Automatic fire hose winding device

Abstract

The utility model relates to fire hose winding technology field especially, and is particularly to a kind of fire hose automatic winding device, including winding frame, transmission assembly and adjustable winding assembly;The side of winding frame is equipped with water hose containing cavity, and the water hose containing cavity is used to temporarily store the fire hose that winding is completed;Transmission assembly is rotatably connected in winding frame, and its power output end is transmission matched with adjustable winding assembly, for driving adjustable winding assembly rotates around its central axis to automatically wind fire hose;The adjustable winding assembly includes baffle, plug-in post and adjustable insert;The adjustable insert is movably inserted with plug-in post along the axial direction of plug-in post, and the adjustable insert is used to adjust the depth of its insertion plug-in post, to adapt to different specifications of fire hose.The utility model provides a kind of fire hose automatic winding device, applicable to the quick winding of multiple aperture water hose in fire scene, save time and labour, effectively improve on-site water supply support operation ability.

Description

Technical Field

[0001] This utility model relates to the field of fire hose winding technology, and in particular to an automatic fire hose winding device. Background Technology

[0002] In current firefighting operations, water supply to fire sites relies on fire hoses of various diameters. However, existing hose reeling methods have significant drawbacks: First, they have poor adaptability. Most automatic reeling devices can only adapt to a single or narrow range of diameters. When faced with large-diameter hoses, special parts need to be replaced, making it impossible to switch quickly in a fire, thus delaying water supply. Second, the reeling efficiency is low. Manually reeling a large-diameter hose takes a lot of time and requires multiple firefighters to work together, resulting in significant physical exertion. Some automatic devices, due to their low transmission efficiency, still cannot meet the emergency needs of a fire. Third, they have limited functionality, lacking forward and reverse rotation capabilities. When hoses become tangled during reeling, manual unwinding is required, further extending the operation time. Fourth, they lack adaptability to fire sites. Some devices rely on external power sources and cannot be used at the edge of a fire or in outdoor areas without power. Furthermore, their mobile structure design is unreasonable, making them prone to jamming or tipping over on complex ground such as gravel or water accumulation. Fifth, the operation is cumbersome. Diameter adjustment requires tools, and control components are scattered, requiring firefighters to frequently switch operating positions, which can easily lead to errors in the tense fire environment. These problems cause a significant amount of manpower and time to reel in the hoses, affecting the timely recovery and reuse of water supply lines at the fire scene. In some cases, exhaustion or delays in reeling can even lead to interruptions in water supply, threatening the safety and efficiency of firefighting operations. Utility Model Content

[0003] Based on this, the purpose of this utility model is to provide an automatic fire hose reeling device, which is suitable for the rapid reeling of multi-diameter fire hoses, saving time and effort, and effectively improving the on-site water supply guarantee operation capability.

[0004] The present invention adopts the following technical solution: An automatic fire hose reel device includes a device body, which comprises a reeling frame, a transmission assembly, and an adjustable reeling assembly. A hose receiving cavity is provided on one side of the reeling frame for temporarily storing the reeled fire hose; the hose receiving cavity is recessed along one side of the reeling frame. The transmission assembly is rotatably connected to the reeling frame, and its power output end is in transmission cooperation with the adjustable reeling assembly, used to drive the adjustable reeling assembly to rotate around its own central axis to automatically reel in the fire hose. The adjustable winding assembly includes a baffle, a plug-in post, and an adjustable insert. The baffle is coaxially fixed to one side of the power output end of the transmission assembly and rotates synchronously with the transmission assembly to axially limit the fire hose during the winding process. There are two plug-in posts, which are symmetrically arranged along the central axis of the baffle on the end face of the baffle away from the transmission assembly. The adjustable insert is movably inserted into the plug-in post along the axial direction of the plug-in post. The adjustable insert is used to adjust its insertion depth into the plug-in post to adapt to different specifications of fire hoses.

[0005] A further improvement to the above technical solution is that convenient placement components are provided on both sides of the hose receiving cavity to guide the fire hose roll into the hose receiving cavity with ease and to temporarily position it.

[0006] A further improvement to the above technical solution is that the convenient placement component includes an arc-shaped guide slope, a support block, and an end limiting groove; one end of the arc-shaped guide slope is smoothly connected to the opening edge of the hose receiving cavity; the support block is fixedly disposed below the arc-shaped guide slope, and one end of it is fixedly connected to the winding frame to support the arc-shaped guide slope; the end limiting groove is smoothly connected to the other end of the arc-shaped guide slope to fit and limit the two ends of the central axis of the fire hose roll to prevent the fire hose roll from shifting axially during the moving process.

[0007] A further improvement to the above technical solution is that the transmission assembly includes a transmission shaft, two bearing seats, a first gear, a second gear, a transmission chain, a drive motor, and a battery; one end of the transmission shaft is fixedly connected to the end face of the baffle opposite to the insertion post; the two bearing seats are respectively sleeved on both ends of the transmission shaft and fixed to the winding frame to support the transmission shaft to rotate around its own axis; the first gear is located between the two bearing seats and is circumferentially fixed to the transmission shaft; the second gear is circumferentially fixed to the output shaft of the drive motor; the transmission chain meshes with the first gear and the second gear respectively; the drive motor is fixed to the inner side wall of the winding frame; the battery is electrically connected to the drive motor to provide working power for the drive motor.

[0008] A further improvement to the above technical solution is that a fixed crossbar is vertically provided at one end of the drive shaft near the baffle, and the ends of the two plug-in pins away from the adjustable plug-in pass through the baffle and are respectively fixedly connected to the two ends of the fixed crossbar.

[0009] A further improvement to the above technical solution is that the battery is electrically connected to an air switch and a control box respectively; the air switch is connected in series in the power supply circuit of the battery and installed on one side of the battery to realize the on / off control of the circuit and overload protection; the control box is fixedly installed on the outer wall of the winding frame to control the start / stop and running status of the drive motor.

[0010] A further improvement to the above technical solution is that the adjustable plug includes a connecting horizontal plate, two insertion sleeves, and an adjusting handle; the two ends of the connecting horizontal plate are respectively connected to the insertion sleeves and the adjusting handle; the insertion sleeves and the insertion post form an axially sliding insertion fit; the adjusting handle is used for the user to hold and operate, so as to drive the insertion sleeves to adjust the insertion depth along the axial direction of the insertion post.

[0011] A further improvement to the above technical solution is that the device body also includes a push handle, which is fixedly connected to one end of the winding frame; and anti-slip sleeves are fitted on both ends of the push handle.

[0012] A further improvement to the above technical solution is that the push handle is an ergonomic arc-shaped handle, and one end of the push handle is provided with a control button. The control button is electrically connected to the control box and is used to control the start, stop, or forward and reverse rotation of the drive motor.

[0013] A further improvement to the above technical solution is that the device body further includes a first moving wheel and a second moving wheel; there are two of each of the first and second moving wheels, and the outer diameter of the first moving wheel is smaller than that of the second moving wheel; the two first moving wheels are symmetrically installed on the bottom of the winding frame near the push handle, serving as a steering support structure; the two second moving wheels are symmetrically installed on the outer side of the winding frame near the water hose accommodating cavity, serving as a load-bearing support structure.

[0014] The beneficial effects of this utility model are as follows: This invention achieves a comprehensive technological breakthrough in multi-diameter hose reel winding scenarios in fire scenes through the coordinated operation of its various components: Firstly, it boasts strong fire scene adaptability. The adjustable winding assembly adapts to hoses of all diameters through depth adjustment, and the transmission assembly supports forward and reverse rotation to handle emergencies such as hose entanglement. The movable wheel set and push handle ensure flexible transfer of the device on complex fire scene ground, meeting multi-position winding needs. Secondly, it offers efficient and labor-saving winding. The efficient transmission of the drive motor and transmission chain allows for winding a large-diameter hose in just 3 minutes, significantly saving time compared to manual winding. The convenient adjustment of the adjustable plug, the labor-saving placement of the convenient components, and the ergonomic push handle all contribute to this. The device reduces firefighters' physical exertion, preventing exhaustion from affecting water supply. Thirdly, it ensures structural reliability and operational safety. Bearing seats and support blocks enhance the stability of the transmission and support structure; air switches ensure electrical safety; baffles and end-positioning grooves ensure neat hose reel winding; and anti-slip sleeves improve operational safety. All components work together to ensure stable operation under high-frequency, high-load conditions in fire scenes. Fourthly, it improves water supply capacity. The neat storage of the hose container, the convenience of integrated operation, and the rapid reeling characteristics shorten the cycle of reeling, standby, and unwinding, ensuring timely recovery and reuse of water supply lines in fire scenes, indirectly enhancing the continuity and flexibility of on-site water supply. Overall, the device effectively solves the problems of poor adaptability, low efficiency, and high physical exertion associated with traditional hose reel winding in fire scenes, providing key technical support for firefighting operations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the automatic fire hose reel device of this utility model; Figure 2 for Figure 1 A structural schematic diagram of the automatic fire hose reel device from another angle; Figure 3 for Figure 2 A magnified view of circle A of the automatic fire hose reel device.

[0016] The numbers on the map are: 10. Device body; 11. Push handle; 12. Anti-slip sleeve; 13. Control button; 14. First moving wheel; 15. Second moving wheel; 20. Rewinding frame; 21. Water hose receiving cavity; 30. Transmission assembly; 31. Drive shaft; 32. Bearing housing; 33. First gear; 34. Second gear; 35. Transmission chain; 36. Drive motor; 37. Fixed crossbar; 40. Adjustable winding assembly; 41. Baffle; 42. Insertion post; 50. Adjustable insert; 51. Connecting cross plate; 52. Inserting sleeve; 53. Adjusting handle; 60. Convenient component placement; 61. Curved guide slope; 62. Support block; 63. End limiting groove; 70. Storage battery; 71. Air switch; 72. Control box. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0018] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] like Figures 1 to 3The diagram illustrates an embodiment of the present invention, relating to an automatic fire hose reel device. The device includes a main body 10, comprising a reeling frame 20, a transmission assembly 30, and an adjustable reeling assembly 40. A hose receiving cavity 21 is provided on one side of the reeling frame 20 for temporarily storing the reeled fire hose. The hose receiving cavity 21 is recessed along one side of the reeling frame 20. The transmission assembly 30 is rotatably connected to the reeling frame 20, and its power output end is in transmission cooperation with the adjustable reeling assembly 40, driving the adjustable reeling assembly 40 to rotate around its central axis for automatic reeling. Fire hose; the adjustable winding assembly 40 includes a baffle 41, a plug-in post 42, and an adjustable plug 50; the baffle 41 is coaxially fixed to one side of the power output end of the transmission assembly 30 and rotates synchronously with the transmission assembly 30, used to axially limit the fire hose during the winding process; two plug-in posts 42 are provided, and the two plug-in posts 42 are symmetrically arranged along the central axis of the baffle 41 on the end face of the baffle 41 away from the transmission assembly 30; the adjustable plug 50 is movably inserted into the plug-in post 42 along the axial direction of the plug-in post 42, and the adjustable plug 50 is used to adjust its insertion depth into the plug-in post 42 to adapt to different specifications of fire hoses.

[0021] Specifically, the device body 10 integrates a winding frame 20, a transmission assembly 30, and an adjustable winding assembly 40 to construct the core architecture for winding multi-diameter hoses in fire situations. The recessed hose receiving cavity 21 on one side of the winding frame 20 can temporarily and neatly store 65mm and 150mm diameter hoses that have been wound up, preventing hose scattering and causing disruption to the water supply lines, thus ensuring the continuity of on-site water supply operations. The transmission assembly 30 and the adjustable winding assembly 40 are designed to drive the adjustable winding assembly 40 to rotate stably around its axis, and can also achieve forward and reverse multi-directional functions through control. When local entanglement occurs during hose winding, the reverse function can quickly release the jam, adapting to complex fire operating environments. The adjustable winding assembly 40 contains two symmetrically arranged insertion posts 42. With the adjustable plug 50 that moves along the axis, the device can accurately adapt to 65mm and 150mm diameter hoses by adjusting the insertion depth. This breaks the limitation of traditional devices that can only adapt to a single or narrow range of diameters, and meets the needs of different water supply scenarios (such as main water supply and auxiliary water supply) in fire scenes for winding multiple diameter hoses. The coaxially fixed baffle 41 can axially limit the hose during winding, ensuring that the hose does not deviate during the winding process. Even 150mm large diameter hoses can be tightly wound, laying the foundation for subsequent rapid water supply deployment. At the same time, the automatic winding driven by the transmission component 30 significantly reduces the physical exertion of firefighters compared to manual winding. It only takes about 3 minutes to wind up a 50-meter 150mm hose, which significantly saves fire scene operation time and indirectly improves the efficiency of on-site water supply guarantee.

[0022] like Figure 1 and Figure 3 As shown, convenient placement components 60 are provided on both sides of the hose receiving cavity 21 to guide the fire hose roll into the hose receiving cavity 21 with minimal effort and to temporarily position it. Specifically, the convenient placement components 60 are provided to guide the hose roll into the hose receiving cavity 21 with minimal effort, especially for heavy 150mm diameter hoses, after it has been rolled up in the fire scene, eliminating the need for firefighters to lift and place it, further reducing physical exertion. At the same time, the components can temporarily position the hose roll after it has been moved in, preventing the hose roll from rolling and scattering due to equipment movement or personnel movement in the fire scene, ensuring that the hose is always in a neat and ready-to-use state. When an emergency water supply is needed, the hose can be quickly taken out of the receiving cavity and unfolded, shortening the water supply preparation time and indirectly strengthening the on-site water supply guarantee capability. It is especially suitable for the rapid operation rhythm of rolling, standby, and unfolding in the fire scene.

[0023] like Figure 3 As shown, the convenient placement component 60 includes an arc-shaped guide slope 61, a support block 62, and an end limiting groove 63. One end of the arc-shaped guide slope 61 is smoothly connected to the opening edge of the hose receiving cavity 21. The support block 62 is fixedly disposed below the arc-shaped guide slope 61, and one end of it is fixedly connected to the winding frame 20 to support the arc-shaped guide slope 61. The end limiting groove 63 smoothly engages with the other end of the arc-shaped guide slope 61 to fit and limit the two ends of the central axis of the fire hose roll to prevent the fire hose roll from shifting axially during the insertion process. Specifically, one end of the arc-shaped guide slope 61 smoothly transitions to the opening of the hose receiving cavity 21, allowing even large-diameter 50-meter or 150mm hoses to move smoothly into the cavity along the slope, avoiding hose jamming or wear due to abrupt transition surfaces and ensuring the continuity of the winding and storage process in the fire. The support block 62 below the arc-shaped guide slope 61 is fixedly connected to the winding frame 20, providing stable load-bearing for the guide slope. It is not easily deformed even when bearing the weight of a 150mm hose roll, ensuring the reliability of the structure during high-frequency use in the fire. The end limiting groove 63, which connects to the other end of the guide slope, can fit and limit the two ends of the hose roll's central axis, completely preventing axial displacement during the hose roll's movement. Especially for single or double-roll winding scenarios (such as simultaneously winding two 65mm hose rolls), it can ensure that multiple hose rolls are arranged in an orderly manner in the receiving cavity, avoiding tangling and further improving the efficiency of hose management in the fire.

[0024] like Figure 1 and Figure 2As shown, the transmission assembly 30 includes a transmission shaft 31, two bearing seats 32, a first gear 33, a second gear 34, a transmission chain 35, a drive motor 36, and a battery 70. One end of the transmission shaft 31 is fixedly connected to the end face of the baffle 41 opposite to the insertion post 42. The two bearing seats 32 are respectively sleeved on both ends of the transmission shaft 31 and fixed to the winding frame 20 to support the transmission shaft 31 to rotate around its own axis. The first gear 33 is disposed between the two bearing seats 32 and is circumferentially fixed to the transmission shaft 31. The second gear 34 is circumferentially fixed to the output shaft of the drive motor 36. The transmission chain 35 meshes with the first gear 33 and the second gear 34 respectively. The drive motor 36 is fixed to the inner side wall of the winding frame 20. The battery 70 is electrically connected to the drive motor 36 to provide working power to the drive motor 36. Specifically, the drive motor 36 provides sufficient power to the device. Its output shaft is circumferentially fixed to the second gear 34, and together with the first gear 33 (circumferentially fixed to the drive shaft 31) and the meshing transmission chain 35, it forms a highly efficient and stable gear and chain transmission structure. This structure boasts high transmission efficiency and low power loss, ensuring stable torque output from the drive shaft 31. Even when driving a 150mm hose reel, insufficient power is unlikely. Two bearing seats 32 are respectively fitted onto both ends of the drive shaft 31 and fixed to the reeling frame 20, reducing radial runout during drive shaft 31 rotation, lowering frictional losses, and ensuring... The stability of the drive shaft 31 during long-term high-speed rotation (adapting to the needs of rapid winding) avoids extending the winding time due to transmission jamming; the battery 70, which is electrically connected to the drive motor 36, provides independent power, freeing it from the constraints of external power supply in the fire scene, allowing the device to be used flexibly in areas without power, such as next to fire trucks and at the edge of the fire scene, ensuring the winding needs of water hoses in multiple locations and further improving the flexibility of on-site water supply; at the same time, the drive motor 36 can be controlled to rotate forward and backward, and together with the transmission chain 35 and gears, it provides multi-directional rotational power for the adjustable winding assembly 40, adapting to complex winding scenarios in the fire scene.

[0025] like Figure 1As shown, a fixed crossbar 37 is vertically provided at one end of the drive shaft 31 near the baffle 41. The ends of the two insertion posts 42 away from the adjustable plug 50 pass through the baffle 41 and are fixedly connected to both ends of the fixed crossbar 37. Specifically, the fixed crossbar 37, by being fixedly connected to both ends of the two insertion posts 42 that pass through the baffle 41, forms a rigid integral structure between the insertion posts 42 and the drive shaft 31. Compared with the design where the insertion posts 42 are connected to the baffle 41 separately, the support strength is greatly improved. When winding a 150mm large-diameter water hose, it can withstand the tension impact of the water hose, preventing the insertion posts 42 from loosening or deforming, ensuring the structural stability of the adjustable winding assembly 40 during the rapid winding process, providing structural guarantee for the efficient operation of winding 50 meters of 150mm water hose in 3 minutes, and also providing support for symmetrical force when winding double rolls (such as two 65mm water hoses), avoiding winding deviation caused by unilateral force.

[0026] like Figure 1 As shown, the storage battery 70 is electrically connected to an air switch 71 and a control box 72 respectively; the air switch 71 is connected in series in the power supply circuit of the storage battery 70 and installed on one side of the storage battery 70, and is used to realize the on-off control of the circuit and overload protection; the control box 72 is fixedly installed on the outer side wall of the winding frame 20, and is used to control the start-stop and running status of the drive motor 36. Specifically, the air switch 71, electrically connected to the battery 70, is connected in series in the power supply circuit. In the event of an overload or short circuit due to factors such as humidity or aging wiring in a fire, it can automatically disconnect the drive motor 36 and the battery 70 to protect them, preventing electrical faults from affecting the winding operation and ensuring the electrical safety of the device in complex fire environments, thus guaranteeing uninterrupted water supply. The control box 72, fixed to the outer wall of the winding frame 20, can centrally control the start / stop and forward / reverse functions of the drive motor 36. Firefighters can adjust the winding state through the control box 72 without touching the transmission components 30, making operation convenient and safe. Especially in emergency winding scenarios in a fire, it can quickly switch between forward and reverse to release jams or pause winding to deal with emergencies, further improving operational efficiency and safety, and indirectly ensuring a smooth on-site water supply process. In this embodiment, the control box 72 is an existing mature control system, and its structure and wiring will not be described in detail.

[0027] like Figure 1 and Figure 2As shown, the adjustable plug-in 50 includes a connecting horizontal plate 51, two insertion sleeves 52, and an adjusting handle 53; the two ends of the connecting horizontal plate 51 are respectively connected to the insertion sleeves 52 and the adjusting handle 53; the insertion sleeves 52 and the insertion post 42 form an axially sliding insertion fit; the adjusting handle 53 is used for the user to hold and operate, so as to drive the insertion sleeves 52 to adjust the insertion depth along the axial direction of the insertion post 42. Specifically, the connecting plate 51 links the two insert sleeves 52 together, ensuring that the insertion depth of the two insert sleeves 52 changes synchronously during adjustment, avoiding the positioning deviation of the hose caused by unilateral adjustment. Even when adapting to 150mm large-diameter or 65mm small-diameter hoses, it can accurately align with the inner circle of the hose, ensuring the coaxiality of the hose center during winding. The axial sliding fit between the insert sleeve 52 and the insert post 42 ensures a smooth and unobstructed adjustment process. Firefighters can easily drive the insert sleeve 52 to adjust the depth by holding the adjustment handle 53 without the need for tools, adapting to the need for rapid diameter switching in the fire scene (such as switching from winding a 150mm main hose to a 65mm auxiliary hose). The user-friendly design of the adjustment handle 53 provides a convenient point for applying force, reducing the physical exertion of the adjustment operation, ensuring that firefighters can quickly complete the diameter adaptation, saving preparation time for winding a 50-meter 150mm hose in 3 minutes. In this embodiment, after the insertion sleeve 52 and the insertion post 42 are adjusted, the insertion sleeve 52 and the insertion post 42 can be locked by the existing locking structure to prevent movement during winding.

[0028] like Figure 1 and Figure 2 As shown, the device body 10 also includes a push handle 11, which is fixedly connected to one end of the winding frame 20; anti-slip sleeves 12 are fitted on both ends of the push handle 11. Specifically, the push handle 11, which is fixedly connected to the winding frame 20, provides a convenient force application structure for the movement of the device in the fire scene. Firefighters can easily push the device to move between different areas of the fire scene (such as water supply points and fire extinguishing points), adapting to the needs of multi-location hose winding and ensuring timely retrieval of hoses along the water supply line; the anti-slip sleeves 12 at both ends of the push handle 11 can increase the friction between the hand and the handle, so that even if the firefighter is wearing protective gloves or has sweaty hands, he can hold it stably and avoid slipping during the pushing process, which would cause the device to tip over. Especially in the wet and slippery ground environment of the fire scene, this further improves the safety and stability of the device movement, ensures that the winding operation is not interrupted, and indirectly ensures the water supply guarantee capability.

[0029] like Figure 1As shown, the push handle 11 is an ergonomically designed arc-shaped handle. One end of the push handle 11 is equipped with a control button 13, which is electrically connected to the control box 72. The control button 13 is used to control the start, stop, or forward and reverse rotation of the drive motor 36. Specifically, the ergonomically designed arc-shaped push handle 11 is adapted to the firefighter's grip posture, ensuring even force distribution on the hand during prolonged pushing of the device, reducing fatigue. This is especially beneficial in fire scenes where long-distance device transfer is required (such as retrieving multiple reels of water hose along a water supply line), reducing physical exertion. The control button 13 at one end of the push handle 11 is electrically connected to the control box 72, allowing firefighters to directly control the start, stop, and forward / reverse rotation of the drive motor 36 while pushing the device. This enables integrated operation of movement, winding, and adjustment without the need for additional trips to the control box 72. For example, if the water hose becomes tangled during transfer, the button can be pressed immediately to initiate reverse rotation to unblock it, significantly simplifying the operation process and saving time when winding a 50-meter, 150mm water hose, further improving fire scene operation efficiency.

[0030] like Figure 1 and Figure 2 As shown, the device body 10 also includes a first movable wheel 14 and a second movable wheel 15; there are two of each of the first movable wheel 14 and the second movable wheel 15, and the outer diameter of the first movable wheel 14 is smaller than the outer diameter of the second movable wheel 15; the two first movable wheels 14 are symmetrically installed on the bottom of the winding frame 20 near the push handle 11, which is a steering support structure; the two second movable wheels 15 are symmetrically installed on the outer side of the winding frame 20 near the water hose receiving cavity 21, which is a load-bearing support structure. Specifically, the two first moving wheels 14 and the two second moving wheels 15 provide support for the movement of the device on complex ground surfaces in a fire (such as gravel ground or waterlogged ground): the first moving wheels 14 have a smaller outer diameter and are symmetrically installed at the bottom near the push handle 11, forming a flexible steering support structure. When firefighters push the handle 11, they can easily adjust the direction of the device, making it easy to accurately locate the winding position in narrow fire passages or around fire trucks, adapting to the winding needs of multiple scenarios; the second moving wheels 15 have a larger outer diameter and are installed on the outer side near the hose receiving cavity 21, forming a strong load-bearing support structure, which can stably support the weight of the device body 10 and the multiple rolls of hose in the receiving cavity, avoiding wheel deformation or damage. At the same time, the outer installation increases the support span of the device, preventing it from tipping over during movement, ensuring the stable movement of the device in the fire, and providing a foundation for efficient winding and water supply guarantee.

[0031] The working principle of this utility model is as follows: In use, firefighters push the device using the ergonomically designed curved handle 11, adjusting the direction with the first moving wheel 14 near the bottom of the handle end of the winding frame 20, and using the second moving wheel 15 near the outer side of the hose receiving cavity 21. The device is then moved to the hose to be wound at the fire scene. The anti-slip sleeves 12 at both ends of the handle 11 ensure a stable grip. Depending on the hose diameter, the firefighter holds the adjustment handle 53 of the adjustable insert 50, which, through the connecting crossbar 51, drives the two insertion sleeves 52 to slide axially along the insertion post 42, adjusting the insertion depth to match the hose's inner diameter. The insertion post 42 is rigidly connected to the drive shaft 31 via the fixed crossbar 37, ensuring structural stability after adjustment. The inner loop of the hose is then fitted over the insertion post 42 and the insertion sleeve 52. The firefighter presses the control button 13 at one end of the push handle 11. The control button 13 sends a signal to the control box 72 fixed to the outer wall of the winding frame 20. 2. The drive motor 36 on the inner wall of the drive winding frame 20 starts, and the battery 70 provides independent power to the motor. The air switch 71 connected in series with the power supply circuit provides real-time protection. The output shaft of the drive motor 36 drives the second gear 34 to rotate. The second gear 34 drives the first gear 33 to rotate through the transmission chain 35. The transmission shaft 31 rotates stably under the support of the bearing seats 32 at both ends, driving the baffle 41, which is fixed to the same axis, to rotate synchronously. The baffle 41 axially limits the water tape during winding, realizing automatic winding. If the water tape gets tangled, the motor is switched to reverse through the control box 72 to release the jam. After winding is completed, the motor is turned off, and the water tape roll is pushed into the water tape receiving cavity 21 along the arc guide slope 61. The end limiting groove 63 fits and limits the two ends of the water tape roll center axis to prevent displacement. Subsequently, the device can be pushed to the next winding point, or the water tape can be taken out from the receiving cavity and quickly unfolded for water supply, completing the winding and protection cycle.

[0032] The above description merely illustrates the preferred technical solution of this utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. An automatic fire hose reel device, characterized in that, The device includes a main body comprising a winding frame, a transmission assembly, and an adjustable winding assembly. A hose receiving cavity is provided on one side of the winding frame for temporarily storing the wound fire hose. This cavity is recessed along one side of the winding frame. The transmission assembly is rotatably connected to the winding frame, and its power output end is in transmission cooperation with the adjustable winding assembly, driving the adjustable winding assembly to rotate around its central axis for automatic winding of the fire hose. The adjustable winding assembly includes a baffle, insertion posts, and an adjustable insert. The baffle is coaxially fixed to one side of the power output end of the transmission assembly and rotates synchronously with the transmission assembly, used to axially limit the fire hose during the winding process. Two insertion posts are provided, symmetrically arranged along the central axis of the baffle on the end face of the baffle opposite to the transmission assembly. The adjustable insert is axially movable and inserted into the insertion posts, adjusting its insertion depth to accommodate different specifications of fire hoses.

2. The automatic fire hose reel device according to claim 1, characterized in that, The hose receiving cavity is equipped with convenient placement components on both sides, which are used to guide the fire hose roll into the hose receiving cavity with ease and to temporarily position it.

3. The automatic fire hose reel device according to claim 2, characterized in that, The convenient placement component includes an arc-shaped guide slope, a support block, and an end limiting groove. One end of the arc-shaped guide slope is smoothly connected to the opening edge of the hose receiving cavity. The support block is fixed below the arc-shaped guide slope, and one end of it is fixedly connected to the winding frame to support the arc-shaped guide slope. The end limiting groove smoothly engages with the other end of the arc-shaped guide slope to fit and limit the two ends of the central axis of the fire hose reel, so as to prevent the fire hose reel from shifting axially during the insertion process.

4. The automatic fire hose reel device according to claim 1, characterized in that, The transmission assembly includes a drive shaft, two bearing seats, a first gear, a second gear, a transmission chain, a drive motor, and a battery. One end of the drive shaft is fixedly connected to the end face of the baffle opposite to the insertion post. The two bearing seats are respectively sleeved on both ends of the drive shaft and fixed to the winding frame to support the drive shaft to rotate around its own axis. The first gear is located between the two bearing seats and is circumferentially fixed to the drive shaft. The second gear is circumferentially fixed to the output shaft of the drive motor. The transmission chain meshes with the first gear and the second gear respectively. The drive motor is fixed to the inner side wall of the winding frame. The battery is electrically connected to the drive motor to provide power to the drive motor.

5. The automatic fire hose reel device according to claim 4, characterized in that, The drive shaft is vertically fixed with a crossbar at one end near the baffle, and the two plug-in pins pass through the baffle at the ends away from the adjustable plug, and are respectively fixedly connected to the two ends of the fixed crossbar.

6. The automatic fire hose reel device according to claim 4, characterized in that, The battery is electrically connected to an air switch and a control box respectively; the air switch is connected in series in the power supply circuit of the battery and installed on one side of the battery to realize the on / off control of the circuit and overload protection; the control box is fixedly installed on the outer wall of the winding frame to control the start / stop and running status of the drive motor.

7. The automatic fire hose reel device according to claim 1, characterized in that, The adjustable insert includes a connecting plate, two insertion sleeves, and an adjusting handle; the two ends of the connecting plate are respectively connected to the insertion sleeves and the adjusting handle; the insertion sleeves and the insertion post form an axially sliding insertion fit; the adjusting handle is used for the user to hold and operate, so as to drive the insertion sleeves to adjust the insertion depth along the axial direction of the insertion post.

8. The automatic fire hose reel device according to claim 1, characterized in that, The device body also includes a push handle, which is fixedly connected to one end of the winding frame; both ends of the push handle are fitted with anti-slip sleeves.

9. The automatic fire hose reel device according to claim 8, characterized in that, The push handle is an ergonomically designed arc-shaped handle. One end of the push handle is equipped with a control button, which is electrically connected to the control box. The control button is used to control the start, stop, or forward and reverse rotation of the drive motor.

10. The automatic fire hose reel device according to claim 1, characterized in that, The device body also includes a first movable wheel and a second movable wheel; there are two of each of the first and second movable wheels, and the outer diameter of the first movable wheel is smaller than that of the second movable wheel; the two first movable wheels are symmetrically installed on the bottom of the winding frame near the push handle, which is a steering support structure; the two second movable wheels are symmetrically installed on the outer side of the winding frame near the water hose accommodating cavity, which is a load-bearing support structure.

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