Weight-optimized distribution of a sweeping vehicle

Abstract

The utility model discloses a kind of sweeping vehicles of weight optimization distribution, it is related to sweeping vehicle technical field, wherein, sweeping vehicle includes frame, battery module, water tank, air bellow, fan, front wheel and rear wheel, and the placement plane is formed on the frame;The battery module is installed in the middle part of the placement plane;The water tank is installed in the front end of the placement plane;Air bellow and fan are installed in the rear end of the placement plane;Front wheel and rear wheel are connected to the frame, and the number of the front wheel is one, and the front wheel is located in the middle position of the front end of the frame;The number of the rear wheel is two, and the weight supported by the front wheel is 20%~30% of the whole vehicle weight;The weight supported by the rear wheel is 70%~80% of the whole vehicle weight.The technical scheme provided by the utility model can improve operation smoothness, and avoid appearing rollover.

Description

Technical Field

[0001] This utility model relates to the field of sweeper technology, and in particular to a sweeper with optimized weight distribution. Background Technology

[0002] Against the backdrop of continuous urbanization and increasingly stringent environmental protection requirements, sweeper trucks, as highly efficient cleaning equipment, are widely used in diverse scenarios such as municipal roads, residential alleys, workshops, and shopping mall corridors. The market's core demands for sweeper trucks have gradually expanded from basic cleaning functions to multi-dimensional performance indicators such as maneuverability in narrow spaces, stability on complex road surfaces, and continuous operating capacity.

[0003] The current mainstream sweeper truck structural design typically includes core components such as the frame, battery module, water tank, air box, fan, and front and rear wheels. However, there are still defects in the component layout and weight distribution design. The component installation layout lacks systematic planning. Some models disperse heavy components such as the battery module and air box, or install components such as the water tank and battery module too far forward, resulting in an unbalanced weight distribution of the entire vehicle. The front wheels bear too much weight, while the rear wheels bear too little weight. This unreasonable weight distribution not only increases steering resistance, resulting in insufficient steering flexibility in narrow spaces and making it difficult to adapt to narrow scenarios such as residential alleys and workshop passages, but also makes the vehicle's center of gravity unevenly distributed. During driving, especially when turning, on bumpy roads, or when fully loaded, the risk of tilting and swaying increases, affecting operational safety. Utility Model Content

[0004] The main purpose of this invention is to propose a sweeper with optimized weight distribution, which aims to change the load-bearing ratio of the front and rear wheels to improve the stability of the entire vehicle.

[0005] To achieve the above objectives, the sweeper proposed in this utility model includes a frame, a battery module, a water tank, a blower, a fan, a front wheel, and a rear wheel. A placement plane is formed on the frame; the battery module is installed in the middle of the placement plane; the water tank is installed at the front end of the placement plane; the blower and fan are installed at the rear end of the placement plane; the front wheel and rear wheel are connected to the frame, with one front wheel located at the middle of the front end of the frame; and two rear wheels. The front wheel supports 20%–30% of the total vehicle weight, and the rear wheel supports 70%–80% of the total vehicle weight.

[0006] In one embodiment, the front wheel is a drive steering wheel, and the front wheel is connected to a steering assembly, which is connected to the vehicle frame and is used to drive the front wheel to achieve steering action.

[0007] In one embodiment, the weight of the front wheel support is between 100 kg and 150 kg; and / or, the weight of the two rear wheel supports is between 350 kg and 400 kg.

[0008] In one embodiment, the axle of the front wheel is located at 1 / 10 to 1 / 9 of the frame length; the axle of the rear wheel is located at 3 / 10 to 2 / 5 of the frame length.

[0009] In one embodiment, the distance between the axle center of the front wheel and the axle center of the rear wheel is in the range of 800mm to 1000mm.

[0010] In one embodiment, the diameters of both the front wheel and the rear wheel are in the range of 200mm to 300mm.

[0011] In one embodiment, the width of the frame is in the range of 900mm to 1100mm.

[0012] In one embodiment, the battery module is positioned close to the rear wheel.

[0013] In one embodiment, the length of the frame is in the range of 1300mm to 1500mm.

[0014] In one embodiment, the rear wheel is a driven wheel, and the connection between the rear wheel and the frame has a buffer to buffer the vibration between the rear wheel and the frame.

[0015] The technical solution of this utility model controls the load on the front and rear wheels to reduce steering resistance, improve steering flexibility in narrow spaces or crowded environments, and prevent rollover during steering. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A first-view structural schematic diagram of an embodiment of the sweeper provided by this utility model; Figure 2 A second-view structural schematic diagram of an embodiment of the sweeper provided by this utility model; Figure 3 A third-view structural schematic diagram of an embodiment of the sweeper provided by this utility model; Figure 4A fourth-view structural schematic diagram of an embodiment of the sweeper provided by this utility model; Figure 5 This is a fifth-view structural schematic diagram of an embodiment of the sweeper provided by this utility model.

[0018] Explanation of icon numbers: 10. Frame; 11. Placement plane; 20. Battery module; 30. Water tank; 40. Air box; 50. Fan; 60. Front wheel; 70. Rear wheel; 80. Steering assembly.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] 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 scope of protection of the present utility model.

[0021] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this utility model 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, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text 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. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] This utility model proposes a sweeper with optimized weight distribution.

[0024] Please see Figures 1 to 5In one embodiment of this utility model, the sweeper includes a frame 10, a battery module 20, a water tank 30, a blower 40, a fan 50, a front wheel 60, and a rear wheel 70. A placement plane 11 is formed on the frame 10. The battery module 20 is installed in the middle of the placement plane 11; the water tank 30 is installed at the front end and rear end of the placement plane 11. Both the front wheel 60 and the rear wheel 70 are connected to the frame 10. There is one front wheel 60, located in the middle of the front end of the frame 10; there are two rear wheels 70. The front wheel 60 supports 20%–30% of the total vehicle weight; the rear wheel 70 supports 70%–80% of the total vehicle weight.

[0025] Specifically, in this embodiment, all functional components (battery module 20, water tank 30, air box 40, and fan 50) are fixed with the placement plane 11 of the frame 10 as the reference, forming a longitudinal arrangement of front-middle-rear section. The weight of the front water tank 30 is matched with the 20% to 30% support ratio of the front wheel 60, and the concentrated weight of the rear air box 40 and fan 50 ensures the 70% to 80% support ratio of the rear wheel 70. The centrally located battery module 20 in the middle balances the weight difference between the front and rear sections. The individual front wheel 60 corresponds to the weight bearing of the middle front section of the frame 10, and the two rear wheels 70 are symmetrically distributed to evenly bear the weight of the rear and the main weight of the entire vehicle. The wheel layout and component weight distribution form a precise correspondence. 70% to 80% of the weight is borne by the two rear wheels 70, which, together with the centrally balanced battery module 20, greatly reduces the risk of tilting during sweeper operation, making it particularly suitable for complex scenarios such as turning and uneven road surfaces. The front wheel 60 bears only 20% to 30% of the vehicle's weight, and its single front wheel 60 is located in the middle of the front end, reducing steering resistance and improving steering flexibility in narrow spaces or congested environments. It also reduces the likelihood of rollover during steering. The rear wheel 70 features a high-proportion weight support design, stably supporting the weight of the rear air box 40, the blower 50, and the loaded waste, increasing the vehicle's load-bearing capacity and ensuring continuous operational efficiency. The components in this application are arranged in a front-middle-rear orderly manner, coordinating with the wheel set weight support ratio to achieve a balanced distribution of the vehicle's center of gravity and reduce bumps during driving.

[0026] It should be noted that the load-bearing capacity of the front wheel 60 and rear wheel 70 can be theoretically calculated. For example, this requires calculating the total weight (in kg) of the frame 10, battery module 20, water tank 30, air box 40, fan 50, front wheel 60, rear wheel 70, and other auxiliary components (such as the cleaning device); confirming the installation position of each component; and determining the contribution ratio of its weight to the load-bearing capacity of the front and rear wheels 70 (the front-end components mainly contribute to the load on the front wheel 60, the rear-end components mainly contribute to the load on the rear wheel 70, and the load on the middle components is evenly distributed). This allows for the calculation of the load-bearing ratio of the front wheel 60 and rear wheel 70.

[0027] The load-bearing ratio of the front wheel 60 and the rear wheel 70 can also be determined by direct measurement. The front wheel 60 and the rear wheel 70 can be replaced with a weighing device with a pressure sensor to obtain the pressure on the front wheel 60 and the rear wheel 70 in real time and convert it into actual load-bearing data.

[0028] In this embodiment, the water tank 30 is installed at the front end of the placement plane 11 of the vehicle frame 10, and its water outlet is fixedly connected to the nozzle, forming a complete water transmission structure. The nozzle can be configured as a single nozzle or a combination of multiple nozzles, installed at the bottom or front cleaning area of ​​the vehicle body. The cleaning water in the water tank 30 is transported to the nozzle through pipelines, and is atomized or sprayed out by the nozzle to achieve the function of wetting and dust suppression or auxiliary rinsing in the cleaning area. The air box 40 and the blower 50 are assembled at the rear end of the placement plane 11, and the two constitute a negative pressure dust collection system. The blower 50 provides negative pressure power, and the air box 40 serves as an airflow guiding channel. Its suction inlet corresponds to the cleaning area of ​​the sweeper's cleaning device (side brush and main brush), and its discharge outlet is sealed to the garbage storage box. The garbage (dust, debris, and other debris) collected by the cleaning device can be sucked into the garbage storage box through the negative pressure airflow to complete the collection and storage of garbage.

[0029] Furthermore, the front wheel 60 is a drive steering wheel, and the front wheel 60 is connected to a steering assembly 80, which is connected to the frame 10 and is used to drive the front wheel 60 to achieve steering action.

[0030] Specifically, in this embodiment, the front wheel 60 has both driving and steering functions, providing driving power for the sweeper while also undertaking steering operations. The front wheel 60 is connected to a dedicated steering assembly 80, which is an independent functional module containing core components such as steering drive components and transmission connectors. One end of the steering assembly 80 is mechanically connected to the front wheel 60, and the other end is fixedly mounted to the frame 10 (corresponding mounting position on the frame 10), forming a complete transmission link from the frame 10 to the steering assembly 80 to the front wheel 60. The steering assembly 80 receives operating commands (such as automatic control signals) and transmits steering force to the front wheel 60 through its internal transmission structure, driving the front wheel 60 to deflect around its own axis to achieve steering. The driving function of the front wheel 60 and the steering function of the steering assembly 80 are synchronized and coordinated. During steering, the front wheel 60 continuously outputs driving force, ensuring smooth transition between steering and driving actions.

[0031] The steering component 80 directly drives the front wheels 60 for steering, resulting in a short transmission path and rapid response. Combined with the front wheels 60's low load-bearing ratio of 20%–30%, steering resistance is significantly reduced, allowing the sweeper to flexibly turn around and change direction in narrow alleys and congested areas. The drive and steering functions are integrated into the front wheels 60, and the driving force can adaptively adjust according to the steering angle during steering, reducing wheel slippage and deviation, and improving straight-line stability and steering accuracy. The flexible steering performance shortens site adaptation time and reduces ineffective driving paths. Combined with the stable load-bearing capacity of the rear wheels 70, this allows for more comprehensive cleaning coverage and a smoother workflow.

[0032] Furthermore, the weight supported by the front wheel 60 is between 100kg and 150kg; and / or, the weight supported by the two rear wheels 70 is between 350kg and 400kg.

[0033] Specifically, in this embodiment, the supporting weight of a single front wheel 60 is limited to 100kg-150kg, clearly defining the load-bearing boundary of the front wheel 60 as the drive steering wheel, adapting to its dual functions of power output and steering operation. The total supporting weight of the two rear wheels 70 is 350kg-400kg, with the two wheels working together to bear the main weight of the vehicle, forming a weight distribution pattern where the front wheel 60 provides auxiliary support and the rear wheel 70 bears the main load. When the load-bearing capacity of the front and rear wheels 70 is simultaneously met, the 100kg-150kg of the front wheel 60 and the 350kg-400kg of the rear wheel 70 form a weight distribution range of 20%-32.1% (front wheel 60) and 67.9%-80% (rear wheel 70), which is precisely adapted to the layout of the vehicle components—the weight of the front water tank 30 directly acts on the front wheel 60, the rear air box 40, the fan 50 and the garbage load are concentratedly borne by the rear wheel 70, and the remaining weight is evenly distributed by the middle battery module 20, maintaining a stable weight distribution. The front wheel's lightweight load-bearing design (60, 100kg-150kg) matches its drive and steering functions, reducing steering inertial resistance. The rear wheel's total load-bearing capacity (70, 350kg-400kg) is adapted to its passive load-bearing function. The symmetrical distribution of the two wheels ensures even weight distribution and avoids overloading of any single wheel. The frame's 10 front wheel 60 mounting position is reinforced with a 150kg upper limit for support strength, while the rear wheel 70 mounting position and axle structure are designed for a total load-bearing capacity of 400kg. This ensures that the load-bearing capacity and structural strength are linked, preventing damage caused by exceeding the structural limit.

[0034] The front wheel's low load-bearing design (100kg-150kg) significantly reduces steering resistance. Combined with the drive-steering function, this makes the vehicle more agile in narrow alleys and congested areas, reducing the minimum turning radius and improving passability in complex environments. The rear wheel's load-bearing capacity (350kg-400kg) can stably support the weight of the rear equipment and a full load of garbage, preventing tire blowouts and axle deformation due to overload, thus extending the service life of the wheelset and frame. When the front and rear wheels work together to bear weight, the reasonable weight distribution shifts the vehicle's center of gravity rearward. Combined with the wide spacing of the two rear wheels, this reduces the risk of roll during sudden braking and cornering, minimizes vehicle sway when operating on bumpy roads, and improves ride smoothness. With a load-bearing range of 100kg-150kg for the front wheel 60 and 350kg-400kg for the rear wheel 70, it can adapt to dynamic operating conditions such as water level changes in the water tank 30 and fluctuations in garbage loading, ensuring stable load-bearing capacity under empty, half-load, and full-load conditions, and guaranteeing continuous operation.

[0035] Furthermore, the axle of the front wheel 60 is located at 1 / 10 to 1 / 9 of the length of the frame 10; the axle of the rear wheel 70 is located at 3 / 10 to 2 / 5 of the length of the frame 10.

[0036] Specifically, in this embodiment, the projection of the front wheel 60 axle center along the length of the frame 10 is located within the range of 1 / 10 to 1 / 9 of the total length of the frame 10, near the front end of the frame 10, to accommodate the driving and steering function of the front wheel 60. The projection of the rear wheel 70 axle center along the length of the frame 10 is located within the range of 3 / 10 to 2 / 5 of the total length of the frame 10, positioned slightly rear of the middle of the frame 10, forming a specific axial distance with the front wheel 60. The positions of the front and rear wheel 70 axle centers are precisely defined along the length direction based on the longitudinal centerline of the frame 10, ensuring positional consistency during the production of different vehicle models.

[0037] The axial distance between the axle center of the front wheel 60 (1 / 10-1 / 9) and the axle center of the rear wheel 70 (3 / 10-2 / 5) accounts for 11 / 90-11 / 45 (approximately 12.2% to 24.4%) of the total length of the frame 10. This distance matches the load-bearing ratio of the front and rear wheels 70 (100kg-150kg for the front wheel 60 and 350kg-400kg for the rear wheel 70). The axle center distribution strengthens the load-bearing pattern of the front wheel 60 assisting and the rear wheel 70 being the main load-bearing. The design of the axle center of the front wheel 60 being close to the front end corresponds to the installation position of the water tank 30 at the front of the placement plane 11, so that the weight of the water tank 30 is concentrated on the support area of ​​the front wheel 60. The rearward position of the axle center of the rear wheel 70 corresponds to the installation area of ​​the air box 40 and the fan 50 at the rear end of the placement plane 11, ensuring that the rear weight is stably supported by the rear wheel 70, while the battery module 20 in the middle is located in the balanced force-bearing area between the axle centers of the front and rear wheels 70.

[0038] The front wheel 60 axle is located at the front end of the frame (101 / 10-1 / 9), shortening the steering arm. Combined with the low load-bearing design of the front wheel 60, this significantly reduces steering resistance, making the vehicle more agile in narrow spaces for U-turns and changes of direction. The minimum turning radius is further reduced, improving passability in complex working environments. The rear wheel 70 axle is located slightly rear-middle of the frame (103 / 10-2 / 5), ensuring the vehicle's center of gravity coincides with the load-bearing area of ​​the rear wheel 70. Combined with the rear wheel 70's total load-bearing capacity of 350kg-400kg, this effectively distributes the weight pressure of the rear equipment and waste, preventing localized overload and reducing the risk of rollover during driving. The reasonable spacing and position distribution of the front and rear wheel 70 axles ensures even distribution of the frame's load-bearing points, resulting in better cushioning against road bumps during driving and reduced vehicle sway. This significantly improves operational stability, especially when sweeping uneven surfaces. By quantitatively defining the axle center position, a stable load-bearing ratio of 100kg-150kg for the front wheel 60 and 350kg-400kg for the rear wheel 70 is ensured, preventing weight distribution imbalance caused by axle center offset and guaranteeing consistent performance under different operating conditions. The axle center layout, with the front wheel 60 positioned forward and the rear wheel 70 positioned slightly rearward and in the center, provides ample installation space for the battery module 20 in the middle of the frame 10, while also bringing the loading area of ​​the rear waste compartment closer to the load-bearing support point of the rear wheel 70, increasing waste loading capacity without affecting the overall vehicle balance.

[0039] Furthermore, the distance between the axle of the front wheel 60 and the axle of the rear wheel 70 is in the range of 800mm to 1000mm.

[0040] Specifically, in this embodiment, the straight-line distance between the axle centers of the front wheel 60 and the rear wheel 70 along the longitudinal centerline of the frame 10 is limited to 800mm to 1000mm, forming a fixed and reasonable wheelbase range to suit the overall size of the sweeper and the needs of the operating scenario. The axle center distance between the front and rear wheels 70 is 800mm to 1000mm, precisely matching the axle center positions of the front wheel 60 (1 / 10-1 / 9 of the frame 10 length) and the rear wheel 70 (3 / 10-2 / 5 of the frame 10 length). Through the linkage between the spacing and position, the proportion of the frame 10 length to the wheel assembly layout is ensured to be coordinated, avoiding center of gravity shift due to improper spacing. The spacing range provides a stable spatial reference for the installation of the battery module 20 in the middle of the frame 10, the front water tank 30, the rear air box 40, and the fan 50, ensuring that the arrangement of each functional component on the frame 10 is neither crowded, nor that the weight of the components is precisely applied to the load-bearing area of ​​the corresponding wheel assembly through spacing optimization.

[0041] The 800mm-1000mm axle spacing provides a reasonable wheelbase support span. Combined with the high load-bearing design of the rear wheel 70, this significantly enhances the vehicle's anti-roll capability, resulting in a more stable vehicle posture during cornering and emergency braking. This is especially noticeable when fully loaded or traveling on uneven roads, where swaying is significantly reduced. The spacing avoids steering interference caused by excessively short wheel spacing, while also preventing increased steering torque due to excessively long spacing. Combined with the low load-bearing capacity of the front wheel 60 and its forward axle position, steering becomes light and flexible, improving the efficiency of U-turns and lane changes in tight spaces, while ensuring trajectory stability during straight-line driving. The reasonable spacing distributes the load-bearing pressure between the front and rear wheels 70. The front wheel 60 can stably support the weight of the front water tank 30, while the rear wheel 70 can evenly distribute the load of the rear equipment and waste, reducing wear at the wheel axle and frame 10 connections, extending the service life of core components, and lowering maintenance costs. The 800mm to 1000mm spacing is suitable for the road width requirements of most common operating scenarios such as municipal roads, residential alleys, and workshops. It not only ensures vehicle passability but also can cope with the bumps and impacts of different road surfaces through a stable support structure, thus improving the adaptability to complex operating scenarios.

[0042] Furthermore, the width of the frame 10 is in the range of 900mm to 1100mm. The length of the frame 10 is in the range of 1300mm to 1500mm. The diameters of the front wheel 60 and the rear wheel 70 are both in the range of 200mm to 300mm.

[0043] Specifically, in this embodiment, the overall width of the frame 10 is limited to 900mm to 1100mm to meet the passage requirements of narrow working scenarios, while reserving sufficient lateral space for the layout of internal components. The total length of the frame 10 is set in the range of 1300mm to 1500mm, taking into account both the installation length of components required for operational functions and the size requirements for flexible steering. The diameter of both the front wheel 60 and the rear wheel 70 is 200mm to 300mm, and the wheel set size is uniform and fits the overall contour of the frame 10, ensuring stability during driving and support. The narrow body design of 900mm to 1100mm allows the sweeper to easily navigate narrow spaces such as alleys in residential areas, workshop passages, and shopping mall corridors, while the compact length of 1300mm to 1500mm shortens the turning radius. Combined with the flexible steering function, this significantly improves the passability in complex and narrow scenarios. The reasonable aspect ratio of the frame (10) and the wheel diameter (200mm-300mm) work together to lower the overall center of gravity of the vehicle. Combined with the high load-bearing capacity and wide spacing of the rear wheels (70), this effectively reduces the risk of tilting and swaying during turns and bumps, resulting in a more stable vehicle posture during driving and significantly improved operational safety.

[0044] Furthermore, the battery module 20 is positioned close to the rear wheel 70.

[0045] Specifically, in this embodiment, the battery module 20 is positioned close to the rear wheel 70, with its own weight primarily acting on the load-bearing area of ​​the rear wheel 70. This further strengthens the total load-bearing ratio of the rear wheel 70 (350kg-400kg), creating a reasonable rear-heavy, front-light weight distribution with the front wheel 60's load of 100kg-150kg, thus solidifying the rear wheel 70's primary load-bearing configuration. The concentration of weight of the battery module 20 towards the rear wheel 70 further optimizes the vehicle's center of gravity distribution, bringing it closer to the load-bearing fulcrum of the rear wheel 70. Combined with the high load-bearing design of the rear wheel 70, this significantly reduces the risk of rollover when the vehicle is fully loaded, turning, or driving on bumpy roads, resulting in greater vehicle stability. The close proximity of the battery module 20 to the rear wheel 70 allows for more flexible space allocation in the middle and front of the frame 10. This does not affect the installation and function of the water tank 30 and steering assembly 80, while also creating a compact rear functional area with the rear air box 40 and fan 50, improving overall vehicle space utilization and resulting in a more compact structure.

[0046] Furthermore, the rear wheel 70 is a driven wheel, and the connection between the rear wheel 70 and the frame 10 has a buffer to buffer the vibration between the rear wheel 70 and the frame 10.

[0047] Specifically, in this embodiment, the rear wheel 70 is functionally positioned as a driven wheel, only undertaking load-bearing and auxiliary walking functions, and does not participate in power output, thus fulfilling its core responsibility of main load-bearing. A buffer component is installed at the connection between the rear wheel 70 and the frame 10. This buffer component is an independent structural component, directly clamped between the rear wheel 70 mounting base and the frame 10, specifically designed to absorb vibration and mitigate impact. The buffer component effectively absorbs road bumps and impact vibrations during sweeping operations, reducing vibration transmission between the rear wheel 70 and the frame 10, preventing severe shaking of the vehicle body due to vibration, and improving the smoothness of operation. The buffer component mitigates the impact from uneven road surfaces, and combined with the high load-bearing capacity and reasonable axle layout of the rear wheel 70, further reduces the risk of vehicle tilting and deviation, especially when fully loaded or traveling on complex road surfaces, resulting in more stable vehicle posture and significantly improved operational safety.

[0048] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A sweeper with optimized weight distribution, characterized in that, include: A vehicle frame, on which a mounting surface is formed; A battery module, wherein the battery module is installed in the middle of the placement plane; A water tank, which is installed at the front end of the placement plane; The bellows and fan are installed at the rear end of the placement plane; The vehicle has a front wheel and a rear wheel connected to the frame. There is one front wheel, which is located in the middle of the front end of the frame. There are two rear wheels. The front wheel supports 20% to 30% of the total vehicle weight, and the rear wheel supports 70% to 80% of the total vehicle weight.

2. The sweeper with optimized weight distribution as described in claim 1, characterized in that, The front wheel is a drive steering wheel, and the front wheel is connected to a steering assembly. The steering assembly is connected to the vehicle frame and is used to drive the front wheel to achieve steering action.

3. The sweeper with optimized weight distribution as described in claim 1, characterized in that, The weight of the front wheel support is between 100 kg and 150 kg; and / or, the weight of the two rear wheel supports is between 350 kg and 400 kg.

4. The sweeper with optimized weight distribution as described in claim 1, characterized in that, The axle of the front wheel is located at 1 / 10 to 1 / 9 of the length of the frame; the axle of the rear wheel is located at 3 / 10 to 2 / 5 of the length of the frame.

5. The sweeper with optimized weight distribution as described in claim 1, characterized in that, The distance between the axle of the front wheel and the axle of the rear wheel is in the range of 800mm to 1000mm.

6. The sweeper with optimized weight distribution as described in claim 1, characterized in that, The diameters of both the front and rear wheels are in the range of 200mm to 300mm.

7. The sweeper with optimized weight distribution as described in claim 1, characterized in that, The width of the frame is in the range of 900mm to 1100mm.

8. The sweeper with optimized weight distribution as described in claim 1, characterized in that, The battery module is positioned near the rear wheel.

9. The sweeper with optimized weight distribution as described in claim 7, characterized in that, The length of the frame is in the range of 1300mm to 1500mm.

10. The sweeper with optimized weight distribution as described in claim 1, characterized in that, The rear wheel is a driven wheel, and the connection between the rear wheel and the frame has a buffer to buffer the vibration between the rear wheel and the frame.

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