Sweeper negative pressure dust removal structure and high-speed sweeper

Abstract

The utility model discloses a kind of cleaning vehicle negative pressure dust removal structure and high-speed cleaning vehicle, comprising: bunker, multiple bunker openings are opened in its top portion;Air collecting plate, detachably mounted in bunker top portion and located above bunker opening, the air collecting plate is U-shaped flared structure, and the direction of flared is towards the direction of vehicle head;Spoiler, detachably mounted in air collecting plate inner side and located above bunker opening, the spoiler includes curved surface plate, the recess of the curved surface plate is towards the direction of vehicle tail, gap is equipped between the top portion of curved surface plate and air collecting plate and forms airflow passage, the bottom of curved surface plate is contacted with bunker;Air current of vehicle travel is guided and accelerated after air collecting plate, and then impact the recess of curved surface plate, negative pressure zone is generated above bunker opening, so that suspended dust in bunker is discharged upwards along with air current, to realize the removal of suspended dust.The utility model can make suspended dust in bunker discharge upwards along with air current, to realize the removal of unpowered suspended dust.

Description

Technical Field

[0001] This utility model relates to a negative pressure dust removal structure for a sweeper and a high-speed sweeper, belonging to the technical field of road cleaning equipment. Background Technology

[0002] When existing high-speed sweepers are in operation, the dust raised by the roller brush and side brushes enters the hopper, and some of the fine dust will form suspended aerosols in the hopper, which is difficult to remove completely. This problem has long restricted the cleaning efficiency and environmental performance. To address this pain point, traditional solutions have obvious limitations: (1) Fan suction type: It is necessary to equip an additional high-power fan to extract the air in the hopper, which will not only significantly increase the energy consumption of the equipment, but also increase the complexity of the overall structure, thereby increasing the failure rate and reducing the stability of equipment operation. (2) Filter interception type: Fine dust is easy to adhere to and clog the filter, which leads to a continuous increase in wind resistance, which not only reduces the dust removal effect, but also requires frequent shutdown for maintenance, which greatly increases the manpower input and time cost, and affects the continuity of operation.

[0003] None of the above solutions can effectively remove suspended dust, ultimately leading to two types of problems: uncaptured dust particles easily form secondary dust, causing secondary environmental pollution; frequent filter clogging forces the equipment to be shut down repeatedly for cleaning, severely reducing the efficiency of continuous operation, thus doubly restricting the economic and environmental benefits of cleaning operations. Summary of the Invention

[0004] To address the problems existing in the prior art, this utility model provides a negative pressure dust removal structure for a sweeper and a high-speed sweeper, which allows suspended dust in the hopper to be discharged upward with the airflow, achieving non-powered removal of suspended dust.

[0005] To achieve the above objectives, this utility model employs a negative pressure dust removal structure for a sweeper, comprising:

[0006] The silo has multiple openings at its top;

[0007] The air collecting plate is detachably installed on the top of the hopper and located above the hopper opening. The air collecting plate has a U-shaped flared structure, and the flared direction is towards the front of the vehicle.

[0008] A spoiler is detachably installed inside the air collecting plate and above the hopper opening. The spoiler includes a curved panel with a notch facing the rear of the vehicle. A gap is provided between the top of the curved panel and the air collecting plate to form an airflow channel, and the bottom of the curved panel contacts the hopper. The airflow from the vehicle is accelerated by the air collecting plate and impacts the notch of the curved panel, creating a negative pressure zone above the hopper opening. This causes suspended dust in the hopper to be discharged upward with the airflow, thus removing the suspended dust.

[0009] As an improvement, the air collecting plate includes a variable cross-section U-shaped plate and a constant cross-section U-shaped plate, and the variable cross-section U-shaped plate is connected to the constant cross-section U-shaped plate; the variable cross-section U-shaped plate includes a large opening end and a small opening end, the sidewall of the variable cross-section U-shaped plate gradually expands from the small opening end to the large opening end, the large opening end faces the front of the vehicle, and a gap is provided between the top of the curved plate and the bottom of the constant cross-section U-shaped plate to form the airflow channel.

[0010] As an improvement, the spoiler is provided in multiple parts, and each spoiler also includes a first connecting plate installed on both sides of the curved panel;

[0011] The inner side of the U-shaped plate with uniform cross-section is provided with multiple second connecting plates, and the first connecting plate is connected to the U-shaped plate with uniform cross-section and the second connecting plates by bolts.

[0012] As an improvement, the first connecting plate has a first connecting hole, and the two sides of the U-shaped plate with equal cross-section and the second connecting plate have second connecting holes.

[0013] As an improvement, the bottom of the variable cross-section U-shaped plate, the constant cross-section U-shaped plate, and the second connecting plate are all provided with bent edges, and through holes for bolting the hopper are opened on the bent edges.

[0014] As an improvement, the hopper opening is an oblong hole, which is horizontally opened at the top of the hopper.

[0015] As an improvement, the maximum height H between the air collecting plate and the hopper is three times the maximum height h between the curved plate and the hopper.

[0016] In a second aspect, this utility model also provides a high-speed sweeper, wherein the high-speed sweeper is equipped with the aforementioned negative pressure dust removal structure.

[0017] Compared with the prior art, the negative pressure dust removal structure of the sweeper of this utility model has the following beneficial effects:

[0018] (1) High-efficiency dust removal without power, significantly reducing energy consumption. This utility model utilizes the natural airflow generated by vehicle movement, and through the coupling design of the spoiler and the air collecting plate, converts the driving kinetic energy into the negative pressure energy required for dust removal. Based on the Bernoulli effect, a negative pressure zone is formed above the hopper opening, which can remove suspended dust without the need for an additional electric fan. It is expected to reduce the additional fan power requirement by more than 30%, completely eliminating the high energy consumption problem of traditional fan suction solutions.

[0019] (2) Reduce maintenance costs and improve operational continuity. Both the baffle and the air collection plate of this utility model are detachable, making maintenance and replacement convenient; the air collection plate has a U-shaped flared structure, which, together with negative pressure, directly discharges suspended dust, avoiding frequent clogging of the filter screen, extending the filter screen maintenance cycle by 2-3 times, reducing the frequency of downtime maintenance, and significantly improving continuous operation efficiency.

[0020] (3) Optimize structural adaptability and reduce application limitations. The air collecting plate of this utility model has a U-shaped flared structure and is designed to conform to the top surface of the silo, which solves the spatial interference problem of traditional dust removal pipes and is compatible with more vehicle models; at the same time, the baffle adopts a streamlined curved surface structure to avoid the whistling noise generated by high-speed airflow and improve the comfort of the working environment.

[0021] (4) Improve environmental performance and reduce secondary pollution. This utility model directly discharges suspended dust through a negative pressure mechanism, and the suspended dust removal rate is expected to be increased by 40-60%, thus avoiding secondary environmental pollution caused by uncaptured dust at the source, which meets the needs of environmental protection and sustainable development. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a left view (partial cross-sectional view) of the present invention;

[0025] Figure 3 This is a rear view of the present invention;

[0026] Figure 4 This is a top view of the hopper opening of this utility model;

[0027] Figure 5 This is a three-dimensional structural diagram of the spoiler of this utility model;

[0028] Figure 6 This is a three-dimensional structural diagram of the air collecting plate of this utility model;

[0029] Figure 7 This is a schematic diagram of the connection structure between the spoiler and the air collecting plate of this utility model. Figure 1 ;

[0030] Figure 8 This is a schematic diagram of the connection structure between the spoiler and the air collecting plate of this utility model. Figure 2 ;

[0031] In the diagram: 1. Hopper, 11. Hopper opening, 2. Baffle plate, 21. First connecting plate, 22. Curved plate, 23. First connecting hole, 3. Air collecting plate, 31. Variable cross-section U-shaped plate, 32. Constant cross-section U-shaped plate, 33. Second connecting plate, 4. Airflow channel. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this application will be described in detail below through specific embodiments. It should be understood that the embodiments of this application and the specific features in the embodiments are detailed descriptions of the technical solutions of this application, rather than limitations on the technical solutions of this application. In the absence of conflict, the embodiments of this application and the technical features in the embodiments can be combined with each other.

[0033] In the description of this utility model, it should be understood that the terms "lateral", "longitudinal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only used to facilitate the description of this utility model and simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0034] like Figures 1-8 As shown, a negative pressure dust removal structure for a sweeper includes a hopper 1 and an air collecting plate 3 and a baffle plate 2 installed on the hopper 1.

[0035] The top of the silo 1 has multiple silo openings 11. The silo 1 serves as the base for dust collection, and the top openings provide channels for the discharge of suspended dust. The multiple openings design can expand the dust discharge range, increase the coverage area of ​​the negative pressure effect, and ensure that suspended dust in different areas of the silo can be effectively discharged.

[0036] The air collecting plate 3 is detachably installed on the top of the hopper 1 and located above the hopper opening 11. The air collecting plate 3 has a U-shaped flared structure and the flared direction is towards the front of the vehicle. It can efficiently collect the natural airflow generated by the vehicle's movement and guide the airflow to accelerate through the gradually expanding shape, providing power for the formation of negative pressure.

[0037] The baffle 2 is detachably installed inside the air collecting plate 3 and above the hopper opening 11. The baffle 2 includes a curved panel 22 with a notch facing the rear of the vehicle. It works with the air collecting plate 3 to form an airflow path, allowing the accelerated airflow to precisely impact the notch and generate a stable negative pressure based on the Bernoulli effect. A gap is provided between the top of the curved panel 22 and the air collecting plate 3 to form an airflow channel 4, providing a directional flow path for the airflow. This ensures that the airflow acts on the curved panel 22 according to the designed trajectory, ensuring the stable formation of the negative pressure zone and avoiding airflow turbulence that could affect dust removal efficiency. The bottom of the curved panel 22 contacts the hopper 1, which can seal the excess space at the edge of the hopper opening, allowing the negative pressure to concentrate on the hopper opening area, enhancing the negative pressure intensity and improving the discharge effect of suspended dust.

[0038] In some embodiments, such as Figures 6-8 As shown, the air collecting plate 3 includes a variable cross-section U-shaped plate 31 and a constant cross-section U-shaped plate 32. The variable cross-section U-shaped plate 31 and the constant cross-section U-shaped plate 32 are connected, which can stably receive the airflow accelerated by the variable cross-section U-shaped plate 31 and ensure the smoothness of the airflow.

[0039] The variable cross-section U-shaped plate 31 includes a large opening end and a small opening end. The sidewall of the variable cross-section U-shaped plate 31 gradually expands from the small opening end to the large opening end (it has a gradually narrowing shape from the large opening end to the small opening end). The large opening end faces the front of the vehicle. This structure can efficiently collect the natural airflow generated by the vehicle's movement and accelerate the airflow with the help of the gradually narrowing shape, providing stronger power for the subsequent formation of negative pressure.

[0040] A gap is provided between the top of the curved panel 22 and the bottom of the U-shaped plate 32 with equal cross-section to form the airflow channel 4, which can accurately guide the airflow to act on the curved panel 22 according to the design path, ensuring the stable generation of the negative pressure zone and improving the dust removal effect.

[0041] In some embodiments, such as Figures 5-8 As shown, multiple baffles 2 are provided, which can cover multiple hopper openings 11 to improve the uniformity and coverage of the negative pressure effect and ensure that suspended dust at each opening can be effectively removed. Each baffle 2 also includes a first connecting plate 21 installed on both sides of the curved panel 22. Multiple second connecting plates 33 are provided on the inner side of the U-shaped plate 32 with equal cross-section, and the second connecting plates 33 are arranged along the longitudinal direction of the hopper 1 (same as the vehicle driving direction). The first connecting plate 21 is connected to the U-shaped plate 32 with equal cross-section and the second connecting plate 33 by bolts. On the one hand, the connection between the baffle 2 and the air collecting plate 3 is more stable, ensuring the stability of the structure when the airflow impacts. On the other hand, the bolt connection method facilitates disassembly and installation, providing convenience for later maintenance and replacement of parts. At the same time, the design of multiple connecting plates can distribute the force and extend the service life of the structure.

[0042] In some embodiments, such as Figures 5-8As shown, the first connecting plate 21 has a first connecting hole 23, and the two sides of the U-shaped plate 32 with equal cross-section and the second connecting plate 33 have second connecting holes, which facilitate bolt connection.

[0043] In some embodiments, such as Figures 6-8 As shown, the bottom of the variable cross-section U-shaped plate 31, the constant cross-section U-shaped plate 32, and the second connecting plate 33 are all provided with bent edges, and through holes are opened on the bent edges for bolting the hopper 1. The bent edges increase the contact area with the hopper 1, and together with the through holes, bolts can be tightened, which can more firmly fix the air collecting plate 3 to the hopper 1, preventing loosening when vehicles are moving or when airflow impacts, and ensuring the overall stability of the structure.

[0044] In some embodiments, such as Figure 4 As shown, the hopper opening 11 is an elongated hole. The elongated hole is opened horizontally (perpendicular to the vehicle's driving direction) at the top of the hopper 1. The horizontal extension shape of the elongated hole can better adapt to the coverage area of ​​multiple spoilers 2, increase the corresponding area of ​​the negative pressure zone above the hopper opening 11, make the negative pressure effect more evenly cover the opening area, and improve the adsorption efficiency of suspended dust in the hopper.

[0045] In some embodiments, such as Figure 2 As shown, H is the vertical distance from the top of the air collecting plate to the hopper 1, and h is the vertical distance from the top of the curved panel to the hopper. H / h = 3. The reasonable height difference provides sufficient space for the airflow within the air collecting plate 3, ensuring that the variable cross-section U-shaped plate 31 can effectively collect and accelerate the airflow, and that the accelerated airflow can impact the curved panel recess at a suitable angle and speed. Relying on the Bernoulli effect, a negative pressure zone with suitable strength is stably formed, ensuring that suspended dust is efficiently discharged.

[0046] Finally, this utility model also provides a high-speed sweeper equipped with the aforementioned negative pressure dust removal structure. High-speed sweepers travel at high speeds, and traditional dust removal structures are prone to reduced dust removal efficiency due to airflow turbulence. However, the negative pressure dust removal structure of this utility model, through its optimized layout of spoilers and air collecting plates, can adapt to the airflow characteristics at high speeds. Even at high speeds, it can still stably form an effective negative pressure, ensuring efficient removal of suspended dust at the hopper opening and preventing dust removal failure or diminished effectiveness due to increased vehicle speed.

[0047] When the sweeper is traveling at high speed, the natural airflow generated by the vehicle's movement is accelerated by the air collection plate 3 and then impacts the notch of the baffle plate 2. Based on the Bernoulli effect, a negative pressure zone is formed above the hopper opening 11, which causes the suspended dust in the hopper to be discharged upward with the airflow, thus achieving the effect of removing suspended dust without power.

[0048] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this utility model and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

Claims

1. A negative pressure dust removal structure for a sweeper, characterized in that, include: The silo (1) has multiple silo openings (11) on its top; The air collecting plate (3) is detachably installed on the top of the hopper (1) and located above the hopper opening (11). The air collecting plate (3) has a U-shaped flared structure and the flared direction is towards the front of the vehicle. The spoiler (2) is detachably installed inside the air collecting plate (3) and above the hopper opening (11). The spoiler (2) includes a curved panel (22). The notch of the curved panel (22) faces the rear of the vehicle. There is a gap between the top of the curved panel (22) and the air collecting plate (3) to form an airflow channel (4). The bottom of the curved panel (22) is in contact with the hopper (1). The airflow of the vehicle is accelerated by the air collecting plate (3) and impacts the notch of the curved panel (22), generating a negative pressure zone above the hopper opening (11), so that the suspended dust in the hopper (1) is discharged upward with the airflow, thereby achieving the removal of suspended dust.

2. The negative pressure dust removal structure for a sweeper according to claim 1, characterized in that, The air collecting plate (3) includes a variable cross-section U-shaped plate (31) and a constant cross-section U-shaped plate (32), and the variable cross-section U-shaped plate (31) is connected to the constant cross-section U-shaped plate (32). The variable cross-section U-shaped plate (31) includes a large opening end and a small opening end. The side wall of the variable cross-section U-shaped plate (31) gradually expands from the small opening end to the large opening end. The large opening end faces the front of the vehicle. A gap is provided between the top of the curved panel (22) and the bottom of the constant cross-section U-shaped plate (32) to form the airflow channel (4).

3. The negative pressure dust removal structure for a sweeper according to claim 2, characterized in that, The spoiler (2) is provided in multiple parts, and each spoiler (2) also includes a first connecting plate (21) installed on both sides of the curved panel (22); The inner side of the U-shaped plate (32) with equal cross-section is provided with a plurality of second connecting plates (33), and the first connecting plate (21) is connected to the U-shaped plate (32) with equal cross-section and the second connecting plates (33) by bolts.

4. The negative pressure dust removal structure for a sweeper according to claim 3, characterized in that, The first connecting plate (21) has a first connecting hole (23), and the two sides of the U-shaped plate (32) and the second connecting plate (33) have second connecting holes.

5. The negative pressure dust removal structure for a sweeper according to claim 2, characterized in that, The bottom of the variable cross-section U-shaped plate (31), the constant cross-section U-shaped plate (32), and the second connecting plate (33) are all provided with bent edges, and through holes for bolting the hopper (1) are opened on the bent edges.

6. The negative pressure dust removal structure for a sweeper according to claim 1, characterized in that, The opening (11) of the hopper is an oblong hole, which is horizontally opened at the top of the hopper (1).

7. The negative pressure dust removal structure for a sweeper according to claim 1, characterized in that, The maximum height H between the air collecting plate (3) and the hopper (1) is 3 times the maximum height h between the curved plate (22) and the hopper (1).

8. A high-speed sweeper, characterized in that, The high-speed sweeper is equipped with the negative pressure dust removal structure of the sweeper as described in any one of claims 1-7.

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