Hydraulic reel for winding and unwinding water hose

Abstract

The utility model relates to a hydraulic reel for winding and unwinding a water hose, and belongs to the technical field of fire fighting equipment. The hydraulic reel is mainly composed of a main frame, a reel body, a winding auxiliary mechanism, a laying guide mechanism and the like, and efficient winding, unwinding and protection of a water hose are achieved. The hydraulic motor is used for driving, the chain transmission mechanism is matched, forward and reverse rotation of the reel can be flexibly controlled, and rapid laying and recycling of the water hose are completed. And meanwhile, the winding auxiliary mechanism provides pressing, guiding and cleaning functions, and smoothness and cleanliness of the water hose in the winding and unwinding process are guaranteed. In addition, the laying guide mechanism and the bottom roller assembly effectively prevent the water hose from being scratched and abraded in the laying process, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The present application relates to the field of fire fighting equipment, and in particular to a water hose retracting and releasing hydraulic reel. Background Art

[0002] The fire hose is an important tool used in fire fighting and rescue or in combating drought and flood. It is a hose used to transport flame-retardant liquids such as high-pressure water or foam. The fire hose is made of polymer materials such as polyurethane. There are metal joints at both ends of the fire hose, which can be connected to another hose to extend the distance or to a nozzle to increase the liquid spray pressure. For the convenience of storage, retrieval and transportation, the hose is rolled into a disc when not in use. When in use, the hose is opened and connected to a fire hydrant or fire truck. After use, the hose needs to be manually reeled in.

[0003] In recent years, there has been a great demand for long-distance laying and recycling of small-diameter hoses, especially for forest and grassland fires. The hoses are required to have high working pressure and wear resistance, and double-layer hoses or double-sided polyurethane hoses are generally used. Conventional reeling devices use a conveyor belt reeling structure, which is not effective for reeling in small-diameter hoses (≤DN150). Small-diameter hoses are light in weight and small in size. The conveyor belt structure has low friction and is prone to slipping. After reeling, they are prone to cross-stacking when stored in the car box, and the hoses cannot be compacted, occupying a large space and having low utilization of the car box. When laying, they are prone to stacking and falling due to cross-stacking, affecting the efficiency of laying operations. Utility Model Content

[0004] In order to improve the efficiency of water hose retraction and release, the present application provides a water hose retraction and release hydraulic reel.

[0005] The present application provides a water hose retracting and releasing hydraulic reel adopts the following technical solution:

[0006] A water hose retracting and releasing hydraulic reel, comprising:

[0007] A support frame, the support frame comprising a bottom support, side supports located on both sides of the bottom support and arranged perpendicularly to the bottom support, and a crossbeam arranged between the two side supports, the crossbeam comprising a first crossbeam for retracting and releasing a water hose and a second crossbeam arranged opposite to the first crossbeam;

[0008] A reel assembly, the reel assembly is mounted on the support frame, and includes a main shaft mounted above the support frame, a single reel sleeved on the main shaft, and a plurality of single reels are arranged along the main length direction, as well as shaft seats arranged at both ends of the main shaft, an end cover fixedly arranged on a side of the shaft seat away from the single reel, and a thrust bearing arranged between two adjacent single reels;

[0009] A winding auxiliary mechanism, the winding auxiliary mechanism is arranged on the support frame and located on one side of the first crossbeam, comprising a main frame, the main frame is provided with a guide roller through which the water supply belt passes, and a cleaning member, the guide roller comprises a vertical guide roller and a transverse guide roller, two of the vertical guide roller and two of the transverse guide roller are provided, and form a space through which the water supply belt passes, the cleaning member comprises an upper nozzle arranged above the transverse guide roller and a lower nozzle arranged below the transverse guide roller;

[0010] A laying guide mechanism, which is arranged above the winding auxiliary mechanism and includes a bottom guide roller and side guide rollers arranged on both sides above the bottom guide roller;

[0011] A driving device drives the single reel to rotate to complete the reeling and unreeling of the water hose.

[0012] By adopting the above technical scheme, when the water hose is wound up by the above device, a space is formed by the vertical guide roller and the horizontal guide roller, and upper and lower nozzles are provided to clean the water hose. After cleaning, the water hose can be stored cleanly to prevent corrosion and extend its service life. Then, the driving device is used to drive the single reel to rotate to complete the winding of the water hose. When the water hose is laid, the winding direction of the water hose is guided to prevent scratches on the water hose. The driving device is used to retract and release the water hose, thereby improving the efficiency and convenience of the water hose retracting and releasing work.

[0013] Preferably, the second cross beam is detachably connected to the support frame, and the second cross beam is detachably connected to the side bracket via a connecting angle piece.

[0014] By adopting the above technical solution, the second crossbeam is set to a structure that is detachably connected to the side bracket through the connecting angle piece. When installing the reel assembly, the second crossbeam is first removed to facilitate the installation of the reel assembly.

[0015] Preferably, the single reel comprises two wheel rims arranged opposite to each other, a pressure plate, a roller shield arranged between the two wheel rims and a connecting sleeve hub, a sliding bearing is installed in the connecting sleeve hub and is rotatably connected to the main shaft, the roller shield is sleeved on the outside of the connecting sleeve hub and is fixedly connected to the wheel rim, and the lengths of the roller shield and the connecting sleeve hub are adjustable;

[0016] The roller guard is provided with a plane with threaded holes, a pressure plate is fixedly connected to the roller guard by bolts, and a traction water hose is provided between the pressure plate and the roller guard.

[0017] By adopting the above technical solution, the pressure plate and the roller guard are fixedly connected by bolts, ensuring that the traction water hose is firmly clamped between the pressure plate and the roller guard to prevent sliding or deviation during the water hose retraction and release process. At the same time, through the adjustable length of the roller guard and the connecting sleeve hub, the single reel can adapt to water hoses of different diameters, thereby improving the versatility and flexibility of the reel.

[0018] Preferably, the winding auxiliary mechanism also includes a moving part, which is arranged between the main frame and the support frame, including a slide rail fixed on the support frame and a slider arranged on the main frame, and a first driving part arranged on the support frame, and the first driving part drives the main frame to move laterally.

[0019] By adopting the above technical solution, the first driving member drives the main frame to move horizontally, so that the position of the winding auxiliary mechanism can be easily adjusted, so that the equipment can adapt to water hoses of different lengths, or be adjusted according to the on-site space layout, thereby optimizing space utilization.

[0020] Preferably, the first driving member is configured as a screw driven by a hydraulic motor, a moving block rotating with the screw is provided on the main frame, and the first driving member is also provided with an encoder.

[0021] By adopting the above technical solution, the position of the moving block can be accurately controlled through the combination of the lead screw driven by the hydraulic motor and the encoder. The encoder can provide real-time feedback on the rotation amount of the lead screw and the position of the moving block, thereby ensuring the accuracy of the operation and improving the winding efficiency.

[0022] Preferably, the winding auxiliary mechanism also includes a second driving member, which is arranged on the main frame and located above the transverse guide roller. The output shaft of the second driving member is connected to the transverse guide roller above and drives the transverse guide roller to move up and down.

[0023] By adopting the above technical solution and setting a second driving member, the upper transverse guide roller is driven to move up and down, so that the water hose can be compacted when winding. The compacted water hose can be kept neat and easy to store.

[0024] Preferably, the driving device includes a third driving member, a first sprocket, a second sprocket and a chain, the third driving member is arranged on the bottom bracket, and its output end is connected to the first sprocket, the second sprocket is arranged on one side of the single reel and fixedly connected to the single reel, the chain is connected to the first sprocket and the second sprocket, and the diameter of the second sprocket is larger than the diameter of the first sprocket.

[0025] By adopting the above technical solution, the third driving member is connected to the first sprocket, the first sprocket and the second sprocket are connected by a chain, and the second sprocket is connected to the single reel, thereby driving the single reel to rotate. Through this chain and sprocket transmission setting, the driving device can achieve efficient power transmission, reduce energy loss, and improve the working efficiency of the overall equipment. It has strong stability, simple structure and easy maintenance. The diameter of the second sprocket is larger than that of the first sprocket, which can achieve higher torque output, natural deceleration effect, improve transmission smoothness, and extend the service life of the chain and sprocket.

[0026] Preferably, a limit bracket corresponding to the single reel is arranged above the bottom bracket, and the limit bracket is installed on the side of the bottom bracket close to the first sprocket, and includes a nylon roller, a rotating shaft and a mounting bracket, and is used to prevent the reel wheel rim from expanding and deforming and causing wear.

[0027] By adopting the above technical solution, the expansion and deformation of the reel rim can be prevented from causing wear of the rim and the chain.

[0028] Preferably, a roller assembly is arranged below the support frame, the roller assembly comprises a plurality of rollers, and the axis of the roller is arranged parallel to the axis of the main shaft.

[0029] By adopting the above technical solution, it is possible to prevent the water hose from being worn or piled up and squeezed, thereby reducing sliding resistance.

[0030] Preferably, the third driving member is configured as a hydraulic motor, and further includes a control valve and a hydraulic lock. The control valve is used to control the oil circuit direction of the hydraulic motor to achieve forward and reverse rotation of the reel, and the hydraulic lock can lock the reel during driving.

[0031] By adopting the above technical solution, the operator can accurately control the oil circuit direction of the hydraulic motor through the control valve, thereby realizing flexible control of the forward and reverse rotation of the reel. When the reel needs to be locked, the hydraulic lock can effectively prevent the reel from accidentally rotating, avoiding safety accidents that may be caused by this. At the same time, it also increases the stability and reliability of the entire hydraulic system. The forward and reverse rotation and locking of the reel can be controlled by simply operating the control valve. The operation is simple and easy, reducing the difficulty of the operator's work.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] 1. When the water hose is wound up by the above device, the water hose forms a space through the vertical guide roller and the horizontal guide roller, and the upper and lower nozzles are arranged to clean the water hose. After cleaning, the water hose can be stored cleanly to prevent corrosion and extend the service life. Then, the driving device is used to drive the single reel to rotate to complete the winding of the water hose. When the water hose is laid, the winding direction of the water hose is guided to prevent the water hose from being scratched. The driving device is used to retract and release the water hose, which improves the efficiency and convenience of the water hose retracting and releasing work;

[0034] 2. The pressure plate and the roller guard are fixedly connected by bolts to ensure that the traction hose is firmly clamped between the pressure plate and the roller guard to prevent sliding or deviation during the hose retraction and release process. At the same time, the roller guard with adjustable length and the connecting sleeve hub enable a single reel to adapt to hoses of different diameters, thereby improving the versatility and flexibility of the reel. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of a water hose retracting hydraulic reel structure of the present application Figure 1 .

[0036] Figure 2 This is a schematic diagram of a water hose retracting hydraulic reel structure of the present application Figure 2 .

[0037] Figure 3 It is a schematic diagram of the support frame structure.

[0038] Figure 4 It is a schematic diagram of the reel assembly structure.

[0039] Figure 5 This is an exploded view of a single reel.

[0040] Figure 6 It is a schematic diagram of the structure of the winding auxiliary mechanism.

[0041] Explanation of reference numerals: 1. Support frame; 11. Bottom bracket; 12. Side bracket; 121. Lifting ear; 13. Crossbeam; 131. First crossbeam; 132. Second crossbeam; 133. Connecting angle piece; 2. Reel assembly; 21. Main shaft; 22. Single reel; 221. Wheel rim; 222. Press plate; 223. Drum guard; 224. Connecting sleeve hub; 23. Axle seat; 24. End cover; 25. Thrust bearing; 26. Nylon spacer; 3. Reeling auxiliary mechanism; 31. Main frame; 32. Guide roller; 321. Vertical guide roller; 322. Horizontal guide roller; 33. Cleaning part; 331. Top spray head; 332, lower nozzle; 34, moving part; 341, slide rail; 342, slider; 343, first driving part; 3431, lead screw; 3432, moving block; 3433, encoder; 3434, coupling; 35, second driving part; 4, laying guide mechanism; 41, bottom guide roller; 42, side guide roller; 5, driving device; 51, third driving part; 511, control valve; 512, hydraulic lock; 52, first sprocket; 53, second sprocket; 54, chain; 6, limit bracket; 61, nylon roller; 62, rotating shaft; 63, mounting bracket; 7, roller assembly; 71, roller. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-6 This application is described in further detail.

[0043] The present application embodiment discloses a water hose retracting and releasing hydraulic reel. Figure 1 The water hose retracting and releasing hydraulic reel includes a support frame 1, a reel assembly 2, a reeling auxiliary mechanism 3, a laying guide mechanism 4 and a driving device 5.

[0044] Reference Figure 1 , Figure 3 Specifically, the support frame 1 includes a bottom bracket 11, a side bracket 12 and a crossbeam 13. The bottom bracket 11 is used as the foundation of the entire device and is firmly placed on the ground; the side brackets 12 are vertically arranged on both sides of the bottom bracket 11 to provide stable support; the crossbeam 13 is arranged between the two side brackets 12, including a first crossbeam 131 and a second crossbeam 132 arranged opposite thereto, which is used to mount and fix other components. The second crossbeam 132 is arranged to be detachably connected to the side bracket 12 through a connecting angle piece 133. When installing the reel assembly 2, the second crossbeam 132 is first removed to facilitate the installation of the reel assembly 2.

[0045] Lifting ears 121 are arranged above the side brackets 12 , and two lifting ears 121 are arranged on each side bracket 12 , so as to facilitate the overall lifting of the reel assembly 2 .

[0046] Reference Figure 1 , Figure 4The reel assembly 2 is an important component installed on the support frame 1, which includes a main shaft 21, a single reel 22, a shaft seat 23, an end cover 24, a thrust bearing 25 and a nylon spacer 26. The main shaft 21 is mounted above the support frame 1, and the single reel 22 is sleeved on the main shaft 21, and multiple reels are arranged along the length direction of the main shaft 21. The shaft seat 23 is arranged at both ends of the main shaft 21, and is an upper and lower half structure, which is fastened to the support frame 1 by bolts. The end cover 24 is fixed to the side of the shaft seat 23 away from the single reel 22 and is fixed to the shaft seat 23 by screws. The thrust bearing 25 is installed between two adjacent single reels 22 to ensure the smooth rotation of the single reels 22, eliminate the extrusion deformation between the single reels 22, and realize flexible rotation. The nylon spacer 26 is used to adjust the gap between the single reels 22 or between the single reel 22 and the shaft seat 23.

[0047] Reference Figure 5 In order to achieve the adaptability of the single reel 22 to hoses of different diameters, the single reel 22 is specially designed to be an adjustable structure. Specifically, the single reel 22 includes a wheel rim 221, a pressure plate 222, a roller shield 223 and a connecting sleeve hub 224. The roller shield 223 is sleeved on the outside of the connecting sleeve hub 224 and fixedly connected to the wheel rim 221. The lengths of the roller shield 223 and the connecting sleeve hub 224 can be adjusted to adapt to hoses of different diameters. The roller shield 223 is provided with a plane with threaded holes. The pressure plate 222 and the roller shield 223 are fixedly connected by bolts, thereby ensuring that the traction hose is firmly clamped between the pressure plate 222 and the roller shield 223 to prevent the hose from sliding or deflecting during the retraction and release process.

[0048] Reference Figure 1 , Figure 6 The winding auxiliary mechanism 3 is arranged on the supporting frame 1 and is located on one side of the first cross beam 131. It mainly includes a main frame 31, a guide roller 32, a cleaning part 33 and a moving part 34.

[0049] Specifically, the main frame 31 is the basic structure of the winding auxiliary mechanism 3, and the guide roller 32 is arranged on the main frame 31, including a vertical guide roller 321 and a transverse guide roller 322, each of which is provided with two and forms a space for the water belt to pass through, so as to guide the water belt to enter the reel correctly; the cleaning part 33 includes an upper nozzle 331 arranged above the transverse guide roller 322 and a lower nozzle 332 below, which are used to clean the water belt.

[0050] The moving member 34 is arranged between the main frame 31 and the support frame 1. Specifically, the moving member 34 includes a slide rail 341 fixed on the support frame 1, a slider 342 arranged on the main frame 31, and a first driving member 343 arranged on the support frame 1; two slide rails 341 are arranged, two sliders 342 are arranged, and the first driving member 343 drives the main frame 31 to move laterally to adapt to water hoses of different lengths or on-site space layouts. In order to accurately control the moving position of the main frame 31, the first driving member 343 is arranged as a screw 3431 driven by a hydraulic motor, and the hydraulic motor is connected to the screw 3431 through a coupling 3434, and a moving block 3432 rotating with the screw 3431 is arranged on the main frame 31, and an encoder 3433 is configured for position feedback. The upper nozzle 331 and the lower nozzle 332 are connected to a cleaning water pipe, and the cleaning water pipe is arranged in a drag chain. One end of the drag chain is arranged along the length direction of the slide rail 341 and is connected to one of the sliders 342. When the main frame 31 moves, the cleaning water pipe moves.

[0051] Reference Figure 6 The winding auxiliary mechanism 3 also includes a second driving member 35, which is configured as a clamping cylinder (or electric cylinder or air cylinder). The second driving member 35 is arranged on the main frame 31 and is located above the transverse guide roller 322. The output shaft is connected to the upper transverse guide roller 322 and drives it to move up and down, so as to compress the water hose when winding. The compressed water hose is guaranteed to be neat and easy to store.

[0052] The winding auxiliary mechanism 3 can be installed in two or more groups side by side according to the needs, so as to realize the simultaneous winding operation of double-line or more water hoses.

[0053] Reference Figure 1 The laying guide mechanism 4 is arranged above the winding auxiliary mechanism 3. The number of the laying guide mechanism 4 is related to the number of the single reels 22. It includes a bottom guide roller 41 and a side guide roller 42. It is mainly used for laying water hoses to prevent scratches and can realize the simultaneous laying of multiple water hoses.

[0054] Reference Figure 2 The driving device 5 is a key component for driving the single reel 22 to rotate, and it includes a third driving member 51, a first sprocket 52, a second sprocket 53 and a chain 54. The third driving member 51 is arranged on the bottom bracket 11, and its output end is connected to the first sprocket 52; the second sprocket 53 is arranged on one side of the single reel 22 and is fixedly connected to the single reel 22; the chain 54 is connected to the first sprocket 52 and the second sprocket 53, thereby forming a transmission system. When the third driving member 51 is working, it can drive the second sprocket 53 and the single reel 22 to rotate through the chain 54, thereby completing the work of retracting and releasing the water hose. In order to improve the transmission efficiency and stability, the diameter of the second sprocket 53 is designed to be larger than the diameter of the first sprocket 52, so as to achieve higher torque output and natural deceleration effect.

[0055] Reference Figure 3 In order to prevent the reel rim 221 from expanding and deforming and causing wear, a limit bracket 6 corresponding to the single reel 22 is also provided above the bottom bracket 11. The limit bracket 6 is installed on the side of the bottom bracket 11 close to the first sprocket 52, and includes a nylon roller 61, a rotating shaft 62 and a mounting bracket 63, which can effectively avoid the problem of expansion and deformation of the reel rim 221 due to long-term use, thereby extending the service life of the equipment.

[0056] Reference Figure 2 Considering the convenience and safety of the equipment during use, the third driving member 51 is specially designed as a hydraulic motor and is equipped with a control valve 511 and a hydraulic lock 512. The control valve 511 is used to control the oil circuit direction of the hydraulic motor, so that the operator can easily realize the forward and reverse control of the reel; and the hydraulic lock 512 can lock the reel when necessary to avoid safety hazards caused by unexpected situations.

[0057] Reference Figure 3 A roller assembly 7 is also arranged below the support frame 1. Specifically, the roller assembly 7 is arranged directly below the reel and includes a plurality of rollers 71. The axis of the roller 71 is arranged parallel to the axis of the main shaft 21 to prevent the water hose from being worn or piled up and squeezed and to reduce sliding resistance.

[0058] The implementation principle of a hydraulic reel for retracting and releasing a water hose in an embodiment of the present application is as follows: when the water hose is reeled in by the above-mentioned device, a space is formed by the vertical guide roller 321 and the horizontal guide roller 322, and upper and lower nozzles 332 are provided at the same time to clean the water hose. After cleaning, the water hose can be stored cleanly to prevent corrosion and extend its service life. Thereafter, the driving device 5 is used to drive the single reel 22 to rotate to complete the reeling of the water hose. When the water hose is laid, the reeling direction of the water hose is guided to prevent scratches on the water hose. The driving device 5 is used to retract and release the water hose, thereby improving the efficiency and convenience of the retracting and releasing work of the water hose.

[0059] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hydraulic hose reel for retracting and releasing a hose, characterized in that: include: A support frame (1), the support frame (1) comprising a bottom frame (11), side frames (12) located on both sides of the bottom frame (11) and arranged perpendicularly to the bottom frame (11), and a crossbeam (13) arranged between the two side frames (12), the crossbeam (13) comprising a first crossbeam (131) for retracting and releasing a water hose and a second crossbeam (132) arranged opposite to the first crossbeam (131); A reel assembly (2), the reel assembly (2) being mounted on the support frame (1), comprising a main shaft (21) mounted above the support frame (1), a single reel (22) sleeved on the main shaft (21), wherein a plurality of single reels (22) are arranged along the length direction of the main shaft (21), shaft seats (23) arranged at both ends of the main shaft (21), an end cover (24) fixedly arranged on a side of the shaft seat (23) away from the single reel (22), and a thrust bearing (25) arranged between two adjacent single reels (22); A winding auxiliary mechanism (3), the winding auxiliary mechanism (3) is arranged on the support frame (1) at one side of the first crossbeam (131), comprising a main frame (31), the main frame (31) being provided with a guide roller (32) through which the water supply belt passes, and a cleaning component (33), the guide roller (32) comprising a vertical guide roller (321) and a transverse guide roller (322), two of each of the vertical guide roller (321) and the transverse guide roller (322) are provided, and form a space through which the water supply belt passes, the cleaning component (33) comprising an upper nozzle (331) arranged above the transverse guide roller (322) and a lower nozzle (332) arranged below the transverse guide roller (322); A laying guide mechanism (4), the laying guide mechanism (4) being arranged above the winding auxiliary mechanism (3), comprising a bottom guide roller (41) and side guide rollers (42) arranged on both sides above the bottom guide roller (41); A driving device (5), wherein the driving device (5) drives the single reel (22) to rotate, thereby completing the retraction and deployment of the water hose.

2. The hose retracting and releasing hydraulic reel according to claim 1, characterized in that: The second cross beam (132) is detachably connected to the support frame (1), and the second cross beam (132) is detachably connected to the side bracket (12) via a connecting angle piece (133).

3. The hose retracting and releasing hydraulic reel according to claim 1, characterized in that: The single reel (22) comprises two wheel rims (221) arranged opposite to each other, a pressure plate (222), a roller shield (223) arranged between the two wheel rims (221) and a connecting sleeve hub (224); a sliding bearing is installed in the connecting sleeve hub (224) and is rotatably connected to the main shaft (21); the roller shield (223) is sleeved on the outside of the connecting sleeve hub (224) and is fixedly connected to the wheel rim (221); and the lengths of the roller shield (223) and the connecting sleeve hub (224) are adjustable; The roller guard (223) is provided with a plane with a threaded hole, the pressing plate (222) and the roller guard (223) are fixedly connected by bolts, and the traction water hose is provided between the pressing plate (222) and the roller guard (223).

4. The hose retracting and releasing hydraulic reel according to claim 1, characterized in that: The winding auxiliary mechanism (3) also includes a moving member (34), which is arranged between the main frame (31) and the support frame (1), including a slide rail (341) fixed on the support frame (1) and a slider (342) arranged on the main frame (31), and a first driving member (343) arranged on the support frame (1), wherein the first driving member (343) drives the main frame (31) to move laterally.

5. The hose retracting and releasing hydraulic reel according to claim 4 is characterized in that: The first driving member (343) is configured as a screw (3431) driven by a hydraulic motor, a moving block (3432) rotating with the screw (3431) is provided on the main frame (31), and the first driving member (343) is also provided with an encoder (3433).

6. The hose retracting and releasing hydraulic reel according to claim 4, characterized in that: The winding auxiliary mechanism (3) also includes a second driving member (35), which is arranged on the main frame (31) and is located above the transverse guide roller (322). The output shaft of the second driving member (35) is connected to the transverse guide roller (322) above, and drives the transverse guide roller (322) to move up and down.

7. The hose retracting and releasing hydraulic reel according to claim 1, characterized in that: The driving device (5) comprises a third driving member (51), a first sprocket (52), a second sprocket (53) and a chain (54); the third driving member (51) is arranged on the bottom bracket (11), and an output end thereof is connected to the first sprocket (52); the second sprocket (53) is arranged on one side of the single reel (22) and is fixedly connected to the single reel (22); the chain (54) is connected to the first sprocket (52) and the second sprocket (53); and the diameter of the second sprocket (53) is larger than the diameter of the first sprocket (52).

8. The hose retracting and releasing hydraulic reel according to claim 1, characterized in that: A limiting bracket (6) corresponding to the single reel (22) is arranged above the bottom bracket (11); the limiting bracket (6) is installed on the side of the bottom bracket (11) close to the first sprocket (52), and comprises a nylon roller (61), a rotating shaft (62) and a mounting bracket (63), and is used to prevent the reel rim (221) from expanding and deforming to cause wear.

9. The hose retracting and releasing hydraulic reel according to claim 1, characterized in that: A roller assembly (7) is arranged below the support frame (1), and the roller assembly (7) comprises a plurality of rollers (71), wherein the axes of the rollers (71) are arranged parallel to the axis of the main shaft (21).

10. The hose retracting and releasing hydraulic reel according to claim 7, characterized in that: The third driving member (51) is configured as a hydraulic motor and further comprises a control valve (511) and a hydraulic lock (512). The control valve (511) is used to control the oil circuit direction of the hydraulic motor to achieve forward and reverse rotation of the reel, and the hydraulic lock (512) can lock the reel during driving.

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