A portable fire hose storage robot

Abstract

This utility model provides a portable fire hose reeling robot, including a motor side plate, side plates, and a reinforcing connecting shaft. The motor side plate and side plates are fixedly connected to both sides of a support plate. Internal threaded holes are formed in the side walls at both ends of the reinforcing connecting shaft. The drive motor rotates the hose reel to reel in the hose. The wheels automatically move forward using the reverse pulling force during hose reeling, and the omnidirectional wheels automatically turn along the hose's laying path, facilitating automatic hose reeling without human intervention. The hose separation shaft and hose squeezing roller remove residual water and air from the hose, while the hose straightening roller automatically straightens any twisted hose. Finally, the hose width limiter and hose guide shaft press the two layers of hose together, achieving automatic drainage, automatic straightening, tight hose reeling, and neat end faces.

Description

Technical Field

[0001] This utility model relates to the technical field of fire hose storage equipment, and specifically to a portable fire hose storage robot. Background Technology

[0002] During fire rescue operations, fire hoses are used to transport fire extinguishing agents. After each rescue mission is completed, firefighters need to collect the fire hoses. When collecting them, they need to drain the remaining water from the hoses first, then fold the hoses in half and roll them into a coil before placing them inside the fire truck.

[0003] Currently, there are two types of fire hose reels: manual and electric. Manual reels require firefighters to operate them manually, which is less quick and flexible than manually winding the hose. Electric reels, on the other hand, lack the functions of automatically draining water, automatically straightening twisted hoses, and double-winding hoses. Firefighters must first empty any remaining water from the hose before they can properly wind it up. Furthermore, existing electric fire hose reels generally have several drawbacks, including only being able to wind a single hose, not being able to drain residual water while winding, not being able to straighten twisted hoses, and producing loose coils with water residue. Therefore, how to better achieve automatic hose winding, automatic drainage, automatic straightening, and tight winding is a crucial problem that needs to be solved in the design of portable fire hose winding robots. Utility Model Content

[0004] This invention provides a portable fire hose storage robot to solve the problems of fire hoses not being able to drain water while being wound up effectively, not being able to straighten twisted hoses, and not being tight when wound into a coil.

[0005] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0006] This utility model provides a portable fire hose storage robot, including a motor side plate, a side plate and a reinforcing connecting shaft. It also includes that the motor side plate and the side plate are fixedly connected to both sides of a support plate, and that the side walls at both ends of the reinforcing connecting shaft are provided with internal threaded holes. The reinforcing connecting shaft is fixedly connected between the motor side plate and the side plate by countersunk bolts.

[0007] A power drive system assembly, wherein the power drive system assembly is mounted on the motor side plate;

[0008] Driven shaft assembly, the driven shaft assembly being disposed on the motor side plate;

[0009] A hose leveling structure is provided, which is located between the motor side plate and the side plate, and automatically drains and levels the hose.

[0010] Preferably, the power drive system assembly includes a drive motor, a reduction gearbox, a drive sprocket spacer, a drive sprocket, a drive motor mounting base, a flat washer, and a drive sprocket fixing bolt. The reduction gearbox is fixedly connected to the drive motor by bolts, and the reduction gearbox is fixedly connected to the drive motor mounting base by bolts. The drive sprocket spacer is sleeved on the main shaft of the reduction gearbox. The output shaft of the reduction gearbox is configured with a D-shaped structure. The D-shaped hole at the center of the drive sprocket is sleeved on the output shaft of the reduction gearbox. An internal threaded hole is provided on the side wall of the output shaft of the reduction gearbox. The flat washer is placed on the end face of the drive sprocket. The drive sprocket fixing bolt passes through the central circular hole of the flat washer and is threaded into the internal threaded hole of the output shaft of the reduction gearbox. The drive motor mounting base is fixedly connected to the side wall of the motor side plate by bolts.

[0011] In this technical solution, the drive system assembly provides power, the drive motor is powered on and rotates, the drive motor transmits power to the reduction gearbox, the reduction gearbox receives the power from the drive motor, reduces the speed and increases the torque through the reduction gear, and the output shaft of the reduction gearbox transmits the power to the drive sprocket.

[0012] Preferably, the driven shaft assembly includes a driven main shaft, a driven main shaft outer support bearing, a driven main shaft outer support bearing housing, a driven sprocket, a V-groove bearing, a V-groove bearing support plate, a hose reel, and a hose reel slider. The inner ring of the driven main shaft outer support bearing is tightly fitted with the driven main shaft bearing, while the outer ring of the driven main shaft outer support bearing is clearance fitted with the driven main shaft outer support bearing housing. The driven main shaft outer support bearing housing is fixedly connected to the side wall of the motor side plate by bolts. The driven sprocket is fixedly connected to the driven main shaft by bolts. The V-groove bearing is fixedly connected between the driven sprocket and the V-groove bearing support plate by bolts. The "V-groove" on the outer ring of the V-groove bearing cooperates with the "V-shaped guide rail" on the circular hole of the motor side plate. The hose reel is fixedly connected in the two circular holes of the hose reel slider. The hose reel slider is slidably connected in the rectangular groove on the driven main shaft. A transmission chain is sleeved between the driven sprocket and the driving sprocket.

[0013] In this technical solution, the driving sprocket drives the driven sprocket to rotate via the transmission chain. The driven sprocket drives the V-groove bearing support plate to rotate. The V-groove bearing support plate drives the hose reel slider to rotate. The hose reel slider drives the hose reel to rotate and rewind the hose, thus achieving the purpose of automatic hose rewinding.

[0014] Preferably, the driven shaft assembly includes a linear push-pull shaft, a linear push-pull clamp, a linear push-pull clamp assembly fixing seat, a nut, and a transmission chain. One end of the linear push-pull shaft is fixedly connected to a water hose reel slider, and the other end of the linear push-pull shaft is fixedly connected to the linear push-pull clamp by a rivet. The linear push-pull clamp is inserted into an elliptical hole in the linear push-pull clamp assembly fixing seat, and the linear push-pull clamp and the linear push-pull clamp assembly fixing seat are locked together by a nut.

[0015] In this technical solution, the linear push-pull clamp has two movable joints. Pulling the linear push-pull clamp by hand will cause the linear push-pull shaft to move back and forth axially. The linear push-pull shaft will cause the hose reel slider to slide back and forth, increasing or decreasing the stroke of the hose reel within the stroke range of the linear push-pull clamp. Pressing the linear push-pull clamp inward by hand will maximize the stroke of the hose reel, allowing the hose to be quickly threaded onto the hose reel. After the hose is fully wound up, pulling the linear push-pull clamp outward until it reaches its lowest point will cause the hose reel to retract to its minimum stroke, thus achieving the purpose of quickly removing the wound-up coiled hose.

[0016] Preferably, the hose leveling structure includes a hose separation shaft, a hose dewatering and air-discharging roller, a hose straightening roller, a hose width limiter, a hose guide shaft, a first and a second separation shaft and dewatering roller mounting bracket. The first separation shaft and dewatering roller mounting bracket is fixedly connected to the top side wall of the side plate, and the second separation shaft and dewatering roller mounting bracket is fixedly connected to the top side wall of the motor side plate. The hose separation shaft, the hose dewatering and air-discharging roller, the hose straightening roller, and the hose width limiter are all fixedly connected between the first and second separation shaft and dewatering roller mounting brackets by bolts. The hose guide shaft is a quick-plug design, and the hose guide shaft and the hose width limiter are clearance-fitted.

[0017] In this technical solution, the hose guide shaft can quickly adjust its position to accommodate hoses of different specifications. When the hose is being wound up, the hose separation shaft and the hose squeezing roller can lift the hose off the ground to avoid damage caused by hard friction between the hose and the ground. At the same time, it can automatically drain the residual water and air inside the hose. The hose straightening roller can automatically straighten the twisted hose passing through this point. Then, the hose width limiter and the hose guide shaft are used to press the two layers of hose together, achieving the purpose of automatic drainage, automatic straightening, tight hose winding, and neat end face.

[0018] Preferably, the support plate is fixedly connected to the caster wheel by bolts, the motor side plate and the side plate are fixedly connected to the thread on the travel wheel axle by nuts, and travel wheels are fixedly connected to both ends of the travel wheel axle.

[0019] In this technical solution, during the process of winding the water hose, the traveling wheels automatically move forward using the reverse pulling force when winding the water hose, and the omnidirectional wheels can automatically turn along the laying path of the water hose, so as to achieve the purpose of automatically winding the water hose without human intervention.

[0020] Preferably, the side of the motor side plate is fixedly connected to the motor cover by bolts, and the side of the side plate is fixedly connected to the battery cover by bolts.

[0021] In this technical solution, the motor cover and battery cover serve to provide waterproofing, dustproofing, and aesthetic appeal.

[0022] Preferably, a power indicator is installed at the rear of the motor cover, a main power switch and a lithium battery charging port are fixedly connected to the mounting holes of the battery cover, and a motor protection switch is fixedly connected to the battery cover. The motor protection switch is connected to the drive motor through a wire.

[0023] In this technical solution, the power display can show the lithium battery power and voltage information.

[0024] Preferably, the side plate is fixedly connected to a lithium battery, a waterproof lithium battery box, a remote control module, and a branch terminal block by bolts. The lithium battery is located inside the waterproof lithium battery box, and a waterproof connector is fixedly connected to the outlet hole of the waterproof lithium battery box. The lithium battery is connected to the input terminal of the main power switch via a wire. The remote control module is connected to the input terminal of the main power switch via a wire. The output terminal of the remote control module is connected to the input terminal of the branch terminal block via a wire. The output terminal of the branch terminal block is connected to the drive motor via a wire.

[0025] Preferably, a rear decorative panel is fixedly connected to the support plate, and a remote control is placed on the rear decorative panel.

[0026] In this technical solution, the remote controller can remotely control the equipment to rotate forward, reverse, increase speed, and decrease speed, thereby achieving the purpose of remote control with separation of human and machine.

[0027] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0028] The positive and progressive effects of this utility model are as follows:

[0029] 1. The hose reel is driven by a motor to rotate and rewind the hose. During the rewinding process, the wheels move forward automatically using the reverse pull of the hose. The casters turn automatically along the path of the hose, which makes it easier to achieve automatic hose rewinding without human intervention.

[0030] 2. The hose guide shaft allows for quick adjustment of hoses of different specifications as needed. When winding the hose, the hose separation shaft and hose squeezing roller lift the hose off the ground to prevent damage caused by hard friction between the hose and the ground. At the same time, it can automatically remove residual water and air from the hose. The hose straightening roller can automatically straighten the twisted hose passing through this point. Then, the hose width limiter and hose guide shaft are used to press the two layers of hose together, which facilitates automatic drainage, automatic straightening, tight hose winding, and neat end face. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall exploded three-dimensional structure of this utility model.

[0032] Figure 2 This is an exploded three-dimensional structural diagram of the driven shaft assembly of this utility model.

[0033] Figure 3 This is a schematic diagram of the overall rear view structure of this utility model.

[0034] Figure 4 This is a schematic diagram of the overall main structure of this utility model.

[0035] Figure 5 This is a schematic diagram of the overall side view of the present invention.

[0036] Figure 6 This is an exploded three-dimensional structural diagram of the power drive system assembly of this utility model.

[0037] Figure 7 This is a schematic diagram of the main structure of the remote control of this utility model.

[0038] Explanation of reference numerals in the attached figures

[0039] 1. Motor side plate; 2. Side plate; 3. Support plate; 4. Caster wheel; 5. Reinforced connecting shaft; 6. Power drive system assembly; 7. Drive motor; 8. Gearbox; 9. Drive sprocket spacer; 10. Drive sprocket; 11. Drive motor mounting base; 12. Flat washer; 13. Drive sprocket fixing bolt; 14. Driven shaft assembly; 15. Driven spindle; 16. Driven spindle outer support bearing; 17. Driven spindle outer support bearing seat; 18. Driven sprocket; 19. V-groove bearing; 20. V-groove bearing support plate; 21. Water hose reel; 22. Water hose reel slider; 23. Linear push-pull shaft; 24. Linear push-pull clamp; 25. Linear push-pull clamp assembly mounting base; 26. Screw 27. Drive chain; 28. Traveling wheel; 29. ​​Lithium battery; 30. Waterproof lithium battery box; 31. Waterproof connector; 32. Main power switch; 33. Lithium battery charging port; 34. Remote control module; 35. Branch terminal block; 36. Motor protection switch; 37. Motor cover; 38. Battery cover; 39. Power indicator; 40. Hose separator shaft; 41. Hose dewatering and air-discharging roller; 42. Hose straightening roller; 43. Hose width limiter; 44. Hose guide shaft; 45. Separator shaft and dewatering roller mounting bracket one; 46. Traveling wheel axle; 47. Remote control; 48. Rear decorative panel; 49. Separator shaft and dewatering roller mounting bracket two; 50. Hose leveling structure. Detailed Implementation

[0040] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0041] like Figure 1-7 As shown, a portable fire hose storage robot includes a motor side plate 1, a side plate 2, and a reinforcing connecting shaft 5. The motor side plate 1 and the side plate 2 are fixedly connected to both sides of a support plate 3. The side walls at both ends of the reinforcing connecting shaft 5 are provided with internal threaded holes. The reinforcing connecting shaft 5 is fixedly connected between the motor side plate 1 and the side plate 2 by countersunk bolts.

[0042] The power drive system assembly 6 is mounted on the motor side plate 1;

[0043] Driven shaft assembly 14, the driven shaft assembly 14 is disposed on the motor side plate 1;

[0044] A hose leveling structure 50 is provided between the motor side plate 1 and the side plate 2. The hose leveling structure 50 automatically drains and levels the hose.

[0045] The power drive system assembly 6 includes a drive motor 7, a reduction gearbox 8, a drive sprocket spacer 9, a drive sprocket 10, a drive motor mounting base 11, a flat washer 12, and a fixing bolt for the drive sprocket 10. The reduction gearbox 8 is fixedly connected to the drive motor 7 by bolts. The reduction gearbox 8 is also fixedly connected to the drive motor mounting base 11 by bolts. The drive sprocket spacer 9 is sleeved on the main shaft of the reduction gearbox. The output shaft of the reduction gearbox 8 is configured with a D-shaped structure. The D-shaped hole in the center of the drive sprocket 10 is sleeved on the output shaft of the reduction gearbox 8. An internal threaded hole is provided on the side wall of the output shaft of the reduction gearbox 8. The flat washer 12 is placed on the end face of the drive sprocket 10. The fixing bolt for the drive sprocket 10 passes through the central circular hole of the flat washer 12 and is threaded into the internal threaded hole of the output shaft of the reduction gearbox 8. The drive motor mounting base 11 is fixedly connected to the side wall of the motor side plate 1 by bolts.

[0046] The drive system assembly 6 provides power, the drive motor 6 is powered on and rotates, the drive motor 6 transmits power to the reduction gearbox 8, the reduction gearbox 8 receives the power from the drive motor 6 and reduces the speed and increases the torque through the reduction gear, the output shaft of the reduction gearbox 8 transmits the power to the drive sprocket 10.

[0047] The driven shaft assembly 14 includes a driven main shaft 15, a driven main shaft outer support bearing 16, a driven main shaft outer support bearing seat 17, a driven sprocket 18, a V-groove bearing 19, a V-groove bearing support plate 20, a hose reel 21, and a hose reel slider 22. The inner ring of the driven main shaft outer support bearing 16 is tightly fitted with the driven main shaft 15 bearing, while the outer ring of the driven main shaft outer support bearing 16 is clearance fitted with the driven main shaft outer support bearing seat 17. The driven main shaft outer support bearing seat 17 is fixedly connected to the side wall of the motor side plate 1 by bolts. The driven sprocket 18 is fixedly connected to the driven main shaft 15 by bolts. The V-groove bearing 19 is fixedly connected between the driven sprocket 18 and the V-groove bearing support plate 20 by bolts. The "V-groove" on the outer ring of the V-groove bearing 19 cooperates with the "V-shaped guide rail" on the round hole of the motor side plate 1. The hose reel 21 is fixedly connected in the two round holes of the hose reel slider 22. The hose reel slider 22 is slidably connected in the rectangular groove on the driven main shaft 15. A transmission chain 27 is sleeved between the driven sprocket 18 and the driving sprocket 10.

[0048] The drive sprocket 10 drives the driven sprocket 18 to rotate via the transmission chain 27. The driven sprocket 18 drives the V-groove bearing support plate 2 to rotate. The V-groove bearing support plate 2 drives the hose reel slider 22 to rotate. The hose reel slider 22 drives the hose reel 21 to rotate and reel in the hose, thus achieving the purpose of automatic hose reel winding.

[0049] The driven shaft assembly 14 includes a linear push-pull shaft 23, a linear push-pull clamp 24, a linear push-pull clamp assembly fixing seat 25, a nut 26, and a transmission chain 27. One end of the linear push-pull shaft 23 is fixedly connected to the water hose reel slider 22, and the other end of the linear push-pull shaft 23 is fixedly connected to the linear push-pull clamp 24 by a rivet. The linear push-pull clamp 24 is inserted into the elliptical hole of the linear push-pull clamp assembly fixing seat 25, and the linear push-pull clamp 24 and the linear push-pull clamp assembly fixing seat 25 are locked together by the nut 26.

[0050] The linear push-pull clamp 24 has two movable joints. Pulling the linear push-pull clamp 24 by hand will cause the linear push-pull shaft 23 to move back and forth axially. The linear push-pull shaft 23 drives the hose reel slider 22 to slide back and forth, increasing or decreasing the stroke of the hose reel 21 within the stroke range of the linear push-pull clamp 24. Pressing the linear push-pull clamp 24 inward by hand will maximize the stroke of the hose reel 21, allowing the hose to be quickly threaded onto the hose reel 21. After the hose is fully wound up, pulling the linear push-pull clamp 24 outward until it reaches the bottom will cause the hose reel 21 to retract to its minimum stroke, thus achieving the purpose of quickly removing the wound-up coiled hose.

[0051] The hose leveling structure 50 includes a hose separating shaft 40, a hose squeezing and air-discharging roller 41, a hose straightening roller 42, a hose width limiter 43, a hose guide shaft 44, a first separation shaft and squeezing roller mounting bracket 45, and a second separation shaft and squeezing roller mounting bracket 49. The first separation shaft and squeezing roller mounting bracket 45 is fixedly connected to the top side wall of the side plate 2, and the second separation shaft and squeezing roller mounting bracket 49 is fixedly connected to the top side wall of the motor side plate 1. The hose separating shaft 40, the hose squeezing and air-discharging roller 41, the hose straightening roller 42, and the hose width limiter 43 are all fixedly connected between the first separation shaft and squeezing roller mounting bracket 45 and the second separation shaft and squeezing roller mounting bracket 45 by bolts. The hose guide shaft 44 is a quick-plug design, and the hose guide shaft 44 and the hose width limiter 43 are clearance-fitted.

[0052] The hose guide shaft 44 can quickly adjust the position to accommodate hoses of different specifications. When the hose is being wound up, the hose separation shaft 40 and the hose squeezing roller 41 can lift the hose off the ground to avoid damage caused by hard friction between the hose and the ground. At the same time, it can automatically remove residual water and air from the hose. The hose straightening roller 42 can automatically straighten the twisted hose passing through here. Then, the hose width limiter 43 and the hose guide shaft 44 are used to press the two layers of hose together, so as to achieve the purpose of automatic drainage, automatic straightening, tight hose winding, and neat end face.

[0053] The support plate 3 is fixedly connected to the caster wheel 4 by bolts. The motor side plate 1 and the side plate 2 are connected and fixed to the thread on the walking wheel axle 46 by nuts 26. The two ends of the walking wheel axle 46 are fixedly connected to the walking wheels 28.

[0054] During the process of winding the hose, the traveling wheel 28 automatically moves forward using the reverse pulling force when winding the hose, and the omnidirectional wheel 4 can automatically turn along the path of the hose, so as to achieve the purpose of automatically winding the hose without human intervention.

[0055] The side of the motor side plate 1 is fixedly connected to the motor cover 37 by bolts, and the side of the side plate 2 is fixedly connected to the battery cover 38 by bolts.

[0056] The motor cover 37 and battery cover 38 serve to provide waterproofing, dustproofing, and aesthetics.

[0057] A power display 39 is installed at the rear of the motor cover 37. A main power switch 32 and a lithium battery charging port 33 are fixedly connected to the mounting holes of the battery cover 38. A motor protection switch 36 is fixedly connected to the battery cover 38. The motor protection switch 36 is connected to the drive motor 7 through a wire.

[0058] The power display 39 can display lithium battery power and voltage information.

[0059] The side plate 2 is fixedly connected to a lithium battery 29, a waterproof lithium battery box 30, a remote control module 34, and a branch terminal block 35 by bolts. The lithium battery 29 is located inside the waterproof lithium battery box 30. A waterproof connector 31 is fixedly connected to the outlet hole of the waterproof lithium battery box 30. The lithium battery 29 is connected to the input terminal of the main power switch 32 by wires. The remote control module 34 is connected to the input terminal of the main power switch 32 by wires. The output terminal of the remote control module 34 is connected to the input terminal of the branch terminal block 35 by wires. The output terminal of the branch terminal block 35 is connected to the drive motor 7 by wires.

[0060] The rear decorative cover plate 48 is fixedly connected to the support plate 3, and a remote control 47 is placed on the rear decorative cover plate 48.

[0061] Remote controller 47 can remotely control the equipment to rotate forward, reverse, increase speed, and decrease speed, achieving the purpose of remote control without human intervention.

[0062] In use, all electrical components described in this application are externally connected to a power supply and control switch. The remote control 47 controls the drive motor 6 to rotate. The drive motor 6 transmits power to the reduction gearbox 8. After receiving power from the drive motor 6, the reduction gearbox 8 reduces speed and increases torque through reduction gears. The output shaft of the reduction gearbox 8 transmits power to the drive sprocket 10. The drive sprocket 10 drives the driven sprocket 18 to rotate via the transmission chain 27. The driven sprocket 18 drives the V-groove bearing support plate 2 to rotate. The V-groove bearing support plate 2 drives the hose reel slider 22 to rotate. The hose reel slider 22 drives the hose reel 21 to rotate, winding the hose. During the hose winding process, the traveling wheel 28 utilizes the winding mechanism... The reverse pull of the hose automatically propels it forward, and the casters 4 automatically turn along the hose's laying path, achieving automatic hose reeling without human intervention. The hose guide shaft 44 allows for quick adjustment of hoses of different specifications as needed. During hose reeling, the hose separation shaft 40 and hose squeezing roller 41 lift the hose off the ground, preventing damage from hard friction between the hose and the ground. At the same time, they automatically remove residual water and air from the hose. The hose straightening roller 42 automatically straightens any twisted hose passing through. The hose width limiter 43 and hose guide shaft 44 then press the two layers of hose together, achieving automatic drainage, automatic straightening, tight hose reeling, and neat end faces.

[0063] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A portable fire hose storage robot, comprising a motor side plate (1), a side plate (2), and a reinforcing connecting shaft (5), characterized in that, It also includes that the motor side plate (1) and side plate (2) are fixedly connected to both sides of the support plate (3), and the side walls at both ends of the reinforcing connecting shaft (5) are provided with internal thread holes. The reinforcing connecting shaft (5) is fixedly connected between the motor side plate (1) and side plate (2) by countersunk bolts. A power drive system assembly (6) is mounted on the motor side plate (1); Driven shaft assembly (14), the driven shaft assembly (14) is disposed on the motor side plate (1); A hose leveling structure (50) is provided between the motor side plate (1) and the side plate (2). The hose leveling structure (50) automatically drains and levels the hose.

2. The portable fire hose storage robot as described in claim 1, characterized in that: The power drive system assembly (6) includes a drive motor (7), a reduction gearbox (8), a drive sprocket spacer (9), a drive sprocket (10), a drive motor mounting base (11), a flat washer (12), and a drive sprocket (10) fixing bolt. The reduction gearbox (8) is fixedly connected to the drive motor (7) by bolts. The reduction gearbox (8) is also fixedly connected to the drive motor mounting base (11) by bolts. The drive sprocket spacer (9) is sleeved on the main shaft of the reduction gearbox. The output of the reduction gearbox (8) is... The shaft is configured in a D-shape. The D-shaped hole in the center of the drive sprocket (10) is fitted onto the output shaft of the gearbox (8). The side wall of the output shaft of the gearbox (8) is provided with an internal thread hole. The flat washer (12) is placed on the end face of the drive sprocket (10). The fixing bolt of the drive sprocket (10) passes through the central round hole of the flat washer (12) and is threaded into the internal thread hole of the output shaft of the gearbox (8). The drive motor mounting base (11) is fixedly connected to the side wall of the motor side plate (1) by bolts.

3. The portable fire hose storage robot as described in claim 1, characterized in that: The driven shaft assembly (14) includes a driven main shaft (15), a driven main shaft outer support bearing (16), a driven main shaft outer support bearing seat (17), a driven sprocket (18), a V-groove bearing (19), a V-groove bearing support plate (20), a hose reel (21), and a hose reel slider (22). The inner ring of the driven main shaft outer support bearing (16) is tightly fitted with the bearing position of the driven main shaft (15), and the outer ring of the driven main shaft outer support bearing (16) is clearance fitted with the driven main shaft outer support bearing seat (17). The driven main shaft outer support bearing seat (17) is fixedly connected to the side wall of the motor side plate (1) by bolts. The driven sprocket (18) is fixedly connected to the driven spindle (15) by bolts. The V-groove bearing (19) is fixedly connected between the driven sprocket (18) and the V-groove bearing support plate (20) by bolts. The "V-groove" on the outer ring of the V-groove bearing (19) cooperates with the "V-shaped guide rail" on the round hole of the motor side plate (1). The water hose reel (21) is fixedly connected in the two round holes of the water hose reel slider (22). The water hose reel slider (22) is slidably connected in the rectangular groove on the driven spindle (15). A transmission chain (27) is sleeved between the driven sprocket (18) and the driving sprocket (10).

4. The portable fire hose storage robot as described in claim 3, characterized in that: The driven shaft assembly (14) includes a linear push-pull shaft (23), a linear push-pull clamp (24), a linear push-pull clamp assembly fixing seat (25), a nut (26), and a transmission chain (27). One end of the linear push-pull shaft (23) is fixedly connected to the water hose reel slider (22), and the other end of the linear push-pull shaft (23) is fixedly connected to the linear push-pull clamp (24) by a rivet. The linear push-pull clamp (24) is inserted into the elliptical hole of the linear push-pull clamp assembly fixing seat (25), and the linear push-pull clamp (24) and the linear push-pull clamp assembly fixing seat (25) are locked together by the nut (26).

5. The portable fire hose storage robot as described in claim 1, characterized in that: The hose leveling structure (50) includes a hose separating shaft (40), a hose dewatering and air-discharging roller (41), a hose straightening roller (42), a hose width limiter (43), a hose guide shaft (44), a first mounting bracket (45) for the separating shaft and the dewatering roller, and a second mounting bracket (49) for the separating shaft and the dewatering roller. The first mounting bracket (45) for the separating shaft and the dewatering roller is fixedly connected to the top side wall of the side plate (2), and the second mounting bracket (49) for the separating shaft and the dewatering roller is fixedly connected to the top side wall of the side plate (2). The hose separation shaft (40), hose squeezing and air-discharging roller (41), hose straightening roller (42), and hose width limiter (43) are all fixedly connected to the top side wall of the motor side plate (1) by bolts between the separation shaft and the squeezing roller mounting bracket (45) and the separation shaft and the squeezing roller mounting bracket (45). The hose guide shaft (44) is a quick-plug design, and the hose guide shaft (44) and the hose width limiter (43) are clearance-fitted.

6. The portable fire hose storage robot as described in claim 1, characterized in that: The support plate (3) is fixedly connected to the caster wheel (4) by bolts. The motor side plate (1) and the side plate (2) are fixedly connected to the thread on the walking wheel axle (46) by nuts (26). The two ends of the walking wheel axle (46) are fixedly connected to the walking wheels (28).

7. The portable fire hose storage robot as described in claim 1, characterized in that: The side of the motor side plate (1) is fixedly connected to the motor cover (37) by bolts, and the side of the side plate (2) is fixedly connected to the battery cover (38) by bolts.

8. The portable fire hose storage robot as described in claim 7, characterized in that: A power display (39) is installed at the rear of the motor cover (37). A main power switch (32) and a lithium battery charging port (33) are fixedly connected to the mounting holes of the battery cover (38). A motor protection switch (36) is fixedly connected to the battery cover (38). The motor protection switch (36) is connected to the drive motor (7) through a wire.

9. The portable fire hose storage robot as described in claim 1, characterized in that: The side plate (2) is fixedly connected to a lithium battery (29), a lithium battery waterproof box (30), a remote control module (34), and a branch terminal block (35) by bolts. The lithium battery (29) is located inside the lithium battery waterproof box (30). A waterproof connector (31) is fixedly connected to the outlet hole of the lithium battery waterproof box (30). The lithium battery (29) is connected to the input terminal of the main power switch (32) by wires. The remote control module (34) is connected to the input terminal of the main power switch (32) by wires. The output terminal of the remote control module (34) is connected to the input terminal of the branch terminal block (35) by wires. The output terminal of the branch terminal block (35) is connected to the drive motor (7) by wires.

10. The portable fire hose storage robot as described in claim 1, characterized in that: The rear decorative cover plate (48) is fixedly connected to the support plate (3), and a remote control (47) is placed on the rear decorative cover plate (48).

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