Water hose winding device and fire fighting truck

Abstract

The utility model relates to the technical field of fire fighting, and provides a water hose winding device and a fire fighting truck, the water hose winding device comprises a supporting seat, a supporting leg assembly and a winding mechanism, the supporting seat is detachably connected to a vehicle chassis, the supporting leg assembly is fixed on the supporting seat and is suitable for stretching in the width direction of the supporting seat, and the winding mechanism is fixed on the supporting seat. The winding mechanism comprises a winding assembly and a hydraulic assembly, the winding assembly is arranged at the telescopic end of the supporting leg assembly, the hydraulic assembly is arranged on the supporting leg assembly, the hydraulic assembly is suitable for being connected with a power device of a vehicle chassis, and the power device serves as a power source of the hydraulic assembly, so that the hydraulic assembly generates hydraulic energy and drives the winding assembly to execute winding and unwinding actions. And the supporting leg assembly is driven to perform telescopic motion. Compared with the prior art, high power and high torque can be provided for the water hose winding device, so that the water hose winding device can bear large load and torque, the water hose winding device is suitable for winding and unwinding of a large-weight water hose, and the defects that in the related technology, the power of the water hose winding device is limited, and the water hose winding device cannot adapt to laying and winding of the large-weight water hose are overcome.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire fighting technical field especially relates to a water hose winding device and fire engine. BACKGROUND

[0002] The fire engine with water hose winding device can automatically lay and recover the water hose, can replace personnel to move, smooth and so on, and the laying and recovery efficiency is higher, saves time and labor.

[0003] However, in the related art, the fire engine with water hose winding device needs to be additionally powered by an additional power system, the system is complex to set, and the power output to the water hose winding device is limited, which cannot adapt to the laying and recovery of heavy water hose. UTILITY MODEL CONTENTS

[0004] The first aspect of the utility model provides a water hose winding device to solve the above technical defects in the prior art, which can provide high power and high torque for the water hose winding device, so that the water hose winding device can withstand larger load and torque, and be suitable for heavy water hose winding and unwinding.

[0005] The second aspect of the utility model provides a fire engine.

[0006] The first aspect of the utility model provides a water hose winding device, which comprises a supporting seat, a supporting leg assembly and a winding mechanism, the supporting seat is detachably connected to a vehicle chassis, the supporting leg assembly is fixed on the supporting seat and is adapted to extend and retract along the width direction of the supporting seat, the winding mechanism comprises a winding assembly and a hydraulic assembly, the winding assembly is arranged at the extension end of the supporting leg assembly, the hydraulic assembly is arranged on the supporting leg assembly, the hydraulic assembly is adapted to be connected with a power device of the vehicle chassis, the power device provides a power source for the hydraulic assembly, so that the hydraulic assembly generates hydraulic energy, drives the winding assembly to perform winding and unwinding actions, and drives the supporting leg assembly to perform extension and retraction movements.

[0007] According to the water hose winding device provided by the utility model, the supporting leg assembly comprises a first supporting leg part and a second supporting leg part.

[0008] The first supporting leg part is fixedly connected with the supporting seat, and is adapted to extend and retract in the first direction along the width of the supporting seat.

[0009] The second leg part is fixedly connected with the first leg part, and is adapted to extend in a second direction opposite to the first direction along the width of the support base; and the winding assembly is arranged at the extending end of the first leg part and the second leg part respectively.

[0010] According to the water hose winding device, the first leg part and the second leg part each comprise a hydraulic oil cylinder, and the hydraulic oil cylinder of the first leg part and the hydraulic oil cylinder of the second leg part are arranged in a stacked manner.

[0011] According to the water hose winding device, a hydraulic lock is arranged on the hydraulic pipeline of each hydraulic oil cylinder, and the hydraulic lock is used for locking the corresponding hydraulic oil cylinder.

[0012] According to the water hose winding device, the first leg part and the second leg part each further comprise a leg box, the hydraulic oil cylinder is arranged in the corresponding leg box, and the leg box of the first leg part and the leg box of the second leg part are fixedly welded.

[0013] According to the water hose winding device, the winding assembly comprises a reel, a rotary support part and a hydraulic motor, the rotary support part is arranged in the leg assembly, the reel is arranged in the rotary support part, the hydraulic motor is connected with the hydraulic assembly, the hydraulic assembly provides hydraulic energy for the hydraulic motor, the hydraulic motor drives the rotary support part to rotate, so as to drive the reel to rotate to perform a winding and unwinding action.

[0014] According to the water hose winding device, the rotary support part comprises a rotary bearing and a worm, the rotary bearing is arranged in meshing with the worm, the hydraulic motor is arranged in transmission with the worm, and the reel is arranged in the rotary bearing.

[0015] According to the water hose winding device, the hydraulic assembly comprises a hydraulic oil tank, a hydraulic pump and a hydraulic pipeline, the hydraulic oil tank is arranged on the leg assembly, the hydraulic pump is connected with the power device, and the hydraulic pump is used for sending oil liquid in the hydraulic oil tank to the winding assembly or the leg assembly through the corresponding hydraulic pipeline.

[0016] According to the water hose winding device, the hydraulic assembly further comprises a multi-way valve, and the multi-way valve is arranged on the hydraulic pipeline between the hydraulic pump and the winding assembly.

[0017] The second aspect of the utility model provides a fire engine, including vehicle chassis, cab, equipment box, supercharged system and water hose winding device of any one, the cab is located the front end of vehicle chassis, water hose winding device is located the position of vehicle chassis close to cab, equipment box and supercharged system are located the rear end of vehicle chassis in proper order,

[0018] The water hose winding device provided by the utility model includes a support seat, a supporting leg assembly and a winding mechanism, the support seat is detachably connected to the vehicle chassis, the supporting leg assembly is fixed on the support seat and is adapted to extend and retract along the width direction of the support seat, the winding mechanism includes a winding assembly and a hydraulic assembly, the winding assembly is arranged at the extension end of the supporting leg assembly, the hydraulic assembly is arranged on the supporting leg assembly, the hydraulic assembly is connected to the power device, the power device provides a power source for the hydraulic assembly, the hydraulic assembly generates hydraulic energy, the winding assembly is driven to perform a winding and unwinding action, and the supporting leg assembly is driven to perform an extension and retraction movement.

[0019] In this way, the water hose winding device is powered by the power device of the vehicle chassis, the driving force is provided by the power source of the vehicle itself, the hydraulic assembly generates hydraulic energy, the winding assembly is driven to perform a winding and unwinding action, and the supporting leg assembly is driven to perform an extension and retraction movement. The water hose winding device can be provided with high power and high torque, so that the water hose winding device can withstand a larger load and torque, and is suitable for winding and unwinding of heavy water hoses, thereby solving the defects in the related art that the power of the water hose winding device is limited and cannot adapt to laying and recovering of heavy water hoses.

[0020] The fire engine provided by the utility model includes the above-mentioned water hose winding device, the water hose winding device can withstand a larger load and torque, is suitable for winding and unwinding of heavy water hoses, and solves the defects in the related art that the power of the water hose winding device is limited and cannot adapt to laying and recovering of heavy water hoses. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0022] Figure 1 It is the partial structure schematic view of the fire engine provided by the utility model embodiment.

[0023] Figure 2 It is the axonometric schematic view of the water hose winding device provided by the utility model embodiment.

[0024] Figure 3It is the front view of the water hose winding device (the supporting leg assembly is in the retracted state) provided by the embodiment of the utility model.

[0025] Figure 4 It is the front view of the water hose winding device (the supporting leg assembly is in the retracted state) provided by the embodiment of the utility model.

[0026] Figure 5 It is the front view of the fire engine provided by the embodiment of the utility model.

[0027] Figure 6 It is the top view of the fire engine provided by the embodiment of the utility model.

[0028] Reference signs:

[0029] 10, vehicle chassis;

[0030] 20, water hose winding device; 21, supporting seat; 22, supporting leg assembly; 221, first supporting leg part; 222, second supporting leg part; 223, supporting leg box; 23, winding assembly; 231, reel; 232, rotary supporting part; 233, hydraulic motor; 24, hydraulic assembly; 241, hydraulic oil tank; 242, multi-way valve;

[0031] 30, cab; 40, equipment box; 50, supercharging system; 60, guiding mechanism. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme in the utility model will be described clearly and completely below in combination with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the protection scope of the utility model.

[0033] In the description of the embodiments of the present application, it should be explained that unless there is explicit provision and limitation, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For the ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0034] In the embodiments of the present application, unless specifically defined and limited otherwise, a first feature is "on", "under", "above", or "over" a second feature can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over", and "on" the second feature can mean that the first feature is directly above or obliquely above the second feature, or only means that the first feature is higher in horizontal height than the second feature. The first feature "below", "under", and "under" the second feature can mean that the first feature is directly below or obliquely below the second feature, or only means that the first feature is lower in horizontal height than the second feature.

[0035] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0036] Figure 1 is a partial structure schematic view of a fire truck provided by the embodiments of the present application. Figure 2 is an isometric view of a water hose winding device provided by the embodiments of the present application. Figure 3 is a front view of a water hose winding device provided by the embodiments of the present application (the leg assembly is in a retracted state). Figure 4 is a front view of a water hose winding device provided by the embodiments of the present application (the leg assembly is in an expanded state).

[0037] Referring to Figures 1 to 4 , the embodiments of the present application provide a water hose winding device 20, which can be applied to a fire truck and other vehicles, and can also be used as an independent component. The present application takes the water hose winding device 20 on the fire truck as an example for description.

[0038] That is, the fire truck is provided with a water hose winding device 20, i.e. the fire truck comprises a vehicle chassis 10 and a water hose winding device 20.

[0039] The vehicle chassis 10 is mainly used for supporting, mounting the engine and its components and assemblies of the fire fighting truck, shaping the overall appearance of the fire fighting truck, receiving the power of the engine, and making the fire fighting truck move to ensure normal driving. That is, the vehicle chassis 10 is provided with a power device, which includes an engine, a gearbox, a power take-off and the like. It is mainly used for outputting power to drive the fire fighting truck to move and control the corresponding components on the fire fighting truck to work.

[0040] The hose winding device 20 includes a support seat 21, a leg assembly 22 and a winding mechanism. The support seat 21 can be detachably connected to the vehicle chassis 10 by bolts or the like. The support seat 21 is used to support the leg assembly 22 and the winding mechanism of the hose winding device 20. The winding mechanism includes a winding assembly 23 and a hydraulic assembly 24. The support seat 21 is also used to connect the hose winding device 20 to the vehicle chassis 10 of the fire fighting truck. Therefore, the structure of the support seat 21 can be adaptively adjusted to adapt to fire fighting trucks of different specifications.

[0041] The leg assembly 22 can be fixed to the support seat 21 by welding, and the leg assembly 22 can be telescopic along the width direction of the support seat 21 to switch between the retracted state and the extended state. The winding assembly 23 is arranged at the telescopic end of the leg assembly 22 and is adapted to move with the leg assembly 22. The hydraulic assembly 24 is arranged on the leg assembly 22. The hydraulic assembly 24 is connected to the power device, and the power device provides a power source for the hydraulic assembly 24 to generate hydraulic energy, drive the winding assembly 23 to perform winding and unwinding actions, and drive the leg assembly 22 to perform telescopic movement.

[0042] As shown in Figure 3 When the leg assembly 22 is in the retracted state, the leg assembly 22 drives the winding assembly 23 to approach the support seat 21 or the vehicle chassis 10 to reduce the overall width of the fire fighting truck, facilitating normal driving of the fire fighting truck.

[0043] As shown in Figure 4 When the leg assembly 22 is in the extended state, the leg assembly 22 drives the winding assembly 23 to move away from the support seat 21 or the vehicle chassis 10 to increase the gap between the winding assembly 23 and the support seat 21 or the vehicle chassis 10, that is, to increase the overall width of the fire fighting truck. At this time, the hose winding device 20 can perform winding operation, and there is a certain gap between the hose and the vehicle chassis 10 (or the vehicle body of the fire fighting truck), which can avoid interference of the vehicle chassis 10 or the vehicle body of the fire fighting truck on the hose.

[0044] It can be understood that the fire fighting truck provided by the embodiment of the utility model is provided with a water hose winding device 20, the water hose winding device 20 comprises a support seat 21, a supporting leg assembly 22 and a winding mechanism, the support seat 21 is detachably connected to the vehicle chassis 10, the supporting leg assembly 22 is fixed on the support seat 21 and is suitable for stretching and contracting along the width direction of the support seat 21, the winding mechanism comprises a winding assembly 23 and a hydraulic assembly 24, the winding assembly 23 is arranged at the stretching and contracting end of the supporting leg assembly 22, the hydraulic assembly 24 is arranged on the supporting leg assembly 22, the hydraulic assembly 24 is connected with the power device, the power device provides a power source for the hydraulic assembly 24, the hydraulic assembly 24 generates hydraulic energy, drives the winding assembly 23 to perform a winding and unwinding action and drives the supporting leg assembly 22 to perform a stretching and contracting movement.

[0045] In this way, the water hose winding device 20 is powered by the power device of the vehicle chassis 10 of the fire fighting truck, the driving force is provided by the power source of the fire fighting truck itself, the hydraulic assembly 24 generates hydraulic energy, the winding assembly 23 is driven to perform a winding and unwinding action, and the supporting leg assembly 22 is driven to perform a stretching and contracting movement. The water hose winding device 20 can be provided with high power and high torque, so that the water hose winding device 20 can withstand a larger load and torque, and is suitable for winding and unwinding of a heavy water hose, thereby solving the defects that the power of the water hose winding device 20 is limited in the related art and cannot adapt to the laying and recovery of a heavy water hose.

[0046] For example, for a DN200 high-pressure water hose, the weight of the high-pressure water hose is about 2.7-2.8 kg / m, the wall thickness of the high-pressure water hose is 3.5 mm, and the net weight of the high-pressure water hose with a length of 200 meters reaches 560 Kg. After use, the total weight of the used high-pressure water hose can reach 600 Kg. Since the power of the water hose winding device 20 is limited in the related art, it is not possible to wind and unwind a heavy high-pressure water hose. The water hose winding device 20 provided by the utility model is driven by a hydraulic system, which not only can provide a larger driving force and stable power output, but also has a simple hydraulic system, so that the water hose winding device 20 has a small structure size and light weight.

[0047] Continuing to refer to Figure 3 and Figure 4 In the embodiment of the utility model, the supporting leg assembly 22 comprises a first supporting leg part 221 and a second supporting leg part 222.

[0048] The first supporting leg part 221 is fixedly connected with the support seat 21, and is suitable for stretching and contracting in a first direction along the width of the support seat 21 or the vehicle chassis 10. The second supporting leg part 222 is fixedly connected with the first supporting leg part 221, and is suitable for stretching and contracting in a second direction along the width of the support seat 21 or the vehicle chassis 10, the second direction being opposite to the first direction. As shown in Figs. 3 and Figure 4As shown, the first direction is moving left along the width direction of the support base 21 or the vehicle chassis 10, and the second direction is moving right along the width direction of the support base 21 or the vehicle chassis 10.

[0049] The winding assemblies 23 are respectively arranged at the telescopic ends of the first leg part 221 and the second leg part 222, that is, the winding assemblies 23 are provided in two groups, one group of winding assemblies 23 is arranged at the telescopic end of the first leg part 221, and the other group of winding assemblies 23 is arranged at the telescopic end of the second leg part 222. When the water hose winding device 20 is installed on the vehicle chassis 10 of the fire truck, and the first leg part 221 and the second leg part 222 are both extended, the two groups of winding assemblies 23 can be symmetrically arranged on both sides of the fire truck, and two groups of high-pressure water hose winding and unwinding can be simultaneously realized in one driving process.

[0050] The first leg part 221 and the second leg part 222 each include a hydraulic oil cylinder, and the hydraulic oil cylinder of the first leg part 221 and the hydraulic oil cylinder of the second leg part 222 are arranged in layers. That is, the first leg part 221 can be located below the second leg part 222 to save installation space.

[0051] In some embodiments of the utility model, hydraulic locks are arranged on the hydraulic pipelines of the hydraulic oil cylinders, and the hydraulic locks are used for locking the corresponding hydraulic oil cylinders. That is, the hydraulic locks are used to close the hydraulic oil cylinders, so that the oil in the hydraulic oil cylinders cannot be discharged, that is, the hydraulic circuits can be locked to prevent the hydraulic circuits from flowing with oil.

[0052] The hydraulic lock can be composed of two hydraulic control check valves, and the hydraulic lock is generally installed between the throttle valve and the slide valve, so as to quickly lock the hydraulic oil cylinder and make the corresponding hydraulic oil cylinder stay at the required position, thereby realizing stable positioning of the winding assembly 23.

[0053] In some embodiments of the utility model, in order to improve the structural strength of the first leg part 221 and the second leg part 222, the first leg part 221 and the second leg part 222 each further include a leg box 223, the hydraulic oil cylinder is arranged in the corresponding leg box 223, and the leg box 223 of the first leg part 221 and the leg box 223 of the second leg part 222 are welded and fixed.

[0054] The leg box 223 can be a rectangular tubular structure with a certain strength and capable of protecting the hydraulic oil cylinder. The leg box 223 of the first leg part 221 and the leg box 223 of the second leg part 222 are arranged in layers from top to bottom, and are welded and fixed or integrally formed between them.

[0055] Continuing to refer to Figures 2 to 4In the embodiment of the utility model, winding assembly 23 includes reel 231, rotary support component 232 and hydraulic motor 233, rotary support component 232 is equipped in support leg assembly 22, reel 231 is arranged on rotary support component 232, hydraulic motor 233 is connected with hydraulic assembly 24, and hydraulic assembly 24 provides hydraulic energy for hydraulic motor 233, makes hydraulic motor 233 drive rotary support component 232 to rotate, to drive reel 231 to rotate and carry out the action of taking up and paying off.

[0056] Among them, rotary support component 232 includes rotary bearing and worm, rotary bearing is meshed with worm, hydraulic motor 233 is transmission with worm, and reel 231 is equipped in rotary bearing.

[0057] In the embodiment of the utility model, hydraulic assembly 24 includes hydraulic oil tank 241, hydraulic pump and hydraulic pipeline, hydraulic oil tank 241 is equipped on support leg assembly 22, hydraulic pump is connected with power device, and hydraulic pump is used to send the oil liquid in hydraulic oil tank 241 to winding assembly 23 or support leg assembly 22 through corresponding hydraulic pipeline.

[0058] In some embodiments of the utility model, hydraulic assembly 24 further includes multi-way valve 242, and multi-way valve 242 is equipped on the hydraulic pipeline between hydraulic pump and winding assembly 23, can realize stepless speed regulation and speed matching, and improves the efficiency of hose taking up and paying off.

[0059] Multi-way valve 242 can be simple load-sensitive manual multi-way valve 242, and also can be electric control proportional control valve with non-saturation function irrelevant to load and pump flow. The working valve piece of multi-way valve 242 is usually configured in groups, and the inlet valve block is built-in three-way pressure compensation bypass overflow valve, when multi-way valve 242 stops operation, and each valve is in the middle position, the valve bypasses the main oil way flow with compensation pressure, when a valve works, the bypass port of the valve reduces under the action of load pressure, and the required flow is provided according to load pressure.

[0060] Figure 5 It is the front view of the fire fighting truck provided in the embodiment of the utility model. Figure 6 It is the top view of the fire fighting truck provided in the embodiment of the utility model.

[0061] Referring to Figure 5 And Figure 6 In some embodiments of the utility model, the fire fighting truck further includes cab 30, equipment box 40 and booster system 50, cab 30 is equipped at the front end of vehicle chassis 10, hose winding device 20 is equipped at the position close to cab 30 of vehicle chassis 10, equipment box 40 and booster system 50 are sequentially equipped at the rear end of vehicle chassis 10.

[0062] The guide mechanism 60 is rotatably connected to the cab 30, and is unfolded when needed, and is folded under the cab 30 when not in use, so as to avoid affecting the driving of the fire fighting truck.

[0063] The guide mechanism 60 can be a frame structure with a guide groove, and a friction roller can be arranged in the guide groove to change the sliding friction between the water hose and the guide groove into rolling friction between the water hose and the friction roller.

[0064] The fire fighting truck provided by the embodiment of the utility model can be provided with other components on the vehicle chassis 10 in addition to the cab 30, the equipment box 40 and the supercharging system 50.

[0065] The fire fighting truck provided by the embodiment of the utility model can be provided with other components on the vehicle chassis 10 in addition to the cab 30, the equipment box 40 and the supercharging system 50.

[0066] When the water hose is put out, the first leg part 221 and the second leg part 222 are controlled to extend, so that the reel 231 extends.

[0067] When the water hose is put out, the first leg part 221 and the second leg part 222 are controlled to extend, so that the reel 231 extends.

[0068] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A hose winding device, characterized by include: Support base, detachably connected to the vehicle chassis; The outrigger assembly is fixed to the support base and is adapted to extend and retract along the width direction of the support base; The winding mechanism includes a winding assembly and a hydraulic assembly. The winding assembly is located at the telescopic end of the outrigger assembly, and the hydraulic assembly is located on the outrigger assembly. The hydraulic assembly is adapted to be connected to the power unit of the vehicle chassis. The power unit serves as the power source for the hydraulic assembly, enabling the hydraulic assembly to generate hydraulic energy to drive the winding assembly to perform winding and unwinding actions, and to drive the outrigger assembly to perform telescopic movements.

2. The hose reel of claim 1, wherein, The outrigger assembly includes: The first leg component is fixedly connected to the support base, and the first leg component is adapted to extend and retract in a first direction along the width of the support base; The second leg component is fixedly connected to the first leg component. The second leg component is adapted to extend and retract in a second direction along the width of the support base, the second direction being opposite to the first direction. The winding assembly is respectively located at the telescopic ends of the first leg component and the second leg component.

3. The hose reel of claim 2, wherein, Both the first outrigger component and the second outrigger component include hydraulic cylinders, and the hydraulic cylinders of the first outrigger component and the second outrigger component are stacked.

4. The hose reel of claim 3, wherein, Each of the hydraulic cylinders is equipped with a hydraulic lock on its hydraulic pipeline, and the hydraulic lock is used to lock the corresponding hydraulic cylinder.

5. The hose reel of claim 3, wherein, Both the first outrigger component and the second outrigger component further include an outrigger box, and the hydraulic cylinder is disposed in the corresponding outrigger box. The outrigger boxes of the first outrigger component and the outrigger boxes of the second outrigger component are welded and fixed.

6. The hose reel of claim 1, wherein, The winding assembly includes a reel, a slewing support component, and a hydraulic motor. The slewing support component is located on the support leg assembly, the reel is located on the slewing support component, and the hydraulic motor is connected to the hydraulic assembly. The hydraulic assembly provides hydraulic energy to the hydraulic motor, causing the hydraulic motor to drive the slewing support component to rotate, thereby driving the reel to rotate for winding and unwinding operations.

7. The hose reel of claim 6, wherein, The slewing support component includes a slewing bearing and a worm gear. The slewing bearing is meshed with the worm gear, the hydraulic motor is driven by the worm gear, and the reel is located on the slewing bearing.

8. The hose reel of any one of claims 1 to 7, wherein, The hydraulic assembly includes a hydraulic oil tank, a hydraulic pump, and hydraulic lines. The hydraulic oil tank is located on the outrigger assembly, and the hydraulic pump is connected to the power unit. The hydraulic pump is used to deliver the oil in the hydraulic oil tank to the winding assembly or the outrigger assembly through the corresponding hydraulic lines.

9. The hose reel of claim 8, wherein, The hydraulic assembly also includes a multi-way valve, which is located on the hydraulic line between the hydraulic pump and the winding assembly.

10. A fire apparatus characterized by, The device includes a vehicle chassis, a driver's cab, an equipment box, a pressurization system, and a hose reel device as described in any one of claims 1 to 9. The driver's cab is located at the front end of the vehicle chassis, the hose reel device is located on the vehicle chassis near the driver's cab, and the equipment box and the pressurization system are sequentially located at the rear end of the vehicle chassis.

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