Automatic reeling device for fire hose

Abstract

The application discloses an automatic winding and unwinding device for a fire hose, and belongs to the technical field of pipe winding and unwinding.The device comprises a supporting frame, a winding device, a driving device, a reciprocating device and a guiding device.The winding device is connected with the supporting frame, the driving device is connected with the supporting frame and located at one side of the winding device, and the driving device drives the winding device to rotate.The reciprocating screw rod and the guiding rod of the reciprocating device are arranged in parallel and connected with the supporting frame, and the moving frame is sleeved on the two rods.The reciprocating screw rod is connected with the driving device to make the reciprocating screw rod and the winding device move synchronously.The floating rod of the guiding device is slidably connected with the moving frame, and the floating rod is provided with a through hole for the water hose to pass through and four mounting grooves which are uniformly distributed in the circumferential direction of the through hole.Four wheels are arranged in the mounting grooves, and at least one of the wheels is in abutment with the water hose.A connecting plate is connected with the moving frame, and springs are connected with the connecting plate and the floating rod.The application has the technical effects of automatically winding and unwinding the fire hose, neatly winding the water hose on the winding device, and effectively improving the winding and unwinding efficiency and quality.

Description

Technical Field

[0001] This application relates to the field of pipeline retraction and deployment technology, and in particular to an automatic retraction and deployment device for fire water pipes. Background Technology

[0002] Fire hoses are crucial in firefighting operations and routine maintenance, serving as key tools for fire suppression and rescue efforts. With accelerating urbanization and the increasing number of buildings, fire safety is receiving greater attention, placing higher demands on the efficient management and use of fire hoses. The deployment and retraction of fire hoses not only affects the timeliness of rescue operations but also relates to the lifespan of the equipment and the effective utilization of storage space. Good fire hose deployment and retraction management ensures rapid deployment of hoses in emergencies, improving firefighting efficiency and reducing fire losses. Furthermore, proper deployment and retraction methods can prevent hose damage and tangling, extending their lifespan and reducing maintenance costs for firefighting equipment. Therefore, developing efficient fire hose deployment and retraction devices has significant practical implications.

[0003] In traditional firefighting operations, several methods are typically used to address the issue of maneuvering fire hoses. One method is purely manual maneuvering, where operators wind the hose into sections and unwind it manually when needed. While simple and direct, this method is extremely labor-intensive and time-consuming, resulting in very low efficiency. Furthermore, for longer hoses, manual maneuvering is difficult and prone to tangling. Another common method involves using simple mechanical aids, such as brackets with simple rotating shafts. The hose is wound and unwound manually by driving the shaft. This is an improvement over manual methods, but it still requires continuous manual power, making operation less convenient, and ensuring even winding is difficult. Additionally, some areas use electric rotating devices, but these devices are often single-function and lack effective control and guidance during the winding process, easily leading to problems like hose stacking and knotting.

[0004] However, traditional methods of fire hose retraction and deployment have significant drawbacks. Manual methods are not only inefficient but also prone to operator fatigue and injury, and cannot meet the demands of rapid deployment in emergency situations. Existing simple mechanical auxiliary equipment and electric rotating devices lack effective winding control and guidance mechanisms, leading to uneven winding, stacking, and knotting of hoses during the process. This not only affects the normal use of the hoses but can also cause damage, increasing maintenance costs for fire equipment. Furthermore, these traditional methods struggle to achieve automated and efficient hose retraction and deployment, failing to meet the rapid response and high-efficiency requirements of modern firefighting operations. Utility Model Content

[0005] In order to automatically retract and extend fire hoses, so that the hoses are neatly wound on the winding device, and effectively improve the efficiency and quality of retracting and extending, this utility model provides an automatic retracting and extending device for fire hoses.

[0006] The present invention provides an automatic retraction and extension device for fire-fighting water pipes, which adopts the following technical solution: An automatic winding and unwinding device for fire hoses includes a support frame, a winding device, a drive device, a reciprocating device, and a guide device. The winding device is connected to the support frame and is used for winding the water supply pipe. The drive device is connected to the support frame and the winding device is connected to the drive device to drive the winding device to rotate. The reciprocating device includes a reciprocating screw, a guide rod, and a movable frame. The reciprocating screw and the guide rod are arranged in parallel and are both connected to the support frame. The movable frame is sleeved on the reciprocating screw and the guide rod, and is threadedly connected to the reciprocating screw and slidably connected to the guide rod. The reciprocating screw is connected to the drive device to enable synchronous movement of the reciprocating screw and the winding device. The guide device includes a floating rod, a first wheel, a second wheel, a third wheel, and a... The system includes a fourth wheel, a connecting plate, and a spring. The floating rod is slidably connected to the movable frame. The floating rod has a through hole through which a water supply pipe passes. The floating rod has a first mounting groove, a second mounting groove, a third mounting groove, and a fourth mounting groove, which are evenly distributed around the through hole. The first wheel is located in the first mounting groove, the second wheel in the second mounting groove, the third wheel in the third mounting groove, and the fourth wheel in the fourth mounting groove. The first, second, third, and fourth wheels are all rotatably connected to the floating rod. At least one of the first, second, third, and fourth wheels abuts against the water pipe to guide it. The connecting plate is connected to the movable frame. One end of the spring is connected to the connecting plate, and the other end is connected to the floating rod.

[0007] By adopting the above technical solution, when using the automatic winding and unwinding device, the drive device drives the winding device to rotate to wind and unwind the water pipe. Simultaneously, it drives the reciprocating screw to move synchronously with the winding device, causing the moving frame, which is sleeved on the reciprocating screw and guide rod, to move. The water pipe passes through the through hole of the floating rod, and at least one of the first, second, third, and fourth wheels abuts against the water pipe. Under the action of the spring, the floating rod can slide relative to the moving frame, flexibly guiding the water pipe and ensuring that the water pipe is wound orderly and smoothly wound and unwound on the winding device. This improves the efficiency and quality of winding and unwinding, and solves technical problems such as uneven winding and jamming that may occur during the water pipe winding and unwinding process.

[0008] Preferably, the top of the floating rod is provided with a fixed part and a rotating part. The first end of the rotating part is rotatably connected to the fixed part, and the second end of the rotating part is provided with a slot. The fourth wheel is connected to the rotating part. When the rotating part is in the closed state, the first wheel, the second wheel, the third wheel, and the fourth wheel form a fully enclosed space for the water guide pipe, and the shaft of the first wheel passes through the slot. When the rotating part is in the open state, the first wheel, the second wheel, and the third wheel form a semi-enclosed space. The guiding device includes a connecting block and a fixing bolt. The connecting block is connected to the shaft of the first wheel, and the fixing bolt is threadedly connected to the connecting block. When the rotating part is in the closed state, the fixing bolt passes through the connecting block and abuts against the rotating part to fix the rotating part.

[0009] By adopting the above technical solution, the rotating part can switch between a closed state and an open state. In the closed state, it can form a fully enclosed space to stably guide the water pipe, and the rotating part can be fixed by fixing bolts. In the open state, it forms a semi-enclosed space, which facilitates the installation and disassembly of the water pipe.

[0010] Preferably, the driving device includes a motor and a first synchronization component. The motor is connected to the support frame. The first synchronization component includes a driving sprocket, a driven sprocket, and a first chain. The driving sprocket is connected to the motor, and the driven sprocket is connected to the winding device. The diameter of the driven sprocket is larger than the diameter of the driving sprocket. The first chain is sleeved on the driving sprocket and the driven sprocket and meshes with both the driving sprocket and the driven sprocket.

[0011] By adopting the above technical solution, during use, the motor drives the active sprocket to rotate, and the active sprocket drives the passive sprocket to rotate through the first chain. Since the diameter of the passive sprocket is larger than that of the active sprocket, speed reduction and torque increase can be achieved, thereby providing a stable and powerful driving force for the winding device, enabling the winding device to rotate smoothly for the operation of winding and unwinding fire water pipes.

[0012] Preferably, the drive device further includes a second synchronization component, which includes a synchronization sprocket, a drive sprocket, and a second chain. The synchronization sprocket is connected to the winding device, and the drive sprocket is connected to the reciprocating screw. The diameter of the synchronization sprocket is smaller than the diameter of the driven sprocket. The second chain is sleeved on the synchronization sprocket and the drive sprocket and meshes with both the synchronization sprocket and the drive sprocket.

[0013] By adopting the above technical solution, the second synchronization component of the drive device plays a role in the automatic retraction and extension of fire hoses. The synchronization sprocket is connected to the winding device, the drive sprocket is connected to the reciprocating screw, and the second chain is sleeved on the synchronization sprocket and the drive sprocket and meshes with them. The diameter of the synchronization sprocket is smaller than the diameter of the passive sprocket, which can realize the synchronous movement of the winding device and the reciprocating screw, so that the water hose is evenly wound on the winding device, improving the efficiency and effect of retraction and extension of the water hose.

[0014] Preferably, both the first chain and the second chain are connected to a tensioning device. The tensioning device includes a first mounting plate, an adjusting screw, a tensioning sprocket, and an adjusting nut. The support frame has an adjusting hole. The adjusting screw passes through the adjusting hole. The first end of the adjusting screw passes through the first mounting plate and is threadedly connected to the adjusting nut. The first mounting plate abuts against the support frame. The adjusting nut abuts against the first mounting plate. The second end of the adjusting nut is connected to the tensioning sprocket. The tensioning sprocket meshes with the adjacent first chain or second chain. The tensioning sprocket is located on the outside of the chain.

[0015] By adopting the above technical solution, when the first and second chains become slack during the use of the automatic take-up and release device, the adjusting nut of the tensioning device can be adjusted to move the adjusting screw in the adjusting hole, thereby driving the tensioning sprocket to move. The tensioning sprocket is located outside the chain and meshes with the chain, thus tensioning the first and second chains, ensuring normal chain transmission, and improving the stability and reliability of the automatic take-up and release device.

[0016] Preferably, the tensioning device further includes a second mounting plate, a reinforcing screw, and a reinforcing nut. The second mounting plate is fixedly connected to the support frame. The reinforcing screw passes through the second mounting plate and the first mounting plate. The reinforcing nut is threadedly connected to the reinforcing screw and abuts against the first mounting plate.

[0017] By adopting the above technical solution, the tensioning device is equipped with a second mounting plate, a reinforcing screw, and a reinforcing nut. The reinforcing screw passes through the second mounting plate and the first mounting plate, and the reinforcing nut is threadedly connected to the reinforcing screw and abuts against the first mounting plate, which can further fix the first mounting plate, enhance the stability of the tensioning device, make the chain tensioning effect more reliable, and ensure the synchronous movement of the drive device and the reciprocating device.

[0018] Preferably, the floating rod is connected to a wiping device, which includes a fixing frame, a cleaning plate, a cleaning sponge, and Velcro. The fixing frame is connected to the floating rod, the cleaning plate is connected to the fixing frame, and the cleaning sponge is connected to the cleaning plate via the Velcro. The cleaning sponge is spirally wound around the water pipe.

[0019] By adopting the above technical solution, the floating rod of the automatic retraction device is connected to the wiping device, and the cleaning sponge is connected to the cleaning plate by Velcro and spirally wound on the water pipe, which facilitates the replacement of the cleaning sponge and can clean the water pipe during the retraction and extension process.

[0020] Preferably, the device further includes a clamping device comprising a rotating shaft, a protrusion, a first pressure rod, a second pressure rod, a clamping rod, a clamping roller, a connecting rod, and a torsion spring. Both ends of the rotating shaft are connected to the protrusion, which is connected to the support frame. The first and second pressure rods correspond to and are connected to both ends of the rotating shaft. One end of the clamping rod is connected to the first pressure rod, and the other end is connected to the second pressure rod. The clamping roller is sleeved on the clamping rod and rotatably connected to it for contact with the water pipe. One end of the connecting rod is connected to the first pressure rod, and the other end is connected to the second pressure rod. The torsion spring is sleeved on the rotating shaft, with one end connected to the support frame and the other end connected to the connecting rod.

[0021] By adopting the above technical solution, during the automatic winding and unwinding of fire hoses, one end of the torsion spring of the clamping device is connected to the support frame, and the other end is connected to the connecting rod. The generated torque causes the clamping roller, which is sleeved on the clamping rod and rotatably connected to the clamping rod, to abut against the water pipe, ensuring that the water pipe is always in a clamped state during the winding process, preventing the water pipe from loosening, and improving the neatness and stability of the winding and unwinding of the water pipe.

[0022] In summary, this utility model has the following beneficial effects: 1. When using this automatic winding and unwinding device, the drive unit rotates the winding device to wind and unwind the water pipe, while simultaneously driving the reciprocating screw to move synchronously with the winding device, causing the moving frame sleeved on the reciprocating screw and guide rod to move. The water pipe passes through the through hole of the floating rod, and at least one of the first, second, third, and fourth wheels abuts against the water pipe. Under the action of the spring, the floating rod can slide relative to the moving frame, flexibly guiding the water pipe and ensuring that the water pipe is wound and unwinded smoothly on the winding device, improving the efficiency and quality of winding and unwinding, and solving technical problems such as uneven winding and jamming that may occur during the water pipe winding and unwinding process; 2. The clamping roller of the clamping device abuts against the water pipe, which makes the water pipe tighter during the winding process, and facilitates storage and management. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an automatic retraction and extension device for fire-fighting water pipes.

[0024] Figure 2 This is a schematic diagram of the drive device.

[0025] Figure 3This is a top view of an automatic retraction device for fire hoses.

[0026] Figure 4 This is a schematic diagram of the tensioning device.

[0027] Figure 5 This is a schematic diagram of the guiding device.

[0028] Figure 6 This is a schematic diagram of the rotating part in the open state.

[0029] Figure 7 This is a schematic diagram of the wiping device.

[0030] Figure 8 This is a schematic diagram of the clamping device.

[0031] Explanation of reference numerals in the attached figures: 1. Support frame; 11. First support plate; 12. Second support plate; 13. First connecting beam; 14. Second connecting beam; 2. Winding device; 21. Rotary drum; 211. Main shaft; 22. First baffle; 23. Second baffle; 3. Drive device; 31. Motor; 32. First synchronization assembly; 321. Drive sprocket; 322. Driven sprocket; 323. First chain; 33. Second synchronization assembly; 331. Synchronization sprocket; 332. Drive sprocket; 333. Second chain; 4. Tensioning device; 41. First mounting plate; 42. Adjusting screw; 43. Tensioning sprocket; 44. Adjusting nut; 45. Second mounting plate; 46. Reinforcing screw; 47. Reinforcing nut; 5. Reciprocating device; 51. Reciprocating screw; 52. Guide rod; 53. Moving frame; 531. Slide groove; 6. Guide device; 61. Floating rod; 611. Fixing part; 612. Rotating part; 6121. Slot; 6010. Through hole; 6011. First mounting slot; 6012. Second mounting slot; 6013. Third mounting slot; 6014. Fourth mounting slot; 62. First wheel; 63. Second wheel; 64. Third wheel; 65. Fourth wheel; 66. Connecting plate; 67. Spring; 68. Connecting block; 69. Fixing bolt; 7. Wiping device; 71. Fixing frame; 72. Cleaning plate; 73. Cleaning sponge; 74. Velcro; 8. Pressing device; 81. Rotating shaft; 82. Protrusion; 83. First pressure rod; 84. Second pressure rod; 85. Pressing rod; 86. Pressing roller; 861. Relief groove; 87. Connecting rod; 88. Torsion spring. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0033] In the description of the embodiments of this application, the words "for example" or "for instance" are used to indicate examples, illustrations, or explanations. Any embodiment or design that is described as "for example" or "for instance" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design options. Rather, the use of the words "for example" or "for instance" is intended to present the relevant concepts in a specific manner.

[0034] In the description of the embodiments of this application, the term "multiple" means two or more. For example, multiple systems means two or more systems, and multiple screen terminals means two or more screen terminals. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. The terms "comprising," "including," "having," and variations thereof all mean "including but not limited to," unless otherwise specifically emphasized.

[0035] An automatic retraction device for fire hoses, as described in the following description. Figure 1 and Figure 2 The system includes a support frame 1, a winding device 2, a drive device 3, a reciprocating device 5, and a guide device 6. Both the winding device 2 and the drive device 3 are connected to the support frame 1. The drive device 3 is located on one side of the winding device 2 and connected to it, enabling the winding device 2 to rotate. The reciprocating device 5 includes a reciprocating screw 51, a guide rod 52, and a movable frame 53. The reciprocating screw 51 and the guide rod 52 are arranged in parallel and both are connected to the support frame 1. The movable frame 53 is sleeved on the reciprocating screw 51 and the guide rod 52, threadedly connected to the reciprocating screw 51 and slidably connected to the guide rod 52. The reciprocating screw 51 is connected to the drive device 3, enabling synchronous movement with the winding device 2. The guide device 6 is connected to the movable frame 53 and is used to guide the water pipe, achieving automatic winding and even coiling of the fire hose, avoiding problems such as tangling and knotting. This is because the drive device 3 drives the winding device 2 to rotate to achieve the winding and release of the water pipe, while driving the reciprocating device 5 to move synchronously, so that the water pipe can be evenly distributed during winding. The guide device 6 further ensures that the water pipe can pass smoothly and maintain a good winding state during the winding and releasing process.

[0036] Reference Figure 1 and Figure 2The support frame 1 includes a first support plate 11, a second support plate 12, a first connecting beam 13, and a second connecting beam 14. The first support plate 11 and the second support plate 12 are vertically arranged and parallel to each other. The first connecting beam 13 and the second connecting beam 14 are both located between the first support plate 11 and the second support plate 12. The two ends of the first connecting beam 13 are fixedly connected to the top of the first support plate 11 and the top of the second support plate 12, respectively. The two ends of the second connecting beam 14 are fixedly connected to the bottom of the first support plate 11 and the bottom of the second support plate 12, respectively.

[0037] Reference Figure 1 and Figure 2 The winding device 2 is located between the first support plate 11 and the second support plate 12. The winding device 2 includes a rotating drum 21, a first baffle 22, and a second baffle 23. A coaxial main shaft 211 is installed inside the rotating drum 21. The main shaft 211 is horizontally positioned, and its two ends are fixedly connected to the first support plate 11 and the second support plate 12, respectively. The rotating drum 21 is fixedly connected to the main shaft 211 to achieve its fixation. The first baffle 22 and the second baffle 23 are respectively located on both sides of the rotating drum 21 and are both fixedly connected to the rotating drum 21. The space between the first baffle 22 and the second baffle 23 forms the winding space for the water supply pipe.

[0038] Reference Figure 2 and Figure 3 The drive unit 3 is located on one side of the winding device 2. The drive unit 3 includes a motor 31, a first synchronization component 32, and a second synchronization component 33. The motor 31 is fixedly connected to the second connecting beam 14. The first synchronization component 32 includes a driving sprocket 321, a driven sprocket 322, and a first chain 323. The driving sprocket 321 is connected to the output shaft of the motor 31 via a key and can rotate synchronously with the motor 31. The driven sprocket 322 is connected to the main shaft 211 via a key. The first chain 323 is sleeved on the driving sprocket 321 and the driven sprocket 322 and meshes with them to realize the transmission of power. The diameter of the driven sprocket 322 is larger than the diameter of the driving sprocket 321, which can reduce speed and increase torque, making the rotation of the winding device 2 more stable.

[0039] Reference Figure 2 The second synchronization component 33 includes a synchronization sprocket 331, a drive sprocket 332, and a second chain 333. The synchronization sprocket 331 is connected to the main shaft 211 via a key, and the drive sprocket 332 is connected to the reciprocating lead screw 51 via a key. The second chain 333 is sleeved on the synchronization sprocket 331 and the drive sprocket 332, and meshes with both. The diameter of the synchronization sprocket 331 is smaller than the diameter of the driven sprocket 322.

[0040] The second synchronization component 33 enables the winding device 2 and the reciprocating device 5 to move synchronously and precisely, ensuring that the water pipe can be wound evenly during the winding and unwinding process.

[0041] Reference Figure 1 and Figure 4 Both the first chain 323 and the second chain 333 are connected to a tensioning device 4. The tensioning device 4 includes a first mounting plate 41, an adjusting screw, a tensioning sprocket 43, an adjusting nut 44, a second mounting plate 45, a reinforcing screw 46, and a reinforcing nut 47. The first end of the adjusting nut 44 is connected to the tensioning sprocket 43, which meshes with the adjacent first chain 323 or second chain 333. The tensioning sprocket 43 is located on the outside of the chain. An adjusting hole is provided on the first support plate 11. The second end of the adjusting screw passes through the adjusting hole and the first mounting plate 41 and is threadedly connected to the adjusting nut 44. The first mounting plate 41 abuts against the support frame 1, and the adjusting nut 44 abuts against the first mounting plate 41.

[0042] Reference Figure 4 The first mounting plate 41 and the second mounting plate 45 are both L-shaped. The vertical section of the first mounting plate 41 abuts against the first support plate 11. The second mounting plate 45 is fixedly connected to the first support plate 11. The reinforcing screw 46 passes through the horizontal section of the first mounting plate 41 and the horizontal section of the second mounting plate 45. The reinforcing nut 47 is threadedly connected to the reinforcing screw 46 and abuts against the second mounting plate 45.

[0043] Tensioning device 4 tensions the chain to prevent it from slackening during operation and affecting transmission performance. Reinforcing screw 46 and reinforcing nut 47 further enhance the stability of tensioning device 4, ensuring reliable operation.

[0044] Reference Figure 2 The reciprocating screw 51 is connected to the support frame 1 via bearings, ensuring its free rotation. The guide rod 52 is generally a smooth rod, which can be made of stainless steel and has a smooth surface to reduce friction with the moving frame 53. The moving frame 53 is sleeved on the reciprocating screw 51 and the guide rod 52, and is threadedly connected to the reciprocating screw 51 and slidably connected to the guide rod 52. When the reciprocating screw 51 rotates, the moving frame 53 will make linear reciprocating motion along the guide rod 52.

[0045] Reference Figure 5 The guide device 6 includes a floating rod 61, a first wheel 62, a second wheel 63, a third wheel 64, a fourth wheel 65, a connecting plate 66, a spring 67, a connecting block 68, and a fixing bolt 69. Slider blocks are rotatably connected to both sides of the floating rod 61. A groove 531, parallel to the vertical direction in length, is provided on the moving frame 53. One end of the slider extends into the groove 531 and is slidably connected to the moving frame 53. This ensures that the floating rod 61 slides smoothly on the moving frame 53.

[0046] Reference Figure 5 and Figure 6The top of the floating rod 61 has a through hole 6010 through which a water supply pipe can pass smoothly. The floating rod 61 has a first mounting groove 6011, a second mounting groove 6012, a third mounting groove 6013, and a fourth mounting groove 6014, which are evenly distributed around the through hole 6010. A first wheel 62 is located in the first mounting groove 6011, a second wheel 63 in the second mounting groove 6012, a third wheel 64 in the third mounting groove 6013, and a fourth wheel 65 in the fourth mounting groove 6014, all of which are rotatably connected to the floating rod 61. At least one of the first wheel 62, second wheel 63, third wheel 64, and fourth wheel 65 abuts against the water pipe to guide it.

[0047] The wheels here can be made of rubber, which has good friction and cushioning properties. Alternatively, polyurethane wheels can be used, which have better wear resistance.

[0048] Reference Figure 6 The top of the floating rod 61 is provided with a fixed part 611 and a rotating part 612. The first end of the rotating part 612 is rotatably connected to the fixed part 611 by a pin. The second end of the rotating part 612 is provided with a slot 6121. The fourth wheel 65 is rotatably connected to the rotating part 612.

[0049] Reference Figure 5 and Figure 6 When the rotating part 612 is in the closed state, the first wheel 62, the second wheel 63, the third wheel 64 and the fourth wheel 65 form a fully enclosed space for the guide water pipe, and the shaft of the first wheel 62 passes through the slot 6121; when the rotating part 612 is in the open state, the first wheel 62, the second wheel 63 and the third wheel 64 form a semi-enclosed space.

[0050] When the rotating part 612 is closed, the fully enclosed space can better constrain the water pipe and ensure its stable passage; when the rotating part 612 is open, the semi-enclosed space facilitates the installation and removal of the water pipe.

[0051] Reference Figure 5 and Figure 6 The connecting block 68 is welded to the shaft of the first wheel 62, and the fixing bolt 69 is threaded to the connecting block 68. When the rotating part 612 is in the closed state, the fixing bolt 69 passes through the connecting block 68 and abuts against the rotating part 612 to fix the rotating part 612. The fixing bolt 69 can fix the rotating part 612 in the required position to ensure the stability of the guide device 6.

[0052] Reference Figure 5 and Figure 6The connecting plate 66 is fixedly connected to the movable frame 53. One end of the spring 67 is fixedly connected to the connecting plate 66, and the other end is fixedly connected to the bottom of the floating rod 61. The spring 67 can be a compression spring, which can provide a certain elastic force, allowing the floating rod 61 to float within a certain range, better adapting to changes in the position of the water pipe.

[0053] Reference Figure 5 and Figure 7 A wiping device 7 is connected to a floating rod 61. The wiping device 7 includes a fixing frame 71, a cleaning plate 72, a cleaning sponge 73, and Velcro 74. The fixing frame 71 is fixedly connected to the floating rod 61. The cleaning plate 72 is spiral-shaped and fixedly connected to the fixing frame 71. The cleaning sponge 73 is detachably connected to the cleaning plate 72 via Velcro 74. The cleaning sponge 73 is spirally wound around the water pipe.

[0054] During the water pipe's operation, the wiping device 7 cleans the pipe. The cleaning sponge 73 is spirally wound around the pipe, increasing the contact area and more effectively removing dust and impurities from its surface. The Velcro closure 74 facilitates the replacement of the cleaning sponge 73, ensuring effective cleaning. This helps extend the pipe's lifespan and reduces damage caused by accumulated impurities.

[0055] Reference Figure 1 and Figure 8 It also includes a clamping device 8, which comprises a rotating shaft 81, protrusions 82, a first pressure rod 83, a second pressure rod 84, a clamping rod 85, a clamping roller 86, a connecting rod 87, and a torsion spring 88. Both ends of the rotating shaft 81 are fixedly connected to protrusions 82, which are connected to the support frame 1 by bolts. Both the first pressure rod 83 and the second pressure rod 84 are arc-shaped, with their centers located near the winding device 2. The first pressure rod 83 and the second pressure rod 84 are respectively located at both ends of the rotating shaft 81 and are rotatably connected to it.

[0056] Reference Figure 8 One end of the clamping rod 85 is fixedly connected to the first clamping rod 83, and the other end is fixedly connected to the second clamping rod 84. The clamping roller 86 is sleeved on the clamping rod 85 and rotatably connected to the clamping rod 85 for contacting the water pipe. The clamping roller 86 has a relief groove 861 for the first clamping rod 83 and the second clamping rod 84 to move, reducing the possibility of the first clamping rod 83 and the second clamping rod 84 contacting the water pipe, thereby protecting the water pipe.

[0057] Reference Figure 1 and Figure 8 One end of the connecting rod 87 is welded to the first pressure rod 83, and the other end is welded to the second pressure rod 84. The torsion spring 88 is sleeved on the rotating shaft 81. One end of the torsion spring 88 is fixedly connected to the first connecting beam 13 of the support frame 1, and the other end is fixedly connected to the connecting rod 87.

[0058] The clamping device 8 uses the elastic force of the torsion spring 88 to bring the clamping roller 86 into contact with the water pipe, thus clamping it during the winding and unwinding process and reducing the possibility of the water pipe loosening or stacking. The clamping roller 86 can rotate with the movement of the water pipe, reducing the friction between it and the water pipe. This further improves the tightness and uniformity of the water pipe winding, ensuring the good operation of the automatic winding and unwinding device.

[0059] The implementation principle of this embodiment is as follows: The automatic retraction and deployment device is powered by the drive device 3, which drives the winding device 2 to rotate, thereby retracting and deploying the water pipe. Simultaneously, the drive device 3 drives the reciprocating device 5 to move synchronously, ensuring that the water pipe is evenly distributed on the winding device 2 during winding. The guide device 6 further guides the water pipe, ensuring its smooth passage and maintaining a good winding state during the retraction and deployment process. Compared with traditional fire hose retraction and deployment methods, this device achieves automatic retraction and deployment, improves efficiency, avoids problems such as pipe tangling and knotting, reduces the maintenance cost of fire-fighting equipment, and meets the rapid response and high-efficiency requirements of modern fire-fighting operations.

[0060] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. An automatic retraction and extension device for fire-fighting water pipes, characterized in that: The device includes a support frame (1), a winding device (2), a drive device (3), a reciprocating device (5), and a guide device (6). The winding device (2) is connected to the support frame (1) and is used for winding the water supply pipe. The drive device (3) is connected to the support frame (1), and the winding device (2) is connected to the drive device (3) to drive the winding device (2) to rotate. The reciprocating device (5) includes a reciprocating screw (51), a guide rod (52), and a moving frame (53). The reciprocating screw (51) and the guide rod (52) are arranged in parallel and are both connected to the support frame (1). The frame (1) is connected, and the movable frame (53) is sleeved on the reciprocating screw (51) and the guide rod (52), and is threadedly connected to the reciprocating screw (51) and slidably connected to the guide rod (52). The reciprocating screw (51) is connected to the drive device (3) to make the reciprocating screw (51) and the winding device (2) move synchronously. The guide device (6) includes a floating rod (61), a first wheel (62), a second wheel (63), a third wheel (64), a fourth wheel (65), a connecting plate (66), and a spring (67). The floating rod (61) The floating rod (61) is slidably connected to the movable frame (53). A through hole (6010) through which a water supply pipe passes is provided on the floating rod (61). A first mounting groove (6011), a second mounting groove (6012), a third mounting groove (6013), and a fourth mounting groove (6014) are provided on the floating rod (61), and the four are evenly distributed around the through hole (6010). The first wheel (62) is located in the first mounting groove (6011), the second wheel (63) is located in the second mounting groove (6012), and the third wheel (64) is located in the third mounting groove (6013). Inside, the fourth wheel (65) is located in the fourth mounting groove (6014). The first wheel (62), the second wheel (63), the third wheel (64) and the fourth wheel (65) are all rotatably connected to the floating rod (61). At least one of the first wheel (62), the second wheel (63), the third wheel (64) and the fourth wheel (65) abuts against the water pipe to guide the water pipe. The connecting plate (66) is connected to the moving frame (53). One end of the spring (67) is connected to the connecting plate (66) and the other end is connected to the floating rod (61).

2. The automatic retraction and extension device for fire-fighting water pipes according to claim 1, characterized in that: The floating rod (61) has a fixed part (611) and a rotating part (612) at its top. The first end of the rotating part (612) is rotatably connected to the fixed part (611), and the second end of the rotating part (612) has a slot (6121). The fourth wheel (65) is connected to the rotating part (612). When the rotating part (612) is in the closed state, the first wheel (62), the second wheel (63), the third wheel (64), and the fourth wheel (65) form a fully enclosed space for the water pipe, and the shaft of the first wheel (62) passes through the slot (6121). When the rotating part (612) is in the open state, the first wheel (62), the second wheel (63), and the third wheel (64) form a semi-enclosed space. The guide device (6) includes a connecting block (68) and a fixing bolt (69). The connecting block (68) is connected to the shaft of the first wheel (62). The fixing bolt (69) is threadedly connected to the connecting block (68). When the rotating part (612) is in the closed state, the fixing bolt (69) passes through the connecting block (68) and abuts against the rotating part (612) to fix the rotating part (612).

3. The automatic retraction and extension device for fire-fighting water pipes according to claim 1, characterized in that: The drive device (3) includes a motor (31) and a first synchronization component (32). The motor (31) is connected to the support frame (1). The first synchronization component (32) includes a drive sprocket (321), a driven sprocket (322), and a first chain (323). The drive sprocket (321) is connected to the motor (31), and the driven sprocket (322) is connected to the winding device (2). The diameter of the driven sprocket (322) is larger than the diameter of the drive sprocket (321). The first chain (323) is sleeved on the drive sprocket (321) and the driven sprocket (322) and meshes with both the drive sprocket (321) and the driven sprocket (322).

4. An automatic retraction and extension device for fire-fighting water pipes according to claim 3, characterized in that: The drive device (3) further includes a second synchronization component (33), which includes a synchronization sprocket (331), a drive sprocket (332), and a second chain (333). The synchronization sprocket (331) is connected to the winding device (2), and the drive sprocket (332) is connected to the reciprocating screw (51). The diameter of the synchronization sprocket (331) is smaller than the diameter of the driven sprocket (322). The second chain (333) is sleeved on the synchronization sprocket (331) and the drive sprocket (332) and meshes with both the synchronization sprocket (331) and the drive sprocket (332).

5. An automatic retraction and extension device for fire-fighting water pipes according to claim 4, characterized in that: Both the first chain (323) and the second chain (333) are connected to a tensioning device (4). The tensioning device (4) includes a first mounting plate (41), an adjusting screw, a tensioning sprocket (43), and an adjusting nut (44). The support frame (1) has an adjusting hole. The adjusting screw passes through the adjusting hole. The first end of the adjusting screw passes through the first mounting plate (41) and is threadedly connected to the adjusting nut (44). The first mounting plate (41) abuts against the support frame (1). The adjusting nut (44) abuts against the first mounting plate (41). The second end of the adjusting nut (44) is connected to the tensioning sprocket (43). The tensioning sprocket (43) meshes with the adjacent first chain (323) or second chain (333). The tensioning sprocket (43) is located on the outside of the chain.

6. An automatic retraction device for fire-fighting water pipes according to claim 5, characterized in that: The tensioning device also includes a second mounting plate (45), a reinforcing screw (46), and a reinforcing nut (47). The second mounting plate (45) is fixedly connected to the support frame (1). The reinforcing screw (46) passes through the second mounting plate (45) and the first mounting plate (41). The reinforcing nut (47) is threadedly connected to the reinforcing screw (46) and abuts against the first mounting plate (41).

7. An automatic retraction and extension device for fire-fighting water pipes according to claim 1, characterized in that: The floating rod (61) is connected to a wiping device (7). The wiping device (7) includes a fixing frame (71), a cleaning plate (72), a cleaning sponge (73), and Velcro (74). The fixing frame (71) is connected to the floating rod (61), the cleaning plate (72) is connected to the fixing frame (71), and the cleaning sponge (73) is connected to the cleaning plate (72) through the Velcro (74). The cleaning sponge (73) is spirally wound around the water pipe.

8. An automatic retraction and extension device for fire-fighting water pipes according to claim 1, characterized in that: It also includes a clamping device (8), which includes a rotating shaft (81), a protrusion (82), a first pressure rod (83), a second pressure rod (84), a clamping rod (85), a clamping roller (86), a connecting rod (87), and a torsion spring (88). The two ends of the rotating shaft (81) are connected to the protrusion (82), and the protrusion (82) is connected to the support frame (1). The first pressure rod (83) and the second pressure rod (84) correspond to the two ends of the rotating shaft (81) and are both connected to the rotating shaft (81). The clamping rod... One end of (85) is connected to the first pressure rod (83) and the other end is connected to the second pressure rod (84). The pressure roller (86) is sleeved on the pressure rod (85) and rotatably connected to the pressure rod (85) for contacting the water pipe. One end of the connecting rod (87) is connected to the first pressure rod (83) and the other end is connected to the second pressure rod (84). The torsion spring (88) is sleeved on the rotating shaft (81). One end of the torsion spring (88) is connected to the support frame (1) and the other end is connected to the connecting rod (87).

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