Low center of gravity sweeper

Abstract

The utility model discloses a low gravity formula sweeper, relate to the technical field of sweeper, wherein, the sweeper includes the frame, water tank module, garbage storage room, battery module and wheel assembly, the frame has the installation plane of horizontal arrangement, water tank module installs the top of installation plane to be located the front end of frame, and garbage storage room installs the rear end of frame to be located the below of installation plane, battery module installs the middle part of frame to be located the top of installation plane, wheel assembly includes front wheel and two rear wheels, and front wheel is located the below of water tank module, and rear wheel is close to garbage storage room setting. The utility model provides technical scheme to reduce the gravity height of whole car, and promote the stability of driving and operation.

Description

Technical Field

[0001] This utility model relates to the field of sweeper technology, and in particular to a low center of gravity sweeper. Background Technology

[0002] As a highly efficient cleaning device, sweeper trucks are widely used in commercial complexes, industrial parks, airport bridges, and other scenarios. The rationality of their overall layout directly affects their operating efficiency, stability, and ease of maintenance. Currently, sweeper trucks on the market have many shortcomings in the arrangement of core components: most products use a dispersed arrangement of the water tank, battery, and garbage storage compartment on the same plane, or a concentrated stack above the installation plane, resulting in a high center of gravity for the entire vehicle. This makes them prone to tipping over when driving, turning, or operating on complex road surfaces, leading to poor stability. Utility Model Content

[0003] The main purpose of this utility model is to propose a low center of gravity sweeper, which aims to adjust the layout of the sweeper to lower the overall center of gravity and improve the stability of driving and operation.

[0004] To achieve the above objectives, the present invention proposes a low-center-of-gravity sweeper, comprising a frame, a water tank module, a garbage storage chamber, a battery module, and a wheel assembly. The frame has a horizontally arranged mounting plane; the water tank module is mounted above the mounting plane and located at the front end of the frame; the garbage storage chamber is mounted at the rear end of the frame and located below the mounting plane; the battery module is mounted in the middle of the frame and located above the mounting plane; the wheel assembly includes a front wheel and two rear wheels, the front wheel being located below the water tank module, and the rear wheels being positioned close to the garbage storage chamber.

[0005] In one embodiment, the sweeper further includes a fan and a blower box disposed directly above the garbage storage chamber. The fan and blower box are located on the mounting plane. The frame has a ventilation opening communicating with the blower box and the garbage storage chamber. The blower box contains a removable filter element.

[0006] In one embodiment, the sweeper further includes a main brush assembly and a side brush assembly rotatably connected to the frame. The two side brush assemblies are respectively disposed on both sides of the front wheel, and the main brush assembly is located behind the side brush assemblies and in front of the garbage storage chamber.

[0007] In one embodiment, the rear end of the vehicle frame has a mounting bracket that forms a receiving cavity for accommodating the waste storage chamber; the waste storage chamber is removable and insertable into the receiving cavity.

[0008] In one embodiment, the mounting frame includes baffles on both sides and a base plate connected to the two baffles. The base plate is used to block the front end of the garbage storage chamber. The rear end of the garbage storage chamber has a locking assembly. The frame has a suspension member at a position corresponding to the locking assembly. The locking assembly is fastened to the suspension member.

[0009] In one embodiment, the waste storage chamber includes a housing, wheels, and a push rod; the housing has a first opening facing upwards and a second opening facing the main brush assembly, the first opening being used to collect waste transported by the main brush assembly, and the second opening corresponding to a vent.

[0010] In one embodiment, the bottom wall of the box has a concave structure, including a first wall, a second wall and a third wall connected in sequence at an obtuse angle. The first wall is located on the side away from the second opening. The intersection of the first wall and the second wall is located at the lowest position of the box. The intersection of the third wall and the second wall is higher than the intersection of the first wall and the second wall.

[0011] In one embodiment, the main brush assembly is in communication with the first opening.

[0012] In one embodiment, the sweeper also includes a nozzle, which is connected to the water tank via a water pipe. A water pump is connected in series on the water pipe, and the water pump is fixedly installed on the vehicle frame and located between the water tank and the side brush. The nozzle is an atomizing nozzle.

[0013] In one embodiment, a shock-absorbing rubber component is installed between the rear wheel and the vehicle frame.

[0014] The technical solution of this utility model adopts a layered layout with the battery module on top (above the mounting plane) and the garbage storage chamber on the bottom (below the mounting plane). Combined with the longitudinal balance design of the battery module in the middle, it reduces the height of the vehicle's center of gravity (the lower garbage storage chamber reduces the concentration of the upper load) and makes the weight evenly distributed along the longitudinal direction of the frame. This effectively avoids the problems of top-heavy or side-biasedness caused by the concentrated arrangement of components in traditional sweepers, and improves the stability during driving and operation. Attached Figure Description

[0015] 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.

[0016] Figure 1A schematic diagram of the structure of an embodiment of the sweeper provided by this utility model from one perspective; Figure 2 A schematic diagram of the structure of an embodiment of the sweeper provided by this utility model from another perspective; Figure 3 A schematic diagram of the structure of a sweeper with a garbage storage chamber provided by this utility model; Figure 4 A schematic diagram of the structure of a garbage storage room according to an embodiment of this utility model is provided from one perspective. Figure 5 This invention provides a structural schematic diagram of a garbage storage chamber from another perspective, representing an embodiment of the present invention. Figure 6 This is a schematic diagram of the internal structure of an embodiment of the sweeper provided by this utility model.

[0017] Explanation of icon numbers: 10. Frame; 11. Ventilation opening; 12. Mounting bracket; 121. Baffle; 122. Base plate; 13. Suspension components; 20. Water tank module; 30. Waste storage compartment; 31. Locking assembly; 32. Box body; 321. First opening; 322. Second opening; 33. Bottom wheel; 34. Push rod; 35. Bottom wall; 351. First wall; 352. Second wall; 353. Third wall; 40. Battery module; 50. Wheel assembly; 51. Front wheel; 52. Rear wheel; 60. Fan; 61. Air box; 70. Main brush assembly; 80. Side brush assembly.

[0018] 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

[0019] 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.

[0020] 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.

[0021] 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.

[0022] This utility model proposes a low center of gravity sweeper.

[0023] Please see Figures 1 to 6 In one embodiment of this utility model, the sweeper includes a frame 10, a water tank module 20, a garbage storage chamber 30, a battery module 40, and a wheel assembly 50. The frame 10 has a horizontally arranged mounting plane. The water tank module 20 is mounted above the mounting plane and located at the front end of the frame 10. The garbage storage chamber 30 is mounted at the rear end of the frame 10 and located below the mounting plane. The battery module 40 is mounted in the middle of the frame 10 and located above the mounting plane. The wheel assembly 50 includes a front wheel 51 and two rear wheels 52. The front wheel 51 is located below the water tank module 20, and the rear wheels 52 are located close to the garbage storage chamber 30.

[0024] Specifically, in this embodiment, the sweeper includes a frame 10, a water tank module 20, a garbage storage chamber 30, a battery module 40, and a wheel assembly 50. All components are organically integrated through the frame 10, jointly achieving the sweeping function. The frame 10 has a horizontally positioned mounting plane, which provides an upper mounting reference for the water tank module 20 and the battery module 40, serving as the core load-bearing structure for the spatial layout of each component. The water tank module 20 is installed above the mounting plane and at the front end of the frame 10. It is rigidly connected to the frame 10 via a pre-set fixing structure (such as bolts or clips), and its position is close to the sweeping area (in front of the front wheel 51) to facilitate water supply to the front sweeping components. The garbage storage chamber 30 is installed at the rear end of the frame 10 and below the mounting plane, positioned below the rear of the vehicle, forming a longitudinal distribution with the front water tank module 20 and the middle battery module 40. The battery module 40 is installed in the middle of the frame 10 and above the mounting plane, located in the longitudinal center area between the water tank module 20 and the garbage storage chamber 30, which is a key balance point for the weight distribution of the entire vehicle. The front wheel 51 is located below the water tank module 20 and directly bears the front load; the two rear wheels 52 are set close to the garbage storage chamber 30 and bear the rear load. The front wheel 51 and the rear wheel 52 are distributed longitudinally along the frame 10, forming a stable four-point support structure. The position of the front wheel 51 corresponds to the water tank module 20 and the position of the rear wheel 52 corresponds to the garbage storage chamber 30, realizing the matching of load and support.

[0025] The sweeper of this application adopts a layered layout with the water tank module 20 and battery module 40 positioned on top (above the mounting plane), and the garbage storage chamber 30 positioned below (below the mounting plane). Combined with the longitudinal balance design of the battery module 40 located in the middle, this lowers the overall center of gravity of the vehicle (the lower-positioned garbage storage chamber 30 reduces the concentration of upper load), while also distributing the weight evenly along the longitudinal direction of the frame 10. This effectively avoids the top-heavy or lateral tilting problems caused by the concentrated arrangement of components in traditional sweepers, thus improving stability during driving and operation. The layout, which combines front-middle-rear longitudinal partitioning with upper-lower layering, allows the water tank, battery, and garbage storage chamber 30 to achieve functional partitioning within the limited space of the frame 10, avoiding interference between components (such as separating the battery and garbage storage chamber 30 vertically to reduce the impact of humid environments on the battery), and significantly improving the compactness of the overall vehicle structure. The front wheel 51 bears the front load of the water tank module 20, and the rear wheel 52 bears the rear load of the garbage storage chamber 30, forming a force structure corresponding to the load point and the support point, reducing the deformation of the frame 10 caused by load offset and extending the service life of the whole vehicle.

[0026] Furthermore, the sweeper also includes a blower 60 and a blower box 61 located directly above the garbage storage chamber 30. The blower 60 and the blower box 61 are located on the mounting plane. The frame 10 has a vent 11 that communicates with the blower box 61 and the garbage storage chamber 30. The blower box 61 has a removable filter element inside.

[0027] Specifically, in this embodiment, a fan 60 and an air box 61 are also installed on the mounting plane, both located directly above the garbage storage chamber 30. A ventilation opening 11 is provided on the frame 10, which connects to both the air box 61 and the garbage storage chamber 30, forming an airflow channel. The fan 60 and air box 61 are located directly above the garbage storage chamber 30 and on the mounting plane, forming an upper-lower corresponding layout with the lower garbage storage chamber 30. The ventilation opening 11 on the frame 10 enables spatial communication between the two, creating a longitudinal airflow path of air box 61 - ventilation opening 11 - garbage storage chamber 30. The fan 60 provides negative pressure, and the airflow passes through the garbage storage chamber 30 (collecting garbage) → ventilation opening 11 → air box 61 (filtered by a filter element) → fan 60 and is discharged, forming a complete dust collection-filtration airflow cycle.

[0028] In this embodiment, the blower 60 and the air box 61 are located directly above the garbage storage chamber 30 and are directly connected through a short-path ventilation opening 11, reducing airflow resistance loss during transmission, enhancing the negative pressure suction within the garbage storage chamber 30, and improving garbage collection efficiency. The blower 60, air box 61, and garbage storage chamber 30 are arranged vertically correspondingly, utilizing the unused space above the mounting plane to integrate the dust collection system, avoiding lateral interference with the upper-mounted battery module 40 and water tank module 20, further improving the overall vehicle space utilization and maintaining structural compactness. The removable filter element is directly assembled inside the air box 61, forming a detachable filter engagement with the air box 61. The removable filter element facilitates quick disassembly, cleaning, or replacement, solving the problem of cumbersome maintenance of traditional fixed filter elements; at the same time, since the air box 61 is located on the mounting plane, the filter element insertion and removal operation does not require bending over or disassembling lower components, reducing maintenance difficulty. The filter element filters the intake airflow inside the air box 61, which can intercept dust, fine particles and other contaminants to prevent them from entering the fan 60 and causing damage. At the same time, it reduces exhaust dust and improves the cleanliness of the working environment.

[0029] Furthermore, the sweeper also includes a main brush assembly 70 and a side brush assembly 80 rotatably connected to the frame 10. The two side brush assemblies 80 are respectively located on both sides of the front wheel 51, and the main brush assembly 70 is located behind the side brush assembly 80 and in front of the garbage storage chamber 30.

[0030] Specifically, in this embodiment, two side brush assemblies 80 are respectively disposed on both sides of the front wheel 51 and rotatably connected to the frame 10 (possessing rotational sweeping capability, with their rotation axis set vertically). The main brush assembly 70 is located behind the side brush assemblies 80 and in front of the garbage storage chamber 30, and is rotatably connected to the frame 10. The rotation axis of the main brush assembly 70 is set along the width of the frame 10. The side brush assemblies 80 (on both sides of the front wheel 51) and the main brush assembly 70 (behind the side brushes and in front of the garbage storage chamber 30) are arranged longitudinally along the frame 10, forming a progressive sweeping-collection layout with the side brushes in front, the main brush in the middle, and the garbage storage chamber 30 behind. This layout forms a lateral (side brushes on the side of the wheel) and longitudinal (main brushes behind the wheel) cooperative relationship with the position of the front wheel 51. The side brush assembly 80 rotates to gather the garbage from both sides of the vehicle towards the center. The main brush assembly 70 receives the gathered garbage and further conveys it to the rear. Finally, it is collected by the garbage storage chamber 30 located behind the main brush, forming a continuous operation process of side brush gathering → main brush conveying → storage chamber collection. The rotatable connection between the two ensures the continuity of the cleaning action.

[0031] Two side brush assemblies 80 are symmetrically arranged on both sides of the front wheel 51, covering the edge areas on both sides of the vehicle body, solving the problem of traditional single main brushes not being able to clean the edges. The main brush assembly 70 receives the debris gathered by the side brushes and transports it backward, forming a collaborative cleaning mode of wide coverage and centralized processing, reducing missed areas and improving overall cleaning efficiency. The main brush assembly 70 is located in front of the garbage storage chamber 30, shortening the transport path of garbage from sweeping to collection, reducing the risk of garbage scattering along the way. In conjunction with the negative pressure suction function of the garbage storage chamber 30, it can quickly suck the garbage swept by the main brush into the storage chamber, improving collection efficiency.

[0032] Furthermore, the rear end of the frame 10 has a mounting bracket 12, which forms a receiving cavity for the garbage storage chamber 30 to be accommodated; the garbage storage chamber 30 can be inserted and removed into the receiving cavity.

[0033] Specifically, the mounting bracket 12 is an extension of the rear end of the frame 10. The cavity it forms provides a precise installation and positioning space for the garbage storage chamber 30. The garbage storage chamber 30 slides into the cavity through a sliding action, and the size and shape of the two match to ensure the stability of the sliding process. The cavity of the mounting bracket 12 not only supports the garbage storage chamber 30, but also enables the quick loading and unloading of the garbage storage chamber 30 through the sliding structure. When garbage needs to be cleaned, the garbage storage chamber 30 can be pulled out of the cavity; after cleaning, it can be inserted back into the cavity to reset, forming a convenient operation cycle of receiving-removing-resetting.

[0034] In this embodiment, the receiving cavity formed by the mounting bracket 12 provides rigid constraint for the garbage storage chamber 30, ensuring its fixed position at the rear end of the frame 10. This prevents the garbage storage chamber 30 from shifting or making abnormal noises due to bumps or vibrations during operation, or from affecting the fitting accuracy with the ventilation vent 11 (if any) and the main brush assembly 70. The removable design allows the garbage storage chamber 30 to be quickly pulled out of the receiving cavity without the need for tool disassembly, allowing operators to directly dump garbage. This solves the problems of cumbersome disassembly and time-consuming cleaning of traditional fixed or bolted garbage storage chambers 30, significantly shortening maintenance time.

[0035] Furthermore, the mounting frame 12 includes baffles 121 on both sides and a base plate 122 connected to the two baffles 121. The base plate 122 is used to block the front end of the garbage storage chamber 30. The rear end of the garbage storage chamber 30 has a locking assembly 31. The frame 10 has a suspension member 13 at the position corresponding to the locking assembly 31. The locking assembly 31 is fastened to the suspension member 13.

[0036] Specifically, in this embodiment, the side baffles 121 constrain the lateral displacement of the garbage storage chamber 30, preventing it from swaying left and right during insertion or operation. The bottom plate 122 is located at the front end of the mounting frame 12. When the garbage storage chamber 30 is fully inserted into the receiving cavity, the bottom plate 122 abuts against the front end of the garbage storage chamber 30, limiting its excessive forward movement and achieving longitudinal front-end positioning. After the garbage storage chamber 30 is inserted into the receiving cavity, the rear locking assembly 31 engages with the suspension member 13 on the frame 10, fixing the garbage storage chamber 30 from the longitudinal rear end. This, together with the blocking effect of the front bottom plate 122, forms a two-way limiting mechanism of front blocking and rear locking, jointly securing the garbage storage chamber 30 stably within the receiving cavity.

[0037] The side baffles 121 restrict lateral displacement, the bottom plate 122 blocks front-end displacement, and the locking assembly 31 and the suspension component 13 lock the rear end. The three together form a three-dimensional limiting structure, which completely solves the problem of easy loosening and shaking of the garbage storage chamber 30 after insertion and removal, ensuring the stability of its relative position with the ventilation vent 11 (if any) and the main brush assembly 70, and ensuring the continuity of vacuuming and garbage transportation. The front baffle and rear lock design achieves quick locking through the locking assembly 31 (it can be locked or unlocked without tools), maintaining the ease of loading and unloading operations.

[0038] Furthermore, the waste storage chamber 30 includes a housing 32, bottom wheels 33, and push rod 34; the housing 32 has a first opening 321 facing upward and a second opening 322 facing the main brush assembly 70, the first opening 321 is used to collect the waste transported by the main brush assembly 70, and the second opening 322 corresponds to the vent 11.

[0039] Specifically, in this embodiment, the waste storage chamber 30 includes a container 32, bottom wheels 33, and a push rod 34. The container 32 is the main structure for waste storage, the bottom wheels 33 assist in the movement of the container 32, and the push rod 34 facilitates the operation of the operator by pulling it out. The bottom wheels 33 are installed at the bottom of the container 32 and form a rolling engagement with the bottom plate 122 of the mounting frame 12 (or the bottom surface of the receiving cavity), which, together with the push rod 34, enables the container 32 to be smoothly inserted and removed from the receiving cavity. The push rod 34 is fixed to the rear end of the container 32, providing a point of leverage for the operator, and together with the bottom wheels 33, improves the convenience of loading and unloading. The second opening 322 faces the main brush assembly 70. When the housing 32 is inserted into the receiving cavity, the second opening 322 is aligned with the rear end of the main brush assembly 70, and the garbage swept by the main brush assembly 70 can directly enter the housing 32 through the second opening 322. The first opening 321 faces upward and corresponds to the position of the ventilation port 11 of the frame 10. When the fan 60 is working, the negative pressure generated by the ventilation port 11 acts on the housing 32 through the first opening 321, enhancing the garbage suction and retention effect.

[0040] The second opening 322 faces directly towards the main brush assembly 70, shortening the waste transport path from the main brush to the container 32 and reducing the risk of waste scattering along the way. Combined with the corresponding design of the first opening 321 and the vent 11, the negative pressure generated by the blower 60 can directly act on the interior of the container 32 through the first opening 321, forming a dual collection force of main brush pushing and negative pressure suction, improving the efficiency and thoroughness of waste entering the container 32. The bottom wheel 33 converts the sliding friction between the container 32 and the receiving cavity into rolling friction, significantly reducing the resistance to insertion and removal. Combined with the force applied by the push rod 34, operators can easily pull out and reset the container 32, solving the problem of laborious pulling in traditional wheelless structures. The two openings precisely correspond to the main brush assembly 70 and the vent 11, ensuring seamless functional connection between the waste storage chamber 30 and the sweeping system (main brush) and vacuuming system (blower 60, vent 11), avoiding problems such as missed suction and jamming due to structural mismatch, and improving the overall system synergy. The container 32 can be quickly pulled out via the bottom wheel 33 and push rod 34. Combined with the open design, there is no need to disassemble other parts when cleaning up garbage. It can be directly poured or rinsed through the open opening, further simplifying the maintenance process.

[0041] Furthermore, the bottom wall 35 of the box 32 has a recessed structure. The bottom wall 35 includes a first wall 351, a second wall 352 and a third wall 353 connected in sequence at an obtuse angle. The first wall 351 is located on the side away from the second opening 322. The junction of the first wall 351 and the second wall 352 is located at the lowest position of the box 32. The junction of the third wall 353 and the second wall 352 is higher than the junction of the first wall 351 and the second wall 352.

[0042] Specifically, in this embodiment, the first wall 351, the second wall 352, and the third wall 353 are connected sequentially at obtuse angles to form a continuous concave curved surface where the first wall 351 tilts upwards, the second wall 352 tilts downwards to the lowest point, and the third wall 353 tilts upwards. Together, they constitute the overall outline of the bottom wall 35 of the box 32. The tilt angles of each wall are matched with the size of the obtuse angles. The concave structure of the bottom wall 35 has the lowest point at the junction of the first wall 351 and the second wall 352. This lowest point is located inside the box 32 on the side away from the second opening 322, while the third wall 353 is close to the second opening 322 (because the first wall 351 is far from the second opening 322). This allows the garbage entering from the second opening 322 to accumulate along the third wall 353 and the second wall 352 towards the lowest point under the action of gravity and airflow. When the container 32 is pulled out to empty the waste, the waste at the lowest junction can slide smoothly out along the inclined first wall 351 and second wall 352. Combined with the inclined angle of the third wall 353, this avoids waste retention caused by the flatness or protrusion of the bottom wall 35, improving the thoroughness of unloading and reducing the amount of manual cleaning. The obtuse angle connection design avoids waste jamming that may be caused by right angles or acute angles, ensuring smooth flow of waste within the container 32. At the same time, the overall concave shape of the bottom wall 35 matches the position of the first opening 321 and second opening 322 of the container 32, not affecting the entry of waste through the second opening 322 or the negative pressure acting on the interior of the container 32 from the first opening 321, maintaining functional synergy with other systems.

[0043] In this embodiment, there are four bottom wheels 33, two of which are installed on the first wall 351 and the other two are installed on the third wall 353, and the axles of all bottom wheels 33 are located on the same plane.

[0044] Furthermore, the waste output end of the main brush assembly 70 is connected to the first opening 321. Specifically, the waste output end of the main brush assembly 70 precisely corresponds to the edge contour and position of the first opening 321, ensuring that the waste swept by the main brush can directly enter the interior of the first opening 321. After the main brush assembly 70 concentrates the waste by rotating, it directly transports the waste into the container 32 through the connection structure with the first opening 321, without the need for additional transfer components, forming a continuous path of main brush cleaning → direct entry into the container. The direct connection between the main brush assembly 70 and the first opening 321 completely shortens the waste transport path, avoids waste scattering between the main brush and the container 32, reduces secondary dust, and reduces the probability of waste being stuck in the middle, improving the overall cleaning-collection efficiency. There is no need to set up additional waste transfer channels or guide components, simplifying the overall vehicle structure, reducing the number of parts, and reducing assembly complexity; at the same time, it saves the space occupied by transfer components, further improving the compactness of the overall vehicle layout. This interconnected structure enables the main brush assembly 70, housing 32, and dust collection system (vent 11 corresponds to the first opening 321) to form a closed loop. The main brush pushes the garbage, and negative pressure assists in the suction from the first opening 321. Under this dual action, the thoroughness of garbage collection is further improved, and missed sweeps and residues are reduced.

[0045] Furthermore, the sweeper also includes a nozzle, which is connected to the water tank via a water pipe. A water pump is connected in series on the water pipe and is fixedly installed on the frame 10, located between the water tank and the side brush. The nozzle is an atomizing nozzle.

[0046] Specifically, the water pipe serves as the fluid transport carrier, connecting one end to the outlet of the water tank module 20 and the other end to the nozzle. A water pump is connected in series in the middle of the water pipe, forming a complete water flow channel of "water tank → water pipe → water pump → nozzle." The water pump is fixed between the water tank and the side brush on the frame 10, shortening the water pipe transmission distance and improving water flow efficiency. The water pump provides power to the water flow, drawing and pressurizing the water from the tank before delivering it through the water pipe to the atomizing nozzle. The nozzle atomizes the water flow and sprays it onto the side brush's working area, coordinating with the side brush's cleaning action to reduce dust. The water spraying dust suppression system works in conjunction with the side brush assembly 80. The atomizing nozzle can precisely cover the edge area cleaned by the side brush, preventing dust from spreading and affecting the surrounding environment. This is particularly suitable for scenarios with high cleanliness requirements, such as commercial complexes and airport bridges. The water pump is fixed to the frame 10, ensuring structural stability and not affecting the rotation of the side brush or the overall vehicle's driving flexibility. The atomizing nozzles transform water flow into fine droplets, which are then evenly sprayed onto the cleaning area. This quickly wets the ground and debris, effectively suppresses dust generated during the side brush cleaning process, improves air quality in the working environment, and avoids dust pollution.

[0047] Furthermore, a shock-absorbing rubber component (not shown in the figure) is installed between the rear wheel 52 and the frame 10.

[0048] Specifically, the shock-absorbing rubber component is located between the rear wheel 52 and the frame 10. One end is fixed to the mounting position of the rear wheel 52 on the frame 10, and the other end is connected to the axle or hub of the rear wheel 52. Through its own elastic deformation, it absorbs the vibration energy transmitted from the rear wheel 52 to the frame 10, forming a vibration transmission and buffering path from the rear wheel 52 to the shock-absorbing rubber component and then to the frame 10. The shock-absorbing rubber component effectively absorbs vibration energy, preventing severe vibrations from damaging components such as the battery module 40, water tank, and fan 60, extending the service life of core components, and reducing the failure rate. Reducing vibration also prevents the brush assembly from bouncing or experiencing unstable ground pressure due to vibration, ensuring uniform cleaning depth and reducing issues such as missed areas or incomplete cleaning, making it particularly suitable for operation on complex and bumpy roads.

[0049] 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 low-center-of-gravity sweeper, characterized in that, include: The vehicle frame has a horizontally arranged mounting plane; A water tank module, which is mounted above the mounting plane and located at the front end of the vehicle frame; A waste storage compartment is installed at the rear end of the vehicle frame and located below the mounting plane; A battery module, which is mounted in the middle of the vehicle frame and located above the mounting plane; The wheel assembly includes a front wheel and two rear wheels, with the front wheel located below the water tank module and the rear wheels positioned close to the waste storage compartment.

2. The sweeper as described in claim 1, characterized in that, The sweeper also includes a fan and a blower box located directly above the garbage storage chamber. The fan and blower box are located on the mounting plane. The frame has a ventilation opening that communicates with the blower box and the garbage storage chamber. The blower box contains a removable filter element.

3. The sweeper as described in claim 1, characterized in that, The sweeper also includes a main brush assembly and a side brush assembly rotatably connected to the frame. The two side brush assemblies are respectively disposed on both sides of the front wheel, and the main brush assembly is located behind the side brush assembly and in front of the garbage storage chamber.

4. The sweeper as described in claim 1, characterized in that, The rear end of the vehicle frame has a mounting bracket, which forms a receiving cavity for the waste storage chamber to be accommodated; the waste storage chamber is removable and insertable into the receiving cavity.

5. The sweeper as described in claim 4, characterized in that, The mounting frame includes baffles on both sides and a base plate connected to the two baffles. The base plate is used to block the front end of the garbage storage chamber. The rear end of the garbage storage chamber has a locking assembly. The frame has a suspension member at a position corresponding to the locking assembly. The locking assembly is fastened to the suspension member.

6. The sweeper as described in claim 3, characterized in that, The waste storage chamber includes a container, bottom wheels, and a push rod; the container has a first opening facing upwards and a second opening facing the main brush assembly, the first opening being used to collect waste transported by the main brush assembly, and the second opening corresponding to a vent.

7. The sweeper as described in claim 6, characterized in that, The bottom wall of the box has a concave structure, including a first wall, a second wall and a third wall connected in sequence at an obtuse angle. The first wall is located on the side away from the second opening. The intersection of the first wall and the second wall is located at the lowest position of the box. The intersection of the third wall and the second wall is higher than the intersection of the first wall and the second wall.

8. The sweeper as described in claim 6, characterized in that, The main brush component is connected to the first opening.

9. The sweeper as described in claim 3, characterized in that, The sweeper also includes a nozzle, which is connected to the water tank via a water pipe. A water pump is connected in series on the water pipe and is fixedly installed on the vehicle frame, located between the water tank and the side brush. The nozzle is an atomizing nozzle.

10. The sweeper as described in claim 4, characterized in that, A shock-absorbing rubber component is installed between the rear wheel and the vehicle frame.

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