Self-loading and self-unloading device of electric three-wheel sanitation vehicle

Abstract

The utility model discloses a kind of electric three-wheel sanitation vehicle self-loading and unloading device, including frame bottom support, the cargo box is movably installed on the upper end of frame bottom support, cargo box is tilted and overturned to tail end by driving assembly and realizes unloading, the top of cargo box is open structure, the front end and rear end of the top of cargo box are respectively fixed with linear slide rail, the inside of cargo box is matched with the pressing plate that is straddled in the front and rear end of box cavity, the upper end of pressing plate is slidably arranged on linear slide rail, electric push rod one is arranged and is abutted on the side of cargo box, by starting rotation drive base and driving electric push rod one horizontal rotation, electric push rod output piston rod and form magnetic attraction with pressing plate at this time, continue to output and drive pressing plate to move to the other side of box warehouse under the cooperation of linear slide rail and slide base etc., and compression simple and easy processing is carried out to the garbage in box, to this expansion cargo box internal remaining loading space, return after completion, save a lot of back and forth time and energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of three-wheeled sanitation vehicle technology, specifically to a self-loading and self-unloading device for an electric three-wheeled sanitation vehicle. Background Technology

[0002] Currently, small electric tricycles are the mainstream equipment for street sanitation. They are small three-wheeled transport vehicles powered by electricity and specifically designed for urban sanitation operations. These small electric tricycles are a type of electric tricycle, but they have been modified and optimized for specific tasks such as cleaning and garbage collection. These vehicles are typically equipped with an open or semi-open cargo box (some may have a flip-up rainproof lid), allowing sanitation workers to easily dispose of garbage into the cargo box while cleaning the streets or during the journey.

[0003] However, in certain special road sections and environments, we found that the small cargo box volume of these small electric tricycles is insufficient when dealing with large amounts of garbage. This necessitates sanitation workers driving the vehicles to designated areas for dumping and returning, wasting significant time and energy. Furthermore, garbage needs to be compressed during intermediate processing before final transfer. Therefore, we envisioned improving existing small electric tricycles to allow for simple compression and loading of garbage in the cargo box, which would significantly facilitate sanitation work and further improve efficiency. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] Therefore, the purpose of this utility model is to provide a self-loading and self-unloading device for electric tricycle sanitation vehicles, so as to solve the problem mentioned in the background art that the cargo box volume of existing small electric tricycle sanitation vehicles is small, which easily leads to insufficient loading capacity when the amount of garbage is large. At this time, sanitation workers need to drive the vehicle to a designated area for dumping and return, which wastes a lot of time and energy.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electric three-wheeled sanitation vehicle self-loading and self-unloading device, which includes a chassis base, a cargo box movably mounted on the upper end of the chassis base, and a drive assembly driving the cargo box to tilt and flip towards the rear end to achieve unloading. The top of the cargo box is an open structure, and linear slide rails are fixed across the front and rear ends of the top of the cargo box. A pressure plate is matched on the inner side of the cargo box, spanning the front and rear ends of the inner cavity of the box. The upper end of the pressure plate is slidably mounted on the linear slide rail. An electric push rod and a rotary drive seat for driving the electric push rod to rotate horizontally are abutted on one side of the cargo box.

[0007] When the electric push rod is rotated to a right angle with the cargo box, the piston rod end of the electric push rod extends out and magnetically engages with the pressure plate through the side wall of the cargo box.

[0008] As a preferred embodiment of the self-loading and unloading device for an electric tricycle sanitation vehicle described in this utility model, the rear end of the cargo box has a discharge port, and the upper part of the discharge port is longitudinally rotatably hinged with a discharge gate.

[0009] As a preferred embodiment of the self-loading and unloading device for an electric tricycle sanitation vehicle described in this utility model, the inner side of the linear slide rail is slidably matched with a slide seat, the top of the pressure plate is fixed with a crossbeam, and both ends of the crossbeam have fixing blocks respectively fixed to the upper end of the corresponding slide seat.

[0010] As a preferred embodiment of the self-loading and unloading device for an electric tricycle sanitation vehicle described in this utility model, the rotary drive base includes a fixed ear plate fixed to the side wall of the cargo box, a rotating shaft fixed to the upper and lower ends of the outer side of the cylinder of the electric push rod and rotatably connected to the fixed ear plate, and a motor disposed on the upper end of the fixed ear plate for driving the rotating shaft to rotate axially.

[0011] As a preferred embodiment of the self-loading and unloading device for an electric tricycle sanitation vehicle described in this utility model, an avoidance hole is provided at the center of one side of the cargo box, and the avoidance hole is located at the output end of the electric push rod.

[0012] As a preferred embodiment of the self-loading and unloading device for an electric tricycle sanitation vehicle described in this utility model, a first magnetic block is fixed to the outer end of the piston rod of the electric push rod, and a second magnetic block that is magnetically attracted to the first magnetic block is fixed at the center of the upper part of the pressure plate.

[0013] As a preferred embodiment of the self-loading and unloading device for an electric tricycle sanitation vehicle described in this utility model, the rear end of the top of the chassis support has a hinge seat 1 that is longitudinally rotatably connected to the rear end of the cargo box on both sides. The chassis support has a hinge seat 2 fixed on one or both sides. An electric push rod 2 is rotatably connected to one side of the hinge seat 2. The piston rod end of the electric push rod 2 has a shaft disc that is rotatably connected to the side wall of the cargo box.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: When the self-loading and unloading device of this electric tricycle sanitation vehicle is in use, if there is too much garbage inside the cargo box or it is insufficient to handle the subsequent loading, the rotary drive seat is activated, driving the electric push rod to rotate horizontally. At this time, the electric push rod outputs a piston rod that forms a magnetic attraction with the pressure plate. It continues to output, and with the cooperation of the linear slide rail and slide block, it drives the pressure plate to move to the other side of the cargo box, compressing and simplifying the garbage inside. This expands the remaining loading space inside the cargo box, allowing for multiple compressions during use. After completion, it drives the pressure plate back, and finally the piston rod retracts and disengages from the magnetic attraction with the pressure plate, rotating and retracting to one side of the cargo box. This saves a significant amount of time and energy spent on back-and-forth trips, bringing convenience to sanitation work and further improving sanitation efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the detailed structure of the rotary drive base of this utility model;

[0017] Figure 3 This utility model Figure 1 A magnified view of the structure at point A in the middle;

[0018] Figure 4 This utility model Figure 1 A schematic diagram showing the detailed structure of a part of the structure.

[0019] In the diagram: 100, chassis base; 200, cargo box; 210, unloading port; 220, unloading gate; 230, clearance hole; 300, linear slide rail; 310, slide block; 400, pressure plate; 410, crossbeam; 420, fixing block; 500, electric actuator one; 510, first magnetic block; 520, second magnetic block; 600, rotary drive seat; 610, fixing ear plate; 620, rotating shaft; 630, motor; 700, hinge seat one; 800, hinge seat two; 810, electric actuator two; 820, shaft plate. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0023] Figures 1-4 The diagram shown is a complete structural schematic of a self-loading and unloading device for an electric tricycle sanitation vehicle according to this utility model. Please refer to [link / reference]. Figures 1-4 This embodiment of an electric tricycle sanitation vehicle self-loading and self-unloading device includes a chassis base 100, on which a cargo box 200 is movably mounted. The cargo box 200 is tilted and flipped to the rear end by a drive assembly to unload materials. The top of the cargo box 200 is an open structure. Linear slide rails 300 are fixed across the front and rear ends of the top of the cargo box 200. A pressure plate 400 spans the front and rear ends of the inner cavity of the cargo box 200 and is matched inside the cargo box 200. The upper end of the pressure plate 400 is slidably mounted on the linear slide rails 300. An electric push rod 500 and a rotary drive seat 600 for driving the electric push rod 500 to rotate horizontally are abutted on one side of the cargo box 200. When the electric push rod 500 rotates to a right angle with the cargo box 200, the piston rod end of the electric push rod 500 extends out and forms a magnetic attraction with the pressure plate 400 through the side wall of the cargo box 200.

[0024] See Figure 1 The cargo box 200 has a discharge port 210 at its rear end, and a discharge door 220 is longitudinally hinged to the upper part of the discharge port 210. It should be noted that the discharge port 210 is preferably designed to open and close vertically. The discharge door 220 can be opened and closed manually with a latch, or electrically, such as by a telescopic rod or motor. If it is electrically operated, the discharge door 220 will open automatically when the cargo box 200 is tilted for unloading. The specific method can be set according to actual needs.

[0025] In this embodiment, a slide block 310 is slidably matched on the inner side of the linear slide rail 300, and a crossbeam 410 is fixed on the top of the pressure plate 400. The two ends of the crossbeam 410 have fixing blocks 420 respectively fixed to the upper ends of the corresponding slide blocks 310. With the cooperation of the linear slide rail 300, the slide block 310 and the crossbeam 410, the pressure plate 400 moves more smoothly and steadily along the width direction of the cargo box 200. Since compressing garbage does not require too much force, and the purpose is only to compress and reduce the size of the garbage, the pressure plate 400 can be made of metal plate, acrylic plate, engineering plastic, etc., and is not limited thereto. The rotary drive base 600 includes a fixed ear plate 610 fixed to the side wall of the cargo box 200, a rotating shaft 620 fixed to the upper and lower ends of the outer side of the cylinder of the electric push rod 500 and rotatably connected to the fixed ear plate 610, and a motor 630 set on the upper end of the fixed ear plate 610 for driving the rotating shaft 620 to rotate axially. It is understandable that during routine sanitation cleaning, the electric actuator 500 and the cargo box 200 are kept in a flat position to avoid occupying lateral space. They are only unfolded when pressing is required. Since the cylinder length of the electric actuator 500 is relatively short, its stroke length is less than or equal to the inner width of the cargo box 200. Therefore, there is no need to worry about it occupying space. Alternatively, using a multi-stage electric actuator can further reduce the length of a regular two-stage electric actuator. Specifically, in actual use, when there is too much garbage inside the cargo container 200 or it is insufficient to handle the subsequent garbage loading, the rotary drive seat 600 is then activated, driving the electric push rod 500 to rotate horizontally. At this time, the electric push rod outputs a piston rod that forms a magnetic attraction with the pressure plate 400. It continues to output and, with the cooperation of the linear slide rail 300 and the slide block 310, drives the pressure plate 400 to move to the other side of the container, compressing and simplifying the garbage inside the container. This expands the remaining loading space inside the cargo container, allowing for multiple compressions during use. After completion, the pressure plate 400 is driven back, and finally the piston rod retracts and disengages from the magnetic attraction with the pressure plate 400, rotating and retracting to one side of the cargo container 200. This saves a lot of time and energy spent on back-and-forth trips, bringing convenience to sanitation and cleaning work.

[0026] It should be noted that in normal use and in the unpressed state, the pressure plate 400 is close to the side of the cargo box 200 and near the electric push rod 500. Since the pressure plate 400 and the slide 310 have a certain weight and a certain sliding resistance, there is no need to worry about the pressure plate 400 sliding freely.

[0027] Preferred, see 1 and Figure 2 A clearance hole 230 is provided in the center of one side of the cargo box 200, and the clearance hole 230 is located at the output end of the electric actuator 500. The clearance hole 230 allows the piston rod of the electric actuator 500 to move freely in and out.

[0028] Preferred, see Figure 2The piston rod of the electric actuator 500 is fixed with a first magnetic block 510 at its outer end, and a second magnetic block 520, which is magnetically attracted to the first magnetic block 510, is fixed at the center of the upper part of the pressure plate 400. Through the cooperation of the first magnetic block 510 and the second magnetic block 520, the electric actuator 500 can flexibly connect and disconnect from the pressure plate 400. The structure is simple and low-cost. Of course, other connection methods can be used in other embodiments, and this is not limited.

[0029] See Figure 1 and Figure 4 The chassis base 100 has hinge seats 700 on both sides of its top rear end, which are longitudinally rotatably connected to the rear end of the cargo box 200. A second hinge seat 800 is fixed to one or both sides of the chassis base 100. An electric push rod 810 is rotatably connected to one side of the second hinge seat 800. The piston rod end of the electric push rod 810 has a shaft disc 820 rotatably connected to the side wall of the cargo box 200. The above structure is designed to tilt and overturn the cargo box 200. In practical applications, a telescopic rod structure for pushing the cargo box 200 to rotate can also be provided at the central axis of the chassis base 100. Of course, other forms of tilting drive can also be used. This embodiment only shows one drive form; the specific form can be set according to actual needs.

[0030] Furthermore, the operating units in this embodiment, such as electric actuator 500, electric actuator 810, and motor 630, are electrically connected to the battery and control unit of the tricycle via wires. This is conventional technology and will not be described in detail here.

[0031] In summary, the self-loading and unloading device for an electric tricycle sanitation vehicle according to this embodiment allows the tricycle to move to an appropriate area when there is too much or insufficient garbage inside the cargo box 200 to handle subsequent loading. The rotating drive seat 600 is then activated, causing the electric push rod 500 to rotate horizontally. At this time, the electric push rod outputs a piston rod that magnetically attracts the pressure plate 400. The output continues, and with the cooperation of the linear slide rail 300 and the slide block 310, the pressure plate 400 moves to the other side of the cargo box, compressing and simplifying the garbage inside. This expands the remaining loading space inside the cargo box, allowing for multiple loading operations. After completion, the pressure plate 400 returns, and finally, the piston rod retracts and disengages from the magnetic attraction with the pressure plate 400, rotating and retracting to one side of the cargo box 200. This eliminates a significant amount of back-and-forth time and energy consumption, bringing convenience to sanitation work and further improving sanitation efficiency.

[0032] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A self-loading and self-unloading device for an electric tricycle sanitation vehicle, characterized in that, Includes a chassis base (100), on which a cargo box (200) is movably mounted. The cargo box (200) is tilted and flipped to the rear end by a drive assembly to unload the cargo. The top of the cargo box (200) is an open structure. Linear slide rails (300) are fixed across the front and rear ends of the top of the cargo box (200). A pressure plate (400) spans across the front and rear ends of the inner cavity of the cargo box (200). The upper end of the pressure plate (400) is slidably mounted on the linear slide rail (300). An electric push rod (500) and a rotary drive seat (600) for driving the electric push rod (500) to rotate horizontally are abutted on one side of the cargo box (200). When the electric push rod (500) rotates to a right angle with the cargo box (200), the piston rod end of the electric push rod (500) extends out and forms a magnetic attraction with the pressure plate (400) through the side wall of the cargo box (200).

2. The self-loading and self-unloading device for an electric tricycle sanitation vehicle according to claim 1, characterized in that: The cargo box (200) has a discharge port (210) at the rear end, and a discharge gate (220) is longitudinally hinged to the upper part of the discharge port (210).

3. The self-loading and self-unloading device for an electric tricycle sanitation vehicle according to claim 1, characterized in that: The linear slide rail (300) is slidably matched with a slide block (310) on its inner side, and a crossbeam (410) is fixed on the top of the pressure plate (400). The crossbeam (410) has fixing blocks (420) at both ends that are respectively fixed to the upper end of the corresponding slide block (310).

4. The self-loading and self-unloading device for an electric tricycle sanitation vehicle according to claim 1, characterized in that: The rotary drive base (600) includes a fixed ear plate (610) fixed to the side wall of the cargo box (200), a rotating shaft (620) fixed to the upper and lower ends of the outer side of the cylinder of the electric push rod (500) and rotatably connected to the fixed ear plate (610), and a motor (630) disposed on the upper end of the fixed ear plate (610) for driving the rotating shaft (620) to rotate axially.

5. The self-loading and self-unloading device for an electric tricycle sanitation vehicle according to claim 1, characterized in that: An obstacle clearance hole (230) is provided at the center of one side of the cargo box (200), and the obstacle clearance hole (230) is located at the output end of the electric actuator (500).

6. The self-loading and self-unloading device for an electric tricycle sanitation vehicle according to claim 1, characterized in that: The piston rod of the electric actuator (500) is fixed with a first magnetic block (510) at the outer end, and a second magnetic block (520) that is magnetically attracted to the first magnetic block (510) is fixed at the center of the upper part of the pressure plate (400).

7. The self-loading and self-unloading device for an electric tricycle sanitation vehicle according to claim 1, characterized in that: The top rear end of the chassis base (100) has a hinge seat 1 (700) on both sides that is longitudinally rotatably connected to the rear end of the cargo box (200). The chassis base (100) has a hinge seat 2 (800) fixed on one or both sides. The hinge seat 2 (800) is rotatably connected to an electric push rod 2 (810) on one side. The piston rod end of the electric push rod 2 (810) has a shaft disc (820) that is rotatably connected to the side wall of the cargo box (200).

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