Modularized self-propelled large-flow trailer fire monitor device

Abstract

The invention discloses a modularized self-propelled large-flow trailer fire monitor device, and belongs to the technical field of fire rescue facilities. Comprising a frame platform; the foam power unit is arranged on the frame platform; a jet liquid introduction mechanism; a main fire monitor seat rotating mechanism and a main fire monitor; a traveling mechanism; the arm pulling device is characterized in that the walking mechanism comprises at least one pair of basic walking wheels, a pair of folding and unfolding type or lifting type supporting wheels, a pair of basic walking wheel driving devices and a pair of basic walking wheel lifting action devices; the pair of basic walking wheels are arranged on the pair of basic walking wheel driving devices respectively and hinged to the front side and the rear side of the middle of the frame platform in the length direction through the pair of basic walking wheel driving devices and the pair of basic walking wheels. The structure has the advantages that recoil generated when a fire monitor sprays is fully resisted, the problem of backward sliding of the frame platform is completely eradicated, interference of extreme situations of a disaster relief site on the pull arm hook support is avoided, good conciseness of the pull arm hook support is facilitated, and the long-lasting service life is guaranteed.

Description

Technical Field

[0001] This invention belongs to the technical field of fire rescue facilities, specifically relating to a modular self-propelled high-flow trailer fire monitor device. Background Technology

[0002] The aforementioned concept of "high flow rate" is usually relative to ordinary pump trucks. If a pump truck's rated flow rate is much higher than the conventional rate, such as exceeding 60-80 L / s, then it is classified as a high flow rate vehicle. For example, the rated flow rate of a pump fire truck is much higher than the conventional 60-80 L / s; another example is the high flow rate foam / water cannon of an elevated fire truck, with a flow rate ≥160 L / s, to distinguish it from the conventional 100 L / s cannon; furthermore, industrial and petrochemical fire trucks, referring to international standards, can have a flow rate of up to 189 L / s, which is a typical characteristic of high flow rate fire trucks.

[0003] The "tracked fire-fighting emergency rescue device" recommended in Chinese patent application publication number CN113209523A compensates for the shortcomings of the "emergency rescue water cannon device" described in CN110613908A. It features a hook arm bracket with a hook (referred to in the patent as a "hook arm ring") positioned centrally on the upper part of the longitudinal plate at the end of the chassis, slightly above the engine. This improves the efficiency of loading the emergency rescue water cannon device onto the fire truck and shortens the time required for pre-rescue preparation. However, the hook arm bracket remains fixed between its active and inactive states, always in a vertical position. This poses a risk of accidental snagging and obstruction by objects such as fallen utility poles, collapsed building beams, pipes, doors, and windows in complex disaster sites such as ruins and low, confined spaces. Furthermore, in its non-active state, it affects the simplicity and aesthetics of the emergency rescue water cannon device. The hook arm bracket may also deform or be damaged due to continuous stress or accidental impact.

[0004] On the other hand, the aforementioned CN113209523A uses a tracked walking mechanism. Because tracked vehicles rely on differential speed steering between the two tracks, they have a large turning radius and can cause shear damage to the ground. In addition, tracks are relatively heavy and are very easy to get caught in gravel, wire, and debris, leading to jamming and damage.

[0005] If the aforementioned boom hook bracket is designed to be erected during use and lowered when not in use, the aforementioned technical problems can be eliminated. In particular, if the aforementioned tracked walking mechanism is replaced with a wheeled walking mechanism, while this eliminates many of the shortcomings of the tracked walking mechanism to some extent, the use of wheels significantly increases the center of gravity of the chassis platform. Furthermore, the high-energy fire monitor mounted on the chassis generates a strong recoil force during spraying. Without proper positioning measures for the chassis platform, this recoil force can cause the platform to slide backward. Theoretically, placing foldable support legs at appropriate locations on the chassis platform to counteract the recoil force would be beneficial. However, known support legs are external, additional devices, separate from the walking system such as wheels, thus creating structural redundancy. In addition, the support legs provide support through several discrete points, such as support leg feet, forming a multi-point support system. The stability of the support system is highly dependent on the rigidity of the support legs, the flatness and hardness of the ground, and the uniformity of force distribution on each support leg. In soft, uneven ground, the support legs are prone to sinking or uneven force distribution, which can even cause the chassis platform to sway. Based on the above, finding a reasonable balance between using wheels in the running gear and lowering the center of gravity of the chassis platform has become a pressing technical problem, as only in this way can the advantages of both tracked and wheeled running gear be combined.

[0006] The applicant conducted a detailed and extensive search, but no inspiration for solving the above-mentioned technical problems was found in the publicly available Chinese and foreign patent and non-patent literature to date. The technical solution to be introduced below was developed in this context. Summary of the Invention

[0007] The objective of this invention is to provide a modular self-propelled high-flow-rate trailer fire monitor device that helps to lower the vehicle platform to the ground level by raising the wheels of the walking mechanism structure during the operation of the fire monitor, thereby effectively resisting the recoil force generated by the fire monitor spray and preventing the vehicle platform from slipping backward. It also helps to avoid interference of the boom hook bracket with extreme conditions at the disaster site during travel in complex environments at the rescue site, and it is beneficial to ensure the boom hook bracket has good simplicity and a long service life.

[0008] The present invention achieves its objective by providing a modular self-propelled high-flow-rate trailer fire monitor device, comprising a chassis platform; a foam power unit disposed on the chassis platform; a spray liquid introduction mechanism disposed at the right end of the chassis platform and connected to the foam power unit; a main fire monitor base rotation mechanism and a main fire monitor, the main fire monitor base rotation mechanism being connected to the spray liquid introduction mechanism, and the main fire monitor being connected to the main fire monitor base rotation mechanism; a traveling mechanism connected to the side of the chassis platform along its length; and a boom hook bracket disposed on the chassis platform at a position to the left of the foam power unit. The traveling mechanism comprises at least one pair of basic traveling wheels, one pair of retractable or lifting support wheels, and one pair of basic traveling wheels. The vehicle platform includes a wheel drive unit and a pair of basic wheel lifting devices. The pair of basic wheels are rotatably mounted on the pair of basic wheel drive units and are hinged to the front and rear sides of the middle section of the frame platform along its length. The pair of basic wheel lifting devices are respectively located on the front and rear sides of the frame platform and are respectively hinged to the pair of basic wheel drive units. A pair of retractable or lifting support wheels are located on the front and rear sides of the left end of the frame platform in a front-rear corresponding state. On the frame platform, between the foam power unit and the hook arm support, there is a hook arm support supine drive mechanism connected to the hook arm support for changing the posture of the hook arm support. The right end of the hook arm support is hinged to the frame platform.

[0009] In a specific embodiment of the present invention, the walking mechanism further includes a pair of additional walking wheels, a pair of additional walking wheel drive devices, and a pair of additional walking wheel lifting devices. The pair of additional walking wheels, while maintaining a distance from the pair of basic walking wheels, are rotatably mounted on the pair of additional walking wheel drive devices, corresponding to the right side of the pair of basic walking wheels. The pair of additional walking wheel drive devices, together with the pair of additional walking wheels, are respectively hinged to the front and rear sides of the frame platform along its length. The pair of additional walking wheel lifting devices are respectively mounted on the front and rear sides of the frame platform and respectively hinged to the additional walking wheel drive devices. The diameter of the pair of additional walking wheels is the same as the diameter of the pair of basic walking wheels, the structure of the pair of additional walking wheel drive devices is the same as the structure of the pair of basic walking wheel drive devices, and the structure of the pair of additional walking wheel lifting devices is the same as the structure of the pair of basic walking wheel lifting devices.

[0010] In another specific embodiment of the present invention, when the pair of support wheels has a retractable structure, the pair of support wheels are rotatably mounted on the free ends of a pair of support wheel frames via a pair of support wheel axles, and the hinged ends of the support wheel frames are respectively hinged to the front and rear sides of the left end of the vehicle frame platform via support wheel frame hinge pins; when the pair of support wheels has a lifting structure, the pair of support wheels are respectively mounted on a pair of support wheel drive devices, and the pair of support wheel drive devices are respectively hinged to the front and rear sides of the vehicle frame platform, and are hinged to them by a pair of support wheel lifting devices, and the pair of support wheel lifting devices are respectively mounted on the vehicle frame platform. The platform is located on the front and rear sides; wherein, when the pair of support wheels is of a retractable structure, the diameter of the pair of support wheels is smaller than the diameter of the pair of basic traveling wheels, and when the pair of support wheels is of a lifting structure, the diameter of the pair of support wheels is the same as the diameter of the pair of basic traveling wheels, and the structures of the pair of support wheel drive devices and the pair of support wheel lifting devices are the same as the structures of the pair of basic traveling wheel drive devices and the pair of basic traveling wheel lifting devices, respectively; a main fire monitor muzzle tilt angle adjustment device for tilting or raising the muzzle of the main fire monitor is provided on the main fire monitor barrel section.

[0011] In another specific embodiment of the present invention, a storage battery and a hydraulic station are provided on the vehicle frame platform; each of the pair of basic walking wheel drive devices includes a vehicle frame platform articulated arm, a hydraulic motor and a reduction gearbox. The vehicle frame platform articulated arm is hinged to the front and rear sides of the middle part of the vehicle frame platform in the length direction through the vehicle frame platform articulated arm shaft. The hydraulic motor is connected to the hydraulic station oil circuit through oil pipes. The reduction gearbox is driven by the hydraulic motor and is fixed to the inward side of the vehicle frame platform articulated arm together with the hydraulic motor. The pair of basic walking wheels are fixed to the reduction gearbox power output shaft of the reduction gearbox. The foam power unit is electrically connected to the electrical control box and charges the storage battery. The storage battery is electrically connected to the electrical control box and the hydraulic station. The electrical control box is mounted on the main fire monitor and is electrically controlled by the boom hook bracket supine drive mechanism and the pair of basic walking wheel lifting devices through solenoid valves.

[0012] In another specific embodiment of the present invention, each of the pair of basic walking wheel lifting devices includes a cover, a frame platform fixing frame, a frame platform articulated arm drive cylinder, a swing arm, a left spring rod, a right spring rod, a spring, and a swing arm hinge lug. The frame platform fixing frame is fixed to the frame platform at a position corresponding to the left side of the frame platform articulated arm. The cover is placed outside the frame platform fixing frame and fixed to the frame platform. The left end hinge lug of the frame platform articulated arm drive cylinder is hinged to the upper end of the swing arm via a cylinder body hinge lug pin. The right end cylinder rod of the frame platform articulated arm drive cylinder is connected via a cylinder rod... The hinge pin is hinged to the hinge arm of the vehicle frame platform. The left end of the left spring rod is hinged to the lower end of the swing arm through the left spring rod pin. The right end of the right spring rod is hinged to the right spring rod pin hinge lug formed on the vehicle frame platform fixing frame through the right spring rod pin. The left end of the spring is sleeved on the left spring rod, and the right end of the spring is sleeved on the right spring rod. The swing arm hinge lug is formed on the vehicle frame platform fixing frame. The middle part of the swing arm is hinged to the swing arm hinge lug through the swing arm hinge pin. The electrical control box is electrically connected to the oil inlet and return solenoid valves on the oil inlet and return oil lines of the hydraulic cylinder driving cylinder of the vehicle frame platform hinge arm.

[0013] In another specific embodiment of the present invention, a frame platform articulated arm hinge lug extends on the frame platform articulated arm and at a position corresponding to the cylinder column, and the cylinder column is hinged to the frame platform articulated arm hinge lug via a cylinder column hinge pin.

[0014] In a further specific embodiment of the present invention, the boom hook support supine drive mechanism includes a boom hook support supine drive cylinder, a traction support, a traction support adjustment seat, and a pair of traction support reinforcing support rods. The right end of the boom hook support supine drive cylinder is hinged to a cylinder hinge pin seat via a cylinder hinge pin. The cylinder hinge pin seat is fixed at a position corresponding to the position between the foam power unit and the boom hook support, and at the center position of the left end of the vehicle frame platform facing upward. The boom hook support supine drive cylinder column faces left and is hinged to the right end of the boom hook support facing upward via a hinge pin at the end of the cylinder column. The traction support adjustment seat is fixed to the right end face of the boom hook support. The cross-sectional shape of the traction support adjustment seat is... The traction bracket is U-shaped, and corresponding adjustment holes are provided at intervals on the walls of the traction bracket adjustment seats on both the front and rear sides. A pair of traction bracket reinforcing support rods are parallel to each other, and each of their left ends is hinged to the arm hook bracket via a pin, while each of their right ends is hinged to the traction bracket reinforcing support rod hinge seat on the vehicle frame platform via a hinge pin. A traction bracket adjustment hole is provided at the right end of the traction bracket. The position of the traction bracket on the traction bracket adjustment seat is adjusted by the traction bracket adjustment pin at the position corresponding to the traction bracket adjustment hole and the traction bracket adjustment hole. A traction connector hole is provided at the right end of the traction bracket. The electrical control box is electrically connected to the oil cylinder inlet and outlet solenoid valve on the oil cylinder inlet and outlet oil pipeline of the arm hook bracket supine drive cylinder.

[0015] In a further specific embodiment of the present invention, a cylinder pin end hinge pin seat is fixed on the upward-facing side of the right end of the pull arm hook bracket at a position corresponding to the cylinder pin end hinge pin. The cylinder pin end hinge pin is hinged to the cylinder pin end hinge pin seat. A pull arm hook adjusting beam is fixed at the middle of the left end of the pull arm hook bracket. Pull arm hook position adjusting holes are provided at intervals along the length of the pull arm hook adjusting beam. A pull arm hook is provided on the pull arm hook adjusting beam by means of a pull arm hook adjusting plate. The pull arm hook is adjusted by means of a pin at the position corresponding to the pull arm hook position adjusting hole by the pull arm hook adjusting plate.

[0016] In yet another specific embodiment of the present invention, the main fire monitor includes a main tube, which is connected and communicates with the injection fluid introduction mechanism; a pair of auxiliary fire monitors are also provided on the vehicle platform, each of which is equipped with an auxiliary fire monitor adjustment handwheel and is connected by an auxiliary fire monitor supply pipe, and the auxiliary fire monitor supply pipe is connected and communicates with the main tube of the main fire monitor through an auxiliary fire monitor supply pipe connecting pipe; a flip-up tailplate is hinged to the right end face of the vehicle platform, and a taillight and license plate are provided on the right side of the flip-up tailplate when it is in the upright state; the injection fluid introduction mechanism includes a first injection fluid introduction pipe, a second injection fluid introduction pipe and a third injection fluid introduction pipe distributed from front to back, one end of the first, second and third injection fluid introduction pipes is connected and communicates with the main tube, and the other end is led to the injection fluid supply source through a pipeline in the use state, and the injection fluid supply source supplies water as the injection fluid.

[0017] In yet another specific embodiment of the invention, a mudguard is fixed on the upper part of the frame platform articulated arm, the mudguard extending from the left side of the basic travel wheel corresponding to the upper part of the basic travel wheel, and the cross-sectional shape of the mudguard is C-shaped.

[0018] The advantages of the technical solution provided by this invention are as follows: At the fire and rescue site, during the spraying of fire-fighting liquid by the main fire monitor, the lifting mechanism of the walking mechanism lifts the pair of basic walking wheels, along with the driving device, and simultaneously retracts or raises the support wheels. This allows the vehicle platform to descend to a level directly in contact with the ground, effectively resisting the recoil generated by the main fire assembly's spray and preventing the platform from slipping backward. Furthermore, a horizontal drive mechanism for the boom hook support, capable of changing its posture, is installed on the vehicle platform between the foam power unit and the boom hook support. This allows the boom hook support to remain in a horizontal position during rescue operations, preventing interference from extreme conditions at the rescue site, maintaining overall simplicity, and ensuring a long service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the first embodiment of the present invention; Figure 2 for Figure 1 A detailed structural diagram of the lifting mechanism for a pair of basic traveling wheels of the walking mechanism shown; Figure 3 for Figure 1 A schematic diagram showing the view from the left side; Figure 4 for Figure 1 Top view; Figure 5 for Figure 1 The diagram shown illustrates the hook arm bracket in its upright position. Figure 5a for Figure 5 A detailed structural diagram of the pull arm hook bracket and its supine drive mechanism, viewed from the right side. Figure 6 for Figure 1 The diagram shows the tailplate flipped to a horizontal position. Figure 7 The image shows the invention being supported by the towing arm of a fire truck. Figure 5 The diagram shown illustrates the lifting arm hook bracket being pulled onto the fire truck platform when it is in a vertical position. Figure 8 This is a schematic diagram of the second embodiment of the present invention; Figure 9 This is a schematic diagram of the third embodiment of the present invention.

[0020] In the diagram: 1. Chassis platform, 11. Battery, 12. Hydraulic station, 13. Tilting tailgate; 2. Foam power unit, 21. Oil tank; 3. Injection fluid introduction mechanism, 31. First injection fluid inlet pipe, 32. Second injection fluid inlet pipe, 33. Third injection fluid inlet pipe; 4. Main fire monitor base rotation mechanism; 5. Main fire monitor, 51. Main monitor barrel, 52. Main fire monitor muzzle tilt adjustment device, 53. Muzzle; 6. Traveling mechanism, 61. Basic travel wheel, 62. Support wheel, 621. Support wheel frame, 6211. Support wheel axle, 6212. Support wheel frame hinge pin, 6213. Support wheel frame operating handle, 622. Support wheel drive device, 623. Support wheel lifting device, 63. Basic travel wheel drive device, 631. Chassis platform articulated arm, 6311. 632. Frame platform articulated arm shaft; 633. Hydraulic motor; 6331. Gearbox; 6331. Gearbox power output shaft; 634. Frame platform articulated arm articulated lug; 64. Basic travel wheel lifting device; 641. Cover; 642. Frame platform fixing frame; 6421. Spring rod right pin hinge lug; 643. Frame platform articulated arm drive cylinder; 6431. Cylinder column; 64311. Cylinder column hinge pin; 6432. Cylinder block hinge lug pin; 644. Swing arm; 6441. Swing arm hinge pin; 645a. Left spring rod; 645b. Right spring rod; 6451. Left spring rod pin; 6452. Right spring rod pin; 646. Spring; 647. Swing arm articulated lug; 65. Additional travel wheel; 66. 67. Added walking wheel drive device; 68. Added walking wheel lifting device; 7. Mudguard; 7. Hook arm bracket; 71. Hydraulic cylinder column end hinge pin seat; 72. Hook arm hook; 721. Hook arm hook adjusting plate; 73. Hook arm hook bracket hinge; 74. Hook arm hook adjusting beam; 741. Hook arm hook position adjusting hole; 8. Hook arm hook bracket supine drive mechanism; 81. Hook arm hook bracket supine drive cylinder; 8111. Hook arm hook bracket supine drive cylinder column; 8111. Hydraulic cylinder column end hinge pin; 812. Cylinder body hinge pin; 8121. Cylinder body hinge pin seat; 82. Traction bracket; 821. Traction connector hole; 83. Traction bracket adjusting seat; 831. Traction bracket adjusting hole; 84. Traction bracket reinforcing support rod; 841. 842. Hinge seat for reinforcing support rod of traction bracket; 9. Pin; 10. Electrical control box; 10. Auxiliary fire monitor; 101. Liquid supply pipe for auxiliary fire monitor; 1011. Connecting pipe for liquid supply pipe for auxiliary fire monitor; 102. Adjusting handwheel for auxiliary fire monitor; 20. Ground floor; 30. Fire truck; 301. Towing arm of fire truck. Detailed Implementation

[0021] In order to better understand the technical essence and beneficial effects of the present invention, the applicant provides a detailed description below by way of embodiments. However, the description of the embodiments is not intended to limit the present invention. Any formal but not substantive equivalent transformations made based on the concept of the present invention should be considered within the scope of the present invention.

[0022] In the following description, all directional or orientational concepts involving up, down, left, right, front, and back are based on Figure 1 The current position is used as an example and therefore should not be construed as a specific limitation on the technical solution provided by this invention.

[0023] Example 1: Please refer to Figures 1 to 6 The diagram shows a vehicle platform 1 (also known in the industry as a "vehicle chassis" or "vehicle floor"); a foam power unit 2, which serves as a jetting fluid power system, is shown and is mounted on the aforementioned vehicle platform 1; a jetting fluid introduction mechanism 3 is shown, which is located at the right end of the aforementioned vehicle platform 1 and is connected to the aforementioned foam power unit 2; a main fire monitor base rotation mechanism 4 and a main fire monitor 5 are shown, with the main fire monitor base rotation mechanism 4 connected to the aforementioned jetting fluid introduction mechanism 3, and the main fire monitor 5 connected to the main fire monitor base rotation mechanism 4; a traveling mechanism 6 is shown, which is connected to the side of the aforementioned vehicle platform 1 along its length; and a boom hook bracket 7 is shown, which is mounted on the aforementioned vehicle platform 1 at a position to the left of the aforementioned foam power unit 2. The aforementioned foam power unit 2 is connected to a foam source via pipeline and supplies foam introduced from the foam source to the spray liquid introduction mechanism 3, so that the foam introduced from the foam source is mixed with the spray liquid introduced by the spray liquid introduction mechanism 3 and supplied to the main fire monitor 5 and the auxiliary fire monitor 10. The aforementioned foam source may be a foam storage tank on the rescue device itself, a foam liquid transport vehicle / supply vehicle, etc.

[0024] The applicant needs to clarify that since the relationships, specific structures, and working mechanisms of the aforementioned main fire monitor base rotation mechanism 4, main fire monitor 5, jet liquid introduction mechanism 3, and foam power unit 2 are conventional technologies, for example, see Chinese invention patent application publication number CN113209523A, the applicant will not elaborate further below.

[0025] As a key technical point of the technical solution provided by the present invention: the aforementioned walking mechanism 6 includes at least a pair of basic walking wheels 61, a pair of retractable support wheels 62, and a pair of basic walking wheel drive devices 63. Figure 4(Shown) and a pair of basic walking wheel lifting devices 64, a pair of basic walking wheels 61 are respectively rotatably mounted on a pair of basic walking wheel drive devices 63 and are hinged to the front and rear sides of the middle of the aforementioned frame platform 1 in the length direction by the pair of basic walking wheel drive devices 63 and the pair of basic walking wheels 61. A pair of basic walking wheel lifting devices 64 are respectively mounted on the front and rear sides of the aforementioned frame platform 1 and are respectively hinged to the aforementioned pair of basic walking wheel drive devices 63. A pair of retractable support wheels 62 (also called "support-type walking wheels" or "walking support wheels") are mounted on the front and rear sides of the left end in the length direction of the aforementioned frame platform 1 in a state of corresponding front and rear to each other. On the aforementioned frame platform 1 and at the position between the aforementioned foam power unit 2 and the aforementioned pull arm hook bracket 7, a pull arm hook bracket supine drive mechanism 8 connected to the pull arm hook bracket 7 for changing the posture of the pull arm hook bracket 7 is provided. The right end of the aforementioned pull arm hook bracket 7 is hinged to the frame platform 1 by a pull arm hook bracket hinge pin. Specifically, a hook arm bracket hinge pin seat is pre-fixed on the frame platform 1, and then the right end of the hook arm bracket 7 is hinged to the hook arm bracket hinge pin seat by the aforementioned hook arm bracket hinge pin.

[0026] Depend on Figure 1 As shown, the aforementioned pair of support wheels 62 are rotatably mounted on the free ends (also called the ends) of the pair of support wheel frames 621 via a pair of support wheel shafts 6211, and the support wheel frame hinged ends of the pair of support wheel frames 621 are respectively hinged to the front and rear sides of the left end of the aforementioned vehicle frame platform 1 via support wheel frame hinge pins 6212.

[0027] Since the aforementioned pair of support wheels 62 in this embodiment are retractable support wheels, their diameters are smaller than the diameters of the pair of basic traveling wheels 61. The difference is compensated by the support wheel frame 621. Furthermore, because they are retractable support wheels, each of the aforementioned pair of support wheel frames 621 is preferably provided with a support wheel frame operating handle 6213. Firefighters can operate the support wheel frame operating handle 6213 to position the pair of support wheels 62 as described above. Figure 1 , Figure 5 and Figure 6 The state shown is in contact with the ground 20, thereby cooperating with the aforementioned pair of basic walking wheels 62 to meet the requirements of the present invention for walking on the ground. Walking includes moving forward, backward, turning left or right, and conversely, retracting. Of course, the retraction or extension of the aforementioned pair of support wheel frames 621 can also be achieved by a hydraulic cylinder. When a hydraulic cylinder is used, the aforementioned support wheel frame operating handle 6213 can be omitted.

[0028] The main fire monitor 5 is equipped with a muzzle tilting device 52 for tilting or raising the muzzle 53 of the main fire monitor 5.

[0029] Depend on Figure 4 As shown, a battery 11 and a hydraulic station 12 are installed on the aforementioned chassis platform 1; each of the aforementioned pair of basic walking wheel drive devices 63 includes a chassis platform articulated arm 631, a hydraulic motor 632, and a reduction gearbox 633. The chassis platform articulated arm 631 is hinged to the front and rear sides of the middle part of the aforementioned chassis platform 1 in the length direction via the chassis platform articulated arm shaft 6311. The hydraulic motor 632 is connected to the hydraulic station 12 via oil pipes. The reduction gearbox 633 is driven by the hydraulic motor 632, and the reduction gearbox 633, together with the hydraulic motor 632, is connected to the aforementioned chassis. The platform articulated arm 631 is fixed to the inward-facing side. The aforementioned pair of basic walking wheels 61 are respectively fixed to the gearbox power output shaft 6331 of the gearbox 633. The aforementioned foam power unit 2 is electrically connected to the electrical control box 9 and charges the storage battery 11. The storage battery 11 is electrically connected to the electrical control box 9 and the hydraulic station 12. The electrical control box 9 is mounted on the aforementioned main fire monitor 5. The electrical control box 9 is electrically connected to the aforementioned boom hook bracket supine drive mechanism 8 and the pair of basic walking wheel lifting devices 64 through solenoid valves.

[0030] Please pay attention. Figure 2 Each of the aforementioned pair of basic wheel lifting devices 64 includes a housing 641, a frame platform fixing frame 642, a frame platform articulated arm drive cylinder 643, a swing arm 644, a left spring rod 645a, a right spring rod 645b, a spring 646, and a swing arm hinge lug 647. The frame platform fixing frame 642 is fixed to the frame platform 1 at a position corresponding to the left side of the aforementioned frame platform articulated arm 631. The housing 641 covers the frame platform fixing frame 642 and is fixed to the frame platform 1. The left end hinge lug of the frame platform articulated arm drive cylinder 643 is hinged to the upper end of the swing arm 644 via a cylinder body hinge lug pin 6432. The right end cylinder column 6431 of the frame platform articulated arm drive cylinder 643 is hinged to the aforementioned... The frame platform articulation arm 631 is hinged. The left end of the left spring rod 645a is hinged to the lower end of the swing arm 644 via the left spring rod pin 6451. The right end of the right spring rod 645b is hinged to the right spring rod pin hinge lug 6421 formed on the frame platform fixing frame 642 via the right spring rod pin 6452. The left end of the spring 646 is sleeved on the left spring rod 645a, and the right end of the spring 646 is sleeved on the right spring rod 645b. The swing arm hinge lug 647 is formed on the frame platform fixing frame 642. The middle part of the aforementioned swing arm 644 is hinged to the swing arm hinge lug 647 via the swing arm hinge pin 6441. The aforementioned electrical control box 9 is electrically connected to the cylinder inlet and return solenoid valves on the cylinder inlet and return oil lines of the frame platform articulation arm drive cylinder 643.

[0031] In this embodiment, the aforementioned pair of basic walking wheel drive devices 63 and pair of basic walking wheel lifting devices 64 are located to the left of the pair of basic walking wheels 61. However, if, for the purpose of circumventing the present invention, the positions of the pair of basic walking wheel drive devices 63 and pair of basic walking wheel lifting devices 64 are changed to the right of the pair of basic walking wheels 61, it should be considered as not exceeding the scope of the technical content disclosed in the present invention. In particular, in the absence of the additional walking wheel 65 with the structure of Embodiments 2 and 3, the aforementioned pair of basic walking wheel drive devices 63 and pair of basic walking wheel lifting devices 64 can be moved to the right of the pair of basic walking wheels 61.

[0032] With a pair of basic walking wheels 61 and a pair of support wheels 62 in contact with the ground, the vehicle is in a walkable state. Under the control of the aforementioned electrical control box 9, the hydraulic motor 632 operates, driving the reduction gearbox 633, which in turn drives the pair of basic walking wheels 61 to rotate, thereby enabling movement. During rescue operations, such as during the fire extinguishing process of the main fire monitor 5, in order to resist the recoil force from the main fire monitor 5, a pair of basic walking wheel lifting devices 64 are activated. Specifically, under the control of the solenoid valve on the pipeline connected to the oil pipe of the hydraulic cylinder 643 by the electrical control box 9, the hydraulic cylinder 643 is activated, the hydraulic cylinder column 6431 retracts (i.e. retracts into the cylinder body), and the hydraulic cylinder column 6431 pulls the left side of the frame platform articulation arm 631, causing the frame platform articulation arm 631 to rotate counterclockwise around the frame platform articulation arm axis 6311, thereby driving the basic walking wheels 61 to rise and leave the ground 20. At this time, the frame platform 1 is pressed against the ground 20 to resist the recoil force from the main fire monitor 5.

[0033] During the traction process, when the basic travel wheel 61 encounters a bump, the basic travel wheel 61 transmits the vibration to the hydraulic cylinder 643 through the frame platform articulated arm 631, and the hydraulic cylinder 643 transmits the vibration to the spring 646 through the swing arm 644, and the spring 646 absorbs the vibration.

[0034] Since a pair of basic travel wheels 61 includes one at the front and one at the rear, the aforementioned hydraulic motor 632 correspondingly includes one at the front and one at the rear. Therefore, when both the front and rear hydraulic motors 632 rotate clockwise simultaneously, the wheels drive the chassis platform 1 to the left; when both hydraulic motors 632 rotate counter-clockwise simultaneously, the wheels drive the chassis platform 1 to the right; when the front hydraulic motor 632 rotates clockwise and the rear hydraulic motor 632 rotates counter-clockwise, the wheels cause the chassis platform 1 to turn backward; when the rear hydraulic motor 632 rotates clockwise and the front hydraulic motor 632 rotates counter-clockwise, the wheels cause the chassis platform 1 to turn forward.

[0035] Depend on Figure 2 As shown, a frame platform articulation arm hinge lug 634 extends on the aforementioned frame platform articulation arm 631 and at a position corresponding to the aforementioned cylinder pin 6431. The aforementioned cylinder pin 6431 is hinged to the frame platform articulation arm hinge lug 634 via a cylinder pin hinge pin 64311.

[0036] Please pay attention. Figure 5a as well as Figure 6 The aforementioned boom hook support supine drive mechanism 8 includes a boom hook support supine drive cylinder 81, a traction bracket 82, a traction bracket adjustment seat 83, and a pair of traction bracket reinforcing support rods 84. The right end of the cylinder body of the boom hook support supine drive cylinder 81 is hinged to the cylinder body hinge pin seat 8121 via a cylinder body hinge pin 812. The cylinder body hinge pin seat 8121 is fixed at the centered position corresponding to the position between the aforementioned foam power unit 2 and the aforementioned boom hook support 7, and on the left-facing upward side of the aforementioned vehicle frame platform 1. The boom hook support supine drive cylinder column 811 of the boom hook support supine drive cylinder 81 faces left and is hinged to the right-facing upward side of the aforementioned boom hook support 7 via a cylinder column end hinge pin 8111. The traction bracket adjustment seat 83 is welded and fixed to the right end face of the boom hook support 7. The cross-sectional shape of the traction bracket adjustment seat 83 is U-shaped. The traction bracket 82 has a shape, and corresponding traction bracket adjustment holes 831 are provided at intervals on the walls of the traction bracket adjustment seats on both the front and rear sides. A pair of traction bracket reinforcing support rods 84 are parallel to each other, and each of the left ends is hinged to the arm hook bracket 7 by a pin 842, while each of the right ends is hinged to the traction bracket reinforcing support rod hinge seat 841 formed on the frame platform 1 by a hinge pin. The right end of the traction bracket 82 has a traction bracket adjustment hole. The position of the traction bracket 82 on the traction bracket adjustment seat 83 is adjusted by the traction bracket adjustment pin at the position corresponding to the aforementioned traction bracket adjustment hole 831 and the traction bracket adjustment hole. A traction connector hole 821 is provided at the right end of the traction bracket 82. The aforementioned electrical control box 9 is electrically connected to the oil cylinder inlet and outlet solenoid valve on the oil cylinder inlet and outlet oil pipeline of the aforementioned arm hook bracket supine drive oil cylinder 81.

[0037] On the right end of the aforementioned hook arm bracket 7, facing upwards, and at a position corresponding to the aforementioned cylinder pin end hinge pin 8111, a cylinder pin end hinge pin seat 71 is fixed. The cylinder pin end hinge pin 8111 is hinged to the cylinder pin end hinge pin seat 71. A hook arm adjusting beam 74 is fixed at the middle of the left end of the hook arm bracket 7. Hook arm position adjusting holes 741 are spaced apart along the length of the adjusting beam 74. A hook arm hook 72 is mounted on the adjusting beam 74 via a hook arm adjusting plate 721. The hook arm hook 72 is adjusted by the adjusting plate 721 at the position corresponding to the aforementioned hook arm position adjusting hole 741 using a pin. The figure shows the hook arm bracket 7 being hinged to the vehicle frame platform 1 via a hook arm bracket hinge 73.

[0038] When the boom hook support's horizontal drive cylinder 81 is working, the cylinder column 811 pulls the hinge pin seat 71 at the end of the cylinder column, which in turn pulls the boom hook support 7 to rotate clockwise until the cylinder column 811 is fully retracted into the cylinder body of the boom hook support's horizontal drive cylinder 81. At this time, the boom hook support 7 is in a vertical state, and vice versa. When the boom hook support 7 is in a vertical state, the invention can be pulled onto the vehicle by hooking the boom hook 72 on a trailer, i.e., a fire truck. When the boom hook support 7 is in a horizontal position, it can be towed on flat ground through the towing connector hole 821 on the towing bracket 82.

[0039] The aforementioned main fire monitor 5 includes a main gun tube 51, which is connected to and communicates with the aforementioned liquid injection mechanism 3. A pair of auxiliary fire monitors 10 are also installed on the aforementioned chassis platform 1. Each of the auxiliary fire monitors 10 is equipped with an auxiliary fire monitor adjustment handwheel 102 and is connected to an auxiliary fire monitor supply pipe 101. The auxiliary fire monitor supply pipe 101 is connected to and communicates with the main gun tube 51 of the aforementioned main fire monitor 5 via an auxiliary fire monitor supply pipe connecting pipe 1011. A tilting tailplate 13 is hinged to the right end face of the aforementioned chassis platform 1. A taillight and license plate are provided on the right side of the flip tail plate 13 when it is in the upright state; the aforementioned liquid injection mechanism 3 includes a first liquid injection pipe 31, a second liquid injection pipe 32 and a third liquid injection pipe 33 distributed from front to back. One end of the first, second and third liquid injection pipes 31, 32 and 33 are connected and communicate with the aforementioned main gun barrel 51, while the other end is led to the liquid injection supply source through a pipeline in the use state. The liquid injection supplied by the aforementioned liquid injection supply source is water. Accordingly, the aforementioned liquid injection supply source is a water source.

[0040] Depend on Figure 5As shown, a mudguard 68 is fixed on the upper part of the aforementioned frame platform articulated arm 631. The mudguard 68 extends from the left side of the aforementioned basic travel wheel 61 and corresponds to the upper part of the basic travel wheel 61. The cross-sectional shape of the mudguard 68 is C-shaped.

[0041] Please see Figure 7 ,Should Figure 7 The hook bracket 7 is shown to be in the position of being supported by the hook bracket 7. Figure 5 In the schematic vertical position, the invention is being pulled or dragged onto the fire truck platform by the fire truck towing arm 301 of the fire truck 30.

[0042] Example 2: Please refer to Figure 8 The aforementioned walking mechanism 6 also includes a pair of additional walking wheels 65, a pair of additional walking wheel drive devices 66, and a pair of additional walking wheel lifting devices 67. The pair of additional walking wheels 65 are positioned on the right side of the pair of basic walking wheels 61 while maintaining a distance from them, and are rotatably mounted on the pair of additional walking wheel drive devices 66. The pair of additional walking wheel drive devices 66, together with the pair of additional walking wheels 65, are respectively hinged to the front and rear sides of the aforementioned frame platform 1 along its length. The pair of additional walking wheel lifting devices 67 are respectively mounted on the front and rear sides of the aforementioned frame platform 1 and are respectively hinged to the additional walking wheel drive devices 66. Since the diameter of the aforementioned pair of additional walking wheels 65 is the same as the diameter of the aforementioned pair of basic walking wheels 61, the structure of the aforementioned pair of additional walking wheel drive devices 66 is the same as the structure of the aforementioned pair of basic walking wheel drive devices 63, and the structure of the pair of additional walking wheel lifting devices 67 is the same as the structure of the aforementioned pair of basic walking wheel lifting devices 64, the applicant will not elaborate further.

[0043] In this embodiment, the aforementioned pair of support wheels 62 have a lifting structure. These support wheels 62 are respectively mounted on a pair of support wheel drive devices 622, which are hinged to the front and rear sides of the aforementioned frame platform 1, and hinged to them by a pair of support wheel lifting devices 623, which are also mounted on the front and rear sides of the frame platform 1. Since the pair of support wheels 62 have a lifting structure, their diameter is the same as that of the aforementioned pair of basic travel wheels 61. Furthermore, since the structures of the aforementioned pair of support wheel drive devices 622 and the pair of support wheel lifting devices 623 are the same as those of the aforementioned pair of basic travel wheel drive devices 63 and the pair of basic travel wheel lifting devices 64, the applicant will not repeat these descriptions. The rest is the same as the description of Embodiment 1.

[0044] Example 3: Please refer to Figure 9The only difference between this embodiment 3 and embodiment 2 is that the pair of support wheels 62 are replaced with the support wheels 62 of embodiment 1, and the rest are the same as the description of embodiment 2.

[0045] In summary, the technical solution provided by this invention makes up for the shortcomings of the prior art, successfully completes the invention task, and accurately realizes the technical effects described by the applicant in the above technical effects column.

Claims

1. A modular self-propelled high-flow-rate trailer fire monitor device, comprising a chassis platform (1); a foam power unit (2) disposed on the chassis platform (1); a spray liquid introduction mechanism (3) disposed at the right end of the chassis platform (1) and connected to the foam power unit (2); a main fire monitor base rotation mechanism (4) and a main fire monitor (5), the main fire monitor base rotation mechanism (4) being connected to the spray liquid introduction mechanism (3), and the main fire monitor (5) being connected to the main fire monitor base rotation mechanism (4); a traveling mechanism (6) connected to the side of the chassis platform (1) in the longitudinal direction; and a hook arm bracket (7) disposed on the chassis platform (1) at a position located to the left of the foam power unit (2), characterized in that: The traveling mechanism (6) includes at least one pair of basic traveling wheels (61), one pair of retractable or lifting support wheels (62), one pair of basic traveling wheel drive devices (63), and one pair of basic traveling wheel lifting devices (64). The pair of basic traveling wheels (61) are rotatably mounted on the pair of basic traveling wheel drive devices (63) and are hinged to the front and rear sides of the middle of the frame platform (1) along with the pair of basic traveling wheels (61). The pair of basic traveling wheel lifting devices (64) are respectively mounted on the frame platform (1). The front and rear sides are respectively hinged to the pair of basic walking wheel drive devices (63). A pair of retractable or lifting support wheels (62) are set on the front and rear sides of the left end of the frame platform (1) in a state of corresponding front and rear to each other. On the frame platform (1) and located between the foam power unit (2) and the hook support (7), there is a hook support supine drive mechanism (8) connected to the hook support (7) for changing the posture of the hook support (7). The right end of the hook support (7) is hinged to the frame platform (1).

2. The modular self-propelled high-flow-rate trailer fire monitor device according to claim 1, characterized in that: The walking mechanism (6) further includes a pair of additional walking wheels (65), a pair of additional walking wheel drive devices (66), and a pair of additional walking wheel lifting devices (67). The pair of additional walking wheels (65) are positioned on the right side of the pair of basic walking wheels (61) while maintaining a distance from them, and are rotatably mounted on the pair of additional walking wheel drive devices (66). The pair of additional walking wheel drive devices (66) and the pair of additional walking wheels (65) are respectively hinged to the front and rear sides of the frame platform (1) in the length direction. A pair of additional travel wheel lifting devices (67) are respectively disposed on the front and rear sides of the frame platform (1) and are respectively hinged to the additional travel wheel drive device (66); wherein, the diameter of the pair of additional travel wheels (65) is the same as the diameter of the pair of basic travel wheels (61), the structure of the pair of additional travel wheel drive devices (66) is the same as the structure of the pair of basic travel wheel drive devices (63), and the structure of the pair of additional travel wheel lifting devices (67) is the same as the structure of the pair of basic travel wheel lifting devices (64).

3. The modular self-propelled high-flow-rate trailer fire monitor device according to claim 1, characterized in that: When the pair of support wheels (62) has a retractable structure, the pair of support wheels (62) are rotatably mounted on the free ends of the pair of support wheel frames (6211) via a pair of support wheel axles (6211), and the hinged ends of the support wheel frames (621) are respectively hinged to the front and rear sides of the left end of the frame platform (1) via support wheel frame hinge pins (6212); when the pair of support wheels (62) has a lifting structure, the pair of support wheels (62) are respectively mounted on a pair of support wheel drive devices (622), and the pair of support wheel drive devices (622) are respectively hinged to the front and rear sides of the frame platform (1), and are hinged to a pair of support wheel lifting devices (623), and the pair of support wheel lifting devices (623) are respectively mounted on the frame platform (1). The front and rear sides; wherein, when the pair of support wheels (62) is a retractable structure, the diameter of the pair of support wheels (62) is smaller than the diameter of the pair of basic walking wheels (61), and when the pair of support wheels (62) is a lifting structure, the diameter of the pair of support wheels (62) is the same as the diameter of the pair of basic walking wheels (61), and the structure of the pair of support wheel drive device (622) and the pair of support wheel lifting device (623) is the same as the structure of the pair of basic walking wheel drive device (63) and the pair of basic walking wheel lifting device (64); a main fire monitor muzzle tilt angle adjustment device (52) for tilting or raising the muzzle (53) of the main fire monitor (5) is provided on the main fire monitor tube section of the main fire monitor (5).

4. The modular self-propelled high-flow-rate trailer fire monitor device according to claim 1, characterized in that: A battery (11) and a hydraulic station (12) are provided on the frame platform (1); each of the pair of basic walking wheel drive devices (63) includes a frame platform articulated arm (631), a hydraulic motor (632), and a reduction gearbox (633). The frame platform articulated arm (631) is hinged to the front and rear sides of the middle part of the frame platform (1) in the length direction through the frame platform articulated arm shaft (6311). The hydraulic motor (632) is connected to the hydraulic station (12) through oil pipes. The reduction gearbox (633) is driven by the hydraulic motor (632), and the reduction gearbox (633) together with the hydraulic motor (632) is connected to the frame platform. The hinged arm (631) is fixed to the inward side, and the pair of basic walking wheels (61) are fixed to the gearbox power output shaft (6331) of the gearbox (633). The foam power unit (2) is electrically connected to the electrical control box (9) and charges the battery (11). The battery (11) is electrically connected to the electrical control box (9) and the hydraulic station (12). The electrical control box (9) is mounted on the main fire monitor (5), and the electrical control box (9) is electrically connected to the boom hook bracket supine drive mechanism (8) and the pair of basic walking wheel lifting devices (64) through solenoid valves.

5. The modular self-propelled high-flow-rate trailer fire monitor device according to claim 4, characterized in that: Each of the pair of basic wheel lifting devices (64) includes a housing (641), a frame platform fixing frame (642), a frame platform articulated arm drive cylinder (643), a swing arm (644), a left spring rod (645a), a right spring rod (645b), a spring (646), and a swing arm hinge lug (647). The frame platform fixing frame (642) is positioned to the left of the frame platform articulated arm (631) and... The frame platform (1) is fixed, and the cover (641) is placed outside the frame platform fixing frame (642) and fixed to the frame platform (1). The left end hinge lug of the frame platform articulated arm drive cylinder (643) is hinged to the upper end of the swing arm (644) through the cylinder body hinge lug pin (6432). The right end cylinder column (6431) of the frame platform articulated arm drive cylinder (643) is connected to the upper end of the swing arm (644) through the cylinder column hinge pin (64311). The frame platform articulated arm (631) is hinged, the left end of the left spring rod (645a) is hinged to the lower end of the swing arm (644) via the left spring rod pin (6451), and the right end of the right spring rod (645b) is hinged to the right spring rod pin hinge lug (6421) formed on the frame platform fixing frame (642) via the right spring rod pin (6452). The left end of the spring (646) is sleeved on the left spring rod (645a). The right end of the spring (646) is fitted onto the right spring rod (645b), and the swing arm hinge ear (647) is formed on the frame platform fixing frame (642). The middle part of the swing arm (644) is hinged to the swing arm hinge ear (647) through the swing arm hinge pin (6441). The electrical control box (9) is electrically connected to the cylinder inlet and return solenoid valve on the cylinder inlet and return oil pipeline of the frame platform hinge arm drive cylinder (643).

6. The modular self-propelled high-flow-rate trailer fire monitor device according to claim 5, characterized in that: A frame platform articulation arm hinge lug (634) extends on the frame platform articulation arm (631) and at a position corresponding to the cylinder pin (6431). The cylinder pin (6431) is hinged to the frame platform articulation arm hinge lug (634) via a cylinder pin hinge pin (64311).

7. The modular self-propelled high-flow-rate trailer fire monitor device according to claim 4, characterized in that: The aforementioned boom hook support supine drive mechanism (8) includes a boom hook support supine drive cylinder (81), a traction bracket (82), a traction bracket adjustment seat (83), and a pair of traction bracket reinforcing support rods (84). The right end of the cylinder body of the boom hook support supine drive cylinder (81) is hinged to the cylinder body hinge pin seat (8121) via a cylinder body hinge pin (812). The cylinder body hinge pin seat (8121) corresponds to the foam power unit (2) and the boom hook. The position of the brackets (7) is fixed at the center of the left end of the frame platform (1) facing upward. The arm hook bracket supine drive cylinder column (811) of the arm hook bracket supine drive cylinder (81) faces left and is hinged to the right end of the arm hook bracket (7) facing upward through the hinge pin (8111) at the end of the cylinder column. The traction bracket adjustment seat (83) is fixed to the right end face of the arm hook bracket (7). The cross-sectional shape of the traction bracket adjustment seat (83) is... It is U-shaped, and the traction bracket adjustment seat wall on the front and rear sides is provided with corresponding traction bracket adjustment holes (831) at intervals. A pair of traction bracket reinforcing support rods (84) are parallel to each other, and the left end of each is hinged to the arm hook bracket (7) by a pin (842), while the right end of each is hinged to the traction bracket reinforcing support rod hinge seat (841) on the frame platform (1) by a hinge pin. The right end of the traction bracket (82) is provided with a traction bracket adjustment hole. The position of the traction bracket (82) on the traction bracket adjustment seat (83) is adjusted by the traction bracket adjustment pin at the position corresponding to the traction bracket adjustment hole (831) and the traction bracket adjustment hole. A traction connector hole (821) is provided at the right end of the traction bracket (82). The electrical control box (9) is electrically connected to the oil cylinder inlet and outlet solenoid valve on the oil cylinder inlet and outlet oil pipeline of the arm hook bracket supine drive cylinder (81).

8. The modular self-propelled high-flow-rate trailer fire monitor device according to claim 7, characterized in that: On the right end of the pull arm hook bracket (7), facing upwards, a cylinder pin end hinge pin seat (71) is fixed at a position corresponding to the cylinder pin end hinge pin (8111). The cylinder pin end hinge pin (8111) is hinged to the cylinder pin end hinge pin seat (71). A pull arm hook adjusting beam (74) is fixed at the middle of the left end of the pull arm hook bracket (7). Pull arm hook position adjusting holes (741) are provided at intervals along the length of the pull arm hook adjusting beam (74). A pull arm hook (72) is provided on the pull arm hook adjusting beam (74) by means of a pull arm hook adjusting plate (721). The pull arm hook (72) is adjusted by means of a pin at the position corresponding to the pull arm hook position adjusting hole (741).

9. The modular self-propelled high-flow-rate trailer fire monitor device according to claim 1, characterized in that: The main fire monitor (5) includes a main gun tube (51), which is connected to and communicates with the injection liquid introduction mechanism (3); a pair of auxiliary fire monitors (10) are also provided on the chassis platform (1), each of the auxiliary fire monitors (10) is equipped with an auxiliary fire monitor adjustment handwheel (102) and is connected by an auxiliary fire monitor supply pipe (101), and the auxiliary fire monitor supply pipe (101) is connected to and communicates with the main gun tube (51) of the main fire monitor (5) through an auxiliary fire monitor supply pipe connecting pipe (1011); a hinge is provided on the right end face of the chassis platform (1). A flip-up tailplate (13) is provided, and a taillight and license plate are provided on the right side of the flip-up tailplate (13) when it is in the upright state; the jet liquid introduction mechanism (3) includes a first jet liquid introduction pipe (31), a second jet liquid introduction pipe (32) and a third jet liquid introduction pipe (33) distributed from front to back. One end of the first, second and third jet liquid introduction pipes (31, 32, 33) is connected to and communicates with the main gun barrel (51), while the other end is led to the jet liquid supply source through a pipeline when in use. The jet liquid supplied by the jet liquid supply source is water.

10. The modular self-propelled high-flow-rate trailer fire monitor device according to claim 4, characterized in that: A mudguard (68) is fixed on the upper part of the frame platform articulated arm (631). The mudguard (68) extends from the left side of the basic travel wheel (61) and corresponds to the upper part of the basic travel wheel (61). The cross-sectional shape of the mudguard (68) is C-shaped.

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