A fire hose reeling device

Abstract

This invention relates to the field of fire-fighting equipment technology and discloses a fire hose winding and laying device, comprising: a remote-controlled transfer chassis with a walking drive mechanism; a carriage mounted on the remote-controlled transfer chassis, with a first opening at the top of the carriage; a winding and laying system installed at the first opening of the carriage; and a controller electrically connected to the remote controller, the walking drive mechanism, and the winding and laying system to control the operation of the remote-controlled transfer chassis and the winding and laying system. The winding and laying system includes a first drive mechanism, a second drive mechanism, and a conveyor platform. The first drive mechanism drives the second drive mechanism to reciprocate along the width or length direction of the carriage, and the second drive mechanism drives the conveyor platform to reciprocate perpendicular to the movement direction of the first drive mechanism. The conveyor platform is used to clamp and convey the fire hose. This device is suitable for use in fire scenes and daily fire-fighting training, allowing for remote control of fire hose winding and laying, greatly saving manpower and time, and is highly practical and safe.

Description

Technical Field

[0001] This invention relates to the field of fire protection equipment technology, and specifically to a fire hose reeling device. Background Technology

[0002] During firefighting, rescue operations, or routine training, firefighters often need to lay and reel in hundreds or even thousands of meters of hose at a single incident site. A typical 20-meter roll of dry hose weighs about 8 kg; its large size and weight require multiple trips and relay work during laying, consuming considerable physical strength and time. After firefighting or training, a 20-meter roll of wet hose weighs about 20 kg. Reeling in the hose requires squeezing out any remaining water before winding it up. It takes a firefighter about 4 minutes to reel in one roll, and the remaining water is difficult to completely remove, affecting efficiency and effectiveness. Furthermore, firefighters are exhausted after a rescue or training session, making hose reeling even more challenging. Existing hose reeling devices still have many limitations, such as low automation, need for coordination with fire trucks, difficult operation, low efficiency, and inability to adapt well to real-world firefighting scenarios. Summary of the Invention

[0003] To address the shortcomings of the existing technology, this invention provides a fire hose laying and winding device. This device is equipped with a remote-controlled transfer chassis, and its movement is controlled by a remote controller. Through a laying and winding system that works in conjunction with a vehicle, it automatically outputs and retracts the fire hose, achieving automatic laying and winding of the hose. This device is suitable for use in fire scenes and daily fire training, greatly saving manpower and time. It can be remotely controlled to reach deep into the fire scene, is convenient and flexible to use, and offers high safety.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A fire hose winding and laying device, suitable for winding and laying fire hoses, comprising:

[0006] The remote-controlled transfer chassis is equipped with a walking drive mechanism;

[0007] A carriage for storing water hoses is mounted on the remote-controlled transfer chassis, and a first opening is provided on the upper part of the carriage;

[0008] The water hose is retrieved or discharged from the carriage by a retrieval system, which is installed at the first opening of the carriage.

[0009] The controller is electrically connected to the remote controller, the walking drive mechanism, and the hauling system, and controls the operation of the remote-controlled transfer chassis and the hauling system;

[0010] The conveying system includes a first drive mechanism, a second drive mechanism mounted on the first drive mechanism, and a conveyor platform mounted on the second drive mechanism. The first drive mechanism drives the second drive mechanism to reciprocate along the width or length of the carriage, and the second drive mechanism drives the conveyor platform to reciprocate perpendicular to the direction of movement of the first drive mechanism. The conveyor platform is used to clamp and convey the water hose.

[0011] In one embodiment of this application, the first driving mechanism includes a first slide table, a first slide block mounted on the first slide table, and a first motor. The first slide table is arranged along the width or length direction of the carriage, and the first motor drives the first slide block to reciprocate along the first slide table.

[0012] The second drive mechanism includes a second slide table, a second slide block mounted on the second slide table, and a second motor. The second slide table is mounted on the first slide block and is perpendicular to the first slide table. The second motor drives the second slide block to reciprocate along the second slide table.

[0013] The conveyor platform is mounted on the second slide.

[0014] In one embodiment of this application, the first drive mechanism includes two, and the two first drive mechanisms are arranged in parallel at both ends or both sides of the first opening of the carriage.

[0015] The two ends of the second slide are respectively mounted on the first slide base of the first drive mechanism.

[0016] In one embodiment of this application, the conveyor table includes a belt conveyor and pressure rollers;

[0017] The conveying direction of the belt conveyor is consistent with the length direction of the carriage;

[0018] The pressure roller is rotatably mounted on the belt of the belt conveyor, and works with the belt to clamp and convey the water belt.

[0019] In one embodiment of this application, the pressure roller is driven to rotate by a third motor, and the pressure roller operates synchronously with the belt conveyor;

[0020] And / or, one end of the pressure roller is connected to the side of the belt conveyor via a rotating arm, and the rotating arm drives the pressure roller to press against the belt and / or water hose with a downward elastic force.

[0021] In one embodiment of this application, a power supply module is also included. The power supply module is a rechargeable battery and is electrically connected to the walking drive mechanism, the first drive mechanism, the second drive mechanism, and the conveyor.

[0022] In one embodiment of this application, the walking drive mechanism includes a fourth motor and a four-wheel drive assembly connected together, and the fourth motor and the four-wheel drive assembly are both electrically connected to the power supply module and the controller.

[0023] In one embodiment of this application, an AI camera and a lighting fixture are also included. The AI ​​camera and the lighting fixture are mounted on the carriage and / or the remote-controlled transfer chassis, and are both electrically connected to the power supply module and the controller.

[0024] In one embodiment of this application, the carriage is an open carriage with a second opening at the rear and third openings on both sides.

[0025] In one embodiment of this application, a roller bracket is also provided, which is located at the upper part of the front end and / or rear end of the carriage and is used to cooperate with the conveyor platform to support the water hose.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. The fire hose laying and winding device of the present invention is equipped with a remote-controlled transfer chassis. The device moves under the control of a remote controller. Through the laying and winding system working in conjunction with the vehicle, the device automatically outputs and retracts the fire hose, realizing the automatic laying and winding of the fire hose. This device is suitable for use in fire scenes and daily fire training. It can greatly save the manpower and time required for laying and winding fire hoses, improve fire extinguishing efficiency, and reduce the physical exertion of firefighters. The device has a simple structure, is lightweight, and compact. It can be carried by vehicle, can pass through narrow passages that fire trucks cannot pass through, can be remotely controlled to reach deep into the fire scene, and is convenient, flexible, and highly safe to use.

[0028] 2. The hose laying system, through the cooperation of the first drive mechanism, the second drive mechanism and the conveyor table, can automatically fold and neatly arrange the hoses and roll them into the carriage, or output the hoses from the carriage one by one for laying.

[0029] 3. The conveyor platform is equipped with a matching belt conveyor and pressure roller to guide and transport the water belt; when the pressure roller presses against the belt and water belt, it has a downward elastic force to ensure that the water belt is lifted and does not easily slip relative to each other, and to ensure that the water belt is folded neatly; at the same time, the pressure roller and the belt can also ensure that the water belt is completely drained.

[0030] 4. The device is equipped with a power supply module powered by a rechargeable battery, enabling wireless operation and making it more convenient and flexible to use; it is equipped with an AI camera and lighting for on-site image acquisition and illumination, facilitating remote intelligent control of the device according to the on-site situation; the carriage is designed as an open carriage, which facilitates the bundling and unbundling of water hoses, as well as the loading and unloading of water hoses. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a front view structural schematic diagram of the fire hose reeling device of the present invention.

[0033] Figure 2 This is a three-dimensional structural diagram of the fire hose reeling device of the present invention. Figure 1 .

[0034] Figure 3 This is a three-dimensional structural diagram of the fire hose reeling device of the present invention. Figure 2 .

[0035] Figure 4 This is a three-dimensional structural diagram of the fire hose reeling device of the present invention. Figure 3 .

[0036] Figure label:

[0037] 1. Remote-controlled transport chassis; 11. Four-wheel drive components;

[0038] 2. Carriage; 21. First opening; 22. Second opening; 23. Third opening; 24. Roller support;

[0039] 3. Laying and unloading system; 31. First drive mechanism; 311. First slide table; 312. First slide block; 32. Second drive mechanism; 321. Second slide table; 322. Second slide block; 33. Conveyor table; 331. Belt conveyor; 332. Pressure roller; 333. Rotating arm;

[0040] 4. AI camera;

[0041] 5. Lighting;

[0042] 6. Water hose. Detailed Implementation

[0043] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0044] In the description of this invention, it should be understood that the terms "lateral", "length", "width", "upper", "lower", "front", "rear", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0045] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0046] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, these are merely examples and are not intended to limit the present invention.

[0049] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0050] like Figures 1 to 4 As shown, this embodiment of the invention provides a fire hose winding and laying device, which is suitable for winding and laying fire hoses and can be applied to fire rescue scenes and daily fire training. The device includes: a remote-controlled transfer chassis 1, a carriage 2 mounted on the remote-controlled transfer chassis 1, a winding and laying system 3 mounted on the carriage 2, and a controller and remote control, etc.

[0051] The remote-controlled transfer chassis 1 is equipped with a walking drive mechanism for carrying and driving movement.

[0052] The carriage 2 is located on the remote-controlled transfer chassis 1, and its upper part is provided with a first opening 21 for the water supply hose 6 to enter and exit. The carriage 2 is used for winding, placing and storing the water hose 6.

[0053] The hose reeling system 3 is located at the first opening 21 on the upper part of the carriage 2 and is used to retract or exit the hose 6 from the carriage 2 for the purpose of reeling or laying the hose 6.

[0054] The controller (not shown in the figure) is installed inside the remote-controlled transfer chassis 1 or at the front of the carriage 2. The controller is electrically connected to the walking drive mechanism, the hauling and laying system, etc.; and is equipped with a remote controller (not shown in the figure), which can remotely command the controller to control the operation of the remote-controlled transfer chassis 1 and the hauling and laying system 3, so as to realize the automatic walking of the device and the hauling or laying of the water hose.

[0055] The winding and laying system 3 includes a first drive mechanism 31, a second drive mechanism 32, and a conveyor table 33. The first drive mechanism 31 is mounted on the carriage 2, and the second drive mechanism 32 is mounted on the first drive mechanism 31. The first drive mechanism 31 drives the second drive mechanism 32 to reciprocate along the width or length direction of the carriage 2. The conveyor table 33 is mounted on the second drive mechanism 32, and the second drive mechanism 32 drives the conveyor table 33 to reciprocate in a direction perpendicular to the movement of the first drive mechanism 31. The conveyor table 33 is used to clamp and convey the water hose 6 to retract or exit the water hose 6 from the carriage 2, thus realizing the winding or laying of the water hose 6.

[0056] In one implementation, such as Figure 2 and Figure 3 As shown, both the first drive mechanism 31 and the second drive mechanism 32 are linear drive mechanisms, such as servo motor lead screw mechanisms. Specifically, the first drive mechanism 31 includes a first slide 311, a first slide block 312, and a first motor (not shown in the figure). The first slide 311 is arranged along the width or length direction of the carriage 2. Figures 2 to 4The first slide table is arranged along the width direction of the carriage. The first slide block 312 is slidably mounted on the first slide table 311. The first motor drives the first slide block 312 to reciprocate along the first slide table 311. When the first slide table 311 is a lead screw slide table, the first motor drives the lead screw to rotate, thereby driving the first slide block 312 to reciprocate. The first motor is installed inside or at the end of the first slide table 311.

[0057] The second drive mechanism 32 includes a second slide table 321, a second slide block 322, and a second motor (not shown in the figure). The second slide table 321 is mounted on the first slide block 312, and its length direction is perpendicular to the length direction of the first slide table 311. The second slide block 322 is slidably mounted on the second slide table 321, and is driven by the second motor to reciprocate along the second slide table 311. Similarly, when the second slide table 321 is a lead screw slide table, the second motor drives the lead screw to rotate, thereby driving the second slide block 322 to reciprocate. The second motor is installed inside or at the end of the second slide table 321.

[0058] The conveyor 33 is mounted on the second slide 322 of the second drive mechanism 32, and the second slide 322 drives the conveyor 33 to move along the length or width direction at the first opening 21 of the carriage 2. The first slide 311 of the first drive mechanism 31 extends outside the carriage 2 to provide clearance for the second drive mechanism 32, ensuring that the water hose 6 conveyed by the conveyor 33 completely covers the area inside the carriage 2.

[0059] In a further embodiment, the first drive mechanism 31 includes two parts, which are respectively disposed at both ends or both sides of the first opening 21 of the carriage 2. Figures 2 to 4 Two first drive mechanisms are respectively located at both ends of the first opening 21. The first slides 311 of the two first drive mechanisms 31 are parallel to each other. There is one second drive mechanism 32, and the two ends of its second slide 322 are respectively mounted on the first slide block 311 of one of the first drive mechanisms 31. The second slide block 322 is driven to move by the synchronous operation of the two first slide blocks 311.

[0060] The first drive mechanism 31 and the second drive mechanism 32 adopt servo motor screw mechanism, which is installed in conjunction with the carriage 2 and the first opening 21, making the overall structure of the device more compact and easy to control the water hose 6 to be neatly folded and placed into the carriage 2 along the length and width directions, and the operation is simple; two first drive mechanisms 31 are set, which can make the structure and operation of the winding system more stable and can withstand the pulling force when lifting the water hose 6.

[0061] like Figure 2 and Figure 3As shown, the conveyor platform 33 includes a belt conveyor 331 and a pressure roller 332. Preferably, the conveying direction of the belt conveyor 331 is consistent with the length direction of the carriage 2, so that the winding and laying direction of the water hose 6 is consistent with the traveling direction of the winding and laying device, which facilitates long-distance water hose winding or laying and ensures smooth operation of the conveyor platform 33 and the remote-controlled transfer chassis 1. The pressure roller 332 is rotatably mounted on the belt conveyor 331 and cooperates with the belt of the belt conveyor 331 to clamp and convey the water hose 6.

[0062] Furthermore, a third motor (not shown in the figure) is also provided. The third motor can be located inside the pressure roller 332 or on one end side. The third motor is used to drive the pressure roller 332 to rotate. The pressure roller 332 should run synchronously with the belt conveyor 331, that is, drive the water belt 6 to run in the same direction, and the rotation speed is the same as the belt running speed. The pressure roller 332 is driven to rotate by the third motor, which can increase the lifting force on the water belt 6 and ensure that the water belt 6 is lifted smoothly.

[0063] In one implementation, such as Figure 3 As shown, one end of the pressure roller 332 is connected to the side of the belt conveyor 331 via a rotating arm 333. The rotating arm 333 can drive the pressure roller 333 to lift or press down. When the rotating arm 333 drives the pressure roller 333 to press down, the pressure roller 332 presses against the belt, or against the belt and the water belt 6 conveyed on the belt. The pressure roller 332 exerts a downward elastic force on the belt and the water belt 6. The pressure roller 332 and the belt conveyor 331 operate synchronously and have an elastic force between them, which can effectively ensure that the water belt 6 is clamped and lifted, ensure that the water belt 6 and the belt are conveyed synchronously and at a uniform speed, and prevent relative slippage. This ensures that the water belt 6 is neatly folded when it is wound up and smoothly laid along the preset route during installation. It can also effectively ensure that the water accumulated in the water belt 6 is completely drained when it is wound up. One end of the pressure roller 332 is equipped with a rotating arm 33 connected to the belt conveyor 331, which facilitates lifting or pressing the pressure roller 332 and makes it easy to pick up and put down the water belt 6; it can also effectively control the relative position of the pressure roller 332 and the belt conveyor 331, ensuring that the water belt 6 is conveyed with appropriate elastic force and avoiding excessive or insufficient pressure.

[0064] The fire hose reeling device also includes a power supply module (not shown in the figure), which is located inside the remote-controlled transfer chassis 1 and is powered by a rechargeable battery, such as a rechargeable lithium battery. This power supply module is electrically connected to the walking drive mechanism, the first drive mechanism 31, the second drive mechanism 32, and the conveyor platform 33, providing power for the operation of each mechanism. Using rechargeable batteries eliminates the need for an engine system, resulting in a simpler and lighter structure, lower operating costs, greater flexibility, and easier remote control.

[0065] The walking drive mechanism includes a fourth motor (not shown in the figure) and a four-wheel drive assembly 11 connected to each other. Both the fourth motor and the four-wheel drive assembly 11 are electrically connected to the power supply module and the controller. Powered by the power supply module, the fourth motor drives the four-wheel drive assembly 11 to move the fire hose reeling device. The controller controls the start, stop, and speed of the fourth motor and the four-wheel drive assembly 11, thereby achieving remote intelligent control and drive. The remote-controlled transfer chassis 1 adopts four-wheel drive, which has strong driving force and can adapt well to different road conditions, making it better suited for use at fire-fighting sites.

[0066] like Figure 2 and Figure 3 As shown, the device also includes an AI camera 4 and a lighting lamp 5, which are installed at the front of the carriage 2 and / or the front of the remote-controlled transfer chassis 2. Both the AI ​​camera 4 and the lighting lamp 5 are electrically connected to the power supply module and controller. The AI ​​camera 4 can collect image information of the area in front of the carriage 2 and automatically adjust the device's direction of travel according to the direction of the water hose 6 using AI recognition technology. Simultaneously, it can transmit the image information to the remote control for display on the remote control's screen, allowing operators to intuitively understand the situation on-site. In one embodiment, at least two AI cameras 4 are provided, positioned on both sides of the front of the carriage 2, to avoid the water hose 6 obstructing the AI ​​camera 4 and affecting image acquisition. In another embodiment, the AI ​​camera 4 is an adjustable omnidirectional camera that can automatically avoid obstruction by the water hose 6, ensuring complete image acquisition and accurately adjusting the direction of travel according to the position of the water hose 6.

[0067] like Figures 1 to 4 As shown, the carriage 2 is an open carriage. In addition to the first opening 21 at the top, it has a second opening 22 at the rear and a third opening 23 on each side. The third openings 23 on both sides facilitate the bundling or unbundling of the water hoses 6 inside the carriage 2 from the side. The second opening 22 at the rear facilitates the removal or insertion of bundled water hoses 6 from the rear, making the operation more convenient.

[0068] It also includes a roller bracket 24, which is located at the upper part of the front end and / or rear end of the carriage 2. The roller bracket 24 is horizontally set, its length is adapted to the width of the carriage 2, and its installation position is adapted to the position of the conveyor table 33. It is used to support the water hose 6, ensure that the water hose 6 is smoothly retracted or discharged, and reduce the friction between the water hose 6 and the outer surface of the carriage 2.

[0069] In summary, the fire hose laying and winding device of the present invention is equipped with a remote-controlled transfer chassis 2, which moves under the control of a remote controller. Through the laying and winding system 3 cooperating with the carriage 2, it automatically outputs and retracts the fire hose 6, achieving automatic laying and winding of the fire hose 6. This device is suitable for use in fire scenes and daily fire training, greatly saving manpower and time required for laying and winding fire hoses, improving firefighting efficiency, and reducing the physical exertion of firefighters. The device has a simple structure, is lightweight, and compact, allowing it to be carried by vehicle. It can pass through narrow passages inaccessible to fire trucks, can be remotely controlled to reach fire scenes, and is convenient, flexible, and highly safe. Its laying and winding system, through the cooperation of the first drive mechanism 31, the second drive mechanism 32, and the conveyor platform 33, can automatically fold and neatly arrange the fire hose 6 into the carriage 2, or sequentially output the fire hose 6 from the carriage 2 for laying. The conveyor platform 33 is equipped with a matching belt conveyor 331 and pressure roller 332 to guide and transport the water hose 6. The pressure roller 332 exerts a downward elastic force when pressing against the belt and water hose 6, ensuring the water hose 6 is lifted smoothly, preventing relative slippage, and ensuring the water hose 6 is neatly folded. Simultaneously, the pressure roller 332, in conjunction with the belt, ensures complete drainage of any accumulated water from the water hose. The device is equipped with a power supply module powered by a rechargeable battery, enabling wireless operation for greater convenience and flexibility. An AI camera 4 and a lighting lamp 5 are installed for on-site image acquisition and illumination, facilitating remote intelligent control of the device based on site conditions. The carriage 2 is designed as an open carriage, facilitating the bundling, unbundling, and loading / unloading of the water hose 6.

Claims

1. A fire hose reeling device, characterized in that, Suitable for the winding and laying of fire hoses, including: The remote-controlled transfer chassis is equipped with a walking drive mechanism; A carriage for storing water hoses is mounted on the remote-controlled transfer chassis, and a first opening is provided on the upper part of the carriage; The water hose is retrieved or discharged from the carriage by a retrieval system, which is installed at the first opening of the carriage. The controller is electrically connected to the remote controller, the walking drive mechanism, and the hauling system, and controls the operation of the remote-controlled transfer chassis and the hauling system; The conveying system includes a first drive mechanism, a second drive mechanism mounted on the first drive mechanism, and a conveyor platform mounted on the second drive mechanism. The first drive mechanism drives the second drive mechanism to reciprocate along the width or length direction of the carriage, and the second drive mechanism drives the conveyor platform to reciprocate perpendicular to the movement direction of the first drive mechanism. The conveyor platform is used to clamp and convey the water hose. The first drive mechanism includes a first slide table, a first slide block mounted on the first slide table and a first motor. The first slide table is arranged along the width or length of the carriage, and the first motor drives the first slide block to reciprocate along the first slide table. The second drive mechanism includes a second slide table, a second slide block mounted on the second slide table, and a second motor. The second slide table is mounted on the first slide block and is perpendicular to the first slide table. The second motor drives the second slide block to reciprocate along the second slide table. The conveyor table is installed on the second slide; The first drive mechanism includes two, which are arranged in parallel at both ends or both sides of the first opening of the carriage. The two ends of the second slide are respectively mounted on the first slide of a first drive mechanism; the two first slides operate synchronously. The first slide portion of the first drive mechanism extends outside the carriage to provide space for the second drive mechanism; The conveyor table includes a belt conveyor and pressure rollers; The conveying direction of the belt conveyor is consistent with the length direction of the carriage; The pressure roller is mounted on the belt of the belt conveyor and works with the belt to clamp and convey the water belt; The pressure roller is driven to rotate by a third motor, and the pressure roller runs synchronously with the belt conveyor. One end of the pressure roller is connected to the side of the belt conveyor via a rotating arm. When the rotating arm drives the pressure roller to press against the belt and / or water belt, it has a downward elastic force.

2. The fire hose reeling device according to claim 1, characterized in that, It also includes a power supply module, which is a rechargeable battery, and is electrically connected to the walking drive mechanism, the first drive mechanism, the second drive mechanism, and the conveyor.

3. The fire hose reeling device according to claim 2, characterized in that, The walking drive mechanism includes a fourth motor and a four-wheel drive assembly connected together. The fourth motor and the four-wheel drive assembly are both electrically connected to the power supply module and the controller.

4. The fire hose reeling device according to claim 2, characterized in that, It also includes an AI camera and lighting, which are installed on the carriage and / or remote-controlled transfer chassis and are all electrically connected to the power supply module and controller.

5. The fire hose reeling device according to claim 1, characterized in that, The carriage is an open carriage with a second opening at the rear and a third opening on each side.

6. The fire hose reeling device according to claim 1, characterized in that, It is also equipped with a roller bracket, which is located at the upper part of the front end and / or rear end of the carriage, and is used to cooperate with the conveyor platform to support the water hose.

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