132 is sleeved on the surface of the fixed rod 131, and the connecting plate 133 is connected to one side of the movable sleeve 132.
[0068] The fixing bolt 134 is disposed between the movable sleeve 132 and the fixing rod 131, and a plurality of fixing holes 135 are formed on the surface of the fixing rod 131.
[0069] The stop 136 is connected to the bottom of the fixing rod 131.
[0070] The fixed rod 131 and the movable sleeve 132 can adjust the vertical position of the rotating assembly 11 and the caster wheel 12. The fixing bolt 134 and multiple fixing holes 135 facilitate the fixing of the movable sleeve 132 and the fixed rod 131. The use of the stop block 136 can prevent the movable sleeve 132 from falling off the surface of the fixed rod 131.
[0071] The working principle of the electric assist device for transporting fire hoses provided by this utility model is as follows:
[0072] In use, the movable sleeve 132 is moved on the surface of the fixed rod 131 by pulling it. When the movable sleeve 132 moves on the surface of the fixed rod 131, the rotating component 11 and the universal wheel 12 are adjusted up and down through the connecting plate 133. After the up and down positions of the rotating component 11 and the universal wheel 12 are adjusted, the fixing bolt 134 is passed through the movable sleeve 132 and connected to the fixing hole 135 on the surface of the fixed rod 131.
[0073] Compared with related technologies, the electric assist device for transporting fire hoses provided by this utility model has the following beneficial effects:
[0074] This utility model provides an electric assist device for transporting fire hoses. A fixed rod 131, a movable sleeve 132, a connecting plate 133, a fixing bolt 134, multiple fixing holes 135 and a stop block 136 are provided between the connecting frame 10 and the support rod 111 to facilitate the adjustment of the vertical height of the caster wheel 12.
[0075] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An electric assist device for transporting fire hoses, characterized in that, include: Mounting frame, truck bed, drive unit, two wheels, bracket, power unit, power handle, fixed handle, connecting frame, rotating assembly and casters; The truck bed is disposed inside the mounting frame; The drive unit is mounted on the bottom of the mounting frame, and the two wheels are respectively mounted on both sides of the drive unit; The bracket is installed on one side of the mounting frame, the power component is installed on one side of the bracket, and the power handle and the fixed handle are symmetrically installed on both sides of the bracket surface. The connecting frame is disposed on the surface of the bracket; The rotating component is located below the connecting frame; The omnidirectional wheel is located below the rotating assembly.
2. The electric assist device for transporting fire hoses according to claim 1, characterized in that, Both the power handle and the fixed handle have brake levers installed on one side.
3. The electric assist device for transporting fire hoses according to claim 1, characterized in that, The rotating assembly includes a support rod, a rotating rod, two rectangular blocks, and bolts. The support rod is installed at the bottom of the connecting frame, and the rotating rod is rotatably connected to one end of the support rod via a rotating shaft.
4. The electric assist device for transporting fire hoses according to claim 3, characterized in that, The two rectangular blocks are respectively mounted on the surfaces of the support rod and the rotating rod, and the bolt is disposed between the two rectangular blocks.
5. The electric assist device for transporting fire hoses according to claim 3, characterized in that, A movable component is provided between the connecting frame and the support rod. The movable component includes a fixed rod, a movable sleeve, a connecting plate, a fixing bolt, multiple fixing holes, and a stop block. The fixed rod is connected to the bottom of the connecting frame, the movable sleeve is fitted onto the surface of the fixed rod, and the connecting plate is connected to one side of the movable sleeve.
6. The electric assist device for transporting fire hoses according to claim 5, characterized in that, The fixing bolt is disposed between the movable sleeve and the fixing rod, and the plurality of fixing holes are formed on the surface of the fixing rod.
7. The electric assist device for transporting fire hoses according to claim 5, characterized in that, The stop block is connected to the bottom of the fixed rod.