A sub-mother type drainage rescue vehicle

Abstract

The application relates to the technical field of rescue vehicles, and provides a child-mother type drainage rescue vehicle, which comprises a vehicle chassis, a mother carriage fixedly arranged on the vehicle chassis, a child carriage movably arranged on the vehicle chassis, a driving mechanism arranged on the vehicle chassis and in transmission connection with the child carriage, so that the child carriage can be driven to move between a storage position and a falling position, at least part of the child carriage falls on the ground from the vehicle chassis at the falling position, and the child carriage is completely supported on the vehicle chassis at the storage position, and a drivable drainage execution device arranged in the child carriage, which can leave the child carriage and reach the ground when the child carriage falls on the ground from the vehicle chassis.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rescue vehicles, in particular to a mother-daughter type drainage rescue vehicle. BACKGROUND

[0002] The drainage rescue vehicle is the core equipment in the emergency rescue system for flood control and drought resistance, and is widely used in scenes such as urban waterlogging disposal, agricultural drought resistance water transportation, and building engineering foundation drainage. Such vehicles usually have high mobility, functional diversity and intelligent operation characteristics, and can quickly respond to disaster situations and provide emergency drainage support.

[0003] The drainage rescue vehicle in the prior art generally adopts a fixed carriage type structure, and the carriage is fixedly arranged on the vehicle chassis, and the drainage execution equipment (such as a portable pump station, a drainage robot, a hydraulic power unit, etc.) is loaded in the carriage. Although this design is beneficial to equipment transportation and protection, it has obvious defects in actual rescue operations: because the drainage execution equipment is heavy and large in size, and the carriage is fixedly connected with the chassis, personnel cannot directly move the equipment from the vehicle by hand, which leads to inconvenience in equipment taking and placing. Especially for large facilities such as heavy drainage robots or integrated mobile pump stations, additional auxiliary equipment such as cranes, lifting transfer platforms or forklifts is often required to achieve ground unloading. This process not only consumes time and effort, increases the operation complexity of equipment taking and placing, but also may delay the best rescue opportunity in an emergency rescue situation. SUMMARY

[0004] Therefore, the present application provides a mother-daughter type drainage rescue vehicle to solve the technical problem of inconvenient taking and placing of drainage execution equipment of the fixed carriage type drainage rescue vehicle in the prior art.

[0005] The present application provides a mother-daughter type drainage rescue vehicle, wherein the mother-daughter type drainage rescue vehicle comprises:

[0006] a vehicle chassis, a mother carriage fixedly arranged on the vehicle chassis, and a daughter carriage movably arranged on the vehicle chassis;

[0007] a driving mechanism arranged on the vehicle chassis and in driving connection with the daughter carriage, so as to drive the daughter carriage to move between a stowed position and a dropped position, in the dropped position, at least a part of the daughter carriage is dropped on the ground away from the vehicle chassis, and in the stowed position, the daughter carriage is completely supported on the vehicle chassis;

[0008] a drivable drainage execution equipment arranged in the daughter carriage, when the daughter carriage is dropped on the ground away from the vehicle chassis, the drivable drainage execution equipment can be away from the daughter carriage and reach the ground.

[0009] Further, in the stowed position, the sub-carriage is adjacent to the tail end of the vehicle chassis, the first end of the sub-carriage is towards the front of the sub-mother drainage emergency vehicle, the second end of the sub-carriage is away from the front of the sub-mother drainage emergency vehicle, the driving mechanism is in transmission connection with the first end of the sub-carriage, and the driving mechanism can at least drive the second end of the sub-carriage to fall from the tail end of the vehicle chassis so that the second end of the sub-carriage falls on the ground.

[0010] Further, the driving mechanism comprises a hydraulic cylinder and a rotating arm, one end of the rotating arm is hinged to the vehicle chassis, the other end of the rotating arm is hinged to the first end of the sub-carriage, the cylinder body of the hydraulic cylinder is hinged to the vehicle chassis, the piston rod of the hydraulic cylinder is hinged to the rotating arm, when the piston rod extends from the cylinder body, it can drive the rotating arm to swing in a first direction to push the sub-carriage out of the vehicle chassis, and when the piston rod retracts from the cylinder body, it can drive the rotating arm to swing in a second direction to pull the sub-carriage back into the vehicle chassis, the first direction is opposite to the second direction.

[0011] Further, the rotating arm comprises a first arm and a second arm connected to each other, the first arm is perpendicular to the second arm, one end of the first arm away from the second arm is hinged to the vehicle chassis, one end of the second arm away from the first arm is hinged to the first end of the sub-carriage, the piston rod is hinged to the first arm, the first end of the sub-carriage is provided with a vertical accommodating groove, when the sub-carriage is in the stowed position, the first arm is parallel to the vehicle chassis, and the second arm is accommodated in the vertical accommodating groove.

[0012] Further, the sub-mother drainage emergency vehicle comprises steering limiting cooperation structures and straight limiting cooperation structures arranged on the vehicle chassis, the steering limiting cooperation structures and the straight limiting cooperation structures can limit or release the cooperation with the sub-carriage, when the steering limiting cooperation structures limit the cooperation with the sub-carriage and the straight limiting cooperation structures release the cooperation with the sub-carriage, the driving mechanism can drive the sub-carriage to steer on the vehicle chassis and make the second end of the sub-carriage fall from one side of the vehicle chassis in the width direction to fall on the ground, and when the straight limiting cooperation structures limit the cooperation with the sub-carriage and the steering limiting cooperation structures release the cooperation with the sub-carriage, the driving mechanism can drive the second end of the sub-carriage to fall from the tail end of the vehicle chassis in the length direction of the vehicle chassis to fall on the ground.

[0013] Further, the driving mechanism comprises a hydraulic cylinder, a cylinder body of the hydraulic cylinder is hinged to the vehicle chassis through a first universal ball joint, a piston rod of the hydraulic cylinder is hinged to the first end of the sub-car through a second universal ball joint, a first vertical plate and a second vertical plate are arranged below the sub-car, the first vertical plate and the second vertical plate are spaced apart from each other and supported on the vehicle chassis, the turning limiting cooperation structure comprises an arc-shaped guide rail which is arranged on the vehicle chassis in a liftable manner, the straight line limiting cooperation structure comprises a straight line guide rail which is arranged on the vehicle chassis in a liftable manner, the arc-shaped guide rail extends from the middle of the vehicle chassis to one side of the width direction of the vehicle chassis, the straight line guide rail is arranged along the length direction of the vehicle chassis, the arc-shaped guide rail can be lifted to protrude above the upper surface of the vehicle chassis and be located between the first vertical plate and the second vertical plate, or be lowered to hide below the upper surface of the vehicle chassis; the straight line guide rail can be lifted to protrude above the upper surface of the vehicle chassis and be located between the first vertical plate and the second vertical plate, or be lowered to hide below the upper surface of the vehicle chassis.

[0014] Further, the first end of the sub-car is connected with a vertical slide rail, a sliding block is mounted on the vertical slide rail, the piston rod of the hydraulic cylinder is hinged to the sliding block through the second universal ball joint, the first vertical plate and the second vertical plate are both connected with supporting wheels.

[0015] Further, the driving mechanism comprises a hydraulic cylinder, a cylinder body of the hydraulic cylinder is hinged to the vehicle chassis through a first universal ball joint, a piston rod of the hydraulic cylinder is hinged to the first end of the sub-car through a second universal ball joint, a first vertical plate and a second vertical plate are arranged below the sub-car, the first vertical plate and the second vertical plate are spaced apart from each other and supported on the vehicle chassis, the turning limiting cooperation structure comprises a vertical sleeve arranged on one side of the first end of the sub-car and a movable electric bolt arranged on the vehicle chassis, a main body of the movable electric bolt is hinged to the vehicle chassis through a hinge shaft, the hinge shaft extends along the length direction of the vehicle chassis, a locking mechanism is arranged in the vehicle chassis, the locking mechanism can keep the movable electric bolt in an upright position, when the sub-car is in the folded position and the movable electric bolt is kept in the upright position, a bolt part of the movable electric bolt can extend into the vertical sleeve, the straight line limiting cooperation structure comprises a straight line guide rail which is arranged on the vehicle chassis in a liftable manner, the straight line guide rail is arranged along the length direction of the vehicle chassis, the straight line guide rail can be lifted to protrude above the upper surface of the vehicle chassis and be located between the first vertical plate and the second vertical plate, or be lowered to hide below the upper surface of the vehicle chassis.

[0016] Further, a first guide wheel is arranged at the lower end of the sub-car, a second guide wheel is arranged at the tail end of the vehicle chassis, the second guide wheel is higher than the upper surface of the vehicle chassis.

[0017] Furthermore, the drivable drainage execution device is a drainage emergency robot or a mobile pumping station, and the sub-carriage is equipped with an openable and closable door.

[0018] The beneficial effects of the mother-daughter type drainage emergency vehicle provided by this invention are as follows:

[0019] Compared to existing technologies, the mother-daughter type drainage and rescue vehicle provided by this invention includes a sub-carriage and a drive mechanism. The drive mechanism can drive the sub-carriage to move between a retracted position and a lowered position. In the lowered position, at least a portion of the sub-carriage leaves the vehicle chassis and lands on the ground. At this time, the drivable drainage actuator can leave the sub-carriage and reach the ground without having to be transported from the sub-carriage, which is entirely on the vehicle chassis. Furthermore, when the drivable drainage actuator needs to return to the sub-carriage, there is no need to use a lifting and lowering device to lift it and send it into the sub-carriage, especially for self-propelled drainage and rescue robots. The sub-carriages on the ground do not require additional lifting or lowering equipment or ladders, greatly saving energy and avoiding the inability to retrieve or lower the drivable drainage equipment due to malfunctions of additional lifting or lowering equipment, or accidents caused by the drainage equipment falling down. Therefore, the retrieval and placement of the drainage equipment of this mother-daughter type drainage and emergency rescue vehicle can be completed on the ground, which is very convenient. The drivable drainage equipment can also drive directly to the ground after the sub-carriages are lowered, quickly carrying out drainage and emergency rescue work. After the drainage and emergency rescue work is completed, it can safely drive into the sub-carriages on the ground, reducing operational risks and labor intensity, and improving the efficiency of emergency rescue and disaster relief.

[0020] The more detailed beneficial effects of the present invention will be described below. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, 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.

[0022] Figure 1 This is a side view of a mother-daughter type drainage emergency vehicle according to an embodiment of this application when the daughter car is in the lowered position;

[0023] Figure 2 This is a side view of a mother-daughter type drainage emergency vehicle according to an embodiment of this application, with the daughter compartment in the retracted position;

[0024] Figure 3 This is a perspective view of a mother-daughter type drainage emergency vehicle according to an embodiment of this application;

[0025] Figure 4 This is a perspective view of a mother-daughter type drainage emergency vehicle according to an embodiment of this application, with the daughter compartment in the lowered position;

[0026] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0027] Figure 6 This is a perspective view of a portion of the structure of a mother-and-child type drainage and emergency rescue vehicle according to an embodiment of this application, when the corresponding sub-carriage is in the stowed position.

[0028] Figure 7 for Figure 6 Enlarged view of point B in the middle;

[0029] Figure 8 This is a simplified three-dimensional schematic diagram of a portion of the structure of a mother-daughter type drainage emergency vehicle according to an embodiment of this application;

[0030] Figure 9 for Figure 8 Enlarged view of point C in the middle;

[0031] Figure 10 This is another simplified perspective view of a portion of the structure of a mother-daughter type drainage emergency vehicle according to an embodiment of this application;

[0032] Figure 11 for Figure 10 Enlarged view of point D in the middle;

[0033] Figure 12 This is a perspective view of a portion of the structure of a mother-and-child type drainage emergency vehicle according to an embodiment of this application;

[0034] Figure 13 for Figure 12 Enlarged view at point E in the middle;

[0035] Figure 14 This is a schematic diagram illustrating the motion principle of the sub-carriage of a mother-daughter type drainage and emergency rescue vehicle according to an embodiment of this application;

[0036] Figure 15 This is a simplified three-dimensional schematic diagram of a portion of the structure of a mother-daughter type drainage emergency vehicle according to an embodiment of this application;

[0037] Figure 16 for Figure 15 Enlarged view of point F in the middle.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1-Vehicle chassis; 2-Mother car body; 3-Floating placement compartment; 4-Submersible pump; 5-Generator set; 6-Submersible pump control box; 7-Daughter car body; 8-Moving drainage actuator; 9-Cockpit; 10-Hydraulic cylinder; 11-Vertical receiving slot; 12-First universal joint; 13-Second universal joint; 14-First upright plate; 15-Second upright plate; 16-Support wheel; 17-Curved guide rail; 18-Linear guide rail; 19-Vertical sleeve; 20-Hinge shaft; 21-Vertical slide rail; 22-Slider; 23-First guide wheel; 24-Second guide wheel; 25-Openable and closeable door; 100-Rotating arm; 101-First arm; 102-Second arm; 200-Modible electric latch; 201-Latch part. Detailed Implementation

[0040] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. One or more embodiments of this application are exemplarily shown in the drawings to provide a more accurate and thorough understanding of the technical solutions disclosed herein. However, it should be understood that this application can be implemented in many different forms and is not limited to the embodiments described below.

[0041] In the accompanying drawings of this application, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0042] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously.

[0043] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0044] See Figures 1 to 7 This application provides a mother-daughter type drainage emergency vehicle, wherein the mother-daughter type drainage emergency vehicle includes:

[0045] The vehicle chassis 1, the mother car 2 fixedly mounted on the vehicle chassis 1, and the daughter car 7 movably mounted on the vehicle chassis 1. The mother car 2 may be equipped with a floating placement chamber 3, a submersible pump chamber 4, etc., and equipment such as generator set 5 and submersible pump control box 6 may also be installed in the mother car 2.

[0046] A drive mechanism is mounted on the vehicle chassis 1 and is connected to the subcarriage 7 in a transmission manner, so as to drive the subcarriage 7 to move between a retracted position and a lowered position. In the lowered position, at least a portion of the subcarriage 7 leaves the vehicle chassis 1 and lands on the ground. In the retracted position, the subcarriage 7 is fully supported on the vehicle chassis 1.

[0047] The mobile drainage actuator 8 is installed inside the subcarriage 7. When the subcarriage 7 falls from the vehicle chassis 1 and lands on the ground, the mobile drainage actuator 8 can leave the subcarriage 7 and reach the ground. Specifically, the mobile drainage actuator 8 can be a drainage emergency robot or a mobile pumping station. The subcarriage 7 is equipped with an openable and closable door 25. After the openable and closable door 25 is opened, the mobile drainage actuator 8 drives out of the subcarriage 7 through the openable and closable door 25.

[0048] Because the mother-daughter type drainage and rescue vehicle provided by the present invention is equipped with a sub-carriage 7 and a drive mechanism, the drive mechanism can drive the sub-carriage 7 to move between the retracted position and the lowered position. In the lowered position, at least a part of the sub-carriage 7 leaves the vehicle chassis 1 and lands on the ground. At this time, the drivable drainage execution device 8 can leave the sub-carriage 7 and reach the ground without having to be transported from the sub-carriage 7, which is completely on the vehicle chassis 1, to the ground. Therefore, the retrieval and placement of the drainage execution device of the mother-daughter type drainage and rescue vehicle can be completed on the ground, which is very convenient. The drivable drainage execution device 8 can also drive directly to the ground after the sub-carriage 7 lands on the ground to quickly perform drainage and rescue work.

[0049] According to one embodiment of this application, in the retracted position, the sub-carriage 7 is adjacent to the rear end of the vehicle chassis 1. The first end of the sub-carriage 7 faces the front of the mother-daughter type drainage and rescue vehicle, and the front of the vehicle is provided with a driver's cab 9. The second end of the sub-carriage 7 faces away from the front of the mother-daughter type drainage and rescue vehicle. The drive mechanism is connected to the first end of the sub-carriage 7. The drive mechanism can at least drive the second end of the sub-carriage 7 to fall from the rear end of the vehicle chassis 1 so that the second end of the sub-carriage 7 lands on the ground. At this time, the first end of the sub-carriage 7 can be supported by the rear end of the vehicle chassis 1 or can be detached from the rear end of the vehicle chassis 1.

[0050] According to a specific embodiment of this application, the drive mechanism includes a hydraulic cylinder 10 and a rotating arm 100. One end of the rotating arm 100 is hinged to the vehicle chassis 1, and the other end of the rotating arm 100 is hinged to the first end of the subcarriage 7. The cylinder body of the hydraulic cylinder 10 is hinged to the vehicle chassis 1, and the piston rod of the hydraulic cylinder 10 is hinged to the rotating arm 100. When the piston rod extends from the cylinder body, it can drive the rotating arm 100 to swing in a first direction and push the subcarriage 7 out of the vehicle chassis 1. When the piston rod retracts from the cylinder body, it can drive the rotating arm 100 to swing in a second direction and pull the subcarriage 7 back to the vehicle chassis 1. The first direction and the second direction are opposite. When the first direction is clockwise, the second direction is counterclockwise.

[0051] According to one embodiment of this application, the rotating arm 100 includes a first arm 101 and a second arm 102 connected to each other. The first arm 101 is perpendicular to the second arm 102. The end of the first arm 101 away from the second arm 102 is hinged to the vehicle chassis 1. The end of the second arm 102 away from the first arm 101 is hinged to the first end of the subcarriage 7. The piston rod is hinged to the first arm 101. The first end of the subcarriage 7 is provided with a vertical receiving groove 11. When the subcarriage 7 is in the retracted position, the first arm 101 is parallel to the vehicle chassis 1, and the second arm 102 is received in the vertical receiving groove 11. The piston rod of the hydraulic cylinder 10 can be specifically hinged to the groove wall of the vertical receiving groove 11.

[0052] According to another embodiment of this application, the mother-daughter type drainage emergency vehicle includes a steering limiting structure and a straight-line limiting structure disposed on the vehicle chassis 1. Both the steering limiting structure and the straight-line limiting structure can be engaged with or disengaged from the sub-carriage 7. When the steering limiting structure is engaged with the sub-carriage 7 and the straight-line limiting structure is disengaged from the sub-carriage 7, the drive mechanism can drive the sub-carriage 7 to turn on the vehicle chassis 1 and cause the second end of the sub-carriage 7 to fall from one side of the width direction of the vehicle chassis 1, so that the second end of the sub-carriage 7 lands on the ground. Preferably, the second end of the sub-carriage 7 can also fall from one side of the width direction of the vehicle chassis 1, so that the second end of the sub-carriage 7 lands on the ground. The straight-line limiting structure is engaged with the sub-carriage 7 and... When the steering limit engagement structure is released from the limit engagement with the sub-carriage 7, the drive mechanism can drive the second end of the sub-carriage 7 to fall from the rear end of the vehicle chassis 1 along the length direction of the vehicle chassis 1, so that the second end of the sub-carriage 7 lands on the ground. Considering the special road conditions of the drainage rescue site and the space conditions when the mother-daughter drainage rescue vehicle is parked on the road, the sub-carriage 7 can not only fall from the rear end of the vehicle chassis 1 along the length direction of the vehicle chassis 1, but also fall from one side (or the other side) along the width direction of the vehicle chassis 1 when the rear end of the vehicle chassis 1 does not have the space conditions or road support conditions for the sub-carriage 7 to fall. Thus, in this embodiment, the sub-carriage 7 can adapt to more demanding road conditions, allowing the sub-carriage 7 to flexibly extend from the vehicle chassis 1 from different directions and fall.

[0053] See Figures 8 to 14 According to another embodiment of this application, the drive mechanism includes a hydraulic cylinder 10. The cylinder body of the hydraulic cylinder 10 is hinged to the vehicle chassis 1 via a first universal joint 12, and the piston rod of the hydraulic cylinder 10 is hinged to the first end of the sub-carriage 7 via a second universal joint 13. A clearance groove is formed below the mother carriage 2. The hydraulic cylinder 10 is mounted on the vehicle chassis 1 and located in the clearance groove. A first upright plate 14 and a second upright plate 15 are provided below the sub-carriage 7. The first upright plate 14 and the second upright plate 15 are spaced apart from each other and supported on the vehicle chassis 1. The steering limit engagement structure includes a... The curved guide rail 17 is vertically mounted on the vehicle chassis 1. The linear limiting and cooperating structure includes a linear guide rail 18 vertically mounted on the vehicle chassis 1. The curved guide rail 17 extends from the middle of the vehicle chassis 1 towards one side in the width direction of the vehicle chassis 1. The linear guide rail 18 is arranged along the length direction of the vehicle chassis 1. The curved guide rail 17 can be raised and protrude from the upper surface of the vehicle chassis 1 and be located between the first vertical plate 14 and the second vertical plate 15, or lowered and hidden below the upper surface of the vehicle chassis 1. The linear guide rail 18 can be raised and protrude from the upper surface of the vehicle chassis 1. The upper surface is located between the first vertical plate 14 and the second vertical plate 15, or lowered and hidden below the upper surface of the vehicle chassis 1. The vehicle chassis 1 is connected to the arc guide rail 17 and the linear guide rail 18 via a lifting cylinder to drive the arc guide rail 17 and the linear guide rail 18 to rise and fall. The upper surface of the vehicle chassis 1 has through holes for the arc guide rail 17 and the linear guide rail 18 to extend and retract. The shape of the corresponding through holes is adapted to the shape of the arc guide rail 17 and the linear guide rail 18. The starting ends of the arc guide rail 17 and the linear guide rail 18 can be as close as possible, so that only... The first upright plate 14 and the second upright plate 15 of the same group form a limiting guide with the arc guide rail 17 and the linear guide rail 18. Of course, the arc guide rail 17 and the linear guide rail 18 can also be matched with their respective first upright plate 14 and second upright plate 15. In order to realize the drop of the subcarriage 7 from both sides (one side and the other side of the width direction) of the vehicle chassis 1, two arc guide rails 17 can be symmetrically arranged. When the piston rod of the hydraulic cylinder 10 extends, it can push the subcarriage 7 to move out of the chassis along the arc guide rail 17 or the linear guide rail 18, and finally support it on the ground.

[0054] See Figure 15 and Figure 16According to another embodiment of this application, the drive mechanism includes a hydraulic cylinder 10. The cylinder body of the hydraulic cylinder 10 is hinged to the vehicle chassis 1 via a first universal joint 12, and the piston rod of the hydraulic cylinder 10 is hinged to the first end of the subcarriage 7 via a second universal joint 13. A first upright plate 14 and a second upright plate 15 are provided below the subcarriage 7. The first upright plate 14 and the second upright plate 15 can be welded to the lower part of the subcarriage 7, or they can be detachably connected to the lower part of the subcarriage 7 by threaded fasteners. The first upright plate 14 and the second upright plate 15 are supported on the vehicle chassis 1 at intervals. The steering limit engagement structure includes a vertical sleeve 19 provided on one side of the first end of the subcarriage 7 (preferably, vertical sleeves 19 are provided on both sides of the first end of the subcarriage 7) and a movable electric pin 200 provided on the vehicle chassis 1. The main body of the movable electric pin 200 is... The hinge shaft 20 is hinged to the vehicle chassis 1 and extends along the length of the vehicle chassis 1. A locking mechanism is provided inside the vehicle chassis 1. The locking mechanism is, for example, an electric gripper. The electric gripper can rotate the hinge shaft 20 and keep it fixed. The locking structure can keep the movable electric pin 200 in the vertical position. When the sub-carriage 7 is in the retracted position and the movable electric pin 200 is kept in the vertical position, the pin part 201 of the movable electric pin 200 can extend into the vertical sleeve 19. The linear limiting and cooperating structure includes a linear guide rail 18 that is vertically and retractably provided on the vehicle chassis 1. The linear guide rail 18 is arranged along the length of the vehicle chassis 1. The linear guide rail 18 can be raised and protrude from the upper surface of the vehicle chassis 1 and be located between the first vertical plate 14 and the second vertical plate 15, or lowered and hidden under the upper surface of the vehicle chassis 1.

[0055] According to one embodiment of this application, the first end of the subcarriage 7 is connected to a vertical slide rail 21, and a slider 22 is installed on the vertical slide rail 21. The slider 22 can slide along the vertical slide rail 21. Structures should be provided at both ends of the vertical slide rail 21 to prevent the slider 22 from dislodging. The piston rod of the hydraulic cylinder 10 is hinged to the slider 22 via a second universal joint 13. This allows the piston rod of the hydraulic cylinder 10 to move along the vertical slide rail 21 when driving the subcarriage 7, giving the subcarriage 7 more flexible movement space. Furthermore, in specific operation, it is preferable to lock the slider 22 at different positions on the vertical slide rail 21, so that when the second end of the subcarriage 7 lands on the ground, the upward tilt height of the first end of the subcarriage 7 is different. Of course, the vertical slide rail 21 can also be omitted, allowing the piston rod of the hydraulic cylinder 10 to be directly hinged to the subcarriage 7 via the second universal joint 13.

[0056] According to a preferred embodiment of this application, both the first upright plate 14 and the second upright plate 15 are connected to support wheels 16. The support wheels 16 move on the vehicle chassis 1, thereby supporting the entire subcarriage 7 to move on the vehicle chassis 1. In addition, a first guide wheel 23 is provided at the lower end of the subcarriage 7, and a second guide wheel 24 is provided at the rear end of the vehicle chassis 1. The second guide wheel 24 is higher than the upper surface of the vehicle chassis 1. Both the first guide wheel 23 and the second guide wheel 24 can provide smooth support and guidance for the movement of the subcarriage 7 on the vehicle chassis 1, avoiding rigid scraping between the subcarriage 7 and the vehicle chassis 1. When the subcarriage 7 is in the falling position, it can contact the ground through the first guide wheel 23.

[0057] It should be noted that the above embodiments only illustrate preferred embodiments of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting this application. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of this application, such as combining different features in various embodiments, and these should all fall within the protection scope of this application.

Claims

1. A mother-and-child type drainage and emergency rescue vehicle, characterized in that, The mother-and-child type drainage emergency vehicle includes: The vehicle chassis, the mother car body fixedly mounted on the vehicle chassis, and the daughter car body movably mounted on the vehicle chassis; A drive mechanism is mounted on the vehicle chassis and is throttle connected to the subcarriage, enabling the subcarriage to move between a retracted position and a lowered position. In the lowered position, at least a portion of the subcarriage leaves the vehicle chassis and lands on the ground. In the retracted position, the subcarriage is fully supported on the vehicle chassis. A drivable drainage actuator is installed inside the subcarriage. When the subcarriage is lowered from the vehicle chassis and lands on the ground, the drivable drainage actuator can leave the subcarriage and reach the ground. In the retracted position, the sub-carriage is adjacent to the rear end of the vehicle chassis, the first end of the sub-carriage faces the front of the mother-daughter drainage and rescue vehicle, the second end of the sub-carriage faces away from the front of the mother-daughter drainage and rescue vehicle, the drive mechanism is connected to the first end of the sub-carriage, and the drive mechanism is at least capable of driving the second end of the sub-carriage to fall from the rear end of the vehicle chassis so that the second end of the sub-carriage lands on the ground; The mother-daughter type drainage and emergency rescue vehicle includes a steering limiting structure and a straight-line limiting structure installed on the vehicle chassis. Both the steering limiting structure and the straight-line limiting structure can engage or disengage with the sub-carriage. When the steering limiting structure engages with the sub-carriage and the straight-line limiting structure disengages from the sub-carriage, the drive mechanism can drive the sub-carriage to turn on the vehicle chassis and cause the second end of the sub-carriage to fall from one side of the width direction of the vehicle chassis, so that the second end of the sub-carriage lands on the ground. When the straight-line limiting structure engages with the sub-carriage and the steering limiting structure disengages from the sub-carriage, the drive mechanism can drive the second end of the sub-carriage to fall along the length direction of the vehicle chassis from the rear end of the vehicle chassis, so that the second end of the sub-carriage lands on the ground. The drive mechanism includes a hydraulic cylinder. The cylinder body of the hydraulic cylinder is hinged to the vehicle chassis via a first universal joint, and the piston rod of the hydraulic cylinder is hinged to the first end of the sub-carriage via a second universal joint. A first upright plate and a second upright plate are provided below the sub-carriage. The first upright plate and the second upright plate are spaced apart from each other and supported on the vehicle chassis. The steering limiting and coordinating structure includes an arc-shaped guide rail that is liftably disposed on the vehicle chassis, and the linear limiting and coordinating structure includes a linear guide rail that is liftably disposed on the vehicle chassis. The arc-shaped guide rail extends from the middle of the vehicle chassis toward one side of the width direction of the vehicle chassis, and the linear guide rail is arranged along the length direction of the vehicle chassis. The arc-shaped guide rail can be raised and protruded from the upper surface of the vehicle chassis and located between the first upright plate and the second upright plate, or lowered and hidden below the upper surface of the vehicle chassis. The linear guide rail can be raised and protruded from the upper surface of the vehicle chassis and located between the first upright plate and the second upright plate, or lowered and hidden below the upper surface of the vehicle chassis.

2. The mother-daughter type drainage and emergency rescue vehicle according to claim 1, characterized in that, The first end of the sub-carriage is connected to a vertical slide rail, on which a slider is installed. The piston rod of the hydraulic cylinder is hinged to the slider via a second universal joint. Both the first and second vertical plates are connected to support wheels.

3. The mother-daughter type drainage and emergency rescue vehicle according to claim 1 or 2, characterized in that, The lower end of the subcarriage is provided with a first guide wheel, and the rear end of the vehicle chassis is provided with a second guide wheel, the second guide wheel being higher than the upper surface of the vehicle chassis.

4. The mother-daughter type drainage and emergency rescue vehicle according to claim 1 or 2, characterized in that, The drivable drainage execution equipment is a drainage emergency robot or a mobile pumping station, and the sub-carriage is equipped with an openable and closable door.

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