Folding fire hose vehicle

Abstract

The utility model discloses a folding fire hose vehicle in the technical field of fire hose vehicles, which comprises a movable support body and a retainer, the movable support body comprises two groups of supports, two groups of folding ladder wheel mechanisms and two groups of folding support rods, the two groups of supports are respectively a left support and a right support, and the two groups of supports are respectively a left support and a right support. Baffles are installed on the side walls, away from each other, of the two supports. A pressing rod structure and a belt separator structure are connected to the movable supporting body, a water belt frame is arranged at the upper end of the inner side of the movable supporting body, a hollow speed reducer assembly for driving the water belt frame to rotate is arranged on the side of the movable supporting body, and a controller and a battery are arranged at the bottom of the inner side of the movable supporting body. The device can be conveniently stored in a fire fighting truck and a miniature fire station, can be quickly unfolded for rescue during rescue, and can be rolled, folded, stored and stored in the original place after rescue is finished; and a common water hose winding wheel is replaced by the water hose frame, so that the water hose is convenient to store.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire hose vehicles, and particularly relates to a folding fire hose vehicle. Background Technique

[0002] Many existing fire trucks and mini fire stations were built earlier, with aging facilities and are difficult to meet the storage and operation requirements of modern fire fighting equipment. The designs of many fire trucks and mini fire stations do not fully consider the storage of large equipment such as fire hose vehicles, resulting in insufficient space to accommodate all necessary fire fighting equipment.

[0003] Fire trucks and mini fire stations, due to their small size and flexibility, have become effective tools for solving narrow passage problems. However, in order to meet fire fighting needs, fire trucks and mini fire stations should be equipped with sufficient fire fighting equipment to deal with incipient fires. Fire trucks and mini fire stations have narrow storage spaces, especially when the fire hose is wound up, the depth or thickness is too large, resulting in difficult storage, and it is necessary to optimize the storage of equipment to improve space utilization efficiency. In addition, due to space limitations, there are deficiencies in the quick removal, use, and storage of fire fighting equipment, which may result in a loss of precious rescue time in case of an emergency. The existence of these problems not only affects the rapid deployment of fire fighting equipment but also has an impact on the work efficiency and safety of firefighters.

[0004] Therefore, in order to solve the problem of narrow storage space for the fire hose winding device, it is an urgent technical problem for those skilled in the art to provide a fully foldable and quickly deployable fire hose vehicle. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the above problems existing in the prior art, and provide a folding fire hose vehicle, which is convenient for storage in fire trucks and mini fire stations, can be quickly deployed for rescue during rescue, and can be wound up, folded, and stored in place after the rescue; the commonly used water hose winding wheel is replaced with a water hose rack for easy storage.

[0006] To achieve the above technical purpose and reach the above technical effect, the utility model is realized through the following technical solutions:

[0007] A folding fire hose vehicle includes a movable support and a holding frame. The movable support includes two groups of brackets, two groups of folding ladder wheels mechanisms, and two groups of folding support rods. The two groups of brackets are the left bracket and the right bracket respectively. Baffles are installed on the side walls of the two groups of brackets away from each other; a pressure rod structure and a belt separator structure are connected to the movable support. A water hose rack is arranged at the upper end inside the movable support, a hollow speed reducer assembly for driving the water hose rack to rotate is arranged beside the movable support, and a controller and a battery are arranged at the bottom inside the movable support.

[0008] Preferably, auxiliary wheels are provided at both ends of the bottom of the right bracket and both ends of the bottom of the left bracket.

[0009] Based on the above technical features, it is convenient to move the entire device on the ground.

[0010] Preferably, the folding ladder wheel mechanism includes a ladder wheel frame, a positioning wheel frame, and a first swing arm of the wheel frame. Three sets of ladder wheels are provided on the ladder wheel frame. The positioning wheel frame is installed at the bottom of the bracket. A second swing arm of the wheel frame is provided on one side of the ladder wheel frame. One end of the first swing arm of the wheel frame is rotatably connected to the positioning wheel frame through a first rotating shaft. A first torsion spring is provided on the first rotating shaft. The other end of the first swing arm of the wheel frame is rotatably connected to the second swing arm of the wheel frame through a second rotating shaft. A second torsion spring is provided on the second rotating shaft. A wheel frame groove is provided on the positioning wheel frame and is in rotational cooperation with the first swing arm of the wheel frame.

[0011] Based on the above technical features, it is convenient for the first swing arm of the wheel frame to extend outwards on the positioning wheel frame, and further move the ladder wheel from the bottom position of the device to the outside of the device.

[0012] Preferably, a stable connecting rod is fixedly connected between the two brackets. The two folding support rods are located at the bottom of the stable connecting rod. The two ends of the two folding support rods away from each other are rotatably connected to the stable connecting rod. A folding support rod pin is inserted into the top of the stable connecting rod. A folding support rod card slot is provided between the two folding support rods and is in cooperation with the folding support rod pin. A folding support rod tension spring is connected between the end of the folding support rod away from the folding support rod card slot and the bottom of the corresponding bracket.

[0013] Based on the above technical features, when folding and retracting the folding support rod, the folding support rod tension spring facilitates the elastic retraction of the folding support rod to the bottom of the stable connecting rod.

[0014] Preferably, the cage is the first cage or the second cage. Cage grooves are provided at both ends of the cage. Cage pins are respectively provided at both ends of the cage and are in cooperation with the cage grooves. A first cage hole is provided at the rear end of the top of the baffle and is in cooperation with the cage pin.

[0015] Based on the above technical features, the cage is erected on the baffle, and the baffle is inserted into the cage groove on the cage. Then, the pin in the cage pin is inserted into the first cage hole, so as to realize the erection and fixation of the cage on the baffle. On the contrary, it is convenient to remove the cage.

[0016] Preferably, adjustable pressure blocks are provided at the bottom ends of the left and right inner side walls of the second cage.

[0017] Based on the above technical features, when the water hose rack is used, the second steps on both sides of the water hose rack are pressed against by the adjustable pressure blocks to fix the water hose rack on the foldable fire hose truck.

[0018] Preferably, the water hose rack includes a water hose joint fixing plate, a Velcro belt, two keels and a plurality of ribs, one end of the Velcro belt is connected to the water hose joint fixing plate, a plurality of ribs are arranged at equal intervals on the two keels along the length direction, flexible blocks are provided on the front and rear sides of the ribs, the middle position between any two adjacent ribs is the water hose joint placement area, the left and right ends of the water hose rack are connected to the second steps, the ends of the two groups of second steps away from each other are connected to the first step, and the end of the first step away from the second step is provided with a slot hole matching the output end of the hollow reducer assembly.

[0019] Based on the above technical features, the installation connection between the hollow reducer assembly and the hose rack is achieved by inserting the sliding shaft protrusion into the slot.

[0020] Preferably, the right bracket and the left bracket are rotatably connected to the side where they are close to each other with a pressure rod, and the pressure rod structure includes a handle bar, which is connected between the two pressure rods, and the handle bar is provided with a turning handle, and the turning handle is provided with a power button and a forward and reverse button. The pressure rod is provided with a second bearing and a pressure rod buckle at one end away from the handle bar, and a limited axis hole is provided on the pressure rod buckle. The two groups of brackets are connected to the side away from each other with a second pin, and the second pin includes a second pin shaft.

[0021] Based on the above technical features, when the pressure rod structure flips backward to a high position to facilitate the operator to grab the handle, the position of the rotated pressure rod structure is fixed by inserting the second pin shaft in the second pin into the limiting shaft hole.

[0022] Preferably, the belt splitter structure includes a stepper motor, a belt splitter and two belt splitter swing arms, one is a right swing arm of the belt splitter, and the other is a left swing arm of the belt splitter, the top end of the right swing arm of the belt splitter is rotatably connected to the outside of the baffle on the right bracket, and the top end of the left swing arm of the belt splitter is rotatably connected to the outside of the baffle on the left bracket, the stepper motor is installed on the outer side wall of the right swing arm of the belt splitter, the belt splitter includes two groups of belt splitter rotating arms, and magnets are installed on one side wall of the two groups of belt splitter rotating arms that are away from each other, and magnetic induction switches that match the magnets are installed on the side where the two belt splitter swing arms are close to each other and the position near the magnet in the belt splitter;

[0023] A first pin is inserted into the upper end of the side wall of the two belt splitter swing arms away from each other. The first pin includes a first pin shaft. The outer side wall of the baffle is respectively provided with a second retainer hole and a third retainer hole which are inserted and matched with the first pin shaft.

[0024] Based on the above technical features, when the structure of the tape divider is rotated upward, after the rotation is completed, the first pin shaft in the first pin inserted on the swing arm of the tape divider is inserted into the second cage hole to realize the limit fixation of the tape divider structure, facilitating the winding of the fire hose.

[0025] Preferably, two displacement slide rods are fixedly connected to the bottom end between the two swing arms of the tape divider, and a displacement screw rod is rotatably connected to the bottom end between the two swing arms of the tape divider. The displacement screw rod is located between the two displacement slide rods. The tape divider is threadedly connected to the displacement screw rod and slidably connected to the two displacement slide rods. The power output end of the stepper motor is connected to a main bevel gear, and one end of the displacement screw rod extending out of the outer side wall of the right swing arm of the tape divider is connected to a driven bevel gear, and the main bevel gear meshes with the driven bevel gear.

[0026] Based on the above technical features, through the meshing transmission of the main bevel gear and the driven bevel gear, it is convenient for the stepper motor to drive the displacement screw rod to rotate.

[0027] In summary, the present utility model includes at least one of the following beneficial effects: Through the cooperation of the movable support body, the pressure rod structure, the tape divider structure and the hose rack, the present utility model facilitates the winding, storage and quick deployment of the fire hose, so as to facilitate storage in the fire truck and the mini fire station, and can be quickly deployed for rescue during rescue, and wound up, folded and stored in place after the rescue; replacing the commonly used hose winding wheel with a hose rack is convenient for storage.

[0028] A folding fire hose vehicle of the present utility model introduces components such as a movable support body, a pressure rod structure, a tape divider structure and a hose rack, realizing the efficient winding and storage of the fire hose. Among them, the movable support body allows the hose rack to move flexibly in different positions, ensuring the quick access and storage of the hose, and is easy to carry. At the same time, the pressure rod structure provides a simple and effective method to control the release and recovery of the hose, reducing the operation complexity and solving the space and operation limitations encountered in the storage and deployment of traditional fire fighting equipment; the tape divider structure of the present utility model automatically identifies the end point of the hose winding during the hose retraction process, ensuring that the hose is neatly stored on the hose rack. The hose connector is stored inside the hose rack and inside the hose winding space. The modular storage design of the fire hose and the fire hose connector realizes the precise positioning and efficient storage of the fire hose, while achieving compact storage, making the most of the space, solving the problem of narrow storage space, not only improving the use efficiency and emergency response speed of the fire fighting equipment, but also ensuring the operation safety and convenience of the fire fighting personnel, and reducing the problem of the expansion of the storage space caused by the chaotic winding of the hose, resulting in the limitation of the storage position, and avoiding the potential safety risks caused by the inconvenient access to the storage position.

[0029] A folding fire hose cart of the present utility model has good mechanical strength in the movable support body, ensuring the stability and durability of the overall structure. The hose rack equipped inside it is an adjustable structure, which can adjust the storage space according to the size and thickness of the fire hose, so as to adapt to fire hoses of different specifications. Through the inner side of its upper end, a hose rack is equipped. The fire hose is placed and sorted in the hose rack, and a hollow speed reducer assembly is arranged beside it, which is responsible for driving the rotation of the hose rack to realize the automatic winding and unwinding of the fire hose, thus solving the problem of difficult storage caused by the excessive depth or thickness of the fire hose after being wound. At the same time, a controller and a battery are configured at the bottom inside the support body, serving as the control center and power supply unit of the device respectively, ensuring the efficient operation of the device and improving the storage efficiency and use convenience of the fire hose.

[0030] A folding fire hose cart of the present utility model can be compactly stored when not in use, and is fully folded and stored on the movable support body, achieving high integration. These folds can realize rapid deployment and storage, saving space and improving portability. In case of an emergency, it can be quickly deployed and put into use, enabling firefighters to respond to emergencies such as fires efficiently and improving the rescue efficiency. It has great application prospects in fire fighting applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Structural schematic diagram of the state before the fire hose of the present utility model is pulled out Figure 1 ;

[0032] Figure 2 Structural schematic diagram of the state before the fire hose of the present utility model is pulled out Figure 2 ;

[0033] Figure 3 Structural schematic diagram when the fire hose of the present utility model is pulled out;

[0034] Figure 4 Structural schematic diagram when the fire hose of the present utility model is wound up;

[0035] Figure 5 Structural schematic diagram of the storage state without the hose rack and the use of the first retainer of the present utility model;

[0036] Figure 6 Structural schematic diagram of the storage state with the hose rack and the use of the second retainer of the present utility model;

[0037] Figure 7 Structural schematic diagram of the present utility model with the hose rack, the folding ladder wheel mechanism, the folding support rod in the unfolded state and the use of the second retainer;

[0038] Figure 8 Structural schematic diagram of the bottom of the storage state with the hose rack of the present utility model;

[0039] Figure 9 is the schematic diagram of the bottom structure of the present utility model Figure 5 ;

[0040] Figure 10 is the schematic diagram of the structure of the second cage of the present utility model

[0041] Figure 11 is the schematic diagram of the structure of the first cage of the present utility model

[0042] Figure 12 is the schematic diagram of the folded ladder wheel mechanism of the present utility model in the retracted state Figure 1 ;

[0043] Figure 13 is the schematic diagram of the folded ladder wheel mechanism of the present utility model in the retracted state Figure 2 ;

[0044] Figure 14 is the schematic diagram of the folded ladder wheel mechanism of the present utility model in the deployed state Figure 1 ;

[0045] Figure 15 is the schematic diagram of the folded ladder wheel mechanism of the present utility model in the deployed state Figure 2 ;

[0046] Figure 16 is the exploded structure schematic diagram of the hollow speed reducer assembly of the present utility model

[0047] Figure 17 is the schematic diagram of the structure of the pressure bar of the present utility model

[0048] Figure 18 is the schematic diagram of the connection state of the pressure bar structure of the present utility model with the right bracket and the left bracket

[0049] Figure 19 is the schematic diagram of the connection state of a group of pressure bars in the pressure bar structure of the present utility model with the right bracket

[0050] Figure 20 is the schematic diagram of the structure of the right bracket of the present utility model

[0051] Figure 21 is the schematic diagram of the structure of the belt divider of the present utility model

[0052] Figure 22 is the schematic diagram of the connection state of the belt divider structure of the present utility model with the right bracket and the left bracket

[0053] Figure 23 is the schematic diagram of the connection structure of the baffle with the right bracket of the present utility model

[0054] Figure 24 Schematic structural diagram when the magic tape tie on the hose rack of the present utility model fastens the fire hose connector;

[0055] Figure 25 Schematic structural diagram of the hose rack of the present utility model;

[0056] Figure 26 Schematic diagram of the connection state between the hollow speed reducer assembly and the body mounting plate of the present utility model;

[0057] Figure 27 Schematic diagram of the working state of the hollow speed reducer assembly of the present utility model Figure 1 ;

[0058] Figure 28 Schematic diagram of the working state of the hollow speed reducer assembly of the present utility model Figure 2 ;

[0059] Figure 29 Of the present utility model Figure 28 Schematic diagram of the sectional structural state of a partial position;

[0060] Figure 30 Of the present utility model Figure 27 Front view of the sectional structural state of a partial position;

[0061] In the drawings, the list of components represented by each reference numeral is as follows:

[0062] 1 - Right support, 101 - Positioning port, 102 - First bearing, 103 - Second pin, 1031 - Second pin shaft, 104 - First mounting hole, 1041 - Second mounting hole, 105 - Baffle, 1051 - First cage hole, 1052 - Second cage hole, 1053 - Third cage hole, 106 - Auxiliary wheel, 107 - Stable connecting rod,

[0063] 2 - Left support, 3 - Folding ladder wheel mechanism, 301 - Positioning wheel frame, 302 - First swing arm of the wheel frame, 303 - Second swing arm of the wheel frame, 304 - First torsion spring, 305 - Second torsion spring, 306 - Ladder wheel, 3011 - Wheel frame groove,

[0064] 4 - Folding support rod, 401 - Folding support rod pin, 402 - Folding support rod tension spring, 403 - Folding support rod card slot,

[0065] 5 - Cage, 501 - First cage, 502 - Second cage, 5021 - Cage groove, 5022 - Adjustable pressure block, 5023 - Cage pin,

[0066] 6 - Hose rack, 601 - First step, 602 - Second step, 603 - Slot hole, 604 - Flexible stop, 605 - Keel, 606 - Rib, 607 - Hose joint fixing plate, 608 - Velcro strap, 609 - Hose joint placement area

[0067] 7 - Press bar structure, 701 - Rotating handle, 7011 - Power button, 7012 - Forward and reverse button, 702 - Second bearing, 703 - Press bar buckle, 7031 - Limit shaft hole, 704 - Press bar mounting hole, 705 - Press bar, 706 - Handle bar

[0068] 8 - Belt separator structure, 801 - First pin, 8011 - First pin shaft, 802 - Belt separator swing arm mounting hole, 803 - Stepper motor, 8031 - Main bevel gear, 8032 - Driven bevel gear, 804 - Belt separator, 8041 - Belt separator rotating arm, 8042 - Magnet, 805 - Right swing arm of belt separator, 806 - Left swing arm of belt separator, 807 - Magnetic induction switch, 808 - Displacement screw, 809 - Displacement slide bar

[0069] 9 - Controller, 10 - Battery

[0070] 11 - Hollow reducer assembly, 1101 - Sliding shaft, 1102 Third pin, 1103 - Sliding shaft protrusion, 1104 - Sliding shaft key, 1105 - Sliding shaft limit groove, 1106 - Compression spring, 1107 - Sliding shaft stop, 1108 - Sliding shaft limit block, 1109 - Reducer hollow shaft, 1110 - Hollow reducer, 12 - Movable support, 13 - Machine body mounting plate Detailed implementation mode

[0071] The following combines the attached Figures 1 - 30 to further elaborate on the present utility model in detail

[0072] Example 1, referring to Figures 1 - 11 and Figure 22 A folding fire hose cart provided by the present utility model includes a movable support 12 and a holder 5. Both ends of the holder 5 are provided with holder slots 5021, and holder pins 5023 that cooperate with the holder slots 5021 are respectively provided at both ends of the holder 5

[0073] The movable support 12 includes two groups of brackets, two groups of folding ladder wheel mechanisms 3 and two groups of folding support rods 4. The two groups of brackets are the left bracket 2 and the right bracket 1 respectively. Baffles 105 are installed on the side walls of the two groups of brackets away from each other. A first retainer hole 1051 matching with the retainer pin 5023 is opened at the rear end of the top of the baffle 105, which is convenient for the retainer 5 to be installed on the baffle 105; auxiliary wheels 106 are arranged at both ends of the bottom of the right bracket 1 and both ends of the bottom of the left bracket 2, which is convenient for the whole device to move on the ground;

[0074] A pressure rod structure 7 and a belt divider structure 8 are connected to the movable support 12. A water hose rack 6 is arranged at the upper end inside the movable support 12. A hollow speed reducer assembly 11 for driving the water hose rack 6 to rotate is arranged beside the movable support 12. A controller 9 and a battery 10 are arranged at the bottom inside the movable support 12.

[0075] See Figure 8 、 Figures 12 - 15 For, the folding ladder wheel mechanism 3 includes a ladder wheel frame, a positioning wheel frame 301 and a first swing arm 302 of the wheel frame. Three ladder wheels 306 are arranged on the ladder wheel frame. The positioning wheel frame 301 is installed at the middle position near the bottom of the bracket. A second swing arm 303 of the wheel frame is arranged on one side of the ladder wheel frame. One end of the first swing arm 302 of the wheel frame is rotatably connected to the positioning wheel frame 301 through a first rotating shaft. A first torsion spring 304 is arranged on the first rotating shaft. The other end of the first swing arm 302 of the wheel frame is rotatably connected to the second swing arm 303 of the wheel frame through a second rotating shaft. A second torsion spring 305 is arranged on the second rotating shaft. A wheel frame groove 3011 matching with the rotation of the first swing arm 302 of the wheel frame is opened on the positioning wheel frame 301, which is convenient for the first swing arm 302 of the wheel frame to extend outwards on the positioning wheel frame 301, further moving the ladder wheel 306 from the bottom position of the device to the outside of the device, and limiting the first swing arm 302 of the wheel frame in the wheel frame groove 3011.

[0076] See Figure 4 and Figure 8, a stable connecting rod 107 is fixedly connected between two groups of brackets. Two groups of folding support rods 4 are located at the bottom of the stable connecting rod 107. One end of each of the two groups of folding support rods 4 away from each other is rotatably connected to the stable connecting rod 107. A folding support rod pin 401 is inserted into the top of the stable connecting rod 107. A folding support rod slot 403 matching the folding support rod pin 401 is provided between the two groups of folding support rods 4. A folding support rod tension spring 402 is connected between one end of the folding support rod 4 away from the folding support rod slot 403 and the bottom of the corresponding bracket. When using the folding support rod 4, the folding support rod 4 is rotated forward and moved out and opened from the bottom of the stable connecting rod 107 to stably support the device on the ground; when not in use, the folding support rod 4 is folded and retracted, and then the pin shaft in the folding support rod pin 401 is inserted into the folding support rod slot 403 between the two folding support rods 4 to lock the two folding support rods 4 at the bottom of the stable connecting rod 107. The folding support rod tension spring 402 facilitates the elastic release of the two folding support rods 4 to the support position after the pin shaft in the folding support rod pin 401 is retracted when the folding support rod 4 is unfolded after being retracted.

[0077] See Figure 16 , Figure 26 , Figure 27 , Figure 28 , Figure 29 and Figure 30 , the hollow reducer assembly 11 includes a hollow reducer 1110 with a reducer hollow shaft 1109. A sliding shaft stopper 1107 is installed on the outside of the hollow reducer 1110. A third pin 1102 is provided at the bottom end of the sliding shaft stopper 1107. A sliding shaft 1101 is slidably inserted into the reducer hollow shaft 1109. One end of the sliding shaft 1101 that movably penetrates the outer side wall of the sliding shaft stopper 1107 is fixedly connected with a sliding shaft limit block 1108; the other end of the sliding shaft 1101 is connected with a sliding shaft protrusion 1103. The sliding shaft stopper 1107 is located on the side of the reducer hollow shaft 1109 away from the sliding shaft protrusion 1103. A sliding shaft limit groove 1105 matching the third pin 1102 is provided on the outer wall of one end of the sliding shaft 1101 away from the sliding shaft protrusion 1103. A compression spring 1106 is sleeved on the sliding shaft 1101. The compression spring 1106 is located in the reducer hollow shaft 1109, closely attached to the sliding shaft stopper 1107 on one side and closely attached to the sliding shaft 1101 on the other side to facilitate the compression of the compression spring 1106; a sliding shaft key 1104 is inlaid and installed on the outer side of the sliding shaft 1101 close to the sliding shaft protrusion 1103 to cooperate with the key groove on the reducer hollow shaft 1109 for transmission; a machine body mounting plate 13 is fixedly installed on the outer side wall of a group of baffles 105 connected to the right bracket 1. The hollow reducer assembly 11 is installed on the outer side wall of the machine body mounting plate 13 to facilitate the installation and fixation of the hollow reducer assembly 11.

[0078] See Figure 24and Figure 25 The hose rack 6 includes a hose joint fixing plate 607, a Velcro strap 608, two keels 605 and a plurality of ribs 606. One end of the Velcro strap 608 is connected to the hose joint fixing plate 607. After the fire hose is wound, the hose joint fixing plate 607 is fixed to the fire hose joint, and then the other end of the Velcro strap 608 connected to the hose joint fixing plate 607 is tied to the rib 606, so as to realize the end fixing of the wound fire hose and prevent it from loosening. The plurality of ribs 606 are arranged at equal intervals along the length direction on the two keels 605. Flexible stoppers 604 are provided on both the front and rear sides of the rib 606. The middle position between any two adjacent ribs 606 is a hose joint placement area 609. Second steps 602 are connected to both the left and right ends of the hose rack 6. First steps 601 are connected to the mutually remote ends of the two groups of second steps 602. A slot hole 603 that matches the output end of the hollow speed reducer assembly 11 (i.e., the sliding shaft protrusion 1103) is provided at the end of the first step 601 remote from the second step 602. The installation connection between the hollow speed reducer assembly 11 and the hose rack 6 is realized by inserting the sliding shaft protrusion 1103 into the slot hole 603.

[0079] See Figure 20 and Figure 22 See and, positioning ports 101 that match the first steps 601 are provided at the tops of the two groups of brackets, and the positioning ports 101 extend to the outer side wall of the baffle 105. The first steps 601 on the hose rack 6 are placed in the positioning ports 101, so as to realize the installation of the hose rack 6 between the two groups of brackets. Grooves are also provided on the mutually remote side walls of the two groups of brackets, and three first bearings 102 that match the first steps 601 are installed in the grooves. When the hollow speed reducer assembly 11 drives the first step 601 to rotate, in order to avoid rotational blockage, the first step 601 is supported by the three first bearings 102 to cooperate with the second bearing 702 to enable smooth rotation for use.

[0080] See Figure 17 、 Figure 18 、 Figure 19 and Figure 20, on the sides of the right bracket 1 and the left bracket 2 that are close to each other, there are rotatably connected pressure bars 705. The pressure bar structure 7 includes a handle bar 706, and the handle bar 706 is connected between the two pressure bars 705. A turning handle 701 is arranged on the handle bar 706, and a power button 7011 and a forward and reverse button 7012 are arranged on the turning handle 701. At the end of the pressure bar 705 away from the handle bar 706, there is a second bearing 702 and a pressure bar buckle 703. A limit shaft hole 7031 is opened on the pressure bar buckle 703, and a pressure bar mounting hole 704 is opened at the end of the pressure bar 705 away from the handle bar 706. First mounting holes 104 are opened on both groups of brackets, and second pins 103 are inserted on the sides of the two groups of brackets that are away from each other. The second pin 103 includes a second pin shaft 1031. The pressure bar 705 is installed in the pressure bar mounting hole 704 and the first mounting hole 104 through a rotating shaft, realizing the rotational connection of the pressure bar 705 on the bracket. When the pressure bar structure 7 is flipped backward to a high position for convenient operation personnel to grab the handle bar 706, by inserting the second pin shaft 1031 in the second pin 103 into the limit shaft hole 7031, the position fixation of the rotated pressure bar structure 7 is realized.

[0081] The tape separator structure 8 includes a stepper motor 803, a tape separator 804 and two tape separator swing arms, one is the tape separator right swing arm 805, and the other is the tape separator left swing arm 806. The controller 9 is electrically connected to the stepper motor 803 for output. The top end of the tape separator right swing arm 805 is rotatably connected to the outside of the baffle 105 on the right bracket 1, and the top end of the tape separator left swing arm 806 is rotatably connected to the outside of the baffle 105 on the left bracket 2. The stepper motor 803 is installed on the outer side wall of the tape separator right swing arm 805. The tape separator 804 includes two groups of tape separator rotating arms 8041. Magnets 8042 are installed on the side walls of the two groups of tape separator rotating arms 8041 that are away from each other. Magneto - inductive switches 807 that cooperate with the magnets 8042 are installed on the sides of the two tape separator swing arms that are close to each other; Magneto - inductive switches 807 that cooperate with the magnets 8042 are also installed inside the tape separator 804 near the positions of the magnets 8042 on the left and right groups of tape separator rotating arms 8041. This magneto - inductive switch 807 is connected to a wireless transmitter and is in signal connection with the wireless receiver set in the controller 9;

[0082] There are two displacement slide rods 809 fixedly connected to the bottom ends between the two belt divider swing arms. There is a displacement screw rod 808 rotatably connected to the bottom ends between the two belt divider swing arms. The displacement screw rod 808 is located between the two displacement slide rods 809. The belt divider 804 is threadedly connected to the displacement screw rod 808 and slidably connected to the two displacement slide rods 809. The power output end of the stepper motor 803 is connected to a main bevel gear 8031. One end of the displacement screw rod 808 extending out of the outer side wall of the right swing arm 805 of the belt divider is connected to a driven bevel gear 8032. The main bevel gear 8031 meshes with the driven bevel gear 8032. When the stepper motor 803 operates, it drives the main bevel gear 8031 to rotate. Through the meshing transmission between the main bevel gear 8031 and the driven bevel gear 8032, it drives the displacement screw rod 808 to rotate, thereby driving the belt divider 804 to move on the two displacement slide rods 809.

[0083] At the top ends of the two belt divider swing arms, there are belt divider swing arm mounting holes 802 respectively. At the upper ends of the outer side walls of the two belt divider swing arms away from each other, there is a first pin 801 inserted respectively. The first pin 801 includes a first pin shaft 8011. On the outer side walls of the baffle 105, there are respectively a second cage hole 1052 and a third cage hole 1053 which are inserted and matched with the first pin shaft 8011. On the outer side walls of the two groups of baffles 105 away from each other, there are second mounting holes 1041 which are rotationally matched with the belt divider swing arms. The belt divider swing arms are installed in the belt divider swing arm mounting holes 802 and the second mounting holes 1041 through a rotating shaft, realizing the rotational connection of the belt divider swing arms on the baffle 105. When the belt divider structure 8 is not rotated upward, insert the first pin shaft 8011 in the first pin 801 into the third cage hole 1053 to realize the limit fixation of the belt divider structure 8 at the low position. When the belt divider structure 8 is rotated upward (rotated to the position as shown in Figure 4 ), after the rotation is completed, insert the first pin shaft 8011 in the first pin 801 inserted on the belt divider swing arm into the second cage hole 1052 to realize the limit fixation of the belt divider structure 8, facilitating the winding of the fire hose.

[0084] Embodiment 2, referring to Figure 5 、 Figure 9 、 Figure 11 , based on the same concept as the above Embodiment 1, this folding fire hose cart: The cage 5 is the first cage 501. The number of cage grooves 5021 on the first cage 501 is 2, with 1 at each end; the number of cage pins 5023 on the first cage 501 is 2, with 1 at each end. Mount the first cage 501 on the baffle 105, and make the baffle 105 inserted into the cage grooves 5021 on the first cage 501. Then insert the pin shaft in the cage pin 5023 into the first cage hole 1051, thereby realizing the erection and fixation of the first cage 501 on the baffle 105, and vice versa, facilitating the removal of the first cage 501.

[0085] Embodiment 3. Refer to Figure 6 , Figure 7 , Figure 10 . Based on the same concept as in the above-mentioned Embodiment 1 and Embodiment 2, for the folding fire hose cart, the retainer 5 is the second retainer 502. The number of retainer grooves 5021 on the second retainer 502 is four, with 2 on each side. The number of retainer pins 5023 on the second retainer 502 is four, with 2 on each side. Adjustable pressure blocks 5022 are provided at the bottom ends of the left and right inner side walls of the second retainer 502. The second retainer 502 is erected on the baffle 105, and the baffle 105 is inserted into the retainer grooves 5021 on the second retainer 502. Then, the pin shafts in the retainer pins 5023 are inserted into the first retainer holes 1051, thereby realizing the erection and fixation of the second retainer 502 on the baffle 105. Conversely, it is convenient to remove the second retainer 502.

[0086] Working principle:

[0087] In the storage state, the degree of freedom of the folding ladder wheel mechanism 3 is restricted by the gravity of the folding fire hose cart, and the degree of freedom of the folding support rod 4 is restricted by the inner wall of the fire truck or the mini fire station. During use, the first retainer 501 is lifted upwards to separate the folding fire hose cart from the fire truck or the mini fire station. Under the action of the first torsion spring 304 and the second torsion spring 305, the first swing arm 302 of the wheel frame and the second swing arm 303 of the wheel frame are torsionally unfolded, and the ladder wheel 306 is torsionally unfolded from the bottom of the folding fire hose cart to the outside. After the torsional unfolding, a stable support structure is formed under the action of the gravity of the folding fire hose cart.

[0088] The folding support rod 4 that is separated from the restriction of the inner wall of the fire truck or the mini fire station is torsionally unfolded under the action of the folding support rod tension spring 402, and forms a support structure with the ladder wheels 306 on both sides.

[0089] When releasing the hose, one end of the hose is fixed to the water supply fire connector. The user holds the handlebar 706 and drags it, driving the folding fire hose cart to move on the ground through the ladder wheels 306 in the folding ladder wheel mechanism 3, and causing the hose rack 6 to rotate to unfold the hose to the rescue location.

[0090] When winding up the hose, the hose rack 6 is moved to the positioning ports 101 of the left bracket 2 and the right bracket 1. The first step 601 of the hose rack 6 slides into the empty space formed by the three first bearings 102 provided on the left and right brackets under the action of the gravity of the hose rack 6, restricting the lower degree of freedom and the left and right degrees of freedom of the hose rack 6.

[0091] Rotate the pressure lever 705 so that the limit shaft hole 7031 on the pressure lever buckle 703 provided on the pressure lever 705 is inserted by the second pin shaft 1031. Continue to press down so that the second bearing 702 provided on the pressure lever 705 presses against the second step 602 of the hose reel 6, restricting the up degree of freedom of the hose reel 6 and forming a structure for the smooth rotation of the hose reel 6. The pressure lever buckle 703 is provided with an inclined surface on the side close to the second pin shaft 1031 so that the second pin shaft 1031 smoothly enters the limit shaft hole 7031 on the pressure lever buckle 703. The second step 602 of the hose reel 6 is higher than the first step 601, so that the hose reel 6 will not slide excessively under the clamping of the left and right brackets.

[0092] Then place the hose joint into the hose joint placement area 609 in the first hose placement area composed of two ribs 606. The ribs 606 are provided with flexible blocks 604 at intervals, so that the distance between one side of the flexible block 604 and the side of the opposite rib 606 is slightly smaller than the maximum diameter of the hose joint. The hose joint is embedded therein and requires a certain force to break away, thereby providing an initial clamping force of the hose reel 6 on the hose joint during the initial winding, and also providing a clamping force of the hose reel 6 on the hose joint when encountering the hose joint during winding to better wind the hose.

[0093] A hose winding area is formed between the two ribs 606. When initially winding the hose, the hose joint is embedded in the first hose joint placement area 609. When winding to the next hose joint, embed this hose joint into the second hose joint placement area 609, and wind in sequence until the last one. Fix the last hose joint with the hose joint fixing plate 607, and fix it to the ribs 606 with the magic tape 608 for convenient transportation and storage.

[0094] Rotate the belt divider swing arm so that the first pin shaft 8011 in the first pins 801 on both sides of the belt divider swing arm is inserted into the second holder hole 1052 provided on the baffle 105 arranged at the left and right brackets.

[0095] Pull the third pin 1102 (at this time, the hollow speed reducer assembly 11 and the hose reel 6 are not connected, and pulling the third pin 1102 is the switch to release the sliding shaft 1101 and connect it to the hose reel 6), so that the pin shaft of the third pin 1102 disengages from the sliding shaft limit groove 1105. Under the elastic reset action of the compression spring 1106, the sliding shaft 1101 slides inside the hollow shaft 1109 of the speed reducer towards the side close to the hose reel 6. Turn on the power button 7011 on the throttle grip 701 to energize the entire system (when not in use usually, the entire system is powered off to save battery power). When the controller 9 drives the stepper motor 803 to rotate and drives the belt divider 804 to move towards the right swing arm 805 of the belt divider until the magnet 8042 provided on the rotating arm 8041 of the belt divider triggers the magnetic induction switch 807 at the right swing arm 805 of the belt divider, the system finds the position zero point. Then the controller 9 drives the stepper motor 803 to rotate and drives the belt divider 804 to move towards the left swing arm 806 of the belt divider by a certain number of steps to the first hose placement area composed of two ribs 606 (when initially winding the hose, place the first hose joint in the hose joint placement area 609 in this hose placement area). Turn the forward / reverse button 7012 to the reverse position, and at the same time rotate the throttle grip 701 to make the hollow shaft 1109 of the speed reducer rotate to drive the sliding shaft 1101, so that the sliding shaft protrusion 1103 rotates in cooperation with the slot 603 provided on one side of the hose reel 6, and drives the hose reel 6 to rotate and wind the hose in the first hose placement area. When the second hose joint triggers the rotation of the rotating arm 8041 on the belt divider 804, the magnet 8042 provided on the rotating arm 8041 of the belt divider rotates accordingly, triggering the magnetic induction switch 807 provided at a position corresponding to the magnet 8042 on the rotating arm 8041 of the belt divider inside the belt divider 804, so that the wireless transmitter connected to it sends a signal to the wireless receiver provided in the controller 9. After receiving the signal, the controller 9 works. The controller 9 drives the stepper motor 803 to rotate and drives the belt divider 804 to move towards the left swing arm 806 of the belt divider by a certain number of steps to the second hose placement area composed of two ribs 606. Rotate the throttle grip 701 to rotate the hose reel 6, and rotate the second hose joint into the second hose joint placement area 609 and wait for the signal of the next hose joint. Repeat the above actions until the hose reel 6 is full of wound hoses (as Figure 4 );

[0096] Finally, fix the last hose joint with the hose joint fixing plate 607, and fix it on the rib 606 with the magic tape 608 for convenient transportation and storage (as Figure 5 and Figure 6 ).

[0097] Then turn off the power button 7011 on the throttle grip 701 to cut off the power of the entire system, and restart it to make the belt divider 804 move to the first hose placement area, then cut off the power to save battery power and enter the working mode at the fastest speed when starting next time.

[0098] After the hose is rolled up, the second pin 103 is rotated to shrink the second pin shaft 1031 to disengage from the limiting shaft hole 7031 on the pressure rod buckle 703, so that the pressure rod structure 7 is unlocked and rotated to the storage state, and the first pin 801 is rotated to shrink the first pin shaft 8011 to disengage from the second retainer hole 1052 set on the baffle 105, so that the belt splitter structure 8 is unlocked and rotated to the storage state. At this time, the hose rack 6 can be taken out for easy storage, and the retainer slot 5021 of the first retainer 501 is inserted into the baffles 105 on both sides, and the retainer pin 5023 is rotated to insert the pin shaft of the retainer pin 5023 into the first retainer hole 1051 of the baffles 105 on both sides.

[0099] The folding support rods 4 on both sides are rotated, and then the pin shafts of the folding support rod pins 401 are inserted into the folding support rod slots 403 to fix the folding support rods 4 on both sides.

[0100] The first swing arm and the second swing arm 303 of the foldable ladder wheel mechanism 3 on both sides are rotated to the storage state respectively, and are simply fixed on the foldable fire hose truck with Velcro tape 608 to prevent the two swing arms from unfolding under the action of the torsion spring.

[0101] Then, the auxiliary wheels 106 arranged under the left and right side brackets are used to move the foldable fire hose truck to the storage place of the fire truck or the micro fire station, and the Velcro rolling belt 608 simply fixed on the foldable fire hose truck is unfastened, and the folding support rod pin 401 is rotated to the unlocked state. When in use, the foldable fire hose truck is lifted up to leave the storage place of the fire truck or the micro fire station, and the two folding support rods 4 are elastically released to the supporting position under the action of the folding support rod tension spring 402. The folding ladder wheel mechanism 3 unfolds the ladder wheels 306 on both sides under the action of the first torsion spring 304 and the second torsion spring 305, so as to strive to put the foldable fire hose truck into working state as quickly as possible when in use, minimize the rescue time, and increase the probability of rescue.

[0102] Alternatively, the hose rack 6 can be left intact and the pin shafts of the retaining pins 5023 on both sides of the second retaining rack 502 can be inserted into the first retaining rack holes 1051 and the second retaining rack holes 1052 of the baffles 105 on both sides, and the adjustable pressure block 5022 can be used to press against the second steps 602 on both sides of the hose rack 6 to fix the hose rack 6 on the foldable fire hose truck.

[0103] In the present invention, the folding support rods 4 on both sides are rotated to a suitable position to ensure that they can provide stable support for the fire hose truck. The pin shaft of the folding support rod pin 401 is inserted into the folding support rod slot 403, so that the position of the support rod can be locked to prevent them from moving or folding during storage. The first swing arm of the wheel frame and the second swing arm of the wheel frame 303 in the folding ladder wheel mechanism 3 on both sides are rotated respectively to adjust them to the storage state, so as to realize the folding storage of the ladder wheel and its mechanism, and reduce the space occupied during transportation or storage.

[0104] In the present utility model, by unfastening the magic tape fastener 608 simply fixed to the folding fire hose cart and simultaneously rotating the folding support rod pin 401 to the unlocking state, the ladder wheel mechanism can be quickly released, and the two side folding support rods 4 and the two side ladder wheels 306 can be quickly unfolded.

[0105] The controller 9, battery 10, hollow speed reducer 1110 with a speed reducer hollow shaft 1109, handlebar 701 (there is a control board for controlling the speed reducer in the controller, and all wires of the handlebar first enter the control board and then go to each motor. The circuit connection is prior art and is directly used in the present utility model without further elaboration here), stepping motor 803, and magnetic induction switch 807 in the above embodiments are all in the well-known and mature technical fields for those skilled in the art, can be obtained by purchasing in the market, and are only used without changing their structures and functions.

[0106] The above are all the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model shall be covered within the protection scope of the present utility model.

Claims

1. A foldable fire hose cart, characterized in that: It includes a movable support (12) and a cage (5). The movable support (12) includes two groups of brackets, two groups of folding ladder wheel mechanisms (3) and two groups of folding support rods (4). The two groups of brackets are a left bracket (2) and a right bracket (1) respectively. Baffles (105) are installed on the side walls of the two groups of brackets facing away from each other. A pressure rod structure (7) and a belt separator structure (8) are connected to the movable support (12). A water belt rack (6) is arranged at the upper end inside the movable support (12). A hollow speed reducer assembly (11) for driving the water belt rack (6) to rotate is arranged beside the movable support (12). A controller (9) and a battery (10) are arranged at the bottom inside the movable support (12).

2. The folding fire hose cart according to claim 1, wherein: Auxiliary wheels (106) are arranged at both ends of the bottom of the right bracket (1) and both ends of the bottom of the left bracket (2).

3. A foldable fire hose vehicle according to claim 1, characterized in that: The folding ladder wheel mechanism (3) includes a ladder wheel frame, a positioning wheel frame (301) and a first swing arm (302) of the wheel frame. Three ladder wheels (306) are arranged on the ladder wheel frame. The positioning wheel frame (301) is installed at the bottom of the bracket. A second swing arm (303) of the wheel frame is arranged on one side of the ladder wheel frame. One end of the first swing arm (302) of the wheel frame is rotatably connected to the positioning wheel frame (301) through a first rotating shaft. A first torsion spring (304) is arranged on the first rotating shaft. The other end of the first swing arm (302) of the wheel frame is rotatably connected to the second swing arm (303) of the wheel frame through a second rotating shaft. A second torsion spring (305) is arranged on the second rotating shaft. A wheel frame groove (3011) for the rotation of the first swing arm (302) of the wheel frame is opened on the positioning wheel frame (301).

4. A folding fire hose cart according to claim 1, characterized in that: A stable connecting rod (107) is fixedly connected between the two groups of brackets. The two groups of folding support rods (4) are located at the bottom of the stable connecting rod (107). One end of each of the two groups of folding support rods (4) facing away from each other is rotatably connected to the stable connecting rod (107). A folding support rod pin (401) is inserted into the top of the stable connecting rod (107). A folding support rod slot (403) matching the folding support rod pin (401) is opened between the two groups of folding support rods (4). A folding support rod tension spring (402) is connected between the end of the folding support rod (4) away from the folding support rod slot (403) and the bottom of the corresponding bracket.

5. A foldable fire hose cart according to claim 1, characterized in that: The cage (5) is a first cage (501) or a second cage (502). Cage slots (5021) are opened at both ends of the cage (5). Cage pins (5023) matching the cage slots (5021) are respectively arranged at both ends of the cage (5). A first cage hole (1051) matching the cage pin (5023) is opened at the rear end of the top of the baffle (105).

6. The folding fire hose vehicle according to claim 5, characterized in that: Adjustable pressure blocks (5022) are arranged at the bottom ends of the left and right side walls inside the second cage (502).

7. The folding fire hose vehicle according to claim 1, characterized in that: The hose rack (6) includes a hose joint fixing plate (607), a Velcro strap (608), two keels (605) and a number of ribs (606). One end of the Velcro strap (608) is connected to the hose joint fixing plate (607). A number of ribs (606) are arranged at equal intervals along the length direction on the two keels (605). Flexible stoppers (604) are provided on both the front and rear sides of the ribs (606). The middle position between any two adjacent ribs (606) is a hose joint placement area (609). Second steps (602) are connected to both the left and right ends of the hose rack (6). First steps (601) are connected to the ends of the two groups of second steps (602) that are away from each other. A slot hole (603) that matches the output end of the hollow speed reducer assembly (11) is provided at the end of the first step (601) away from the second step (602).

8. A foldable fire hose cart according to claim 1, characterized in that: Pressure rods (705) are rotatably connected to the sides of the right bracket (1) and the left bracket (2) that are close to each other. The pressure rod structure (7) includes a handle rod (706). The handle rod (706) is connected between the two pressure rods (705). A turning handle (701) is provided on the handle rod (706). A power button (7011) and a forward and reverse button (7012) are provided on the turning handle (701). A second bearing (702) and a pressure rod buckle (703) are provided at the end of the pressure rod (705) away from the handle rod (706). A limiting shaft hole (7031) is provided on the pressure rod buckle (703). Second pins (103) are inserted into the sides of the two groups of brackets that are away from each other. The second pin (103) includes a second pin shaft (1031).

9. The folding fire hose cart according to claim 1, characterized in that: The tape separator structure (8) includes a stepping motor (803), a tape separator (804) and two tape separator swing arms, one is a tape separator right swing arm (805) and the other is a tape separator left swing arm (806). The top end of the tape separator right swing arm (805) is rotatably connected to the outside of a baffle (105) on the right bracket (1). The top end of the tape separator left swing arm (806) is rotatably connected to the outside of a baffle (105) on the left bracket (2). The stepping motor (803) is installed on the outer side wall of the tape separator right swing arm (805). The tape separator (804) includes two groups of tape separator rotating arms (8041). Magnets (8042) are installed on the side walls of the two groups of tape separator rotating arms (8041) that are away from each other. Magnetic induction switches (807) that cooperate with the magnets (8042) are installed on the sides of the two tape separator swing arms that are close to each other and at positions inside the tape separator (804) close to the magnets (8042). First pins (801) are inserted into the upper ends of the side walls of the two tape separator swing arms that are away from each other. The first pin (801) includes a first pin shaft (8011). Second cage holes (1052) and third cage holes (1053) that are inserted and matched with the first pin shaft (8011) are respectively provided on the outer side wall of the baffle (105).

10. A foldable fire hose vehicle according to claim 9, characterized in that: Two displacement slide bars (809) are fixedly connected to the bottom ends between the two belt splitter swing arms, and a displacement screw rod (808) is rotatably connected to the bottom ends between the two belt splitter swing arms. The displacement screw rod (808) is located between the two displacement slide bars (809). The belt splitter (804) is threadedly connected to the displacement screw rod (808) and slidably connected to the two displacement slide bars (809). The power output end of the stepping motor (803) is connected to a main bevel gear (8031). One end of the displacement screw rod (808) extending out of the outer side wall of the right swing arm (805) of the belt splitter is connected to a driven bevel gear (8032). The main bevel gear (8031) is meshed with the driven bevel gear (8032).

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