A sub-carriage sliding rail type quick separation structure

Abstract

The application relates to the technical field of rescue vehicles, and provides a sub-carriage sliding rail type quick separation structure, which comprises a vehicle chassis and a sub-carriage movably arranged on the vehicle chassis, a drainage execution device is arranged in the sub-carriage; a driving mechanism is arranged on the vehicle chassis and is in transmission connection with the sub-carriage, so that the sub-carriage can move between a storage position and a falling position; in the falling position, at least a part of the sub-carriage is supported on the ground and leaves the vehicle chassis; in the storage position, the sub-carriage is completely supported on the vehicle chassis; a separation structure is arranged between the driving mechanism and the sub-carriage; when the sub-carriage is in the falling position, the separation structure can separate the driving mechanism from the sub-carriage; the sub-carriage sliding rail type quick separation structure can improve the taking and placing convenience of the drainage execution device in the sub-carriage and improve the diversified adaptability of the use scene.

Description

Technical Field

[0001] This application relates to the field of emergency rescue vehicle technology, and more specifically, to a sub-carriage sliding rail type quick separation structure. Background Technology

[0002] Drainage emergency response vehicles are core equipment in flood control and drought relief emergency rescue systems, and are widely used in scenarios such as urban flooding control, agricultural drought relief water delivery, and construction project foundation pit drainage. These vehicles typically possess high mobility, versatility, and intelligent operation characteristics, enabling them to quickly respond to disasters and provide emergency drainage support.

[0003] Existing drainage and emergency rescue vehicles typically employ a fixed cargo box structure. The cargo box is fixed to the vehicle chassis, and drainage equipment (such as portable pumping stations, drainage robots, and hydraulic power units) is mounted inside. With the cargo box fixed to the chassis, the drainage equipment either operates solely on the chassis or often requires additional auxiliary equipment such as cranes, lifting platforms, or forklifts to unload and place it on the ground. This process is not only time-consuming and labor-intensive, increasing the complexity of equipment handling, but also significantly limits the application scenarios of the drainage equipment and may delay optimal rescue opportunities in emergency situations. Summary of the Invention

[0004] In view of this, this application provides a sliding rail-type quick separation structure for the sub-carriage to solve the technical problems of inconvenient loading and unloading of drainage execution equipment and limited application scenarios in the prior art of fixed-carriage drainage emergency vehicles.

[0005] This application provides a sub-carriage sliding rail type quick separation structure, wherein the sub-carriage sliding rail type quick separation structure includes:

[0006] The vehicle chassis and a subcarriage movably mounted on the vehicle chassis, wherein a drainage actuator is provided in the subcarriage;

[0007] 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 is off the vehicle chassis and supported on the ground. In the retracted position, the subcarriage is fully supported on the vehicle chassis.

[0008] A separation structure is provided, in which the drive mechanism is connected to the sub-carriage. When the sub-carriage is in the falling position, the separation structure enables the drive mechanism to separate from the sub-carriage.

[0009] Furthermore, the separation structure is a pluggable pin, and the drive mechanism includes a hydraulic cylinder and a rotating arm. One end of the rotating arm is hinged to the vehicle chassis, and the other end of the rotating arm is hinged to a first end of the sub-carriage along its length via the pluggable pin. The cylinder body of the hydraulic cylinder is hinged to the vehicle chassis, and 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. 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 to the vehicle chassis. The first direction is opposite to the second direction.

[0010] Furthermore, the rotating arm includes a first arm and a second arm connected to each other. The first arm is perpendicular to the second arm. The end of the first arm away from the second arm is hinged to the vehicle chassis. The end of the second arm away from the first arm is hinged to the first end of the sub-carriage along its length. The piston rod is hinged to the first arm. The first end of the sub-carriage along its length is provided with two hinge plates arranged at intervals from each other. A vertical receiving groove is formed between the two hinge plates. A pin hole is provided on the hinge plate. The pluggable pin is rotatably installed in the pin hole. When the sub-carriage is in the retracted position, the first arm is parallel to the vehicle chassis, and the second arm is accommodated in the vertical receiving groove.

[0011] Furthermore, the separation structure includes a first engaging structure and a second engaging structure that engage with each other. The driving mechanism includes a hydraulic cylinder, the cylinder body of which is hinged to the vehicle chassis. The piston rod of the hydraulic cylinder is connected to the first engaging structure, and the second engaging structure is connected to a first end of the sub-carriage along its length. When the piston rod extends from the cylinder body, it can drive the first engaging structure to push the second engaging structure, causing the sub-carriage to move from the retracted position to the lowered position. When the sub-carriage is in the lowered position, the retraction movement of the piston rod can cause the first engaging structure and the second engaging structure to separate.

[0012] Furthermore, the cylinder body of the hydraulic cylinder is hinged to the vehicle chassis via a hinge shaft, and the end of the piston rod of the hydraulic cylinder is connected to a force-applying shaft. The axes of both the hinge shaft and the force-applying shaft are aligned with the width direction of the vehicle chassis. The first engaging structure includes a first elastic locking plate and a second elastic locking plate disposed at both axial ends of the force-applying shaft. The first elastic locking plate has a first locking hole, and the second elastic locking plate has a second locking hole. The second engaging structure includes a third elastic locking plate adjacent to the first elastic locking plate and a fourth elastic locking plate adjacent to the second elastic locking plate. A first locking head is provided on the first locking hole, and a second locking head is provided on the fourth elastic locking plate to lock into the second locking hole. When the piston rod extends from the cylinder, the first locking head can push the third elastic locking plate toward the falling position of the sub-carriage, and the second locking head can push the fourth elastic locking plate toward the falling position of the sub-carriage. When the sub-carriage is in the falling position, the retraction movement of the piston rod can drive the first locking head and the second locking head to move away from the sub-carriage, so that the first locking head is disengaged from the first locking hole and the second locking head is disengaged from the second locking hole.

[0013] Furthermore, the first elastic plate is provided with a first auxiliary push plate on the side of the first card hole away from the sub-carriage, and the second elastic plate is provided with a second auxiliary push plate on the side of the second card hole away from the sub-carriage. When the piston rod extends from the cylinder, the first auxiliary push plate can push the third elastic plate toward the falling position of the sub-carriage, and the second auxiliary plate can push the fourth elastic plate toward the falling position of the sub-carriage.

[0014] Furthermore, the sub-carriage sliding rail quick separation structure includes a linear limiting engagement structure disposed on the vehicle chassis. The linear limiting engagement structure extends along the length direction of the vehicle chassis. The linear limiting engagement structure can engage with or disengage from the sub-carriage. When the linear limiting engagement structure engages with the sub-carriage, the drive mechanism can drive the sub-carriage to move along the linear limiting engagement structure to the rear end of the vehicle chassis and reach above the falling position. When the sub-carriage is above the falling position, the separation of the first engaging structure and the second engaging structure allows the sub-carriage to rotate and fall to the falling position.

[0015] Furthermore, the linear limiting fit structure is provided with an assist structure. When the subcarriage is in the falling position, the assist structure can release the limiting fit of the subcarriage from the linear limiting fit structure and push the subcarriage out of the rear end of the vehicle chassis.

[0016] Furthermore, the linear limiting fit structure includes a linear guide rail that is vertically and flexibly disposed on the vehicle chassis. A lifting drive device connected to the lower end of the linear guide rail is disposed within the vehicle chassis. The linear guide rail is arranged along the length direction of the vehicle chassis. The linear guide rail can be raised to a working position protruding from the upper surface of the vehicle chassis or lowered to be hidden below the upper surface of the vehicle chassis. The linear guide rail includes a vertical rail portion and a horizontal rail portion disposed above the vertical rail portion. The vertical rail portion and the horizontal rail portion enable the linear guide rail to be vertically and flexibly disposed on the vehicle chassis. The linear guide rail has a T-shaped cross-section. Two limiting sliding columns facing each other are provided below the first end of the subcarriage along its length. When the linear guide rail is in the working position, the piston rod extends from the cylinder and drives the subcarriage to move toward the rear end of the vehicle chassis, causing the two limiting sliding columns to enter the two sides of the vertical track and be located below the horizontal track. The subcarriage is provided with a traveling wheel, which is supported on the vehicle chassis so that the lower surface of the subcarriage is higher than the linear guide rail in the working position.

[0017] Furthermore, the assist structure is a notch provided on the horizontal track section near the rear end of the vehicle chassis. One notch is provided on each side of the horizontal track section corresponding to the vertical track section. The side wall of the notch facing the rear end of the vehicle chassis forms a guide arc surface extending upward toward the rear end of the vehicle chassis. When the subcarriage is in the falling position, the linear guide slide rail can cause the limiting sliding column to disengage from the corresponding notch when it descends. When the limiting sliding column disengages from the corresponding notch, the guide arc surface forms a pressure on the limiting sliding column toward the rear end of the vehicle chassis.

[0018] The beneficial effects of the sub-carriage sliding rail quick separation structure provided by the present invention are as follows:

[0019] Compared to existing technologies, the sub-carriage sliding rail quick separation structure provided by this invention includes a sub-carriage, a drive mechanism, and a separation structure. 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 is supported on the ground. Moreover, the separation structure allows the drive mechanism to separate from the sub-carriage. At this point, on the one hand, the separated sub-carriage can be transported to drainage rescue sites that are inaccessible or inconvenient to reach by the whole vehicle through methods such as handling and pulling. On the other hand, compared to the sub-carriage in the retracted position, the drainage execution equipment in the lowered sub-carriage is easier to remove. Alternatively, after the sub-carriage is separated from the drive mechanism, it can be placed completely on the ground, making it easier for personnel to remove the drainage execution equipment from the sub-carriage. This sub-carriage sliding rail quick separation structure is particularly suitable for application on drainage rescue vehicles, improving the ease of access to the drainage execution equipment in the sub-carriage and enhancing the versatility of the sub-carriage and the drainage execution equipment within it for various usage scenarios.

[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 partial side view of a subcarriage sliding rail quick separation structure according to an embodiment of this application, when the subcarriage is in the lowering position;

[0023] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 This is a three-dimensional schematic diagram of a portion of the structure of a sub-carriage sliding rail quick separation structure according to an embodiment of this application when applied to a drainage and emergency rescue vehicle.

[0025] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0026] Figure 5 This is a side view of a sub-carriage sliding rail quick separation structure according to an embodiment of this application when applied to a drainage emergency vehicle, wherein the sub-carriage is in the lowered position;

[0027] Figure 6This is another side view of the sub-carriage sliding rail quick separation structure according to an embodiment of this application when applied to a drainage emergency vehicle, wherein the sub-carriage is in the retracted position;

[0028] Figure 7 This is a perspective view of a sub-carriage sliding rail quick separation structure according to an embodiment of this application applied to a drainage and emergency rescue vehicle;

[0029] Figure 8 for Figure 7 Enlarged view of point C in the middle;

[0030] Figure 9 This is a partial three-dimensional schematic diagram of a sub-carriage sliding rail quick separation structure according to an embodiment of this application when applied to a drainage and emergency rescue vehicle;

[0031] Figure 10 for Figure 9 Enlarged view of point D in the middle;

[0032] Figure 11 This is a partial perspective view of a portion of the structure of a sub-carriage sliding rail quick separation structure according to an embodiment of this application when applied to a drainage and emergency rescue vehicle.

[0033] Figure 12 for Figure 11 Enlarged view at point E in the middle;

[0034] Figure 13 for Figure 11 Enlarged view at point F;

[0035] Figure 14 This is a partial assembly diagram of a sub-carriage sliding rail type quick separation structure according to an embodiment of this application;

[0036] Figure 15 This is a perspective view of the subcarriage in a sliding rail quick separation structure according to an embodiment of this application;

[0037] Figure 16 for Figure 15 Enlarged view of point G in the middle;

[0038] Figure 17 This is a schematic diagram of the movable opening and closing structure in a sliding rail quick separation structure of a sub-carriage according to an embodiment of this application.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1-Vehicle chassis; 2-Main compartment; 3-Cockpit; 4-Pluggable pin; 5-Hinge plate; 6-Hinge shaft; 7-Sub-compartment; 8-Force application shaft; 9-First elastic clamping plate; 10-Hydraulic cylinder; 11-Second elastic clamping plate; 12-First clamping hole; 13-Second clamping hole; 14-Third elastic clamping plate; 15-Fourth elastic clamping plate; 16-First clamping head; 17-Second clamping head; 18-First auxiliary push plate; 19-The 2. Auxiliary push plate; 20. Limiting sliding column; 21. Traveling wheel; 22. Lower extension plate; 100. Rotating arm; 101. First arm; 102. First arm; 200. Linear guide rail; 201. Vertical track section; 202. Horizontal track section; 203. Notch; 204. Guide arc surface; 205. Stop; 300. Movable opening and closing structure; 301. Telescopic cylinder; 302. Clamping arm; 303. Clamping head. Detailed Implementation

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] See Figures 1 to 6 This application provides a sub-carriage sliding rail type quick separation structure, wherein the sub-carriage sliding rail type quick separation structure includes:

[0046] The vehicle chassis 1 and the subcarriage 7 movably mounted on the vehicle chassis 1 are equipped with drainage execution equipment. The vehicle chassis 1 can also be equipped with a fixed mother carriage 2, which contains a generator set, a floating placement chamber, a submersible pump chamber, etc. The drainage execution equipment can be a drainage rescue robot or a tracked mobile pumping station, etc.

[0047] 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 is supported on the ground. In the retracted position, the subcarriage 7 is fully supported on the vehicle chassis 1.

[0048] The separation structure connects the drive mechanism to the sub-carriage 7. When the sub-carriage 7 is in the lowering position, the separation structure enables the drive mechanism to separate from the sub-carriage 7.

[0049] Because the subcarriage sliding rail quick separation structure provided by the present invention includes a subcarriage 7, a drive mechanism, and a separation structure, the drive mechanism can drive the subcarriage 7 to move between a retracted position and a lowered position. In the lowered position, at least a part of the subcarriage 7 leaves the vehicle chassis 1 and is supported on the ground. Moreover, the separation structure can separate the drive mechanism from the subcarriage 7. At this time, on the one hand, the separated subcarriage 7 can be transported to drainage rescue sites that are inaccessible or inconvenient to reach by means of handling or pulling a vehicle. On the other hand, compared with the subcarriage 7 in the retracted position, the drainage execution equipment in the subcarriage 7 in the lowered position is easier to take out. Alternatively, after the subcarriage 7 is separated from the drive mechanism, it can be placed completely on the ground, making it easier for personnel to take out the drainage execution equipment in the subcarriage 7. This subcarriage sliding rail quick separation structure is particularly suitable for application on drainage rescue vehicles, which can improve the ease of taking out and putting away the drainage execution equipment in the subcarriage 7, and improve the diversified adaptability of the subcarriage 7 and the drainage execution equipment therein in the application scenarios.

[0050] According to one embodiment of this application, the separation structure is a pluggable pin 4, which can be a manual pin or an electric telescopic pin. 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 in the length direction via the pluggable pin 4. 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 the 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 the second direction and pull the subcarriage 7 back to the vehicle chassis 1. The first direction and the second direction are opposite. For example, when the first direction is clockwise, the second direction is counterclockwise.

[0051] According to another embodiment of this application, the separation structure is a structure in which the hook and the shaft cooperate.

[0052] See Figure 17 According to another embodiment of this application, the separation structure is a movable opening and closing clamping structure 300. The movable opening and closing clamping structure 300 includes two clamping arms 302 that are opened and closed by a telescopic cylinder 301 (which can also be replaced by a hydraulic cylinder, a lead screw and nut mechanism, or an electric push rod mechanism). The clamping arms 302 are provided with clamps 303. The two clamps 303 open or close to each other to release or clamp the clamped parts of the rod-shaped or column-shaped structure on the subcarriage.

[0053] According to a specific 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 in the longitudinal direction. The piston rod is hinged to the first arm 101. The first end of the subcarriage 7 in the longitudinal direction is provided with two hinge plates 5 arranged at intervals from each other. A vertical receiving groove is formed between the two hinge plates 5. A pin hole is provided on the hinge plate 5. A pluggable pin 4 is rotatably installed in the pin hole. 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.

[0054] See Figures 7 to 16According to another embodiment of this application, the separation structure includes a first engagement structure and a second engagement structure that engage with each other. The driving mechanism includes a hydraulic cylinder 10. The cylinder body of the hydraulic cylinder 10 is hinged to the vehicle chassis 1. The piston rod of the hydraulic cylinder 10 is connected to the first engagement structure. The second engagement structure is connected to the first end of the sub-carriage 7 in the length direction. When the piston rod extends from the cylinder body, it can drive the first engagement structure to push the second engagement structure so that the sub-carriage 7 moves from the retracted position to the lowered position. When the sub-carriage 7 is in the lowered position, the retraction movement of the piston rod can drive the first engagement structure and the second engagement structure to separate.

[0055] According to one embodiment of this application, the cylinder body of the hydraulic cylinder 10 is hinged to the vehicle chassis 1 via a hinge shaft 6. The end of the piston rod of the hydraulic cylinder 10 is connected to a force-applying shaft 8. The axes of both the hinge shaft 6 and the force-applying shaft 8 are aligned with the width direction of the vehicle chassis 1. The first engaging structure includes a first elastic locking plate 9 and a second elastic locking plate 11 disposed at both axial ends of the force-applying shaft 8. The first elastic locking plate 9 is provided with a first locking hole 12, and the second elastic locking plate 11 is provided with a second locking hole 13. The second engaging structure includes a component adjacent to the first elastic locking plate. The third elastic plate 14 and the fourth elastic plate 15, which are provided adjacent to the second elastic plate 11, can be welded to the subcarriage 7 or detachably connected to the subcarriage 7 by threaded fasteners. The third elastic plate 14 is provided with a first locking head 16 that engages in the first locking hole 12, and the fourth elastic plate 15 is provided with a second locking head 17 that engages in the second locking hole 13. When the piston rod extends from the cylinder body, the first locking head 16 can push the third elastic plate 14 towards the falling position of the subcarriage 7. The first elastic plate 14 and the second elastic plate 17 can push the fourth elastic plate 15 towards the falling position of the sub-carriage 7. When the sub-carriage 7 is in the falling position, the piston rod retracts, which can drive the first elastic plate 16 and the second elastic plate 17 to move the sub-carriage 7, so that the first elastic plate 16 is disengaged from the first locking hole 12 and the second elastic plate 17 is disengaged from the second locking hole 13. The first elastic plate 9, the second elastic plate 11, the third elastic plate 14 and the fourth elastic plate 15 can be metal plates with a certain degree of elasticity. 6. The second clamping head 17 is preferably a hemispherical clamping head. The third elastic clamping plate 14 and the fourth elastic clamping plate 15 can be located between the first elastic clamping plate 9 and the second elastic clamping plate 11. When the third elastic clamping plate 14 and the fourth elastic clamping plate 15 are stretched relative to the first elastic clamping plate 9 and the second elastic clamping plate 11, the third elastic clamping plate 14 and the fourth elastic clamping plate 15 bend away from the first elastic clamping plate 9 and the second elastic clamping plate 11 respectively, so that the first clamping head 16 is dislodged from the first clamping hole 12 and the second clamping head 17 is dislodged from the second clamping hole 13.

[0056] According to a preferred embodiment of this application, a first elastic plate 9 is provided with a first auxiliary push plate 18 on the side of the first locking hole 12 away from the subcarriage 7, and a second elastic plate 11 is provided with a second auxiliary push plate 19 on the side of the second locking hole 13 away from the subcarriage 7. When the piston rod of the hydraulic cylinder 10 extends from the cylinder body, the first auxiliary push plate 18 can push the third elastic plate 14 toward the falling position of the subcarriage 7, and the second auxiliary plate can push the fourth elastic plate 15 toward the falling position of the subcarriage 7. The advantage of this embodiment is that when the piston rod extends from the cylinder body, it can effectively avoid the phenomenon that the first locking head 16 may accidentally come out of the first locking hole 12 and the second locking head 17 may accidentally come out of the second locking hole 13, which may be caused by the piston rod pushing the subcarriage 7 entirely through the first elastic plate 9 and the second elastic plate 11 pushing the first locking head 16 and the second locking head 17.

[0057] According to a specific embodiment of this application, the first auxiliary push plate 18 and the second auxiliary push plate 19 are arc-shaped plates. The arc-shaped plates form concave surfaces facing the corresponding third elastic plate 14 and fourth elastic plate 15, ensuring that when the third elastic plate 14 rotates relative to the first elastic plate 9 about the axis of the first card hole 12 and when the fourth elastic plate 15 rotates relative to the second elastic plate 11 about the axis of the second card hole 13, the first auxiliary push plate 18 can still make good contact with the third elastic plate 14 and the second auxiliary push plate 19 can still make good contact with the fourth elastic plate 15.

[0058] According to one embodiment of this application, the subcarriage sliding rail quick separation structure includes a linear limiting engagement structure disposed on the vehicle chassis 1. The linear limiting engagement structure extends along the length direction of the vehicle chassis 1. The linear limiting engagement structure can engage or disengage with the subcarriage 7. When the linear limiting engagement structure engages with the subcarriage 7, the drive mechanism can drive the subcarriage 7 to move along the linear limiting engagement structure to the rear end of the vehicle chassis 1 and reach above the falling position. When the subcarriage 7 is above the falling position, the separation of the first engaging structure and the second engaging structure can cause the subcarriage 7 to rotate and fall to the falling position. In addition, in the retracted position, the subcarriage 7 is adjacent to the rear end of the vehicle chassis 1. The first end of the subcarriage 7 in the length direction faces the front of the drainage and rescue vehicle. The front of the drainage and rescue vehicle is provided with a driver's cab 3. The second end of the subcarriage 7 faces away from the front of the drainage and rescue vehicle.

[0059] In addition, the linear limiting structure is equipped with an assist structure. When the subcarriage 7 is in the falling position, the assist structure can release the limiting fit of the linear limiting structure subcarriage 7 and push the subcarriage 7 out of the rear end of the vehicle chassis 1.

[0060] According to a specific embodiment of this application, the linear limiting fit structure includes a linear guide rail 200 that is movably mounted on the vehicle chassis 1. A lifting drive device (e.g., a lifting drive cylinder) connected to the lower end of the linear guide rail 200 is provided inside the vehicle chassis 1. The linear guide rail 200 is arranged along the length direction of the vehicle chassis 1. The linear guide rail 200 can be raised to a working position protruding from the upper surface of the vehicle chassis 1 or lowered and hidden below the upper surface of the vehicle chassis 1. The linear guide rail 200 includes a vertical track portion 201 and a horizontal track portion 202 disposed above the vertical track portion 201. The vertical track portion 201 and the horizontal track portion 202 make the cross-section of the linear guide rail 200 T-shaped. Two mutually... When the linear guide rail 200 is in the working position, the piston rod of the hydraulic cylinder 10 extends from the cylinder body and drives the subcarriage 7 to move toward the rear end of the vehicle chassis 1, so that the two limiting sliding columns 20 enter the two sides of the vertical track section 201 and are located below the horizontal track section 202. The two limiting sliding columns 20 are connected to the lower part of the subcarriage 7 through corresponding lower extension plates 22. The two limiting sliding columns 20 form a limit with the vertical track section 201 on both sides of the vertical track section 201, and the two lower extension plates 22 form a limit with the horizontal track section 202 on both sides of the horizontal track section 202. The subcarriage 7 is provided with a traveling wheel 21, which is supported on the vehicle chassis 1 so that the lower surface of the subcarriage 7 is higher than the linear guide rail 200 in the working position. The assist structure is a notch 203 located at the rear end of the horizontal track section 202 near the vehicle chassis 1. There is one notch 203 on each side of the horizontal track section 202 corresponding to the vertical track section 201. The linear guide rail 200 forms a baffle 205 below the corresponding notch 203. The side wall of the notch 203 facing the rear end of the vehicle chassis 1 forms a guide arc surface 204 extending upward toward the rear end of the vehicle chassis 1. When the subcar 7 is in the falling position, the baffle 205 can limit the limiting sliding column 20 along the length direction of the linear guide rail 200. When the linear guide rail 200 descends, it can make the limiting sliding column 20 move upward and disengage from the corresponding notch 203. When the limiting sliding column 20 disengages from the corresponding notch 203, the guide arc surface 204 forms a compression of the limiting sliding column 20 toward the rear end of the vehicle chassis 1, thereby completely pushing the entire subcar 7 toward the rear end of the vehicle chassis 1.

[0061] 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 sliding rail type quick separation structure for a carriage, characterized in that, The sub-carriage sliding rail quick separation structure includes: The vehicle chassis and a subcarriage movably mounted on the vehicle chassis, wherein a drainage actuator is provided in the subcarriage; 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 is off the vehicle chassis and supported on the ground. In the retracted position, the subcarriage is fully supported on the vehicle chassis. A separation structure is provided, in which the drive mechanism is connected to the sub-carriage via the separation structure. When the sub-carriage is in the falling position, the separation structure enables the drive mechanism to separate from the sub-carriage. The separation structure includes a first engagement structure and a second engagement structure that engage with each other. The driving mechanism includes a hydraulic cylinder. The cylinder body of the hydraulic cylinder is hinged to the vehicle chassis. The piston rod of the hydraulic cylinder is connected to the first engagement structure. The second engagement structure is connected to a first end of the sub-carriage along its length. When the piston rod extends from the cylinder body, it can drive the first engagement structure to push the second engagement structure so that the sub-carriage moves from the retracted position to the lowered position. When the sub-carriage is in the lowered position, the retraction movement of the piston rod can cause the first engagement structure and the second engagement structure to separate. The cylinder body of the hydraulic cylinder is hinged to the vehicle chassis via a hinge shaft. The piston rod of the hydraulic cylinder is connected to a force-applying shaft at its end. The axes of both the hinge shaft and the force-applying shaft are aligned with the width direction of the vehicle chassis. The first engaging structure includes a first elastic locking plate and a second elastic locking plate disposed at both axial ends of the force-applying shaft. The first elastic locking plate has a first locking hole, and the second elastic locking plate has a second locking hole. The second engaging structure includes a third elastic locking plate adjacent to the first elastic locking plate and a fourth elastic locking plate adjacent to the second elastic locking plate. The third elastic locking plate has... A first locking head is inserted into the first locking hole, and a second locking head is provided on the fourth elastic locking plate to be inserted into the second locking hole. When the piston rod extends from the cylinder, the first locking head can push the third elastic locking plate toward the falling position of the sub-carriage, and the second locking head can push the fourth elastic locking plate toward the falling position of the sub-carriage. When the sub-carriage is in the falling position, the retraction movement of the piston rod can drive the first locking head and the second locking head to move away from the sub-carriage, so that the first locking head is dislodged from the first locking hole and the second locking head is dislodged from the second locking hole.

2. The sub-carriage sliding rail quick separation structure according to claim 1, characterized in that, The first elastic plate has a first auxiliary push plate on the side of the first locking hole away from the subcarriage, and the second elastic plate has a second auxiliary push plate on the side of the second locking hole away from the subcarriage. When the piston rod extends from the cylinder, the first auxiliary push plate can push the third elastic plate toward the falling position of the subcarriage, and the second auxiliary push plate can push the fourth elastic plate toward the falling position of the subcarriage.

3. The sub-carriage sliding rail type quick separation structure according to claim 2, characterized in that, The subcarriage sliding rail quick separation structure includes a linear limiting engagement structure disposed on the vehicle chassis. The linear limiting engagement structure extends along the length direction of the vehicle chassis. The linear limiting engagement structure can engage or disengage with the subcarriage. When the linear limiting engagement structure engages with the subcarriage, the drive mechanism can drive the subcarriage to move along the linear limiting engagement structure to the rear end of the vehicle chassis and reach above the falling position. When the subcarriage is above the falling position, the separation of the first engaging structure and the second engaging structure allows the subcarriage to rotate and fall to the falling position.

4. The sub-carriage sliding rail type quick separation structure according to claim 3, characterized in that, The linear limiting fit structure is provided with an assist structure. When the subcarriage is in the falling position, the assist structure can release the limiting fit of the subcarriage from the linear limiting fit structure and push the subcarriage out of the rear end of the vehicle chassis.

5. The sub-carriage sliding rail type quick separation structure according to claim 4, characterized in that, The linear limiting fit structure includes a linear guide rail that is movably mounted on the vehicle chassis. A lifting drive device connected to the lower end of the linear guide rail is provided within the vehicle chassis. The linear guide rail is arranged along the length of the vehicle chassis. The linear guide rail can be raised to a working position protruding above the upper surface of the vehicle chassis or lowered and hidden below the upper surface of the vehicle chassis. The linear guide rail includes a vertical rail portion and a horizontal rail portion disposed above the vertical rail portion. The vertical rail portion and the horizontal rail portion enable the linear guide rail to... The guide rail has a T-shaped cross-section. Two limiting sliding columns facing each other are arranged below the first end of the sub-carriage along its length. When the linear guide rail is in the working position, the piston rod extends from the cylinder and drives the sub-carriage to move toward the rear end of the vehicle chassis, causing the two limiting sliding columns to enter the two sides of the vertical track and be located below the horizontal track. The sub-carriage is provided with a traveling wheel, which is supported on the vehicle chassis so that the lower surface of the sub-carriage is higher than the linear guide rail in the working position.

6. The sub-carriage sliding rail type quick separation structure according to claim 5, characterized in that, The assist structure is a notch located near the rear end of the vehicle chassis on the horizontal track section. One notch is provided on each side of the horizontal track section corresponding to the vertical track section. The side wall of the notch facing the rear end of the vehicle chassis forms a guide arc surface extending upward toward the rear end of the vehicle chassis. When the subcarriage is in the falling position, the linear guide slide rail can cause the limiting sliding column to disengage from the corresponding notch when it descends. When the limiting sliding column disengages from the corresponding notch, the guide arc surface forms a pressure on the limiting sliding column toward the rear end of the vehicle chassis.

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