Circulation blower mechanism of floor sweeper

Abstract

The invention discloses a circulating air blowing mechanism of a ground sweeper, which adopts an exhaust fan dust suction method to clean up garbage and dust on the ground; a storage battery is equipped on the front beam frame of the vehicle in series to drive the exhaust fan to operate; most of the wind exhausted by the fan operation is discharged from the peripheral filter mesh holes, and part of the wind is used to be discharged from a plurality of pipe holes connected in series from pipelines on both sides at a certain height from the ground, so that the dust and residue on the ground on both sides are concentratedly blown into the air inlet at the rear of the vehicle, and then enter the air duct for wind and residue separation, and then the residue and residue fall into the residue storage box below and are compacted and stored, and then sent to the residue yard for discharge. The vehicle is equipped with sensors, numerical controllers, infrared monitoring, hydraulic pumps, automatic high and low control, and has a wide, fast and clean cleaning area. It is widely used in streets, highways, squares, airports, lanes, etc., saves a lot of manpower cleaning costs, achieves energy conservation and environmental protection, reduces dust and sand air pollution and reduces haze, has good cleaning environment effectiveness and economic benefits, and solves the dilemma of difficult ground garbage cleaning.

Description

Technical Field

[0001] The present invention relates to the technical field of floor-sweeping vehicles, and more specifically, to a mechanism for circulating air blowing of a ground road sweeper. Background Art

[0002] There are also many deficiencies in the floor-sweeping vehicle technology used on urban streets. Its cleaning area on the ground is narrow, the speed is slow, and it causes wear to the ground. It still cannot meet the requirements for the environmental protection and cleaning of urban streets, and there is still a long way to achieve fully mechanized operation. The most important thing is that it only cleans but does not recycle and clean, and does not play a cleaning role. Summary of the Invention

[0003] The purpose of the present invention is to realize an automatic ground environmental protection vehicle, which uses the air from a suction fan to suck up ground garbage and dust residues, compact them into the carriage and send them to the landfill, keeping the ground clean and tidy, greatly reducing ground dust pollution and the trouble of reducing haze, playing a major role in urban environmental protection, reducing a large amount of labor for manual cleaning, saving a large amount of cleaning costs. During the operation process, it is equipped with an advanced sensing system and a numerical control system, and has a wide cleaning area, high speed, and is clean, without wearing the ground. It can clean dust residues on streets, roads, airports, squares, etc., and can solve the problems of the cleanliness and environmental protection of cities and roads for a long time.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: including a beam frame, blow slag pipes are provided on both sides of the beam frame, and the front ends of the blow slag pipes on both sides are wider and the rear ends are narrower, forming a funnel shape. The rear end of the beam frame corresponds to a slag suction port. The blow slag pipe is provided with an air outlet offset, and a wind direction baffle is provided at the air outlet offset.

[0005] The floor-sweeping vehicle is provided with a beam frame at the bottom. The beam frame is provided with blow slag pipes on both sides respectively. The blow slag pipes are relatively arranged on both sides of the vehicle frame, and each blow slag pipe is provided with a plurality of air outlet offsets. A wind direction baffle is provided at the air outlet offset, so that the dust and the like blown by the air outlet offset are concentrated in the middle of the bottom of the vehicle frame, and the slag suction port is at the rear end of the vehicle frame. The air outlet offset is provided with a wind direction baffle and the rear end of the vehicle frame is provided with a slag suction port, which generally forms a funnel shape. The floor-sweeping vehicle forms a structure of blowing and sucking air through a suction fan arranged inside. The floor-sweeping vehicle of the present invention has the function of circulating air suction and blowing to clean the ground.

[0006] Further, a spiral steel sheet is provided inside one end of the blow slag pipe, and spiral steel sheets are respectively provided on both sides of the frame. The blow slag pipe forms a shape with a swirling flow backward through the spiral steel sheet.

[0007] The front section of the slag blowing pipe is provided with spiral steel sheets, and the spiral steel sheets are arranged on both sides of the inner frame of the slag blowing pipe. There are spiral steel sheets inside the front section of the slag blowing pipe, and it forms a shape with the vortex going backward, so that the dust blown by the front section of the slag blowing pipe will float backward.

[0008] Furthermore, the slag blowing pipe is connected to the frame of the vehicle body by a telescopic column, and the telescopic column is formed by a hydraulic structure. The slag blowing pipe forms a structure with adjustable height through the telescopic column.

[0009] The slag blowing pipe is connected to the vehicle body through a telescopic column, and the telescopic column is formed by a hydraulic structure, so that the telescopic column can be adjusted in length by a machine. The slag blowing pipe can be adjusted in telescopic length through the telescopic column, making the slag blowing pipe suitable for sweeping and cleaning in various places.

[0010] Furthermore, the top of the main beam frame is provided with a slag blowing pipe. One end of the slag blowing pipe is provided with a first bent round pipe in a square pipe, and the square pipe is arranged on one side of the vehicle body. The slag blowing pipe is provided with a second bent round pipe at one end of the first bent round pipe. The second bent round pipe forms a vehicle model through the frames respectively arranged for the slag blowing pipe. The slag blowing pipes are arranged oppositely according to the vehicle model, and the air outlet offsets respectively arranged by the frames of the slag blowing pipes also correspond to each other. The air blowing direction of the slag blowing pipe is towards the middle of the vehicle body, and the slag suction port is arranged towards the middle of the vehicle body. The slag suction port is connected to the air inlet pipe through an air duct, and the air inlet pipe is connected to the slag storage box through a frame. The frames of the slag blowing pipe and the frames of the slag suction port are connected to each other through the air direction to form a structure of circulating air suction.

[0011] For the ground sweeping vehicle of the present invention, slag blowing pipes are respectively arranged on both sides of the vehicle body frame of the sweeping vehicle. The air outlet offsets respectively arranged by the frames of the slag blowing pipes also form a corresponding structure, so that the slag blowing pipe gives the air blowing direction to the middle of the vehicle body, and a slag suction port is arranged at the tail of the vehicle body. The slag suction port gives the air suction direction to the middle of the vehicle body. The slag suction port is connected to the air inlet pipe through an air duct, and the air inlet pipe is connected to the slag storage box and the suction fan through a frame. The frame setting of the slag blowing pipe and the frame setting of the slag suction port form a structure of air suction circulation, making the road sweeper have a structure of circulating air suction and blowing.

[0012] Furthermore, filter rooms are arranged on both sides and the top of the suction fan. The filter rooms are provided with multiple filter doors, and the filter doors are all formed into a structure that can be opened and closed through frames. The surface of the filter doors is provided with filter nets. A small amount of the air discharged from the suction fan is used for slag blowing and passes through the square pipe, and most of the air is squeezed out through the filter net holes of the filter doors.

[0013] After the air discharged from the suction fan goes out through the filter net holes, there is no dust or slag. The dust and sand remain in the filter net and fall into the sand storage boxes on both sides below, and are sent to the slag yard for treatment. The rear parts on both sides of the slag storage box are the air inlet pipes. The air sucked by the suction fan and the dust and slag carried by the air have to pass through the air pipes and go up into the air duct.

[0014] Furthermore, the air inlet of the exhaust fan is arranged toward the structure on the air duct at the rear of the vehicle, and the air inlet formed by the exhaust fan through the frame is arranged with a circular steel plate and a small-mouth frame of a conical square basket, and the large-mouth frame of the conical square basket is arranged toward the rear of the vehicle to form a structure connected with the air duct. The air of the exhaust fan is discharged from the periphery of the blades, and most of the air is discharged through the filter screen arranged on the filter door, and a small part of the air enters the first slag blowing pipe for cleaning the ground and is discharged.

[0015] The slag suction port is set at the rear lower end of the vehicle. The opening of the slag suction port is higher towards the front and lower towards the middle. There is an upper wind port at the left and right corners of the rear. After the dust and slag enter the slag suction port, they enter the air duct from the upper wind port. There is a wind slot between the upper wind ports at the left and right corners, so that the dust and slag in the port have a place to swirl before reaching the upper wind port. The brush is set at the bottom of the left, right and rear three directions of the slag suction port. When the brush is running to clean the dust and slag on the ground, the dust and slag entering the slag suction port are all surrounded. The brush structure has several spring structures on the brush frame rod. There are some uneven places on the ground, and the spring will automatically adjust the brush to balance the ground.

[0016] Furthermore, the bottom of the filter room on the left and right sides of the exhaust fan is vertically downwardly formed with a square tube, and the square tube is provided with a damper switch to control the air volume required to blow away the dust residue on the ground.

[0017] A square tube is constructed vertically downward from the bottom of the filter room on the left and right sides of the exhaust fan at a certain position from the ground. A damper switch is set on each square tube. The function of the damper switch is to control the air volume required to blow away the dust on the ground.

[0018] Furthermore, the first slag blowing pipe, the first curved round pipe, the second curved round pipe, the bifurcated pipe and the second slag blowing pipe have a first curved round pipe with a curvature arranged outwardly on each of the two side square pipes, the curvature direction is balanced forward, and each has a second curved round pipe bent 90 degrees, the curvature direction extends outward, connected to the pipe mouth of the first curved round pipe, and buckled with the steel pipe sleeve with a rubber ring, which can rotate 360 ​​degrees, and a bifurcated pipe is balancedly welded backward on the second curved round pipe extending outward, and a second bifurcated pipe is welded on the pipe mouth of the second 90-degree second curved round pipe. A first slag blowing pipe and a second slag blowing pipe with a 100-degree bend. The joints of the two second curved round pipes and the second slag blowing pipe are also connected with a rubber ring and a steel pipe sleeve. The bending direction faces forward and can rotate 360 ​​degrees. The first slag blowing pipe and the second slag blowing pipe are relatively wide in the front and narrow in the back when blowing slag. A spiral steel block is arranged in the guide pipe section. Three air outlets are opened in the middle of the first slag blowing pipe and the second slag blowing pipe, and a steel sheet is arranged outside the air outlet to block the air outlet direction, so that the dust and slag are moved away by blowing on the ground and then concentrated and sucked into the vehicle.

[0019] At a certain position above the ground, the outer sides of the lower ends of the two side pipes each extend outwards to form the first slag blowing pipe of the structure. First, use a 90-degree first bent round pipe, and then use a 90-degree second bent round pipe. They are connected to each other by rubber rings and steel pipe sleeves, so that the joints can rotate. Weld a first bent round pipe and a bifurcated pipe horizontally towards the rear of the vehicle on the second bent round pipe. Structure another second slag blowing pipe at the other end of the second bent round pipe mouth. The joints are also connected by rubber rings and steel pipe sleeves. Similarly, the second bent round pipe can rotate. When cleaning and sucking the dust and slag on the ground, the guiding pipe faces forward. When collecting the entire first slag blowing pipe, rotate the guiding pipe of the second slag blowing pipe towards the rear and collect it with a hydraulic pump and place it next to the slag storage box. The overall structure of the first slag blowing pipes on both sides is wider at the front and narrower at the rear. The guiding pipe sections of the second slag blowing pipes extending forward are smaller. There are spiral steel sheets inside the guiding pipes, so that the output air forms a whirlwind, blowing the dust and slag on the roadside or street side along with the wind towards the middle part of the lane. There are three air outlets provided below the rear of the guiding pipes on both sides. These three air outlets are getting closer to the middle part one by one, so that the dust and slag gradually move towards the center position along with the wind. There is a steel sheet structure around each air outlet to half-surround the air outlet, so that the air blows obliquely on the ground to move the dust and slag away. The last air outlet at the rear of the first slag blowing pipes on both sides is an air outlet with a deviation. The direction of the air outlet with a deviation faces the center of the slag suction port at the lower rear part of the vehicle. During operation, the dust and slag moved to the middle part are blown into the slag suction port. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the left side elevation structure diagram of the vehicle protected by the present invention.

[0021] Figure 2 This is the right side elevation structure diagram of the vehicle protected by the present invention.

[0022] Figure 3 This is the cross-sectional structure diagram of the exhaust fan part of the present invention.

[0023] Figure 4 This is the unfolded plane structure diagram of the first slag blowing pipe of the present invention.

[0024] Figure 5 This is the rear elevation structure diagram of the present invention.

[0025] Figure 6 This is the schematic diagram of the guiding port structure of the present invention.

[0026] As shown in the figure: beam frame 1, circular steel plate 2, conical square basket 3, exhaust fan 6, shaft sleeve 7, air inlet 12, slag storage box 14, hydraulic pump 16, filter door 19, filter screen 20, air inlet pipe 21, air duct 22, slag suction port 24, brush 25, upper air outlet 26, air trough 27, square pipe 29, switch 30, first slag blowing pipe 31, first bent round pipe 32, second bent round pipe 33, steel pipe sleeve 34, bifurcated pipe 35, second slag blowing pipe 37, guiding pipe 38, telescopic shaft 39, spiral steel sheet 40, air outlet with deviation 42. Detailed implementation mode

[0027] The present invention will be further described below in conjunction with the accompanying drawings:

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0029] The working principle of the present invention is as follows: It includes a main beam frame 1. Blowing slag pipes 31 are provided on both sides of the main beam frame 1. The front ends of the blowing slag pipes 31 on both sides are wider and the rear ends are narrower, forming a funnel shape. The rear end of the main beam frame 1 corresponds to the slag suction port 24. An air outlet offset 42 is provided on the blowing slag pipe 31, and a wind direction baffle is provided at the air outlet offset 42. The bottom of the road sweeper is provided with a main beam frame 1. The blowing slag pipes 31 are respectively arranged on both sides of the frame. The blowing slag pipes 31 are relatively arranged on both sides of the vehicle frame, and each blowing slag pipe 31 is provided with a plurality of air outlet offsets 42. A wind direction baffle is provided at the air outlet offset 42, so that the dust and the like blown by the air outlet offset are concentrated in the middle of the bottom of the vehicle frame. The slag suction port 24 is at the rear end of the vehicle frame. The air outlet offset 42 is provided with a wind direction baffle and the rear end of the vehicle frame is provided with a slag suction port 24, which generally forms a funnel shape. The road sweeper is provided with a suction fan 6 inside, so that the road sweeper forms a structure of blowing and sucking air through the suction fan 6. The road sweeper of the present invention has the function of circulating air suction and blowing to clean the ground.

[0030] The working principle of the present invention is as follows: A spiral steel sheet 40 is provided inside one end of the first blowing slag pipe 31, and spiral steel sheets 40 are respectively arranged on both sides of the frame. The blowing slag pipe 31 forms a shape with a vortex going backward through the spiral steel sheet 40. The front section of the first blowing slag pipe 31 is provided with a spiral steel sheet 40, and the spiral steel sheet 40 is arranged on both sides of the inner frame of the first blowing slag pipe 31. The front section of the blowing slag pipe 31 is provided with a spiral steel sheet 40 inside, and forms a shape with a vortex going backward, so that the dust blown by the front section of the blowing slag pipe 31 will float backward.

[0031] The working principle of the present invention is as follows: The first blowing slag pipe 31 is connected to the frame of the vehicle through a telescopic column 39, and the telescopic column 39 is formed by a hydraulic structure. The first blowing slag pipe 31 forms a structure with adjustable height through the telescopic column 39. The first blowing slag pipe 31 is connected to the vehicle frame through the telescopic column 39, and the telescopic column 39 is formed by a hydraulic structure, so that the telescopic column 39 has the function of adjusting the telescopic length through the machine. The blowing slag pipe 31 has the function of adjusting the telescopic length through the telescopic column 39, so that the blowing slag pipe 31 is suitable for sweeping and cleaning in various places.

[0032] The working principle of the present invention is as follows: The present invention mainly adopts a steel structure. The front of the vehicle and the engine, the vehicle frame 1, and the wheels are equipped with a hydraulic structure. The blower 6 is driven in series by a V-belt on the frame 1. A first slag blowing pipe 31 is provided at the top of the frame 1. One end of the first slag blowing pipe 31 is provided with a first bent circular pipe 32 in a square pipe 29, and the square pipe 29 is arranged on one side of the vehicle frame. One end of the first bent circular pipe 32 of the first slag blowing pipe 31 is provided with a second bent circular pipe 33. The second bent circular pipe 33 is respectively arranged by a frame to form the vehicle model with the frame of the slag blowing pipe 31. The slag blowing pipes 31 are arranged opposite to each other according to the vehicle model, and the air outlet offset ports 42 respectively arranged by the frames of the slag blowing pipes 31 also correspond to each other. The blowing direction of the slag blowing pipe 31 is towards the middle of the vehicle frame, and the slag suction port 24 is arranged towards the middle of the vehicle frame. The slag suction port 24 is connected to the air inlet pipe 21 through the air duct 27. The air inlet pipe 21 is connected to the slag storage box 14 through a frame. The overall frames of the slag blowing pipe 31 and the overall frame of the slag suction port 24 are connected to each other through the wind direction to form a structure of circulating air suction.

[0033] The working principle of the present invention is as follows: The slag blowing pipes 31 are respectively arranged on both sides of the vehicle frame. The air outlet offset ports 42 respectively arranged by the frames of the slag blowing pipes 31 also form a corresponding structure, so that the slag blowing pipes 31 direct the blowing wind towards the middle of the vehicle frame. A slag suction port 24 is arranged at the tail of the vehicle frame, and the slag suction port 24 directs the suction wind towards the middle of the vehicle frame. The slag suction port 24 is connected to the air inlet pipe 21 through the air duct 27. The air inlet pipe 21 is connected to the slag storage box 14 and the blower 6 through a frame. The frame arrangement of the slag blowing pipe 31 and the frame arrangement of the slag suction port 24 form a structure of air suction circulation, so that the road sweeper has a structure of circulating air suction and blowing.

[0034] The working principle of the present invention is as follows: One end structure of the footrest of the blower 6 is on the frame 1 of the vehicle frame, and the other end structure is on the frame of the slag storage box 14. A shaft is equipped at the upper end of the frame. A V-belt pulley is structured at one end of the shaft. It is driven in series by the V-belt pulley on the shaft of the motor 5. The shaft sleeve 7 of the blower 6 is structured at the middle position of the shaft. Blades 43 and a circular steel plate 45 are structured on the shaft sleeve 7. The blades 43 are composed of several pieces. Half of them are spiral-shaped, and the other half are vortex-shaped grooves. One side of the spiral-shaped blade 43 is structured on the circular steel plate 45, and the opposite side is structured on the circular steel plate 2. On the contrary, one side is structured on the shaft sleeve 7. One side of each vortex-shaped groove blade 43 is structured on the circular steel plate 45, and the opposite side is structured on the circular steel plate 2. The two different-shaped blades are each separated by one piece and structured.

[0035] The working principle of the present invention is: the air inlet 12 of the exhaust fan 6 faces the air duct 22 at the rear of the vehicle, and a circular steel plate 2 and a small opening of a conical square basket 3 are used to form a structure together at the air inlet 12 section of the exhaust fan 6 shell opening, and the large opening of the conical square basket 3 faces the rear of the vehicle and communicates with the air duct 22. The exhaust fan 6 is outward from the periphery of the blade 43, and most of the wind goes out from the filter screen 20 on the filter door 19, and a small amount of wind enters the first slag blowing pipe 31 and the second slag blowing pipe 37 to clean the ground and go out.

[0036] The working principle of the present invention is: filter rooms are arranged on both sides and the top of the exhaust fan 6, and filter doors 19 are arranged in the filter rooms. Each filter door 19 can be opened and closed, and the face of the filter door 19 is provided with a filter screen 20. The top and front of the filter rooms on both sides can be connected. A ventilation square tube 29 extends vertically downward from the bottom of the filter rooms on both sides of the exhaust fan 6. A small amount of wind used for blowing slag must pass through the square tube 29 when the exhaust fan 6 is used. Most of the wind is squeezed out from the holes of the filter screen 20 of the filter door 19, and the dust falls into the sand storage box 15 under the door 19 and is sent to the slag unloading site for treatment.

[0037] The working principle of the present invention is: the rear end of the left and right sides of the slag storage box 14 has an air inlet pipe 21, the upper end of the air inlet pipe 21 is connected with the wind slot 27, and the lower part is connected with the slag suction port 24. The function of the air inlet pipe 21 is to transport the dust and slag from the slag suction port 24 to the upper part together with the dust and slag. The bottom of the slag storage box 14 is firmly structured in the middle and rear part of the beam frame 1, and the width of both sides exceeds the rear end of the beam frame 1 of the vehicle and the slag suction port 24, and is connected with a hydraulic pump 26. The purpose is to extend the hydraulic pump 26 when cleaning the dust and slag on the ground, and the brush 25 on the side of the slag suction port 24 at the lower end of the rear of the vehicle can touch the ground to work. When the dust on the ground is not being sucked, the hydraulic pump 26 contracts, and the suction port 24 is separated from the ground. The suction port 24 is set at the rear lower end of the vehicle, and the opening faces the center of the front of the vehicle. The opening should be higher so that all the dust blown from the front can enter it. The suction port 24 is lower in the middle part of the rear, and it rises at the rear and is provided with a wind slot 27, so that the dust has room to turn when it enters the back. There is a square upper wind port 26 on the top surface of the left and right corners behind the suction port 24, which is connected to the air inlet pipe 21 on both sides of the rear end of the slag storage box 14 and is combined with the hydraulic pump 26 to form a telescopic movable structure. When running, the dust goes from the upper wind port 26 to the air inlet pipe 21 with the wind.

[0038] The working principle of the present invention is: a square tube 29 is vertically formed downward from the bottom of the filter compartment on the left and right sides of the exhaust fan 6, and a damper switch 30 is arranged on the square tube 29. The function of the switch 30 is to control the air volume required for blowing away the dust residue on the ground. If the air volume is large, the dust residue is easily blown up and floats everywhere, and if the air volume is small, the dust residue cannot be moved to the best position, so the switch 30 plays a great role.

[0039] The working principle of the present invention is as follows: The first slag blowing pipe 31, the first bent round pipe 32, the second bent round pipe 33, the bifurcated pipe 35, and the second slag blowing pipe 37 for cleaning and sucking the dust and slag on the ground are each a square pipe 29 extending vertically downward from both sides, with a first bent round pipe 32 with a 90-degree bend extending outward along each side. The bending direction is balanced forward. Then, each is further provided with a second bent round pipe 33 with a 90-degree bend, and the bending direction extends outward. The pipe orifice of the first bent round pipe 32 is connected with a rubber ring and a steel pipe sleeve 34, and can rotate 360 degrees. A bifurcated pipe 35 is welded horizontally backward on the second bent round pipe 33 extending outward. On the pipe orifice of the second 90-degree second bent round pipe 33, a second slag blowing pipe 37 with a bend of about 100 degrees is further provided. The connection point of the two pipes, namely the second bent round pipe 33 and the second slag blowing pipe 37, is also connected with a rubber ring and a steel pipe sleeve 36. The bent guiding port 38 is directed forward and can rotate 360 degrees. When the first slag blowing pipes 31 and the second slag blowing pipes 37 on both sides blow slag, they are arranged relatively in a front-wide and rear-narrow manner. The purpose is to blow the dust and slag from the front to the central part at the back, and finally send the dust and slag into the slag suction port 24. The first slag blowing pipes 31 and the second slag blowing pipes 37 extending forward on both sides are provided with a spiral steel sheet 40 structure in the guiding port 38 section of the pipe orifice, so that the wind blowing on the two sides at the front becomes a cyclone, and the dust and slag on the two sides are swirled into the central position. Three air outlets 41 are respectively opened in the middle parts of the first slag blowing pipes 31 and the second slag blowing pipes 37 on both sides. A steel sheet is arranged outside each air outlet 41 to block the direction of the blown air, so that the blown air blows obliquely on the ground to move the dust and slag away. The last air outlet 42 in the rear direction on both sides forms an air outlet offset 42, and the air outlet direction is towards the center of the slag suction port 24 at the lower part behind the vehicle. During operation, the wind from the air outlet offset 42 sends the dust and slag moved to the middle part in front into the slag suction port 24. The first slag blowing pipes 31 and the second slag blowing pipes 37 extending forward on both sides are supported by a 90-degree lifting rod 8 under the pipes. The other end of the lifting rod is welded to another first slag blowing pipe 31 at the back, so that the first slag blowing pipes 31 and the second slag blowing pipes 37 in the front can run smoothly. The first slag blowing pipes 31, the first bent round pipes 32, the second bent round pipes 33, the bifurcated pipes 35, and the second slag blowing pipes 37 on both sides are contracted and expanded by using a hydraulic pump 16. The rear seat structure of the hydraulic pump is on the beam frame 1, and the fulcrum structure is on the second bent round pipe 33 extending outward. When contracting, first turn the pipes, namely the first slag blowing pipe 31 and the second slag blowing pipe 37 facing forward, backward, and then retract the extended pipes, namely the first slag blowing pipe 31, the first bent round pipe 32, the second bent round pipe 33, the bifurcated pipe 35, and the second slag blowing pipe 37, and stick them to the slag storage box 14. When cleaning and sucking the dust and slag on the ground, first start the hydraulic pump 16 to extend the pipes, namely the first slag blowing pipe 31, the first bent round pipe 32, the second bent round pipe 33, the bifurcated pipe 35, and the second slag blowing pipe 37, to a certain position above the ground, and move the pipe, namely the first slag blowing pipe 31 and the second slag blowing pipe 37, that should face forward, onto the lifting rod.

Claims

1. A circulating air blowing mechanism of a floor sweeper, comprising a main frame (1) and an exhaust fan (6), characterized in that: First slag blowing pipes (31) are provided on both sides of the beam frame (1), and the front ends of the first slag blowing pipes (31) on both sides are wider and the rear ends are narrower to form a funnel shape. The rear end of the beam frame (1) corresponds to the slag suction port (24). The first slag blowing pipe (31) is provided with an air outlet (42), and a wind direction baffle is provided at the air outlet (42). The exhaust fan (6) is connected to the first slag blowing pipe (31) and the slag suction port (24) by pipelines to form a cyclic suction and blowing structure. A spiral steel sheet (40) is provided inside one end of the first slag blowing pipe (31), and spiral steel sheets (40) are provided on both sides of the frame respectively, and the first slag blowing pipe (31) forms a vortex backward shape through the spiral steel sheet (40); the first slag blowing pipe (31) is connected to the frame of the vehicle frame through a telescopic column (39), and the telescopic column (39) is formed by a hydraulic structure, and the first slag blowing pipe (31) forms a structure with adjustable height through the telescopic column (39); the large beam frame (1) A first slag blowing pipe (31) is provided on the top, and one end of the first slag blowing pipe (31) is provided on a square pipe (29) using a first curved round pipe (32), and the square pipe (29) is provided on one side of the frame; the first slag blowing pipe (31) is provided on one end of the first curved round pipe (32), and a second curved round pipe (33) is provided on the frame respectively provided with the first slag blowing pipe (31) to form a vehicle body; the first slag blowing pipe (31) is provided relatively to the vehicle body through the vehicle body, and the first slag blowing pipe (31) The air outlets (42) respectively arranged on the frame also correspond to each other. The air blowing guide of the first slag blowing pipe (31) is directed toward the middle of the frame, and the slag suction port (24) is arranged toward the middle of the frame. The slag suction port (24) is connected to the air inlet pipe (21) through the air groove (27), and the air inlet pipe (21) is connected to the slag storage box (14) through the frame. The frame of the first slag blowing pipe (31) and the frame of the slag suction port (24) are connected to each other through the wind direction to form a circulating suction structure.

2. The circulating air blowing mechanism of the floor sweeper according to claim 1 is characterized in that: The air inlet (12) of the exhaust fan (6) is arranged toward the structure on the air duct (22) at the rear of the vehicle, and the air inlet (12) formed by the exhaust fan (6) through the frame is arranged with a circular steel plate (2) and a small-mouth frame of a conical square basket (3) structured together, and the large-mouth frame of the conical square basket (3) is arranged toward the rear of the vehicle to form a structure communicating with the air duct (22), and the air outlet of the exhaust fan (6) is discharged outward from the periphery of the blades (43), and most of the air is discharged through the filter screen (20) arranged on the filter door (19), and a small part of the air enters the first slag blowing pipe (31) for cleaning and sucking the ground and is discharged.

3. The circulating air blowing mechanism of the floor sweeper according to claim 1 is characterized in that: The slag suction port (24) adopts a frame to form a trumpet-shaped structure. The slag suction port (24) is arranged at the rear lower end of the vehicle and is provided with an air slot (27) connected to the air inlet pipe (21). The slag suction port (24) and the air inlet pipe (21) are in communication and are combined with a hydraulic pump (16) to form a telescopic structure. The edges of the slag suction port (24) in the left, right and rear directions are in contact with the ground and are provided with brushes (25) to block dust and slag.

4. The circulating air blowing mechanism of the floor sweeper according to claim 1 is characterized in that: A square tube (29) is formed vertically downward from the bottom of the filter compartment on the left and right sides of the exhaust fan (6), and the square tube (29) is provided with a damper switch (30) for controlling the air volume required for blowing away dust residue on the ground.

5. The circulating air blowing mechanism of the floor sweeper according to claim 1 is characterized in that: The first slag blowing pipe (31), the first curved circular pipe (32), the second curved circular pipe (33), the bifurcated pipe (35), and the second slag blowing pipe (37) are each formed by extending outwards from the square pipe (29) vertically downwards on both sides, and each of the first curved circular pipes (32) has a curvature of (90) degrees, and the curvature direction is balanced forward, and each of the second curved circular pipes (33) is bent 90 degrees, and the curvature direction extends outwards, connected to the pipe mouth of the first curved circular pipe (32), and buckled with the steel pipe sleeve (34) by a rubber ring, and can rotate 360 ​​degrees. A bifurcated pipe (35) is balancedly welded to the rear of the second curved circular pipe (33) extending outwards, and a bifurcated pipe (35) is welded to the pipe mouth of the second curved circular pipe (33) having a curvature of (90) degrees. A first slag blowing pipe (31) and a second slag blowing pipe (37) are used, each of which is bent at 100 degrees. The joints of the two second bent round pipes (33) and the second slag blowing pipe (37) are also buckled with a steel pipe sleeve (34) by a rubber ring. The bending direction faces forward and the pipe can rotate 360 ​​degrees. The first slag blowing pipe (31) and the second slag blowing pipe (37) are arranged relatively wide in the front and narrow in the back when blowing slag. A spiral steel sheet (40) is arranged in the guide pipe (38). Three air outlets (13) are respectively opened in the middle of the first slag blowing pipe (31) and the second slag blowing pipe (37), and a steel sheet is arranged outside the air outlet (13) to block the air outlet direction so that the dust is blown on the ground and moved away, and then concentratedly sucked into the vehicle.

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