Self-adaptive obstacle-avoiding suction device for sanitation vehicle

Abstract

The utility model discloses a kind of self-adaptive environmental sanitation vehicle obstacle avoidance suction devices, including the suction cavity of setting with walking wheel, and the front rubber plate and side wall of being located in suction cavity each side, side wall includes rear side wall, left side wall and right side wall, each side wall is connected between suction cavity by detachable guiding energy-absorbing component;The guiding shaft upper end of the guiding energy-absorbing component is sequentially penetrated to the guiding plate of corresponding side wall located in lower side, an energy-absorbing spring, and the guiding plate of being located in upside, again with the thread connection of surrounding plate fastening nut;When each side wall bottom is subjected to upward external force, guiding shaft can be driven to slide upwards relative to guiding plate to compress the energy-absorbing spring, and make side wall reset by the resilience of energy-absorbing spring.The side wall of the utility model can be moved upwards along guiding energy-absorbing component in the process of contacting with deceleration zone or concave-convex road surface, avoid rigid collision, simultaneously will not lead to suction device abnormal lifting, will not affect the suction effect of suction device.

Description

Technical Field

[0001] This utility model relates to the field of sanitation equipment technology, specifically, it is an adaptive sanitation vehicle obstacle avoidance and suction device. Background Technology

[0002] In the sanitation sector, sanitation vehicles are widely used for cleaning operations on roads at all levels. These sanitation vehicles are typically equipped with a suction device, which is supported by wheels and forms a negative pressure chamber near the ground to suck up litter from the road surface.

[0003] Due to the complexity of actual road conditions, there are often uneven areas such as speed bumps, manhole covers, and bumps or potholes caused by road repairs. Traditional sanitation trucks' suction devices typically have their chambers and left, right, and rear side panels welded together as a single unit. During operation, the suction device has a low ground clearance and is limited by the installation spacing of the front and rear wheels. When one side's wheel crosses an obstacle, the main body of the suction device may tilt, causing the other side's side panel to make hard contact with the ground. This collision not only causes wear, deformation, or even damage to the side panels, but more seriously, the reaction force from the ground can lift the entire suction device upwards, disrupting the negative pressure environment inside the suction chamber. This drastic change in the internal and external pressure difference causes a sudden drop in suction capacity, resulting in litter residue on the road and affecting the sanitation effect.

[0004] Therefore, there is an urgent need for a suction device that can adapt to uneven road surfaces, avoid hard collisions, and maintain a stable suction effect. Utility Model Content

[0005] To address the aforementioned technical problems, the present invention aims to provide an adaptive sanitation vehicle obstacle avoidance suction device. This suction device enables the side panels of the suction cavity to automatically move upwards to avoid road obstacles, thus preventing hard collisions with the ground and the resulting abnormal lifting of the entire suction device, thereby ensuring the continuity and efficiency of the suction operation.

[0006] The present invention solves the above problems through the following technical solution:

[0007] An adaptive sanitation vehicle obstacle avoidance and suction device includes: a suction cavity with wheels, and a front rubber plate and side panels located on each side wall of the suction cavity. The side panels include a rear side panel, a left side panel, and a right side panel. Each side panel is connected to the suction cavity via a detachable guide energy-absorbing assembly. The guide energy-absorbing assembly includes: a plurality of guide plates arranged in pairs, a guide shaft fixed to each side panel, and an energy-absorbing spring and a panel fastening nut sleeved on the guide shaft. The upper end of the guide shaft passes through a guide plate located on the lower side of the corresponding side panel, an energy-absorbing spring, and a guide plate located on the upper side in sequence, and is then threadedly connected to the panel fastening nut. When the bottom of each side panel is subjected to an upward external force, it can drive the guide shaft to slide upward relative to the guide plate to compress the energy-absorbing spring, and the side panel is reset by the rebound force of the energy-absorbing spring.

[0008] As a further improvement, the guide shaft is formed with a stepped surface that abuts against the lower end of the energy-absorbing spring.

[0009] As a further improvement, the guide plate includes a lower side guide plate and an upper side guide plate fixed to the left and right side walls of the suction cavity, and a lower rear guide plate and an upper rear guide plate fixed to the rear side wall of the suction cavity; the guide shaft includes a first guide shaft respectively disposed on the left side panel and the right side panel, and a second guide shaft disposed on the rear side panel.

[0010] As a further improvement, the front part of the rear upper guide plate is bent downward to form an inverted "L" shape.

[0011] As a further improvement, the left and right side panels are each provided with a side folding plate and a first nylon block, the first nylon block being fixed inside the first side folding plate and having its lowest point extending out of the first side folding plate; the rear side panel is provided with a rear folding plate and a second nylon block, the second nylon block being fixed inside the rear folding plate and having its lowest point lower than the rear folding plate.

[0012] As a further improvement, the first guide shaft is welded to the side folding plate and the second guide shaft is welded to the rear folding plate.

[0013] As a further improvement, the side folding plate and the rear folding plate are inverted "L" shaped structures.

[0014] As a further improvement, a traveling wheel is installed at each of the four corners of the bottom of the suction cavity. The mounting base of the traveling wheel is provided with a traveling wheel adjustment bolt, and the installation height of the traveling wheel can be adjusted by rotating the traveling wheel adjustment bolt.

[0015] As a further improvement, the front rubber plate is flexibly connected to the lower front side of the suction cavity by bolts.

[0016] As a further improvement, the ground clearance of each of the side panels is 8-10 mm.

[0017] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0018] This utility model assembles the suction chamber of the sanitation vehicle suction device with the left, right, and rear side panels. A guide energy-absorbing component is installed between each side panel and the suction chamber. When the suction device encounters a speed bump or uneven road surface during operation, the left, right, and rear side panels move upward along the guide energy-absorbing component under the action of ground reaction force during contact with the speed bump or uneven road surface, avoiding hard collisions. At the same time, it will not cause the suction device to be abnormally raised, and will not affect the suction effect of the suction device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an adaptive sanitation vehicle obstacle avoidance and suction device according to the present invention;

[0020] Figure 2 This is a schematic diagram of the front and right sides of an adaptive sanitation vehicle obstacle avoidance and suction device according to the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the guiding energy absorption component of this utility model;

[0022] Figure 4 This is an enlarged schematic diagram of the left side panel and guide plate of this utility model;

[0023] Figure 5 This is an exploded view of an adaptive sanitation vehicle obstacle avoidance and pickup device according to the present invention.

[0024] Reference numerals: 1. Left side panel; 1-1. Side folding plate; 1-2. First nylon block; 1-3. First guide shaft; 2. Energy-absorbing spring; 3. Panel fastening nut; 4. Pickup cavity; 4-1. Lower side guide plate; 4-2. Upper side guide plate; 4-3. Lower rear guide plate; 4-4. Upper rear guide plate; 5. Wheel adjustment bolt; 6. Wheel; 7. Rear side panel; 7-1. Second nylon block; 7-2. Rear folding plate; 7-3. Second guide shaft; 8. Right side panel; 9. Front rubber plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example:

[0027] Combined with appendix Figure 1-5 As shown, an adaptive sanitation vehicle obstacle avoidance suction device is provided. The suction cavity of the suction device for sanitation vehicles is assembled with the left, right, and rear side panels. A guide energy-absorbing component is provided between each side panel and the suction cavity. When the suction device encounters a speed bump or uneven road surface during operation, the left, right, and rear side panels move upward along the guide energy-absorbing component under the action of ground reaction force during contact with the speed bump or uneven road surface, avoiding hard collision. At the same time, it will not cause the suction device to be abnormally raised, and will not affect the suction effect of the suction device. The suction device includes: a left side panel 1, an energy-absorbing spring 2, a panel fastening nut 3, a suction cavity 4, a traveling wheel adjusting bolt 5, a traveling wheel 6, a rear side panel 7, a right side panel 8, and a front rubber plate 9. The front rubber plate 9, the left side panel 1, the right side panel 8, and the rear side panel 7 are respectively located at the front, left, right, and rear of the suction cavity 4. Each of the side panels of the left side panel 1, the right side panel 8, and the rear side panel 7 is connected to the suction cavity 4 through a detachable guide energy-absorbing assembly.

[0028] Specifically, the guiding energy-absorbing assembly includes: several guide plates arranged in pairs, fixed to the pickup cavity 4; guide shafts fixed to each side panel; and energy-absorbing springs 2 and panel fastening nuts 3 sleeved on the guide shafts. The upper end of the guide shaft passes through a lower guide plate, an energy-absorbing spring 2, and an upper guide plate in sequence, and is then threadedly connected to the panel fastening nut 3 for fastening. By adjusting the screw depth of the panel fastening nut 3, the initial ground clearance of each side panel can be adjusted, and a preload can be applied to the panel fastening nut 3. The guide shaft has a step, so that when the bottom of each side panel is subjected to an upward external force and moves upward, it drives the guide shaft to move upward, allowing the guide shaft to slide upward relative to the lower guide plate. This causes the step surface on the step to abut against the lower end of the energy-absorbing spring 2, compressing the energy-absorbing spring 2. The rebound force of the energy-absorbing spring 2 causes each side panel to move downward and return to its original position.

[0029] Furthermore, the guide plates include a pair of lower side guide plates 4-1 and upper side guide plates 4-2 arranged vertically on the left side wall of the suction cavity 4, a pair of lower side guide plates 4-1 and upper side guide plates 4-2 arranged vertically on the right side wall of the suction cavity 4, and a pair of lower rear guide plates 4-3 and upper rear guide plates 4-4 arranged vertically on the rear side wall of the suction cavity 4; the guide shafts include a first guide shaft 1-3 and a second guide shaft 7-3; the first guide shaft 1-3 on the left side panel 1 and the right side panel 8 respectively passes through the lower side guide plate, the energy-absorbing spring 2 and the upper side guide plate on the corresponding side, and the second guide shaft 7-3 on the rear side panel 7 passes through the lower rear guide plate 4-3, the energy-absorbing spring 2 and the upper rear guide plate 4-4.

[0030] The left side panel 1 and the right side panel 8 are each provided with a first guide shaft 1-3, a side folding plate 1-1, and a first nylon block 1-2. The first nylon block 1-2 is fixed inside the side folding plate 1-1 by bolts, and its lowest point is set below the first side folding plate 1-1 so that it can directly contact the ground or other objects. The lower end of the first guide shaft 1-3 is welded and fixed above the side folding plate 1-1 and extends vertically upward. Preferably, the side folding plate 1-1 has an inverted "L" shape structure so as to cover the first nylon block 1-2.

[0031] Correspondingly, the rear panel 7 is provided with a second guide shaft 7-3, a second nylon block 7-1, and a rear folding plate 7-2. The second nylon block 7-1 is fixed inside the rear folding plate 7-2 by bolts, and its lowest point is set below the rear folding plate 7-2 so that it can directly contact the ground or other objects. The lower end of the second guide shaft 7-3 is welded and fixed above the rear folding plate 7-2 and extends vertically upward. Preferably, the rear folding plate 7-2 has an inverted "L" shape structure so as to cover the second nylon block 7-1.

[0032] In one optional embodiment, an adaptive sanitation vehicle obstacle avoidance suction device has a suction cavity 4 that is generally box-shaped, with a wheel 6 bolted to each of its four bottom corners. The mounting base of the wheel 6 is provided with a wheel adjustment bolt 5, which allows for fine-tuning of the wheel 6's mounting height by rotating it. For example, in this embodiment, a nut is provided on the wheel adjustment bolt 5, and the nut is located above the mounting base. One end of the wheel adjustment bolt 5 is sequentially connected to the nut, the mounting base, and the mounting plate of the wheel 6. By adjusting the height of the nut on the wheel adjustment bolt 5, the mounting height of the wheel 6 can be adjusted.

[0033] The front rubber plate 9 is flexibly connected to the lower front side of the suction chamber 4 by bolts, which is used to conform to the road surface and initially guide the garbage in.

[0034] A guide plate assembly consisting of a lower side guide plate 4-1 and an upper side guide plate 4-2 is welded parallel to each other on the left side wall of the suction cavity 4, with coaxial guide holes in the center of both. Similarly, a guide plate assembly with the same structure is symmetrically arranged on the right side wall. A lower rear guide plate 4-3 and a higher rear guide plate 4-4 are welded parallel to each other on the rear side wall of the suction cavity 4. Preferably, the front part of the upper rear guide plate 4-4 is bent downward to form an inverted "L" shape.

[0035] A first nylon block 1-2 is bolted to the inner side of the side fold 1-1 of the left side panel 1. The lower end of the first guide shaft 1-3 is welded and fixed to the side fold 1-1 and extends vertically upward. The structure of the right side panel 8 is completely symmetrical to that of the left side panel 1. A second nylon block 7-1 is bolted to the inner side of the rear fold 7-2 of the rear side panel 7. The lower end of the second guide shaft 7-3 is welded and fixed to the rear fold 7-2 and extends vertically upward.

[0036] The assembly process is as follows:

[0037] The first guide shaft 1-3 of the left side panel 1 is passed sequentially from bottom to top through the guide hole of the lower left guide plate 4-1, an energy-absorbing spring 2, and the guide hole of the upper left guide plate 4-2, and then the panel fastening nut 3 is screwed onto the shaft end. The right side panel 8 is assembled in the same manner. The second guide shaft 7-3 of the rear side panel 7 is passed sequentially from bottom to top through the guide hole of the lower rear guide plate 4-3, an energy-absorbing spring 2, and the guide hole of the upper rear guide plate 4-4, and then locked with the panel fastening nut 3.

[0038] Initial adjustments:

[0039] Loosen the side panel fastening nuts 3, and adjust the height of the left side panel 1, right side panel 8, and rear side panel 7 so that the gap between the first nylon block 1-2 and the second nylon block 7-1 at their bottom and the ground is 8-10mm. Then, initially tighten the side panel fastening nuts 3. Next, adjust the four wheel adjusting bolts 5, ensuring that the ground clearance of each nylon block remains unchanged, so that the wheel surfaces of all four wheels 6 are in contact with the ground and bear the main support. Finally, fully tighten the bolts of the wheels 6 and the side panel fastening nuts 3.

[0040] Work process:

[0041] like Figure 4 As shown, when a sanitation vehicle carrying the suction device is operating, the suction device tilts at the instant the two front wheels 6 cross a speed bump, while the two rear wheels 6 have not yet crossed it. At this moment, the first nylon block 1-2 at the bottom of the right-side panel 8, located on one side of the speed bump, will contact the inclined surface of the speed bump. The reaction force exerted by the ground on the nylon block pushes the right-side panel 8 upward. The right-side panel 8 drives its first guide shaft 1-3 to overcome the elastic force of the energy-absorbing spring 2 and slide vertically upward along the guide holes of the lower side guide plate 4-1 and the upper side guide plate 4-2, completing self-obstacle avoidance. At this time, the right-side panel 8 achieves lifting relative to the suction cavity 4, smoothly "climbing" over the speed bump and avoiding a hard collision.

[0042] Throughout the process, the height and posture of the pickup chamber 4 were determined by the four wheels 6, remaining relatively stable without any abnormal lifting. The energy-absorbing spring 2 absorbed most of the impact energy. After the right-side panel 8 completely passed the obstacle, under the restoring force of the energy-absorbing spring 2, the first guide shaft 1-3 drove the right-side panel 8 to slide down, restoring it to its initial ground clearance.

[0043] The obstacle avoidance principle of the left side panel 1 and the rear side panel 7 is the same.

[0044] Although the present invention has been described herein with reference to illustrative embodiments, the above embodiments are merely preferred embodiments of the present invention, and the implementation of the present invention is not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in this application.

Claims

1. An adaptive sanitation vehicle obstacle avoidance and suction device, characterized in that, include: The suction chamber is equipped with wheels, and the front rubber plate and side panels are located on each side wall of the suction chamber. The side panels include a rear side panel, a left side panel and a right side panel. Each side panel is connected to the suction chamber through a detachable guide energy absorption assembly. The guiding energy-absorbing assembly includes: several guide plates arranged in pairs, a guide shaft fixed to each side panel, an energy-absorbing spring and a panel fastening nut sleeved on the guide shaft. The upper end of the guide shaft passes through a guide plate on the lower side of the corresponding side panel, an energy-absorbing spring, and a guide plate on the upper side in sequence, and is then threadedly connected to the panel fastening nut. When the bottom of each side panel is subjected to an upward external force, it can drive the guide shaft to slide upward relative to the guide plate to compress the energy-absorbing spring, and the side panel is reset by the rebound force of the energy-absorbing spring.

2. The adaptive sanitation vehicle obstacle avoidance and suction device according to claim 1, characterized in that, The guide shaft has a stepped surface that abuts against the lower end of the energy-absorbing spring.

3. The adaptive sanitation vehicle obstacle avoidance and suction device according to claim 1, characterized in that, The guide plate includes a lower side guide plate and an upper side guide plate fixed to the left and right side walls of the suction cavity, and a lower rear guide plate and an upper rear guide plate fixed to the rear side wall of the suction cavity. The guide shaft includes a first guide shaft disposed on the left side panel and the right side panel respectively, and a second guide shaft disposed on the rear side panel.

4. The adaptive sanitation vehicle obstacle avoidance and suction device according to claim 3, characterized in that, The front part of the upper rear guide plate bends downward to form an inverted "L" shape.

5. The adaptive sanitation vehicle obstacle avoidance and suction device according to claim 3, characterized in that, Both the left and right side panels are provided with side folding plates and first nylon blocks, with the first nylon blocks fixed inside the first side folding plates and extending out of the first side folding plates at their lowest points. The rear panel is provided with a rear folding plate and a second nylon block. The second nylon block is fixed inside the rear folding plate, and its lowest point is set below the rear folding plate.

6. The adaptive sanitation vehicle obstacle avoidance and suction device according to claim 5, characterized in that, The first guide shaft is welded to the side folding plate, and the second guide shaft is welded to the rear folding plate.

7. The adaptive sanitation vehicle obstacle avoidance and suction device according to claim 5, characterized in that, The side folding plate and the rear folding plate have an inverted "L" shape structure.

8. The adaptive sanitation vehicle obstacle avoidance and suction device according to claim 1, characterized in that, Each of the four corners at the bottom of the suction chamber is equipped with a traveling wheel. The mounting base of the traveling wheel is provided with a traveling wheel adjustment bolt. The installation height of the traveling wheel can be adjusted by rotating the traveling wheel adjustment bolt.

9. The adaptive sanitation vehicle obstacle avoidance and suction device according to claim 1, characterized in that, The front rubber plate is flexibly connected to the lower front side of the suction cavity by bolts.

10. An adaptive sanitation vehicle obstacle avoidance and suction device according to any one of claims 1-9, characterized in that, The ground clearance of each of the side panels is 8-10 mm.

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