A labor-saving type of quick winding fire hose car with continuous and automatic drainage partition

Abstract

The application provides a labor-saving type quick winding fire hose vehicle capable of continuous, automatic water drainage and partition, comprising a fire hose trailer, a winding water drainage transmission structure and an automatic partition winding structure, wherein the winding water drainage transmission structure comprises a base and a swing arm pivotally connected to the base on one side, the base and the swing arm are elastically connected through a first spring on the side of the pivot connection, the base is provided with a lower pressing roller, the swing arm is provided with an upper pressing roller, the swing arm is elastically reset through the first spring and is fixed to the base through clamping structure, a space for the fire hose to pass through is reserved between the upper pressing roller and the lower pressing roller after the swing arm is clamped to the base, and the upper pressing roller and the lower pressing roller extrude the fire hose to drain water, wherein the clamping structure is arranged on the side deviated from the pivot connection between the swing arm and the base, and the swing arm can be automatically and repeatedly clamped to the base. The application is convenient for automatically and continuously winding the fire hose, partitioning, automatically draining water, and winding the fire hose and the fire hose joint quickly and labor-savingly.

Description

Technical Field

[0001] This invention pertains to auxiliary equipment for firefighting, specifically relating to a labor-saving, rapid-rewinding fire hose truck with continuous, automatic drainage and zoning. Background Technology

[0002] Fire hoses are flexible tubes used to transport high-pressure water or flame-retardant liquids such as foam. Traditional fire hoses have a rubber inner lining and an outer surface wrapped with linen weaving. Advanced fire hoses are made of polymer materials such as polyurethane. Both ends of the fire hose have metal connectors, which can be connected to another hose to extend the distance or to a nozzle to increase the liquid spray pressure.

[0003] Currently, fire brigades commonly equip themselves with 25m long ø65mm or ø80mm water hoses for long-distance and high-rise water supply. The main methods for hose deployment and unloading are folding and bundling, and half-folding and coiling. The folding and bundling method involves placing the hose on the fire truck, but the hose easily unravels due to the truck's movement. Furthermore, the large weight of a single coil makes it difficult to carry and lay at the fire scene, resulting in unnecessary waste of time and missed opportunities for optimal firefighting. The half-folding and coiling method, while requiring a 25m coil, occupies a large space in equipment boxes, leads to cluttered equipment storage, requires two people to assist with long-distance transport, is difficult to lay, and is prone to tangling during deployment. This results in low efficiency for firefighters, slow unwinding during use, and difficulty in rewinding after use.

[0004] After a fire is extinguished, firefighters are physically exhausted, making it crucial to quickly and efficiently reel in the fire hoses. Traditionally, fire hoses are manually reeled in by firefighters on site. Because the hoses are wet and long, and firefighters have just finished extinguishing a fire, reeling them in easily exhausts them, makes it difficult to squeeze out residual water, and results in heavier hoses, increasing the burden on subsequent transport, affecting efficiency, and delaying firefighting efforts. Therefore, it is essential to find a way for firefighters to effectively reel in and store long, wet fire hoses, and to address the issue of insufficient tightness in the reel due to residual moisture.

[0005] Chinese invention patent CN111632325 discloses a fire hose reeling device, including a base plate, a first column and a second column fixed on the base plate, a rotating tube connected to the second column by a bearing, a first baffle fixed to the end of the rotating tube, a central cylinder on the first baffle, a strip-shaped opening on the side wall of the central cylinder, and a driving assembly on the base plate; a first support shaft and a second support shaft on the first column, a first rotating sleeve and a second rotating sleeve respectively fitted on the first and second support shafts, the second support shaft being fixed to the side of the first column, and a pressing assembly on the first column. This fire hose reeling device works by passing the hose between the first and second rotating sleeves and extending it through the strip-shaped opening, embedding the hose head into the central cylinder, and rotating the central cylinder with a motor to reel in the hose. The first and second rotating sleeves squeeze the hose, expelling any residual water from the hose. However, when winding up fire hoses, the wet and heavy fire hoses need to be pulled to the winding device, which increases the physical exertion of firefighters and prolongs the winding time. In addition, it cannot allow fire hose joints to pass through, and can only wind up sections of fire hose. It cannot wind up fire hoses with multiple joints, and manual operation is required to wind them up section by section, which cannot truly free up manpower.

[0006] In addition, when the fire hose is being wound up, only a small amount of water remains, and it is flat. The fire hose joint is made of metal and protrudes. When the fire hose and the fire hose joint are wound on the same roll, it is very easy for some fire hose joints to be wrapped around the fire hose. However, when the fire hose is wound up, the fire hose joints slip off and are wound onto another roll. This results in some fire hoses being tightly wound and others slipping and loosening. There is a high-to-low connection slope at the connection between the fire hoses, which causes uneven winding and messy winding of the fire hose. It is easy for the fire hose to get stuck and unable to turn, or to be piled up in a messy state, affecting the winding capacity of the fire hose and affecting the subsequent use of the fire hose.

[0007] Therefore, how to completely solve the problems of fire hoses and fire hose joints not being able to be continuously wound, fire hoses not being able to drain completely, and fire hoses not being able to pass through when folded, and simultaneously achieve continuous winding of fire hoses and fire hose joints, fire hose drainage, and fire hoses that can pass through when folded, and how to automatically wind fire hoses in a labor-saving and fast manner, and improve the winding amount and the uniformity and regularity of winding, are technical problems that urgently need to be solved by those skilled in the art. Summary of the Invention

[0008] The purpose of this invention is to address the problems in fire hose reeling in the prior art by providing a labor-saving, fast-reeling fire hose vehicle with continuous, automatic drainage zoning.

[0009] Therefore, the above-mentioned objectives of the present invention are achieved through the following technical solutions:

[0010] A labor-saving, rapid-rewinding fire hose truck with continuous, automatic drainage zoning, characterized in that:

[0011] This includes fire hose trailers, drainage drive structures for hose reeling, and automatic zoned hose reeling structures.

[0012] The fire hose trailer includes a tie rod, a frame, and a wheel assembly; one end of the tie rod is connected to the frame, and the other end is used as a handle for firefighters to pull; the wheel assembly is installed at the lower end of the frame, and an automatic partitioned winding structure is installed at the upper end; an auxiliary tie rod is fixedly installed at the upper end of the frame to enable the fire hose trailer to move in any direction.

[0013] The drainage transmission structure for winding includes a base and a swing arm pivotally connected to the base on one side. The base and the swing arm are elastically connected by a first spring on the pivotal connection side. The base is provided with a lower pressure roller, and the swing arm is provided with an upper pressure roller. The swing arm is reset by the elastic rebound of the first spring and fixedly clamped to the base by a clamping structure. After the swing arm and the base are clamped, a space is reserved between the upper pressure roller and the lower pressure roller for the fire hose to pass through. The upper pressure roller and the lower pressure roller squeeze the fire hose to drain water. The clamping structure is provided on the side away from the pivotal connection between the swing arm and the base, and can automatically and repeatedly clamp the swing arm and the base.

[0014] A trigger rod is installed on the outside of the upper pressure roller of the swing arm. The trigger rod is equipped with a trigger element. The inner side of the trigger element is fixedly installed on the trigger rod, and the outer side is a gentle arc surface to allow the fire hose connector to contact and rotate from different angles. The fire hose connector pushes the trigger element to rotate, and the rotation of the trigger element drives the trigger rod to rotate to release the clamping structure and push the swing arm to rotate. The clamping structure opens, and the swing arm rotates to open the opening between the base and the upper pressure roller, widening the gap between the upper and lower pressure rollers to allow the fire hose connector to pass through. After the fire hose connector passes through, the first spring rebounds and pulls the swing arm back. The clamping structure automatically clamps the swing arm to the base, so that the upper and lower pressure rollers squeeze and discharge the water in the fire hose.

[0015] The automatic zoned winding structure includes a spool and a hub motor assembly, a motor, and a lead screw. The spool is axially divided into a winding zone and a knotting zone. The hub motor assembly drives the spool to rotate and wind up the fire hose from the drainage transmission structure. A trigger is set at the mating position of the swing arm and the base. When the fire hose joint passes through, the swing arm opens the opening between the base and the trigger, which in turn triggers the motor to run. The motor drives the lead screw to rotate, causing the drainage transmission structure to move to the knotting zone to wind up the fire hose joint. After the fire hose joint passes through, when the swing arm closes with the base, the trigger is triggered again. The motor and lead screw then drive the drainage transmission structure to move to the winding zone to wind up the fire hose.

[0016] While adopting the above technical solutions, the present invention may also adopt or combine the following technical solutions:

[0017] As a preferred technical solution of the present invention: the fire hose conveying mechanism is installed on the frame by a connecting bracket, and the connecting bracket supports the screw rod parallel to the reel;

[0018] The frame includes frame beams and frame supports. The upper end of the frame supports supports the frame beams, and a detachable roller is installed on the frame beams. A wheel set is installed at the lower end of the frame supports. The frame beams are U-shaped in the horizontal direction, and the roller is installed at one end of the U-shaped opening of the frame. A folding mounting arm is hinged to the ends of the frame beams on both sides of the U-shaped opening. The folding mounting arm has a pre-reserved mounting groove on the side of the frame beam facing the frame beam. When the folding mounting arm flips down and presses down on the frame beam, the roller is detachably fixed to the frame beam.

[0019] The reel includes a drum, a drum shaft, and a rotating wheel. The drum is rotatably mounted on the frame via the drum shaft. The rotating wheels are fixed to both ends of the drum shaft. When the hub motor assembly drives the rotating wheels to rotate, the fire hose is wound up.

[0020] The outer diameter of the reel is larger than that of the drum to prevent the fire hose or joint from detaching from the space where it is wound on the drum;

[0021] The drum is provided with partition columns, and two or more partition columns are arranged radially. Space is reserved between each partition column for the fire hose to pass through. The partition columns are installed on the drum to divide the drum into a winding area and a fastening area.

[0022] The base is provided with guide rail holes and lead screw holes. The guide rail is installed through the guide rail holes to slide the base, and the lead screw is installed through the lead screw holes to drive the drainage transmission structure for winding to move. The direction of movement is parallel to the axial direction of the winding shaft. The lead screw is installed in the lead screw holes to drive the base to slide.

[0023] An automatic control system is provided. The trigger sends a trigger signal to the automatic control system. After receiving the trigger signal, the automatic control system starts the motor to drive the screw to move the distributor to the coupling area for winding and to send the fire hose connector to the coupling area for winding.

[0024] A mobile power supply is also provided, which is electrically connected to the hub motor assembly, the motor and the automatic control system to provide driving power for them. The mobile power supply is installed on the fire hose trailer.

[0025] As a preferred technical solution of the present invention: the hub motor assembly includes a hub motor and a transmission mechanism base. The hub motor is mounted on the transmission mechanism base and is externally connected to the lower end of the wheel. The hub motor rotates to drive the wheel to rotate and wind the fire hose.

[0026] The hub motor assembly also includes a tension spring and a hinge connector. The hub motor's shaft is mounted on the hinge connector, which is pivotally mounted on the transmission mechanism base. The hub motor is pivotally connected to the transmission mechanism base via the hinge connector. The lower end of the tension spring is mounted on the transmission mechanism base, and the upper end is tensioned to support the hub motor. The hub motor elastically presses against and drives the wheel to rotate.

[0027] And / or, the hub motor is equipped with a throttle to control the forward and reverse rotation and the rotation speed of the hub motor;

[0028] And / or, both the hub motor and the wheel are made of high-friction round wheels, and the side of the wheel facing the hub motor is made of a flexible material;

[0029] And / or, the rotating wheel is provided with a magnetic sensor at a matching position, and the frame is provided with a magnetic induction switch at a matching position. The magnetic induction switch detects the number of rotations of the rotating wheel and the reel by detecting the number of magnetic sensors, so as to calculate the length of the fire hose reel winding or unwinding.

[0030] And / or, the frame beam and the folding mounting arm are provided with a hinge locking device, the hinge locking device includes a buckle on the frame beam and a locking hook at the mating position of the folding mounting plate. When the folding mounting arm is pressed down to the mating position, the locking hook presses into the buckle to lock the folding mounting arm on the frame beam.

[0031] And / or, the frame beam is provided in two parts, one above the other, with the lower end of the tie rod installed on the two support beams and the upper end of the tie rod used as a handle;

[0032] And / or, the tie rods on the frame beam are telescopic;

[0033] And / or, the wheel set is selected as a climbing wheel.

[0034] As a preferred technical solution of the present invention: the base includes two side baffles and a bottom plate for fixing the two side baffles. The two side baffles are respectively fixedly installed with shafts at both ends of the lower pressure roller. The two side baffles are higher than the height of the lower pressure roller and form a U-shaped opening for fire hoses to pass through and limit their movement.

[0035] The swing arm includes a left swing arm and a right swing arm. The bottom of the left and right swing arms is pivotally mounted on the outside of the baffle. The left and right swing arms are respectively fixed to the shafts at both ends of the upper pressure roller. The left and right swing arms are respectively fixed to the upper end of the upper pressure roller and the outer end of the trigger rod, so that when the fire hose interface passes through, the trigger element is triggered first, releasing the clamping structure and allowing the swing arm to rotate relative to the base to expand the distance between the upper and lower pressure rollers.

[0036] As a preferred technical solution of the present invention: the clamping structure includes a limiting hook, a hook groove, and a second spring;

[0037] The trigger rod is rotatably mounted between the left and right swing arms, and limit hooks are fixedly mounted at both ends of the trigger rod. When the trigger rod rotates, it drives the limit hooks to rotate.

[0038] The base is provided with a hook groove at the matching position. When the limit hook is fastened in the hook groove, it hooks the swing arm on the base. When the trigger rod rotates, it drives the limit hook to rotate away from the hook groove, which drives the swing arm to release the hook from the base. The limit hook is connected to the swing arm through the second spring and is reset to the hook groove by the second spring.

[0039] The hook portion of the limiting hook is a sliding surface.

[0040] As a preferred technical solution of the present invention: the hook groove is provided with a gentle arc surface for the limit hook to move back and forth. The gentle arc surface is located on the upper side of the hook groove. The limit hook slides into or away from the gentle arc surface to hook into or out of the hook groove.

[0041] As a preferred technical solution of the present invention: the hook groove is provided with a limiting hook guide slope, the limiting hook guide slope is set at the sliding front end that slides into the hook groove, the limiting hook guide slope provides the limiting hook to resist the elastic force of the second spring to gradually open and slide down until it is locked into the hook groove.

[0042] As a preferred technical solution of the present invention: the hook-and-container groove is equipped with an adjustment component, the adjustment component includes a second hook-and-container groove and an adjustment rod, the second hook-and-container groove is fixedly installed on the upper end of the adjustment rod and is designed to be close to the hook-and-container groove, and the groove of the second hook-and-container groove is similar to the groove of the hook-and-container groove, the adjustment rod is height-adjustably installed on the outside of the baffle to adjust the height of the hook-and-container groove hook limit hook, adjust the hook-and-container angle of the swing arm and the baffle, and adjust the distance between the upper pressure roller and the lower pressure roller to adapt to fire hoses of different thicknesses.

[0043] As a preferred technical solution of the present invention: the lower end of the adjusting rod is provided with an adjusting rod adjusting hole, the adjusting rod adjusting hole is provided with an adjusting inclined surface, and the adjusting inclined surface is used to lock the adjusting screw at different height positions to adjust the height position of the adjusting rod;

[0044] Alternatively, the adjusting rod is placed against the outer wall of the baffle, and dimensions are set on both the baffle and the adjusting rod. The baffle is used as a main scale, and the adjusting rod is used as a vernier to precisely control the height position of the adjusting rod.

[0045] Alternatively, the adjusting component may also be provided with a locking hook, one end of which is rotatably mounted on the baffle, and the other end of which is provided with a groove for a locking limit hook. The locking limit hook rotates to fix the gap between the upper pressure roller and the lower pressure roller.

[0046] As a preferred technical solution of the present invention: the base is provided with a guide slope on the side that is offset from the pivot of the swing arm for the fire hose connector to be supported and slid.

[0047] The guide ramp is equipped with a front roller at its lowest point.

[0048] As a preferred technical solution of the present invention: the first spring is a tension spring, which is symmetrically arranged on both sides of the baffle and respectively connects the left swing arm to one side baffle and the right swing arm to the other side baffle;

[0049] Alternatively, the first spring may be a torsion spring, and the left swing arm and one side baffle, as well as the right swing arm and the other side baffle, may be reset by installing a torsion spring at the pivot connection.

[0050] As a preferred technical solution of the present invention: the two ends of the rotating shaft of the lower pressure roller are provided with eccentric blocks, the eccentric blocks are square, and the distance from the axis of the rotating shaft of the lower pressure roller to each side of the eccentric block is different;

[0051] The eccentric block can be detachably installed on the base. Rotating the eccentric block adjusts the installation position of the lower pressure roller on the base.

[0052] The drainage transmission structure for fire hose reeling provided by this invention, through the cooperation of a swing arm, base, and clamping structure, achieves continuous and automatic reeling of fire hoses and hose couplings, and can fully drain water from the fire hoses. Utilizing the cooperation of a trigger rod and trigger element, the clamping structure is quickly and accurately released, providing space for the fire hose couplings to open and pass through. The sliding surface of the limiting hook allows it to automatically slide into or out of the hook groove. The smooth arc surface of the hook groove, in cooperation with the sliding surface of the limiting hook, provides elastic space for the passage of folded fire hoses and effectively drains water from single-layer fire hoses. This drainage transmission structure for fire hose reeling eliminates the need for manual reeling of fire hoses piece by piece, enabling automatic and continuous reeling and simultaneous reeling and drainage. The transmission is smooth and can flexibly adapt to the drainage transmission of folded fire hoses or fire hoses containing foreign objects. This invention utilizes an automatic zoned winding structure to automatically drive a drainage transmission structure for winding, thereby enabling zoned transmission of fire hoses and fire hose connectors. This ensures that the fire hoses and fire hose connectors are respectively transmitted to different positions on the drum for winding, and that the fire hoses and fire hose connectors are wound evenly on the drum.

[0053] In this invention, the fire hose trailer, through an automatic control system and various sensor designs, achieves real-time control of the length of the wound fire hose, realizing real-time monitoring of the fire hose winding length. It utilizes a mobile power source to provide power to the hub motor assembly, motor, and automatic control system, completely freeing firefighters from manual labor in winding the fire hose, providing them with a labor-saving fire hose winding vehicle. This invention provides a continuous, automatic drainage zoned, labor-saving, and fast-winding fire hose trailer. Through a drainage transmission structure for winding and an automatic zoned winding structure, it continuously and automatically drains and winds the fire hose in zones. When firefighters are laying the fire hose, they control the reel's reverse rotation and speed via a throttle handle for faster and more efficient deployment. When firefighters are winding the fire hose, they control the reel's forward rotation and speed via the throttle handle, propelling the wheel assembly forward. During this forward movement, it continuously and automatically drains and winds the fire hose in zones, eliminating the need for firefighters to pull wet and heavy fire hoses. This fire hose reel is extremely labor-saving. Furthermore, the process of reeling in the fire hose while moving forward changes the existing technology's action of pulling back the fire hose and then reeling it in. Instead, it reels in the hose while moving forward, saving time and making the reeling process more efficient. This invention utilizes a fire hose trailer, a drainage transmission structure for reeling, and an automatic zoned reeling structure. Through a simple and stable structure, it achieves a labor-saving, fast-reeling fire hose vehicle that is convenient to operate, easy to use, and portable, with continuous and automatic drainage zones. It has broad application prospects in the field of fire hose reeling and has great value for widespread application. Attached Figure Description

[0054] Figure 1 This is a partial exploded structural diagram of the locking hook of the drainage transmission structure for winding according to the present invention;

[0055] Figure 2 This is a schematic diagram of the structure of the swing arm 2 and base 1 when they are open according to the present invention. Figure 1 ;

[0056] Figure 3 This is a schematic diagram of the structure of the swing arm 2 and base 1 when they are open according to the present invention. Figure 2 ;

[0057] Figure 4 This is a schematic diagram of the structure of the swing arm 2 and the base 1 when they are closed. Figure 1 ;

[0058] Figure 5 This is a schematic diagram of the structure of the swing arm 2 and the base 1 when they are closed. Figure 2 ;

[0059] Figure 6 This is a schematic diagram of the structure of the swing arm 2 and the base 1 when they are slightly open according to the present invention;

[0060] Figure 7 This is a schematic diagram of the rotating shaft structure of the present invention;

[0061] Figure 8 This is a front view of the rotating shaft of the present invention;

[0062] Figure 9 This is a schematic diagram of the structure of the hub motor assembly driving the connecting roller of the present invention;

[0063] Figure 10 This is a schematic diagram of the connection structure between the reel and the drainage transmission structure for winding according to the present invention;

[0064] Figure 11 An exploded view of the continuous, automatic drainage zoned labor-saving rapid-rewinding fire hose truck of the present invention;

[0065] Figure 12 This is a schematic diagram of the fire hose trailer of the present invention when deployed;

[0066] Figure 13 This is a schematic diagram of the structure of the fire hose trailer of the present invention when it is folded. Figure 1 ;

[0067] Figure 14 This is a schematic diagram of the structure of the fire hose trailer of the present invention when it is folded. Figure 2 ;

[0068] Figure 15 This invention illustrates the concept of a localized explosion when a fire hose trailer overturns.

[0069] Figure 16 This is a partial exploded view of the base bracket of the present invention;

[0070] Figure 17 This is a structural schematic diagram of a labor-saving, rapid-rewinding fire hose truck with continuous, automatic drainage zoning according to the present invention.

[0071] In the attached diagram, the components are: base 1; baffle 101; bottom plate 102; guide slope 103; hook groove 104; limit hook guide slope 105; front roller 106; gentle arc surface 1041; swing arm 2; left swing arm 201; right swing arm 202; limit hook 204; upper pressure roller 3; lower pressure roller 4; first spring 5; trigger 6; reel 7; drum 701; rotating wheel 702; drum shaft 703; quick connection interface 704. Handle hole 705; Magnetic sensor 706; Winding area 707; Fastening area 708; Partition post 709; Trigger rod 8; Trigger element 801; Second spring 9; Adjusting component 11; Second hook groove 1101; Adjusting rod 1102; Adjusting rod adjusting hole 1103; Adjusting screw 1104; Adjusting inclined plane 1105; Motor 12; Locking hook 13; Eccentric block 14; Lead screw 15; Wheel hub motor assembly 16; Wheel Hub motor 161; Hinged connector 162; Transmission mechanism base 163; Tension spring 164; Smooth rod 17; Pull rod 18; Handle handle 1802; Pull rod connecting rod mounting section 1803; Pull rod connecting rod telescopic section 1804; Wheel set 19; Frame 20; Frame beam 2001; Frame beam 2001; Frame support column 2002; Folding mounting arm 2003; Mounting slot 2004; Shelf 2005; Frame beam Upper mounting section 2006; Lower mounting section of frame beam 2007; U-shaped part 2008; Lock 2009; Lock hook 2010; Turn handle 21; Power bank 22; Automatic control system 23; Pull pin 24; Connecting steel wire 25; Pin 26; Plastic sleeve 27; Base bracket 28; Pin hole 2801; First pull pin positioning hole 2802; Second pull pin positioning hole 2803; Pull pin 2804; Pull ring 29; Steel wire 30. Detailed Implementation

[0072] The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

[0073] Example 1

[0074] like Figures 1-10 As shown, the present invention discloses a labor-saving, rapid-rewinding fire hose cart with continuous, automatic drainage zoning, comprising a fire hose trailer, a drainage transmission structure for rewinding, and an automatic zoning rewinding structure.

[0075] The fire hose trailer includes a pull rod 18, a frame 20, and a wheel set 19; one end of the pull rod 18 is connected to the frame 20, and the other end is used as a handle for firefighters to pull. The handle is equipped with a throttle 21 for controlling the power supply of the equipment, the forward and reverse rotation of the hub motor, and the rotation speed of the hub motor.

[0076] The wheel set 19 is installed at the bottom of the frame 20, and the auxiliary tie rod 18 enables the fire hose truck to move in any direction;

[0077] The drainage transmission structure for winding includes a base 1 and a swing arm 2 pivotally connected to the base 1 on one side. The base 1 and swing arm 2 are elastically connected on the pivotal connection side by a first spring 5. The base 1 is equipped with a lower pressure roller 4, and the swing arm 2 is equipped with an upper pressure roller 3. The swing arm 2 is elastically returned to its original position by the first spring 5 and is fixedly clamped to the base 1 by a clamping structure. After the swing arm 2 and base 1 are clamped, a space is reserved between the upper pressure roller 3 and the lower pressure roller 4 for the passage of a fire hose. The upper pressure roller 3 and the lower pressure roller 4 squeeze the fire hose to drain water. The clamping structure is located on the side offset from the pivotal connection between the swing arm 2 and the base 1, and can automatically and repeatedly clamp the swing arm 2 and the base 1. The swing arm 2 is mounted on the outside of the upper pressure roller 3. A trigger rod 8 is installed, and a trigger element 801 is provided on the trigger rod 8. The inner side of the trigger element 801 is fixedly installed on the trigger rod 8, and the outer side is a gentle arc surface so that the fire hose connector can contact and push the fire hose connector to rotate from different angles. The fire hose connector pushes the trigger element 801 to rotate, and the rotation of the trigger element 801 drives the trigger rod 8 to rotate to release the clamping structure and push the swing arm 2 to rotate. The clamping structure opens, the swing arm 2 rotates to open the opening between the base 1, and the gap between the upper pressure roller 3 and the lower pressure roller 4 is widened to allow the fire hose connector to pass through. After the fire hose connector passes through, the first spring 5 rebounds and pulls back the swing arm 2. The clamping structure automatically clamps the swing arm 2 and the base 1, so that the upper pressure roller 3 and the lower pressure roller 4 squeeze and discharge the water in the fire hose.

[0078] This invention discloses a continuous, automatic, zoned, labor-saving, rapid-winding fire hose reel. An upper pressure roller 3 is fixedly mounted on a swing arm 2, and a lower pressure roller 4 is fixedly mounted on a base 1. One end of the swing arm 2 is pivotally mounted on the base 1, and the other end can be repeatedly clamped via a clamping structure. This allows the upper and lower pressure rollers 3 and 4 to pass through the fire hose, squeezing and discharging the water from the hose. An improved drainage transmission structure for fire hose reeling utilizes a trigger element 801 to drive a trigger rod 8 to rotate. When the fire hose joint passes through, it pushes the swing arm to rotate, automatically releasing the clamping structure and allowing the fire hose joint to pass automatically. After the fire hose joint passes through, a first spring 5 pulls back the swing arm 2, and the clamping structure automatically clamps the swing arm 2 and the base 1, thus clamping the fire hose between the upper and lower pressure rollers 3 and 4.

[0079] When it is necessary to rewind the fire hose, the clamping structure clamps the opening side of the swing arm 2 and the base 1. The transmission structure for rewinding the fire hose of the present invention squeezes out the remaining water in the fire hose, making it easier to rewind.

[0080] When the fire hose connector needs to pass through, the fire hose connector first touches the trigger 801 and drives the trigger 801 to rotate. The trigger 801 is fixedly installed on the trigger rod 8. The trigger rod 8 is driven to rotate by the trigger 801. The rotation of the trigger rod 8 releases the clamping structure, opens the opening between the swing arm 2 and the base 1, and also expands the distance between the lower pressure roller 4 and the upper pressure roller 3, providing a channel for the fire hose connector to pass through automatically.

[0081] The present invention discloses a labor-saving, fast-rewinding fire hose truck with continuous and automatic drainage zoning. Through the cooperation of the clamping structure, the swing arm 2 and the base 1 are automatically and repeatedly opened and closed, so as to realize the continuous and uninterrupted passage of fire hoses and fire hose joints, and simultaneously realize that the fire hoses can be fully squeezed to drain water and the fire hose joints can pass continuously and smoothly.

[0082] In this invention, after the fire hose connector passes through, the fire hose connector is connected to the fire hose. The swing arm 2 and the base 1 can be automatically pulled back by the rebound force of the first spring 5 to reduce the opening of the swing arm 2 and the base 1, thereby reducing the distance between them. The clamping structure automatically clamps the swing arm and the base 1, so that the upper pressure roller 3 and the lower pressure roller 4 can squeeze and discharge the water in the fire hose.

[0083] The automatic zoned winding structure includes a spool 7, a hub motor assembly 16, a motor 12, and a lead screw 15. The spool 7 is divided into a winding zone and a knotting zone in the axial direction. The hub motor assembly 16 drives the spool 7 to rotate and wind up the fire hose from the drainage transmission structure. A trigger 6 is set at the mating position of the swing arm 2 and the base 1. When the fire hose joint passes through, the swing arm 2 opens the opening with the base 1, triggering the trigger 6. The trigger 6 triggers the motor 12 to run, and the motor 12 drives the lead screw 15 to rotate, causing the winding drainage transmission structure to move to the knotting zone 708 side to wind up the fire hose joint. After the fire hose joint passes through, when the swing arm 2 closes with the base 1, triggering the trigger 6, the motor 12 and the lead screw drive the winding drainage transmission structure to move to the winding zone 707 side to wind up the fire hose.

[0084] In this invention, the automatic winding and drainage of fire hoses are achieved through the cooperation of the drainage transmission structure for winding and the automatic zoned winding structure. Triggered by the trigger 6, the drainage transmission structure for winding is moved to different positions on the smooth rod 17 so that the fire hose can be wound to the winding area 707 and the fire hose joint can be wound to the knot area 708. This achieves continuous, automatic zoned, and effective drainage of the fire hose and fire hose joint, and smooth and orderly winding onto the reel 7. It effectively solves the problems of uneven winding of fire hoses caused by large differences in the shape and height of the fire hose and fire hose joint, and disordered winding and unevenness caused by winding in different axial directions. This avoids reducing the length of the wound fire hose or affecting the use of the fire hose.

[0085] The fire hose conveying mechanism is mounted on the frame 20 via a folding mounting arm 2003. The folding mounting arm 2003 supports the lead screw 15 and is arranged parallel to the reel 4. One end of the folding mounting arm 2003 is folded and mounted on the frame 20, and the other end is fixedly mounted with the motor 12, lead screw 15 and guide rod 17. The folding mounting arm 2003 is a structural rod.

[0086] The frame 20 includes a frame beam 2001 and a frame support 2002. The upper end of the frame support 2002 supports the frame beam 2001. A roller 7 is detachably installed on the frame beam 2001. A wheel set 19 is installed on the lower end of the frame support 2002.

[0087] The frame beam 2001 is U-shaped in the horizontal direction, and the roller 7 is installed at one end of the U-shaped opening of the frame beam 2001.

[0088] A folding mounting arm 2003 is hinged to the ends of the frame beam 2001 on both sides of the U-shaped opening. The folding mounting arm 2003 has a pre-reserved mounting groove 2004 on the side of the frame beam 2001 facing the frame beam 2001. When the folding mounting arm 2003 flips down and presses onto the frame beam 2001, the scroll 7 is detachably fixed onto the frame beam 2001.

[0089] The frame beam 2001 and the folding mounting arm 2003 are provided with a hinge locking device. The hinge locking device includes a buckle on the frame beam 2001 and a locking hook on the folding mounting arm 2003 at the matching position. When the folding mounting arm 2003 is pressed down to the matching position, the locking hook presses into the buckle to lock the folding mounting arm 2003 on the frame beam 2001.

[0090] The frame beam 2001 is provided in two parts, one at the top and one at the bottom. The lower end of the tie rod 18 is installed on the two frame beams 2001, and the upper end of the tie rod 18 is used as a handle.

[0091] The pull rod 18 is a telescopic pull rod, which is convenient for people of different body types to use.

[0092] The wheel set 19 is a climbing wheel, which is convenient for climbing.

[0093] A mobile power supply 22 is also provided, which provides power to the hub motor assembly, the motor and the automatic control system. The mobile power supply is installed on the fire hose trailer.

[0094] The reel 7 includes a drum 701, a drum shaft 703 and a rotating wheel. The drum 701 is rotatably mounted on the frame via the drum 701 shaft. The rotating wheel is fixedly connected to both ends of the drum 701 axially. When the hub motor assembly drives the rotating wheel to rotate, it winds up the fire hose.

[0095] The outer diameter of the rotating wheel is larger than that of the drum 701 to prevent the fire hose or joint from detaching from the space where the drum 701 is wound.

[0096] The drum 701 is provided with partition columns 709. Two or more partition columns are arranged radially, and a space is reserved between each partition column for the fire hose to pass through. The partition columns are installed on the drum 701 to divide the drum 701 into a winding area and a fastening area.

[0097] The base 1 is provided with guide rail hole 207 and lead screw hole 208. The guide rail is installed through the guide rail hole 207 to slide the base 1. The lead screw 15 is installed through the lead screw hole 208 to drive the winding drainage transmission structure to move. The moving direction is parallel to the axial direction of the roll 7. The lead screw is installed in the lead screw hole 208 to drive the base 1 to slide.

[0098] An automatic control system 23 is also provided. Trigger 6 transmits a trigger signal to the automatic control system 23. Upon receiving the trigger signal, the automatic control system 23 starts motor 12 to drive lead screw 15, moving the drainage transmission structure for winding to the mating position in the coupling area 708, thus transferring the fire hose connector to the coupling area 708. It also controls hub motor 161 to rotate, driving wheel 702 to rotate for better placement of the fire hose connector in the coupling area 708. In this invention, after reserving a set time for winding in the coupling area 708, motor 12 automatically starts to drive lead screw 15, transferring the drainage transmission structure for winding to the winding area. Once in the winding area, the firefighter controls handle 21 to select an appropriate winding speed and forward / reverse rotation according to the actual situation.

[0099] The reel 7 includes a drum 701, which is rotatably mounted on the frame 20 via a drum shaft 703. The hub motor assembly rotates the drum 701, and the outer wall of the drum 701 rolls the fire hose. In this structure, a drum 701 with a considerable axial length is selected, which can roll the fire hose radially and move axially to roll the fire hose through a conveying mechanism. Through the setting of the partition column 709 and the cooperation of the conveying mechanism, the fire hose and the fire hose interface of the partition are wound separately.

[0100] The outer wall of the drum is provided with a quick connection interface 704, which is an annular groove. The quick connection interface 704 is embedded in the drum 701 and is located at the axial end of the drum 701.

[0101] A magnetic sensor 706 is installed on the rotating wheel 702 at a matching position, and a magnetic induction switch is installed on the frame 20 at a matching position. The magnetic induction switch detects the number of rotations of the rotating wheel 702 and the reel 7 by detecting the number of magnetic sensors 706, so as to calculate the length of the fire hose winding or unwinding, and thereby determine whether the reel 7 continues to wind and whether the motor 12 drives the lead screw 15 to rotate and move the distributor.

[0102] When rolling fire hoses, the fire hose connector is fixed relative to the fire hose connector 704 to achieve quick insertion of the fire hose connector, which can start the fire hose winding and laying as quickly as possible.

[0103] The drum 701 is fixedly mounted with rollers 702 at both axial ends. The rollers 702 protrude from the outer wall of the drum 701 to prevent the fire hose from detaching from the drum 701. After the fire hose is wound up, the rollers 702 can roll and move directly on the ground, moving the fire hose synchronously. At the same time, the rollers 702 are provided with several handle holes 705. The handle holes 705 are selected from the gap between the hubs of the rollers 702 to facilitate lifting the drum 701 through the rollers 702.

[0104] The automatic zoned winding structure includes a hub motor 161, which is connected to a rotating wheel 702 to rotate, thereby driving the drum 701 to rotate and roll the fire hose.

[0105] The hub motor 161 is equipped with a mobile power source to facilitate the carrying, transportation and use of the automatic fire hose reel device, while also reducing the weight of the entire automatic fire hose reel device.

[0106] The hub motor 161 drives the external transmission wheel 702. In this structure, both the hub motor 161 and the wheel 702 are made of high friction coefficient round wheels to avoid gear transmission. This is to prevent the hub motor 161 from malfunctioning and the gear from not being able to rotate when the firefighters use it violently. When using high friction coefficient round wheels, even if the hub motor 161 malfunctions, the fire hose can still be wound up by manually rotating the wheel 702 to rotate the drum 701.

[0107] The side of the wheel 702 that contacts the hub motor 161 is made of a flexible material, such as polyurethane, to improve the frictional transmission between the wheel 702 and the hub motor 161.

[0108] The hub motor assembly 16 also includes a transmission mechanism base 163 and a hinged connector 162. The hinged connector 162 is elastically hinged to the transmission mechanism base 163, and the hub motor 161 is mounted on the hinged connector 162. The higher side of the transmission mechanism base 163 is hinged to the hinged connector 162, and the lower side is provided with a tension spring 164. The tension spring 164 elastically presses against the hub motor 161, allowing the hub motor 161 to exert appropriate pressure on the rotating wheel 702, thereby achieving frictional transmission between the hub motor 161 and the rotating wheel 702.

[0109] The hub motor 161 is externally connected to the lower end of the wheel 702, and is elastically hinged to the transmission mechanism base 163 via the hinge connector 162 to achieve rotational transmission of the wheel 702.

[0110] The hub motor 161 of this device is hinged and elastically clamped to ensure the effect of external cutting transmission. Even if the hub motor assembly 16 fails due to operation caused by firefighter violence, it can still be manually wound up.

[0111] In this structure, through the precise transmission of the motor 12 and the cooperation between the motor 12 and the lead screw 15, the fire hose is neatly, orderly, and automatically wound up to different positions on the drum 701, which also makes the winding of the fire hose stable and fast.

[0112] In this invention, the fire hose trailer, through an automatic control system and various sensor designs, achieves real-time control of the length of the wound fire hose, realizing real-time monitoring of the fire hose winding length. It utilizes a mobile power source to provide power to the hub motor assembly, motor, and automatic control system, completely freeing firefighters from manual labor in winding the fire hose, providing them with a labor-saving fire hose winding vehicle. This invention provides a continuous, automatic drainage zoned, labor-saving, and fast-winding fire hose trailer. Through a drainage transmission structure for winding and an automatic zoned winding structure, it continuously and automatically drains and winds the fire hose in zones. When firefighters are laying the fire hose, they control the reel's reverse rotation and speed via a throttle handle for faster and more efficient deployment. When firefighters are winding the fire hose, they control the reel's forward rotation and speed via the throttle handle, propelling the wheel assembly forward. During this forward movement, it continuously and automatically drains and winds the fire hose in zones, eliminating the need for firefighters to drag wet and heavy fire hoses. This fire hose reel is extremely labor-saving. Furthermore, the process of reeling in the fire hose while moving forward changes the existing technology's action of pulling back the fire hose and then reeling it in. Instead, it reels in the hose while moving forward, saving time and making the reeling process more efficient. This invention utilizes a fire hose trailer, a drainage transmission structure for reeling, and an automatic zoned reeling structure. Through a simple and stable structure, it achieves a labor-saving, fast-reeling fire hose vehicle that is convenient to operate, easy to use, and portable, with continuous and automatic drainage zones. It has broad application prospects in the field of fire hose reeling and has great value for widespread application. In this invention, the base 1 includes two side baffles 101 and a bottom plate 102 that fixes the two side baffles 101. The two side baffles 101 are respectively fixedly installed with shafts at both ends of the lower pressure roller 4. The two side baffles 101 are higher than the lower pressure roller 4 and form a U-shaped opening for the fire hose to pass through and limit its movement. The swing arm 2 includes a left swing arm 201 and a right swing arm 202. The bottom of the left swing arm 201 and the right swing arm 202 are respectively pivotally installed on the outside of the baffle 101. The left swing arm 201 and the right swing arm 202 are respectively fixed with shafts at both ends of the upper pressure roller 3. The left swing arm 201 and the right swing arm 202 are respectively fixedly installed with the two ends of the trigger rod 8 at the upper end of the upper pressure roller 3 and slightly outward, so that when the fire hose interface passes through, the trigger element 801 is triggered first, releasing the clamping structure and allowing the swing arm 2 to rotate relative to the base 1 to expand the distance between the upper pressure roller 3 and the lower pressure roller 4.

[0113] The clamping structure includes a limiting hook 204, a hook receiving groove 104, and a second spring 9; the trigger rod 8 is rotatably installed between the left swing arm 201 and the right swing arm 202, and the limiting hooks 204 are fixedly installed at both ends of the trigger rod 8. When the trigger rod 8 rotates, it drives the limiting hooks 204 to rotate; the base 1 is provided with a hook receiving groove 104 at the matching position. When the limiting hook 204 is hooked into the hook receiving groove 104, it hooks the swing arm 2 onto the base 1; when the trigger rod 8 rotates, it drives the limiting hook 204 to rotate away from the hook receiving groove 104, thereby causing the swing arm 2 to release from the hooking groove 1. The limiting hook 204 is connected to the swing arm 2 through the second spring 9, and is reset to the hook receiving groove 104 by the second spring 9; wherein, the hooking part of the limiting hook 204 is a sliding surface.

[0114] The hooking part of the limiting hook 204 is a sliding surface. In this invention, the hooking part of the limiting hook 204 is a sliding surface, which provides stress and movement direction for the hook receiving groove 104 and the limiting hook 104 to automatically hook or automatically slide out.

[0115] The hook groove 104 is provided with a gentle arc surface 1041 for the limit hook 204 to move back and forth. The gentle arc surface 1041 is located on the upper outer side of the hook groove 104. The limit hook 204 slides into or away from the gentle arc surface 1041 to hook the hook groove 204 or to disengage from the hook groove 204.

[0116] When winding up a fire hose, if the thickness suddenly increases due to reasons such as folding of the fire hose, the sliding surface of the smooth arc surface 1041 and the hook of the limit hook can not only cope with the situation of fire hose folding, but also squeeze out water, avoid the jamming of fire hose during winding caused by the fixed distance between the upper and lower pressure rollers, and also avoid the problem of insufficient drainage of fire hose caused by the non-fixed distance between the upper pressure roller 3 and the lower pressure roller 4.

[0117] The hook groove 104 is equipped with a limiting hook guide slope 105, which is located at the sliding front end of the hook groove 104. The limiting hook guide slope 105 provides the limiting hook 204 to gradually open and slide down against the elastic force of the second spring 9 until it is locked in the hook groove 104.

[0118] The hook-and-receiver groove 104 is equipped with an adjusting component 11, which includes a second hook-and-receiver groove 1101 and an adjusting rod 1102. The second hook-and-receiver groove 1101 is fixedly installed on the upper end of the adjusting rod 1102 and is designed to be close to the hook-and-receiver groove 104. The groove of the second hook-and-receiver groove 1101 is similar to the groove of the hook-and-receiver groove 104. The adjusting rod 1102 is height-adjustably installed on the outside of the baffle 101 to adjust the height of the hook-and-receiver limit hook 204 of the second hook-and-receiver groove 1101, adjust the hook-and-receiver angle of the swing arm 2 and the baffle 101, and adjust the distance between the upper pressure roller 3 and the lower pressure roller 4 to adapt to fire hoses of different thicknesses.

[0119] In addition, in this invention, the design of the second hook receiving groove 1101 in the adjusting component 11, the setting of this position, is in conjunction with the fixed installation of the limiting hook 204 at both ends of the trigger rod 8, so that the limiting hook 204 can be a limiting hook of the same thickness, without the need to set the inner hook fastening part, and can be directly hooked on the second hook receiving groove 1101, reducing the processing difficulty of the limiting hook, reducing the material used by the limiting hook 204, and reducing the production cost.

[0120] The lower end of the adjusting rod 1102 is provided with an adjusting rod adjusting hole 1103, and the adjusting rod adjusting hole 1103 is provided with an adjusting inclined surface 1105. The adjusting inclined surface 1105 allows the adjusting screw 1104 to be locked at different height positions to adjust the height position of the adjusting rod 1102. The adjusting rod 1102 is attached to the outer wall of the baffle 101. The baffle 101 and the adjusting rod 1102 are respectively provided with dimensions. The baffle 101 is used as a main scale, and the adjusting rod 1102 is used as a vernier to precisely control the height position of the adjusting rod. The adjusting component 11 is also provided with a locking hook 13. One end of the locking hook 13 is rotatably mounted on the baffle 101, and the other end is provided with a groove for a locking limit hook 204. The locking limit hook 204 rotates to fix the gap between the upper pressure roller 3 and the lower pressure roller 4.

[0121] In this invention, the base 1 is provided with a guide slope 103 on the side that is offset from the pivot of the swing arm 2 for the fire hose connector to be held and slid; the guide slope 103 is provided with a front roller 106 at its lowest point.

[0122] The front roller 106 reduces the force consumed during subsequent fire hose winding, and also improves the operational stability and service life of the entire equipment. The combination of the front roller 106 and the guide slope 103 ensures that the fire hose joint will not shake due to winding on its way to the upper and lower pressure rollers, making it very stable. This reduces the weight of the lower pressure roller 4 and improves the stability of the drainage transmission structure of the present invention.

[0123] The first spring 5 is a tension spring, symmetrically arranged on both sides of the baffle 101, connecting the left swing arm 201 to one side baffle 101 and the right swing arm 202 to the other side baffle 101 respectively; the first spring 5 is a torsion spring, and the left swing arm 201 to one side baffle 101 and the right swing arm 202 to the other side baffle 101 are reset by installing a torsion spring at the pivot connection.

[0124] The lower pressure roller 4 has eccentric blocks 14 at both ends of its rotating shaft. The eccentric blocks are square, and the distance from the axis of the lower pressure roller 4 to each side of the eccentric block 14 is different. The eccentric blocks 14 are detachably installed on the base 1, and the installation position of the lower pressure roller 4 on the base 1 can be adjusted by rotating the eccentric blocks 14. By installing the eccentric blocks 14 in different directions, the installation position of the lower pressure roller 4 is adjusted, and the distance between the upper pressure roller 3 and the lower pressure roller 4 can be adjusted. This allows the labor-saving quick-winding fire hose truck for the same continuous, automatic drainage zone to be used with fire hoses of different thicknesses, expanding the applicability of the labor-saving quick-winding fire hose truck for the same continuous, automatic drainage zone and making it suitable for market promotion and application.

[0125] The fire hose trailer in the continuous, automatic drainage zoned labor-saving rapid retraction fire hose truck of the present invention includes a pull rod 18, a frame 20 and a wheel set 19; one end of the pull rod 18 is connected to the frame 20, and the other end is used as a handle for firefighters to pull.

[0126] The wheel assembly 19 is installed at the bottom of the frame 20, and the auxiliary tie rod 18 enables the fire hose trailer to move in any direction.

[0127] The frame 20 includes a frame beam 2001 and a frame support 2002. The upper end of the frame support 2002 supports the frame beam 2001. A roller 7 is detachably installed on the frame beam 2001. A wheel set 19 is installed on the lower end of the frame support 2002.

[0128] The frame beam 2001 is provided with an upper mounting section 2006 and a lower mounting section 2007 in the vertical direction. The upper mounting section 2006 can be detachably fixed with a tie rod 18, and the lower mounting section 2007 is hinged to the tie rod 18. The tie rod 18 can be folded and installed on the frame beam 2001.

[0129] This invention also includes a base bracket 28, which is shaped like a sieve for holding items, especially fire-fighting equipment. One end of the base bracket 28 has a through-hole 2801, connecting it to a frame 20 via a pin. A pull ring 29 and a steel wire 30 are connected to a pull pin 2804 at the lower end of the frame 20. The base bracket 28 has a first pull pin positioning hole 2802 and a second pull pin positioning hole 2803. The pull pin 2804 passes through the first pull pin positioning hole 2802 to position and unfold the base bracket 28 for holding items and serving as a support leg for a hose reel for parking. The pull pin passes through the second pull pin positioning hole 2803 and the mounting hole of the frame. The base bracket 28 can be folded up and stored against the frame. The hinged and positioning structures enable the rapid unfolding and folding of the base bracket for storage.

[0130] In this invention, the tie rod 18 is foldable and installed on the frame beam 2001, which improves the stability of the tie rod 18 in use, and at the same time realizes the quick folding and storage of the tie rod, reducing the space occupied by the fire hose trailer frame when it is resting.

[0131] The frame beam 2001 and the folding mounting arm 2003 are provided with a hinge locking device. The hinge locking device includes a latch 2009 on the frame beam 2001 and a hook 2010 on the folding mounting arm 2003 at the mating position. When the folding mounting arm 2003 is pressed down to the mating position, the hook 2010 presses into the latch 2009 to lock the folding mounting arm 2003 on the frame beam 2001.

[0132] The frame beam 2001 is U-shaped in the horizontal direction, and the fire hose reel 7 is installed at one end of the U-shaped opening of the frame beam 2001.

[0133] The upper installation section 2006 and the lower installation section 2007 of the frame beam are set on the U-shaped opening of the frame beam 2001 opposite to the frame beam.

[0134] The frame beam has mounting holes on the upper section 2006, and the tie rod 18 has matching mounting holes. The pull pin 24 is inserted into the tie rod 18 to fix it to the upper section 2006 of the frame beam. The frame beam has a protruding U-shaped piece 2008 at the lower part of the lower section 2007. The U-shaped piece 2008 is inserted into the folded tie rod 18 to fix it. The tie rod 18 includes left and right tie rod connecting rod mounting sections 1803 and a handle 1802 at the upper end that connects to the telescopic section 1804 of the tie rod connecting sections on both sides. The pull pin 24 is located at both ends and fixed to the connecting steel wire 25. The pull pin 24 at both ends is inserted into the mounting holes of the tie rod connecting rod mounting section 1803. By holding the handle 1802, the tie rod 18 is folded to fold and store the pull pin 24 and the connecting steel wire 25. The plastic sleeve 27 is used to protect firefighters from being injured by the steel wire.

[0135] The tie rod mounting section 1803 is provided with a pin 26 at the bottom position, and the tie rod telescopic section 1804 is provided with a mounting hole at the matching position. The pin 26 is inserted into the through hole at different height positions of the mounting hole to adjust the length of the tie rod.

[0136] A folding mounting arm 2003 is hinged to the ends of the frame beam 2001 on both sides of the U-shaped opening. The folding mounting arm 2003 has a pre-reserved mounting groove 2004 on the side of the frame beam 2001 facing the frame beam 2001. When the folding mounting arm 2003 flips down and presses onto the frame beam 2001, the fire hose reel 7 is detachably fixed on the frame beam 2001, which can prevent the fire hose reel 7 from falling off due to vibration and can safely and stably transport the fire hose to the place where fire fighting is needed.

[0137] The wheel assembly 19 is a climbing wheel, and the frame support 2002 is V-shaped, with the wheel assembly 19 installed at the lower end of the V and the frame beam 2001 installed at the upper end of the V. This allows firefighters to pull the fire hose trailer frame on both flat and sloping surfaces.

[0138] The pull rod 18 includes a pull rod mounting section 1803 and a pull rod telescopic section 1804. The pull rod mounting section 1803 is provided with through holes at different height positions, and the pull rod telescopic section 1804 is provided with mounting holes at matching positions. The pin 26 is inserted into the mounting holes at different height positions to adjust the length of the pull rod 18, making it suitable for towing fire hose reels of different heights and outer ring sizes.

[0139] The base bracket 28 is installed below the U-shaped opening end of the frame beam and below the side offset from the tie rod. This fully utilizes the empty space at the lower end of the frame 20. The double-layered base bracket 28 at the lower end of the upper frame beam improves space utilization and also facilitates the lifting height of the base bracket 28 when firefighters pull the tie rod, preventing items from falling out. The base bracket 28 has symmetrically arranged first pull pin positioning holes 2802 and second pull pin positioning holes 2803 on both sides. The pull pin 2804 is a symmetrically arranged ring-shaped locking pin on both sides, which works in conjunction with the first pull pin positioning holes 2802 and the second pull pin positioning holes 2803.

[0140] Symmetrical pull ring pins on both sides are connected to the pull ring 29 in the middle. Pulling the pull ring 29 releases the positioning of the bottom bracket 28.

[0141] The base bracket 28 of the present invention is provided with a pull ring 29 and symmetrical arrangement on both sides. By pulling the pull ring 29, the locking pins on both sides can be released to position the base bracket 28, making it easy to manually fold the base bracket and store it against the frame 20, thus minimizing the space occupied when not in use.

[0142] The above specific embodiments are used to explain and illustrate the present invention, and are only preferred embodiments of the present invention, not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made to the present invention within the spirit and scope of the claims shall fall within the protection scope of the present invention.

Claims

1. A labor-saving, rapid-rewinding fire hose truck with continuous, automatic drainage zoning, characterized in that: This includes fire hose trailers, drainage drive structures for hose reeling, and automatic zoned hose reeling structures. The fire hose trailer includes a tie rod, a frame, and a wheel assembly; one end of the tie rod is connected to the frame, and the other end is used as a handle for firefighters to pull; the wheel assembly is installed at the lower end of the frame, and an automatic partitioned winding structure is installed at the upper end; an auxiliary tie rod is installed at the upper end of the frame to enable the fire hose trailer to move in any direction. The drainage transmission structure for winding includes a base and a swing arm pivotally connected to the base on one side. The base and the swing arm are elastically connected by a first spring on the pivotal connection side. The base is provided with a lower pressure roller, and the swing arm is provided with an upper pressure roller. The swing arm is reset by the elastic rebound of the first spring and fixedly clamped to the base by a clamping structure. After the swing arm and the base are clamped, a space is reserved between the upper pressure roller and the lower pressure roller for the passage of the fire hose. The upper pressure roller and the lower pressure roller squeeze the fire hose to drain water. The clamping structure is provided on the side away from the pivotal connection between the swing arm and the base, and can automatically and repeatedly clamp the swing arm and the base. A trigger rod is installed on the outside of the upper pressure roller of the swing arm. The trigger rod is equipped with a trigger element. The inner side of the trigger element is fixedly installed on the trigger rod, and the outer side is a gentle arc surface to allow the fire hose connector to contact and rotate from different angles. The fire hose connector pushes the trigger element to rotate, and the rotation of the trigger element drives the trigger rod to rotate to release the clamping structure and push the swing arm to rotate. The clamping structure opens, and the swing arm rotates to open the opening between the base and the upper pressure roller, widening the gap between the upper and lower pressure rollers to allow the fire hose connector to pass through. After the fire hose connector passes through, the first spring rebounds and pulls the swing arm back. The clamping structure automatically clamps the swing arm to the base, so that the upper and lower pressure rollers squeeze and discharge the water in the fire hose. The automatic zoned winding structure includes a spool and a hub motor assembly, a motor, and a lead screw. The spool is axially divided into a winding zone and a knotting zone. The hub motor assembly drives the spool to rotate and wind up the fire hose from the drainage transmission structure. A trigger is set at the mating position of the swing arm and the base. When the fire hose joint passes through, the swing arm opens and the trigger on the base activates, which in turn triggers the motor to run. The motor drives the lead screw to rotate, causing the drainage transmission structure to move to the knotting zone to wind up the fire hose joint. After the fire hose joint passes through, when the swing arm closes with the base, the trigger is activated, and the motor and lead screw drive the drainage transmission structure to move to the winding zone to wind up the fire hose.

2. The labor-saving, rapid-rewinding fire hose truck with continuous, automatic drainage zoning as described in claim 1, characterized in that: The drainage transmission structure for winding is mounted on the frame via a connecting bracket, and the connecting bracket supports the lead screw parallel to the winding shaft. The frame includes frame beams and frame supports. The upper end of the frame supports supports the frame beams, and a reel is detachably mounted on the frame beams. A wheel assembly is mounted on the lower end of the frame supports. The frame beams are U-shaped in the horizontal direction, and the reel is installed at one end of the U-shaped opening of the frame beams. A folding mounting arm is hinged to both ends of the frame beam at the U-shaped opening. The folding mounting arm has a pre-reserved mounting groove on the side facing the frame beam. When the folding mounting arm flips down and presses against the frame beam, it detachably and securely fixes the reel to the frame beam. The reel includes a drum, a drum shaft, and a rotating wheel. The drum is rotatably mounted on the frame via the drum shaft, and the rotating wheel is fixed to both ends of the drum shaft. When the hub motor assembly drives the rotating wheel to rotate, it winds up the fire hose. The outer diameter of the reel is larger than that of the drum to prevent the fire hose or joint from detaching from the space where it is wound on the drum; The drum is provided with partition columns, and two or more partition columns are arranged radially. Space is reserved between each partition column for the fire hose to pass through. The partition columns are installed on the drum to divide the drum into a winding area and a fastening area. The base is provided with guide rail holes and lead screw holes. The guide rail is installed through the guide rail holes to slide the base, and the lead screw is installed through the lead screw holes to drive the drainage transmission structure for winding to move. The direction of movement is parallel to the axial direction of the winding shaft. The lead screw is installed in the lead screw holes to drive the base to slide. A mobile power supply is also provided, which is electrically connected to the hub motor assembly, the motor and the automatic control system to provide driving power for them. The mobile power supply is installed on the fire hose trailer.

3. The labor-saving, rapid-rewinding fire hose truck with continuous, automatic drainage zoning as described in claim 2, characterized in that: The hub motor assembly includes a hub motor and a transmission mechanism base. The hub motor is mounted on the transmission mechanism base and is externally connected to the lower end of the wheel. The hub motor rotates to drive the wheel to rotate and wind the fire hose. The hub motor assembly also includes a tension spring and a hinge connector. The hub motor's shaft is mounted on the hinge connector, which is pivotally mounted on the transmission mechanism base. The hub motor is pivotally connected to the transmission mechanism base via the hinge connector. The lower end of the tension spring is mounted on the transmission mechanism base, and the upper end is tensioned to support the hub motor. The hub motor elastically presses against and drives the wheel to rotate. And / or, the hub motor is equipped with a throttle to control the forward and reverse rotation and the rotation speed of the hub motor; And / or, both the hub motor and the wheel are made of high-friction round wheels, and the side of the wheel facing the hub motor is made of a flexible material; And / or, the rotating wheel is provided with a magnetic sensor at a matching position, and the frame is provided with a magnetic induction switch at a matching position. The magnetic induction switch detects the number of rotations of the rotating wheel and the reel by detecting the number of magnetic sensors, so as to calculate the length of the fire hose reel winding or unwinding. And / or, the frame beam and the folding mounting arm are provided with a hinge locking device, the hinge locking device includes a latch on the frame beam and a hook on the folding mounting arm at the mating position. When the folding mounting arm is pressed down to the mating position, the hook presses into the latch to lock the folding mounting arm on the frame beam. And / or, the frame beam is provided with two tie rods, the lower ends of which are installed on two support beams, and the upper ends of the tie rods are used as handles; And / or, the tie rods on the frame beam are telescopic; And / or, the wheel set is selected as a climbing wheel.

4. The labor-saving, rapid-rewinding fire hose truck with continuous, automatic drainage zoning as described in claim 1, characterized in that: The base includes two side baffles and a bottom plate that fixes the two side baffles. The shafts at both ends of the lower pressure roller are fixedly installed on the two side baffles respectively. The two side baffles are higher than the height of the lower pressure roller and form a U-shaped opening for the fire hose to pass through and limit its movement. The swing arm includes a left swing arm and a right swing arm. The bottom of the left and right swing arms is pivotally mounted on the outside of the baffle. The left and right swing arms fix the shafts at both ends of the upper pressure roller. The left and right swing arms are respectively fixed to the upper end of the upper pressure roller and the outer end of the trigger rod, so that when the fire hose interface passes through, the trigger element is triggered first, releasing the clamping structure and allowing the swing arm to rotate relative to the base to expand the distance between the upper and lower pressure rollers.

5. The labor-saving, rapid-rewinding fire hose truck with continuous, automatic drainage zoning as described in claim 4, characterized in that: The clamping structure includes a limiting hook, a hook groove, and a second spring; The trigger rod is rotatably mounted between the left and right swing arms, and limit hooks are fixedly mounted at both ends of the trigger rod. When the trigger rod rotates, it drives the limit hooks to rotate. The base is provided with a hook groove at the matching position. When the limit hook is fastened in the hook groove, it hooks the swing arm on the base. When the trigger rod rotates, it drives the limit hook to rotate away from the hook groove, which drives the swing arm to release the hook from the base. The limit hook is connected to the swing arm through the second spring and is reset to the hook groove by the second spring. The hook portion of the limiting hook is a sliding surface; Alternatively, the hook groove is provided with a gentle arc surface that allows the limiting hook to move back and forth. The gentle arc surface is located on the upper outer side of the hook groove, and the limiting hook slides into or out of the gentle arc surface to hook into or out of the hook groove.

6. The labor-saving, rapid-rewinding fire hose truck with continuous, automatic drainage zoning as described in claim 5, characterized in that: The hook-and-container groove is equipped with an adjustment component, which includes a second hook-and-container groove and an adjustment rod. The second hook-and-container groove is fixedly installed on the upper end of the adjustment rod and is designed to be close to the hook-and-container groove. The adjustment rod is installed on the outside of the baffle in an adjustable height to adjust the height of the hook limit hook of the second hook-and-container groove, adjust the hook angle of the swing arm and the baffle, and adjust the distance between the upper pressure roller and the lower pressure roller to adapt to fire hoses of different thicknesses.

7. The labor-saving, rapid-rewinding fire hose truck with continuous, automatic drainage zoning as described in claim 6, characterized in that: The lower end of the adjusting rod is provided with an adjusting rod adjusting hole, and the adjusting rod adjusting hole is provided with an adjusting slope. The adjusting slope allows the adjusting screw to be locked at different height positions to adjust the height position of the adjusting rod. Alternatively, the adjusting rod is placed against the outer wall of the baffle, and dimensions are set on both the baffle and the adjusting rod. The baffle is used as a main scale, and the adjusting rod is used as a vernier to precisely control the height position of the adjusting rod. Alternatively, the adjusting component may also be provided with a locking hook, one end of which is rotatably mounted on the baffle, and the other end of which is provided with a groove for a locking limit hook. The locking limit hook rotates to fix the gap between the upper pressure roller and the lower pressure roller.

8. The labor-saving, rapid-rewinding fire hose truck with continuous, automatic drainage zoning as described in claim 5, characterized in that: The base is provided with a guide ramp on the side offset from the pivot of the swing arm for the fire hose connector to slide and support; The guide ramp is equipped with a front roller at its lowest point.

9. The labor-saving, rapid-rewinding fire hose truck with continuous, automatic drainage zoning as described in claim 4, characterized in that: The first spring is a tension spring, symmetrically arranged on both sides of the baffle, connecting the left swing arm to one side baffle and the right swing arm to the other side baffle respectively; Alternatively, the first spring may be a torsion spring, and the left swing arm and one side baffle, as well as the right swing arm and the other side baffle, may be reset by installing a torsion spring at the pivot connection.

10. The labor-saving, rapid-rewinding fire hose truck with continuous, automatic drainage zoning as described in claim 1, characterized in that: The lower pressure roller has eccentric blocks at both ends of its rotating shaft. The eccentric blocks are square, and the distance from the axis of the lower pressure roller to each side of the eccentric block is different. The eccentric block can be detachably installed on the base. Rotating the eccentric block adjusts the installation position of the lower pressure roller on the base.

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