A multi-outlet fan based on a sanitation blowing vehicle

Abstract

The utility model discloses a kind of based on multiple air outlet fan of sidewalk cleaning blowing vehicle, it is related to fan technical field, including sidewalk blowing vehicle and mounting bracket, wherein mounting bracket is located at blowing vehicle seat bottom, mounting bracket upper portion is equipped with fan device by hoop, fan device is constituted by volute, motor, air inlet safety protection net, volute backplate, fan impeller and air pipe, air inlet net and fan volute backplate are respectively arranged in the two sides of volute, fan impeller is located in volute, the size design of the present application optimization volute and fan impeller, so that air volume is increased, and the air volume of different air outlet is also reasonably distributed, reasonably add three air outlets, make blowing vehicle have front blowing and side blowing two directions to carry out blowing operation in all directions, effectively eliminate blowing vehicle when operating vehicle right side and vehicle bottom operating blind area and garbage omission, improve the coverage of blowing vehicle operation to road surface, improve cleanliness and operating efficiency.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, and in particular to a multi-outlet fan based on a sanitation sweeping vehicle. Background Technology

[0002] Sanitation blowers are specialized equipment used in environmental cleaning, primarily for tasks such as leaf sweeping and street dust removal. Their core function is to utilize the high-speed airflow of the blower to suck up or blow away litter from the road surface. The sweeping vehicle involved in this project utilizes the blower's high-pressure airflow to sweep litter from roads, especially sidewalks. Market research has revealed that most blowers on the market are single-outlet blowers, where all the high-pressure air generated by the fan blades is concentrated at a single outlet. This prevents the blower from reaching the right side of the vehicle and the underside during actual street cleaning operations, creating blind spots and causing litter to be missed, severely impacting the effectiveness of the operation. Utility Model Content

[0003] Therefore, in order to solve the above problems and shortcomings, this utility model provides a multi-outlet fan based on a sanitation sweeping vehicle, including a sidewalk sweeping vehicle and a mounting frame. The mounting frame is located at the bottom of the seat of the sidewalk sweeping vehicle. A fan device is installed inside the mounting frame by a clamp. The fan device consists of a volute, a motor, an air inlet screen, a fan volute back plate, a fan impeller, and an air duct. The air inlet screen and the fan volute back plate are respectively set on both sides of the volute. The fan impeller is located inside the volute, and the motor is installed on one side of the fan volute back plate and is connected to the fan impeller through its drive shaft.

[0004] Furthermore, a volute groove is formed along the inner edge of the volute. The inner diameter of the volute groove is close to the width of the fan impeller. The depth and radius of the volute groove are improved based on the traditional volute. At the same time, the two sides of the fan impeller (crank disc and flat disc) are located exactly on both sides of the volute groove.

[0005] Furthermore, side air nozzles and front air nozzles are respectively opened on the outer edge of the volute, and a bottom air nozzle is provided along one side of the side air nozzle. The side air nozzles and front air nozzles are set at a certain angle. The side air nozzles, front air nozzles and bottom air nozzles are all smoothly connected to the curved groove of the volute, which facilitates the direct transmission of airflow in the curved groove of the volute. The shape of the volute has been specially optimized so that the air volume is reasonably distributed at different air outlets.

[0006] Furthermore, the air duct is connected to the end of the front air nozzle by a clamp, and the front air nozzle is guided by the air duct to the air outlet facing the direction of vehicle travel.

[0007] Furthermore, the fan impeller consists of a crankshaft, a flat disc, and fan blades. The crankshaft and flat disc are arranged concentrically and parallel to each other and are fixedly connected by the fan blades. The crankshaft has a protruding opening at its center, and the fan blades are evenly distributed in a ring along the inner side of the opening and extend to the edge of the crankshaft. The size and number of impeller blades of the fan impeller have been optimized to effectively balance wind pressure, air volume, and energy consumption, so as to generate the best purging force at each outlet with the lowest energy consumption.

[0008] Furthermore, the blower unit is installed in parallel within the mounting frame, with the side nozzles and front nozzles located on both sides of the mounting frame, and the bottom nozzle at the bottom of the mounting frame. The side nozzles adopt a special shield-shaped design to ensure the longest possible sweeping effect on road debris under the same wind pressure.

[0009] Furthermore, the fan blades are heightened with an arc-shaped gradient and their length is optimized to increase the air intake and improve the purging effect.

[0010] The beneficial effects of this utility model can be specifically analyzed as follows:

[0011] Advantage 1: The blower casing has a three-outlet design. Unlike the single-outlet design of traditional blowers, the multi-outlet design of this blower allows for the simultaneous output of strong airflow to different pipelines in multiple directions within a single blower, thus meeting the needs of the sidewalk sweeper to clean up ground debris from all directions and angles during operation.

[0012] Advantage 2: The blower unit is horizontally installed within the mounting frame, with the front and side nozzles located on the upper and lower sides of the blower, respectively, and the bottom nozzle at the bottom of the mounting frame. The front nozzle, positioned horizontally above the blower, allows for the installation of a manual butterfly valve for selective on / off control of the airflow from the front duct. The side and bottom nozzles are angled towards the ground. The side nozzles feature a special shield-shaped design to maximize the sweeping distance of road debris under the same wind pressure. The blower impeller employs a sandwich design with upper and lower curved discs, a flat disc, and blades, ensuring unidirectional airflow within the relatively enclosed space of the impeller, reducing energy loss from internal backflow. Optimized blade dimensions further enhance the airflow, achieving a wind speed of 60 m / s at the three outlets, enabling long-distance, close-range sweeping of most debris and leaves.

[0013] Advantage 3: The depth and radius of the vortex-shaped groove have been improved compared to the traditional vortex-shaped groove. The optimized vortex-shaped groove has increased both its depth and diameter, resulting in increased airflow and a more reasonable distribution of airflow to different outlets. The specially designed shield-shaped side nozzles allow for a more focused distribution of airflow in the radial direction, ensuring the longest possible sweeping effect on road debris under the same wind pressure. The relatively small diameter of the bottom nozzles allows for the blowing of fallen leaves and debris at the bottom of the mounting frame, directly addressing the problem of debris accumulation at the bottom of the sidewalk sweeper and achieving thorough cleaning. It can sweep sidewalks longer than 6 meters. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the multi-outlet fan based on a sanitation sweeping vehicle, which is the overall design of this utility model.

[0015] Figure 2 This is a utility model Figure 1 Top view in the middle;

[0016] Figure 3 This is a utility model Figure 1 One of the schematic diagrams of a medium-sized fan unit;

[0017] Figure 4 This is a utility model Figure 1 Schematic diagram of the medium-sized fan unit (Part 2);

[0018] Figure 5 This is a utility model Figure 3 A diagram illustrating the explosion;

[0019] Figure 6 This is a utility model Figure 5 A schematic diagram of a medium-sized fan impeller;

[0020] Reference numerals: 1. Sidewalk sweeper; 2. Fan unit; 2. Vortex casing; 201. Vortex casing groove; 211. Side air nozzle; 212. Front air nozzle; 213. Bottom air nozzle; 214. Motor; 202. Air inlet screen; 203. Fan volute back plate; 204. Fan impeller; 205. Crank disc; 251. Flat disc; 252. Fan blade; 253. Mounting bracket; 3. Air duct; 206. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Throughout the invention, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] It should be understood that ordinal numbers and directional descriptions, such as "first," "second," "third," "upper," "lower," "left," and "right," are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly and not as limiting the scope of this utility model.

[0023] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Please refer to the attached drawings. Figure 1-6 As shown, this application provides a multi-outlet fan based on a sanitation sweeping vehicle, including a sidewalk sweeping vehicle 1 and a mounting frame 3. The mounting frame 3 is located at the bottom of the seat of the sidewalk sweeping vehicle 1. A fan device 2 is installed inside the mounting frame 3 via clamps. The fan device 2 consists of a volute 201, a motor 202, an air inlet screen 203, a fan volute back plate 204, a fan impeller 205, and an air duct 206. The air inlet screen 203 and the fan volute back plate 204 are respectively located on both sides of the volute 201. The fan impeller 205 is located inside the volute 201, and the motor 202 is installed on one side of the fan volute back plate 204 and is connected to the fan impeller 205 through its drive shaft. In the described embodiment, the blower device 2 is mounted on the sidewalk sweeper vehicle 1 via the mounting bracket 3, and is continuously powered by the large-capacity lithium battery mounted on the sidewalk sweeper vehicle 1. The air inlet screen 203 adopts a large-pore density filter design, the blower impeller 205 adopts a double-layer blower design, and the blower volute 201 has a three-outlet design. Unlike the single-outlet design of traditional blowers, the multi-outlet design of this blower allows strong airflow to be output to different pipelines in multiple directions simultaneously within a single blower. This meets the needs of the sidewalk sweeper vehicle 1 to sweep and clean ground debris in three directions: the left and right sides of the vehicle's travel direction and the bottom of the vehicle, leaving no dead corners or blind spots.

[0024] Please refer to the following for details. Figure 4-6 As shown, a vortex shell groove 211 is formed along the inner edge of the vortex shell 201, and the inner diameter of the vortex shell groove 211 is close to the width of the fan impeller 205. Side air nozzles 212 and front air nozzles 213 are respectively opened on the outer edge of the vortex shell 201, and a bottom air nozzle 214 is provided along one side of the side air nozzle 212. The side air nozzles 212 and front air nozzles 213 are centrally symmetrically arranged. The side air nozzles 212, front air nozzles 213 and bottom air nozzles 214 are all smoothly connected to the vortex shell groove 211 to facilitate the direct transmission of airflow in the vortex shell groove 211. The fan device 2 is inclined in the mounting frame 3, and the side air nozzles 212 and front air nozzles 213 are located on both sides of the mounting frame 3, and the bottom air nozzle 214 is located at the bottom of the mounting frame 3. The side air nozzles 212 adopt a special shield-shaped design to ensure the farthest sweeping effect on road debris under the same wind pressure. The air duct 206 is connected to the end of the front air nozzle 213 by a clamp.

[0025] Based on the above embodiments, the depth and radius of the volute groove 211 have been improved compared to the traditional volute. At the same time, the two sides of the fan impeller 205 are located on both sides of the volute groove 211. The optimized volute groove 211 has increased in both depth and diameter, which increases the air volume and makes the air volume of different air outlets more reasonable. The specially designed shield-shaped side air nozzles 212 make the air blowing radial distribution more important, ensuring that the road surface garbage is swept to the farthest distance under the same wind pressure. The bottom air nozzle 214 has a relatively small diameter, which can blow fallen leaves and garbage at the bottom of the mounting frame 3 out of the vehicle. The front air nozzle 213 is guided by the air duct 206 to the air outlet facing the direction of vehicle travel, realizing the effect of driving and working at the same time, and can sweep sidewalks of more than 6 meters.

[0026] like Figure 5-6 The fan impeller 205 consists of a crankshaft 251, a flat disc 252, and fan blades 253. The crankshaft 251 and the flat disc 252 are set in parallel and are fixedly connected by the fan blades 253. The crankshaft 251 has a protruding opening at its center, and the fan blades 253 are evenly distributed in a ring along the inner side of the opening and extend to the edge of the crankshaft 251. The size of the fan impeller 205 has been enlarged, which effectively improves the air volume.

[0027] Based on the above embodiments, the crankshaft 251 of the fan impeller 205 is open for the intake of external air, and the arc-shaped, inclined fan blades 253 increase the air intake by increasing the contact area. The flat disc 252 is connected to the drive shaft of the motor 202. In actual measurement, the power of the motor 202 is 2KW. The high-speed rotation makes the speed of the fan impeller 205 reach 3000 rpm, and the wind speed at the three outlets reaches 60 m / s. The road surface width is more than 6 meters, and most garbage and leaves can be swept close to the ground.

[0028] In summary, this utility model, based on the multi-outlet fan of a sanitation sweeping vehicle, optimizes the design of the vortex casing and fan size, thereby increasing the air volume and rationally distributing the air volume of different outlets. The addition of three outlets effectively sweeps the left and right sides of the vehicle and the bottom of the vehicle, eliminating blind spots in operation.

[0029] The above are merely embodiments of this utility model. Common knowledge such as specific structures and characteristics in the solutions are not described in detail here. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and they will not affect the implementation effect of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A multi-outlet fan based on a sanitation sweeper truck, comprising a sidewalk sweeper truck (1) and a mounting frame (3), wherein the mounting frame (3) is located at the bottom of the seat of the sidewalk sweeper truck (1), characterized in that: The fan device (2) is installed inside the mounting bracket (3) by a clamp. The fan device (2) consists of a volute (201), a motor (202), an air inlet screen (203), a fan volute back plate (204), a fan impeller (205), and a duct (206). The air inlet screen (203) and the fan volute back plate (204) are respectively located on both sides of the volute (201). The fan impeller (205) is located inside the volute (201), and the motor (202) is installed on one side of the fan volute back plate (204) and is connected to the fan impeller (205) through its drive shaft.

2. The multi-outlet fan based on a sanitation sweeping vehicle according to claim 1, characterized in that: A vortex groove (211) is formed along the inner edge of the vortex (201), and the inner diameter of the vortex groove (211) is close to the width of the fan impeller (205).

3. The multi-outlet fan based on a sanitation sweeping vehicle according to claim 1, characterized in that: The outer edge of the vortex shell (201) is provided with a side air nozzle (212) and a front air nozzle (213), and a bottom air nozzle (214) is provided along one side of the side air nozzle (212). The side air nozzle (212) and the front air nozzle (213) are set at a certain angle. The side air nozzle (212), the front air nozzle (213) and the bottom air nozzle (214) are all smoothly connected with the vortex shell groove (211).

4. The multi-outlet fan based on a sanitation sweeping vehicle according to claim 1, characterized in that: The air duct (206) is connected to the end of the front air nozzle (213) by a clamp.

5. A multi-outlet fan based on a sanitation sweeping vehicle according to claim 1, characterized in that: The impeller (205) is composed of a crankshaft (251), a flat impeller (252) and a fan blade (253). The crankshaft (251) and the flat impeller (252) are concentrically arranged and fixedly connected by the fan blade (253). The crankshaft (251) has a protruding opening at its center, and the fan blade (253) is evenly distributed in a ring along the inner side of the opening and extends to the edge of the crankshaft (251).

6. The multi-outlet fan based on a sanitation sweeping vehicle according to claim 1, characterized in that: The fan device (2) is installed at an angle inside the mounting frame (3), and the side air nozzle (212) and the front air nozzle (213) are located on both sides of the mounting frame (3), and the bottom air nozzle (214) is located at the bottom of the mounting frame (3).

7. The multi-outlet fan based on a sanitation sweeping vehicle according to claim 5, characterized in that: The fan blade (253) is arranged in an arc-shaped, inclined manner.

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