Automatic water hose winding and unwinding device

Abstract

The utility model provides an automatic take-up and pay-off device for a water hose, which comprises a controller, a walking chassis and a water hose take-up and pay-off system fixed on the walking chassis, the water hose take-up and pay-off system comprises a reel motor, a water hose reel and an electromagnetic clutch electrically connected with the controller, the electromagnetic clutch is connected between the reel motor and the water hose reel and used for combining or separating a driving shaft of the reel motor and an input shaft of the water hose reel.

Description

Technical Field

[0001] This utility model relates to the technical field of hose reeling and unloading devices, and in particular to an automatic hose reeling and unloading device. Background Technology

[0002] Hose laying vehicles are primarily used for laying water supply pipelines and play a vital role in emergency rescue missions such as firefighting, long-distance water supply, and drainage operations. A hose laying vehicle typically consists of a chassis assembly and an integrated hydraulic hose deployment and retraction system. Its functions include hose laying and retrieval, enabling rapid hose laying and retrieval whether the vehicle is moving or stationary, reducing manual labor intensity and time costs.

[0003] However, the industry generally faces a technical bottleneck due to the significant lag in the response of hydraulic systems, resulting in a dynamic mismatch between the hose reeling and unwinding rate and the chassis travel speed. When the chassis is reversing, the hose laying speed exceeding the chassis travel speed can easily lead to the risk of hose breakage; while when the chassis is moving forward, if the hose reeling speed is too slow, the hose may be crushed by the chassis; conversely, if the reeling speed is too fast, the automatic reeling force may be too great, causing damage to the hose or the hose reeling mechanism of the laying vehicle. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a solution to the technical problem in the prior art where the deviation between the hose reeling and unloading rate and the chassis driving speed causes damage to the hose or the hose mechanism of the laying vehicle.

[0005] To achieve the above objectives, this utility model provides an automatic hose reel device, comprising: a controller, a traveling chassis, and a hose reel system fixed on the traveling chassis. The hose reel system includes a reel motor, a hose reel, and an electromagnetic clutch electrically connected to the controller. The electromagnetic clutch is connected between the reel motor and the hose reel and is used to engage or disengage the drive shaft of the reel motor from the input shaft of the hose reel.

[0006] Furthermore, the reel motor is connected to a load detection device for detecting the load of the reel motor and a load adjustment device for adjusting the load of the reel motor, and both the load detection device and the load adjustment device are connected to the controller.

[0007] Furthermore, the reel motor is a hydraulic motor, the load detection device is an oil pressure sensor installed in the hydraulic drive circuit of the reel motor, and the load adjustment device is an overflow regulating valve installed in the hydraulic drive circuit of the reel motor.

[0008] Furthermore, the reel motor is an electric motor, the load detection device is a current sensor installed in the power supply circuit of the reel motor, and the load adjustment is a voltage regulator installed in the power supply circuit of the reel motor.

[0009] Furthermore, the controller is connected to a display for showing the load alarm of the reel motor.

[0010] Furthermore, the automatic hose reel device also includes a remote controller, which is wirelessly connected to the controller.

[0011] Furthermore, the chassis includes a chassis frame, a drive wheel, a tensioner, track rollers, track supports, tracks, and a drive motor; the drive wheel is located at one end of the chassis frame, the tensioner is located at the other end of the chassis frame, the track supports are located below the chassis frame, the track rollers are located above the chassis frame, and the tracks are located outside the drive wheel, the tensioner, the track supports, and the track rollers.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The input shaft of the hose reel of this invention is engaged with the drive shaft of the hydraulic motor using an electromagnetic clutch. When the electromagnetic clutch is closed, it can engage the drive shaft of the reel motor with the input shaft of the hose reel, allowing the reel motor to drive the hose reel to rotate and complete the hose winding and unwinding operation. When the electromagnetic clutch is energized, it separates the reel motor from the hose reel, and the hose reel is in a free-rotating state. This greatly improves the winding efficiency of the automatic hose winding and unwinding device.

[0014] The automatic hose reel device of this invention can detect the hose reel winding pressure in real time through a load detection device, and automatically adjust the winding pressure through a load adjustment device when the hose winding pressure exceeds the pressure threshold; it can effectively prevent hose damage or damage to the hose mechanism of the laying vehicle caused by excessive winding force, and improve the safety and reliability of the automatic hose reel device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the automatic hose reel in / out device of this utility model;

[0016] Figure 2 This is a schematic diagram of the automatic hose reel in / out device of this utility model;

[0017] In the picture:

[0018] 1. Controller; 2. Display; 3. Remote control; 4. Walking chassis; 5. Hose winding system; 6. Electromagnetic clutch; 7. Reel motor; 8. Hose reel; 9. Load adjustment device; 10. Load detection device. Detailed Implementation

[0019] To facilitate understanding of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] The present invention will now be described in detail. In the following paragraphs, different aspects of the embodiments are defined in more detail. These aspects may be combined with any other aspect or multiple aspects unless explicitly stated otherwise. In particular, any feature considered preferred or advantageous may be combined with one or more other features considered preferred or advantageous.

[0021] In the description of this utility model, it should be understood that the terms "inner", "outer", "upper", "lower", "left" and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0022] refer to Figures 1 to 2 As shown, this utility model discloses an automatic hose reeling device, including: a controller 1, a traveling chassis 4, and a hose reeling system 5 fixed on the traveling chassis 4. The traveling chassis 4 includes a chassis frame, drive wheels, tension wheels, track rollers, support rollers, tracks, and a drive motor; the drive wheels are located at one end of the chassis frame, the tension wheels are located at the other end of the chassis frame, the support rollers are located below the chassis frame, the track rollers are located above the chassis frame, and the tracks are located outside the drive wheels, tension wheels, support rollers, and track rollers. The hose reeling system 5 includes a reel motor 7, a hose reel 8, and an electromagnetic clutch 6 electrically connected to the controller 1. The electromagnetic clutch 6 is connected between the reel motor 7 and the hose reel 8, and is used to engage or disengage the drive shaft of the reel motor 7 from the input shaft of the hose reel 8.

[0023] Among them, the electromagnetic clutch 6 is normally closed. When the electromagnetic clutch 6 is closed, it can engage the drive shaft of the reel motor 7 and the input shaft of the hose reel 8, so that the reel motor 7 can drive the hose reel 8 to rotate to complete the hose winding and unwinding operation.

[0024] When the controller 1 energizes the electromagnetic clutch 6, the electromagnetic clutch 6 disengages, causing the reel motor 7 to separate from the hose reel 8, allowing the hose reel 8 to rotate freely. At this time, the hose can be manually pulled to reel in and out. Alternatively, the hose connector can be connected to a fire hydrant or other object, and the mobile chassis 4 can be reversed; as the mobile chassis 4 reverses, the hose can be freely released.

[0025] In some embodiments, the automatic hose reel device further includes a remote controller 3, which is wirelessly connected to the controller 1.

[0026] In some embodiments, the controller 1 is connected to a display 2 for displaying load alarms of the reel motor 7.

[0027] In some embodiments, the reel motor 7 is connected to a load detection device 10 for detecting the load of the reel motor 7 and a load adjustment device 9 for adjusting the load of the reel motor 7, and both the load detection device 10 and the load adjustment device 9 are connected to the controller 1.

[0028] When the chassis 4 moves forward, the controller 1 automatically de-energizes and engages the electromagnetic clutch 6. The reel motor 7 drives the hose reel 8 to automatically wind up the hose at a rated speed and constant pressure, where the rated speed is greater than the maximum forward speed of the chassis 4. During hose winding, the winding pressure collected by the load detection device 10 is transmitted to the controller 1 in real time. When the actual winding pressure exceeds the set constant pressure, i.e., when the load on the reel motor 7 exceeds the load threshold, the controller 1 controls the load adjustment device 9 to open, causing the winding pressure of the reel motor 7 to return to below the set pressure.

[0029] In some embodiments, the reel motor 7 is a hydraulic motor, the load detection device 10 is an oil pressure sensor installed in the hydraulic drive circuit of the reel motor 7, and the load adjustment device 9 is an overflow regulating valve installed in the hydraulic drive circuit of the reel motor 7.

[0030] During hose reel winding, the reeling pressure collected by the hydraulic pressure sensor is transmitted to controller 1 in real time. When the actual reeling pressure exceeds the set constant pressure, i.e., when the hydraulic pressure in the hydraulic drive circuit of the hydraulic motor exceeds the pressure threshold, controller 1 controls the overflow regulating valve to open, causing the reeling pressure to return to below the set pressure.

[0031] In some embodiments, the reel motor 7 is an electric motor, the load detection device 10 is a current sensor installed in the power supply circuit of the reel motor 7, and the load adjustment device 9 is a voltage regulator installed in the power supply circuit of the reel motor 7.

[0032] During hose reel winding, the current sensor collects the winding pressure data and transmits it to controller 1 in real time. When the actual winding pressure exceeds the set constant pressure, i.e., when the current in the electric motor's power supply circuit exceeds the current threshold, controller 1 controls the pressure regulator to open, causing the winding pressure to return to below the set pressure.

[0033] Control principle of automatic hose reel in / out device:

[0034] After the device is powered on, controller 1 determines whether the remote control 3's heartbeat is normal by whether it can receive the correct heartbeat information on the CAN bus. Under normal circumstances, the bit corresponding to the remote control 3's heartbeat changes from 0 to 1 every 200 milliseconds. When controller 1 continuously receives 0 / 1 transitions in the heartbeat signal, and the period is stable at around 200 milliseconds, controller 1 can determine that the remote control 3's heartbeat is normal. If controller 1 does not detect any change in the heartbeat signal within 3 seconds, controller 1 determines that the remote control 1's heartbeat is lost. If the remote control 3's heartbeat is abnormal, an alarm is first triggered on display 2, and the remote control 3's action signal is cut off. If the remote control 3's heartbeat is normal, the mode selected by the current operator is identified.

[0035] When manual mode is selected, it is suitable for operations involving the handling and movement of hoses. In this mode, controller 1 de-energizes and engages the electromagnetic clutch 6, and the output shaft of the reel motor 7 engages with the rotating shaft of the hose reel 8. The movement of the chassis 4 and the hose reel 8 are independently controlled, with no logical connection between them. The operator can then freely control the reel-up and unreel-down actions of the hose reel 8 and the movement of the chassis 4 via remote control 3.

[0036] When automatic mode is selected, it is suitable for simultaneous laying or winding of hoses. Controller 1 determines the operator's intention based on remote controller 3 and executes the corresponding output.

[0037] When the chassis 4 moves forward, the controller 1 automatically de-energizes and engages the electromagnetic clutch 6. The reel motor 7 drives the hose reel 8 to automatically wind up the hose at a rated speed and constant pressure, where the rated speed is greater than the maximum forward speed of the chassis 4. During hose winding, the winding pressure collected by the hydraulic pressure sensor is transmitted to the controller 1 in real time. When the actual winding pressure exceeds the set constant pressure, i.e., when the hydraulic pressure in the hydraulic drive circuit of the reel motor 7 exceeds the pressure threshold, the controller 1 controls the overflow regulating valve to open, so that the winding pressure returns to below the set pressure. If the actual winding pressure continues to exceed the set pressure for more than three consecutive seconds, it is determined that the winding pressure exceeds the second pressure threshold, triggering the machine's movement limitation. The controller 1 then controls the remote control 3 and the display 2 to issue a "winding pressure too high" alarm.

[0038] When the traveling chassis 4 is reversed, the controller 1 energizes and disengages the electromagnetic clutch 6, allowing the hose reel 8 to rotate freely. At this time, the hose can be manually pulled to reel it in and out. Alternatively, the hose connector can be connected to a fire hydrant or other object, and the traveling chassis 4 can be reversed; as the chassis 4 reverses, the hose will be freely released.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic hose reel device, characterized in that, include: The system includes a controller (1), a walking chassis (4), and a hose reel system (5) fixed on the walking chassis (4). The hose reel system (5) includes a reel motor (7), a hose reel (8), and an electromagnetic clutch (6) electrically connected to the controller (1). The electromagnetic clutch (6) is connected between the reel motor (7) and the hose reel (8) and is used to engage or disengage the drive shaft of the reel motor (7) from the input shaft of the hose reel (8).

2. The automatic hose reel of claim 1, wherein, The reel motor (7) is connected to a load detection device (10) for detecting the load of the reel motor (7) and a load adjustment device (9) for adjusting the load of the reel motor (7), and both the load detection device (10) and the load adjustment device (9) are connected to the controller (1).

3. The automatic hose reel of claim 2, wherein, The reel motor (7) is a hydraulic motor, the load detection device (10) is an oil pressure sensor installed in the hydraulic drive circuit of the reel motor (7), and the load adjustment device (9) is an overflow regulating valve installed in the hydraulic drive circuit of the reel motor (7).

4. The automatic hose reel of claim 2, wherein, The reel motor (7) is an electric motor, the load detection device (10) is a current sensor installed in the power supply circuit of the reel motor (7), and the load adjustment device (9) is a voltage regulator installed in the power supply circuit of the reel motor (7).

5. The automatic hose reel in / out device according to claim 2, characterized in that, The controller (1) is connected to a display (2) for displaying the load alarm of the reel motor (7).

6. The automatic hose reel of claim 2, wherein, The automatic hose reel device also includes a remote controller (3), which is wirelessly connected to the controller (1).

7. The automatic hose reel of claim 1, wherein, The walking chassis (4) includes a chassis frame, a drive wheel, a tension wheel, a track roller, a support roller, a track, and a drive motor; the drive wheel is located at one end of the chassis frame, the tension wheel is located at the other end of the chassis frame, the support roller is located below the chassis frame, the track roller is located above the chassis frame, and the track is located outside the drive wheel, the tension wheel, the support roller, and the track roller.

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